Battery module end plate and battery module

Abstract

The utility model relates to a battery module end plate and a battery module, which belong to the field of batteries and comprise a plastic end plate main body, a first plane and a second plane are respectively formed on two opposite sides of the periphery of the plastic end plate main body; an output electrode connecting part is arranged corresponding to the first plane and is used for realizing electric connection with a battery module; at least two limiting assemblies are arranged on the second plane and are used for limiting a packing belt wound on the second plane; each limiting assembly comprises two positioning protrusions arranged at intervals in the longitudinal direction, and a channel allowing a packing belt to penetrate through is formed between the two positioning protrusions, so that the packing belt can be embedded into the channel between the two positioning protrusions. The battery module end plate provided by the utility model is made of customized plastic and has relatively high corrosion resistance and oxidation resistance, so that the stability of the battery module is improved, the service life of the battery module is prolonged, and good insulating property can be provided by using a plastic material.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field, concretely is a kind of battery module end plate and battery module. BACKGROUND

[0002] Battery module is to combine multiple battery monomers together to form a whole module, for storing and releasing electric energy. It has wide application in electric vehicles, energy storage systems and renewable energy fields. Traditional battery module is usually composed of metal end plate and battery monomer, wherein the metal end plate is used to support and fix the battery monomer, and realize the electrical connection between battery monomers.

[0003] However, there are some problems in traditional metal end plate. Traditional metal end plate is usually heavy, which increases the overall load of battery module, reduces the energy efficiency of system, and the processing and installation process of metal end plate is relatively complex, which needs multiple processes, increases production cost and cycle, and metal end plate is easily corroded and oxidized in environment, which reduces the life and stability of battery module. Metal end plate is made of conductive material, which needs additional insulation spraying and other anti-electricity measures, which increases process and production cost. Therefore, the present application provides a battery module end plate and battery module to solve the above technical problems. SUMMARY

[0004] In view of one or more of the above defects or improvement needs of the prior art, the utility model provides a battery module end plate and battery module, which has better weight, process and corrosion resistance, and can improve the performance and life of battery module.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a battery module end plate, comprising a plastic end plate main body;

[0006] First plane and second plane are formed on the opposite sides of the outer periphery of the plastic end plate main body; output pole connecting part is arranged corresponding to the first plane, for realizing electrical connection with battery module;

[0007] At least two limiting components are arranged on the second plane, for limiting the packing belt wound on the second plane;

[0008] Each group of limiting components comprises two positioning protrusions arranged along the longitudinal direction, and a channel is formed between the two positioning protrusions for the packing belt to pass through, so that the packing belt can be embedded into the channel between the two positioning protrusions.

[0009] As a further improvement of the utility model, the limiting components are at least two, and the at least two limiting components are arranged along the longitudinal direction, and two channels are formed between the two groups of limiting components for the packing belt to pass through.

[0010] As a further improvement of the utility model, the end plate positioning structure is arranged on the plastic end plate body.

[0011] As a further improvement of the utility model, the end plate positioning structure is a steel sleeve integrated in the plastic end plate body in the longitudinal direction and located on the opposite sides of the second plane in the transverse direction.

[0012] As a further improvement of the utility model, the plastic end plate body is arc-shaped at two corners in the transverse direction.

[0013] As a further improvement of the utility model, the output pole connecting part is arranged at one end of the plastic end plate body in the longitudinal direction.

[0014] As a further improvement of the utility model, a plurality of reinforcing ribs arranged in the transverse and longitudinal directions are arranged on the first plane, and the vertical height of the reinforcing rib is lower than the vertical height of the positioning protrusion.

[0015] As a further improvement of the utility model, a plurality of lifting holes are arranged at the connection between the reinforcing rib arranged in the transverse direction and the reinforcing rib arranged in the vertical direction, and the vertical height of the lifting hole is higher than the vertical height of the positioning protrusion.

[0016] On this basis, the utility model also provides a battery module group.

[0017] The utility model also provides a battery module group.

[0018] The utility model also provides a battery module group.

[0019] Overall, the above technical scheme conceived by the utility model has the beneficial effects compared with the prior art, including:

[0020] 1. The battery module end plate in the preferred embodiment of the utility model is made of plastic material, which reduces the weight while meeting the strength requirements under working conditions, and the battery module end plate is integrally formed with the aluminum row terminal, the aluminum row terminal is connected with the traditional output pole busbar, which can effectively reduce the assembly process, improve the production efficiency, and improve the stability and service life of the battery module.

[0021] 2、The battery module end plate and the battery module in the utility model preferred embodiment, whole simple structure, convenient operation, not only can reduce weight, thereby reduce the overall load of battery module, and integrated, thereby improve production efficiency, at the same time, the battery module end plate uses custom plastic, has higher corrosion resistance and oxidation resistance, can also provide good insulation performance, has better use value and application prospect. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 It is whole three-dimensional structure schematic diagram of battery module end plate in the utility model preferred embodiment;

[0023] Fig. 2 It is bottom structure schematic diagram of battery module end plate in the utility model preferred embodiment;

[0024] Fig. 3 It is structure schematic diagram of battery module end plate and battery module in the utility model preferred embodiment.

[0025] In all drawings, same reference signs represent same technical features, specifically: 1, plastic end plate main body;2, first plane;3, second plane;4, output pole connecting portion;5, end plate positioning structure;6, steel sleeve;7, reinforcing rib;8, hoisting hole;9, positioning protrusion;10, battery module;11, packing belt;12, liquid cooling base. DETAILED DESCRIPTION

[0026] The technical scheme in the utility model embodiment will be clearly and completely described below in conjunction with the drawings in the utility model embodiment, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] In the embodiment, a battery module end plate is given, which can optionally but not limited to include: a plastic end plate main body 1; Figs. 1-3

[0028] The first plane 2 and the second plane 3 are respectively formed on the opposite sides of the outer periphery of the plastic end plate main body 1;The output pole connecting portion 4 is arranged corresponding to the first plane 2, which is used for realizing electrical connection with the battery module;

[0029] At least two limiting assemblies are arranged on the second plane 3, which are used for limiting the packing belt 11 wound on the second plane 3;

[0030] ​Each set of limiting assembly includes two positioning protrusions 9 arranged longitudinally spaced, and a channel is formed between the two positioning protrusions 9, which can be passed through by the packing belt 11, so that the packing belt 11 can be embedded into the channel between the two positioning protrusions 9.

[0031] In the embodiment, the battery module end plate and the battery module are provided, the limiting assembly is used, so that when the packing belt 11 is used for fixing the battery module end plate and the battery module 10, the displacement of the packing belt 11 can be avoided, and meanwhile, the battery module 10 is electrically connected through the output pole connecting part 4, so that the battery module 10 can be normally powered on and used.

[0032] Further, the limiting assembly is at least two, and the at least two limiting assemblies are arranged longitudinally spaced, and two sets of limiting assemblies form two channels which can be passed through by the packing belt 11.

[0033] In the embodiment, when the packing belt 11 is used for limiting and fixing the battery module between the two battery module end plates and the two battery module end plates, the packing belt 11 is clamped in the channels formed by the two sets of limiting assemblies, so that when the packing belt 11 is used for limiting and fixing the battery module end plate and the battery module, displacement and the like do not occur, and the limiting and fixing effect of the packing belt 11 is improved.

[0034] Further, the end plate positioning structure 5 is arranged on the plastic end plate body 1.

[0035] Further, the end plate positioning structure 5 is a steel sleeve 6 which is integrated and injection molded in the plastic end plate body 1 along the longitudinal direction and is located on the opposite sides of the second plane 3 in the transverse direction.

[0036] In the embodiment, the bolt is passed through the end plate positioning structure 5 or the steel sleeve 6, so that the battery module end plate is fixedly installed on the liquid cooling base 12, so that the stability of the battery module end plate during use is ensured, and in the actual use process, when the end plate positioning structure 5 can meet the strength of the bolt for fixing the battery module end plate, the steel sleeve 6 does not need to be arranged in the end plate positioning structure 5, and when the end plate positioning structure 5 cannot meet the strength of the bolt for fixing the battery module end plate, the steel sleeve 6 can be arranged in the end plate positioning structure 5, so that the fixing effect of the battery module end plate is ensured.

[0037] Further, the two corners of the plastic end plate body 1 in the transverse direction are arranged in an arc shape, so that when the packing belt 11 is used for packing and fixing the battery module end plate and the battery module 10, the packing belt 11 can avoid causing abrasion to the outer side of the plastic end plate body 1, and the service life of the battery module end plate can be improved.

[0038] Further, the output pole connecting part 4 is arranged at one end of the plastic end plate body 1 in the longitudinal direction, and the aluminum row terminal is arranged at the inner side of the output pole connecting part 4, and is used for electrically connecting the battery module 10.

[0039] Further, a plurality of reinforcing ribs 7 arranged in the transverse direction and the longitudinal direction are arranged on the first plane 2, and the vertical height of the reinforcing rib 7 is lower than the vertical height of the positioning protrusion 9.

[0040] Further, a plurality of hoisting holes 8 are arranged at the connection position of the reinforcing rib 7 arranged in the transverse direction and the reinforcing rib 7 arranged in the vertical direction, the vertical height of the hoisting hole 8 is higher than the vertical height of the positioning protrusion 9, and the longitudinal position of the hoisting hole 8 and the position of the positioning protrusion 9 are staggered with each other, so that the use of the hoisting hole 8 can be avoided by the packing belt 11.

[0041] In this embodiment, the plurality of reinforcing ribs 7 arranged in the transverse direction and the longitudinal direction can improve the overall strength of the plastic end plate body 1, and can bear the load from the packing belt 11, and the hoisting hole 8 can be used for hoisting the battery module, thereby improving the convenience of the battery module during installation.

[0042] On this basis, the utility model also provides a battery module which comprises the battery module end plate in the preferred embodiment.

[0043] Further comprising a liquid cooling base 12, the two battery module end plates are arranged on the opposite sides of the top of the liquid cooling base 12 in the longitudinal direction, and the battery module 10 is arranged between the two battery module end plates, the battery module 10 is electrically connected with the output pole connecting part 4 on the two battery module end plates, and the bottom of the battery module 10 is assembled on the liquid cooling base 12.

[0044] Further comprising a packing belt 11, the packing belt 11 is wound to the outer periphery of the two battery module end plates and is attached to the surface of the battery module 10.

[0045] In this embodiment, a plurality of preferred embodiments of the battery module are provided, the two battery module end plates are fixed on the two sides of the battery module 10 by the packing belt 11, and then the two battery module end plates are fixedly installed on the liquid cooling base 12, so that the stability of the battery module 10 during use is improved.

[0046] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0047] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. A battery module end plate, characterized by, It comprises a plastic end plate body (1); A first plane (2) and a second plane (3) are respectively formed on the opposite sides of the outer periphery of the plastic end plate body (1); an output pole connecting part (4) is arranged corresponding to the first plane (2) for electrical connection with a battery module; At least two limiting assemblies are arranged on the second plane (3) for limiting the packing belt (11) wound on the second plane (3); Each group of limiting assemblies comprises two positioning protrusions (9) arranged longitudinally at intervals, and a channel is formed between the two positioning protrusions (9) for the packing belt (11) to pass through, so that the packing belt (11) can be embedded into the channel between the two positioning protrusions (9).

2. The battery module end plate of claim 1, wherein, The limiting assemblies are at least two, and the at least two limiting assemblies are arranged longitudinally at intervals, and two groups of limiting assemblies form two channels for the packing belt (11) to pass through.

3. The battery module end plate of claim 2, wherein, An end plate positioning structure (5) is arranged on the plastic end plate body (1).

4. The battery module end plate of claim 3, wherein, The end plate positioning structure (5) is a steel sleeve (6) which is integrated and injection molded in the plastic end plate body (1) in the longitudinal direction and located on the opposite sides of the second plane (3) in the transverse direction.

5. The battery module end plate of claim 4, wherein, The plastic end plate body (1) is arranged in an arc shape at two corners in the transverse direction.

6. The battery module end plate of claim 5, wherein, The output pole connecting part (4) is arranged at one end of the plastic end plate body (1) in the longitudinal direction.

7. The battery module end plate of claim 6, wherein, A plurality of reinforcing ribs (7) are arranged on the first plane (2) in the transverse and longitudinal directions, and the vertical height of the reinforcing rib (7) is lower than that of the positioning protrusion (9).

8. The battery module end plate of claim 7, wherein, A plurality of lifting holes (8) are arranged at the connection of the reinforcing rib (7) arranged in the transverse direction and the reinforcing rib (7) arranged in the vertical direction, and the vertical height of the lifting hole (8) is higher than that of the positioning protrusion (9).

9. A battery module, characterized by It comprises two battery module end plates according to any one of claims 1-8; It further comprises a liquid cooling base (12), and the two battery module end plates are arranged on the opposite sides of the top of the liquid cooling base (12) in the longitudinal direction, and a battery module (10) is further arranged between the two battery module end plates, the battery module (10) is electrically connected with the output pole connecting part (4) on the two battery module end plates respectively, and the bottom of the battery module (10) is assembled on the liquid cooling base (12); It further comprises a packing belt (11), and the packing belt (11) is wound around the outer periphery of the two battery module end plates and adheres to the surface of the battery module (10).

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