Modularized splicing type battery pack

Abstract

The utility model relates to the technical field of battery packs, in particular to a modular splicing type battery pack which comprises a plurality of battery packs stacked up and down, and the adjacent battery packs are spliced through a battery pack splicing frame; the battery pack splicing frame comprises a first splicing notch and a second splicing notch which are symmetrically arranged up and down; a limiting baffle plate mechanism is arranged on the battery pack, the lower part of the battery pack positioned on the upper side can be inserted into the first splicing notch, and the limiting baffle plate mechanism is used for limiting the insertion direction; the upper portion of the battery pack located on the lower side can be inserted into the second splicing notch, and the inserting direction is limited through the limiting baffle mechanism. According to the scheme, the structure is simple, the battery pack is easy to replace and maintain, the structure is compact after splicing, the heat dissipation performance is better in use, and the battery pack is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, and in particular to a modular spliced ​​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 used in 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.

[0004] In this structure, the battery modules are close to each other, which will affect each other during operation, such as insufficient heat dissipation. In addition, if you want to increase or decrease the number of battery modules, you need to disassemble or replace the battery box with a larger capacity, which invisibly increases the complexity and cost of maintenance. And because the high-voltage box is installed inside the battery box, its safety is also affected.

[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 modular splicing battery pack for solving the technical problems of poor heat dissipation caused by the stacking and connection of multiple battery modules in the same battery box in the traditional technology, cumbersome increase or decrease or maintenance of battery modules, and potential safety hazards caused by the built-in high-voltage box.

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

[0008] A modular splicing battery pack, comprising a plurality of battery packs stacked up and down, wherein adjacent battery packs are spliced ​​together by a battery pack splicing frame;

[0009] The battery pack splicing frame includes a first splicing notch and a second splicing notch symmetrically arranged up and down;

[0010] A limiting baffle mechanism is provided on the battery pack, and the lower part of the battery pack located on the upper side can be inserted into the first splicing slot, and the insertion direction is limited by the limiting baffle mechanism; the upper part of the battery pack located on the lower side can be inserted into the second splicing slot, and the insertion direction is limited by the limiting baffle mechanism.

[0011] Furthermore, after splicing, there is a gap between the battery pack located above and the battery pack located below.

[0012] Further, the battery pack includes a battery pack upper cover and a battery pack lower cover that can be buckled with each other;

[0013] An upper cover flange is provided at the cover opening of the upper cover of the battery pack, and a lower cover flange is provided at the cover opening of the lower cover of the battery pack. The upper cover flange and the lower cover flange are attached to each other to form the limit baffle mechanism.

[0014] Furthermore, a plurality of battery modules are disposed in the lower cover of the battery pack, and the battery modules are arranged in an array in the lower cover of the battery pack.

[0015] Furthermore, a wiring hole is provided on the side of the upper cover of the battery pack for connecting the internal cables with the external high-voltage box.

[0016] Furthermore, a high-voltage box support frame for installing the high-voltage box is also provided on the side of the battery pack splicing frame.

[0017] Furthermore, the battery pack splicing frame includes a splicing upper frame and a splicing lower frame corresponding to the appearance of the battery pack, and the splicing upper frame and the splicing lower frame are connected by columns to form a cubic frame structure.

[0018] Furthermore, the spliced ​​upper frame and the spliced ​​lower frame are symmetrically arranged in the upper and lower parts, and the first spliced ​​notch is arranged on the spliced ​​upper frame, and the second spliced ​​notch is arranged on the spliced ​​lower frame.

[0019] Furthermore, a plurality of splicing threaded holes are respectively provided on the splicing upper frame, the splicing lower frame, and the limit baffle mechanism, and the splicing upper frame, the splicing lower frame, and the limit baffle mechanism are connected by tightening the splicing screws.

[0020] Furthermore, the battery pack splicing frame is a metal bracket.

[0021] Beneficial Effects

[0022] The modular splicing battery pack provided by the utility model treats a single battery pack as a single module, sets a limit baffle mechanism on the outer wall of the battery pack, and realizes the splicing of two upper and lower adjacent battery packs through a battery pack splicing frame, so that each battery pack equipped with a battery module can work independently without being affected, and the safety hazard in use can be greatly reduced through the external high-voltage box structure. This solution is not only simple in structure and easy to replace and maintain the battery pack, but also has a compact structure after splicing, and has better heat dissipation and is safer in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a modular spliced ​​battery pack according to the utility model;

[0024] Figure 2 An exploded view of a modular spliced ​​battery pack according to the utility model;

[0025] Figure 3 This is an exploded view of a battery pack in a modular spliced ​​battery pack described in the present invention.

[0026] Graphic marking:

[0027] 1-battery pack, 101-battery pack upper cover, 102-battery pack lower cover, 103-upper cover flange, 104-lower cover flange, 105-battery module, 106-wiring hole;

[0028] 2-battery pack splicing frame, 201-first splicing notch, 202-second splicing notch, 203-high voltage box support frame, 204-splicing upper frame, 205-splicing lower frame, 206-column, 207-splicing threaded hole;

[0029] 3- High voltage box;

[0030] 4-Limiting baffle mechanism. DETAILED DESCRIPTION

[0031] 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.

[0032] like Figure 1 and 2 As shown, the present solution provides a modular splicing battery pack, comprising a plurality of battery packs 1 stacked up and down, wherein adjacent battery packs 1 are spliced ​​together by a battery pack splicing frame 2;

[0033] The battery pack splicing frame 2 includes a first splicing notch 201 and a second splicing notch 202 symmetrically arranged up and down;

[0034] A limit baffle mechanism 4 is provided on the battery pack 1, and the lower part of the battery pack 1 located on the upper side can be inserted into the first splicing slot 201, and the insertion direction is limited by the limit baffle mechanism 4; the upper part of the battery pack 1 located on the lower side can be inserted into the second splicing slot 202, and the insertion direction is limited by the limit baffle mechanism 4.

[0035] It should be noted that, after splicing, there is a gap between the battery pack 1 located above and the battery pack 1 located below, and the gap can ensure that the battery packs 1 involved in the splicing do not conflict with each other, thereby reducing mutual working interference and improving heat dissipation.

[0036] like Figure 3 As shown, as an optimization of the battery pack 1 in this embodiment, the battery pack 1 includes a battery pack upper cover 101 and a battery pack lower cover 102 that can be buckled with each other;

[0037] An upper cover flange 103 is provided at the cover opening of the battery pack upper cover 101, and a lower cover flange 104 is provided at the cover opening of the battery pack lower cover 102. The upper cover flange 103 and the lower cover flange 104 are attached to each other to form the limit baffle mechanism 4;

[0038] In the present embodiment, the upper cover flange 103 and the lower cover flange 104 are both right-angled edges. When the battery pack upper cover 101 and the battery pack lower cover 102 are buckled together, the upper cover flange 103 and the lower cover flange 104 can fit each other. By screwing the upper cover flange 103 and the lower cover flange 104 together with screws, the battery pack upper cover 103 and the battery pack lower cover 104 can be connected.

[0039] A plurality of battery modules 105 are disposed in the battery pack lower cover 102 . The battery modules 105 are arranged in an array in the battery pack lower cover 102 and are connected to each other through cables.

[0040] A wiring hole 106 is provided on the side of the battery pack cover 101 for connecting the internal cables with the external high-voltage box 3, so that the battery modules 105 in the battery pack 1 are connected and then aggregated on the high-voltage box 3 located on the outside.

[0041] A high-voltage box support frame 203 for mounting the high-voltage box 3 is also provided on the side of the battery pack splicing frame 2 .

[0042] like Figure 2 As shown, as an optimization of the battery pack splicing frame 2 described in this embodiment, the battery pack splicing frame 2 includes a splicing upper frame 204 and a splicing lower frame 205 corresponding to the appearance of the battery pack 1, and the splicing upper frame 204 and the splicing lower frame 205 are connected by a column 206 to form a cubic frame structure, and a ventilation groove is formed on the side to facilitate heat dissipation of the battery pack.

[0043] The upper splicing frame 204 and the lower splicing frame 205 are symmetrically arranged in a vertical direction, and the upper splicing frame 204 is provided with the first splicing notch 201, and the lower splicing frame 205 is provided with the second splicing notch 202;

[0044] Specifically, when the two battery packs 1 are spliced ​​and connected, the spliced ​​upper frame 204 can contact the bottom surface of the lower cover flange 104 of the battery pack 1 located above to achieve position limiting, and the spliced ​​lower frame 205 can contact the top surface of the upper cover flange 103 of the battery pack 1 located below to achieve position limiting.

[0045] In addition, the present embodiment further provides a plurality of splicing threaded holes 207 on the splicing upper frame 204, the splicing lower frame 205, and the limit baffle mechanism 4, respectively, and the splicing upper frame 204, the splicing lower frame 205, and the limit baffle mechanism 4 are connected by tightening the splicing screws, that is, the battery pack 1 is fixedly connected to the battery pack splicing frame 2, so as to prevent displacement due to external vibration after splicing.

[0046] It should be noted that the battery pack splicing frame 2 in this embodiment is a metal bracket, which is used to increase the overall firmness of the battery packs 1 after splicing.

[0047] 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 modular splicing battery pack, characterized in that: It comprises a plurality of battery packs (1) stacked up and down, wherein adjacent battery packs (1) are spliced ​​together via a battery pack splicing frame (2); The battery pack splicing frame (2) comprises a first splicing notch (201) and a second splicing notch (202) which are symmetrically arranged up and down; The battery pack (1) is provided with a limit baffle mechanism (4); the lower part of the battery pack (1) located on the upper side can be inserted into the first splicing slot (201), and the insertion direction is limited by the limit baffle mechanism (4); the upper part of the battery pack (1) located on the lower side can be inserted into the second splicing slot (202), and the insertion direction is limited by the limit baffle mechanism (4).

2. A modular splicing battery pack according to claim 1, characterized in that: After splicing, there is a gap between the battery pack (1) located above and the battery pack (1) located below.

3. A modular spliced ​​battery pack according to claim 2, characterized in that: The battery pack (1) comprises a battery pack upper cover (101) and a battery pack lower cover (102) which can be buckled together; An upper cover flange (103) is provided at the cover opening of the battery pack upper cover (101), and a lower cover flange (104) is provided at the cover opening of the battery pack lower cover (102). The upper cover flange (103) and the lower cover flange (104) are attached to each other to form the limit baffle mechanism (4).

4. A modular spliced ​​battery pack according to claim 3, characterized in that: A plurality of battery modules (105) are arranged in the battery pack lower cover (102), and the battery modules (105) are arranged in an array in the battery pack lower cover (102).

5. A modular spliced ​​battery pack according to claim 3 or 4, characterized in that: A wiring hole (106) is provided on the side of the battery pack upper cover (101) for connecting internal cables to the external high-voltage box (3).

6. A modular spliced ​​battery pack according to claim 5, characterized in that: A high-voltage box support frame (203) for mounting the high-voltage box (3) is also provided on the side of the battery pack splicing frame (2).

7. A modular spliced ​​battery pack according to claim 1, characterized in that: The battery pack splicing frame (2) comprises a splicing upper frame (204) and a splicing lower frame (205) corresponding to the appearance of the battery pack (1); the splicing upper frame (204) and the splicing lower frame (205) are connected via columns (206) to form a cubic frame structure.

8. A modular spliced ​​battery pack according to claim 7, characterized in that: The splicing upper frame (204) and the splicing lower frame (205) are arranged symmetrically up and down, and the first splicing notch (201) is arranged on the splicing upper frame (204), and the second splicing notch (202) is arranged on the splicing lower frame (205).

9. A modular spliced ​​battery pack according to claim 7 or 8, characterized in that: A plurality of splicing threaded holes (207) are respectively provided on the splicing upper frame (204), the splicing lower frame (205), and the limit baffle mechanism (4), and the splicing upper frame (204), the splicing lower frame (205), and the limit baffle mechanism (4) are spliced ​​by tightening the splicing screws. And the limit baffle mechanism (4) is connected.

10. The modular splicing battery pack according to claim 1, characterized in that: The battery pack splicing frame (2) is a metal frame.

Images