Battery cell fixing mechanism and battery module

Abstract

The application provides an electric cell fixing mechanism, a first boss assembly is formed with a first heat dissipation gap, a first insertion hole and a second insertion hole, a second boss assembly is formed with a second heat dissipation gap, a first insertion channel and a second insertion channel, a second base is formed with a plurality of second cell mounting grooves on a side close to the second boss assembly; each first cell mounting groove and the corresponding second cell mounting groove are used for mounting and fixing two ends of an electric cell monomer; the first heat dissipation gap and the second heat dissipation gap are communicated to form a heat dissipation channel, the first insertion hole is communicated with the first insertion channel, and the second insertion hole is communicated with the second insertion channel; a fixing assembly is formed with a mounting gap, the fixing assembly is sequentially arranged in the first insertion hole and the first insertion channel, the fixing assembly is sequentially arranged in the second insertion hole and the second insertion channel, and two ends of the fixing assembly are connected to the first base and the second base respectively. The electric cell fixing mechanism can improve the heat dissipation effect of the electric cell.

Description

Technical Field

[0001] This invention relates to the field of power battery technology, and in particular to a cell fixing mechanism and a battery module. Background Technology

[0002] Cylindrical battery cells are typically mounted using a cell bracket. The bracket consists of upper and lower sections, with holes for the battery cell. The upper and lower brackets clamp together to secure the cell inside. A tie rod is usually used inside the bracket to lock the upper and lower brackets in place, further enhancing the cell's stability. This tie rod is typically cylindrical with internal holes, and bolts are used to secure the upper and lower brackets.

[0003] Although the tie rod provides good fixation for the cylindrical battery cells, it severely obstructs airflow when using a fan to cool the cells, resulting in poor heat dissipation.

[0004] For example, patent publication number CN107039615A discloses a lithium-ion battery module. The side pressure plate has through holes corresponding to the pull rod holes on each lithium-ion battery module unit. Pull rods pass sequentially through the pull rod holes on each lithium-ion battery module unit and the through holes on the side pressure plate. The two ends of the pull rods are tightened with anchors. Two adjacent rows of cell fixing slots within the same section are arranged in an alternating pattern. The pull rod holes are located between the cell fixing slots in two adjacent sections and are also alternating with two adjacent rows of cell fixing slots between two sections. Although the pull rods provide good cell fixing, because the pull rod holes are located between the cell fixing slots in two adjacent sections (i.e., the pull rod is located between two adjacent cells), the pull rods severely obstruct airflow during battery heat dissipation, resulting in poor heat dissipation for the cells. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a cell fixing mechanism and a battery module that improves the heat dissipation effect of the cell.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] A battery cell fixing mechanism includes a bracket assembly, the bracket assembly comprising a first bracket and a second bracket, characterized in that the first bracket includes a first boss assembly and a first base connected together, the first boss assembly forming a first heat dissipation gap, a first insertion hole and a second insertion hole, and the first base forming a plurality of first battery cell mounting slots on the side near the first boss assembly; the second bracket includes a second boss assembly and a second base connected together, the second boss assembly forming a second heat dissipation gap, a first insertion channel and a second insertion channel, and the second base forming a plurality of second battery cell mounting slots on the side near the second boss assembly; each first battery cell mounting slot and the corresponding second battery cell mounting slot are used together to fix both ends of a single battery cell.

[0008] The first heat dissipation gap and the second heat dissipation gap are connected to form a heat dissipation channel, the first plug hole is connected to the first plug channel, and the second plug hole is connected to the second plug channel;

[0009] The cell fixing mechanism further includes a fixing component with an installation gap. The fixing component is sequentially inserted through the first insertion hole and the first insertion channel, and is also sequentially inserted through the second insertion hole and the second insertion channel. The two ends of the fixing component are respectively connected to the first base and the second base.

[0010] In one embodiment, the fastening component includes a locking pin and a resilient latch;

[0011] The locking pin includes a first locking piece, a second locking piece, and a connecting end. The first locking piece and the second locking piece are both disposed on the same side of the connecting end. The first locking piece and the second locking piece are both connected to the connecting end. The first locking piece, the second locking piece, and the connecting end are connected to form an installation gap. A portion of the first boss assembly and a portion of the second boss assembly are movably disposed within the installation gap.

[0012] The first locking piece is sequentially inserted through the first insertion hole, the first insertion channel, and the elastic buckle; the second locking piece is sequentially inserted through the second insertion hole, the second insertion channel, and the elastic buckle; the connecting end is movably abutted against the side of the second base opposite to the first base; and the elastic buckle is movably connected to the side of the first base opposite to the second base.

[0013] In one embodiment, the resilient latch has a first locking hole and a second locking hole, the inner peripheral wall of the first locking hole being movably engaged with the first locking piece, and the inner peripheral wall of the second locking hole being movably engaged with the second locking piece.

[0014] In one embodiment, the first locking plate, the second locking plate, and the connecting end are integrally formed.

[0015] 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.

[0016] In one embodiment, the first locking piece is provided with a first protrusion, which is movably connected to the peripheral wall of the first lock hole;

[0017] The second locking piece has a second protrusion, which is movably connected to the peripheral wall of the second lock hole.

[0018] In one embodiment, the resilient latch has a first notch and a second notch, the first notch communicating with the first lock hole and the second notch communicating with the second lock hole.

[0019] In one embodiment, the elastic latch includes a first elastic locking part, a second elastic locking part, and an elastic pre-tightening part. The elastic pre-tightening part is disposed between the first elastic locking part and the second elastic locking part, and the elastic pre-tightening part is disposed away from the first notch, the second notch, the first lock hole, and the second lock hole.

[0020] 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 opposite sides of the first elastic locking body and 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.

[0021] The second elastic locking part includes a second elastic locking body, a third elastic cantilever, and a fourth elastic cantilever. The third elastic cantilever and the fourth elastic cantilever are respectively disposed on opposite sides of the second elastic locking body and are respectively connected to the second elastic locking body. The second notch is formed between the third elastic cantilever and the fourth elastic cantilever, and the second locking hole is formed in the second elastic locking part surrounded by the third elastic cantilever, the second elastic locking body, and the fourth elastic cantilever.

[0022] In one embodiment, the inner peripheral wall of the first elastic cantilever is provided with a first positioning flange and connected to the first positioning flange, and the inner peripheral wall of the second elastic cantilever is provided with a second positioning flange and connected to the second positioning flange.

[0023] The inner peripheral wall of the third elastic cantilever is provided with a third positioning flange and is connected to the third positioning flange; the inner peripheral wall of the fourth elastic cantilever is provided with a fourth positioning flange and is connected to the fourth positioning flange.

[0024] A battery module includes a single battery cell and a battery cell fixing mechanism as described in any of the above embodiments, wherein the two ends of the single battery cell are respectively disposed in a corresponding first battery cell mounting slot and a corresponding second battery cell mounting slot.

[0025] Compared with the prior art, the present invention has at least the following advantages:

[0026] 1) In the fixing component of the present invention, the first boss component forms a first heat dissipation gap, the second boss component forms a second heat dissipation gap, and the first heat dissipation gap and the second heat dissipation gap are connected to form a heat dissipation channel, so that the heat dissipation airflow can pass through the heat dissipation channel better and carry away the heat dissipated by the battery cell. This effectively alleviates the problem that the traditional battery cell fixing mechanism obstructs the gap between the battery cells and makes heat dissipation difficult, thus ensuring the heat dissipation effect of the battery module on the battery cells.

[0027] 2) The fixing component of the present invention is sequentially inserted through the first insertion hole and the first insertion channel, and the fixing component is also sequentially inserted through the second insertion hole and the second insertion channel. The two ends of the fixing component are respectively connected to the first base and the second base. That is, the fixing component is sequentially inserted through the first bracket and the second bracket. In other words, the fixing component plays a fixing role on the bracket assembly, ensuring the structural stability of the cell fixing mechanism. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the battery cell fixing mechanism according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the battery cell fixing mechanism according to another embodiment of the present invention;

[0031] Figure 3 for Figure 2 A partial enlarged view of the battery cell fixing mechanism at point A;

[0032] Figure 4This is a schematic diagram of the battery cell fixing mechanism according to another embodiment of the present invention;

[0033] Figure 5 for Figure 4 A partial enlarged view of the battery cell fixing mechanism at point B;

[0034] Figure 6 This is a schematic diagram of the battery cell fixing mechanism according to another embodiment of the present invention;

[0035] Figure 7 for Figure 6 A partial enlarged view of the battery cell fixing mechanism at point C;

[0036] Figure 8 This is a schematic diagram of the battery cell fixing mechanism according to another embodiment of the present invention;

[0037] Figure 9 This is a schematic diagram of the battery cell fixing mechanism according to another embodiment of the present invention;

[0038] Figure 10 for Figure 9 A partial enlarged view of the battery cell fixing mechanism at point D;

[0039] Figure 11 for Figure 1 A partial schematic diagram of the battery cell fixing mechanism shown;

[0040] Figure 12 for Figure 1 A partial schematic diagram of the battery cell fixing mechanism from another perspective;

[0041] Figure 13 for Figure 1 A partial schematic diagram of the battery cell fixing mechanism shown;

[0042] Figure 14 This is a cross-sectional view of a cell fixing mechanism according to another embodiment of the present invention. Detailed Implementation

[0043] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0044] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0045] Unless otherwise defined, 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 invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0046] Please refer to the following: Figures 1-8 , Figure 11 as well as Figure 14 One embodiment of the battery cell fixing mechanism 10 includes a bracket assembly 20, which 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 connected to each other. The first boss assembly 110 has a first heat dissipation gap 102, a first insertion hole 103 and a second insertion hole 104. The first base 120 has a plurality of first battery cell mounting slots 105 formed on the side near the first boss assembly 110. The second bracket 200 includes a second boss assembly 210 and a second base 220 connected to each other. The platform component 210 has a second heat dissipation gap 201, a first insertion channel 202, and a second insertion channel 203. The second base 220 has a plurality of second cell mounting slots 204 on the side near the second boss component 210. Each first cell mounting slot 105 and the corresponding second cell mounting slot 204 are used to install and fix the two ends of the cell. The first heat dissipation gap 102 and the second heat dissipation gap 201 are connected to form a heat dissipation channel 101. The first insertion hole 103 is connected to the first insertion channel 202, and the second insertion hole 104 is connected to the second insertion channel 203.

[0047] The aforementioned fixing component 30 has a first heat dissipation gap 102 formed by the first boss component 110 and a second heat dissipation gap 201 formed by the second boss component 210. The first heat dissipation gap 102 and the second heat dissipation gap 201 are connected to form a heat dissipation channel 101, allowing the heat dissipation airflow to pass through the heat dissipation channel 101 more effectively, carrying away the heat dissipated by the battery cell. This effectively alleviates the problem of heat dissipation caused by the traditional battery cell fixing mechanism 10 obstructing the gaps between the battery cells, thus ensuring the heat dissipation effect of the battery module on the battery cells. In addition, the fixing component 30 is sequentially inserted through the first insertion hole 103 and the first insertion channel 202, and is also sequentially inserted through the second insertion hole 104 and the second insertion channel 203. The 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 is sequentially inserted through the first bracket 100 and the second bracket 200, that is, the fixing component 30 plays a fixing role for the bracket component 20, ensuring the structural stability of the battery cell fixing mechanism 10.

[0048] Please refer to the following: Figures 2-5 as well as Figure 12 In one embodiment, the fixing component 30 includes a locking pin 300 and a resilient latch 400; the locking pin 300 includes a first locking piece 310, a second locking piece 320, and a connecting end 330. The first locking piece 310 and the second locking piece 320 are both disposed on the same side of the connecting end 330, and both are connected to the connecting end 330. The first locking piece 310, the second locking piece 320, and the connecting end 330 are connected to form an installation gap 301. A portion of the first boss component 110 and... The second boss assembly 210 is partially movably disposed within the installation gap 301; the first locking piece 310 is sequentially disposed through the first insertion hole 103, the first insertion channel 202 and the elastic buckle 400; the second locking piece 320 is sequentially disposed through the second insertion hole 104, the second insertion channel 203 and the elastic buckle 400; the connecting end 330 is movably abutted against the side of the second base 220 opposite to the first base 120; and the elastic buckle 400 is movably connected to the side of the first base 120 opposite to the second base 220. It is understood that the first locking plate 310 is sequentially inserted through the first insertion hole 103, the first insertion channel 202 and the elastic buckle, and the second locking plate 320 is sequentially inserted through the second insertion hole 104, the second insertion channel 203 and the elastic buckle, and the connecting end 330 abuts against the second base 220, which ensures the connection stability of the locking pin 300, the elastic buckle 400 and the bracket assembly 20, and ensures the structural stability of the battery cell fixing mechanism 10.

[0049] In one embodiment, the resilient latch has a first locking hole and a second locking hole, the inner peripheral wall of the first locking hole being movably engaged with a first locking piece, and the inner peripheral wall of the second locking hole being movably engaged with a second locking piece. It is understood that the first locking plate 310 is sequentially inserted into the first insertion hole 103, the first insertion channel 202, and the first locking hole 401, and the second locking plate 320 is sequentially inserted into the second insertion hole 104, the second insertion channel 203, and the second locking hole 403, with the connecting end 330 abutting against the second base 220, ensuring the connection stability of the locking pin 300, the elastic latch 400, and the bracket assembly 20. The inner peripheral wall of the first locking hole 401 is movably engaged with the first locking plate 310, and the inner peripheral wall of the second locking hole 403 is movably engaged with the second locking plate 320, so that the elastic latch 400 is engaged with the locking pin 300, ensuring the structural stability of the battery cell fixing mechanism 10, and replacing the traditional bolt connection method, improving installation efficiency, and eliminating the need for tools, thus improving installation convenience.

[0050] Please see Figure 12 In one embodiment, the first locking plate 310, the second locking plate 320, and the connecting end 330 are integrally formed. This improves the structural stability of the locking pin 300, thereby increasing the service life of the fixing assembly 30.

[0051] Please refer to the following: Figures 11-12 In one embodiment, the plane of the first locking piece 310 in the width direction intersects the plane of the second locking piece 320 in the width direction. This increases the rigidity of the fixing component 30, making it less prone to breakage and thus ensuring its service life.

[0052] Please refer to the following: Figures 9-10 In one embodiment, the first locking plate 310 is provided with a first protrusion 311, which is movably connected to the peripheral wall of the first locking hole 401; the second locking plate 320 is provided with a second protrusion 321, which is movably connected to the peripheral wall of the second locking hole 403. It is understandable that the elastic buckle 400 has good elasticity. When the first protrusion 311 passes through the first lock hole 401, the elastic buckle 400 undergoes elastic deformation to allow the first protrusion 311 to pass through. After the first protrusion 311 passes through the first lock hole 401, it connects to the peripheral wall of the first lock hole 401, ensuring the connection stability between the first protrusion 311 and the elastic buckle 400. Similarly, when the second protrusion 321 passes through the second lock hole 403, the elastic buckle 400 undergoes elastic deformation to allow the second protrusion 321 to pass through. After the second protrusion 321 passes through the second lock hole 403, it connects to the peripheral wall of the second lock hole 403, ensuring the connection stability between the second protrusion 321 and the elastic buckle 400.

[0053] Please refer to the following: Figures 2-5 In one embodiment, the elastic latch 400 has a first notch 402 and a second notch 404. The first notch 402 communicates with the first locking hole 401, and the second notch 404 communicates with the second locking hole 403. It can be understood that the elastic latch 400 can generate a large elastic deformation at the first notch 402, making it easier for the first locking piece 310 to pass through the first locking hole 401. This improves the ease of installation and disassembly of the fixing component 30 and reduces the risk of breakage. Similarly, the elastic latch 400 can generate a large elastic deformation at the second notch 404, making it easier for the second locking piece 320 to pass through the second locking hole 403. This also improves the ease of installation and disassembly of the fixing component 30 and reduces the risk of breakage, thus ensuring both ease of use and service life of the fixing component 30.

[0054] Please refer to the following: Figures 2-5 as well as Figure 13 In one embodiment, the elastic latch 400 includes a first elastic locking part 410, a second elastic locking part 420, and an elastic pre-tightening part 430. The elastic pre-tightening part 430 is disposed between the first elastic locking part 410 and the second elastic locking part 420, and the elastic pre-tightening part 430 is disposed away from the first notch 402, the second notch 404, the first lock hole 401, and the second lock hole 403. It is understood that the first elastic locking part 410 needs to generate a large elastic deformation when installing or removing the first locking piece 310. Similarly, the second elastic locking part 420 needs to generate a large elastic deformation when installing or removing the second locking piece 320. The elastic pre-tightening part 430 can provide pre-tightening force to the first elastic locking part 410 and the second elastic locking part 420, thereby improving the service life of the elastic lock 400. Moreover, the elastic pre-tightening part 430 is set away from the first notch 402, the second notch 404, the first lock hole 401 and the second lock hole 403, so it will not hinder the elastic deformation of the first elastic locking part 410 and the second elastic locking part 420, thereby ensuring the fixing effect of the elastic lock 400 on the locking pin 300.

[0055] Please refer to the following: Figure 1 and Figure 13In one embodiment, the first elastic locking part 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 on opposite sides of the first elastic locking body 411 and are respectively connected to the first elastic locking body 411. A first notch 402 is formed between the first elastic cantilever 412 and the second elastic cantilever 413, and a first locking hole 401 is formed in the first elastic lock formed by the first elastic locking body 411, the first elastic cantilever 412, and the second elastic cantilever 413. The fastening part 410; the second elastic locking part 420 includes a second elastic locking body 421, a third elastic cantilever 422 and a fourth elastic cantilever 423, the third elastic cantilever 422 and the fourth elastic cantilever 423 are respectively disposed on 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, a second notch 404 is formed between the third elastic cantilever 422 and the fourth elastic cantilever 423, and a second locking hole 403 is formed in the second elastic locking part 420 surrounded by the second elastic locking body 421, the third elastic cantilever 422 and the fourth elastic cantilever 423. It is understood that the first elastic cantilever 412 has high preload and elastic deformation capacity, and the second elastic cantilever 413 also has high preload and elastic deformation capacity. Furthermore, the first notch 402 is formed between the first elastic cantilever 412 and the second elastic cantilever 413, allowing the size of the first locking hole 401 formed by the first elastic cantilever 412, the first elastic locking body 411, and the second elastic cantilever 413 to change significantly through elastic deformation, sufficient to allow the first locking piece 310 to pass through. This improves the ease of installation of the fixing component 30, reduces the risk of breakage, and extends the service life of the fixing component 30. Similarly, the third elastic cantilever 422 has a high preload and elastic deformation capacity, and the fourth elastic cantilever 423 also has a high preload and elastic deformation capacity. 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 formed by the third elastic cantilever 422, the second elastic locking body 421 and the fourth elastic cantilever 423 can change significantly through elastic deformation, which is sufficient to allow the second locking piece 320 to pass through. This improves the installation convenience of the fixing component 30 and makes it less prone to breakage, thus increasing the service life of the fixing component 30.

[0056] Please refer to the following: Figures 1-3In one embodiment, the inner peripheral wall of the first elastic cantilever 412 is provided with and connected to the first positioning flange; the inner peripheral wall of the second elastic cantilever 413 is provided with and connected to the second positioning flange; the inner peripheral wall of the third elastic cantilever 422 is provided with and connected to the third positioning flange 4221; and the inner peripheral wall of the fourth elastic cantilever 423 is provided with and connected to the fourth positioning flange 4231. It can be understood that after the first locking piece 310 is installed in the first locking hole 401, the first and second positioning flanges further fix the first locking piece 310, ensuring the structural stability of the fixing assembly 30; similarly, after the second locking piece 320 is installed in the second locking hole 403, the third positioning flange 4221 and the fourth positioning flange 4231 further fix the second locking piece 320, ensuring the structural stability of the fixing assembly 30.

[0057] Please refer to the following: Figures 6-7The 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 connected to the first base 120. A first insertion hole 103 is formed on the first boss 111, and a second insertion hole 104 is formed on the second boss 112. A 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 second base. On the same side of the second base 220, a first insertion channel 202 is formed on the third protrusion 211, a second insertion channel 203 is formed on the fourth protrusion 212, and a second heat dissipation gap 201 is formed between the third protrusion 211 and the fourth protrusion 212; the first protrusion 111 and the third protrusion 211 are located on the same side of the heat dissipation channel 101, and the first protrusion 111 and the third protrusion 211 are movably connected; the second protrusion 112 and the fourth protrusion 212 are located on the other side of the heat dissipation channel 101, and the second protrusion 112 and the fourth protrusion 212 are movably connected. It is understood that a first heat dissipation gap 102 is formed between the first protrusion 111 and the second protrusion 112, and a second heat dissipation gap 201 is formed between the third protrusion 211 and the fourth protrusion 212. The first heat dissipation gap 102 and the second heat dissipation gap 201 are connected to form a heat dissipation channel 101. When the cooling fan is set at a preset angle, the air generated by the cooling fan passes through the heat dissipation channel 101 and carries away the heat dissipated by the battery cell 40. This effectively alleviates the problem of heat dissipation caused by the traditional battery cell fixing mechanism 10 blocking the gaps between the battery cells 40, thus ensuring the heat dissipation effect of the battery module on the battery cells 40. Furthermore, the first protrusion 111 and the third protrusion 211 are movably connected, and the second protrusion 112 and the fourth protrusion 212 are movably connected, that is, the first bracket 100 and the second bracket 200 are movably connected, which facilitates replacement and maintenance. This improves the ease of use of the battery cell fixing mechanism 10. The first locking plate 310 is sequentially inserted through the first insertion hole 103, the first insertion channel 202, and the first locking hole 401. The second locking plate 320 is sequentially inserted through the second insertion hole 104, the second insertion channel 203, and the second locking hole 403. The connecting end 330 abuts against the second base 220, ensuring the connection stability of the locking pin 300, the elastic buckle 400, and the bracket assembly 20. The inner peripheral wall of the first locking hole 401 is movably engaged with the first locking plate 310, and the inner peripheral wall of the second locking hole 403 is movably engaged with the second locking plate 320, so that the elastic buckle 400 is engaged with the locking pin 300, ensuring the structural stability of the battery cell fixing mechanism 10. It also replaces the traditional bolt connection method, improves installation efficiency, and eliminates the need for tools, thus improving installation convenience.

[0058] Please refer to the following: Figure 1 and Figure 8This application also provides a battery module, including a battery cell 40 and a battery cell fixing mechanism 10 as described in any of the above embodiments, wherein the two ends of the battery cell are respectively disposed in a corresponding first battery cell mounting groove 105 and a corresponding second battery cell mounting groove 204.

[0059] The aforementioned battery module can be understood to have the cooling fan's exhaust end facing the heat dissipation channel 101. The air generated by the cooling fan passes through the heat dissipation channel 101, carrying away the heat dissipated by the battery cell 40. This effectively alleviates the problem of heat dissipation being difficult due to obstruction of the gaps between the battery cells 40 by the traditional battery cell fixing mechanism 10, ensuring the battery module's heat dissipation effect on the battery cells 40. In addition, the first locking plate 310 is sequentially inserted through the first insertion hole 103, the first insertion channel 202, and the first locking hole 401, and the second locking plate 320 is sequentially inserted through the second insertion hole 104, the second insertion channel 202, and the first locking hole 401. The connection channel 203 and the second locking hole 403 are connected, and the connecting end 330 abuts against the second base 220, ensuring the connection stability of the locking pin 300, the elastic buckle 400 and the bracket assembly 20. The inner peripheral wall of the first locking hole 401 is movably engaged with the first locking piece 310, and the inner peripheral wall of the second locking hole 403 is movably engaged with the second locking piece 320, so that the elastic buckle 400 is engaged with the locking pin 300, ensuring the structural stability of the battery cell fixing mechanism 10. It also replaces the traditional bolt connection method, improves the installation efficiency, and does not require tools, thus improving the convenience of installation.

[0060] Please refer to the following: Figures 2-5 The number of first protrusions 111 is multiple, the number of second protrusions 112 is multiple, the number of third protrusions 211 is multiple, the number of fourth protrusions 212 is multiple, the number of locking pins 300 is multiple, and the number of elastic latches 400 is multiple. The first locking piece 310 of each locking pin 300 is sequentially inserted into the corresponding first insertion channel 202, the first insertion hole 103 and the first locking hole 401. The second locking piece 320 of each locking pin 300 is sequentially inserted into the corresponding second insertion channel 203, the second insertion hole 104 and the second locking hole 403. The heat dissipation channels 101 of each locking pin 300 are opened in the same direction, which improves the structural stability of the battery cell fixing mechanism 10.

[0061] Please see Figure 13 The first elastic cantilever 412 includes a first support arm and a first bending arm, with the included angle between the first support arm and the first bending arm being a first obtuse angle. This is to prevent the first support arm and the first bending arm from breaking, thereby ensuring the service life of the fixing assembly 30.

[0062] Please see Figure 13The second elastic cantilever 413 includes a second support arm and a second bending arm, with the included angle between the second support arm and the second bending arm being a second obtuse angle. This is to prevent the second support arm and the second bending arm from breaking, thereby ensuring the service life of the fixing assembly 30.

[0063] Please see Figure 13 The third elastic cantilever 422 includes a third support arm and a third bending arm, with the included angle between the third support arm and the third bending arm being a third obtuse angle. This is understood to prevent the third support arm and the third bending arm from breaking, thereby ensuring the service life of the fixing assembly 30.

[0064] Please see Figure 13 The fourth flexible cantilever 423 includes a fourth support arm and a fourth bending arm, with the included angle between the fourth support arm and the fourth bending arm being a fourth obtuse angle. This is to prevent the fourth support arm and the fourth bending arm from breaking, thereby ensuring the service life of the fixing assembly 30.

[0065] Please see Figure 13 The inner peripheral wall of the first elastic locking body 411 is a first concave surface. This makes the first locking hole 401 larger, which is convenient for installation, and the first concave surface is an arc-shaped structure, which increases the stress on the elastic latch 400 and reduces the breakage of the elastic latch 400.

[0066] Please see Figure 13 The inner peripheral wall of the second pre-tightening body is a second concave surface. This can be understood as making the second locking hole 403 larger for easier installation, and the arc-shaped structure of the second concave surface increases the stress on the elastic latch 400 and reduces the risk of breakage of the elastic latch 400.

[0067] Please see Figure 13 The first bent arm is a first arc-shaped bent arm. It can be understood that the arc-shaped structure of the first arc-shaped bent arm increases the stress on the elastic latch 400 and reduces the breakage of the elastic latch 400.

[0068] Please see Figure 13 The second bent arm is a second arc-shaped bent arm. It can be understood that the arc-shaped structure of the second arc-shaped bent arm increases the stress on the elastic latch 400 and reduces the risk of breakage of the elastic latch 400.

[0069] Please refer to the following: Figure 2 as well as Figures 11-12The first bracket 100 has a first receiving groove, which is connected to the first insertion hole 103, the heat dissipation channel 101, and the second insertion hole 104. The ends of the first locking plate 310 and the second locking plate 320 that are opposite to the connecting end 330 are both located in the first receiving groove, and the elastic buckle 400 is movably located in the first receiving groove. It can be understood that the part of the first locking plate 310 protruding outside the first insertion hole 103, the part of the second locking plate 320 protruding outside the second insertion hole 104, and the elastic buckle 400 are all located in the first receiving groove. That is, the first locking plate 310, the second locking plate 320, and the elastic buckle 400 will not obstruct other cell fixing mechanisms 10 stacked on top of the first base 120, thereby realizing the stable stacking of multiple cell fixing mechanisms 10.

[0070] Please refer to the following: Figure 2 as well as Figures 11-12 The second bracket 200 has a second receiving slot, which is connected to the first insertion channel 202, the heat dissipation channel 101, and the second insertion channel 203. The connecting end 330 is movably disposed within the second receiving slot. It can be understood that the connecting end 330 being disposed within the second receiving slot will not obstruct other battery cell fixing mechanisms 10 placed below the second base 220, thereby enabling the stable stacking of multiple battery cell fixing mechanisms 10.

[0071] Please refer to the following: Figures 9-11 The elastic latch 400 is a spring steel elastic latch 400. It can be understood that the spring steel elastic latch 400 has good elasticity. When the locking pin 300 is installed or removed from the spring steel elastic latch 400, it can produce a large elastic deformation, improving the ease of installation and removal of the fixing component 30. Furthermore, the spring steel elastic latch 400 has good resilience, and can recover well after elastic deformation, thus ensuring the service life of the fixing component 30. Additionally, the spring steel elastic latch 400 has good thermal conductivity, and since it is located on the outside of the first base 120, the heat dissipated from inside the battery module can be transferred to the outside of the battery module through the spring steel elastic latch 400.

[0072] Please refer to the following: Figures 6-7 The first protrusion 111 is a first frustum-shaped protrusion, and the area of ​​the first frustum-shaped protrusion on the side closer to the first base 120 is larger than the area on the side farther away from the first base 120. It can be understood that this reduces the space occupied by the first protrusion assembly 110 in the battery module, improves the heat dissipation effect of the battery module, and makes the first protrusion 111 structurally stronger and less prone to breakage.

[0073] Please refer to the following: Figures 6-7The first protrusion 111 is a frustum-shaped protrusion, and the area of ​​the side of the first frustum-shaped protrusion closer to the first base 120 is larger than the area of ​​the side farther away from the first base 120. It can be understood that this reduces the space occupied by the first protrusion assembly 110 in the battery module, improves the heat dissipation effect of the battery module, and makes the first protrusion 111 structurally stronger and less prone to breakage.

[0074] Please refer to the following: Figures 6-7 The second protrusion 112 is a second frustum-shaped protrusion, and the area of ​​the second frustum-shaped protrusion on the side closer to the first base 120 is larger than the area on the side farther away from the first base 120. It can be understood that this reduces the space occupied by the second protrusion assembly 210 within the battery module, improves the heat dissipation effect of the battery module, and makes the structure of the second protrusion 112 more robust and less prone to breakage.

[0075] Please refer to the following: Figures 6-7 The second protrusion 112 is a second frustum-shaped protrusion, and the area of ​​the second frustum-shaped protrusion on the side closer to the first base 120 is larger than the area on the side farther away from the first base 120. It can be understood that this reduces the space occupied by the second protrusion assembly 210 within the battery module, improves the heat dissipation effect of the battery module, and makes the structure of the second protrusion 112 more robust and less prone to breakage.

[0076] Please refer to the following: Figures 6-7 The third protrusion 211 is a third frustum-shaped protrusion, and the area of ​​the third frustum-shaped protrusion on the side closer to the first base 120 is larger than the area on the side farther away from the first base 120. It can be understood that this reduces the space occupied by the third protrusion 211 component within the battery module, improves the heat dissipation effect of the battery module, and makes the third protrusion 211 structurally stronger and less prone to breakage.

[0077] Please refer to the following: Figures 6-7 The third protrusion 211 is a third frustum-shaped protrusion, and the area of ​​the third frustum-shaped protrusion on the side closer to the first base 120 is larger than the area on the side farther away from the first base 120. It can be understood that this reduces the space occupied by the third protrusion 211 component within the battery module, improves the heat dissipation effect of the battery module, and makes the third protrusion 211 structurally stronger and less prone to breakage.

[0078] Please refer to the following: Figures 6-7 The fourth protrusion 212 is a fourth frustum-shaped protrusion, and the area of ​​the fourth frustum-shaped protrusion closer to the first base 120 is larger than the area of ​​the side farther away from the first base 120. It can be understood that this reduces the space occupied by the fourth protrusion 212 component within the battery module, improves the heat dissipation effect of the battery module, and makes the fourth protrusion 212 structurally stronger and less prone to breakage.

[0079] Please refer to the following: Figures 6-7The fourth protrusion 212 is a frustum-shaped protrusion, and the area of ​​the side of the fourth frustum-shaped protrusion closer to the first base 120 is larger than the area of ​​the side farther away from the first base 120. It can be understood that this reduces the space occupied by the fourth protrusion 212 component within the battery module, improves the heat dissipation effect of the battery module, and makes the fourth protrusion 212 structurally stronger and less prone to breakage.

[0080] Please refer to the following: Figures 6-7 The first positioning protrusion protrudes from the elastic latch 400, and the angle formed between the first positioning protrusion and the first elastic cantilever 412 is an obtuse angle. It can be understood that the first locking plate 310 moves upward during installation, and the upward-sloping first positioning protrusion facilitates the installation of the first locking plate 310, improving the installation convenience of the battery cell fixing mechanism 10. After installation, the upward-sloping first positioning protrusion abuts against the first protrusion 311 of the first locking plate 310, thus providing a better positioning effect on the first locking plate 310, effectively reducing the phenomenon of the locking pin 300 separating from the elastic latch 400.

[0081] Please refer to the following: Figures 6-7 The second positioning protrusion protrudes from the elastic latch 400, and the angle formed between the second positioning protrusion and the second elastic cantilever 413 is an obtuse angle. It can be understood that the second locking plate 320 moves upward during installation, and the upward-sloping second positioning protrusion facilitates the installation of the second locking plate 320, improving the installation convenience of the battery cell fixing mechanism 10. After installation, the upward-sloping second positioning protrusion abuts against the second protrusion 321 of the second locking plate 320, thus providing a better positioning effect on the second locking plate 320, effectively reducing the phenomenon of the locking pin 300 separating from the elastic latch 400.

[0082] Please see Figure 12 In one embodiment, the locking pin 300 is a U-shaped locking pin, the connecting end 330 is located at the arc-shaped end of the U-shaped locking pin, and the first locking piece 310 and the second locking piece 320 are formed on opposite sides of the arc-shaped end and connected to the arc-shaped end.

[0083] Compared with the prior art, the present invention has at least the following advantages:

[0084] 1) The fixing component 30 of the present invention has a first heat dissipation gap 102 formed by the first boss component 110 and a second heat dissipation gap 201 formed by the second boss component 210. The first heat dissipation gap 102 and the second heat dissipation gap 201 are connected to form a heat dissipation channel 101, so that the heat dissipation airflow can pass through the heat dissipation channel 101 better and carry away the heat dissipated by the battery cell. This effectively alleviates the problem that the traditional battery cell fixing mechanism 10 obstructs the gap between the battery cells and makes heat dissipation difficult, thus ensuring the heat dissipation effect of the battery module on the battery cells.

[0085] 2) The fixing component 30 of the present invention is sequentially inserted through the first insertion hole 103 and the first insertion channel 202, and is also sequentially inserted through the second insertion hole 104 and the second insertion channel 203. The 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 is sequentially inserted through the first bracket 100 and the second bracket 200, that is, the fixing component 30 plays a fixing role on the bracket assembly 20, ensuring the structural stability of the cell fixing mechanism 10.

[0086] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A battery cell fixing mechanism, comprising a support assembly, the support assembly including a first support and a second support, characterized in that, The first bracket includes a first boss assembly and a first base connected together. The first boss assembly has a first heat dissipation gap, a first insertion hole, and a second insertion hole. The first base has a plurality of first cell mounting slots on the side near the first boss assembly. The second bracket includes a second boss assembly and a second base connected together. The second boss assembly has a second heat dissipation gap, a first insertion channel, and a second insertion channel. The second base has a plurality of second cell mounting slots on the side near the second boss assembly. Each first cell mounting slot and the corresponding second cell mounting slot are used together to mount and fix both ends of a single cell. The first heat dissipation gap and the second heat dissipation gap are connected to form a heat dissipation channel, the first plug hole is connected to the first plug channel, and the second plug hole is connected to the second plug channel; The cell fixing mechanism further includes a fixing component with an installation gap. The fixing component is sequentially inserted through the first insertion hole and the first insertion channel, and is also sequentially inserted through the second insertion hole and the second insertion channel. The two ends of the fixing component are respectively connected to the first base and the second base.

2. The cell fixing mechanism according to claim 1, characterized in that, The fixing component includes a locking pin and a resilient latch; The locking pin includes a first locking piece, a second locking piece, and a connecting end. The first locking piece and the second locking piece are both disposed on the same side of the connecting end. The first locking piece and the second locking piece are both connected to the connecting end. The first locking piece, the second locking piece, and the connecting end are connected to form an installation gap. A portion of the first boss assembly and a portion of the second boss assembly are movably disposed within the installation gap. The first locking piece is sequentially inserted through the first insertion hole, the first insertion channel, and the elastic buckle; the second locking piece is sequentially inserted through the second insertion hole, the second insertion channel, and the elastic buckle; the connecting end is movably abutted against the side of the second base opposite to the first base; and the elastic buckle is movably connected to the side of the first base opposite to the second base.

3. The cell fixing mechanism according to claim 2, characterized in that, The elastic latch has a first locking hole and a second locking hole. The inner peripheral wall of the first locking hole is movably engaged with the first locking plate, and the inner peripheral wall of the second locking hole is movably engaged with the second locking plate.

4. The cell fixing mechanism according to claim 2, characterized in that, The first locking plate, the second locking plate, and the connecting end are integrally formed; and / or, The plane of the first locking piece in the width direction intersects the plane of the second locking piece in the width direction.

5. The cell fixing mechanism according to claim 3, characterized in that, The first locking plate is provided with a first protrusion, which is movably connected to the peripheral wall of the first lock hole; The second locking piece has a second protrusion, which is movably connected to the peripheral wall of the second lock hole.

6. The cell fixing mechanism according to claim 5, characterized in that, The elastic latch has a first notch and a second notch, the first notch is connected to the first lock hole, and the second notch is connected to the second lock hole.

7. The cell fixing mechanism according to claim 6, characterized in that, The elastic latch includes a first elastic locking part, a second elastic locking part, and an elastic pre-tightening part. The elastic pre-tightening part is disposed between the first elastic locking part and the second elastic locking part, and the elastic pre-tightening part is disposed away from the first notch, the second notch, the first lock hole, and the second lock hole.

8. The cell fixing mechanism according to claim 7, characterized in that, The first elastic locking part 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 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. The first locking hole is formed in the first elastic locking part surrounded by the first elastic cantilever, the first elastic locking body and the second elastic cantilever. The second elastic locking part includes a second elastic locking body, a third elastic cantilever, and a fourth elastic cantilever. The third elastic cantilever and the fourth elastic cantilever are respectively disposed on opposite sides of the second elastic locking body and are respectively connected to the second elastic locking body. The second notch is formed between the third elastic cantilever and the fourth elastic cantilever, and the second locking hole is formed in the second elastic locking part surrounded by the third elastic cantilever, the second elastic locking body, and the fourth elastic cantilever.

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

10. A battery module, characterized in that, The device includes a battery cell and a battery cell fixing mechanism as described in any one of claims 1 to 9, wherein the two ends of the battery cell are respectively disposed in the corresponding first battery cell mounting slot and the corresponding second battery cell mounting slot.

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