Title of invention: fusing device
Technical field
[One]
This application is an application for claiming priority for Korean Patent Application No. 10-2018-0092537 filed on August 08, 2018, and all contents disclosed in the specification and drawings of the application are incorporated herein by reference.
[2]
The present invention relates to a fusing device, and more particularly, to a fusing device capable of effectively fusing a path in a process of fusing a connection relationship between a main path and a sub path provided in a battery pack.
Background
[3]
In recent years, as the demand for portable electronic products such as notebook computers, video cameras, portable telephones, etc. is rapidly increasing, and development of electric vehicles, energy storage batteries, robots, satellites, etc. is in earnest, high-performance secondary batteries capable of repetitive charging and discharging Research on is being actively conducted.
[4]
Currently commercialized secondary batteries include nickel cadmium batteries, nickel hydride batteries, nickel zinc batteries, and lithium secondary batteries, among which lithium secondary batteries have little memory effect compared to nickel-based secondary batteries, so charging and discharging are free. The self-discharge rate is very low and the energy density is high.
[5]
On the other hand, the safety issue of the battery is the biggest issue in society in recent years. In the case of laptops and mobile phones, the number of users is rapidly increasing, and battery explosion can lead to damage to portable electronic products as well as to fire, so it is urgent to secure battery safety. Therefore, conventionally, various protection devices for securing the safety of the battery by blocking charge/discharge current when detecting an abnormal state of the battery have been used.
[6]
Such a conventional battery pack protection device is connected to a cell assembly made of at least one battery cell, and is generally a line through which charging/discharging current flows to protect the battery pack when abnormal conditions such as overcharge, overdischarge, short circuit, and overcurrent occur. It includes a fuse that blocks the flow of current by irreversibly disconnecting.
[7]
A fuse is a type of automatic circuit breaker used to prevent overcurrent from continuing to flow through a wire. For example, a fuse operates in such a way that heat generated by an overcurrent flowing through a wire melts itself and disconnects the wire.
[8]
In general, the fuse is configured to perform only one operation of disconnecting a wire in an emergency. However, even in an emergency, the necessity of disconnecting the main path and connecting the sub paths for power transmission or signal transmission is also required.
Detailed description of the invention
Technical challenge
[9]
The present invention relates to an improved fusing apparatus capable of effectively fusing a path in the process of fusing a connection relationship between a main path and a sub path provided in a battery pack, as invented under the background of the prior art as described above.
[10]
Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by examples of the present invention. In addition, it will be easily understood that the objects and advantages of the present invention can be realized by the means shown in the claims and combinations thereof.
Means of solving the task
[11]
A fusing device according to an embodiment of the present invention for achieving the above object includes: a main connection member provided on a main path and configured to electrically connect one side and the other side to the main path; A sub connection member provided on the sub-path and configured to electrically connect one side and the other side to the sub-path, respectively; And a connection relationship between the main connection member and the sub connection member and configured to be movable and coupled from the main connection member in the direction of the sub connection member to change the connection state of the main connection member to the connection state of the sub connection member. It includes a switching member configured to be able to convert.
[12]
The main path may be electrically connected to an anode end and a cathode end of the cell assembly, and may be configured to conduct electricity when the main connection member is connected.
[13]
The sub-path may have a discharge resistance, are electrically connected to an anode end and a cathode end of the cell assembly, and may be configured to be energized when a connection relationship is switched to a connection state of the sub connection member.
[14]
In addition, the switching member may be configured to open a connection relationship between the main connection member to disconnect the main path and close the connection relationship between the sub connection member to connect the sub path.
[15]
In addition, the main connection member may include a first main connection member and a second main connection member that are made of an electrically conductive material and are provided to be spaced apart from each other by a predetermined distance on the same line of the main path.
[16]
In addition, in the main connection member, one side of the first main connection member is electrically connected to one end of the main path, and the other side of the second main connection member is electrically connected to the other end of the main path. The other side of the first main connection member and one side of the second main connection member may be configured to be electrically connected to the conversion member.
[17]
In addition, the sub-connection member may include a first sub-connection member and a second sub-connection member including an electrically conductive material and provided to be spaced apart from each other by a predetermined distance.
[18]
In addition, in the sub-connection member, the conversion member is coupled to a space where the first sub-connection member and the second sub-connection member are spaced apart, so that the first sub-connection member and the second sub-connection member are electrically connected. It can be configured to be able to.
[19]
In addition, the first sub-connection member and the second sub-connection member may be provided to be parallel to each other, and a partial area of ​​each of the first sub-connection member and the second sub-connection member may be configured to face each other.
[20]
In addition, the switching member is coupled to the space between the first main connection member and the second main connection member, the body portion configured to connect between the first main connection member and the second main connection member and the body portion It is mounted on and is coupled to the space between the first sub connection member and the second sub connection member may include an insert configured to connect between the first sub connection member and the second sub connection member.
[21]
In addition, the first sub-connection member and the second sub-connection member may be provided on the same line in a vertical direction of the sub-path, and may be configured to each have a hole configured to pass through the insertion part.
[22]
In addition, the fusing device according to another embodiment of the present invention further includes an operation member configured to move and contact one surface of the body portion in a vertical direction of the main path and the sub path to detach the body portion from the main connection member. can do.
[23]
A fusing device according to another embodiment of the present invention is a guide configured to be in contact with the operation member, the switching member and the sub connection member in the vertical direction to align the operation member, the switching member and the sub connection member It may further include a member.
[24]
The switching member is formed of an insulating material, is mounted on the insertion part in a vertical direction of the main path and the sub path, further comprises an insulating part configured to connect between the first sub connection member and the second sub connection member Can include.
[25]
The switching member may include a plurality of inserts mounted on the main body.
[26]
The first sub-connection member and the second sub-connection member may be configured to each have a plurality of holes configured to pass through each of the plurality of insertion portions.
[27]
A battery pack according to another embodiment of the present invention may include a fusing device according to the present invention.
Effects of the Invention
[28]
According to an aspect of the present invention, there is an advantage of being able to disconnect the main path and connect the sub-path at the same time by using the switching member.
[29]
In addition, according to an aspect of the present invention, there is an advantage that the switching member can move effectively by using the operation member.
[30]
In particular, according to an embodiment of the present invention, a fusing device capable of effectively switching a connection relationship can be provided by moving and coupling the switching member from the main path to the sub path.
[31]
In addition to the present invention may have a variety of other effects, these other effects of the present invention can be understood by the following description, can be more clearly understood by the embodiments of the present invention.
Brief description of the drawing
[32]
The following drawings attached to the present specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of ​​the present invention together with the detailed description of the present invention to be described later, so the present invention is described in such drawings. It should not be interpreted as being limited to
[33]
1 is a diagram schematically illustrating a configuration in which a fusing device according to an embodiment of the present invention is connected to some components of a battery pack.
[34]
2 is a perspective view showing a fusing device according to an embodiment of the present invention.
[35]
3 is a perspective view showing a fusing device according to another embodiment of the present invention.
[36]
4 is a perspective view showing a fusing device according to another embodiment of the present invention.
[37]
5 and 6 are perspective views illustrating an operating state of a fusing device according to still another embodiment of the present invention.
[38]
7 is a perspective view showing a fusing device according to another embodiment of the present invention.
[39]
8 and 9 are perspective views illustrating an operating state of a fusing device according to another embodiment of the present invention.
[40]
10 is a perspective view showing a fusing device according to another embodiment of the present invention.
[41]
11 is a diagram schematically illustrating a configuration in which a fusing device according to another embodiment of the present invention is connected to some components of a battery pack.
Mode for carrying out the invention
[42]
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventors appropriately explain the concept of terms in order to describe their own invention in the best way. Based on the principle that it can be defined, it should be interpreted as a meaning and concept consistent with the technical idea of ​​the present invention.
[43]
Accordingly, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all of the technical spirit of the present invention. It should be understood that there may be equivalents and variations.
[44]
In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the subject matter of the present invention, the detailed description thereof will be omitted.
[45]
Throughout the specification, when a certain part "includes" a certain component, it means that other components may be further included, rather than excluding other components unless specifically stated to the contrary.
[46]
In addition, throughout the specification, when a part is said to be "connected" to another part, it is not only "directly connected", but also "indirectly connected" with another element interposed therebetween. Include.
[47]
[48]
The fusing device 1 according to an embodiment of the present invention may be a fuse provided in a battery pack. For example, the fusing device 1 according to an embodiment of the present invention may be provided on a charge/discharge path configured to supply charge/discharge power to one or more secondary batteries to block the charge/discharge path. More specifically, the fusing device 1 according to an embodiment of the present invention may be electrically connected to the main path L1 and the sub path L2. Here, the main path L1 is a path for supplying power from the cell assembly 10 to the vehicle load by connecting between the cell assembly 10 including one or more secondary batteries provided in the battery pack and the vehicle load. I can. In addition, the sub-path L2 powers the signal device 30 to transmit an emergency signal from the signaling device 30 to the external device 50 when an emergency situation occurs and the main path L1 is blocked. It may be a path for supplying or transmitting a signal to the signal device 30. For example, when the fusing device 1 according to an embodiment of the present invention is provided in a battery pack of a vehicle, the external device 50 may be a display device notifying the driver of an emergency situation. Alternatively, the external device 50 may be an electronic control unit (ECU) of a vehicle.
[49]
1 is a diagram schematically illustrating a configuration in which a fusing device according to an embodiment of the present invention is connected to some components of a battery pack, and FIG. 2 is a perspective view illustrating a fusing device according to an embodiment of the present invention.
[50]
1 and 2, the fusing device 1 according to an embodiment of the present invention includes a main connection member 100, a sub connection member 200, and a conversion member 300.
[51]
The main connection member 100 may be provided on the main path L1. More specifically, the main connection member 100 may be configured to be electrically connected between the main paths L1 so that the main path L1 is electrically closed circuit. For example, as shown in the configuration of FIGS. 1 and 2, the main connection member 100 is provided on the main path L1 and may be electrically connected between the main paths L1.
[52]
In addition, the main connection member 100 may have one side and the other side electrically connected to the main path L1, respectively. For example, as shown in the configuration of FIG. 2, one side and the other side of the main connection member 100 may be electrically connected to one end and the other end of the main path L1, respectively.
[53]
The sub connection member 200 may be provided on the sub path L2. More specifically, the sub-connection member 200 may be configured to be electrically connected between the sub-paths L2 so that the sub-path L2 is electrically closed circuit. For example, as shown in the configuration of FIGS. 1 and 2, the sub connection member 200 is provided on the sub path L2 and may be electrically connected between the sub paths L2.
[54]
In addition, one side and the other side of the sub connection member 200 may be electrically connected to the sub path L2, respectively. For example, as shown in the configuration of FIG. 2, one side and the other side of the sub connection member 200 may be electrically connected to one end and the other end of the sub path L2, respectively.
[55]
The conversion member 300 may be provided between the main connection member 100 and the sub connection member 200. For example, as shown in the configuration of Figure 2, the switching member 300 is provided between the main connection member 100 and the sub connection member 200, the main connection member 100 and the sub connection member ( 200) may be configured to be connected to each.
[56]
In addition, the conversion member 300 may be configured to be movable and coupled in the direction of the sub connection member 200 from the main connection member 100. For example, in the embodiment of FIG. 2, the switching member 300 may be connected to the main connection member 100 when the connection state of the main path L1 is a closed circuit. Subsequently, the conversion member 300 may move from the main connection member 100 in the direction of the sub connection member 200 to be connected to the sub connection member 200. In this case, the conversion member 300 may be electrically coupled to the sub connection member 200.
[57]
In addition, the conversion member 300 may be configured to convert a connection relationship from a connection state of the main connection member 100 to a connection state of the sub connection member 200. For example, the switching member 300 is a connection state of the main connecting member 100 in which the main connecting member 100 is electrically connected to the switching member 300 to become a closed circuit and the main path L1 is electrically connected. From, the sub-connection member 200 is electrically connected to the switching member 300 to become a closed circuit, and the connection relationship can be switched to a connection state of the sub-connection member 200 through which the sub-path L2 is electrically connected.
[58]
Preferably, as shown in the configuration of FIG. 2, the main connection member 100 according to an embodiment of the present invention may be configured to extend long in one direction (D1 direction) on the main path L1. In addition, the sub connection member 200 may be configured to extend long in one direction (D1 direction) on the sub path L2.
[59]
Preferably, the switching member 300 according to an embodiment of the present invention opens the connection relationship of the main connection member 100 to disconnect the main path L1, and closes the connection relationship of the sub connection member 200 It may be configured to connect the sub-path L2. For example, the switching member 300 moves from the main connection member 100 in the direction of the sub connection member 200 and is coupled to the sub connection member 200 so that the main path L1 becomes an open circuit. The sub-path L2 can be closed.
[60]
More preferably, the conversion member 300 according to an embodiment of the present invention may include a protrusion 301 as shown in the configuration of FIG. 2. In addition, the main connection member 100 and the sub connection member 200 according to an embodiment of the present invention may each include a concave portion 201 as shown in the configuration of FIG. 2.
[61]
The protrusions 301 may be provided at both ends of the conversion member 300, respectively. In addition, the protrusion 301 may be configured to protrude outward from the switching member 300, as shown in the configuration of FIG. 2.
[62]
The concave portion 201 may be provided on one side and the other side of the main connection member 100 and the sub connection member 200, respectively. In addition, the concave portion 201 may be configured to form a hollow in the inner direction of each of the main connection member 100 and the sub connection member 200, as shown in the configuration of FIG.
[63]
Preferably, the main connection member 100 according to an embodiment of the present invention may include a first main connection member 110 and a second main connection member 120.
[64]
The first main connection member 110 and the second main connection member 120 may include an electrically conductive material and may be provided to be spaced apart from each other by a predetermined distance on the same line of the main path L1. For example, as shown in the configuration of Figure 2, the first main connection member 110 and the second main connection member 120, a predetermined distance D1 from each other on the extension line of the main path (L1) It may be provided so as to be spaced apart. In this case, the separation distance D1 may be the same as the length of the switching member 300.
[65]
More preferably, as shown in the configuration of Figure 2, the main connection member 100 according to an embodiment of the present invention, one side of the first main connection member 110 is the main path (L1) It is electrically connected to one end, and the other side of the second main connection member 120 may be configured to be electrically connected to the other end of the main path L1.
[66]
In addition, the main connection member 100 may be configured such that the other side of the first main connection member 110 and one side of the second main connection member 120 can be electrically connected to the conversion member 300. For example, as shown in the configuration of FIG. 2, the concave portion 201 formed on the other side of the first main connecting member 110 and the concave portion 201 formed on one side of the second main connecting member 120 The protrusions 301 of the conversion member 300 may be coupled respectively.
[67]
Preferably, the sub connection member 200 according to an embodiment of the present invention may include a first sub connection member 210 and a second sub connection member 220.
[68]
The first sub-connection member 210 and the second sub-connection member 220 may include an electrically conductive material and may be provided to be spaced apart from each other by a predetermined distance. For example, as shown in the configuration of Figure 2, the first sub-connection member 210 and the second sub-connection member 220, a predetermined distance D1 from each other on the extension line of the main path (L1) It may be provided so as to be spaced apart. In this case, the separation distance D1 may be the same as the length of the switching member 300 in one direction (D1 direction), as shown in the configuration of FIG. 2.
[69]
More preferably, the sub-connection member 200 according to an embodiment of the present invention includes the switching member 300 in a spaced apart from the first sub-connection member 210 and the second sub-connection member 220 Combined, the first sub-connection member 210 and the second sub-connection member 220 may be configured to be electrically connected. For example, as shown in the configuration of FIG. 2, the sub connection member 200 is electrically connected by the switching member 300 being coupled between the first sub connection member 210 and the second sub connection member 220. Can be connected to. In this case, the protrusion 301 provided in the conversion member 300 and the concave part 201 provided in the sub connection member 200 may be coupled.
[70]
[71]
3 is a perspective view showing a fusing device according to another embodiment of the present invention, and FIG. 4 is a perspective view showing a fusing device according to another embodiment of the present invention. In addition, in the present embodiment, a detailed description of portions to which the description of the previous embodiment may be similarly applied will be omitted, and portions with differences will be mainly described.
[72]
First, referring to FIG. 3, the sub connection member 200 of the fusing device 1 according to an embodiment of the present invention includes a first sub connection member 210 and a second sub connection member 220. I can.
[73]
Preferably, the first sub-connection member 210 and the second sub-connection member 220 according to an embodiment of the present invention may be provided to be parallel to each other. For example, as shown in the configuration of FIG. 3, the first sub connection member 210 and the second sub connection member 220 may be configured in a parallel plate shape configured to be parallel to each other.
[74]
In addition, the first sub-connection member 210 and the second sub-connection member 220 may be configured such that a partial area of ​​each of the first sub-connection member 210 and the second sub-connection member 220 faces each other. . For example, as shown in the configuration of FIG. 3, the first sub-connection member 210 and the second sub-connection member 220 are the first sub-connection member 210 in the vertical direction of the sub-path L2. And a partial area of ​​the second sub connection member 220 may be configured to face each other.
[75]
In particular, the first sub-connection member 210 and the second sub-connection member 220 may be configured to face each other by an area corresponding to the area of ​​the conversion member 300.
[76]
Through this configuration, in the fusing device 1 according to an embodiment of the present invention, the switching member 300 can be easily coupled between the first sub connection member 210 and the second sub connection member 220. There is an advantage to be able to.
[77]
More preferably, the conversion member 300 according to an embodiment of the present invention may include a body portion 310 and an insertion portion 320.
[78]
The main body 310 is coupled to a space between the first main connection member 110 and the second main connection member 120 to provide a space between the first main connection member 110 and the second main connection member 120. It can be configured to connect. For example, as shown in the configuration of Figure 3, the body portion 310, the length corresponding to the separation distance (D1) between the first main connection member 110 and the second main connection member 120 It is formed in a parallel shape having the first main connection member 110 and the second main connection member 120 may be coupled to the space between. In addition, the main body 310 may include an electrically conductive material to electrically connect the first main connection member 110 and the second main connection member 120.
[79]
The insertion part 320 is mounted on the main body 310 and is coupled to the space between the first sub connection member 210 and the second sub connection member 220, so that the first sub connection member 210 and the second It may be configured to connect between the sub connection members 220. For example, as shown in the configuration of FIG. 3, the insertion part 320 may be formed in a cylindrical shape that is vertically coupled to the body part 310. In addition, the insertion part 320 may include an electrically conductive material to electrically connect the first sub connection member 210 and the second sub connection member 220.
[80]
Preferably, the first sub connection member 210 and the second sub connection member 220 according to an embodiment of the present invention, as shown in the configuration of Figure 3, the vertical direction of the sub path (L2) It may be provided to be spaced apart from each other by a predetermined distance D2.
[81]
In addition, preferably, the insertion unit 320 may be configured to extend longer in one direction (D2 direction) than the distance D2 between the first sub connection member 210 and the second sub connection member 220 .
[82]
More preferably, the first sub-connection member 210 and the second sub-connection member 220 according to an embodiment of the present invention may have holes H1 and H2, respectively.
[83]
The holes H1 and H2 may be provided on the same line in the vertical direction of the sub-path L2 so that the insertion part 320 may be inserted therethrough. For example, as shown in the configuration of Figure 3, the holes (H1, H2), the diameter corresponding to the length (D3) of one side of the insertion portion 320 so that the insertion portion 320 can be inserted and coupled It can be formed in a circle shape having.
[84]
Referring to FIG. 4, the fusing device 1 according to an embodiment of the present invention may include an insulating member 230.
[85]
The insulating member 230 may be provided between the first sub connection member 210 and the second sub connection member 220. More specifically, the insulating member 230 is provided between the first sub-connection member 210 and the second sub-connection member 220 and between the first sub-connection member 210 and the second sub-connection member 220 Can be combined with
[86]
In addition, the insulating member 230 according to an embodiment of the present invention is formed in a shape having a height equal to the separation distance D2 between the first sub connection member 210 and the second sub connection member 220 Can be. Preferably, as shown in the configuration of FIG. 4, the first sub-connection member 210 and the second sub-connection member 220 may be formed in a shape of a hexahedron having a height equal to the separation distance D2. In addition, the insulating member 230 may have a hollow in the form of an insertion part 320 so that the insertion part 320 can be inserted therein.
[87]
Through this configuration, in the fusing device 1 according to an embodiment of the present invention, the insulating member 230 makes the positions of the first sub-connection member 210 and the second sub-connection member 220 firm. The conversion member 300 may be easily coupled to the sub connection member 200.
[88]
In addition, the insulating member 230 supports between the first sub connection member 210 and the second sub connection member 220, so that the first sub connection member 210 and the second sub connection member 220 ) Can be prevented from contacting. For example, the insulating member 230 may prevent the first sub connection member 210 and/or the second sub connection member 220 from being bent and connected to each other due to an external impact.
[89]
[90]
5 and 6 are perspective views illustrating an operating state of a fusing device according to another embodiment of the present invention. In addition, in the present embodiment, a detailed description of portions to which the description of the previous embodiment may be similarly applied will be omitted, and portions with differences will be mainly described.
[91]
First, referring to FIG. 5, the fusing device 1 according to an embodiment of the present invention may include an operation member 400.
[92]
The operation member 400 moves and contacts one surface of the main body 310 in the vertical direction of the main path L1 and the sub path L2 to detach the main body 310 from the main connection member 100. Can be configured to
[93]
For example, as shown in the configuration of FIG. 5, the operation member 400 may include a first operation member 410 and a second operation member 420.
[94]
The first operation member 410 and the second operation member 420 may be provided at a position spaced apart from the switching member 300 while being coupled to each other in normal times. In addition, the first operation member 410 and the second operation member 420 are separated from each other in an emergency, so that the second operation member 420 may move in the direction of the switching member 300.
[95]
For example, the operation member 400 may be electrically connected to a microcontroller provided in the battery pack to receive an emergency signal from the microcontroller. In addition, when the operation member 400 receives an emergency signal, the first operation member 410 and the second operation member 420 may be separated from each other.
[96]
For example, the microcontroller may transmit an emergency signal to the operation member 400 when a situation in which the main path L1 is to be cut occurs. Thereafter, when the operation member 400 receives the emergency signal, the explosives provided in the first operation member 410 may explode, and the first operation member 410 and the second operation member 420 may be separated.
[97]
5 and 6, the operation member 400 according to an embodiment of the present invention moves in contact with one surface of the main body 310 in the vertical direction of the main path L1 and the sub path L2. It may be configured to detach the main body 310 from the main connection member 100.
[98]
First, in the configuration of FIG. 5, the operation member 400 may be provided on one side of the switching member 300. In this case, the conversion member 300 may be coupled between the first main connection member 100 and the second main connection member 100.
[99]
Subsequently, in the configuration of FIG. 6, the first operation member 410 and the second operation member 420 may be separated from each other. In addition, the second operation member 420 is moved in contact with one surface of the switching member 300 to detach the switching member 300 from the main connection member 100, and the switching member 300 is a sub connection member 200 Can be combined with
[100]
Through such a configuration, the fusing device 1 according to an embodiment of the present invention may disconnect the main path L1 and connect the sub path L2 at the same time.
[101]
[102]
7 is a perspective view showing a fusing device according to another embodiment of the present invention.
[103]
Referring to FIG. 7, the fusing device 1 may further include a guide member 500.
[104]
The guide member 500 may contact the operation member 400, the conversion member 300, and the sub connection member 200. Preferably, the guide member 500 is an insulating material through which no current flows, and may be formed in a plate shape. In addition, the guide member 500 is in contact with the operation member 400, the switching member 300 and the sub connection member 200 in the vertical direction of the main path (L1) and the sub path (L2), the operation member 400 , The conversion member 300 and the sub connection member 200 may be aligned. On the other hand, although the guide member 500 is shown transparently in FIG. 7, this is to show the coupling relationship between the operation member 400, the conversion member 300 and the sub connection member 200, and the guide member 500 Physical properties such as transparency are not particularly limited by the drawings.
[105]
The second operation member 420 and the conversion member 300 may be aligned so as not to be displaced by the guide member 500. In addition, the insertion part 320 and the holes H1 and H2 may be aligned so as not to be misaligned. That is, by further including the guide member 500 in the fusing device 1, the explosives provided in the first operation member 410 explode and the first operation member 410 and the second operation member 420 may be separated. When the insertion part 320 can be more easily inserted into the holes (H1, H2).
[106]
In this case, even if the operation member 400, the switching member 300, and the holes H1 and H2 of the fusing device 1 are not aligned in the vertical direction and are inclined, the second operation member along the guide member 500 The 420 may be accurately moved toward the switching member 300. Furthermore, the insertion part 320 may be accurately inserted into the holes H1 and H2. That is, the fusing device 1 including the guide member 500 may be mounted on the battery pack in a vertical direction, an inclined direction, or a direction perpendicular to the vertical direction, and the main path L1 regardless of the mounted direction Can be disconnected and the sub-path L2 can be connected.
[107]
In addition, the guide member 500 is formed to have a rigidity such that it is not bent even in a general impact, so that even when an external impact is applied to the fusing device 1, the first sub-connection member 210 and the second sub-connection member 220 Can be bent to prevent contact with each other.
[108]
Accordingly, the fusing device 1 has an advantage of being able to more precisely disconnect the main path L1 and connect the sub path L2. In addition, the fusing device 1 has an advantage of preventing unexpected conduction of the sub connection member 200 due to an external impact.
[109]
[110]
8 and 9 are perspective views illustrating an operating state of a fusing device according to an embodiment of the present invention.
[111]
8 and 9, the switching member 300 of the fusing device 1 may further include an insulating part 330 mounted at one end of the insertion part 320. Preferably, the insulating part 330 is formed of an insulating material, and may be mounted on the insertion part 320 in a vertical direction of the main path L1 and the sub path L2. In addition, the insulating part 330 may be configured to connect between the first sub connection member 210 and the second sub connection member 220. In addition, the insulating part 330 has a cylindrical shape such as the insertion part 320 so that it can be inserted into the hole H1 of the first sub connection member 210 and the hole H2 of the second sub connection member 220. Can be formed.
[112]
As shown in FIG. 8, when the first operation member 410 and the second operation member 420 are not separated, the insulating part 330 is 2 It may be inserted into the hole H2 of the sub connection member 220. Preferably, the length of the insulating part 330 may be longer than the distance D4 between the same surface of the first and second sub-connection members 210 and 220.
[113]
Here, the distance D4 between the same surface of the first and second sub connection members 210 and 220 is the first and second sub connection members 210 and 220 shown in FIG. 4. It may be a distance formed longer than the distance D2 between them. For example, as shown in FIG. 8, it may be a distance between the top surfaces of the first sub connection member 210 and the second sub connection member 220.
[114]
Thereafter, when the explosive provided in the first operation member 410 explodes and the first operation member 410 and the second operation member 420 are separated, as shown in FIG. 9, the insertion part 320 It may be inserted into the hole H1 of the first sub connection member 210 and the hole H2 of the second sub connection member 220. That is, when the first operation member 410 and the second operation member 420 are separated, the insulating part 330 may be inserted into the holes H1 and H2 without misalignment of the insertion part 320. , H2) may be previously inserted.
[115]
In addition, when the insertion part 320 is inserted into the holes H1 and H2, the insulating part 330 is mounted on the insertion part 320, but may not contact the holes H1 and H2. Accordingly, the insertion part 320 is accurately inserted into the holes H1 and H2, and the sub-path L2 may be conducted through the insertion part 320 including an electrically conductive material.
[116]
Since the switching member 300 provided with the insulating part 330 is included in the fusing device 1, the connection stability between the insertion part 320 and the sub connection member 200 may be further improved.
[117]
[118]
10 is a perspective view showing a fusing device according to another embodiment of the present invention.
[119]
Referring to FIG. 10, the switching member 300 may be provided with a plurality of insertion portions 320. In addition, the first sub connection member 210 and the second sub connection member 220 may include a plurality of holes H1 and H2 so as to correspond to each of the plurality of insertion parts 320.
[120]
That is, the conversion member 300 may include a plurality of insertion portions 320 mounted on the main body 310. In addition, the first sub-connection member 210 and the second sub-connection member 220 may be configured to each have a plurality of holes H1 and H2 configured to pass through each of the plurality of insertion parts 320. .
[121]
Since the fusing device 1 is provided with a plurality of insertion portions 320 and a plurality of holes H1 and H2, the coupling stability between the conversion member 300 and the sub connection member 200 may be improved. That is, the connection between the plurality of insertion units 320 and the plurality of holes H1 and H2 is further strengthened, so that disconnection of the sub-path L2 due to poor contact or the like can be prevented.
[122]
In addition, when the plurality of insertion units 320 are inserted into the corresponding plurality of holes H1 and H2, an external impact applied to the fusing device 1 may be distributed to each of the insertion units 320. Accordingly, the fusing device 1 provided with the plurality of insertion portions 320 has an advantage of being more robust against external impacts.
[123]
Although not shown in the drawing, a guide member 500 and/or an insulating part 330 may be further provided in the fusing device 1 illustrated in FIG. 10. In this case, the coupling stability of the plurality of holes H1 and H2 corresponding to the insertion part 320 may be further improved.
[124]
11 is a diagram schematically illustrating a configuration in which a fusing device according to another embodiment of the present invention is connected to some components of a battery pack.
[125]
Referring to FIG. 11, the main path L1 may be electrically connected to the positive and negative ends of the cell assembly 10. In addition, the main path L1 may be configured to be energized when the main connection member 100 is connected.
[126]
In addition, the sub-path L2 may have a discharge resistance R and may be electrically connected to the positive and negative ends of the cell assembly 10. That is, only when the conversion member 300 is connected to the sub connection member 200, the sub path L2 may be electrically connected to the cell assembly 10. In this case, the signal device 30 may receive power from the cell assembly 10 and transmit an emergency signal to the external device 50.
[127]
Preferably, the sub-path L2 may be configured to be energized when the connection state of the main connection member 100 is switched to the connection state of the sub connection member 200 by the switching member 300. That is, when the switching member 300 is connected to the sub-connection member 200, the main path L1 is disconnected, and thus the current output from the cell assembly 10 may flow through the sub-path L2. That is, the current output from the cell assembly 10 may flow through the discharge resistor R provided on the sub path L2.
[128]
For example, referring to FIGS. 6 and 11, the explosives provided in the first operation member 410 explode so that the second operation member 420 contacts the body part 310, and the insertion part 320 H1, H2) can be inserted. In this case, the connection relationship between the main connection member 100 is opened, the connection of the main path L1 is disconnected, and the connection relationship between the sub connection member 200 is closed, and the sub path L2 may be connected. Accordingly, the current output from the cell assembly 10 flows through the sub-path L2, and current may be lost while flowing through the discharge resistor R provided on the sub-path L2.
[129]
In the fusing device 1 according to another embodiment of the present invention, when an emergency situation occurs in which the switching member 300 is connected to the sub connection member 200, the connection of the main path L1 is disconnected, and the external device 50 It has the advantage of being able to quickly provide the fact that an emergency situation has occurred by transmitting an emergency signal to the vehicle.
[130]
In addition, when the emergency situation occurs, the fusing device 1 self-discharges the cell assembly 10, thereby quickly removing risk factors and preventing additional accidents in advance.
[131]
Further, the fusing device 1 according to the present invention may be provided in a battery pack. That is, the battery pack according to the present invention may include the fusing device 1 according to the present invention described above. Here, the battery pack may include one or more secondary batteries, the fusing device 1, an electronic product (including a BMS, etc.), a case, and the like.
[132]
Meanwhile, it is obvious to those skilled in the art that terms indicating directions used in the present specification are for convenience of description only, and may vary depending on the location of an object or the location of an observer.
[133]
As described above, although the present invention has been described by limited embodiments and drawings, the present invention is not limited thereto, and the technical idea of ​​the present invention and the following by those of ordinary skill in the art to which the present invention pertains. It goes without saying that various modifications and variations are possible within the equivalent range of the claims to be described.
[134]
[135]
(Explanation of code)
[136]
1: fusing device
[137]
10: cell assembly
[138]
30: signal device
[139]
50: external device
[140]
100: main connection member
[141]
110: first main connecting member
[142]
120: second main connecting member
[143]
200: sub connection member
[144]
201: recess
[145]
210: first sub-connection member
[146]
220: second sub-connection member
[147]
230: insulation member
[148]
300: switching member
[149]
301: protrusion
[150]
310: main body
[151]
320: insertion part
[152]
330: insulation
[153]
400: operating member
[154]
410: first operation member
[155]
420: second operation member
[156]
500: guide member
[157]
L1: main route
[158]
L2: sub path
[159]
H1, H2: Hall
[160]
R: discharge resistance
Claims
[Claim 1]
A main connection member provided on the main path and configured to electrically connect one side and the other side to the main path, respectively; A sub connection member provided on the sub-path and configured to electrically connect one side and the other side to the sub-path, respectively; And a connection relationship between the main connection member and the sub connection member and configured to be movable and coupled from the main connection member in the direction of the sub connection member to change the connection state of the main connection member to the connection state of the sub connection member. Fusing device comprising a switching member configured to be able to convert.
[Claim 2]
The method of claim 1, wherein the main path is electrically connected to the positive and negative ends of the cell assembly, and is configured to be energized when the main connection member is connected, and the sub path has a discharge resistance, and the The fusing device, characterized in that it is electrically connected to the positive and negative ends of the cell assembly, and is configured to energize when a connection relationship is switched to a connection state of the sub connection member.
[Claim 3]
The method of claim 1, wherein the switching member is configured to open a connection relationship between the main connection member to disconnect the main path and close the connection relationship between the sub connection member to connect the sub path. Fusing device.
[Claim 4]
The method of claim 1, wherein the main connection member comprises an electrically conductive material and comprises a first main connection member and a second main connection member provided to be spaced apart a predetermined distance from each other on the same line of the main path. Fusing device.
[Claim 5]
According to claim 4, The main connection member, one side of the first main connection member is electrically connected to one end of the main path, and the other side of the second main connection member is electrically connected to the other end of the main path And the other side of the first main connection member and one side of the second main connection member are configured to be electrically connected to the switching member.
[Claim 6]
The fusing apparatus of claim 4, wherein the sub-connection member comprises a first sub-connection member and a second sub-connection member that are made of an electrically conductive material and are provided to be spaced apart from each other by a predetermined distance.
[Claim 7]
The method of claim 6, wherein the sub-connection member comprises the first sub-connection member and the second sub-connection member by coupling the switching member to a spaced space between the first sub-connection member and the second sub-connection member Fusing device, characterized in that configured to be electrically connected.
[Claim 8]
The method of claim 6, wherein the first sub-connection member and the second sub-connection member are provided to be parallel to each other, and a partial area of ​​each of the first sub-connection member and the second sub-connection member is configured to face each other. Fusing device, characterized in that.
[Claim 9]
The body part of claim 8, wherein the switching member is coupled to a space between the first main connection member and the second main connection member to connect the first main connection member and the second main connection member. And an insertion portion mounted on the main body and coupled to a space between the first sub-connection member and the second sub-connection member to connect between the first sub-connection member and the second sub-connection member. Fusing device.
[Claim 10]
The method of claim 9, wherein the first sub-connection member and the second sub-connection member are provided on the same line in a vertical direction of the sub-path and are configured to each have a hole configured to be inserted through the insertion part. Fusing device.
[Claim 11]
The fusing apparatus according to claim 10, further comprising an operation member configured to move and contact one surface of the body part in a vertical direction of the main path and the sub path to detach the body part from the main connection member.
[Claim 12]
The method of claim 11, further comprising a guide member configured to be in contact with the operation member, the switching member and the sub connection member in the vertical direction to align the operation member, the switching member and the sub connection member. Fusing device, characterized in that.
[Claim 13]
The method of claim 9, wherein the switching member is formed of an insulating material, and is mounted on the insertion part in a vertical direction of the main path and the sub path, and between the first sub connection member and the second sub connection member. Fusing device, characterized in that it further comprises an insulation configured to connect.
[Claim 14]
The method of claim 10, wherein the switching member includes a plurality of insertion portions mounted on the main body, and the first sub-connection member and the second sub-connection member are inserted through each of the plurality of insertion portions. A fusing device, characterized in that configured to have a plurality of configured holes, respectively.
[Claim 15]
A battery pack comprising the fusing device according to any one of claims 1 to 14.