[1]The present invention relates to a car comprising the battery pack and a battery pack comprising such battery module, and these battery modules.
[2]This application claims priority to an application for the Korea Patent Application No. 10-2016-0129118, filed October 06, 2016 letter, all information disclosed in the specification and drawings of that application is hereby incorporated by reference into this application.
BACKGROUND
[3]
High application ease according to the product line, the electric vehicle driven by a secondary battery, an electrical drive source, as well as a portable device having an electrical characteristic, such as high energy density (EV, Electric Vehicle) or a hybrid vehicle (HEV, Hybrid Electric Vehicle) or the like It has been applied universally. These rechargeable batteries are not only the primary advantage of being able to reduce the use of fossil fuels dramatically attracting attention as a new energy source for environmentally friendly and energy efficiency in that the by-products of the use of energy does not occur at all.
[4]
Type of secondary battery is now widely used, there are lithium ion batteries, lithium polymer batteries, nickel cadmium batteries, nickel hydrogen batteries, nickel zinc batteries. Operating voltage of this unit secondary battery cells, that is, the unit battery cell is about 2.5V ~ 4.2V. Thus, more than if the required high output voltage by connecting a plurality of battery cells in series and also configure the battery pack. In addition, the parallel connection of a plurality of battery cells in accordance with the charge-discharge capacity required for the battery pack, and also configure the battery pack. Therefore, the number of battery cells included in the battery pack may be variously set according to the output voltage required, or charge-discharge capacity.
[5]
On the other hand, if you want to configure the battery pack by connecting a plurality of battery cells in series / parallel, and at least one of the battery cells constituting the formed battery module first, and this at least one of the battery pack is added to the other components using a battery module this is a general method to configure.
[6]
Conventional battery modules, cross-laminated, and the front and rear direction of the along the electrodes a plurality of battery cells to be readout is protruded, the pair of bus bars which are mounted on the front and back of the plurality of battery cells connected to the electrode lead and electrically, It is configured to include a pair of sensing the bus connecting the bus bars of a pair of bus bars to the frame and a pair of bus bars to cover the bar.
[7]
These prior art In a battery module, at the assembling step, when a plurality of stacking of battery cells is completed, first, the bus bars of a pair at the front and rear of the battery cell is electrically connected to the electrode lead protruding in the front-rear direction. Then, it mounted able to cover the bus bars of the bus bar are a pair of frame-pair, and finally, is mounted so as to sense bus bar connecting the bus bars of the pair for voltage sensing.
[8]
However, in the conventional battery modules, there are such a pair of bus bars, a pair of bus bars of the frame and sensing the bus bars, respectively, to the problem that it is separated into individual components separately attached, the increase in the assembling process time.
[9]
In addition, in the conventional battery modules, and to the individual assembly according to these individual parts is high oh possibility assembly to be generated according to the assembling direction, a problem that the manufacturing cost increases, depending on the individual mold applied and parts individual package for the individual components provided have.
[10]
As a result, the conventional battery module, there is a problem that the efficiency of the assembly process of the battery module decreases in accordance with this bus bar parts for connection and sensing are separated by separately.
[11]
Therefore, the seeking of ways to provide a car including the pack battery, and this battery pack is required to include the battery modules, these battery modules that can improve the efficiency of the assembly process.
Detailed Description of the Invention
SUMMARY
[12]
Accordingly, it is an object of the present invention is to provide a car including the pack battery, and this battery pack including the battery modules, these battery modules that can improve the efficiency of the assembly process.
Problem solving means
[13]
In order to solve the above object, the present invention provides a battery module, and cross-stacked, a plurality of battery cells in which each electrode lead is extended along the longitudinal direction of the battery module; And the bus bar unit for integrally connecting the electrode leads of the plurality of battery cells; provides a battery module comprising: a.
[14]
The busbar unit includes a first bus bar which is mounted to the front frame of the plurality of battery cells; The first bus bar is coupled with the frame, a first bus that is connected to the electrode lead protruding in front of the plurality of battery cell bar; The second bus bar is mounted to the rear frame of the plurality of battery cells; The second bus bar is coupled with the frame, a second bus bar connected to the electrode lead protruding to a rear of the plurality of battery cells; And the second bus bar and the first bus bar and electrically connected to said first bus bar and the second bus are sensed respectively mounted integrally with the bus bar, the bar; may include.
[15]
Sensing the bus bar can be provided with the plurality of battery cells according to forward and backward directions of bending resiliently elastically bends.
[16]
The elastic bending portion, the fitting of the first frame bar 1, the bus bar frame and said second bus to said plurality of battery cells can be bent in at least two stages.
[17]
The first bus bar frame, and the second bus when either the bar frame is mounted to the plurality of battery cells, wherein the first bus-bar frame, and the second bus, the other of the bar frames front and rear of the plurality of battery cells along the direction may be mounted sliding.
[18]
The battery module, the first bus bar is provided between the frame and the second bus bar frame reinforcing plate for covering the one surface of the plurality of battery cells; may include.
[19]
The first bus bar frame and said second bus bar frame, respectively, the first bus bar or bus bar mounting portion to which the second bus bar is mounted; And said bus bar is bent from the mounting portion, the cell cover portion which covers the one surface of the front and rear direction of the plurality of battery cells; may include.
[20]
The part 1 cell covers of the bus bar frame and a cell cover of the second bus bar frame member may have a shape, which are mutually corresponding in the longitudinal direction of the plurality of battery cells.
[21]
The first bus bar of the cell frame and cell covers cover portion of the second bus bar frame member while being coupled each other when the sliding block may be fitted to cover one side of the plurality of battery cells.
[22]
Sensing the bus bar can be provided with at least one of the flexible circuit boards, flexible flat cables and wires.
[23]
Sensing the bus bar, the thermistor may be mounted integrally.
[24]
The first bus bar frame, wherein the first bus bar, the second bus-bar frame, and the second bus bar and the sense bus bar, may be combined each other as a one-piece structure before being attached to the plurality of battery cells.
[25]
The present invention provides a battery pack, comprising: at least one battery module according to the embodiments described above; And a pack case for packaging the at least one battery module, and provides a battery pack comprising: a.
[26]
In addition, the present invention, at least one battery pack according to the embodiment described above as an automobile, eg, to provide a car characterized in that it comprises a.
Effects of the Invention
[27]
In accordance with various embodiments as described above, it is possible to provide a car including the pack battery, and this battery pack including the battery modules, these battery modules that can improve the efficiency of the assembly process.
Brief Description of the Drawings
[28]
Intended to illustrate the following figures attached to the specification are exemplary of the invention, the components which serve to further understand the spirit of the invention and together with the description of which will be described later invention, the details of this invention is described in such figures be construed as limited only is not.
[29]
1 is a view illustrating a battery module according to an embodiment of the present invention.
[30]
Figure 2 is an exploded perspective view of the battery module of Figure 1;
[31]
Figure 3 is a view illustrating a bus bar unit in the battery module of FIG.
[32]
Figure 4 is an enlarged view of the A portion of the bus bar unit of Fig.
[33]
Figure 5 is an enlarged view of the B portion of the bus bar unit of Fig.
[34]
6 to 11 are views for explaining the assembly of the bus bar unit of the battery module of Figure 1;
[35]
12 is a view illustrating a battery module according to another embodiment of the present invention.
[36]
13 is a view for explaining the assembly of the bus bar unit of the battery module of FIG.
[37]
14 is a view illustrating a battery pack according to an embodiment of the present invention.
Mode for the Invention
[38]
The invention will be more apparent by describing in detail a preferred embodiment of the present invention with reference to the accompanying drawings. Embodiment described herein examples are illustrative as shown for better understanding of the invention, the invention is to be understood that the same may be practiced with different embodiments and various modifications described herein. Further, the appended drawings are not illustrated to scale it can be shown to be the dimensions of some of the components exaggerated for a better understanding of the invention.
[39]
1 is a view illustrating a battery module according to an embodiment of the present invention, Figure 2 is an exploded perspective view of the battery module of Figure 1, Figure 3 is a view for explaining a bus bar unit in the battery module of Figure 2 and, Figure 4 is an enlarged view of a portion a of the bus bar unit of Figure 3, Figure 5 is an enlarged view of the B portion of the bus bar unit of Fig.
[40]
Referring to Figure 1 to Figure 5, the battery module 10 and may include a battery cell 100, the bus bar unit 200 and the reinforcing plate 300.
[41]
The battery cell 100 may be formed of a secondary battery, a pouch type secondary battery. Such the battery cell 100 can be provided with multiple pieces, the plurality of battery cells 100 may be provided are mutually stacked so be connected to each other electrically.
[42]
The plurality of battery cells 100, respectively, may include an electrode assembly, a battery case and the electrode leads 150.
[43]
The electrode assembly may be of a positive electrode plate, negative electrode plate and a separator or the like. Are well known for the electrode assembly, it will now be described in detail here. The battery case may be formed of a laminated sheet containing, as a resin layer and a metal layer for packaging the electrode assembly.
[44]
The electrode lead 150 may be connected electrically with the electrode assembly. Such the electrode lead 150 may be provided as a pair. A portion of the electrode lead of the pair, respectively, may be projected along the front-to-rear direction of the battery module 10.
[45]
The bus bar unit 200 and electrically connected to the electrode leads 150 of the plurality of battery cells 100, it is possible to sense a voltage of the plurality of battery cells (100). Here, the bus bar unit (200) can be can be provided in a single unit as an integral assembly, connected to the electrode leads 150 of the plurality of battery cells 100 in an integrated manner.
[46]
In more learn more about these the bus bar unit (200), the bus bar unit (200), a first bus bar frame 210, a first bus bar 220, a second bus bar frame 230, it is possible to include a second bus bar (240), sensing the bus bar 250 and the thermistor 260.
[47]
The first bus bar frame 210 may be mounted to the front portion of the plurality of battery cells 100 and cover a front portion of the plurality of battery cells (100). The first bus bar frame 210 may include a bus bar mount 212 and the cell cover 216.
[48]
The bus bar mounting portion 212 may be disposed forward of the plurality of battery cells (100). Such a bus bar mounting portion 212 has a first bus bar 220 to be described later can be mounted.
[49]
The cell cover 216 is bent from the bus bar mounting portion 212, one surface of the front-rear direction of the plurality of battery cells 100, the upper surface portion of the detail, the plurality of battery cells (100) It can be covered.
[50]
The first bus bar 220 of the first bus bar frame 210, specifically, the first bus bar is coupled to the bus bar mounting portion 212 of the frame 210, the plurality of battery cells (100 ) it may be electrically connected to the electrode leads (150) projecting forward of the. The first bus bar 220 may be fixed to the bus bars when coupled to mounting portion 212, a heat seal, such as the bus bar mounting portion (212).
[51]
The second bus bar frame 230 can be mounted on the rear portion of the plurality of battery cells 100, and covers the rear portion of the plurality of battery cells (100). This second bus bar frame 230 may include a bus bar mount 232 and the cell cover 236.
[52]
The bus bar mounting portion 232 may be located on the rear portion of the plurality of battery cells (100). Such a bus bar mounting portion 232 has a second bus bar 240 to be described later can be mounted.
[53]
The cell cover portion 236 is bent from the bus bar mounting portion 232, one surface of the front-rear direction of the plurality of battery cells 100, the upper surface portion of the detail, the plurality of battery cells (100) It can be covered.
[54]
The second bus bar 240 and the second bus bar frame 230, specifically, the second bus bar is coupled to the bus bar mounting portion 232 of the frame 230, the plurality of battery cells (100 ) of the electrodes may be electrically connected to the leads (150) projecting to the rear. The second bus bar 220 may be fixed to the bus bars when coupled to mounting portion 232, a heat seal, such as the bus bar mounting portion (232).
[55]
Sensing the bus bar 250, respectively in the first bus bar 220 and the second bus bar electrically connected to the unit 240, wherein the first bus bar 220 and the second bus bar (240) It may be mounted integrally.
[56]
These sensing bus bar 250 may be provided with at least a portion of the flexible circuit boards, flexible flat cables and wires to one, may be arranged above the plurality of battery cells (100).
[57]
Sensing the bus bar 250 may be provided with a resilient bent portion (255).
[58]
The elastic bending portion 255 may be provided to enable bending elastically in accordance with the front-to-rear direction of the sensing bus bar 250 is disposed on one side of the longitudinal direction of the plurality of battery cells (100).
[59]
In accordance with the bending of such bending of the elastic section 255, the length of the sensing bus bar 250 it may be shorter than in the longitudinal direction of the plurality of battery cells (100).
[60]
The elastic bending portion 255, the fitting of the first bus bar frame 210 and the second bus bar frame 230 of the bus bar unit (200) to said plurality of battery cells (100), at least It may be bent in two stages.
[61]
For the elastic bending section 255 closer look at than in relation to the sensed bus bar 250, the sensing bus bar 250 of the plurality prior to being mounted on the upper side of the plurality of battery cells (100) It can be formed longer than the length in the longitudinal direction of the battery cells 100. This is to facilitate the mounting of the first bus bar frame 210 and the second bus bar frame 230 to the plurality of battery cells (100).
[62]
Thereafter, the elastic bending section 255 is the first bus bar frame 210 and the second bus when the bar frame 230 of any one of the mounting is completed, the multiple length of the sensing bus bar 250 one may be bent so as to correspond to the length of the front-rear direction of the battery cells 100. This is to facilitate the mounting of the other mounting is not complete one of the bus bar frame. The more specific description will examine in more detail when describing the assembly of the bus bar unit 200 of the battery module 10 of FIG. 6 to FIG.
[63]
The thermistor 260 as a temperature sensor capable of sensing a temperature of the plurality of battery cells 100, may be mounted integrally with the sensed bus bar 250. Such the thermistor 260 may be coupled integrally to the sensing bus bar 250, respectively, are provided as a pair.
[64]
The reinforcing plate 300 is the first bus bar frame 210 and the second bus is provided between the bar frame 230, one side of the plurality of battery cells 100, specifically, the plurality of battery cells, It may cover the upper surface between the (100) a first bus bar frame 210 and the second bus bar frame 230.
[65]
Such the reinforcing plate 300 may perform a buffer from the plurality of covering the remaining portion not covered in the battery cells 100, and, as well as shock and also supporting the plurality of battery cells (100).
[66]
Or less, more watch out more than for such an assembly process of the bus bar unit 200 of the assembly process of the battery module 10 according to this embodiment.
[67]
6 to 11 are views for explaining the assembly of the bus bar unit of the battery module of Figure 1;
[68]
6 through With reference to Figure 8, when the stack of the battery cells 100 is completed, the bus bar unit (200) may be mounted to a plurality of battery cells 100 in the. Here, the first bus bar frame 210, the first bus bar 220, the second bus bar frame 230, the second bus bar 240, and the sensing of the bus bar unit (200) bus bar 250 and the thermistor 260 are coupled together as a one-piece structure before being attached to the plurality of battery cells 100 may be provided as an integrated module unit. That is, the bus bar unit (200), that said components are separately provided as a module may be manufactured in advance to form an integrated Dictionary.
[69]
Accordingly, in the present embodiment, for the bus bar connections, and the sensing of the battery cells 100 as before, separated into the individual components may be, reduce the assembly process time compared to the structure that is separately mounted.
[70]
In this embodiment, the bus bar unit (200) are, to be provided as an integrated modular possibility of the erroneous assembly is to be generated according to the mounting direction to the individual assembly of the individual parts can be significantly reduced. Further, eopgie requires a separate mold parts and apply individual package according to the individual parts, it is possible to significantly lower the production cost.
[71]
This is described for mounting to the plurality of battery cells 100 of the bus bar unit (200) More specifically, first, the first bus bar frame 210 and the second bus of the bus bar unit (200) any one of the bar frame 230 may be mounted on the front or rear portion of the plurality of battery cells (100).
[72]
By way of example, the first bus bar frame 210 of the bus bar unit (200) can first be mounted to the front portion of the plurality of battery cells (100). At this time, the first bus bar 220 may be connected to the electrode leads (150) projecting forward of said plurality of battery cells (100). On the other hand, wherein the resilient bent portion (255) of the sensing bus bar 250 may be disposed while being kept in a non-bent state, at least in two stages.
[73]
Through the arrangement of the elastic bending section 255, the total length of the sensing bus bar 250 may be provided longer than the longitudinal direction length of the plurality of battery cells (100). Accordingly, it spaced from the second bus bar frame 230 from the rear portion of the plurality of battery cells 100 in the back or the electrode leads 150 and the non-interference state of the plurality of battery cells (100) It may be placed.
[74]
Therefore, it is possible to prevent from the rear of the first bus bar frame 210, the plurality of battery cells 100 during the mounting of which the problem of assembly defect according to such interference of the second bus bar frame 230 occurs have.
[75]
When 9 and 10, the first bus bar frame 210 and the second bus when the bar frame 230 of which one is attached to the plurality of battery cells 100, the first bus bar frame 210 and the other one of the second bus bar frame 230 may be mounted sliding along forward and backward directions of the plurality of battery cells (100).
[76]
If the way of example, the first bus bar frame 210 is mounted to the plurality of battery cells (100) above, a second bus bar frame 230 can be slid along the front of the battery cells 100.
[77]
This second bus bar in accordance with the sliding of the frame 230, the elastic bending section 255 of the sensing bus bar 250 is elastically bending the sensing bus in the longitudinal direction of the battery cells 100 bar (250 ) it can reduce the total length.
[78]
Here, if less, the length of the sensing bus bar 250, the second bus bar frame 230 may be in close contact with the rear portion of the plurality of battery cells 100, the second bus bar 240 is the electrode lead that protrudes to the rear side of the plurality of battery cells 100 may be connected with 150 and electrically.
[79]
The bus bar unit 200 according to such a simple sliding operation of connections for voltage sensing, while the electrode connecting leads (150) of the plurality of battery cells 100 in an integrated manner can also be carried out at once.
[80]
11, when the mounting of the busbar unit 200 is completed, the reinforcement plate 300 is the first bus bar frame 210 and the second bus bar frame of the bus bar unit (200) between 230 may be mounted to be able to cover the upper surface of the plurality of battery cells (100).
[81]
Thus, the battery module 10 according to this embodiment can significantly improve the assembly efficiency of the battery module 10 through the bus bar unit (200) is provided as a one-piece unit module type.
[82]
12 is a view illustrating a battery module according to another embodiment of the present invention, Figure 13 is a view for explaining the assembly of the bus bar unit of the battery module of FIG.
[83]
12 and 13, the battery module 20 may include the plurality of battery cells 100 and the bus bar unit (500).
[84]
The bus bar unit 500 is similar to the previous embodiment, the bus bar unit 200, will be described below with the focus on the differences with the foregoing embodiment, the bus bar unit (200).
[85]
A first bus bar frame 510, the cell cover 516 and the second bus bar frame 530, the cell cover member 536, the plurality of battery cells 100 of the of the bus bar unit (500) It may have a shape, which are mutually corresponding in the longitudinal direction.
[86]
More specifically, the first bus bar wherein the cell wherein the cell cover portion 536 of the cover portion 516 and the second bus bar frame 530 of the frame 510, the first bus bar frame 510 and the second bus bar frame 530 in any one of the sliding mounting upon, combined mutually block one side of the plurality of battery cells 100, specifically, to cover all of the upper surface of the plurality of battery cells (100) have.
[87]
Thus, through the battery module 20, the foregoing embodiment of the first bus bar frame 510 and the second bus bar frame 530, which are mutually block coupling without the reinforcing plate 300 according to this embodiment the upper surface of the plurality of battery cells 100 may all be covered.
[88]
Accordingly, it is more than the production cost of the does not require a separate reinforcing plate, the battery module 20 is reduced as the battery module 20 in the foregoing embodiment according to the present embodiment, the assembly process efficiency also more It can be further increased.
[89]
14 is a view illustrating a battery pack according to an embodiment of the present invention.
[90]
Referring to Figure 14, the battery pack 1, the pack case 50 for packaging the at least one battery module 10 (20) and the at least one battery module 10, 20 according to the foregoing embodiments It may contain.
[91]
As such the battery pack (1) is source of motor fuel, it may be provided in the car. By way of example, the battery pack 1 can be provided in the car for any other method that can be used for an electric vehicle, hybrid vehicle and the other battery pack (1) as a fuel source. In addition, the battery pack (1) can also be provided or the like, such as also any other device or apparatus and equipment power storage device (Energy Storage System) using a secondary battery in addition to the motor vehicle. FIG.
[92]
As such, the bar including the battery pack 1 and the battery pack (1) device or apparatus and equipment described above the battery modules 10, 20 having the same with the vehicle according to the present embodiment, the above-described may implement a battery module 10, and automobiles having a having all of the benefits due to 20, the battery pack 1, and this battery pack 1 of the device or apparatus and equipment.
[93]
And later, although shown and described with respect to preferred embodiments of the invention, the invention is not limited to the embodiments of the described, conventional in the art the art without departing from the subject matter of the present invention invention claimed in the claims It is capable of many variations performed by a person having knowledge of course, and this modified embodiment, will be not dwaeseo individually understood from the technical spirit or prospect of the present invention.

Claims

[Claim 1]In the battery module, and cross-laminated, a plurality of battery cells in which each electrode lead is extended along the longitudinal direction of the battery module; And the bus bar unit for integrally connecting the electrode leads of the plurality of battery cells; battery module comprising: a.
[Claim 2]
The method of claim 1, wherein the busbar unit includes a first bus bar which is mounted to the front frame of the plurality of battery cells; The first bus bar is coupled with the frame, a first bus that is connected to the electrode lead protruding in front of the plurality of battery cell bar; The second bus bar is mounted to the rear frame of the plurality of battery cells; The second bus bar is coupled with the frame, a second bus bar connected to the electrode lead protruding to a rear of the plurality of battery cells; And the second bus bar and the first bus bar and electrically connected to said first bus bar and the second bus are sensed respectively mounted integrally with the bus bar, the bar; battery module comprising: a.
[Claim 3]
The method of claim 2, wherein the bus bar is sensed, the battery module, characterized in that the bendable portion having an elastic bending elastically along forward and backward directions of the plurality of battery cells.
[Claim 4]
The method of claim 3, wherein the resilient bent portion of the first bus-bar frame, and the second bus bar mount frame when, the battery module characterized in that the bent in at least two stages of said plurality of battery cells.
[Claim 5]
The method of claim 3, wherein the first bus-bar frame, and the second bus when either the bar frame is mounted to the plurality of battery cells, the other one of the first bus-bar frame, and the second bus bar frame is the the battery module characterized in that the slide mounted along a plurality of front-back direction of the battery cells.
[Claim 6]
The method of claim 5, wherein the first bus bar frame and the second bus bar is provided between the frame and the reinforcing plate which covers the one surface of the plurality of battery cells; battery module comprising: a.
[Claim 7]
The method of claim 5, wherein the first bus-bar frame, and the second bus bar frame, respectively, the first bus bar or bus bar mounting portion to which the second bus bar is mounted; And the busbar is bent from the mounting portion, the cell cover portion which covers the one surface of the front and rear direction of the plurality of battery cells; battery module comprising: a.
[Claim 8]
The method of claim 7 wherein the first bus bar frame of the cell cover part and the second bus, the cell cover of the bar frame member, the battery module characterized in that it has a shape, which are mutually corresponding in the longitudinal direction of the plurality of battery cells.
[Claim 9]
The method of claim 8, wherein the sub-1-cell cover of the bus bar frame and the cell cover of the second bus bar frame member while being coupled each other block when the sliding mounting, characterized in that covering the surface of the plurality of battery cells The battery module.
[Claim 10]
The method of claim 2, wherein the sensing bus bars, the flexible circuit board, a flexible flat cable and the battery modules being provided with at least one of the wires.
[Claim 11]
The method of claim 2, wherein the bus bar is sensed, the battery module, characterized in that the thermistor is mounted in one piece.
[Claim 12]
The method of claim 2, wherein in said first bus bar frame, wherein the first bus bar, the second bus-bar frame, and the second bus bar and the sense bus bar, one-piece structure before being attached to the plurality of battery cells, the battery module characterized in that the mutual coupling.
[Claim 13]
At least one battery module according to claim 1; And a pack case for packaging the at least one battery module, the battery pack comprising: a.
[Claim 14]
At least one battery pack according to claim 13; car comprising a.