CN219123378U - Bracket, module and battery pack - Google Patents

Abstract

The utility model provides a bracket, a module and a battery pack, which are used for installing a battery cell, and comprise a bracket body provided with a cavity, a first clamping piece arranged on a first surface of the bracket body, and a second clamping piece arranged on a second surface of the bracket body; the first surface and the second surface are oppositely arranged on the bracket body, and the first clamping piece and the second clamping piece can be meshed with each other; according to the utility model, the upper layer module can be ensured to integrally move relative to the lower layer module, so that the time and labor saving effect is achieved during maintenance; and the bracket and the end plate can play a supporting role so as to ensure that the module is uniformly stressed and ensure the excellent performance of the whole battery system.

Description

Bracket, module and battery pack

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a bracket, a module and a battery pack.

Background

With the continuous development of new energy industry, lithium batteries are being used by various industries as energy storage units, and in order to prolong the endurance time of a lithium battery system, battery pack designers arrange more battery cores as much as possible in a limited space; however, the existing battery boundaries are different in size, so that the space reserved for the lithium battery pack is sometimes narrow to meet the requirements of the whole electromechanical system, and the situation that the length and the width are general and the height is particularly high is sometimes encountered, in this case, if only one layer of battery modules are arranged according to the length and the width, the space in the height direction is wasted, and in order to fully utilize the space, a designer has to use the space in a mode of stacking the modules.

At present, a mode for dealing with the problem in the industry is generally to arrange a layer of modules at the bottom, then partition the modules by using a partition plate, and then arrange a layer of modules on the partition plate, so that the structure is simpler, but the maintenance is more difficult, especially the problem occurs in the bottom module, all the modules at the upper layer are required to be removed at first, and the maintenance can be carried out, thereby wasting time and labor; there are also two modules stacked up and down, the fixed position is put on the end plates of both ends, this way is simpler, but only depend on the end plates of both ends to remove the atress, can make whole module atress inhomogeneous, has prolonged and will influence whole system performance. In order to solve the above problems, the present utility model provides a bracket, a module and a battery pack.

Disclosure of Invention

The utility model aims to provide a bracket, a module and a battery pack, so that an upper module can move integrally relative to a lower module, and the effects of time and labor saving are achieved during maintenance; and the bracket and the end plate can play a supporting role so as to ensure that the module is uniformly stressed and ensure the excellent performance of the whole battery system.

In order to achieve the above purpose, the utility model provides a bracket for installing an electric core, which comprises a bracket body provided with a cavity, a first clamping piece arranged on a first surface of the bracket body, and a second clamping piece arranged on a second surface of the bracket body; the first surface and the second surface are oppositely arranged on the bracket body, and the first clamping piece and the second clamping piece can be meshed with each other.

Optionally, the bracket body includes first support body and second support body, first support body with the second support body sets up relatively, just first support body with one side that the second support body is close to each other defines jointly the cavity.

Optionally, the opposite surfaces of the first frame body are provided with the first clamping piece and the second clamping piece; the opposite surfaces of the second frame body are respectively provided with the first clamping piece and the second clamping piece.

Optionally, the first clamping piece includes a plurality of first clamping parts, and the first clamping parts are in an E-shaped structure or an i-shaped structure; the second clamping piece comprises a plurality of second clamping parts, and the second clamping parts are of E-shaped structures or I-shaped structures.

Optionally, the bracket body is provided with a fixing lug, and the fixing lug is provided with a first through hole.

Optionally, the first frame body and/or the second frame body are provided with lightening holes.

Optionally, the cavity includes a first chamber and a second chamber, the first chamber and the second chamber being disposed on opposite sides of the bracket body.

A module comprises an electric core, an end plate, a supporting screw rod, a limiting nut and a plurality of brackets with butt joint surfaces which are closely distributed;

the battery cell is positioned in the cavity;

the end plates are arranged at two ends of the module;

the support screw is movably inserted in the first through holes and penetrates through the second through holes respectively formed in the two end plates, the limit nuts are matched with the support screw, and the limit nuts are abutted against the end plates.

Optionally, the device further comprises a third clamping piece and a fourth clamping piece;

the third clamping piece and the fourth clamping piece are respectively arranged on two opposite surfaces of the end plate, wherein the third clamping piece and the fourth clamping piece can be meshed with each other, the third clamping piece is on the same side as the first clamping piece, and the fourth clamping piece is on the same side as the second clamping piece.

A battery pack includes a case, and a plurality of modules stacked in a vertical direction; the upper and lower adjacent modules are assembled in the vertical direction through the engagement of the first clamping piece and the second clamping piece and the engagement of the third clamping piece and the fourth clamping piece;

the battery pack further comprises a fixing piece, wherein the fixing piece is inserted into a mounting hole formed in the vertical direction of the end plate, so that the module is fixed in the shell.

The beneficial effects of the utility model are as follows:

the first clamping piece and the second clamping piece are meshed with each other, so that the multi-layer bracket can be assembled in the vertical direction, the contact area can be increased, the strength of the mounting structure is improved, the supporting force can be dispersed, and the structural strength of the whole bracket is improved. And the bracket can also be used for protecting the battery cells.

Drawings

FIG. 1 is a schematic view of an explosion structure of a bracket according to the present utility model;

FIG. 2 is a schematic diagram of an assembled structure of upper and lower brackets according to the present utility model;

FIG. 3 is a schematic view of the first or second clamping portion with E-shaped structure according to the present utility model;

FIG. 4 is a schematic view of the first or second engaging portion of the present utility model with an I-shaped structure;

FIG. 5 is a schematic diagram of a module structure according to the present utility model;

FIG. 6 is a schematic diagram of an assembly structure of upper and lower modules according to the present utility model;

fig. 7 is a schematic structural diagram of the adjustment of the upper and lower layer modules in the horizontal direction in the present utility model.

Reference numerals

1. A bracket body; 11. a first face; 12. a second face; 13. a first frame body; 14. a second frame body; 2. a cavity; 3. a battery cell; 4. a first clamping piece; 5. a second clamping piece; 6. a fixed ear; 61. a first through hole; 7. a lightening hole; 8. an end plate; 9. a support screw; 10. a limit nut; 100. a third clamping piece; 110. a fourth clamping piece; 120. a mounting hole; 130. and a fixing piece.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are 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. Unless otherwise defined, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. As used herein, the word "comprising" and the like means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof without precluding other elements or items.

In view of the problems existing in the prior art, an embodiment of the present utility model provides a bracket for installing a battery cell 3, including a bracket body 1 provided with a cavity 2, a first clamping member 4 provided on a first face 11 of the bracket body 1, and a second clamping member 5 provided on a second face 12 of the bracket body 1, as shown in fig. 1; wherein the first surface 11 (the first surface 11 may be understood as the top surface of the bracket body 1) and the second surface 12 (the second surface 12 may be understood as the bottom surface of the bracket body 1) are disposed opposite to each other on the bracket body 1, and the first fastening member 4 and the second fastening member 5 may be engaged with each other. In this embodiment, through the mutual engagement of the first clamping member 4 and the second clamping member 5, the assembly of the upper and lower brackets is realized, as shown in fig. 2, in the assembly process of the brackets, the first clamping member 4 and the second clamping member 5 can also play a role in supporting the brackets at the upper layer, so that the brackets at the lower layer are uniformly stressed.

In one embodiment, the bracket body 1 includes a first frame 13 and a second frame 14, as shown in fig. 1, the first frame 13 and the second frame 14 are disposed opposite to each other, and sides of the first frame 13 and the second frame 14, which are close to each other, jointly define the cavity 2. The cavity 2 defined by the first frame 13 and the second frame 14 is used for installing the battery cell 3, so that in the actual use process, the battery cell 3 can be protected through the first frame 13 and the second frame 14.

When in use, the first frame 13 and the second frame 14 may be abutted to each other, or may be separated from each other, so as to ensure that the battery cell 3 has a larger installation space, and the first frame 13 and the second frame 14 are applicable to the installation of the battery cell 3 with different sizes.

In one embodiment, the first clamping member 4 includes a plurality of first clamping portions, and the first clamping portions have an E-shaped structure as shown in fig. 3, or an i-shaped structure as shown in fig. 4; the second clamping member 5 includes a plurality of second clamping portions, and the second clamping portions have an E-shaped structure as shown in fig. 3, or an i-shaped structure as shown in fig. 4.

Specifically, the E-shaped groove or the I-shaped structure is arranged, and in the assembling or disassembling process of the upper bracket and the lower bracket, the assembling or disassembling process can be completed through horizontal pulling or pushing, so that after the lower bracket is damaged, the upper bracket can be moved, the lower bracket is exposed, so that maintenance is performed, the upper bracket is not required to be disassembled and assembled, and the time and labor saving effect is achieved during the maintenance.

In an embodiment, the first frame 13 is provided with four first clamping members 4 on the first surface 11 and the second surface 12, wherein four first clamping members 4 are in an i-shaped structure, two middle parts are in an E-shaped structure, and two sides are in an E-shaped structure, and it is noted that four first clamping members 4 are symmetrically arranged with respect to the bracket body 1. The second frame 14 is provided with four second clamping members 5 on the first surface 11 and the second surface 12, wherein four second clamping members 5 are in an i-shaped structure, two middle parts are in an E-shaped structure, and two sides are in an E-shaped structure, and it is noted that four second clamping members 5 are symmetrically arranged with respect to the bracket body 1.

In one embodiment, the bracket body 1 is provided with a fixing lug 6, and the fixing lug 6 is provided with a first through hole 61, as shown in fig. 1. The fixing lugs 6 are provided for providing mounting locations for mounting the bracket on other equipment via the fixing lugs 6. In particular, the fixing lugs 6 may be mounted on the top and/or bottom and/or side surfaces of the carrier body 1. It should be noted that the fixing lugs 6 are disposed on both the first frame 13 and the second frame 14.

In one embodiment, the first frame 13 and/or the second frame 14 are provided with lightening holes 7, as shown in fig. 1. The weight-reducing holes 7 can reduce the mass of the first frame 13 and the second frame 14 at both sides and improve the structural strength of the first frame 13 and the second frame 14.

In one embodiment, the cavity 2 comprises a first chamber (not shown) and a second chamber (not shown) provided on opposite sides of the carrier body 1. It is understood that the first chamber is provided on the front end surface of the bracket body 1, and the second chamber is provided on the rear end surface of the bracket body 1. In this way, in operation, the battery cell 3 is placed in the adjacent first chamber and the second chamber, and the installation is completed.

In one embodiment, the first frame 13 is provided with a pressure relief hole (not numbered), and after the upper and lower layers of brackets are assembled, a pressure relief Kong Guodao is formed between the two brackets through the pressure relief hole; a second hole (not numbered) is formed in the first frame body 13, and after the upper layer and the lower layer of brackets are assembled, a serial tab port passageway is formed between the two brackets through the pressure relief holes.

The utility model also provides a module, which comprises the battery cell 3, the end plate 8, the supporting screw rod 9, the limit nut 10 and the bracket with a plurality of butt joint surfaces which are closely distributed, as shown in figure 5. The battery cell 3 is positioned in the cavity 2. The end plates 8 are arranged at two ends of the module. The supporting screw rod 9 is movably inserted into the first through hole 61 and penetrates through the second through holes respectively formed in the two end plates 8, the limit nut 10 is matched with the supporting screw rod 9, and the limit nut 10 is abutted against the end plates 8.

In use, a plurality of brackets are arranged between the two end plates 8, and the support screw 9 is movably inserted into the first through hole 61 and the second through hole, so that the brackets are supported between the two end plates 8 through the support screw 9. The limit nuts 10 are mounted on the support screws 9 so as to fix a plurality of the brackets between the two end plates 8.

In one embodiment, the module further includes a third clip member 100 and a fourth clip member 110, as shown in fig. 5. The third clamping member 100 and the fourth clamping member 110 are respectively disposed on two opposite surfaces of the end plate 8, where the third clamping member 100 and the fourth clamping member 110 can be engaged with each other, and the third clamping member 100 and the first clamping member 4 are on the same side, and the fourth clamping member 110 and the second clamping member 5 are on the same side.

In one example, the third clamping member 100 includes a plurality of third clamping portions, and the third clamping portions have an E-shaped structure or an i-shaped structure; the fourth clamping member 110 includes a plurality of fourth clamping portions, and the fourth clamping portions have an E-shaped structure or an i-shaped structure.

In another example, when the modules of the upper and lower layers are mounted, the modules may move in a horizontal direction, i.e., in a direction a, as shown in fig. 7. Specifically, during installation, the third clamping member 100 and the fourth clamping member 110 are engaged with each other, the first clamping member 4 and the second clamping member 5 are engaged with each other, so that the installation of the upper layer of module and the lower layer of module is completed, and the installed upper layer of module and the lower layer of module can only move in the horizontal direction and cannot move in the vertical direction; in addition, the first clamping member 4, the second clamping member 5, the third clamping member 100 and the fourth clamping member 110 are combined to form a combined structure, so that a supporting effect can be achieved, specifically, the lower layer of the die is enabled to be balanced in downward pressure through the combined structure, and therefore the situation that only the end plate 8 is stressed in a traditional die set can be effectively avoided.

In one embodiment, the end plate 8 is provided with a hanging through hole (not numbered) at a side remote from the abutment surface of the bracket. Preferably, the number of the hanging through holes is two. The setting of hanging the through-hole can be through external instrument will the module lifts up, both can like this last two in the module installation reaches labour saving and time saving, the effect of being convenient for control, the while is convenient for again to the below the maintenance of module.

The utility model also provides a battery pack, which comprises a shell and a plurality of modules stacked in the vertical direction; wherein, the two adjacent modules are assembled in the vertical direction by the engagement of the first clamping member 4 and the second clamping member 5 and the engagement of the third clamping member 100 and the fourth clamping member 110, as shown in fig. 6; the battery pack further comprises a fixing member 130, as shown in fig. 6, the fixing member 130 is inserted into a mounting hole 120 formed in the vertical direction of the end plate 8, so as to fix the module in the housing.

Preferably, the fixing member 130 may be a fixing screw. Specifically, the mounting holes 120 are provided therein with fixing screws for fixing the module to mounting beams (not shown) in the housing. Simultaneously, the fixed screw can also play the effect of adjustment position for upper and lower two the module is in order in vertical direction. Specifically, through set screw can be with upper and lower two end plate 8 is neatly arranged to be in same vertical direction, like this through right the position adjustment of end plate 8 can be with the module carries out position adjustment in vertical direction, makes the module is neatly arranged in vertical direction, avoids upper and lower two when the module takes place the dislocation, the problem of the uneven atress of end plate 8 that brings, and occupation casing interior installation space.

The bracket provided by the utility model has the advantages of light weight and high structural strength, and can protect the periphery of a single battery cell 3 when a battery system is impacted, so that the risk of fire caused by extrusion of the battery cell 3 is reduced.

The bracket has reasonable structural design, can freely adjust the number of the brackets according to actual demands, namely the number of the series-parallel connection battery cells 3 can be adjusted, and the method is flexible and convenient.

The first clamping piece 4 and the second clamping piece 5 are meshed with each other, so that the multi-layer bracket can be assembled in the vertical direction, the contact area can be increased, the strength of the mounting structure is improved, the supporting force can be dispersed, and the structural strength of the whole bracket is improved. The bracket can also be used for protecting the battery cell 3.

In the utility model, when the upper module and the lower module are assembled, the first clamping piece 4, the second clamping piece 5, the third clamping piece 100 and the fourth clamping piece 110 are meshed with each other, so that the installation and the fixation can be finished, and the tightening is not needed, thereby reducing the assembly time and improving the production efficiency.

While embodiments of the present utility model have been described in detail hereinabove, it will be apparent to those skilled in the art that various modifications and variations can be made to these embodiments. It is to be understood that such modifications and variations are within the scope and spirit of the present utility model as set forth in the following claims. Moreover, the utility model described herein is capable of other embodiments and of being practiced or of being carried out in various ways.

Claims (10)

1. The bracket is used for installing the battery cell and is characterized by comprising a bracket body provided with a cavity, a first clamping piece arranged on a first surface of the bracket body and a second clamping piece arranged on a second surface of the bracket body; the first surface and the second surface are oppositely arranged on the bracket body, and the first clamping piece and the second clamping piece can be meshed with each other.

2. The bracket of claim 1, wherein the bracket body comprises a first frame body and a second frame body, the first frame body and the second frame body are arranged opposite to each other, and one side of the first frame body and one side of the second frame body, which are close to each other, jointly define the cavity.

3. The bracket according to claim 2, wherein the first and second clamping members are provided on opposite sides of the first frame body; the opposite surfaces of the second frame body are respectively provided with the first clamping piece and the second clamping piece.

4. The bracket of claim 1, wherein the first clamping member comprises a plurality of first clamping portions, the first clamping portions being of an E-shaped structure or an i-shaped structure; the second clamping piece comprises a plurality of second clamping parts, and the second clamping parts are of E-shaped structures or I-shaped structures.

5. The bracket according to any one of claims 1-4, wherein a fixing lug is provided on the bracket body, and a first through hole is provided on the fixing lug.

6. The bracket of claim 2, wherein the first frame body and/or the second frame body is provided with a lightening hole.

7. The carrier in accordance with claim 1, wherein the cavity comprises a first chamber and a second chamber, the first chamber and the second chamber being disposed on opposite sides of the carrier body.

8. A module comprising a cell, an end plate, a support screw, and a stop nut, and a plurality of the brackets of any one of claims 1-7 having abutting surfaces;

the battery cell is positioned in the cavity;

the end plates are arranged at two ends of the module;

the support screw is movably inserted in the first through holes and penetrates through the second through holes respectively formed in the two end plates, the limit nuts are matched with the support screw, and the limit nuts are abutted against the end plates.

9. The module of claim 8, further comprising a third clip and a fourth clip;

the third clamping piece and the fourth clamping piece are respectively arranged on two opposite surfaces of the end plate, wherein the third clamping piece and the fourth clamping piece can be meshed with each other, the third clamping piece is on the same side as the first clamping piece, and the fourth clamping piece is on the same side as the second clamping piece.

10. A battery pack comprising a case, and a plurality of modules according to claim 9 stacked in a vertical direction; the upper and lower adjacent modules are assembled in the vertical direction through the engagement of the first clamping piece and the second clamping piece and the engagement of the third clamping piece and the fourth clamping piece;

the battery pack further comprises a fixing piece, wherein the fixing piece is inserted into a mounting hole formed in the vertical direction of the end plate, so that the module is fixed in the shell.

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