Battery module stacking support for battery pack

Abstract

The utility model relates to the technical field of battery packs, in particular to a battery module stacking bracket for a battery pack, which comprises a plurality of battery module supporting plates arranged up and down, a top stacking layer positioned above the battery module supporting plate at the top, and a bottom stacking layer positioned below the battery module supporting plate at the bottom, a middle stacking layer is formed between every two adjacent battery module supporting plates; a plurality of module stacking positions are arranged on the battery module supporting plate, and a screw rod through hole is formed in each module stacking position; correspondingly, the battery module comprises module end plates arranged at the two ends, the two module end plates are connected through symmetrical module side plates, and screw rod serial connection holes allowing the screw rods to penetrate through are formed in the module end plates. The battery module stacking support is simple in structure and capable of stacking the battery modules transversely and longitudinally in order, the stacked battery modules are compact in structure and not prone to displacement, and later disassembly and maintenance are easy.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, and in particular to a battery module stacking bracket for a battery pack. 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. In traditional technology, the connection between multiple battery modules is mostly stacked in a frame structure. When the battery module is subjected to external impact or vibration, it is very easy to cause the displacement between the stacked battery modules, thus affecting the life of the battery pack.

[0004] Therefore, a new technical solution is urgently needed to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned problems of the prior art and provide a battery module stacking bracket for a battery pack, which is used to solve the technical problem that when a plurality of battery modules are stacked using a frame structure, each battery module is very likely to cause displacement between the stacked battery modules up and down or left and right when subjected to external impact or vibration, thereby affecting the life of the battery pack.

[0006] The above objectives are achieved through the following technical solutions:

[0007] A battery module stacking bracket for a battery pack, installed in a battery pack box, comprising a plurality of battery module support plates arranged up and down, the upper portion of the battery module support plate located at the top serving as a top stacking layer, the lower portion of the battery module support plate located at the bottom serving as a bottom stacking layer, and the adjacent battery module support plates forming an intermediate stacking layer;

[0008] The battery module support plate is provided with a plurality of module stacking positions for stacking battery modules, and each of the module stacking positions is provided with a screw through hole for a screw to pass through; correspondingly, the battery module includes module end plates arranged at both ends, the two module end plates are connected by mutually symmetrical module side plates, and the module end plates are provided with screw series holes for the screw to pass through.

[0009] Furthermore, the module stacking positions correspond to the battery modules and are both rectangular.

[0010] Furthermore, there are four screw through holes corresponding to each module stacking position, including a first screw through hole, a second screw through hole, a third screw through hole and a fourth screw through hole which are symmetrical to each other and are respectively arranged at four diagonal corners of the module stacking position.

[0011] Furthermore, a support block capable of supporting the bottom of the module end plate is arranged on the screw through hole.

[0012] Furthermore, mutually symmetrical positioning holes are respectively provided between the first screw through hole and the second screw through hole, and between the third screw through hole and the fourth screw through hole;

[0013] Correspondingly, positioning columns corresponding to the positioning holes are respectively arranged on the two module end plates of the battery module.

[0014] Furthermore, mutually symmetrical positioning grooves are respectively provided between the first screw through hole and the third screw through hole, and between the second screw through hole and the fourth screw through hole, and the positioning grooves correspond to the bottoms of the two module side plates of the battery module.

[0015] Furthermore, two adjacent positioning grooves on two adjacent module stacking positions form a whole.

[0016] Furthermore, a heating film is also provided on the module stacking position.

[0017] Furthermore, the battery module support plate is made of metal.

[0018] Furthermore, the screw rod is an external hexagonal bolt, and a threaded section is provided at the bottom end thereof for screwing with a threaded groove provided on the bottom wall of the battery pack body.

[0019] Beneficial Effects

[0020] The utility model provides a battery module stacking bracket for a battery pack, which adopts a rack structure to stack and install the battery modules in an orderly manner, and can ensure that the battery pack will not shift during transportation or when it is subjected to external impact, thereby ensuring the life of the battery pack. By setting positioning holes and positioning grooves on the module stacking positions, it can further ensure that the battery modules will not shift on the corresponding module stacking positions, and it is convenient for the serial installation of the screws. The battery module stacking bracket is not only simple in structure, and can stack the battery modules in an orderly manner horizontally and vertically, but also has a compact structure after stacking, is not easy to shift, and is easy to disassemble and maintain later. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a battery module stacking bracket for a battery pack according to the utility model;

[0022] Figure 2 It is a structural schematic diagram of a battery module support plate in a battery module stacking bracket for a battery pack according to the utility model;

[0023] Figure 3 This is a structural schematic diagram of a battery module stacking bracket for a battery pack according to the utility model, which is equipped with a heating film;

[0024] Figure 4 It is a structural schematic diagram of a battery module of a battery module stacking bracket for a battery pack according to the utility model;

[0025] Figure 5 This is a schematic diagram of the application of a battery module stacking bracket for a battery pack described in the utility model.

[0026] Graphic marking:

[0027] 1-battery module support plate, 101-module stacking position, 102-screw through hole, 103-positioning hole, 104-positioning groove, 105-first screw through hole, 106-second screw through hole, 107-third screw through hole, 108-fourth screw through hole;

[0028] 2- Top stacking layer;

[0029] 3-Middle stacking layer;

[0030] 4-Bottom stacking layer;

[0031] 5-battery module, 501-module end plate, 502-module side plate, 503-screw connection hole, 504-positioning column;

[0032] 6-screw, 601-thread segment;

[0033] 7- Support block;

[0034] 8- Heating film. DETAILED DESCRIPTION

[0035] 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.

[0036] like Figure 1 and 2As shown, the present invention provides a battery module stacking bracket for a battery pack, which is installed in a battery pack box, and includes a plurality of battery module support plates 1 arranged up and down, wherein the upper portion of the battery module support plate 1 located at the top serves as a top stacking layer 2, and the lower portion of the battery module support plate 1 located at the bottom serves as a bottom stacking layer 4, and an intermediate stacking layer 3 is formed between adjacent battery module support plates 1;

[0037] The battery module support plate 1 is provided with a plurality of module stacking positions 101 for stacking the battery modules 5, and each of the module stacking positions 101 is provided with a screw through hole 102 for the screw 6 to pass through; correspondingly, the battery module 5 includes module end plates 501 provided at both ends, the two module end plates 501 are connected by mutually symmetrical module side plates 502, and the module end plates 501 are provided with screw serial connection holes 503 for the screw 6 to pass through;

[0038] Working principle:

[0039] like Figure 4 and 5 As shown, the screw 6 passes downward from the screw series connection hole 503 on the battery module 5 on the top stacking layer, and successively passes through the screw through hole 102 on the top battery module support plate 1, the screw series connection hole 503 on the battery module 5 on the middle stacking layer 3, the screw through hole 102 on the bottom battery module support plate 1, and the screw series connection hole 503 on the battery module 5 on the bottom stacking layer 2, and then is screwed into the threaded groove on the bottom wall of the battery pack body to achieve longitudinal series connection.

[0040] The battery module support plate 1 is made of metal, preferably a metal with high strength such as a metal steel plate, so as to better support the battery module 5 thereon.

[0041] In this embodiment, the screw rod 6 is an external hexagonal bolt, and a threaded section 601 is provided at the bottom end thereof for screwing into a threaded groove provided on the bottom wall of the battery pack case, thereby achieving stable fixation of the battery modules 5 located on the top stacking layer 2, the middle stacking layer 3 and the bottom stacking layer 4 in the battery pack case.

[0042] In this solution, a stacking bracket for stacking battery modules 5 is formed by multiple battery module support plates 1 and screws 6. The battery modules 5 can be stacked horizontally and vertically on the stacking bracket. Combined with the screw series connection holes 503 on the module end plate 501, the battery modules 5 can be firmly installed without displacement.

[0043] It should be noted that the module stacking positions 101 in this embodiment correspond to the battery modules 5 and are both rectangular; there are four corresponding screw through holes 102 on each of the module stacking positions 101, including a first screw through hole 105, a second screw through hole 106, a third screw through hole 107 and a fourth screw through hole 108 which are symmetrical to each other and are respectively arranged at the four diagonal corners of the module stacking position 101, such as Figure 2 shown.

[0044] A support block 7 is provided on the screw through hole 102 to support the bottom of the module end plate 501; a through hole corresponding to the screw through hole 102 is provided on the support block 7 to allow the screw 6 to pass through. This structure can increase the strength of this part of the battery module support plate 1 and prevent deformation caused by long-term stress.

[0045] In addition, mutually symmetrical positioning holes 103 are respectively provided between the first screw through hole 105 and the second screw through hole 106, and between the third screw through hole 107 and the fourth screw through hole 108;

[0046] Correspondingly, the two module end plates 501 of the battery module 5 are respectively provided with positioning columns 504 corresponding to the positioning holes 103; the battery module 5 can be quickly installed on its corresponding module stacking position 101 through the positioning columns 504 and the positioning holes 103.

[0047] On the other hand, Figure 1 and 2 As shown, in this embodiment, mutually symmetrical positioning grooves 104 are respectively provided between the first screw through hole 105 and the third screw through hole 107, and between the second screw through hole 106 and the fourth screw through hole 108, and the positioning grooves 104 correspond to the bottoms of the two module side panels 502 of the battery module 5; by providing the positioning grooves 104 to limit the module side panels 502, the left and right sides of the battery module 5 can be limited, which can effectively prevent it from being offset to the left and right.

[0048] As an optimization of this solution, the two adjacent positioning grooves 104 on the two adjacent module stacking positions 101 form a whole; this structure can achieve a tight fit between the two battery modules 5 .

[0049] As a further optimization of this solution, Figure 3 As shown, a heating film 8 is also provided on the module stacking position 101;

[0050] Specifically, for the battery module 5 on the top stacking layer 2 and the middle stacking layer 3, the heating film 8 is directly installed on the module stacking position 101, and is used to provide effective heating protection for the battery module 5 in extremely low or high temperature environments, ensuring that the battery module 5 can work normally under these conditions and maintain its performance and life.

[0051] As for the battery modules 5 on the bottom stacking layer 4 , the heating film 8 may be directly attached to the bottom wall of the battery pack box to achieve heating of the battery modules 5 on the bottom stacking layer 4 .

[0052] 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 battery module stacking bracket for a battery pack, installed in a battery pack box, characterized in that: It comprises a plurality of battery module support plates (1) arranged in an upper and lower manner, wherein the upper portion of the battery module support plate (1) located at the top serves as a top stacking layer (2), the lower portion of the battery module support plate (1) located at the bottom serves as a bottom stacking layer (4), and the space between adjacent battery module support plates (1) constitutes an intermediate stacking layer (3); The battery module support plate (1) is provided with a plurality of module stacking positions (101) for stacking battery modules (5), and each of the module stacking positions (101) is provided with a screw through hole (102) for a screw (6) to pass through; correspondingly, the battery module (5) comprises module end plates (501) arranged at both ends, the two module end plates (501) are connected by mutually symmetrical module side plates (502), and the module end plates (501) are provided with screw series holes (503) for the screw (6) to pass through.

2. A battery module stacking bracket for a battery pack according to claim 1, characterized in that: The module stacking position (101) corresponds to the battery module (5) and is rectangular.

3. A battery module stacking bracket for a battery pack according to claim 2, characterized in that: There are four corresponding screw through holes (102) on each module stacking position (101), including a first screw through hole (105), a second screw through hole (106), a third screw through hole (107) and a fourth screw through hole (108) which are symmetrical to each other and are respectively arranged at four diagonal corners of the module stacking position (101).

4. A battery module stacking bracket for a battery pack according to claim 3, characterized in that: A support block (7) capable of supporting the bottom of the module end plate (501) is arranged on the screw through hole (102).

5. A battery module stacking bracket for a battery pack according to claim 3 or 4, characterized in that: Mutually symmetrical positioning holes (103) are respectively provided between the first screw through hole (105) and the second screw through hole (106), and between the third screw through hole (107) and the fourth screw through hole (108); Correspondingly, positioning columns (504) corresponding to the positioning holes (103) are respectively provided on the two module end plates (501) of the battery module (5).

6. A battery module stacking bracket for a battery pack according to claim 3 or 4, characterized in that: Mutually symmetrical positioning grooves (104) are respectively arranged between the first screw through hole (105) and the third screw through hole (107), and between the second screw through hole (106) and the fourth screw through hole (108), and the positioning grooves (104) correspond to the bottoms of the two module side plates (502) of the battery module (5).

7. A battery module stacking bracket for a battery pack according to claim 6, characterized in that: The two adjacent positioning grooves (104) on the two adjacent module stacking positions (101) form a whole.

8. The battery module stacking bracket for a battery pack according to claim 1, characterized in that: A heating film (8) is also provided on the module stacking position (101).

9. A battery module stacking bracket for a battery pack according to claim 1, characterized in that: The battery module support plate (1) is made of metal.

10. A battery module stacking bracket for a battery pack according to claim 1, characterized in that: The screw rod (6) is an external hexagonal bolt, and a threaded section (601) is provided at its bottom end for screwing with a threaded groove provided on the bottom wall of the battery pack body.

Images