CN220290896U - Battery core fixing mechanism and battery module - Google Patents

Abstract

The application provides a battery cell fixing mechanism, wherein a first boss component is provided with a first heat dissipation gap, a first plug hole and a second plug hole, a second boss component is provided with a second heat dissipation gap, a first plug channel and a second plug channel, and a plurality of second battery cell mounting grooves are formed on one side of a second base, which is close to the second boss component; each first cell mounting groove and the corresponding second cell mounting groove are commonly used for mounting and fixing two ends of a cell unit; the first radiating gap is communicated with the second radiating gap to form a radiating channel, the first plug hole is communicated with the first plug channel, and the second plug hole is communicated with the second plug channel; the fixed subassembly is formed with the installation clearance, and fixed subassembly wears to locate first spliced eye and first grafting passageway in proper order, and fixed subassembly still wears to locate second spliced eye and second grafting passageway in proper order, and fixed subassembly's both ends are connected in first base and second base respectively. The battery cell fixing mechanism can improve the heat dissipation effect on the battery cells.

Description

Battery core fixing mechanism and battery module

Technical Field

The utility model relates to the technical field of power batteries, in particular to a battery core fixing mechanism and a battery module.

Background

The cylindrical battery cell is generally fixedly installed by using a battery cell bracket, the bracket is divided into an upper part and a lower part, a round hole is formed in the bracket for placing the battery cell, and the battery cell is fixed inside the bracket by clamping the upper bracket and the lower bracket. The inside of the bracket generally needs to use a pull rod to lock the upper bracket and the lower bracket so as to strengthen the fixation of the battery cell. The pull rod is generally designed into a cylindrical shape, holes are formed in the pull rod, and the upper bracket and the lower bracket are locked through bolts.

Although the fixing effect of the pull rod on the cylindrical battery cell is good, when the fan is adopted to radiate the cylindrical battery cell, the pull rod seriously blocks the circulation of air, so that the radiating effect of the cylindrical battery cell is poor.

For example, patent publication No. CN107039615a discloses a lithium ion battery module, through holes corresponding to the pull rod holes on each lithium ion battery module unit are provided on the side pressing plate, the pull rod sequentially passes through the pull rod holes on each lithium ion battery module unit and the through holes on the side pressing plate, two ends of the pull rod are tensioned by an anchor, two adjacent rows of battery cell fixing slots in the same section are staggered with each other, and the pull rod holes are positioned between the battery cell fixing slots in two adjacent sections and staggered with the two adjacent rows of battery cell fixing slots between the two sections. Although the fixing effect of the pull rod on the battery cells is good, the pull rod is positioned between the battery cell fixing grooves of two adjacent sections, namely, the pull rod is positioned between the two adjacent battery cells, and when the battery is subjected to heat dissipation, the pull rod seriously blocks the circulation of air, so that the heat dissipation effect of the battery cells is poor.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provides a battery cell fixing mechanism and a battery module, wherein the battery cell fixing mechanism is used for improving the heat dissipation effect on a battery cell.

The aim of the utility model is realized by the following technical scheme:

the battery cell fixing mechanism comprises a bracket assembly, wherein the bracket assembly comprises a first bracket and a second bracket, and is characterized in that the first bracket comprises a first boss assembly and a first base which are connected, a first heat dissipation gap, a first plug hole and a second plug hole are formed in the first boss assembly, a plurality of first battery cell mounting grooves are formed in one side, close to the first boss assembly, of the first base, the second bracket comprises a second boss assembly and a second base which are connected, a second heat dissipation gap, a first plug channel and a second plug channel are formed in the second boss assembly, and a plurality of second battery cell mounting grooves are formed in one side, close to the second boss assembly, of the second base; each first cell mounting groove and the corresponding second cell mounting groove are commonly used for mounting and fixing two ends of a cell unit;

the first heat dissipation gap is communicated with the second heat dissipation gap to form a heat dissipation channel, the first plug hole is communicated with the first plug channel, and the second plug hole is communicated with the second plug channel;

the battery cell fixing mechanism further comprises a fixing assembly, the fixing assembly is provided with an installation gap, the fixing assembly sequentially penetrates through the first plug hole and the first plug channel, the fixing assembly sequentially penetrates through the second plug hole and the second plug channel, and two ends of the fixing assembly are respectively connected with the first base and the second base.

In one embodiment, the securing assembly includes a locking pin and a resilient catch;

the lock pin comprises a first lock plate, a second lock plate and a connecting end, wherein the first lock plate and the second lock plate are arranged on the same side of the connecting end, the first lock plate and the second lock plate are connected to the connecting end, an installation gap is formed by connecting the first lock plate, the second lock plate and the connecting end, and part of the first boss component and part of the second boss component are movably arranged in the installation gap;

the first locking plate is sequentially arranged in the first inserting hole in a penetrating mode, the first inserting channel is arranged in the elastic lock catch, the second locking plate is sequentially arranged in the second inserting hole in a penetrating mode, the second inserting channel is arranged in the elastic lock catch, the connecting end is movably abutted to one side, deviating from the first base, of the second base, and the elastic lock catch is movably connected to one side, deviating from the second base, of the first base.

In one embodiment, the elastic lock catch is formed with a first lock hole and a second lock hole, wherein the inner peripheral wall of the first lock hole is movably clamped to the first lock plate, and the inner peripheral wall of the second lock hole is movably clamped to the second lock plate.

In one embodiment, the first locking tab, the second locking tab and the connecting end are integrally formed.

In one embodiment, the plane of the first locking piece in the width direction intersects the plane of the second locking piece in the width direction.

In one embodiment, the first locking plate is provided with a first protruding portion, and the first protruding portion is movably connected to the peripheral wall of the first locking hole;

the second locking plate is provided with a second protruding portion, and the second protruding portion is movably connected to the peripheral wall of the second locking hole.

In one embodiment, the elastic lock catch is provided with a first notch and a second notch, the first notch is communicated with the first lock hole, and the second notch is communicated with the second lock hole.

In one embodiment, the elastic lock catch includes a first elastic locking portion, a second elastic locking portion and an elastic pre-tightening portion, wherein the elastic pre-tightening portion is disposed between the first elastic locking portion and the second elastic locking portion, and the elastic pre-tightening portion avoids the first notch, the second notch, the first lock hole and the second lock hole.

In one embodiment, the first elastic locking portion includes a first elastic locking body, a first elastic cantilever and a second elastic cantilever, the first elastic cantilever and the second elastic cantilever are respectively disposed on two opposite sides of the first elastic locking body, the first elastic cantilever and the second elastic cantilever are respectively connected to the first elastic locking body, the first notch is formed between the first elastic cantilever and the second elastic cantilever, and the first lock hole is formed in the first elastic locking portion surrounded by the first elastic cantilever, the first elastic locking body and the second elastic cantilever;

the second elastic locking part comprises a second elastic locking main body, a third elastic cantilever and a fourth elastic cantilever, wherein the third elastic cantilever and the fourth elastic cantilever are respectively arranged on two opposite sides of the second elastic locking main body, the third elastic cantilever and the fourth elastic cantilever are respectively connected with the second elastic locking main body, a second notch is formed between the third elastic cantilever and the fourth elastic cantilever, and a second lock hole is formed in the second elastic locking part formed by encircling the third elastic cantilever, the second elastic locking main body and the fourth elastic cantilever.

In one embodiment, the inner peripheral wall of the first elastic cantilever is provided with a first positioning flange and is connected with the first positioning flange, and the inner peripheral wall of the second elastic cantilever is provided with a second positioning flange and is connected with the second positioning flange;

the inner peripheral wall of the third elastic cantilever is provided with a third positioning flange and is connected with the third positioning flange, and the inner peripheral wall of the fourth elastic cantilever is provided with a fourth positioning flange and is connected with the fourth positioning flange.

A battery module comprises a battery cell monomer and the battery cell fixing mechanism in any embodiment, wherein two ends of the battery cell monomer are respectively arranged in a corresponding first battery cell mounting groove and a corresponding second battery cell mounting groove.

Compared with the prior art, the utility model has at least the following advantages:

1) According to the fixing assembly, the first boss assembly is provided with the first heat dissipation gap, the second boss assembly is provided with the second heat dissipation gap, and the first heat dissipation gap is communicated with the second heat dissipation gap to form the heat dissipation channel, so that heat dissipation airflow better passes through the heat dissipation channel to take away heat emitted by the battery cells, the problem that a traditional battery cell fixing mechanism blocks gaps among the battery cells and is difficult to dissipate heat is well solved, and the heat dissipation effect of the battery module on the battery cells is ensured.

2) According to the fixing assembly, the fixing assembly sequentially penetrates through the first inserting hole and the first inserting channel, the fixing assembly sequentially penetrates through the second inserting hole and the second inserting channel, two ends of the fixing assembly are respectively connected to the first base and the second base, namely, the fixing assembly sequentially penetrates through the first support and the second support, namely, the fixing assembly plays a role in fixing the support assembly, and structural stability of the battery cell fixing mechanism is guaranteed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a cell fixing mechanism according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a cell fixing mechanism according to another embodiment of the present utility model;

FIG. 3 is an enlarged view of a portion of the cell fixing mechanism shown in FIG. 2 at A;

fig. 4 is a schematic structural view of a cell fixing mechanism according to another embodiment of the present utility model;

fig. 5 is an enlarged view of a portion of the cell fixing mechanism shown in fig. 4 at B;

fig. 6 is a schematic structural view of a cell fixing mechanism according to another embodiment of the present utility model;

fig. 7 is an enlarged view of a portion of the cell fixing mechanism at C shown in fig. 6;

fig. 8 is a schematic structural view of a cell fixing mechanism according to still another embodiment of the present utility model;

fig. 9 is a schematic structural view of a cell fixing mechanism according to another embodiment of the present utility model;

fig. 10 is an enlarged view of a portion of the cell fixing mechanism shown in fig. 9 at D;

FIG. 11 is a partial schematic view of the cell fixing mechanism of FIG. 1;

FIG. 12 is a partial schematic view of the cell fixing mechanism of FIG. 1 from another perspective;

FIG. 13 is a partial schematic view of the cell retention mechanism of FIG. 1;

fig. 14 is a cross-sectional view of a cell fixing mechanism according to another embodiment of the present utility model.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to fig. 8, fig. 11, and fig. 14 together, a battery cell fixing mechanism 10 according to an embodiment includes a bracket assembly 20, where the bracket assembly 20 includes a first bracket 100 and a second bracket 200, the first bracket 100 includes a first boss assembly 110 and a first base 120 that are connected, the first boss assembly 110 is formed with a first heat dissipation gap 102, a first plug hole 103, and a second plug hole 104, a side of the first base 120, which is close to the first boss assembly 110, is formed with a plurality of first battery cell mounting slots 105, the second bracket 200 includes a second boss assembly 210 and a second base 220 that are connected, the second boss assembly 210 is formed with a second heat dissipation gap 201, a first plug channel 202, and a second plug channel 203, and a side of the second base 220, which is close to the second boss assembly 210, is formed with a plurality of second battery cell mounting slots 204; each first cell mounting groove 105 and the corresponding second cell mounting groove 204 are commonly used for mounting and fixing two ends of a cell unit; the first heat dissipation gap 102 and the second heat dissipation gap 201 are communicated to form a heat dissipation channel 101, the first plug hole 103 is communicated with a first plug channel 202, and the second plug hole 104 is communicated with a second plug channel 203.

The fixing assembly 30, the first boss assembly 110 is formed with the first heat dissipation gap 102, the second boss assembly 210 is formed with the second heat dissipation gap 201, the first heat dissipation gap 102 and the second heat dissipation gap 201 are communicated to form the heat dissipation channel 101, so that heat dissipation air flow better passes through the heat dissipation channel 101 to take away heat emitted by the battery cells, the problem that gaps among the battery cells are blocked and difficult to dissipate heat by the traditional battery cell fixing mechanism 10 is well solved, and the heat dissipation effect of the battery module to the battery cells is ensured. In addition, the fixing component 30 sequentially penetrates through the first inserting hole 103 and the first inserting channel 202, the fixing component 30 sequentially penetrates through the second inserting hole 104 and the second inserting channel 203, two ends of the fixing component 30 are respectively connected to the first base 120 and the second base 220, that is, the fixing component 30 sequentially penetrates through the first bracket 100 and the second bracket 200, that is, the fixing component 30 plays a fixing role on the bracket component 20, and the structural stability of the cell fixing mechanism 10 is ensured.

Referring to fig. 2-5 and 12, in one embodiment, the fixing assembly 30 includes a lock pin 300 and a resilient latch 400; the lock pin 300 comprises a first lock plate 310, a second lock plate 320 and a connecting end 330, wherein the first lock plate 310 and the second lock plate 320 are arranged on the same side of the connecting end 330, the first lock plate 310 and the second lock plate 320 are connected to the connecting end 330, a mounting gap 301 is formed by connecting the first lock plate 310, the second lock plate 320 and the connecting end 330, and part of the first boss assembly 110 and part of the second boss assembly 210 are movably arranged in the mounting gap 301; the first locking plate 310 sequentially penetrates through the first inserting hole 103, the first inserting channel 202 and the elastic lock catch 400, the second locking plate 320 sequentially penetrates through the second inserting hole 104, the second inserting channel 203 and the elastic lock catch 400, the connecting end 330 movably abuts against one side, deviating from the first base 120, of the second base 220, and the elastic lock catch 400 is movably connected to one side, deviating from the second base 220, of the first base 120. It can be understood that the first locking piece 310 sequentially penetrates through the first inserting hole 103, the first inserting channel 202 and the elastic lock catch, the second locking piece 320 sequentially penetrates through the second inserting hole 104, the second inserting channel 203 and the elastic lock catch, and the connecting end 330 abuts against the second base 220, so that the connection stability of the locking pin 300, the elastic lock catch 400 and the bracket assembly 20 is ensured, and the structural stability of the battery cell fixing mechanism 10 is ensured.

In one embodiment, the elastic lock catch is formed with a first lock hole and a second lock hole, wherein the inner peripheral wall of the first lock hole is movably clamped in the first lock plate, and the inner peripheral wall of the second lock hole is movably clamped in the second lock plate. It can be understood that the first locking plate 310 sequentially penetrates through the first inserting hole 103, the first inserting channel 202 and the first locking hole 401, the second locking plate 320 sequentially penetrates through the second inserting hole 104, the second inserting channel 203 and the second locking hole 403, and the connecting end 330 abuts against the second base 220, so that the connection stability of the locking pin 300, the elastic lock catch 400 and the bracket assembly 20 is ensured, the inner peripheral wall of the first locking hole 401 is movably clamped to the first locking plate 310, the inner peripheral wall of the second locking hole 403 is movably clamped to the second locking plate 320, the elastic lock catch 400 is clamped to the locking pin 300, the structural stability of the battery cell fixing mechanism 10 is ensured, the traditional bolt connection mode is replaced, the installation efficiency is improved, no tools are needed, and the installation convenience is improved.

Referring to fig. 12, in one embodiment, the first locking piece 310, the second locking piece 320 and the connecting end 330 are integrally formed. It will be appreciated that the structural stability of the locking pin 300 is improved, thereby improving the service life of the securing assembly 30.

Referring to fig. 11 to 12, in one embodiment, a plane of the first locking piece 310 in the width direction intersects a plane of the second locking piece 320 in the width direction. It can be appreciated that the rigidity of the fixing assembly 30 is improved, so that the fixing assembly 30 is not easily broken, and the service life of the fixing assembly 30 is ensured.

Referring to fig. 9 to 10, in one embodiment, the first locking piece 310 is provided with a first protruding portion 311, and the first protruding portion 311 is movably connected to the peripheral wall of the first locking hole 401; the second locking piece 320 is provided with a second protruding portion 321, and the second protruding portion 321 is movably connected to the peripheral wall of the second locking hole 403. It can be understood that the elastic lock catch 400 has better elasticity, when the first protruding portion 311 passes through the first lock hole 401, the elastic lock catch 400 elastically deforms to enable the first protruding portion 311 to pass through, and after the first protruding portion 311 passes through the first lock hole 401, the first protruding portion 311 is connected to the peripheral wall of the first lock hole 401, so that the connection stability of the first protruding portion 311 and the elastic lock catch 400 is ensured; similarly, the second protruding portion 321 is elastically deformed by the elastic lock catch 400 when passing through the second lock hole 403, so that the second protruding portion 321 passes through the second lock hole 403, and after the second protruding portion 321 passes through the second lock hole 403, the second protruding portion 321 is connected to the peripheral wall of the second lock hole 403, so as to ensure connection stability between the second protruding portion 321 and the elastic lock catch 400.

Referring to fig. 2 to fig. 5, in one embodiment, the elastic lock 400 is provided with a first notch 402 and a second notch 404, the first notch 402 is communicated with the first lock hole 401, and the second notch 404 is communicated with the second lock hole 403. It can be appreciated that the elastic lock catch 400 can generate larger elastic deformation at the first notch 402, so that the first lock piece 310 is easier to pass through the first lock hole 401, that is, the installation convenience and the disassembly convenience of the fixing component 30 are improved, and the elastic lock catch 400 is not easy to break, and likewise, the elastic lock catch 400 can generate larger elastic deformation at the second notch 404, so that the second lock piece 320 is easier to pass through the second lock hole 403, that is, the installation convenience and the disassembly convenience of the fixing component 30 are improved, and the elastic lock catch 400 is not easy to break, that is, the use convenience and the service life of the fixing component 30 are ensured at the same time.

Referring to fig. 2 to 5 and fig. 13 together, in one embodiment, the elastic lock catch 400 includes a first elastic locking portion 410, a second elastic locking portion 420 and an elastic pre-tightening portion 430, the elastic pre-tightening portion 430 is disposed between the first elastic locking portion 410 and the second elastic locking portion 420, and the elastic pre-tightening portion 430 is disposed avoiding the first notch 402, the second notch 404, the first lock hole 401 and the second lock hole 403. It can be appreciated that the first elastic locking portion 410 needs to generate a larger elastic deformation when the first locking piece 310 is assembled or disassembled, and similarly, the second elastic locking portion 420 needs to generate a larger elastic deformation when the second locking piece 320 is assembled or disassembled, the elastic pre-tightening portion 430 can provide a pre-tightening force to the first elastic locking portion 410 and the second elastic locking portion 420, so as to improve the service life of the elastic lock catch 400, and the elastic pre-tightening portion 430 avoids the first notch 402, the second notch 404, the first lock hole 401 and the second lock hole 403, so that the elastic deformation of the first elastic locking portion 410 and the second elastic locking portion 420 is not hindered, and the fixing effect of the elastic lock catch 400 to the lock pin 300 is ensured.

Referring to fig. 1 and 13 together, in one embodiment, the first elastic locking portion 410 includes a first elastic locking body 411, a first elastic cantilever 412 and a second elastic cantilever 413, the first elastic cantilever 412 and the second elastic cantilever 413 are respectively disposed at opposite sides of the first elastic locking body 411, the first elastic cantilever 412 and the second elastic cantilever 413 are respectively connected to the first elastic locking body 411, the first notch 402 is formed between the first elastic cantilever 412 and the second elastic cantilever 413, and the first lock hole 401 is formed in the first elastic locking portion 410 surrounded by the first elastic locking body 411, the first elastic cantilever 412 and the second elastic cantilever 413; the second elastic locking portion 420 includes a second elastic locking body 421, a third elastic cantilever 422 and a fourth elastic cantilever 423, where the third elastic cantilever 422 and the fourth elastic cantilever 423 are respectively disposed on two opposite sides of the second elastic locking body 421, the third elastic cantilever 422 and the fourth elastic cantilever 423 are respectively connected to the second elastic locking body 421, the second notch 404 is formed between the third elastic cantilever 422 and the fourth elastic cantilever 423, and the second lock hole 403 is formed in the second elastic locking portion 420 surrounded by the second elastic locking body 421, the third elastic cantilever 422 and the fourth elastic cantilever 423. It can be appreciated that the first elastic cantilever 412 has a higher pretightening force and elastic deformation capability, the second elastic cantilever 413 also has a higher pretightening force and elastic deformation capability, and the first notch 402 is formed between the first elastic cantilever 412 and the second elastic cantilever 413, so that the sizes of the first elastic cantilever 412, the first elastic locking body 411 and the second elastic cantilever 413 surrounding the first locking hole 401 can be changed greatly through elastic deformation, and the first locking piece 310 can pass through the first locking hole, thereby improving the installation convenience of the fixing assembly 30, being not easy to break, and improving the service life of the fixing assembly 30; similarly, the third elastic cantilever 422 has higher pretightening force and elastic deformation capability, the fourth elastic cantilever 423 also has higher pretightening force and elastic deformation capability, and the second notch 404 is formed between the third elastic cantilever 422 and the fourth elastic cantilever 423, so that the size of the second lock hole 403 surrounded by the third elastic cantilever 422, the second elastic locking body 421 and the fourth elastic cantilever 423 can be changed greatly through elastic deformation, and the second lock piece 320 can pass through the second lock hole sufficiently, thereby improving the installation convenience of the fixing component 30, being not easy to break, and improving the service life of the fixing component 30.

Referring to fig. 1 to 3, in one embodiment, the inner peripheral wall of the first elastic cantilever 412 is provided with a first positioning flange and is connected to the first positioning flange, and the inner peripheral wall of the second elastic cantilever 413 is provided with a second positioning flange and is connected to the second positioning flange; the inner peripheral wall of the third elastic cantilever 422 is provided with a third positioning flange 4221 and is connected to the third positioning flange 4221, and the inner peripheral wall of the fourth elastic cantilever 423 is provided with a fourth positioning flange 4231 and is connected to the fourth positioning flange 4231. It can be appreciated that, after the first locking piece 310 is mounted in the first locking hole 401, the first positioning flange and the second positioning flange perform a further fixing function on the first locking piece 310, so as to ensure the structural stability of the fixing assembly 30; likewise, after the second locking piece 320 is mounted in the second locking hole 403, the third positioning flange 4221 and the fourth positioning flange 4231 perform a further fixing function on the second locking piece 320, so as to ensure structural stability of the fixing assembly 30.

Referring to fig. 6 to fig. 7 together, the first boss assembly 110 includes a first boss 111 and a second boss 112, the first boss 111 and the second boss 112 are disposed on the same side of the first base 120 and are connected to the first base 120, the first plugging hole 103 is formed in the first boss 111, the second plugging hole 104 is formed in the second boss 112, and the first heat dissipation gap 102 is formed between the first boss 111 and the second boss 112; the second boss assembly 210 includes a third boss 211 and a fourth boss 212, the third boss 211 and the fourth boss 212 are disposed on the same side of the second base 220 and connected to the second base 220, the first plugging channel 202 is formed on the third boss 211, the second plugging channel 203 is formed on the fourth boss 212, and the second heat dissipation gap 201 is formed between the third boss 211 and the fourth boss 212; the first boss 111 and the third boss 211 are located on the same side of the heat dissipation channel 101, the first boss 111 is movably connected with the third boss 211, the second boss 112 and the fourth boss 212 are located on the other side of the heat dissipation channel 101, and the second boss 112 is movably connected with the fourth boss 212. It can be understood that the first heat dissipation gap 102 is formed between the first boss 111 and the second boss 112, the second heat dissipation gap 201 is formed between the third boss 211 and the fourth boss 212, the first heat dissipation gap 102 and the second heat dissipation gap 201 are communicated to form the heat dissipation channel 101, when the heat dissipation fan is arranged at a preset angle, the heat dissipation channel 101 is used for taking away the heat emitted by the battery cell 40 due to the wind generated by the heat dissipation fan, so that the problem that the traditional battery cell fixing mechanism 10 blocks the gap between the battery cells 40 and is difficult to dissipate heat is better solved, the heat dissipation effect of the battery module to the battery cell 40 is ensured, the first boss 111 is movably connected with the third boss 211, the second boss 112 is movably connected with the fourth boss 212, namely the first bracket 100 is movably connected with the second bracket 200, and the replacement and the maintenance are convenient, that is, the convenience of use of the battery cell fixing mechanism 10 is improved, and the first locking plate 310 sequentially penetrates through the first inserting hole 103, the first inserting channel 202 and the first locking hole 401, the second locking plate 320 sequentially penetrates through the second inserting hole 104, the second inserting channel 203 and the second locking hole 403, the connecting end 330 abuts against the second base 220, the connection stability of the locking pin 300, the elastic lock catch 400 and the bracket assembly 20 is ensured, the inner peripheral wall of the first locking hole 401 is movably clamped to the first locking plate 310, and the inner peripheral wall of the second locking hole 403 is movably clamped to the second locking plate 320, so that the elastic lock catch 400 is clamped to the locking pin 300, the structural stability of the battery cell fixing mechanism 10 is ensured, the traditional bolt connection mode is replaced, the installation efficiency is improved, no tools are needed, and the installation convenience is improved.

Referring to fig. 1 and 8, the present application further provides a battery module, including a battery cell unit 40 and the battery cell fixing mechanism 10 according to any of the foregoing embodiments, wherein two ends of the battery cell unit are respectively disposed in the corresponding first battery cell mounting groove 105 and the corresponding second battery cell mounting groove 204.

The above battery module can be understood that the air outlet end of the cooling fan is arranged towards the cooling channel 101, and the air generated by the cooling fan passes through the cooling channel 101 to take away the heat emitted by the battery cells 40, so that the problem that the traditional battery cell fixing mechanism 10 blocks the gaps between the battery cells 40 and is difficult to dissipate heat is well solved, and the cooling effect of the battery module on the battery cells 40 is ensured; in addition, the first locking plate 310 sequentially penetrates through the first inserting hole 103, the first inserting channel 202 and the first locking hole 401, the second locking plate 320 sequentially penetrates through the second inserting hole 104, the second inserting channel 203 and the second locking hole 403, the connecting end 330 is abutted to the second base 220, connection stability of the locking pin 300, the elastic lock catch 400 and the bracket assembly 20 is guaranteed, the inner peripheral wall of the first locking hole 401 is movably clamped to the first locking plate 310, the inner peripheral wall of the second locking hole 403 is movably clamped to the second locking plate 320, the elastic lock catch 400 is clamped to the locking pin 300, structural stability of the battery cell fixing mechanism 10 is guaranteed, a traditional bolt connecting mode is replaced, installation efficiency is improved, tools are not needed, and installation convenience is improved.

Referring to fig. 2 to 5, the number of the first bosses 111 is plural, the number of the second bosses 112 is plural, the number of the third bosses 211 is plural, the number of the fourth bosses 212 is plural, the number of the locking pins 300 is plural, the number of the elastic locking catches 400 is plural, the first locking tab 310 of each locking pin 300 sequentially penetrates through the corresponding first plugging channel 202, the first plugging hole 103 and the first locking hole 401, the second locking tab 320 of each locking pin 300 sequentially penetrates through the corresponding second plugging channel 203, the second plugging hole 104 and the second locking hole 403, and the opening directions of the heat dissipation channels 101 of each locking pin 300 are the same, so that the structural stability of the cell fixing mechanism 10 is improved.

Referring to fig. 13, the first elastic cantilever 412 includes a first supporting arm and a first bending arm, and an included angle between the first supporting arm and the first bending arm is a first obtuse angle. It can be appreciated that the first support arm and the first bending arm are not easily broken, so as to ensure the service life of the fixing assembly 30.

Referring to fig. 13, the second elastic cantilever 413 includes a second supporting arm and a second bending arm, where an included angle between the second supporting arm and the second bending arm is a second obtuse angle. It can be appreciated that the second support arm and the second bending arm are not easily broken, so as to ensure the service life of the fixing assembly 30.

Referring to fig. 13, the third elastic cantilever 422 includes a third supporting arm and a third bending arm, and an included angle between the third supporting arm and the third bending arm is a third obtuse angle. It can be appreciated that the third supporting arm and the third bending arm are not easily broken, so as to ensure the service life of the fixing assembly 30.

Referring to fig. 13, the fourth elastic cantilever 423 includes a fourth supporting arm and a fourth bending arm, and an included angle between the fourth supporting arm and the fourth bending arm is a fourth obtuse angle. It can be appreciated that the fourth support arm and the fourth bending arm are not easily broken, so as to ensure the service life of the fixing assembly 30.

Referring to fig. 13, the inner peripheral wall of the first elastic locking body 411 is a first concave surface. It can be appreciated that the first locking hole 401 is made larger, so that the installation is convenient, and the first concave surface has an arc structure, so that the stress of the elastic lock catch 400 is improved, and the breakage of the elastic lock catch 400 is reduced.

Referring to fig. 13, the inner circumferential wall of the second elastic locking body 421 is a second concave surface. It can be appreciated that the second locking hole 403 is made larger, so that the installation is facilitated, and the second concave surface has an arc structure, so that the stress of the elastic lock catch 400 is improved, and the breakage of the elastic lock catch 400 is reduced.

Referring to fig. 13, the first bending arm is a first arc bending arm. It can be appreciated that the arc-shaped structure of the first arc-shaped bending arm improves the stress of the elastic lock catch 400 and reduces the breakage of the elastic lock catch 400.

Referring to fig. 13, the second bending arm is a second arc bending arm. It can be appreciated that the arc-shaped structure of the second arc-shaped bending arm improves the stress of the elastic lock catch 400 and reduces the breakage of the elastic lock catch 400.

Referring to fig. 2 and fig. 11 to fig. 12, the first bracket 100 is provided with a first accommodating groove, the first accommodating groove is respectively communicated with the first plug hole 103, the heat dissipation channel 101 and the second plug hole 104, one end of the first locking piece 310, which is away from the connecting end 330, and one end of the second locking piece 320, which is away from the connecting end 330, are both disposed in the first accommodating groove, and the elastic lock catch 400 is movably disposed in the first accommodating groove. It can be understood that the portion of the first locking piece 310 protruding outside the first jack 103, the portion of the second locking piece 320 protruding outside the second jack 104, and the elastic lock catch 400 are all disposed in the first accommodating groove, that is, the first locking piece 310, the second locking piece 320, and the elastic lock catch 400 cannot block other cell fixing mechanisms 10 stacked above the first base 120, so that stable stacking of the plurality of cell fixing mechanisms 10 is realized.

Referring to fig. 2 and fig. 11 to fig. 12, the second bracket 200 is provided with a second receiving groove, the second receiving groove is respectively connected to the first plugging channel 202, the heat dissipation channel 101 and the second plugging channel 203, and the connection end 330 is movably disposed in the second receiving groove. It can be appreciated that the connection end 330 is disposed in the second receiving groove, and does not block other cell fixing mechanisms 10 disposed under the second base 220, thereby realizing stable stacking of the plurality of cell fixing mechanisms 10.

Referring to fig. 9 to 11, the elastic lock 400 is a spring steel elastic lock 400. It can be appreciated that the elastic steel elastic lock catch 400 has better elasticity, when the lock pin 300 is mounted or dismounted on the elastic steel elastic lock catch 400, larger elastic deformation can be generated, the mounting convenience and the dismounting convenience of the fixing component 30 are improved, the elastic steel elastic lock catch 400 has better resilience force, the elastic steel elastic lock catch 400 can be better restored after elastic deformation is generated, the service life of the fixing component 30 is further ensured, the elastic steel elastic lock catch 400 has better heat conductivity, the elastic steel elastic lock catch 400 is arranged on the outer side of the first base 120, and the heat emitted by the inside of the battery module can be transmitted to the outside of the battery module through the elastic steel elastic lock catch 400.

Referring to fig. 6 to fig. 7, the first boss 111 is a first prismatic boss, and the area of the first prismatic boss near the first base 120 is larger than the area of the first prismatic boss far from the first base 120. It can be appreciated that the space ratio of the first boss assembly 110 in the battery module is reduced, the heat dissipation effect of the battery module is improved, and the structural strength of the first boss 111 is high, so that the first boss is not easy to break.

Referring to fig. 6 to fig. 7, the first boss 111 is a first truncated cone-shaped boss, and an area of a side of the first truncated cone-shaped boss close to the first base 120 is larger than an area of a side of the first truncated cone-shaped boss far from the first base 120. It can be appreciated that the space ratio of the first boss assembly 110 in the battery module is reduced, the heat dissipation effect of the battery module is improved, and the structural strength of the first boss 111 is high, so that the first boss is not easy to break.

Referring to fig. 6 to fig. 7, the second boss 112 is a second prismatic boss, and the area of the second prismatic boss near the first base 120 is larger than the area of the second prismatic boss far from the first base 120. It can be appreciated that the space ratio of the second boss assembly 210 in the battery module is reduced, the heat dissipation effect of the battery module is improved, and the structural strength of the second boss 112 is high, so that the second boss assembly is not easy to break.

Referring to fig. 6 to fig. 7, the second boss 112 is a second truncated cone-shaped boss, and an area of a side of the second truncated cone-shaped boss close to the first base 120 is larger than an area of a side of the second truncated cone-shaped boss far from the first base 120. It can be appreciated that the space ratio of the second boss assembly 210 in the battery module is reduced, the heat dissipation effect of the battery module is improved, and the structural strength of the second boss 112 is high, so that the second boss assembly is not easy to break.

Referring to fig. 6 to 7, the third boss 211 is a third triangular boss, and the area of the third triangular boss near the first base 120 is larger than the area of the third triangular boss far from the first base 120. It can be appreciated that the space ratio of the third boss 211 assembly in the battery module is reduced, the heat dissipation effect of the battery module is improved, and the structural strength of the third boss 211 is high, so that the third boss 211 is not easy to break.

Referring to fig. 6 to fig. 7, the third boss 211 is a third truncated cone-shaped boss, and an area of a side of the third truncated cone-shaped boss close to the first base 120 is larger than an area of a side of the third truncated cone-shaped boss far from the first base 120. It can be appreciated that the space ratio of the third boss 211 assembly in the battery module is reduced, the heat dissipation effect of the battery module is improved, and the structural strength of the third boss 211 is high, so that the third boss 211 is not easy to break.

Referring to fig. 6 to 7, the fourth boss 212 is a fourth prismatic boss, and the area of the side of the fourth prismatic boss close to the first base 120 is larger than the area of the side far from the first base 120. It can be appreciated that the space ratio of the fourth boss 212 assembly in the battery module is reduced, the heat dissipation effect of the battery module is improved, and the structural strength of the fourth boss 212 is high, so that the fourth boss is not easy to break.

Referring to fig. 6 to 7, the fourth boss 212 is a fourth boss with a circular truncated cone shape, and the area of the side of the fourth boss close to the first base 120 is larger than the area of the side far from the first base 120. It can be appreciated that the space ratio of the fourth boss 212 assembly in the battery module is reduced, the heat dissipation effect of the battery module is improved, and the structural strength of the fourth boss 212 is high, so that the fourth boss is not easy to break.

Referring to fig. 6 to fig. 7, the first positioning protrusion is protruded on the elastic lock catch 400, and an included angle formed between the first positioning protrusion and the first elastic cantilever 412 is an obtuse angle. It can be appreciated that the first locking plate 310 moves upwards during installation, and the first positioning protrusion is disposed obliquely upwards to facilitate the installation of the first locking plate 310, so that the installation convenience of the cell fixing mechanism 10 is improved, and after the installation is completed, the first positioning protrusion disposed obliquely upwards abuts against the first protruding portion 311 of the first locking plate 310, that is, a better positioning effect is generated on the first locking plate 310, that is, the phenomenon that the locking pin 300 is separated from the elastic lock catch 400 is better reduced.

Referring to fig. 6 to fig. 7, the second positioning protrusion is protruded on the elastic lock catch 400, and an included angle formed between the second positioning protrusion and the second elastic cantilever 413 is an obtuse angle. It can be appreciated that the second locking plate 320 moves upwards during installation, and the second positioning protrusion is disposed obliquely upwards to facilitate the installation of the second locking plate 320, so that the installation convenience of the cell fixing mechanism 10 is improved, and after the installation is completed, the second positioning protrusion disposed obliquely upwards abuts against the second protrusion 321 of the second locking plate 320, that is, a better positioning effect is generated on the second locking plate 320, that is, the phenomenon that the locking pin 300 is separated from the elastic lock catch 400 is better reduced.

Referring to fig. 12, in one embodiment, the lock pin 300 is a U-shaped lock pin, the connecting end 330 is located at an arc end of the U-shaped lock pin, and the first locking piece 310 and the second locking piece 320 are formed on opposite sides of the arc end and connected to the arc end.

Compared with the prior art, the utility model has at least the following advantages:

1) According to the fixing assembly 30 disclosed by the utility model, the first boss assembly 110 is provided with the first heat dissipation gap 102, the second boss assembly 210 is provided with the second heat dissipation gap 201, and the first heat dissipation gap 102 and the second heat dissipation gap 201 are communicated to form the heat dissipation channel 101, so that heat dissipation airflow better passes through the heat dissipation channel 101 to take away heat emitted by the battery cells, the problem that the traditional battery cell fixing mechanism 10 is difficult to dissipate heat due to blocking of gaps between the battery cells is well solved, and the heat dissipation effect of the battery module on the battery cells is ensured.

2) According to the fixing assembly 30 disclosed by the utility model, the fixing assembly 30 sequentially penetrates through the first plug hole 103 and the first plug channel 202, the fixing assembly 30 also sequentially penetrates through the second plug hole 104 and the second plug channel 203, two ends of the fixing assembly 30 are respectively connected with the first base 120 and the second base 220, namely, the fixing assembly 30 sequentially penetrates through the first bracket 100 and the second bracket 200, namely, the fixing assembly 30 plays a role in fixing the bracket assembly 20, and the structural stability of the battery cell fixing mechanism 10 is ensured.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The battery cell fixing mechanism comprises a bracket assembly, wherein the bracket assembly comprises a first bracket and a second bracket, and is characterized in that the first bracket comprises a first boss assembly and a first base which are connected, a first heat dissipation gap, a first plug hole and a second plug hole are formed in the first boss assembly, a plurality of first battery cell mounting grooves are formed in one side, close to the first boss assembly, of the first base, the second bracket comprises a second boss assembly and a second base which are connected, a second heat dissipation gap, a first plug channel and a second plug channel are formed in the second boss assembly, and a plurality of second battery cell mounting grooves are formed in one side, close to the second boss assembly, of the second base; each first cell mounting groove and the corresponding second cell mounting groove are commonly used for mounting and fixing two ends of a cell unit;

the first heat dissipation gap is communicated with the second heat dissipation gap to form a heat dissipation channel, the first plug hole is communicated with the first plug channel, and the second plug hole is communicated with the second plug channel;

the battery cell fixing mechanism further comprises a fixing assembly, the fixing assembly is provided with an installation gap, the fixing assembly sequentially penetrates through the first plug hole and the first plug channel, the fixing assembly sequentially penetrates through the second plug hole and the second plug channel, and two ends of the fixing assembly are respectively connected with the first base and the second base.

2. The cell fixation mechanism of claim 1, wherein the fixation assembly comprises a locking pin and a resilient catch;

the lock pin comprises a first lock plate, a second lock plate and a connecting end, wherein the first lock plate and the second lock plate are arranged on the same side of the connecting end, the first lock plate and the second lock plate are connected to the connecting end, an installation gap is formed by connecting the first lock plate, the second lock plate and the connecting end, and part of the first boss component and part of the second boss component are movably arranged in the installation gap;

the first locking plate is sequentially arranged in the first inserting hole in a penetrating mode, the first inserting channel is arranged in the elastic lock catch, the second locking plate is sequentially arranged in the second inserting hole in a penetrating mode, the second inserting channel is arranged in the elastic lock catch, the connecting end is movably abutted to one side, deviating from the first base, of the second base, and the elastic lock catch is movably connected to one side, deviating from the second base, of the first base.

3. The battery cell fixing mechanism according to claim 2, wherein the elastic lock catch is formed with a first lock hole and a second lock hole, an inner peripheral wall of the first lock hole is movably clamped to the first lock piece, and an inner peripheral wall of the second lock hole is movably clamped to the second lock piece.

4. The cell fixing mechanism according to claim 2, wherein the first locking piece, the second locking piece and the connecting end are of an integrally formed structure; and/or the number of the groups of groups,

the plane of the first locking plate in the width direction is intersected with the plane of the second locking plate in the width direction.

5. The cell fixing mechanism according to claim 3, wherein the first locking piece is provided with a first protruding portion, and the first protruding portion is movably connected to the peripheral wall of the first locking hole;

the second locking plate is provided with a second protruding portion, and the second protruding portion is movably connected to the peripheral wall of the second locking hole.

6. The battery cell fixing mechanism of claim 5, wherein the elastic lock catch is provided with a first notch and a second notch, the first notch is communicated with the first lock hole, and the second notch is communicated with the second lock hole.

7. The cell fixing mechanism according to claim 6, wherein the elastic lock catch includes a first elastic locking portion, a second elastic locking portion, and an elastic pre-tightening portion, the elastic pre-tightening portion is disposed between the first elastic locking portion and the second elastic locking portion, and the elastic pre-tightening portion is disposed avoiding the first notch, the second notch, the first lock hole, and the second lock hole.

8. The battery cell fixing mechanism according to claim 7, wherein the first elastic locking portion comprises a first elastic locking body, a first elastic cantilever and a second elastic cantilever, the first elastic cantilever and the second elastic cantilever are respectively arranged on two opposite sides of the first elastic locking body, the first elastic cantilever and the second elastic cantilever are respectively connected to the first elastic locking body, the first notch is formed between the first elastic cantilever and the second elastic cantilever, and the first locking hole is formed in the first elastic locking portion surrounded by the first elastic cantilever, the first elastic locking body and the second elastic cantilever;

the second elastic locking part comprises a second elastic locking main body, a third elastic cantilever and a fourth elastic cantilever, wherein the third elastic cantilever and the fourth elastic cantilever are respectively arranged on two opposite sides of the second elastic locking main body, the third elastic cantilever and the fourth elastic cantilever are respectively connected with the second elastic locking main body, a second notch is formed between the third elastic cantilever and the fourth elastic cantilever, and a second lock hole is formed in the second elastic locking part formed by encircling the third elastic cantilever, the second elastic locking main body and the fourth elastic cantilever.

9. The cell fixing mechanism according to claim 8, wherein an inner peripheral wall of the first elastic cantilever is provided with a first positioning flange and is connected with the first positioning flange, and an inner peripheral wall of the second elastic cantilever is provided with a second positioning flange and is connected with the second positioning flange;

the inner peripheral wall of the third elastic cantilever is provided with a third positioning flange and is connected with the third positioning flange, and the inner peripheral wall of the fourth elastic cantilever is provided with a fourth positioning flange and is connected with the fourth positioning flange.

10. A battery module, characterized by comprising a battery cell monomer and the battery cell fixing mechanism of any one of claims 1 to 9, wherein two ends of the battery cell monomer are respectively arranged in the corresponding first battery cell mounting groove and the corresponding second battery cell mounting groove.