CN216120606U - End plate for battery module and battery module - Google Patents

Abstract

The utility model discloses an end plate for a battery module and the battery module with the same, wherein the end plate for the battery module comprises: the plate comprises a plate main body and a bracket, wherein the plate main body is provided with a limiting part; the bracket is connected to the plate main body, the bracket is fixed to the plate main body at a relative position, and a gap in the vertical direction is formed between the bracket and the limiting portion to position the binding belt. Through using above-mentioned technical scheme, can simplify battery module structure, improve space utilization.

Description

End plate for battery module and battery module

Technical Field

The utility model relates to the technical field of batteries, in particular to an end plate for a battery module and the battery module with the end plate.

Background

Along with the improvement of the design level of the battery cell, the expansion problem of some battery cells is greatly improved at present, and in the related technology, an aluminum end plate is generally adopted, so that the cost is higher, and the aluminum end plate is large in thickness and large in occupied space.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide an end plate for a battery module, which can simplify the structure of the battery module and improve the space utilization.

Another object of the present invention is to provide a battery module.

An end plate for a battery module according to an embodiment of the present invention includes: the plate comprises a plate main body and a bracket, wherein the plate main body is provided with a limiting part; the bracket is connected to the plate main body, the bracket is fixed to the plate main body at a relative position, and a gap in the vertical direction is formed between the bracket and the limiting portion to position the binding belt.

According to the end plate for the battery module, disclosed by the embodiment of the utility model, the structure of the battery module can be simplified, and the space utilization rate is improved.

In addition, the end plate for a battery module according to the above-described embodiment of the present invention may further have the following additional technical features:

in some embodiments, the limiting portion includes a flange provided at an upper edge and/or a lower edge of the plate main body.

In some embodiments, the upper edge of the plate main body is provided with an upper flange, the lower edge of the plate main body is provided with a lower flange, the upper flange and the lower flange both extend in the left-right direction, and the upper flange is provided with a notch and/or a pole base mounting lug.

In some embodiments, the pole base mounting ears extend first upward and then forward in a direction away from the electric core pack.

In some embodiments, the bracket includes one or more disposed on the plate body or arranged at intervals in a horizontal direction.

In some embodiments, the stent comprises: the supporting part is provided with a hollow structure with an opening facing the plate main body; the mounting portion is connected to the supporting portion and to the plate main body.

In some embodiments, the mounting portion and the support portion are in a "zig-zag" shape.

In some embodiments, the support portion is provided with a positioning hole, a rib is provided at a periphery of the positioning hole, the rib is protruded outside the support portion, and a thread is formed on an inner surface of the positioning hole.

In some embodiments, the plate body is provided with lightening holes.

In some embodiments, the lightening hole includes a plurality of holes spaced in a left-right direction at a gap between the bracket and the stopper portion.

The battery module according to an embodiment of the present invention includes: the battery pack comprises a battery pack body, end plates and a binding belt, wherein the end plates are arranged on the outer sides of the front end and the rear end of the battery pack body; the end plate and the electric core group are tied up by the binding belt, and the binding belt is positioned between the bracket and the limiting part.

According to the battery module provided by the embodiment of the utility model, the structure of the battery module can be simplified, the space utilization rate is improved, the module is favorably lightened, and the module cost is reduced.

Drawings

Fig. 1 is a schematic structural view of a battery module according to some embodiments of the present invention.

Fig. 2 is an enlarged view of circle a in fig. 1.

Fig. 3 is a schematic structural view of a stent according to some embodiments of the present invention.

Reference numerals:

the battery module 100 is provided with a battery case,

the plate comprises an end plate 1, lightening holes 101, a notch 10, a plate main body 11, a limiting part 12, an upper flange 121, a lower flange 122, a bracket 13, a supporting part 131, a mounting part 132, a positioning hole 130, a convex rib 1301, a polar seat mounting lug 14, a through hole 140,

ribbon 2, electric core group 3, roof 4, connecting plate 41, support frame 42, output polar seat 5, module sampling delivery outlet 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

Referring to fig. 1 to 3, an end plate 1 for a battery module 100 according to an embodiment of the present invention includes: the plate comprises a plate main body 11 and a bracket 13, wherein the plate main body 11 is provided with a limiting part 12; the bracket 13 is connected to the plate body 11, and the relative position of the bracket 13 and the plate body 11 is fixed, and a gap along the up-down direction is formed between the bracket 13 and the limiting part 12 to position the binding tape 2. For example, be equipped with spacing portion 12 and support 13 on the end plate 1, along upper and lower direction spaced apart between support 13 and the spacing portion 12 to construct the clearance that extends along the left and right direction, make ribbon 2 can pass from the clearance, in order to fix a position ribbon 2 in upper and lower direction, improve the stability and the convenience of ribbon 2 installation, ribbon 2 can stably fix electric core and end plate 1 from this, and then improve battery module 100's structural stability. In addition, the bracket 13 is connected to the plate body 11, and can play a role in supporting and improving the structural strength of the end plate 1.

According to the end plate 1 for the battery module 100, the limiting part 12 and the support 13 are arranged on the end plate 1, so that the binding belt 2 can be directly positioned on the end plate 1, the joint strength of the end plate 1 is improved, the structure of the battery module 100 is simplified, and the space utilization rate is improved.

Alternatively, the stopper portion 12 includes a flange provided at the upper edge and/or the lower edge of the plate main body 11, and is simple in structure and easy to construct, and can improve practicality. Specifically, the stopper portion 12 may be provided with only a flange provided on the upper edge of the plate main body 11, or may be provided with only a flange provided on the lower edge of the plate main body 11, so as to be suitable for positioning the band 2 at different positions. Alternatively, flanges may be formed on both the upper and lower edges of the plate body 11 to improve the flexibility of the engagement between the end plate 1 and the band 2. In addition, locate the upper limb and the lower limb of board main part 11 with spacing portion 12 and can make when setting up two ribbons 2 simultaneously, the spaced distance between two ribbons 2 is comparatively moderate, does benefit to the fixed effect who improves ribbon 2.

Alternatively, the flanges and the plate body 11 may be integrally formed, so as to facilitate manufacturing, which is advantageous in cost saving.

Alternatively, the position-limiting part 12 may be disposed at other positions on the plate body 11, such as a position-limiting strip or a position-limiting block disposed on the plate body 11 and protruding from the surface of the plate body 11, the position-limiting strip or the position-limiting block cooperating with the bracket 13 to position the binding tape 2.

With reference to fig. 2, optionally, the upper edge of the plate body 11 is provided with an upper flange 121, the lower edge of the plate body is provided with a lower flange 122, both the upper flange 121 and the lower flange 122 extend in the left-right direction to improve the limiting effect, and the upper flange 121 is provided with a notch 10 and/or a pole base mounting lug 14. Particularly, all can pass ribbon 2 in the clearance between last turn-ups 121 and support 13 and between lower turn-ups 122 and support 13 to location ribbon 2, can fix a position two ribbons 2 simultaneously, do benefit to the fixed effect that improves ribbon 2, thereby improve battery module 100's structural stability. Further, the upper flange 121 may be provided with a pole seat mounting lug 14 to be suitable for mounting the output pole seat 5, so that the output pole seat 5 is directly positioned on the end plate 1, thereby simplifying the structure of the battery module 100 and facilitating the reduction of the overall weight of the battery module 100.

Furthermore, the pole socket mounting ear 14 extends forward again along the direction of deviating from the electric core group 3 upwards earlier to install the output pole socket 5 in one side of the electric core group 3, can integrate the mount socket of installing the output pole socket 5 on the end plate 1 from this, play the effect of simplifying the structure, do benefit to spatial arrangement. According to the end plate 1 of the embodiment of the utility model, with reference to fig. 2, the pole base mounting lug 14 is in an "L" shape, the pole base mounting lug 14 includes a connecting portion and a positioning portion, one end of the connecting portion is connected with the upper edge of the end plate 1 and extends upwards, the connecting portion is connected with the positioning portion, and the positioning portion extends in a direction away from the electric core assembly 3 in the horizontal direction. The positioning part is rectangular, and a chamfer is formed at one side of the positioning part far away from the electric core assembly 3 so as to facilitate assembly, a through hole 140 is formed in the middle area of the positioning part, and the through hole 140 is rectangular so as to form an installation space suitable for installing the output electrode base 5.

With reference to fig. 2, a gap 10 is provided between the upper flange 121 and the pole seat mounting lug 14, and the gap 10 can play a role in abdicating and can improve the rationality of arrangement.

Optionally, the bracket 13 includes one or more brackets disposed on the plate body 11 or arranged at intervals in the horizontal direction to improve a spacing effect or a supporting effect. Specifically, two brackets 13 may be provided on the plate body 11 at intervals in the horizontal direction to improve the structural strength and balance of the end plate 1. Preferably, two supports 13 are arranged at the plate main body 11 at intervals along the horizontal direction, so that a good limiting effect can be achieved, and meanwhile, the weight of the end plate 1 is favorably reduced.

With reference to fig. 3, optionally, the support 13 comprises: a supporting portion 131 and a mounting portion 132, the supporting portion 131 is provided with a hollow structure having an opening facing the plate body 11, and the mounting portion 132 is connected to the supporting portion 131 and connected to the plate body 11. That is to say, installation portion 132 is connected with board main part 11, and supporting part 131 links to each other with installation portion 132 and is equipped with the hollow structure of opening towards board main part 11 on the supporting part 131 to make support 13 protrusion in board main part 11 surface, in order to realize spacing effect, and hollow structure does benefit to and alleviates end plate 1 weight, does benefit to the functionality that improves end plate 1, for example is connected with lifting device and hollow structure in order to do benefit to taking out and placing battery module 100 etc.. Specifically, the supporting portion 131 is in a "U" shape, the left and right ends of the open end of the U shape are respectively connected to the mounting portions 132, and the closed end of the U-shaped supporting portion 132 faces the plate body 11, so that a hollow structure is constructed between the plate body 11 and the supporting portion 132.

Optionally, the mounting portion 132 and the supporting portion 131 are in a shape of a "little" to facilitate a simplified structure. In particular, the bracket 13 may be provided in a form extending a distance in the up-down direction, so that the upper edge of the bracket 13 and the upper turned edge 121 are adapted to position the band 2 therebetween; between the lower edge of the bracket 13 and the lower flange 122 is adapted to position the tie 2. A plurality of small brackets 13 may be provided in the middle area of the plate body 11 as needed. In use, the mounting portion 132 may be fixed to the plate body 11 by welding or screwing.

Alternatively, the supporting portion 131 and the mounting portion 132 may be integrally formed to facilitate manufacturing and to facilitate simplification of the structure.

Optionally, be equipped with locating hole 130 on the supporting part 131, locating hole 130 is along being equipped with protruding muscle 1301, and protruding muscle 1301 locates the supporting part 131 outside to structural strength when improving locating hole 130 and other object connections, screw thread has been constructed to locating hole 130 internal surface, in order being suitable for to carry out threaded connection, can be used for the module hoist and mount, also can be used for later stage copper bar, pencil or BMS slabstone to fix, and the function is various, and simple structure is convenient for assemble. Specifically, the positioning holes 130 may facilitate hoisting, wiring, and the like, so as to improve the functionality of the end plate 1, thereby facilitating simplification of the structure of the battery module 100. For example, locating hole 130 can assist hoist and mount module when battery module 100 installs, and the module installation back that finishes, module output utmost point high pressure side bolt hole can be used for fixing copper bar ribbon 2, and the bolt hole of module sampling low pressure side end plate 1 can fixed pencil or installation BMS slave plate.

Optionally, the plate main body 11 is provided with a lightening hole 101, which is beneficial to realizing the light weight of the end plate 1.

Optionally, the lightening hole 101 includes a plurality of lightening holes arranged at intervals in the left-right direction at the gap between the bracket 13 and the limiting part 12, so that the lightening hole 101 can be shielded after the cable tie 2 passes through the gap, that is, after the cable tie 2 is installed, and the appearance is improved. Of course, the lightening holes 101 may be provided at other positions of the plate body 11, for example, the lightening holes may be freely arranged to lighten the weight of the end plate 1.

Optionally, a radius is formed between the turned edge and the plate body 11, so that when the turned edge positions the binding belt 2, surface stress concentration can be achieved, and the radius between the turned edge and the plate body 11 can also protect the binding belt 2, so that the binding belt 2 is prevented from being scratched; and the assembly safety can be improved.

Referring to fig. 1 and 2, a battery module 100 according to an embodiment of the present invention includes: the electric core group 3, the end plate 1 and the binding belt 2, wherein the end plate 1 is arranged at the outer side of the front end and the rear end of the electric core group 3, and the bracket 13 is arranged at one side of the plate main body 11, which is far away from the electric core group 3; the binding band 2 binds the end plate 1 and the electric core group 3, and the binding band 2 is positioned between the bracket 13 and the limiting part 12. Specifically, the binding band 2 surrounds the electric core group 3 and the end plate 1 to play a fixing effect, so that the structural stability of the battery module 100 is improved; the limiting part 12 and the support 13 of the end plate 1 can be respectively determined as two binding belts 2 in the up-down direction, the binding belts 2 can be limited and fixed, the upper binding belt 2 and the lower binding belt 2 are prevented from being separated from each other when vibrating, and the fixing strength is improved.

According to the battery module 100 provided by the embodiment of the utility model, the structure of the battery module 100 can be simplified, the space utilization rate is improved, the module is light in weight, and the module cost is reduced.

With reference to fig. 1 and fig. 2, optionally, the battery module 100 further includes a top plate 4, the top plate 4 covers the electric core assembly 3, a connecting plate 41 extending out of the front side of the top plate 4 is disposed on one side of the top plate 4 close to the electric core assembly 3, a supporting frame 42 is fixedly connected to the connecting plate 41, and the supporting frame 42 is used for providing a support for the output pole socket 5, so as to improve the installation stability of the output pole socket 5. Specifically, the one end of support frame 42 links to each other with connecting plate 41, and support frame 42 extends forward again downwards along the direction of keeping away from connecting plate 41 earlier, forms "L" shape structure that the opening is preceding, is equipped with the circular port on the support frame 42, and the circular port sets up with through-hole 140 relatively from top to bottom to do benefit to support frame 42 and the cooperation installation of utmost point seat installation ear 14 output utmost point seat 5.

During practical application, battery module 100 installs in equipment, and when battery module 100 was applied to the car, whole car was at the in-process of traveling, battery module 100 can lead to output polar seat 5 to rock along with whole car vibration, through installing output polar seat 5 on support frame 42 and polar seat installation ear 14, can improve output polar seat 5's stability, and then guarantees battery working property.

Optionally, the battery module 100 may further include a module sampling output port 6, and the module sampling output port 6 is mounted at the rear edge of the top plate 4 at intervals.

Optionally, end plate 1 can be panel metal end plate 1, and nonmetal material, for example nylon ribbon 2, can be chooseed for use to ribbon 2. Particularly, among the correlation technique, the electric core inflation problem is improved greatly, and some novel electric cores can reach zero inflation even, and the big module design at this moment if still adopt original just ribbon 2 and the scheme of aluminium end plate 1, will produce the design redundancy, and with high costs, and 1 thickness of aluminium end plate is big, and occupation space is big. The battery module 100 of the embodiment of the utility model adopts the sheet metal end plate 1 and the ribbon 2, which is beneficial to reducing the weight and the cost of the module and is beneficial to space arrangement. According to the embodiment of the utility model, through the matching of the end plate 1 and the ribbon 2, the end plate 1 is suitable for positioning the ribbon 2 for fixing the module, the structure of the battery module 100 can be simplified, the cost is favorably reduced, the sheet metal end plate 1 is thin in thickness and small in occupied space, the length and the space of the module are saved, and the volume utilization rate of a battery bag body is improved.

The end plate 1 and the battery module 100 according to some embodiments of the present invention will be described below with reference to the accompanying drawings.

Referring to fig. 1 to 3, a battery module 100 according to an embodiment of the present invention includes: end plate 1, ribbon 2, electric core group 3, roof 4, output polar seat 5 and module sample delivery outlet 6. Specifically, the end plate 1 includes a plate main body 11, a limiting portion 12 and two brackets 13, wherein the limiting portion 12 includes an upper flange 121 and a lower flange 122 which are arranged on the upper edge and the lower edge of the plate main body 11, the brackets 13 are located between the upper flange 121 and the lower flange 122 and on the center line of the transverse line of the plate main body 11, and the two brackets 13 are arranged on the plate main body 11 at intervals in the left-right direction; further, the bracket 13 is shaped like a Chinese character 'ji' extending in the up-down direction, the bracket 13 includes a supporting portion 131 and an installation portion 132, the installation portion 132 is connected to the plate body 11, the supporting portion 131 is connected to the installation portion 132, the supporting portion 131 is U-shaped, and a positioning hole 130 is formed in the center of the supporting portion 131 for hoisting or threading.

Further, two bands 2 are arranged, the two bands 2 surround the electric core group 3 and the end plate 1 to fix the battery module 100, the two bands 2 are arranged along the up-down direction, one band is positioned at the upper part of the battery module 100, and the other band is positioned at the lower part of the battery module 100 to improve the fixing effect, and specifically, the band 2 positioned at the upper part is positioned at the end plate 1 by the upper turned edge 121 and the bracket 13; the lower band 2 is positioned at the end plate 1 by the turned-down edge 122 and the bracket 13, so that the stability of the band 2 after installation is improved.

The top plate 4 is positioned at the top of the battery module 100, the top plate 4 covers the electric core group 3, and two module sampling output ports 6 are arranged at intervals on the rear side edge of the top plate 4; the inboard at roof 4 front side border is connected with two adjacent connecting plates 41 and support frame 42 respectively, and output pole socket 5 is fixed a position through the backup pad that extends on the pole socket installation ear 14 that sets up on the end turn-ups 121 and the roof 4 to improve the stability of installation.

Specifically, the battery module 100 adopts a structure of two nylon ribbons 2 and two metal plate end plates 1 at the front side and the rear side to complete the restraint and fixation of the module; the middle position of the upper part of the metal plate end plate 1 is provided with two module polar seat mounting lugs 14, the module output polar seat 5 is fixedly mounted, the middle position of the end plate 1 is provided with a support 13 of the end plate 1, a rivet nut column or a welding nut is embedded on the support 13, the binding position of the binding belt 2 on the metal plate end plate 1 is provided with lightening holes 101, the lightening holes 101 can be in a transversely extending oval shape, the metal plate end plate 1 is lightened, and the lower edge part of the metal plate end plate 1 is provided with a lower flanging 122. The nylon cable tie 2 on the upper part of the battery module 100 can be limited and fixed through the module polar seat mounting lug 14 and the bracket 13 on the upper part of the sheet metal end plate 1 or the upper flanging 121 designed on the upper edge of the sheet metal end plate 1, and the nylon cable tie 2 on the lower part of the battery module 100 can be limited and fixed through the lower flanging 122 and the bracket 13 of the sheet metal end plate 1, so that the upper cable tie 2 and the lower cable tie 2 are prevented from being separated during vibration; and be provided with the bolt hole on the 1 support 13 of end plate, can assist the hoist and mount module during the module installation, the module installation back that finishes, module output utmost point high pressure side bolt hole can be used for fixing copper bar ribbon 2, and the bolt hole of module sampling low pressure side end plate 1 can fixed pencil or installation BMS slave plate.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "length", "thickness", "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. An end plate for a battery module, comprising:

the plate comprises a plate main body, wherein a limiting part is arranged on the plate main body;

the support, the leg joint in on the board main part, just the support with board main part relative position is fixed, the support with the clearance along upper and lower direction has between the spacing portion to the location ribbon.

2. The end plate for a battery module according to claim 1, wherein the stopper portion includes a flange provided at an upper edge and/or a lower edge of the plate main body.

3. The end plate for a battery module according to claim 2, wherein an upper flange is provided on the upper edge of the plate main body, a lower flange is provided on the lower edge of the plate main body, the upper flange and the lower flange both extend in the left-right direction, and a notch and/or a pole mounting lug is provided on the upper flange.

4. The end plate for a battery module according to claim 3, wherein the pole base mounting ears extend first upward and then forward in a direction away from the battery pack.

5. The end plate for a battery module according to claim 1, wherein the bracket includes one or more disposed on the plate body at intervals in a horizontal direction.

6. The end plate for a battery module according to claim 1, wherein the bracket comprises:

a support part provided with a hollow structure having an opening facing the plate main body;

an installation part connected with the support part and connected to the plate main body.

7. The end plate for a battery module according to claim 6,

the mounting part and the supporting part are in a shape like a Chinese character 'ji'; and/or

The supporting part is provided with a positioning hole, the periphery of the positioning hole is provided with a convex rib, the convex rib is convexly arranged on the outer side of the supporting part, and the inner surface of the positioning hole is provided with a thread.

8. The end plate for a battery module according to claim 1, wherein the plate main body is provided with lightening holes.

9. The end plate for a battery module according to claim 8, wherein the lightening holes comprise a plurality of holes arranged at intervals in the left-right direction at a gap between the bracket and the stopper portion.

10. A battery module, comprising:

the electric core group;

the end plates are arranged on the outer sides of the front end and the rear end of the electric core group, the end plates are used for the battery module according to any one of claims 1-8, and the bracket is arranged on one side of the plate main body, which is far away from the electric core group;

the binding belt is used for binding the end plates and the electric core group and is positioned between the bracket and the limiting part.

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