This application claims the benefit of priority based on the Korea Patent Application No. 10-2017-0081732 submitted to the Korea Intellectual Property Office on June 28 2017, and all information disclosed in the literature of the Korea patent application is included as part of the disclosure do.
[2]
The invention, more specifically, the battery management system and a contactor for connection between the by connecting the multiple, multiple positive / negative terminal via a plurality positive / negative terminal of which is provided on each relates to off-prevention circuit of the contactor even if any one of the connection is a short or open, to a different one of the positive / negative-off of the contactor can be maintained over the connection on the power supply to be supplied to the contactor from the protection circuit of the battery management system of the terminal.
BACKGROUND
[3]
Recently, without the use of fossil energy depletion and environmental pollution caused by the use of fossil energy in fossil fuels is increasing interest in using electricity to drive the battery products.
[4]
Accordingly, in recent years, pollution, electric cars to solve the energy problem: it is made also actively research and development for (Electric vehicle EV) and hybrid cars.
[5]
Here, the electric vehicle (Electric vehicle: EV) field may be mainly used as a power source of a battery car driven by power obtained by driving the AC or DC motor, classified into a dedicated battery electric vehicles and hybrid electric vehicles.
[6]
At this time, in the case of battery-only electric vehicle, by driving the motor using only the power of the battery, most of the battery-only electric vehicle has used a high-power secondary batteries and large-capacity secondary battery, and this, in recent years around the related secondary battery components or research on the device is also variously made.
[7]
For example, recently, a battery pack and controlling the charging and discharging of the battery pack (Battery management system) BMS to monitor each battery state and battery pack made of a battery pack by connecting a plurality of battery cells in series and in parallel contactors and connecting loads such as inverters, there is ongoing research on a variety of components or devices.
[8]
Among them, the contact receiving emitter connected to the battery pack and the load, and a switch for controlling the supply if the power supplied from the battery pack to the load, mainly supplied with a voltage through (Battery management system) BMS in the coil provided in the contactor when generating the magnetic field, on the basis of this it is adapted to connect the battery pack and the load.
[9]
On the other hand, it is connected through these BMS (Battery management system), and contacts emitter each one of the positive electrode terminal and a negative terminal, which is, the power supply be at least only either on one of the positive electrode terminal and the negative terminal caused to be supplied to the contactor in unison block therefore, there is a problem that only a simple or more of the terminal, the contactor is off unnecessary (off) can be.
[10]
In addition, the positive electrode terminal and the negative terminal of the contactor which is connected to the positive terminal and the negative terminal of the BMS (Battery management system) is by using only one of the connector, even when simply an error occurs in the connector and the contactor is not necessary to off ( there is a problem that can be Off).
[11]
In addition, because of a problem with contactor is to be turned off unnecessarily (Off) as described above, the running electric car which can be stopped by a sudden loss of power that is still of such a sudden vehicle is lead to the vehicle contact accident or overturn It may have had that problem.
Detailed Description of the Invention
SUMMARY
[12]
By an object of the present invention is connected to multiple through multiple positive / negative terminal of which is provided with a battery management system and a contactor for each, even if any one connection of the connection between the plurality of positive / negative terminals short or open, the other through the connection of the positive / negative terminal to provide an off-prevention circuit of the contactor, which can maintain the power supply to be supplied to the contactor from the BMS.
[13]
In addition, the contactor battery management by being connected to the system, even if an error occurs in any one of the connectors, the battery management positive / negative electrode terminals to be connected to the system via another connector with a plurality of positive / negative electrode terminal through a different connector to be provided at the a to provide an off-prevention circuit of the contactor, which can maintain the power supplied from the battery management systems.
[14]
Further, by connecting a plurality of fuses (Fuse) or switch (Switch) is a carpet or off (Off) by each of the over-current to a plurality of positive / negative terminals, due to an external short circuit in the battery management system over-current is provided to the battery management system It is to provide an off-prevention circuit of the contactor, which effectively can block the inlet.
Problem solving means
[15]
Off prevention of the contactor according to an embodiment of the present invention circuit, controls the power supply to the contactor, and connected to a first cathode of the BMS positive electrode terminal and a 2 BMS positive electrode terminal and the ground or power source connected to the positive electrode of the power source first BMS cathode terminal and a 2 BMS battery management system including a negative terminal and, on the connection between the battery pack and the load / off (on / off), and the first contactor anode coupled to the first BMS positive terminal terminal, and a second contactor negative terminal connected to the second contactor positive terminal of the first first contactor cathode connected to the BMS negative terminal terminal and the second BMS negative terminal coupled to the second BMS positive terminal It may include a contactor having.
[16]
In one embodiment, the battery management system, the first and respectively connected to the BMS positive electrode terminal, a 2 BMS positive terminal, the first BMS cathode terminal and a 2 BMS negative terminal, a plurality of fuses and carpet based on the overcurrent ( It may include the Fuse).
[17]
In one embodiment, the battery management system, wherein the 1 BMS positive terminal, and the second is respectively connected to the BMS positive electrode terminal, a 1 BMS negative terminal and the second BMS negative terminal, an on / off on the basis of an overcurrent (On / Off) may include a plurality of switches (switch) it is.
[18]
In one embodiment, the contact emitter, the first contactor positive terminal, the second contactor positive terminal, the first contactor negative terminal and the second contactor is connected to the negative terminal, by generating a magnetic field on the contactor / off (on / off) coil and are respectively formed between the first contactor positive terminal, the second contactor positive terminal, the first contactor negative terminal and the second contactor cathode terminal and said coil, the direction of the current to It may include a diode (diode) for determining.
[19]
In one embodiment, the contact emitter, said first contactor the positive electrode terminal and the first contactor first connector and the second connector including a second contactor positive electrode terminal and the second contactor negative terminal comprising a negative electrode terminal It may contain.
Effects of the Invention
[20]
According to an aspect, a battery management system, and by connecting the multiple through multiple positive / negative terminal of which is equipped with a contactor in each of which one, even if the connection is a short or open of the connection between the plurality of positive / negative electrode terminal , the other of the positive / negative-off of the contactor can be maintained over the connection on the power supply to be supplied to the contactor from the battery management system of the terminal protection circuit is provided.
[21]
Further, according to another aspect of the invention, by being connected to a battery management system with a plurality of positive / negative electrode terminal through a different connector to be provided on the contactor, even if an error occurs in any one of the connectors, the battery through another connector the off-prevention circuit of the contactor, which can maintain the power supplied from the battery management system through a positive / negative terminal are connected to the control system is provided.
[22]
Also, by, according to another aspect of the invention, connected to a plurality of fuses (Fuse) or switch (Switch) is a carpet or off (Off) by each of the over-current to a plurality of positive / negative terminal provided in the battery management system, due to external short circuit is effectively off-prevention circuit of the contactor, which can block an over-current is flowing is provided by the BMS.
Brief Description of the Drawings
[23]
1 is a view schematically showing the construction of an off-prevention circuit of a contactor according to an embodiment of the present invention.
[24]
2 is a view schematically showing a state in which the fuse of an off-prevention circuit of the contactor according to an embodiment of the invention the carpet.
[25]
3 is a view schematically showing the construction of an off-prevention circuit of a contactor according to another embodiment of the present invention.
[26]
4 is a view schematically showing the appearance of another embodiment in the switch-off of the protection circuit of the contactor according to the off (Off) of the present invention.
Mode for the Invention
[27]
Described in detail with reference to the accompanying drawings, the present invention. Here, the detailed description of the repeated description, that may unnecessarily obscure the subject matter of the present invention, well-known functions and configurations incorporated herein will be omitted. Embodiment of the present invention is provided to more completely describe the present invention to those having ordinary skill in the art. Therefore, the shape and size of the elements in the drawings may be exaggerated for more clear explanation.
[28]
In the specification, assuming that any part "includes" a certain component, which is not to exclude other components not specifically described against which means that it is possible to further include other components.
[29]
In addition, the terms "... unit" described in the specification mean units for processing at least one function or operation, which may be implemented as a combination of hardware, software, or hardware and software.
[30]
In addition, throughout the specification, "on / off (On / Off)" may refer to "open / close" the switch (Switch) described in the specification. For example, it is a switch which is off (Off) status, may mean that the switch is opened, closed circuit which the switch is connected.
[31]
[32]
1 is a view schematically showing the construction of an off-prevention circuit 100 of the contactor according to an embodiment of the present invention.
[33]
However, the off protection circuit 100 of the contactor illustrated in Figure 1 is that in accordance with one embodiment, the components not necessarily are to be restricted to the embodiment shown in Figure 1, some components, as needed addition, Note that the change or be deleted.
[34]
Further, the anti-off circuit 100 of the contactor shown in Figure 1. It should be noted that the secondary battery can be applied to any field, if applied in the art.
[35]
Further, in addition to the exemplary off of the contactor according to an embodiment of the invention, protection circuitry 100 is an electric vehicle (Electric vehicle), it is noted that can be applied to a variety of art, the battery is used.
[36]
[37]
First, referring to Figure 1, an off prevention of the contactor according to an embodiment of the present invention, circuit 100 may be configured to include a battery management system 10 and the contactor 20.
[38]
Here, the BMS 10 may serve to control the power supplied from the power supply section (1) that provides power to the contactor 20, as shown in Fig.
[39]
At this time, the battery management system 10 of claim 1 BMS connected to the negative electrode or the ground of the first BMS positive electrode terminal 11, a 2 BMS positive electrode terminal 12 and the power source (1) connected to the positive electrode of the power source (1) a negative electrode terminal 13 and the second BMS may include a negative terminal (14). In addition, the contactor 2 is also provided with a first contactor positive electrode terminal 21, a second contactor positive electrode terminal 22 and the first contactor negative electrode terminal 23 and the second contactor cathode terminal 24 can. However, throughout this specification, the first BMS positive electrode terminal 11, a 2 BMS positive electrode tab 12, the first BMS negative electrode terminal 13, a 2 BMS negative electrode terminal 14, the first contactor positive terminal ( 21), the second contactor positive electrode terminal 22, a first contactor negative electrode terminal 23 and the second contactor negative electrode terminal 24 are each a single node (node) for describing a connection relationship among the components It will be noted not necessarily have to be provided as a separate component that is physically separated.
[40]
Further, even if having a large number of terminals than that as for each of the positive electrode terminal and which is provided with two on each of the negative terminal battery management system 10 and the contactor 20, but describes a, this embodiment describes .
[41]
In addition, the battery management system 10 may be as a component, further includes a battery management system, a central processing unit for controlling a 10 MCU (10`).
[42]
At this time, the flow to the MCU (10`) is a power supply section (1) of claim 1 BMS positive electrode terminal 11, the BMS 2 positive electrode terminal 12, a BMS 1, a negative electrode terminal 13 and the negative electrode terminal 2 BMS 14 from It may serve to control the current.
[43]
For example, formed between the MCU (10`) is the first BMS positive electrode terminal 11, the BMS 2 positive electrode terminal 12, a BMS 1, a negative electrode terminal 13 and the negative electrode terminal 2 BMS 14 and the power source (1) that is, by controlling the on / off (on / off) of the switch (not shown), the first BMS positive electrode terminal 11, a 2 BMS positive electrode terminal 12, the first BMS negative electrode terminal 13 from the power supply section (1) and second it is possible to control the current flowing through the BMS negative terminal (14).
[44]
However, It should be noted here that it is not the role and the MCU (10`) of the MCU (10`) is limited to a method of controlling a current foregoing.
[45]
Further, 1 and 3, the battery management system 10 wherein the first BMS positive electrode terminal 11, a 2 BMS positive electrode terminal 12, the first BMS negative electrode terminal 13 and the 2 BMS cathode of the terminals 14 respectively connected to the plurality of fuses (fuse) (15) or switch (switch), (16) may further include any of them.
[46]
At this time, a plurality of fuses (15) or switch 16, due to an external short circuit can serve to prevent over-current that flows in a battery management system (10).
[47]
Further, when a plurality of fuses (15) or switch 16 that is an over-current is flowing into the battery management system 10 from the power supply section (1), whereby carpet or off (Off), the contactor 20 from the power source (1) as it may serve to prevent over-current that flows.
[48]
More specifically, the plurality of fuses (15) or switch 16 being on its own carpet or off (Off) from the predetermined amount of electric current, but can prevents the over current flows to the battery management system (10), limited to note that it is not.
[49]
For example, the BMS 10 includes a power supply section (1) a plurality of fuses (15) or sensing unit (not shown) and a plurality of fuses (15) or switch 16 for detecting a voltage supplied to the switch 16 from in the case where an overcurrent is detected, to a controller (not shown) for a plurality of fuses (15) or switch 16, a carpet or off (off), in which case, the sensing unit (not shown) and a controller (not shown by using the city) controls the carpet or off (off) of said plurality of fuses (15) or switch 16, which may prevent over-current is flowing into the battery management system 10.
[50]
At this time, the aforementioned detection unit (not shown) and a control unit (not shown) It should be noted that Figure 1 is not to may be included in the MCU (10`) of the battery management system 10 shown in Figure 4, limited to .
[51]
On the other hand, Fig. 2, when the fuse 15 is connected to claim 1 BMS positive terminal (11) of the plurality of fuse 15 by the over-current carpet, the BMS 10 includes a contactor 20 a second contactor positive electrode terminal 22, the second BMS anode connected to terminal 12 and the second contactor contactor through the second BMS negative electrode terminal 14 is connected to the negative electrode terminal 24 (20) there are connections to be maintained.
[52]
Also, referring to Figure 4, when the switch 16 is connected to claim 1 BMS positive terminal (11) of the plurality of switch 16 by the over-current is turned off (Off), the battery management system 10 includes a contactor contactor through a second contactor positive electrode terminal 22, the second second BMS negative electrode terminal 14 is connected to the BMS positive electrode terminal 12 and the second contactor negative electrode terminal 24 connected to the 20 ( 20) and has a connection can be maintained.
[53]
In other words, the off protection circuit 100 of the contactor according to an embodiment of the present invention doedoe the battery management system 100 and the contactor 20 is connected, a 1 BMS positive terminal provided in the battery management system 10 11, No. 2 BMS positive electrode tab 12, the first contactor anode terminal 21 provided in the BMS negative electrode terminal 13 and the 2 BMS cathode terminal 14 and the contactor 20, the 2 contactor positive electrode terminal 22, a first contactor negative electrode terminal 23 and the second contactor whereby multiple connections through the anode terminal 21, and the other an error occurs in the multi any one of connection of the connection of the via one connection it is possible to maintain the connection between the BMS 10 and the contactor 20.
[54]
[55]
Next, the contactor 20 may be, serves to the battery pack 2 and the load 3 on / off a connection between the (On / Off), as shown in Fig.
[56]
For this purpose, the contactor 20 includes a terminal second contactor anode connected to the first contactor positive electrode terminal 21 and the second BMS positive electrode tab 12 connected to the first BMS positive electrode terminal 11 ( 22), the first contactor cathode terminal 23 and the second to a second contactor negative terminal (24 connected to the BMS negative electrode terminal 14) coupled to the first BMS cathode terminal 13 have.
[57]
In addition, as its components, an on / off coil 25 for controlling the (On / Off) of the by receiving the power supplied from the power supply section 1 through the battery management system 10 generates a magnetic field, the contactor 20 may further include, but the, because if the coil 25, the components that are typically included in the contactor 20, and the detailed description will be omitted.
[58]
In addition, the contactor 20 includes a first contactor positive electrode terminal 21, a second contactor positive electrode terminal 22, a first contactor negative electrode terminal 23 and the second contactors respectively connected to the negative terminal 24 a plurality of diodes (diode) which may further include.
[59]
Here, the plurality of diodes (Diode) is between the first BMS positive electrode terminal 11 and the first contactor positive terminal between the second BMS positive terminal 12 of the 21 and the second contactor anode terminal 22 the first is formed between the BMS negative electrode terminal 13 and the first contactor, and between the second BMS of the negative electrode terminal 23 negative electrode terminal 14 and the second contactor negative electrode terminal 24, the direction of the current It can serve to decide.
[60]
In addition, the contactor 20 includes a first contactor positive electrode terminal 21 and the first contactor first connector 27 and second contactor positive electrode terminal 23 and the second contact comprising a negative electrode terminal 22 emitter a second connector 28 including a negative terminal 24 may further include.
[61]
In other words, the first contactor positive terminal 21 of the contactor 20 and the first contactor negative electrode terminal 23 and the second contactor positive electrode terminal 22 and the second contactor negative electrode terminal 24 are different the first connector 27 and second connector 28, the first BMS positive electrode terminal 11 and the first BMS negative electrode terminal 13 and the second BMS anode terminal 12 provided in the battery management system 10 through and the second being connected to the BMS negative electrode terminal 14, the first connector 27 and second connector at least in any one of (28) (e.g., breakage, etc.) to occur, the other of the connector (the through the first connector 27 and second connector 28, any one or more of the non-occurrence) may be connected to the BMS 10 is maintained.
[62]
[63]
Or more, but showing a particular embodiment of the invention described, the technical scope of the present invention, various types of modifications within a range not departing from the spirit of the present invention is not limited to the above-described information, and the accompanying drawings are possible is the art normal and self-evident fact of those persons having knowledge of the deformation of this type, you will see that in the claims of the present invention within the range that does not violate the spirit of the invention.

WE CLAIMS

[Claim 1] Controlling the power supply to the contactor, and a battery management including a first 1 BMS positive electrode terminal and a 2 BMS positive electrode terminal and the ground or 1 BMS cathode terminal and a 2 BMS negative terminal connected to the negative electrode of the power source connected to the positive electrode of the power source system; On / off the connection between the battery pack and the load (On / Off), and wherein the second contactor positive terminal connected to the first contactor positive electrode terminal and the second BMS positive terminal coupled to the first BMS positive terminal the first claim is connected to the BMS negative terminal 1 contactor negative terminal and the second a second contactor comprising a contactor provided with a negative electrode terminal, and the off of the contactor prevent coupled to BMS negative terminal circuit.
[Claim 2]
The method of claim 1, wherein the battery management system, the first BMS positive terminal, and the second is respectively connected to the BMS positive terminal, the first BMS negative terminal and the second BMS negative terminal, a plurality of fuses carpet on the basis of the over-current (Fuse), characterized in that, off of the contactor prevent circuit comprising a.
[Claim 3]
The method of claim 1, wherein the battery management system, the first and respectively connected to the BMS positive electrode terminal, a 2 BMS positive terminal, the first BMS cathode terminal and a 2 BMS negative terminal, and on / off based on the over-current (On / off) a plurality of switches (switch), characterized in that, off of the contactor prevent circuit including that.
[Claim 4]
The method of claim 1, wherein the contact emitter, the first contactor positive terminal, the second contactor positive terminal, the first contactor negative terminal and the second contactor is connected with a negative terminal, the contactor to generate a magnetic field on / off (on / off) of the coil; And the first contactor positive terminal, the second contactor positive terminal, the first contactors are each formed between the anode terminal and a second contactor negative electrode terminal and the coil, including a diode (Diode) for determining the direction of the current characterized in that, off of the contactor protection circuitry.
[Claim 5]
The method of claim 1, wherein the emitter contact, the first contactor and the first positive terminal contactor first connector including a negative terminal; And said second positive terminal contactor and the second contactor negative terminal connector of claim 2, characterized in that, off of the contactor prevent circuit comprising a comprising a.