Novel integrated battery module end plate structure

Abstract

The utility model relates to the technical field of battery packs, in particular to a novel integrated battery module end plate structure which comprises an end plate body with an end plate cavity groove and two end plate connecting parts symmetrically arranged on two sides of the end plate body, a vertical positioning pin hole and a screw rod serial connection hole are formed in the end plate connecting part; a collection plate installation position is arranged on the outer side face of the end plate body, and the collection plate installation position is used for fixing a collection plate. The end plate structure is simple in structure, good in heat dissipation performance and capable of achieving rapid positioning and stacking of the upper battery module and the lower battery module and external installation of the collecting plate.

Description

Technical Field

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

[0002] At present, new energy vehicles have attracted wide attention from all walks of life due to their excellent environmental performance. The requirements for new energy vehicles are also constantly increasing. As a new energy vehicle, electric vehicles are also developing in the direction of high safety, high energy ratio and light weight. The main factor that determines the mileage of electric vehicles is the power supply battery. Different specifications of power supply batteries can be selected for different models to meet driving requirements.

[0003] The power supply battery for electric vehicles is generally a battery pack composed of multiple battery modules, that is, multiple battery modules are stacked up and down in the same box, and then the battery modules are connected and connected to the outside through a high-voltage box. The battery module includes a shell with mutually symmetrical end plates, and the shell is used to hold a number of battery cells. In traditional technology, integrated slave control and main control board collection is generally used for module data collection, and an additional structure needs to be added to the battery pack to fix the collection board. Since the collection board is installed in the shell, it is not conducive to heat dissipation, and the shell needs to be removed for maintenance.

[0004] In addition, in traditional technology, the connection between multiple battery modules is mostly stacked in a frame structure. When the battery modules are subjected to external impact or vibration, the stacked battery modules may shift, thereby affecting the battery life.

[0005] Therefore, a new technical solution is urgently needed to solve the above technical problems. Utility Model Content

[0006] The purpose of the utility model is to overcome the above-mentioned problems of the prior art and to provide a novel integrated battery module end plate structure, which is used to solve the problems of the traditional technology that require an additional structure to be added inside the battery pack shell to fix the collection plate, resulting in maintenance troubles and poor heat dissipation, and the problem that the end plates of the traditional battery modules cannot achieve stable stacking between the battery modules stacked up and down.

[0007] The above objectives are achieved through the following technical solutions:

[0008] A novel integrated battery module end plate structure comprises an end plate body with an end plate cavity, and two end plate connecting parts symmetrically arranged on both sides of the end plate body;

[0009] The end plate connection portion is provided with a vertical positioning pin hole and a screw rod serial connection hole;

[0010] The outer side surface of the end plate body is provided with a collection board installation position, and the collection board installation position is used to fix the collection board.

[0011] Furthermore, a plurality of rivet nuts are provided on the installation position of the collection plate, and the collection plate is fixed by screwing the screws and the rivet nuts.

[0012] Further, the end plate cavity groove includes a left heat dissipation groove, a middle heat dissipation groove and a right heat dissipation groove which are connected in sequence, and the left heat dissipation groove and the right heat dissipation groove are symmetrically arranged on both sides of the middle heat dissipation groove;

[0013] The outer sides of the left heat dissipation slot and the right heat dissipation slot are respectively connected with the end plate connecting parts.

[0014] Further, a left terminal seat installation groove for installing the terminal seat is formed between the right side edge of the end plate connecting portion located on the left side, the upper port of the left heat dissipation groove, and the left side edge of the middle heat dissipation groove;

[0015] A right terminal seat installation groove for installing the terminal seat is formed between the left side edge of the end plate connecting portion located on the right side, the upper port of the left heat dissipation groove, and the right side edge of the middle heat dissipation groove.

[0016] Furthermore, an upper port of the middle heat dissipation slot is higher than the left heat dissipation slot and the right heat dissipation slot; an upper port of the end plate connecting portion is higher than the middle heat dissipation slot.

[0017] Furthermore, the bottom ports of the left heat dissipation slot, the middle heat dissipation slot and the right heat dissipation slot are flush to form an n-type groove, and a connection between the n-type groove and the end plate connection portion forms an inclined angle.

[0018] Furthermore, a left rib plate and a right rib plate are respectively provided in the left heat dissipation groove and the right heat dissipation groove, and the two sides of the left rib plate are respectively vertically connected to the middle heat dissipation groove and the end plate connecting part on the left side; the two sides of the right rib plate are respectively vertically connected to the middle heat dissipation groove and the end plate connecting part on the right side.

[0019] Furthermore, the left rib plate and the right rib plate are respectively arranged at the central axis positions of the left heat dissipation slot and the right heat dissipation slot.

[0020] Furthermore, a rivet nut socket is provided on the end plate body, which can connect the mounting position of the collection plate with the left heat dissipation slot, the middle heat dissipation slot, or the right heat dissipation slot, and the rivet nut socket is used for plugging in the rivet nut.

[0021] Furthermore, it also includes a protective cover for protecting the collection plate, and the protective cover is provided with a clamping foot. Correspondingly, a clamping groove matching the clamping foot is also opened on the end plate body. Beneficial Effects

[0022] The utility model provides a novel integrated battery module end plate structure, which is provided with an end plate connection part having a positioning pin hole and a screw series hole to realize the rapid positioning and stacking of the upper and lower battery modules; by setting a collection board installation position on the outer wall of the end plate body, the collection board can be installed externally, which is not only easy to dissipate heat for the collection board, but also does not occupy too much space in the battery pack and is easy to maintain. The end plate structure is not only simple in structure and good in heat dissipation, but also can realize the rapid positioning and stacking of the upper and lower battery modules, as well as the external installation of the collection board. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram from a first perspective of a novel integrated battery module end plate structure of the utility model;

[0024] Figure 2 This is a second perspective structural schematic diagram of a novel integrated battery module end plate structure according to the utility model;

[0025] Figure 3 This is a schematic diagram of the connection between a novel integrated battery module end plate structure, a collection plate and a protective cover according to the utility model;

[0026] Figure 4 This is a diagram of a novel integrated battery module end plate structure used in a battery module application as described in the utility model.

[0027] Graphic marking:

[0028] 1-end plate body, 2-end plate connection part, 3-collection board installation position, 4-collection board, 5-protective cover, 6-rivet nut, 7-screw, 8-left terminal seat installation slot, 9-right terminal seat installation slot, 10-n-type groove, 11-left rib plate, 12-right rib plate, 13-rivet nut socket, 14-card foot, 15-card slot, 16-left heat dissipation slot, 17-middle heat dissipation slot, 18-right heat dissipation slot, 19-positioning pin hole, 20-screw series hole, 21-end plate cavity slot, 22-battery module, 23-terminal seat, 24-tilt angle. DETAILED DESCRIPTION

[0029] The utility model is further described in detail below based on the accompanying drawings and embodiments. The described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1 , 2As shown in FIG. 4 , the present solution provides a novel integrated battery module end plate structure, comprising an end plate body 1 with an end plate cavity 21 , and two end plate connecting portions 2 symmetrically arranged on both sides of the end plate body 1 ;

[0031] The end plate connection portion 2 is provided with a vertical positioning pin hole 19 and a screw serial connection hole 20; the positioning pin hole 19 is used for inserting a positioning pin to realize vertical positioning of the battery module 22; the screw serial connection hole 20 is used for allowing a screw to penetrate to realize serial connection of the battery module 22 after being positioned up and down;

[0032] The outer side surface of the end plate body 1 is provided with a collection board installation position 3, and the collection board installation position 3 is used to fix the collection board 4;

[0033] It should be noted that, in this embodiment, the end plate body 1 and the two end plate connecting parts 2 are integrally formed, and can be made of metal aluminum and integrally formed by stamping or casting.

[0034] like Figure 3 As shown, a plurality of rivet nuts 6 are provided on the collection plate installation position 3 , and the collection plate 4 is fixed by screwing the screws 7 to the rivet nuts 6 .

[0035] Specifically, a rivet nut socket 13 is provided on the end plate body 1, which can connect the collection board mounting position 3 with the left heat dissipation groove 16, or the middle heat dissipation groove 17, or the right heat dissipation groove 18, and the rivet nut socket 13 is used for plugging the rivet nut 6.

[0036] like Figure 2 As shown, as an optimization of the end plate cavity 21 in this embodiment, the end plate cavity 21 includes a left heat dissipation groove 16, a middle heat dissipation groove 17 and a right heat dissipation groove 18 which are sequentially connected, and the left heat dissipation groove 16 and the right heat dissipation groove 18 are symmetrically arranged on both sides of the middle heat dissipation groove 17;

[0037] The outer sides of the left heat dissipation slot 16 and the right heat dissipation slot 18 are respectively connected to the end plate connecting portion 2 .

[0038] In addition, if Figure 1 As shown, a left terminal seat installation groove 8 for installing the terminal seat 23 is formed between the right side of the end plate connecting portion 2 located on the left, the upper port of the left heat dissipation groove 16, and the left side of the middle heat dissipation groove 17;

[0039] A right terminal seat installation groove 9 for installing the terminal seat 23 is formed between the left side edge of the end plate connecting portion 2 located on the right side, the upper port of the left heat dissipation groove 16, and the right side edge of the middle heat dissipation groove 17;

[0040] Specifically, this structure can facilitate the installation of the terminal seat 23 at any position, and the terminal seat 23 is used for connecting the internal battery cell with the external wiring.

[0041] As a further optimization of the structure, the upper port of the middle heat dissipation slot 17 is higher than the left heat dissipation slot 16 and the right heat dissipation slot 18; the upper port of the end plate connecting portion 2 is higher than the middle heat dissipation slot 17;

[0042] Specifically, this structure can ensure that the upper port of each heat dissipation slot has a heat dissipation space, which is more conducive to ventilation and heat exchange inside each heat dissipation slot.

[0043] On the other hand, the bottom ports of the left heat dissipation slot 16, the middle heat dissipation slot 17 and the right heat dissipation slot 18 are flush, forming an n-type groove 10, and the connection between the n-type groove 10 and the end plate connecting portion 2 forms an inclined angle 24;

[0044] Specifically, as a specific embodiment of the present scheme, the angle of the inclination angle 24 is 90° to 150°. This structure makes the bottom ends of the two end plate connecting parts 2 become supporting feet, so that the bottom ports of the left heat dissipation groove 16, the middle heat dissipation groove 17 and the right heat dissipation groove 18 have heat dissipation space, which is more conducive to ventilation and heat exchange inside each heat dissipation groove.

[0045] like Figure 2 As shown, in this embodiment, a left rib plate 11 and a right rib plate 12 are respectively provided in the left heat dissipation groove 16 and the right heat dissipation groove 18, and the two sides of the left rib plate 11 are respectively vertically connected to the middle heat dissipation groove 17 and the end plate connecting part 2 on the left side; the two sides of the right rib plate 12 are respectively vertically connected to the middle heat dissipation groove 17 and the end plate connecting part 2 on the right side; specifically, the left rib plate 11 and the right rib plate 12 in this embodiment can further increase the strength of the end plate body 1 while not affecting the circulation of the heat dissipation air.

[0046] The left rib plate 11 and the right rib plate 12 are respectively arranged at the central axis positions of the left heat dissipation slot 16 and the right heat dissipation slot 18 .

[0047] like Figure 3 As shown, this embodiment also includes a protective cover 5 for protecting the collection board 4, and a clamping foot 14 is provided on the protective cover 5. Correspondingly, a clamping groove 15 matching the clamping foot 14 is also provided on the end plate body 1; by buckling the clamping foot 14 with the clamping groove 15, the protective cover 5 can be quickly connected to the collection board mounting position 3.

[0048] The above description is only for illustrating the implementation mode of the present invention and is not intended to limit the present invention. For those skilled in the art, any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel integrated battery module end plate structure, characterized in that: It comprises an end plate body (1) having an end plate cavity (21), and two end plate connecting parts (2) symmetrically arranged on both sides of the end plate body (1); The end plate connection portion (2) is provided with a vertical positioning pin hole (19) and a screw rod serial connection hole (20); A collection plate mounting position (3) is provided on the outer side surface of the end plate body (1), and the collection plate mounting position (3) is used to fix the collection plate (4).

2. A novel integrated battery module end plate structure according to claim 1, characterized in that: A plurality of rivet nuts (6) are provided on the collection plate installation position (3), and the collection plate (4) is fixed by screwing screws (7) and the rivet nuts (6).

3. A novel integrated battery module end plate structure according to claim 2, characterized in that: The end plate cavity (21) includes a left heat dissipation groove (16), a middle heat dissipation groove (17), and a right heat dissipation groove (18) which are connected in sequence, and the left heat dissipation groove (16) and the right heat dissipation groove (18) are symmetrically arranged on both sides of the middle heat dissipation groove (17); The outer sides of the left heat dissipation groove (16) and the right heat dissipation groove (18) are respectively connected to the end plate connection parts (2).

4. A novel integrated battery module end plate structure according to claim 3, characterized in that: A left terminal seat installation groove (8) for installing a terminal seat (23) is formed between the right side edge of the end plate connecting portion (2) located on the left side, the upper port of the left heat dissipation groove (16), and the left side edge of the middle heat dissipation groove (17); A right terminal seat installation groove (9) for installing a terminal seat (23) is formed between the left side edge of the end plate connecting portion (2) located on the right side, the upper port of the left heat dissipation groove (16), and the right side edge of the middle heat dissipation groove (17).

5. A novel integrated battery module end plate structure according to claim 3 or 4, characterized in that: The upper port of the middle heat dissipation slot (17) is higher than the left heat dissipation slot (16) and the right heat dissipation slot (18); and the upper port of the end plate connecting portion (2) is higher than the middle heat dissipation slot (17).

6. A novel integrated battery module end plate structure according to claim 5, characterized in that: The bottom ports of the left heat dissipation groove (16), the middle heat dissipation groove (17) and the right heat dissipation groove (18) are flush, forming an n-type groove (10), and the connection between the n-type groove (10) and the end plate connection part (2) forms an inclined angle (24).

7. A novel integrated battery module end plate structure according to claim 3 or 4, characterized in that: A left rib plate (11) and a right rib plate (12) are respectively provided in the left heat dissipation groove (16) and the right heat dissipation groove (18); two sides of the left rib plate (11) are respectively vertically connected to the middle heat dissipation groove (17) and the end plate connecting portion (2) on the left side; and two sides of the right rib plate (12) are respectively vertically connected to the middle heat dissipation groove (17) and the end plate connecting portion (2) on the right side.

8. A novel integrated battery module end plate structure according to claim 7, characterized in that: The left rib plate (11) and the right rib plate (12) are respectively arranged at the central axis positions of the left heat dissipation groove (16) and the right heat dissipation groove (18).

9. The novel integrated battery module end plate structure according to claim 3, characterized in that: A rivet nut insertion hole (13) is provided on the end plate body (1) and is capable of connecting the collection plate mounting position (3) with the left heat dissipation groove (16), the middle heat dissipation groove (17), or the right heat dissipation groove (18). The rivet nut insertion hole (13) is used for plugging the rivet nut (6).

10. The novel integrated battery module end plate structure according to claim 1, characterized in that: It also comprises a protective cover (5) for protecting the collection plate (4), the protective cover (5) being provided with a clamping foot (14), and correspondingly, a clamping groove (15) matching the clamping foot (14) is also provided on the end plate body (1).

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