Lithium cell support structure

Abstract

The utility model discloses a lithium cell support structure which comprises a lower bottom plate, a plurality of support frames are fixedly mounted on the upper surface of the lower bottom plate and are linearly distributed, every two adjacent support frames are fixedly connected through welding, and side protection springs are fixedly mounted on two sides in each support frame. A side position flexible plate is fixedly installed between every two adjacent side position protection springs on the same side, and a plurality of evenly-distributed silica gel contact pieces adhere to the inner walls of the two ends of the interior of each support frame body through glue. Existing rigid fixed connection is converted into flexible contact of the spring and the contact piece, so that the lithium battery cell can be effectively prevented from shaking, collision and damage in the transportation or use process, better flexible protection is performed through the flexible structure, collision and damage are avoided, the service life of the lithium battery cell is prolonged, and meanwhile, the potential safety hazard of collision is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery cells, in particular to a lithium battery cell bracket structure. Background Art

[0002] Lithium battery cells refer to single electrochemical cells containing positive and negative electrodes, which are generally not used directly. Unlike batteries, which contain protective circuits and shells and can be used directly;

[0003] The composition of lithium-ion secondary rechargeable batteries is as follows: battery cell + protection circuit board. The battery cell is the power storage part of the rechargeable battery after removing the protection circuit board. The quality of the battery cell directly determines the quality of the rechargeable battery;

[0004] In order to meet the use requirements of the equipment, it is usually necessary to assemble multiple soft-pack batteries in series or in parallel. Since the positive and negative tabs of the soft-pack batteries are metal sheets, a rigid bracket must be provided for fixing during connection and fixing, otherwise the tabs will break.

[0005] Prior art ZL201420319328.5 discloses a lithium battery module, comprising: a shell, an upper cover, a battery cell group arranged in the shell, which is composed of a plurality of battery cells; a bracket detachably connected to the shell; a conductive sheet connected in series and / or in parallel with the battery cell; and two conductive columns with the same structure; the lithium battery module is configured to change the output current of the conductive column at the same position by adjusting the electrode position of the battery cell;

[0006] The problem with the above-mentioned lithium battery module is that the contact between the battery cell and the bracket is a rigid connection. Therefore, during transportation or use, if the connection is not firm, a hard collision is likely to occur between the battery cell and the bracket, which may easily cause collision damage to the battery cell. In severe cases, it may cause the battery cell to short circuit and catch fire, posing certain safety hazards in use. For this reason, the utility model proposes a lithium battery cell bracket structure. Utility Model Content

[0007] The purpose of the utility model is to provide a lithium battery support structure to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lithium battery cell bracket structure, comprising a lower base plate, a plurality of bracket frames are fixedly installed on the upper surface of the lower base plate, the plurality of bracket frames are linearly distributed, two adjacent bracket frames are fixedly connected by welding, side protection springs are fixedly installed on both sides of each bracket frame, a side flexible plate is fixedly installed between two adjacent side protection springs on the same side, and a plurality of evenly distributed silicone contacts are adhered to the inner walls at both ends of each bracket frame by glue.

[0009] Preferably, the interior of the support frame is of a hollow structure design, and the hollow groove of the support frame is an inner battery cavity for placing the lithium battery cell.

[0010] Preferably, a plurality of evenly distributed flexible board grooves are provided on the side flexible board, and the side flexible board is a PVC flexible soft board.

[0011] Preferably, a plurality of evenly distributed primary heat dissipation slots are provided on the outer wall of the bracket frame, and secondary heat dissipation slots are provided on the outer walls on both sides of the bracket frame.

[0012] Preferably, the support frame is made of aluminum alloy.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can effectively perform elastic protection on the side of the lithium battery shell through the coordinated use of the side flexible plate and the side protection spring, has good side flexible protection effect, and has good use performance;

[0015] A plurality of silicone contact sheets are arranged on the inner side of the large-area end surface of the bracket frame, and the plurality of silicone contact sheets can directly contact the lithium battery cell, and the rigid connection of the bracket frame is converted into a flexible contact of silicone. In actual use, the utility model can effectively provide flexible protection for the lithium battery cell through the coordinated use of the structures, and convert the existing rigid fixed connection into a flexible contact between the spring and the contact sheet, thereby effectively preventing the lithium battery cell from shaking and collision damage during transportation or use, and providing better flexible protection through the flexible structure to avoid collision damage, thereby increasing the service life of the lithium battery cell and reducing collision safety hazards;

[0016] The utility model can ensure the air permeability inside the bracket and the normal air circulation by setting the primary heat dissipation slot body and the secondary heat dissipation slot body, thereby ensuring the heat dissipation of the lithium battery cells when used in combination and avoiding overheating and short circuit. Adjacent lithium battery cells are separated by a certain distance through the frame of the bracket frame, which can effectively avoid the direct binding contact of the existing lithium battery cells and provide a certain structural separation cavity for heat dissipation work, thereby improving the heat dissipation performance, avoiding the situation where heat cannot be dissipated in time when they are in contact with each other, and improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a support structure assembly according to an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of a single bracket frame structure of an embodiment of the utility model;

[0019] Figure 3This is a schematic diagram of the top plan structure of the support frame of an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the internal cross-sectional structure of the support frame of an embodiment of the utility model.

[0021] In the figure: 1. Lower base plate; 2. Bracket frame; 3. Primary heat dissipation tank; 4. Inner battery cell cavity; 5. Silicone contact piece; 6. Side protection spring; 7. Side flexible board; 8. Flexible board slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figure 1-4 The utility model provides an embodiment: a lithium battery support structure, including a lower bottom plate 1, a plurality of support frames 2 are fixedly installed on the upper surface of the lower bottom plate 1, and the support frames 2 are made of aluminum alloy material. The aluminum alloy material makes the support frame 2 of the utility model have a higher structural strength, and can reduce the overall weight of the battery when used in combination, with a technical effect of lightweight use, convenient transportation and handling, and good performance;

[0026] The interior of the bracket frame 2 is a hollow structure design, and the hollow groove of the bracket frame 2 is an inner battery cavity 4 for placing the lithium battery. Several bracket frames 2 are linearly distributed, and two adjacent bracket frames 2 are fixedly connected by welding, so that the several bracket frames 2 form an integral body, which is convenient for the combined use of lithium batteries.

[0027] In this embodiment, side protection springs 6 are fixedly installed on both sides of each bracket frame 2, and a side flexible plate 7 is fixedly installed between two adjacent side protection springs 6 on the same side. The inner walls at both ends of each bracket frame 2 are adhered with a number of evenly distributed silicone contacts 5 by glue.

[0028] Among them, a number of evenly distributed flexible board grooves 8 are opened on the side flexible board 7, and the side flexible board 7 is a PVC flexible soft board. The PVC flexible soft board can ensure insulation while ensuring flexible contact, avoiding battery contact and conduction, and has a good insulation protection effect;

[0029] According to the above structure, when the utility model is actually used, the inner cell cavity 4 of the plurality of support frames 2 can be used to place and install the lithium battery cell. After the lithium battery cell is installed inside the support frame 2, the side of the lithium battery cell can contact the side flexible plate 7, and the side protection spring 6 is installed on the back of the side flexible plate 7. Therefore, through the coordinated use of the side flexible plate 7 and the side protection spring 6, the side of the lithium battery cell shell can be effectively elastically protected, which has a good side flexible protection effect and good use performance.

[0030] In addition, a plurality of silicone contact sheets 5 are arranged on the inner side of the large-area end surface of the bracket frame 2. The plurality of silicone contact sheets 5 can make direct contact with the lithium battery cell, and the rigid connection of the bracket frame 2 is converted into a flexible contact of silicone. In actual use, the utility model can effectively provide flexible protection for the lithium battery cell through the coordinated use of structures, and convert the existing rigid fixed connection into a flexible contact between the spring and the contact sheet, thereby effectively avoiding the lithium battery cell from shaking and collision damage during transportation or use. Better flexible protection is provided through the flexible structure, collision damage is avoided, the service life of the lithium battery cell is increased, and the collision safety hazard is reduced.

[0031] In this embodiment, in order to improve the overall heat dissipation of the bracket structure and avoid heat accumulation of the internal lithium battery cells, a plurality of evenly distributed first-level heat dissipation slots 3 are provided on the outer wall of the bracket frame 2, and second-level heat dissipation slots (shown in the figure, not marked) are provided on the outer walls of both sides of the bracket frame 2. The first-level heat dissipation slots 3 and the second-level heat dissipation slots can ensure the air permeability inside the bracket and normal air circulation, thereby ensuring the heat dissipation of the lithium battery cells when used in combination, avoiding overheating and short circuit, and the adjacent lithium battery cells are separated by a certain distance by the frame of the bracket frame 2, which can effectively avoid the existing lithium battery cells from being directly bundled and contacted, and provide a certain structure to separate the cavity for heat dissipation, thereby improving the heat dissipation performance, avoiding the situation where heat cannot be dissipated in time when they are in contact with each other, and improving the use effect.

[0032] Working principle: When in use, several lithium batteries that are adapted to the bracket frame 2 of the utility model are respectively placed in the bracket frame 2 of the bottom plate 1, and the lithium batteries are fixedly installed in the bracket frame 2, and then uniformly connected by connecting sheets to ensure the combined use effect of the lithium batteries;

[0033] After the lithium battery cell is installed in the bracket frame 2, the side of the lithium battery cell can contact the side flexible plate 7, and the side protection spring 6 is installed on the back of the side flexible plate 7. Therefore, through the coordinated use of the side flexible plate 7 and the side protection spring 6, the side of the lithium battery cell shell can be effectively elastically protected, with good side flexible protection effect and good performance.

[0034] A plurality of silicone contact sheets 5 are arranged on the inner side of the large-area end surface of the bracket frame 2, and the plurality of silicone contact sheets 5 can directly contact the lithium battery cell, and the rigid connection of the bracket frame 2 is converted into a flexible contact of silicone. In actual use, the utility model can effectively provide flexible protection for the lithium battery cell through the coordinated use of the structures, and convert the existing rigid fixed connection into a flexible contact between the spring and the contact sheet, so as to effectively prevent the lithium battery cell from shaking and collision damage during transportation or use, and better flexible protection is provided through the flexible structure to avoid collision damage, thereby increasing the service life of the lithium battery cell and reducing collision safety hazards;

[0035] The utility model can ensure the air permeability inside the bracket and the normal air circulation by setting the primary heat dissipation slot body 3 and the secondary heat dissipation slot body, so as to ensure the heat dissipation of the lithium battery cells when used in combination, and avoid overheating and short circuit. The adjacent lithium battery cells are separated by a certain distance by the frame of the bracket frame body 2, which can effectively avoid the direct binding contact of the existing lithium battery cells, and provide a certain structural separation cavity for the heat dissipation work, so as to improve the heat dissipation performance, avoid the situation that the heat cannot be dissipated in time when they are in contact with each other, and improve the use effect.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A lithium battery support structure, comprising a lower base plate (1), characterized in that: A plurality of support frames (2) are fixedly mounted on the upper surface of the lower base plate (1), the plurality of support frames (2) are linearly distributed, two adjacent support frames (2) are fixedly connected by welding, side protection springs (6) are fixedly mounted on both sides of each support frame (2), a side flexible plate (7) is fixedly mounted between two adjacent side protection springs (6) on the same side, and a plurality of evenly distributed silicone contact sheets (5) are adhered to the inner walls of the two ends of each support frame (2) by glue.

2. A lithium battery support structure according to claim 1, characterized in that: The interior of the support frame (2) is of a hollow structure design, and the hollow groove of the support frame (2) is an inner battery cavity (4) for placing a lithium battery cell.

3. A lithium battery support structure according to claim 1, characterized in that: The side flexible board (7) is provided with a plurality of evenly distributed flexible board grooves (8), and the side flexible board (7) is a PVC flexible soft board.

4. A lithium battery support structure according to claim 1, characterized in that: A plurality of evenly distributed primary heat dissipation slots (3) are provided on the outer wall of the support frame (2), and secondary heat dissipation slots are provided on the outer walls on both sides of the support frame (2).

5. A lithium battery support structure according to claim 1, characterized in that: The support frame (2) is made of aluminum alloy material.

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