Module end plate for battery, battery module and power battery

Abstract

The utility model provides a module end plate for a battery, a battery module and a power battery. The module end plate for the battery comprises a back plate; the plate body is connected with the back plate; the first wire harness mounting structure and the second wire harness mounting structure are both fixedly connected with the back plate, the first wire harness mounting structure, the second wire harness mounting structure and the plate body are all located on the same side of the back plate and are sequentially arranged in the first direction, and the first wire harness mounting structure, the second wire harness mounting structure, the back plate and the plate body form an integral modular structure. According to the technical scheme, the modularized end plate structure is arranged, so that the internal space of the battery pack does not need to be additionally occupied due to the installation of a collection wire harness, and the energy density is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a battery module end plate, a battery module and a power battery. Background Art

[0002] In order to alleviate the mileage anxiety of electric vehicles, the integration efficiency of the battery system also needs to be continuously improved. One aspect of this is to continuously improve the space utilization of the system. In the battery pack, the collection harness is usually arranged between modules and modules, and between modules and the box. This requires a portion of space to be reserved in the whole pack. However, too much space will inevitably affect the energy density of the whole pack, and too little space will affect the assembly of the collection harness. Therefore, the harness arrangement scheme is crucial to the space utilization of the box. The use of a space-saving harness arrangement scheme can effectively improve the energy density of the whole pack.

[0003] At present, in the existing battery modules, an additional mounting structure for fixing the collection harness and other accessories is usually provided on one side of the end plate, which occupies the space inside the battery pack and affects the energy density of the whole pack. Utility Model Content

[0004] The main purpose of the utility model is to provide a battery module end plate, a battery module and a power battery, which can solve the problem in the prior art that an additional mounting structure is required in the battery module, resulting in a large space occupation and thus affecting the energy density.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a module end plate for a battery is provided, comprising: a back plate; a plate body connected to the back plate; a first wire harness mounting structure and a second wire harness mounting structure, both of which are fixedly connected to the back plate, the first wire harness mounting structure, the second wire harness mounting structure and the plate body are all located on the same side of the back plate and are arranged in sequence along a first direction, wherein the first wire harness mounting structure, the second wire harness mounting structure, the back plate and the plate body form an overall modular structure.

[0006] Furthermore, the first wiring harness mounting structure includes: a plurality of first mounting plates, all connected to the back plate, and the plurality of first mounting plates are arranged at intervals along a second direction having an angle with the first direction; each first mounting plate is provided with at least one first mounting hole; a plurality of first clamping members, a first clamping member is correspondingly installed in each first mounting hole, and the first clamping member is used to clamp the wiring harness.

[0007] Furthermore, the battery module end plate also includes a second mounting plate connected to the back plate, the second mounting plate extends along a second direction having an angle with the first direction, and the second wiring harness mounting structure is located on the second mounting plate.

[0008] Furthermore, the second wiring harness mounting structure includes: a plurality of second mounting holes, which are arranged on the second mounting plate at intervals along the second direction; a plurality of second clamping members, with a second clamping member correspondingly mounted in each second mounting hole, and the second clamping members are used to clamp the wiring harness.

[0009] Furthermore, the battery module end plate also includes a base fixing structure for fixing the base, and the base fixing structure is located on the second mounting plate and is spaced apart from the second wiring harness mounting structure.

[0010] Furthermore, the base fixing structure includes a base mounting hole opened on the second mounting plate; and / or, the battery module end plate includes a plurality of base fixing structures arranged at intervals along the second direction, and at least a portion of the second wiring harness mounting structure is provided between two adjacent base fixing structures.

[0011] Furthermore, the second mounting plate includes at least two straight plate sections and a bent plate section for connecting the two straight plate sections, the base fixing structure and the second wiring harness mounting structure are respectively arranged on the corresponding straight plate sections, and the bent plate section is used to separate the two straight plate sections.

[0012] Furthermore, the battery module end plate also includes a plurality of end plate mounting holes spaced apart along the second direction, the end plate mounting holes penetrate the second mounting plate and the plate body along the first direction, and on the second mounting plate, the end plate mounting holes and the second wiring harness mounting structure are spaced apart.

[0013] Further, along the first direction, the second mounting plate and the first wiring harness mounting structure are spaced apart, and the second mounting plate, the first wiring harness mounting structure and the back plate define a storage space for accommodating the components to be installed; and / or, the second mounting plate is integrally or separately arranged with the plate body.

[0014] Furthermore, the battery module end plate further comprises a copper bar mounting structure for mounting the copper bar, and the copper bar mounting structure is located on a side of the plate body away from the back plate.

[0015] Furthermore, the copper busbar mounting structure includes: a plurality of copper busbar mounting holes, which are arranged at intervals along the first direction; a plurality of third clamping members, each copper busbar mounting hole has a corresponding third clamping member installed therein, and the third clamping member is used to clamp the copper busbar.

[0016] Furthermore, the battery module end plate also includes a plurality of side panel positioning members connected to the plate body, and at least one side panel positioning member is provided on each of the opposite sides of the plate body along a second direction having an angle with the first direction; and / or, the battery module end plate also includes a side panel connecting hole opened on the plate body, and at least one side panel connecting hole is provided on each of the opposite sides of the plate body along the second direction having an angle with the first direction.

[0017] According to one aspect of the utility model, a battery module is provided, including a battery cell structure and the above-mentioned battery module end plate, wherein the battery module end plates are provided at opposite ends of the battery cell structure.

[0018] According to one aspect of the utility model, a power battery is provided, comprising a battery case and the above-mentioned battery module arranged in the battery case, wherein a battery module end plate is fixedly connected to the battery case.

[0019] By applying the technical solution of the utility model, the back plate can separate the wiring harness from the battery cell and provide a limit for the wiring harness; a variety of mounting structures are provided on the end plate to realize the arrangement of two wiring harnesses, avoid interference between multiple wiring harnesses and ensure reliable installation, so that installation can be performed according to actual needs; since the first wiring harness mounting structure, the second wiring harness mounting structure, the back plate and the plate body form an overall modular structure, there is no need to occupy additional space outside the module due to the installation of the wiring harness, thereby saving the internal space of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 A schematic structural diagram showing an angle of a battery module end plate according to an embodiment of the utility model;

[0022] Figure 2 Shows Figure 1 A schematic structural diagram of another angle of the battery module end plate;

[0023] Figure 3 Shows Figure 1 A schematic diagram of an installation of a battery module end plate;

[0024] Figure 4 Shows Figure 1 Another installation diagram of a battery module end plate.

[0025] The above drawings include the following reference numerals:

[0026] 1. First wiring harness mounting structure; 2. Second wiring harness mounting structure; 3. Copper busbar mounting hole; 4. Base mounting hole; 5. End plate mounting hole; 6. Side plate positioning member; 7. Side plate connecting hole; 8. Back plate; 111. First clamping member; 112. Second clamping member; 113. Third clamping member; 13. High-voltage base; 14. Copper busbar; 15. Plate body; 16. First mounting plate; 161. First mounting hole; 17. Second mounting plate; 171. Second mounting hole; 175. Straight plate section; 176. Bent plate section. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] See also Figures 1 to 4 As shown, the utility model provides a battery module end plate. The battery module end plate of this embodiment includes: a back plate 8; a plate body 15 connected to the back plate 8; a first wire harness mounting structure 1 and a second wire harness mounting structure 2, both of which are fixedly connected to the back plate 8, the first wire harness mounting structure 1, the second wire harness mounting structure 2 and the plate body 15 are all located on the same side of the back plate 8 and are arranged in sequence along the first direction, wherein the first wire harness mounting structure 1, the second wire harness mounting structure 2, the back plate 8 and the plate body 15 form an integral modular structure.

[0029] Through the above-mentioned arrangement, the back plate 8 can separate the wiring harness from the battery cell and provide a limit for the wiring harness; a variety of mounting structures (for example, the first wiring harness mounting structure 1 and the second wiring harness mounting structure 2) are provided on the end plate, which can realize the arrangement of two wiring harnesses, avoid interference between multiple wiring harnesses and ensure reliable installation, so that installation can be carried out according to actual needs; since the first wiring harness mounting structure 1, the second wiring harness mounting structure 2, the back plate 8 and the plate body 15 form an overall modular structure, the battery module end plate of the present application itself has the function of installing the wiring harness, and there is no need to set an additional structure for installing the wiring harness outside the battery module end plate, that is, there is no need to occupy additional space outside the module due to the installation of the wiring harness, thereby saving the internal space of the battery pack.

[0030] like Figures 1 to 4 As shown, in an embodiment of the utility model, the first wiring harness mounting structure 1 includes: a plurality of first mounting plates 16, all connected to the back plate 8, and the plurality of first mounting plates 16 are arranged at intervals along a second direction having an angle with the first direction; each first mounting plate 16 is provided with at least one first mounting hole 161; a plurality of first clamping members 111, each first mounting hole 161 correspondingly mounted with a first clamping member 111, and the first clamping member 111 is used to clamp the wiring harness.

[0031] Through the above arrangement, the first mounting plate 16 and the back plate 8 are integrally arranged, the first clamping member 111 is fixed in the first mounting hole 161, and the first clamping member 111 can clamp the wire harness, thereby achieving installation and fixation of the wire harness.

[0032] like Figures 1 to 4 As shown, in an embodiment of the utility model, the battery module end plate also includes a second mounting plate 17 connected to the back plate 8, the second mounting plate 17 extends along a second direction having an angle with the first direction, and the second wiring harness mounting structure 2 is located on the second mounting plate 17.

[0033] In the above technical solution, the second mounting plate 17 is integrally arranged with the back plate 8 and the plate body 15. Along the first direction, the first mounting plate 16, the second mounting plate 17 and the plate body 15 are arranged in sequence. The second mounting plate 17, multiple first mounting plates 16 and the back plate 8 define a storage space for accommodating parts to be installed, so as to provide an installation space for the collection harness.

[0034] In another embodiment of the present invention, the second mounting plate 17 and the plate body 15 are provided separately.

[0035] like Figures 1 to 4 As shown, in an embodiment of the utility model, the second wiring harness mounting structure 2 includes: a plurality of second mounting holes 171, which are arranged on the second mounting plate 17 at intervals along the second direction; a plurality of second clamping members 112, and a second clamping member 112 is correspondingly installed in each second mounting hole 171, and the second clamping member 112 is used to clamp the wiring harness.

[0036] In the above technical solution, the second clamping member 112 is fixed in the second mounting hole 171, and the second clamping member 112 can clamp the wire harness, thereby achieving installation and fixation of the wire harness.

[0037] like Figures 1 to 4 As shown, in an embodiment of the present utility model, the battery module end plate further includes a base fixing structure for fixing the base, and the base fixing structure is located on the second mounting plate 17 and is spaced apart from the second wiring harness mounting structure 2 .

[0038] In the above technical solution, the base fixing structure includes a base mounting hole 4 provided on the second mounting plate 17, two grooves are provided on the second mounting plate 17, two base mounting holes 4 are provided at the bottom of each groove, and each high-voltage base 13 is positioned and installed through the two base mounting holes 4. Such a structure is compact.

[0039] like Figures 1 to 4 As shown, in an embodiment of the present utility model, the battery module end plate includes a plurality of base fixing structures arranged at intervals along the second direction, and at least a portion of the second wiring harness installation structure 2 is provided between two adjacent base fixing structures.

[0040] In the above technical solution, the battery module end plate includes two base fixing structures.

[0041] In another embodiment of the present invention, three or more base fixing structures may also be included.

[0042] like Figures 1 to 4As shown, in an embodiment of the utility model, the second mounting plate 17 includes at least two straight plate segments 175 and a bent plate segment 176 for connecting the two straight plate segments 175, the base fixing structure and the second wiring harness mounting structure 2 are respectively arranged on the corresponding straight plate segments 175, and the bent plate segment 176 is used to separate the two straight plate segments 175.

[0043] Through the above arrangement, the bent plate section 176 protrudes from the straight plate section 175. Thus, the base fixing structure and the second wiring harness installation structure 2 can be separated in the second direction by the separation of the bent plate section 176 to avoid mutual interference during installation.

[0044] like Figures 1 to 4 As shown, in an embodiment of the utility model, the battery module end plate also includes a plurality of end plate mounting holes 5 arranged at intervals along the second direction, the end plate mounting holes 5 penetrate the second mounting plate 17 and the plate body 15 along the first direction, and on the second mounting plate 17, the end plate mounting holes 5 and the second wiring harness mounting structure 2 are arranged at intervals.

[0045] In the above technical solution, the battery module end plate can be fixed to the box body of the battery pack by passing the pull rod through the end plate mounting hole 5, thereby achieving fixation of the module end plate.

[0046] like Figures 1 to 4 As shown, in an embodiment of the present utility model, the battery module end plate further includes a copper bar mounting structure for mounting the copper bar 14 , and the copper bar mounting structure is located on a side of the plate body 15 away from the back plate 8 .

[0047] Through the above arrangement, the copper busbar 14 can be fixedly installed through the copper busbar installation structure after being led out from the high-voltage base 13 .

[0048] like Figures 1 to 4 As shown, in an embodiment of the utility model, the copper busbar mounting structure includes: a plurality of copper busbar mounting holes 3, the plurality of copper busbar mounting holes 3 are arranged at intervals along the first direction; a plurality of third clamping members 113, each copper busbar mounting hole 3 has a corresponding third clamping member 113 installed therein, and the third clamping member 113 is used to clamp the copper busbar 14.

[0049] In the above technical solution, the third clamping member 113 is fixed in the copper busbar mounting hole 3 , and the third clamping member 113 can clamp the copper busbar 14 , thereby achieving installation and fixation of the copper busbar 14 .

[0050] In the embodiment of the present utility model, the first clamping member 111, the second clamping member 112 and the third clamping member 113 may be buckles or other types of clamping members to meet various system layout solutions.

[0051] like Figures 1 to 4As shown, in an embodiment of the present invention, the battery module end plate also includes a plurality of side plate positioning members 6 connected to the plate body 15, and at least one side plate positioning member 6 is provided on each of the opposite sides of the plate body 15 along a second direction having an angle with the first direction.

[0052] In the above technical solution, along the second direction, two side panel positioning members 6 are respectively provided on the opposite sides of the plate body 15, and the side panels of the battery module are provided with positioning holes corresponding to the side panel positioning members 6. The side panel positioning members 6 are snap-fitted into the positioning holes to achieve positioning between the module end panels and the side panels for easy installation.

[0053] like Figures 1 to 4 As shown, in an embodiment of the utility model, the battery module end plate also includes a side plate connection hole 7 opened on the plate body 15, and at least one side plate connection hole 7 is opened on each of the opposite sides of the plate body 15 along a second direction having an angle with the first direction.

[0054] In the above technical solution, the side plate connection holes 7 are rivet holes, and the rivets can fix the side plates and the module end plates through the side plate connection holes 7 .

[0055] The utility model also provides a battery module, comprising a battery core structure and the above-mentioned battery module end plate, wherein the battery module end plates are arranged at opposite ends of the battery core structure.

[0056] The battery module of the utility model has all the technical features and all the technical effects of the above-mentioned battery module end plate, which will not be described in detail here.

[0057] The utility model also provides a power battery, comprising a battery box and the above-mentioned battery module arranged in the battery box, wherein the battery module end plate is fixedly connected to the battery box.

[0058] The power battery of the present invention has all the technical features and all the technical effects of the above-mentioned battery module, which will not be described in detail here.

[0059] From the above description, it can be seen that the above-mentioned embodiments of the utility model achieve the following technical effects: the back plate can separate the wiring harness from the battery cell and provide a limit for the wiring harness; a variety of mounting structures are provided on the end plate, which can realize the arrangement of two wiring harnesses, avoid interference between multiple wiring harnesses and ensure reliable installation, so that installation can be carried out according to actual needs; since the first wiring harness mounting structure, the second wiring harness mounting structure, the back plate and the plate body form an overall modular structure, there is no need to occupy additional space outside the module due to the installation of the wiring harness, thereby saving the internal space of the battery pack.

[0060] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0061] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0062] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A battery module end plate, characterized in that: include: Back plate (8); A plate body (15) connected to the back plate (8); The first wire harness installation structure (1) and the second wire harness installation structure (2) are both fixedly connected to the back plate (8); the first wire harness installation structure (1), the second wire harness installation structure (2) and the plate body (15) are all located on the same side of the back plate (8) and are arranged in sequence along a first direction; wherein the first wire harness installation structure (1), the second wire harness installation structure (2), the back plate (8) and the plate body (15) form an integral modular structure.

2. The battery module end plate according to claim 1, characterized in that: The first wiring harness installation structure (1) comprises: A plurality of first mounting plates (16), each connected to the back plate (8), and the plurality of first mounting plates (16) are arranged at intervals along a second direction having an angle with the first direction; each of the first mounting plates (16) is provided with at least one first mounting hole (161); A plurality of first clamping members (111), one first clamping member (111) being correspondingly mounted in each of the first mounting holes (161), and the first clamping members (111) being used for clamping a wiring harness.

3. The battery module end plate according to claim 1, characterized in that: The battery module end plate also includes a second mounting plate (17) connected to the back plate (8), the second mounting plate (17) extending along a second direction having an angle with the first direction, and the second wiring harness mounting structure (2) is located on the second mounting plate (17).

4. The battery module end plate according to claim 3, characterized in that: The second wiring harness installation structure (2) comprises: A plurality of second mounting holes (171) are arranged on the second mounting plate (17) at intervals along the second direction; A plurality of second clamping members (112), one second clamping member (112) being correspondingly mounted in each of the second mounting holes (171), the second clamping members (112) being used for clamping the wiring harness.

5. The battery module end plate according to claim 3, characterized in that: The battery module end plate also includes a base fixing structure for fixing a base, wherein the base fixing structure is located on the second mounting plate (17) and is spaced apart from the second wiring harness mounting structure (2).

6. The battery module end plate according to claim 5, characterized in that: The base fixing structure includes a base mounting hole (4) opened on the second mounting plate (17); and / or the battery module end plate includes a plurality of the base fixing structures arranged at intervals along the second direction, and at least a portion of the second wiring harness mounting structure (2) is provided between two adjacent base fixing structures.

7. The battery module end plate according to claim 5, characterized in that: The second mounting plate (17) comprises at least two straight plate sections (175) and a bent plate section (176) for connecting the two straight plate sections (175); the base fixing structure and the second wiring harness mounting structure (2) are respectively arranged on the corresponding straight plate sections (175); and the bent plate section (176) is used to separate the two straight plate sections (175).

8. The battery module end plate according to claim 3, characterized in that: The battery module end plate further comprises a plurality of end plate mounting holes (5) arranged at intervals along the second direction, wherein the end plate mounting holes (5) penetrate the second mounting plate (17) and the plate body (15) along the first direction, and on the second mounting plate (17), the end plate mounting holes (5) and the second wiring harness mounting structure (2) are arranged at intervals.

9. The battery module end plate according to any one of claims 3 to 8, characterized in that: Along the first direction, the second mounting plate (17) and the first wiring harness mounting structure (1) are arranged at intervals, and the second mounting plate (17), the first wiring harness mounting structure (1) and the back plate (8) define a storage space for accommodating a component to be installed; and / or the second mounting plate (17) and the plate body (15) are arranged integrally or separately.

10. The battery module end plate according to any one of claims 1 to 8, characterized in that: The battery module end plate also includes a copper bar mounting structure for mounting a copper bar (14), and the copper bar mounting structure is located on a side of the plate body (15) away from the back plate (8).

11. The battery module end plate according to claim 10, characterized in that: The copper busbar installation structure comprises: A plurality of copper busbar mounting holes (3), wherein the plurality of copper busbar mounting holes (3) are arranged at intervals along the first direction; A plurality of third clamping members (113), one third clamping member (113) being correspondingly installed in each of the copper busbar mounting holes (3), and the third clamping members (113) being used to clamp the copper busbar (14).

12. The battery module end plate according to any one of claims 1 to 8, characterized in that: The battery module end plate further comprises a plurality of side plate positioning members (6) connected to the plate body (15), wherein at least one side plate positioning member (6) is provided on each of two opposite sides of the plate body (15) along a second direction having an angle with the first direction; and / or, The battery module end plate also includes a side plate connection hole (7) opened on the plate body (15), and at least one side plate connection hole (7) is opened on each of the two opposite sides of the plate body (15) along a second direction having an angle with the first direction.

13. A battery module, characterized in that: It comprises a battery cell structure and a battery module end plate according to any one of claims 1 to 12, wherein the battery module end plates are provided at opposite ends of the battery cell structure.

14. A power battery, characterized in that: It comprises a battery case and the battery module according to claim 13 arranged in the battery case, wherein the battery module end plate is fixedly connected to the battery case.

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