Battery cell restraining tray device

Abstract

The utility model relates to the technical field of battery cell restraining, and discloses a battery cell restraining tray device which comprises a frame, at least two separation components and a boss, the frame is provided with a front end plate and a rear end plate, and the front end plate and the rear end plate are arranged at the two ends of the frame in the first direction. The at least two partition assemblies are arranged at intervals in the first direction, located between the front end plate and the rear end plate and slidably connected with the frame in the first direction, and a containing cavity is formed between every two adjacent partition assemblies; each separation assembly has a restraining position and a non-restraining position, and when the separation assemblies move from the non-restraining positions to the restraining positions, the distance between the two separation assemblies forming the placement cavities is shortened to restrain the battery cells; the bosses are located in the containing cavities, one boss is arranged on at least one side face of each containing cavity in the first direction, the bosses are detachably connected with the separation assembly and used for abutting against the battery cells at the restraining positions, the minimum width of the containing cavities can be adjusted, and the battery cells of different specifications and models can be restrained.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core restraint, in particular to a battery core restraint tray device. Background Art

[0002] Lithium-ion batteries have the advantages of high energy density, long cycle life, and being green and pollution-free. They have been widely used in electric vehicle power batteries, energy storage and other fields.

[0003] The production process of lithium batteries is divided into three stages: front, middle and back. The front process is to process the raw materials into pole pieces; the middle process is to process the pole pieces into unactivated cells; the back process is to test and package, and the core process is formation and capacity separation. The formation and capacity separation of lithium battery cells is to achieve the initial formation of the battery by charging and discharging, so as to activate the active substances of the cells, which is an energy conversion process. In order to achieve a stable battery state, multiple charging and discharging operations are usually performed during the formation and capacity separation process, and the cells need to be restrained and compressed during this process.

[0004] In the related battery cell restraint tray device, during the process of restraining the battery cells, the minimum width of the cavity accommodating the battery cells is fixed, and only a single type of battery cell can be restrained and compressed, but battery cells of different specifications cannot be restrained and compressed. Utility Model Content

[0005] In view of this, the utility model provides a battery cell restraint tray device to solve the problem that in the process of restraining battery cells, the minimum width of the cavity accommodating the battery cells is fixed, and only a single model of battery cells can be restrained and compressed, but battery cells of different specifications cannot be restrained and compressed.

[0006] The utility model provides a battery cell restraint tray device, comprising a frame, at least two partition components and a boss; the frame is provided with a front end plate and a rear end plate, and the front end plate and the rear end plate are relatively arranged at two ends of the frame along a first direction; at least two partition components are arranged at intervals along the first direction, located between the front end plate and the rear end plate, and at least two of the partition components are slidably connected to the frame along the first direction, and a placement cavity is formed between two adjacent partition components, and the placement cavity is used to accommodate battery cells; the partition component has a restrained position and a non-restrained position, and when the partition component moves from the non-restrained position to the restrained position, the distance between the two partition components forming the placement cavity is shortened to restrain the battery cell; the boss is located inside the placement cavity, and each of the placement cavities is provided with a boss on at least one side of the first direction, and the boss is detachably connected to the partition component and is used to abut against the battery cell when in the restrained position.

[0007] Beneficial effects: By setting up at least two partition components, the battery cell can be restrained and squeezed; since the boss is detachably connected to the partition component, when the distance between the two partition components forming the placement cavity is shortened and is in a restrained position, the minimum width between two adjacent partition components can be changed by installing or removing the boss, thereby realizing the restraint and compression of battery cells of different specifications; and since the boss is detachably connected to the partition component, bosses of different thicknesses can also be replaced according to the specifications of the battery cell, so as to expand the scope of use of the battery cell restraint tray device.

[0008] In an optional embodiment, the partition assembly includes a partition, two side panels and a connecting piece; the boss is detachably connected to the partition, and the partition has the restrained position and the unrestrained position; the two side panels are respectively arranged on both sides of the partition along the second direction, and the side panels have protruding ends protruding from the partition along the first direction, the partition and the protruding ends of the two side panels are combined to form a placement groove, and the two placement grooves arranged opposite to each other along the first direction are combined to form the placement cavity; the two ends of the connecting piece are respectively slidably connected to the two adjacent side panels; the second direction is perpendicular to the first direction.

[0009] Beneficial effects: Since the side panel has a protruding end protruding from the partition along the first direction, the partition and the protruding ends of the two side panels are combined to form a placement groove, and the two placement grooves relatively arranged along the first direction are combined to form a placement cavity, thereby realizing the accommodation and placement of the battery cell; the setting of the connecting piece realizes the cascade between the two adjacent side panels, thereby realizing the connection between at least two partition components, so that the at least two partition components are connected into an integral structure, thereby enhancing the stability of the structure.

[0010] In an optional embodiment, a slide groove is provided on the side of the side plate facing away from the partition plate, and a bump is provided on the end of the connecting member protruding toward one side of the side plate, and the bump is slidably matched with the slide groove.

[0011] Beneficial effect: The sliding fit between the side plate and the connecting piece is achieved through the cooperation of the slide groove and the protrusion. The slide groove also limits the movement direction of the protrusion to prevent the protrusion from deflecting.

[0012] In an optional embodiment, a connecting groove and a supporting member are further provided in the side plate, and the supporting member is fixed in the connecting groove along the first direction.

[0013] Beneficial effect: By arranging the support member on the side panel along the first direction, the strength of the side panel can be enhanced, the side panel can be prevented from being squeezed and deformed, the battery cell can be prevented from being excessively squeezed, and the restraint effect of the battery cell can be effectively guaranteed.

[0014] In an optional embodiment, the frame also includes at least two groups of sliding rods, and the at least two groups of sliding rods are respectively arranged on both sides of the frame along the second direction; the two ends of the sliding rods are respectively fixedly connected to the front end plate and the rear end plate, and the side plates are slidably connected to the sliding rods.

[0015] Beneficial effect: By setting at least two sets of sliding rods, sliding cooperation between the partition assembly and the frame can be achieved, and the sliding rods also limit the movement direction of the side panels, which can effectively prevent the side panels from deflecting.

[0016] In an optional embodiment, a restraint assembly is further included, which includes a stopper and a restraint plug; the stopper is located between the front end plate and the partition plate close to the front end plate, fixed to the bottom of the frame, and spaced apart from the front end plate to form a accommodating space; when the partition assembly is in the restraint position, the two sides of the restraint plug are respectively abutted against the stopper and the partition plate close to the front end plate; when the partition assembly is in the non-restraint position, the restraint plug is located in the accommodating space.

[0017] Beneficial effect: Through the setting of the block, it is convenient to store the restraining plug. When the partition assembly is in the non-restrained position, the restraining plug can be placed in the accommodating space formed by the block and the front end plate, which effectively prevents the loss of the restraining plug; and when the partition assembly is in the restrained position, it is convenient for the operator to promptly take out the restraining plug and place it between the block and the partition plate close to the front end plate, thereby realizing the squeezing and restraint of the partition assembly and improving work efficiency.

[0018] In an optional embodiment, it also includes a push plate assembly, which includes a first push plate, a second push plate and an elastic member; the first push plate is fixedly connected to the partition close to the front end plate; the second push plate is located between the first push plate and the front end plate; the elastic member is located between the first push plate and the second push plate, and its two ends are respectively connected to the first push plate and the second push plate.

[0019] Beneficial effect: During the process of squeezing and restraining the battery cell, when the battery cell is thicker in the first direction, after reaching the set alarm pressure, the distance between the stopper and the second push plate is too small, and the restraining plug cannot be placed to restrain the battery cell. By setting an elastic member between the first push plate and the second push plate, the distance between the first push plate and the second push plate can be reduced, thereby increasing the distance between the stopper and the second push plate, so that the restraining plug can be placed between the stopper and the second push plate to restrain the battery cell, further increasing the scope of use of the battery cell restraint tray device. On the other hand, since the expansion force of the battery cell increases when it is fully charged during the capacity division process, the setting of the elastic member can prevent the partition from being deformed due to overpressure and affecting subsequent use.

[0020] In an optional embodiment, a locking assembly is further included, which is located between the push plate assembly and the stop block. When the partition assembly is in the unrestrained position, the locking assembly locks the push plate assembly and the stop block; when the partition assembly is in the restrained position, the locking assembly unlocks the push plate assembly and the stop block.

[0021] Beneficial effects: Since the two adjacent side panels are cascaded through the connecting parts, the locking assembly is set to lock the push plate assembly and the block, so that the partition assembly can be stably fixed during the placement, movement or transportation of the battery cell restraint tray device to prevent the partition assembly from shaking, thereby enhancing the stability of the structure and facilitating the stable transportation of the battery cell restraint tray device.

[0022] In an optional embodiment, a fixing groove is provided on the second push plate, and the locking assembly includes a fixing rod and a locking buckle; the fixing rod is fixed in the fixing groove; the locking buckle is fixed to the side of the block located on the push plate assembly, and the locking buckle is used to be detachably engaged with the fixing rod.

[0023] Beneficial effect: The push plate assembly and the stopper are detachably connected by setting the fixing rod and the lock catch, and the structure is simple and easy to manufacture.

[0024] In an optional embodiment, a through hole is provided on the front end plate, and the pressure-applying device is used to pass through the through hole and abut against the push plate assembly.

[0025] Beneficial effect: By setting the through hole, it is convenient for the pressure-applying device to pass through the through hole and abut against the push plate assembly, thereby achieving the extrusion and restraint of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 This is a front view of a battery cell restraint tray device according to an embodiment of the utility model;

[0028] Figure 2 This is a schematic structural diagram of a battery cell restraint tray device according to an embodiment of the utility model, in which one battery cell and one restraint plug are removed;

[0029] Figure 3 This is a schematic diagram of the structure of a battery cell according to an embodiment of the utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the connection between the partition, the boss and the battery cell in an embodiment of the utility model;

[0031] Figure 5 It is a schematic diagram of the force effect of the negative electrode plate and the diaphragm in the embodiment of the utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the push plate assembly of an embodiment of the utility model;

[0033] Figure 7 This is a structural schematic diagram of one side of the second push plate of an embodiment of the utility model;

[0034] Figure 8 It is a structural schematic diagram of the other side of the second push plate of an embodiment of the utility model.

[0035] Description of reference numerals:

[0036] 1. Frame; 11. Front end plate; 111. Through hole; 12. Rear end plate; 13. Slide rod; 21. Partition plate; 22. Side plate; 221. Slide groove; 222. Connecting groove; 223. Support member; 23. Connecting member; 231. Bump; 3. Placement cavity; 4. Battery cell; 41. Shell; 42. Winding core; 43. Pole column; 44. Pole ear; 45. Negative pole piece; 46. Diaphragm; 5. Boss; 61. Block; 62. Restraint plug; 7. Push plate assembly; 71. First push plate; 72. Second push plate; 721. Fixed groove; 73. Elastic member; 81. Fixed rod; 82. Lock. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0038] Combine the following Figures 1 to 8 , describing an embodiment of the utility model.

[0039] According to an embodiment of the utility model, on the one hand, a battery cell restraint tray device is provided, comprising a frame 1, at least two partition components and a boss 5; the frame 1 is provided with a front end plate 11 and a rear end plate 12, and the front end plate 11 and the rear end plate 12 are relatively arranged at two ends of the frame 1 along a first direction; at least two partition components are arranged at intervals along the first direction, located between the front end plate 11 and the rear end plate 12, and at least two of the partition components are slidably connected to the frame 1 along the first direction, and a placement cavity 3 is formed between two adjacent partition components, and the placement cavity 3 is used to accommodate the battery cell 4; the partition component has a restrained position and a non-restrained position, and when the partition component moves from the non-restrained position to the restrained position, the distance between the two partition components forming the placement cavity 3 is shortened to restrain the battery cell 4; the boss 5 is located inside the placement cavity 3, and each of the placement cavities 3 is provided with a boss 5 on at least one side along the first direction, and the boss 5 is detachably connected to the partition component and is used to abut against the battery cell 4 when in the restrained position.

[0040] By setting up at least two partition components, the battery cell 4 can be restrained and squeezed; since the boss 5 is detachably connected to the partition component, when the distance between the two partition components forming the placement cavity 3 is shortened and is in a restrained position, the minimum width between two adjacent partition components can be changed by installing or removing the boss 5, so as to realize the restraint and compression of battery cells 4 of different specifications; and since the boss 5 is detachably connected to the partition component, the boss 5 of different thicknesses can also be replaced according to the specifications of the battery cell 4, so as to expand the scope of use of the battery cell restraint tray device.

[0041] like Figure 5 As shown, when the battery cell 4 is constrained in the charging and discharging process, the close fit between the negative electrode sheet 45 and the separator 46 is enhanced by squeezing the large surface of the battery cell 4, so as to prevent the negative electrode sheet 45 from expanding during the lithium insertion process and avoid deformation of the electrode sheet membrane area due to expansion stress. When the value of F1 is greater than the sum of F2 and F3, the negative electrode sheet 45 is wrinkled due to insufficient constraint on the battery cell 4. Therefore, increasing F2 or F3 can effectively reduce the wrinkling phenomenon of the negative electrode sheet 45 during charging. Occurs; specifically, F1 is the expansion force of the negative electrode plate 45, F2 is the reverse friction force of the diaphragm 46, and F3 is the friction force increased by the applied restraint force. F1 is opposite to F2, and F2 is in the same direction as F3. Therefore, the large surface of the battery cell 4 is squeezed and restrained, so that the negative electrode plate 45 and the diaphragm 46 are under external pressure. The friction between the negative electrode plate 45 and the diaphragm 46 during the expansion of the lithium-embedded thickness of the negative electrode plate 45 during charging can be enhanced, thereby effectively preventing the negative electrode plate 45 from wrinkling.

[0042] In one embodiment, the partition assembly includes a partition 21, two side panels 22 and a connecting piece 23; the boss 5 is detachably connected to the partition 21, and the partition 21 has the restrained position and the unrestrained position; the two side panels 22 are respectively arranged on both sides of the partition 21 along the second direction, and the side panel 22 has a protruding end protruding from the partition 21 along the first direction, and the partition 21 and the protruding ends of the two side panels 22 are enclosed to form a placement groove, and the two placement grooves arranged opposite to each other along the first direction are enclosed to form the placement cavity 3; the two ends of the connecting piece 23 are respectively slidably connected to the two adjacent side panels 22; the second direction is perpendicular to the first direction.

[0043] Since the side panel 22 has a protruding end protruding from the partition 21 along the first direction, the partition 21 and the protruding ends of the two side panels 22 are combined to form a placement groove, and the two placement grooves arranged opposite to each other along the first direction are combined to form a placement cavity 3, thereby accommodating and placing the battery cell 4; the setting of the connecting piece 23 realizes the cascade between the two adjacent side panels 22, thereby realizing the connection between at least two partition components, so that at least two partition components are connected into an integral structure, thereby enhancing the stability of the structure.

[0044] In one embodiment, a slide groove 221 is provided on a side of the side plate 22 away from the partition plate 21 , and a protrusion 231 is provided at an end of the connecting member 23 protruding toward a side of the side plate 22 , and the protrusion 231 is slidably matched with the slide groove 221 .

[0045] The sliding fit between the side plate 22 and the connecting member 23 is achieved through the fit between the slide groove 221 and the protrusion 231 . The slide groove 221 also limits the movement direction of the protrusion 231 to prevent the protrusion 231 from deflecting.

[0046] In one embodiment, a connecting groove 222 and a supporting member 223 are further provided in the side plate 22 , and the supporting member 223 is fixed in the connecting groove 222 along the first direction.

[0047] By arranging the support member 223 on the side plate 22 along the first direction, the strength of the side plate 22 can be enhanced, the side plate 22 can be prevented from being squeezed and deformed, and the battery cell 4 can be prevented from being excessively squeezed, thereby effectively ensuring the restraint effect of the battery cell 4.

[0048] Specifically, the support member 223 may be a steel rod.

[0049] In one embodiment, the frame 1 also includes at least two groups of sliding rods 13, and the at least two groups of sliding rods 13 are respectively arranged on both sides of the frame 1 along the second direction; the two ends of the sliding rods 13 are respectively fixedly connected to the front end plate 11 and the rear end plate 12, and the side plate 22 is slidably connected to the sliding rods 13.

[0050] By providing at least two sets of slide bars 13 , a sliding fit between the partition assembly and the frame 1 can be achieved, and the slide bars 13 also limit the movement direction of the side panels 22 , which can effectively prevent the side panels 22 from deflecting.

[0051] In one embodiment, a restraint assembly is further included, and the restraint assembly includes a stopper 61 and a restraint plug 62; the stopper 61 is located between the front end plate 11 and the partition plate 21 close to the front end plate 11, fixed to the bottom of the frame 1, and spaced apart from the front end plate 11 to form a accommodating space; when the partition assembly is in the restraint position, the two sides of the restraint plug 62 are respectively in contact with the stopper 61 and the partition plate 21 close to the front end plate 11; when the partition assembly is in the non-restraint position, the restraint plug 62 is located in the accommodating space.

[0052] The setting of the stopper 61 makes it easy to store the restraining plug 62. When the partition assembly is in the non-restrained position, the restraining plug 62 can be placed in the accommodating space formed by the stopper 61 and the front end plate 11, which effectively prevents the restraining plug 62 from being lost. When the partition assembly is in the restrained position, it is easy for the operator to promptly take out the restraining plug 62 and place it between the stopper 61 and the partition plate 21 close to the front end plate 11, thereby achieving squeezing and restraining the partition assembly and improving work efficiency.

[0053] In a specific embodiment, two groups of partition component groups are provided along the second direction, and each group of partition component groups is provided with at least two partition components along the first direction; four groups of slide bars 13 are provided in sequence along the second direction, and each group of the partition component groups has two groups of slide bars 13 correspondingly provided on both sides along the second direction; four blocks 61 are provided, and each group of the partition component groups has two blocks 61 correspondingly provided on both sides along the second direction; two groups of restraint blocks 62 are provided, corresponding to the two groups of the partition component groups respectively.

[0054] In one embodiment, it also includes a push plate assembly 7, which includes a first push plate 71, a second push plate 72 and an elastic member 73; the first push plate 71 is fixedly connected to the partition 21 close to the front end plate 11; the second push plate 72 is located between the first push plate 71 and the front end plate 11; the elastic member 73 is located between the first push plate 71 and the second push plate 72, and its two ends are respectively connected to the first push plate 71 and the second push plate 72.

[0055] Since during the process of squeezing and restraining the battery cell 4, when the battery cell 4 is thicker in the first direction, the distance between the stopper 61 and the second push plate 72 is too small after reaching the set alarm pressure, and the restraining plug 62 cannot be placed to restrain the battery cell 4. By setting the elastic member 73 between the first push plate 71 and the second push plate 72, the distance between the first push plate 71 and the second push plate 72 can be reduced, thereby increasing the distance between the stopper 61 and the second push plate 72, so that the restraining plug 62 can be placed between the stopper 61 and the second push plate 72 to restrain the battery cell 4, further increasing the use range of the battery cell restraining tray device. On the other hand, since the expansion force of the battery cell 4 increases when fully charged during the capacity division process, the setting of the elastic member 73 can prevent the partition 21 from being deformed due to overpressure and affecting subsequent use.

[0056] Specifically, the elastic member 73 is a disc spring, and at the maximum pressure, the maximum contraction amount of the disc spring is 4 mm.

[0057] In one embodiment, a locking assembly is further included, which is located between the push plate assembly 7 and the stop block 61. When the partition assembly is in the unrestrained position, the locking assembly locks the push plate assembly 7 and the stop block 61; when the partition assembly is in the restrained position, the locking assembly unlocks the push plate assembly 7 and the stop block 61.

[0058] Since two adjacent side panels 22 are cascaded through the connecting piece 23, a locking assembly is provided to lock the push plate assembly 7 and the block 61. This allows the partition assembly to be stably fixed during the placement, movement or transportation of the battery cell restraint tray device, preventing the partition assembly from shaking, thereby enhancing the stability of the structure and facilitating the stable transportation of the battery cell restraint tray device.

[0059] In one embodiment, a fixing groove 721 is provided on the second push plate 72, and the locking assembly includes a fixing rod 81 and a locking buckle 82; the fixing rod 81 is fixed in the fixing groove 721; the locking buckle 82 is fixed to the side of the block 61 located on the push plate assembly 7, and the locking buckle 82 is used to be detachably engaged with the fixing rod 81.

[0060] The fixing rod 81 and the lock buckle 82 are provided to realize the detachable connection between the push plate assembly 7 and the stopper 61 , and the structure is simple and easy to manufacture.

[0061] In one embodiment, a through hole 111 is provided on the front end plate 11 , and the pressure applying device is used to pass through the through hole 111 and abut against the push plate assembly 7 .

[0062] By providing the through hole 111 , it is convenient for the pressure-applying device to pass through the through hole 111 and abut against the push plate assembly 7 , thereby achieving compression and restraint of the battery cell 4 .

[0063] In a specific embodiment, a push rod is protruded from one side of the second push plate 72 close to the front end plate 11, and the push rod corresponds to the position of the through hole 111 and is suitable for abutting against the pressure device, so that the pressure device pushes the partition assembly to the restraining position.

[0064] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A battery cell restraint tray device, characterized in that: include: A frame (1) is provided with a front end plate (11) and a rear end plate (12), wherein the front end plate (11) and the rear end plate (12) are arranged opposite to each other at two ends of the frame (1) along a first direction; At least two partition components are arranged at intervals along the first direction and are located between the front plate (11) and the rear plate (12), and at least two of the partition components are slidably connected to the frame (1) along the first direction, and a placement cavity (3) is formed between two adjacent partition components, and the placement cavity (3) is used to accommodate a battery cell (4); the partition component has a restrained position and a non-restrained position, and when the partition component moves from the non-restrained position to the restrained position, the distance between the two partition components forming the placement cavity (3) is shortened to restrain the battery cell (4); A boss (5) is located inside the placement cavity (3), and each placement cavity (3) is provided with a boss (5) on at least one side surface along the first direction. The boss (5) is detachably connected to the partition assembly and is used to abut against the battery cell (4) when in the restrained position.

2. The battery cell restraint tray device according to claim 1, characterized in that: The partition assembly comprises: A partition (21), the boss (5) being detachably connected to the partition (21), and the partition (21) having the restrained position and the unrestrained position; Two side plates (22) are respectively arranged on both sides of the partition plate (21) along the second direction, the side plates (22) have protruding ends protruding from the partition plate (21) along the first direction, the partition plate (21) and the protruding ends of the two side plates (22) are combined to form a placement groove, and the two placement grooves arranged opposite to each other along the first direction are combined to form the placement cavity (3); A connecting member (23), both ends of which are slidably connected to two adjacent side plates (22); The second direction is perpendicular to the first direction.

3. The battery cell restraint tray device according to claim 2, characterized in that: A sliding groove (221) is provided on the side of the side plate (22) facing away from the partition plate (21), and a protrusion (231) is provided on the end of the connecting member (23) protruding toward the side of the side plate (22), and the protrusion (231) is slidably matched with the sliding groove (221).

4. The battery cell restraint tray device according to claim 2, characterized in that: A connecting groove (222) and a supporting member (223) are also provided in the side plate (22), and the supporting member (223) is fixed in the connecting groove (222) along the first direction.

5. The battery cell restraint tray device according to any one of claims 2 to 4, characterized in that: The frame (1) further comprises at least two groups of sliding rods (13), and the at least two groups of sliding rods (13) are respectively arranged on both sides of the frame (1) along the second direction; the two ends of the sliding rods (13) are respectively fixedly connected to the front end plate (11) and the rear end plate (12), and the side plates (22) are slidably connected to the sliding rods (13).

6. The battery cell restraint tray device according to any one of claims 2 to 4, characterized in that: It also includes a restraining component, which includes a stopper (61) and a restraining plug (62); the stopper (61) is located between the front end plate (11) and the partition plate (21) close to the front end plate (11), fixed to the bottom of the frame (1), and spaced apart from the front end plate (11) to form a receiving space; when the partition component is in the restraining position, the two sides of the restraining plug (62) are respectively in contact with the stopper (61) and the partition plate (21) close to the front end plate (11); when the partition component is in the non-restraining position, the restraining plug (62) is located in the receiving space.

7. The battery cell restraint tray device according to claim 6, characterized in that: It also includes a push plate assembly (7), the push plate assembly (7) including: A first push plate (71) fixedly connected to the partition plate (21) close to the front end plate (11); a second push plate (72) located between the first push plate (71) and the front end plate (11); The elastic member (73) is located between the first push plate (71) and the second push plate (72), and two ends thereof are respectively connected to the first push plate (71) and the second push plate (72).

8. The battery cell restraint tray device according to claim 7, characterized in that: The invention also comprises a locking assembly, wherein the locking assembly is located between the push plate assembly (7) and the stop block (61); when the partition assembly is in the unrestrained position, the locking assembly locks the push plate assembly (7) and the stop block (61); when the partition assembly is in the restrained position, the locking assembly unlocks the push plate assembly (7) and the stop block (61).

9. The battery cell restraint tray device according to claim 8, characterized in that: The second push plate (72) is provided with a fixing groove (721), and the locking assembly comprises: A fixing rod (81), fixed in the fixing groove (721); A lock buckle (82) is fixed to the stopper (61) at one side of the push plate assembly (7), and the lock buckle (82) is used to be detachably engaged with the fixing rod (81).

10. The battery cell restraint tray device according to any one of claims 7 to 9, characterized in that: The front end plate (11) is provided with a through hole (111), and the pressure-applying device is used to pass through the through hole (111) and abut against the push plate assembly (7).

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