CN219203415U

CN219203415U - Battery cell module assembly structure of battery pack

Info

Publication number: CN219203415U
Application number: CN202320037501.1U
Authority: CN
Inventors: 颜士光; 方和根; 黄冬娇
Original assignee: Shenzhen Tiger Electronic Technology Co ltd
Current assignee: Shenzhen Tiger Electronic Technology Co ltd
Priority date: 2023-01-07
Filing date: 2023-01-07
Publication date: 2023-06-16
Anticipated expiration: 2033-01-07

Abstract

The utility model relates to the technical field of battery cell assembly, in particular to a battery cell module assembly structure, which comprises a battery cell main body and a mounting frame for accommodating the battery cell main body, wherein one side of the inner wall of the mounting frame is fixedly connected with two partition plates made of heat conducting materials, one side of each partition plate is fixedly connected with one side of the inner wall of the mounting frame, the inside of each partition plate is provided with a cavity, the inside of each partition plate is used for equally dividing the inner space of the mounting frame, U-shaped pipes are fixedly connected in the cavities of the two partition plates, the battery cell main bodies can be separated through the partition plates arranged in the mounting frame, the battery cell main bodies are prevented from being mutually collided due to vibration, and a U-shaped pipe is arranged in each partition plate, a refrigerant can circularly flow in a refrigerant input pipe, the U-shaped pipe, a communicating pipe and a refrigerant output pipe, and the heat between the two battery cell main bodies is driven by the refrigerant flowing in the U-shaped pipe, and the heat dissipation capacity of the battery cell inside the battery cell is improved.

Description

Battery cell module assembly structure of battery pack

Technical Field

The utility model relates to the technical field of battery cell assembly, in particular to a battery pack battery cell modular assembly structure.

Background

The battery cell refers to a core component in the battery, and except for accidents of the battery cell, the battery pack mainly comprises a shell, an electric control unit and the like.

The battery cells constituting the battery pack need to be assembled, such as the battery cell modular assembly structure and the battery pack proposed in patent application No. CN201120072646.2, and a battery cell accommodation space is formed between the main casing and the cover plate or the adjacent main casing.

In the prior art, the assembling structure proposed in the patent application number CN201120072646.2 is characterized in that when the battery cells are assembled into a power supply, the battery cells are required to be arranged in layers at different heights, but the assembling mechanism can enable the battery cells to be contacted together, so that heat among the battery cells is inconvenient to timely discharge, and the aging of the battery cells can be accelerated if the heat among the battery cells cannot be timely discharged.

Disclosure of Invention

The utility model aims to provide a battery pack cell module assembly structure for solving the problems in the background technology.

The aim of the utility model can be achieved by the following technical scheme:

the battery pack battery cell module assembly structure comprises a battery cell main body and a mounting frame for accommodating the battery cell main body, wherein two partition plates made of heat conduction materials are fixedly connected to one side of the inner wall of the mounting frame, one side of each partition plate is fixedly connected with one side of the inner wall of the mounting frame, the inside of each partition plate is provided with a cavity, and the partition plates are used for equally dividing the inner space of the mounting frame;

the inside all fixedly connected with U type pipe of cavity of two the division board, fixedly connected with communicating pipe between two U type pipes, two U type pipe keep away from the one end of communicating pipe fixedly connected with refrigerant input tube and refrigerant output tube respectively.

Preferably, a plurality of ventilation slots are formed in the two sides of the partition plate in a linear array mode, a fixing block is fixedly connected to the outer surface of the U-shaped pipe, and the fixing block is fixedly connected with the inner surface of the partition plate and used for improving the stability of the U-shaped pipe.

Preferably, one side of the battery cell main body is fixedly connected with a positioning lug, and one side of the mounting frame is provided with a positioning notch matched with the positioning lug.

Preferably, one side of the mounting frame is provided with a lateral cover plate for sealing one side of the mounting frame, a first fixing hole is formed in the lateral cover plate, a first fixing screw hole is formed in one side of the mounting frame, a first fixing pin is arranged on the lateral cover plate, and one end of the first fixing pin penetrates through the first fixing hole and is in threaded connection with the first fixing screw hole.

Preferably, the top of mounting bracket is provided with and is used for carrying out confined top cap to the mounting bracket top, has seted up the second fixed orifices on the top cap, and the second screw hole has all been seted up at the top of mounting bracket and division board, and the top of top cap is provided with the second fixed pin, and the bottom of second fixed pin runs through the second fixed orifices and with second screw hole threaded connection.

Preferably, the top fixedly connected with location arch of electric core main part, the side cover board is close to one side fixedly connected with fixed cover piece of electric core main part, the bottom fixedly connected with of top cap and the location circle of the protruding cooperation use of location, the fixed axle of the cooperation of fixed cover piece use.

The utility model has the beneficial effects that:

through the division board that sets up inside the mounting bracket, can separate the electric core main part, avoid the vibration to cause electric core main part to collide each other, and be provided with U type pipe in the division board, the refrigerant can circulate in refrigerant input tube, U type pipe, communicating pipe and refrigerant output tube, flow the heat that drives between two electric core main parts in U type pipe through the refrigerant, promote the heat dispersion to the inside electric core of group battery, avoid because the heat between a plurality of electric cores of group battery can't in time be discharged and cause electric core ageing.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the bottom portion of the top cover of FIG. 1;

FIG. 3 is a schematic view of the mounting bracket portion of FIG. 1;

FIG. 4 is a schematic view of the rear view of the mounting bracket of FIG. 3;

fig. 5 is a cross-sectional view of a side view portion of the cover plate of fig. 3.

Reference numerals in the drawings are as follows:

1. the battery cell main part, 2, the mounting bracket, 3, division board, 4, U type pipe, 6, communicating pipe, 7, refrigerant input tube, 8, refrigerant output tube, 9, ventilative notch, 10, fixed block, 11, location lug, 12, location notch, 13, side cover plate, 14, first fixed orifices, 15, first fixed screw, 16, first fixed pin, 17, top cap, 18, second fixed orifices, 19, second screw hole, 20, second fixed pin, 21, location arch, 22, fixed cover piece, 23, retainer plate, 24, fixed axle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The battery pack battery cell module assembly structure comprises a battery cell main body 1 and a mounting frame 2 for accommodating the battery cell main body 1, wherein two partition plates 3 made of heat-conducting materials are fixedly connected to one side of the inner wall of the mounting frame 2, one side of each partition plate 3 is fixedly connected with one side of the inner wall of the mounting frame 2, the inside of each partition plate 3 is provided with a cavity, and the partition plates 3 are used for equally dividing the inner space of the mounting frame 2;

the inside fixedly connected with U type pipe 4 of cavity of two division board 3, fixedly connected with communicating pipe 6 between two U type pipes 4, the one end that two U type pipes 4 kept away from communicating pipe 6 is fixedly connected with refrigerant input tube 7 and refrigerant output tube 8 respectively.

As shown in fig. 1, the partition plate 3 divides the inside of the mounting frame 2 into three independent areas, and each area can be internally provided with a cell main body 1, so that different cell main bodies 1 can be separated through the partition plate 3, and mutual contact between the cell main bodies 1 is avoided.

The two sides of the partition plate 3 are provided with a plurality of ventilation slots 9 in a linear array, the outer surface of the U-shaped tube 4 is fixedly connected with a fixing block 10, and the fixing block 10 is fixedly connected with the inner surface of the partition plate 3 and used for improving the stability of the U-shaped tube 4.

As shown in fig. 1, 3 and 5, through the ventilation notch 9 provided on the partition plate 3, the heat exchange capability of the refrigerant in the passing U-shaped tube 4 and between the cell main bodies 1 can be enhanced, and the cooling capability of the cell main bodies 1 can be enhanced.

One side of the battery cell main body 1 is fixedly connected with a positioning lug 11, and one side of the mounting frame 2 is provided with a positioning notch 12 matched with the positioning lug 11.

As shown in fig. 1, when the cell main body 1 is mounted inside the mounting frame 2, the positioning protrusion can be clamped into the positioning notch 12, so that the stability of the cell main body 1 is improved.

One side of mounting bracket 2 is provided with and is used for carrying out confined lateral cover plate 13 to mounting bracket 2 one side, has seted up first fixed orifices 14 on the lateral cover plate 13, and first fixed screw 15 has been seted up to one side of mounting bracket 2, is provided with first fixed pin 16 on the lateral cover plate 13, and the one end of first fixed pin 16 runs through first fixed orifices 14 and with first fixed screw 15 threaded connection.

The top of mounting bracket 2 is provided with and is used for carrying out confined top cap 17 to mounting bracket 2 top, has seted up second fixed orifices 18 on the top cap 17, and second screw hole 19 has all been seted up at the top of mounting bracket 2 and division board 3, and the top of top cap 17 is provided with second fixed pin 20, and second fixed pin 20's bottom runs through second fixed orifices 18 and with second screw hole 19 threaded connection.

The top of the battery cell main body 1 is fixedly connected with a positioning protrusion 21, one side of the lateral cover plate 13, which is close to the battery cell main body 1, is fixedly connected with a fixed sleeve block 22, and the bottom of the top cover 17 is fixedly connected with a positioning ring 23 matched with the positioning protrusion 21 and a fixed shaft 24 matched with the fixed sleeve block 22.

As shown in fig. 1 and 2, when the cell main body 1 is mounted inside the mounting frame 2, first, the first fixing pin 16 is screwed to the first fixing screw hole 15 through the first fixing hole 14, the lateral cover plate 13 is fixed to one side of the mounting frame 2, then the top cover 17 is disposed to the top of the mounting frame 2, so that the positioning ring 23 is sleeved outside the positioning boss 21, the cell main body 1 is positioned, the fixing shaft 24 is screwed to the second fixing hole 18 through the fixing sleeve block 22, and then the second fixing pin 20 is screwed to the second screw hole 19 through the second fixing hole 18, and the top cover 17 is fixed to the top of the mounting frame 2, thereby completing the modular assembly of the cell.

The utility model provides a battery pack cell module assembly structure, which has the following working principle:

when the battery cell main body 1 is installed inside the installation frame 2 and the fixing of the lateral cover plate 13 and the top cover 17 is completed, different battery cell main bodies 1 can be separated by the separation plate 3 at the moment, so that the heat dissipation of the battery cell main bodies 1 is facilitated, and the mutual collision between the battery cell main bodies 1 caused by vibration is avoided;

then can be with outside refrigerant through refrigerant input tube 7 input to the inside U type pipe 4 of division board 3, can flow in U type pipe 4 after through communicating pipe 6 input to the inside U type pipe 4 of another division board 3, finally input to refrigerant output tube 8 to export outside through refrigerant output tube 8, conveniently input into refrigerant input tube 7 once more through external equipment, accomplish the circulation flow of refrigerant.

Compared with the related art, the battery cell module assembly structure of the battery pack has the following beneficial effects:

through the division board 3 that sets up inside mounting bracket 2, can separate electric core main part 1, avoid the vibration to cause electric core main part 1 to collide each other, and be provided with U type pipe 4 in division board 3, the refrigerant can circulate in refrigerant input tube 7, U type pipe 4, communicating pipe 6 and refrigerant output tube 8, flow the heat that drives between two electric core main parts 1 in U type pipe 4 through the refrigerant, promote the heat dispersion to the inside electric core of group battery, avoid because the heat between a plurality of electric cores of group battery can't in time be discharged and cause electric core ageing.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The battery pack battery cell module assembly structure comprises a battery cell main body (1) and a mounting frame (2) for accommodating the battery cell main body (1), and is characterized in that two partition plates (3) made of heat-conducting materials are fixedly connected to one side of the inner wall of the mounting frame (2), one side of each partition plate (3) is fixedly connected with one side of the inner wall of the mounting frame (2), a cavity is formed in the partition plate (3), and the partition plates (3) are used for equally dividing the inner space of the mounting frame (2);

the inside equal fixedly connected with U type pipe (4) of cavity of two division board (3), fixedly connected with communicating pipe (6) between two U type pipes (4), the one end that communicating pipe (6) was kept away from to two U type pipes (4) is fixedly connected with refrigerant input tube (7) and refrigerant output tube (8) respectively.

2. The battery cell module assembly structure according to claim 1, wherein a plurality of ventilation slots (9) are formed in linear arrays on two sides of the partition plate (3), a fixing block (10) is fixedly connected to the outer surface of the U-shaped tube (4), and the fixing block (10) is fixedly connected with the inner surface of the partition plate (3) and used for improving stability of the U-shaped tube (4).

3. The battery cell module assembly structure according to claim 2, wherein a positioning lug (11) is fixedly connected to one side of the cell main body (1), and a positioning notch (12) matched with the positioning lug (11) is formed in one side of the mounting frame (2).

4. The battery cell module assembly structure according to claim 1, wherein a side cover plate (13) for sealing one side of the mounting frame (2) is arranged on one side of the mounting frame (2), a first fixing hole (14) is formed in the side cover plate (13), a first fixing screw hole (15) is formed in one side of the mounting frame (2), a first fixing pin (16) is arranged on the side cover plate (13), and one end of the first fixing pin (16) penetrates through the first fixing hole (14) and is in threaded connection with the first fixing screw hole (15).

5. The battery cell module assembly structure according to claim 4, wherein a top cover (17) for sealing the top of the mounting frame (2) is arranged at the top of the mounting frame (2), a second fixing hole (18) is formed in the top cover (17), second threaded holes (19) are formed in the tops of the mounting frame (2) and the partition plate (3), a second fixing pin (20) is arranged at the top of the top cover (17), and the bottom of the second fixing pin (20) penetrates through the second fixing hole (18) and is in threaded connection with the second threaded holes (19).

6. The battery pack cell module assembly structure according to claim 5, wherein a positioning protrusion (21) is fixedly connected to the top of the cell main body (1), a fixing sleeve block (22) is fixedly connected to one side of the side cover plate (13) close to the cell main body (1), and a positioning ring (23) matched with the positioning protrusion (21) and a fixing shaft (24) matched with the fixing sleeve block (22) are fixedly connected to the bottom of the top cover (17).