Battery cell heating carrier tool and battery cell heating device

Abstract

The application relates to a carrying tool for heating an electric core and an electric core heating device. The carrying tool comprises a rack, a plurality of clamping assemblies, a conveying assembly, a first operating structure and a second operating structure. The rack is configured with a feeding area, a heating area and a discharging area arranged in sequence along a first direction, and each clamping assembly is configured with a clamping cavity. The conveying assembly comprises a closed loop conveying belt, and part of the conveying belt corresponds to the feeding area, the heating area and the discharging area. A plurality of clamping assemblies are connected on the conveying belt in the circumferential direction, and the conveying belt is configured to be capable of making a circulating motion on the rack to drive the plurality of clamping assemblies connected thereon to pass through the feeding area, the heating area and the discharging area one by one. The first operating structure is used for clamping the clamping assembly passing through the feeding area, and the second operating structure is used for opening the clamping cavity of the clamping assembly passing through the discharging area. The carrying tool for heating an electric core and the electric core heating device have high heating efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lithium battery production, in particular to a carrying tool for cell heating and a cell heating device. BACKGROUND

[0002] In the production process of lithium batteries, the cells need to be heated for treatment. The existing cell heating process mainly uses a preheating furnace device for heating. In the preheating furnace device, a drawer type clamping device is usually used to load the cells. At the loading position, a robot loads the cells into the clamping device and pushes them into the preheating furnace for heating. After heating is completed, the cells are pushed to the unloading position, and the robot unloads the heated cells. Thus, the heating of the cells is completed. However, the loading and unloading of the cells requires a certain amount of time, and during the loading or unloading of the cells, the preheating furnace can only be in a waiting state. Therefore, the preheating furnace device of the related art has the problem of low heating efficiency. SUMMARY

[0003] Therefore, it is necessary to provide a carrying tool for cell heating and a cell heating device to solve the problem of low heating efficiency of the existing preheating furnace device.

[0004] In a first aspect, the present application provides a carrying tool for cell heating, comprising a rack, a plurality of clamping assemblies, and a conveying assembly, a first operating structure and a second operating structure arranged on the rack. Wherein the rack is configured with a loading area, a heating area and an unloading area arranged in sequence along a first direction. Further, each clamping assembly is configured with a clamping cavity. Further, the conveying assembly comprises a closed loop conveying belt. Part of the conveying section of the conveying belt corresponds to the loading area, the heating area and the unloading area. A plurality of clamping assemblies are connected along the circumference of the conveying belt, and the conveying belt is configured to make a circulating motion in the rack to drive the plurality of clamping assemblies connected thereon to pass through the loading area, the heating area and the unloading area one by one. Further, the first operating structure is configured to clamp the clamping assembly passing through the loading area, and the second operating structure is configured to open the clamping cavity of the clamping assembly passing through the unloading area.

[0005] The carrying tool for heating the battery cell of the present scheme is provided with a closed loop conveying belt, and the conveying sections of the conveying belt correspond to the feeding area, the heating area and the discharging area. The conveying belt can move in a loop in the rack, so that when the conveying belt moves in a loop in the rack, the plurality of clamping assemblies arranged around the conveying belt will pass through the feeding area, the heating area and the discharging area one by one. In this way, the conveying belt can drive each clamping assembly to pass through the feeding area, the heating area and the discharging area in turn, and complete the whole heating process of the battery cell. Moreover, the plurality of clamping assemblies arranged on the conveying belt can be in the process of heating the battery cell at the same time, that is, when one clamping assembly completes the heating of the battery cell in the heating area, the clamping assembly behind it can immediately enter the heating area without waiting for the loading or discharging of the battery cell on the clamping assembly. Therefore, the present scheme drives the clamping assembly to move back and forth in a loop through the conveying belt which can move in a loop in the rack, thereby saving the waiting time for loading and discharging the battery cell and greatly improving the efficiency of heating the battery cell.

[0006] In one of the embodiments, the conveying assembly comprises a first transmission assembly, a second transmission assembly and a driving assembly, the first transmission assembly and the second transmission assembly are arranged on the two sides of the rack along the first direction, the output end of the driving assembly is connected to the end of the first transmission assembly, and the conveying belt is arranged and transmissionally connected between the first transmission assembly and the second transmission assembly.

[0007] In one of the embodiments, the number of the conveying belts is two, the first transmission assembly comprises a first transmission shaft and two first transmission wheels arranged on the first transmission shaft, the second transmission assembly comprises a second transmission shaft, and two second transmission wheels are arranged on the second transmission shaft at positions corresponding to the positions of the two first transmission wheels. The line connecting the centers of one set of corresponding first transmission wheels and second transmission wheels is parallel to the first direction. Each conveying belt is engaged and matched between one set of corresponding first transmission wheels and second transmission wheels.

[0008] In one of the embodiments, the conveying assembly further comprises a pair of tensioning assemblies arranged at the two ends of the second transmission assembly along the second direction. Each tensioning assembly comprises a sliding groove extending along the first direction and a push rod for driving the second transmission assembly to move along the extension direction of the sliding groove. The first direction and the second direction are perpendicular to each other.

[0009] In one of the embodiments, the clamping assembly comprises a first clamping plate and a second clamping plate connected in sliding mode, the first clamping plate and the second clamping plate jointly define a clamping cavity, and the conveying belt is connected to the side of the second clamping plate away from the first clamping plate. When the clamping assembly is clamped, the first clamping plate and the second clamping plate are in a first state, and the first state is the state in which the distance between the first clamping plate and the second clamping plate is the smallest.

[0010] In one of the embodiments, an elastic member and a guide member are arranged between the first clamping plate and the second clamping plate. The elastic member is arranged between the first clamping plate and the second clamping plate and is configured to apply an elastic force to the first clamping plate away from the second clamping plate. The guide member is arranged perpendicularly to the first clamping plate and the second clamping plate, and one end of the guide member is connected to the first clamping plate and the other end penetrates through the second clamping plate.

[0011] In one of the embodiments, the carrying tool for heating battery cells further comprises at least one first adjusting rail arranged on the rack, the first adjusting rail extends along a first direction, and the first clamping plate abuts against the first adjusting rail and is capable of sliding along the extension direction of the first adjusting rail. The first adjusting rail comprises a first curved section corresponding to the feeding area, a second curved section corresponding to the discharging area, and a straight section between the first curved section and the second curved section, the straight section corresponds to the heating area, the end of the first curved section away from the straight section is prearranged with a height difference from the straight section, and the end of the second curved section away from the straight section is prearranged with a height difference from the straight section. The first curved section forms a first operation structure, and the second curved section forms a second operation structure. When the first clamping plate is located on the straight section, the first clamping plate and the second clamping plate are in the first state.

[0012] In one of the embodiments, a plurality of mounting assemblies are arranged on the first adjusting rail, each mounting assembly comprises a fixing member, a supporting member, and an adjusting member, the adjusting member is arranged between the fixing member and the supporting member, the fixing member is fixedly connected to the first adjusting rail, the supporting member is fixedly connected to the rack, and the adjusting member is used to adjust the mounting height of the first adjusting rail on the rack.

[0013] In one of the embodiments, the number of the first adjusting rails is two, and each of the first adjusting rails abuts against the opposite end of the first clamping plate. The carrying tool for heating battery cells further comprises at least one second adjusting rail, the second adjusting rail is arranged between the two first adjusting rails, the second adjusting rail extends along the first direction and passes through the heating area, and the second adjusting rail abuts against the top of the first clamping plate.

[0014] In one of the embodiments, the carrying tool for heating battery cells further comprises a supporting rail assembly arranged on the rack, the supporting rail assembly extends along the first direction, and the second clamping plate abuts against the supporting rail assembly and slides along the extension direction of the supporting rail assembly.

[0015] In the second aspect, the application provides a battery cell heating device, which comprises the carrying tool for heating battery cells in any of the above embodiments and a plurality of heating modules. The plurality of heating modules are arranged in the heating area and are spaced along the conveying belt, each heating module has a heating cavity for heating battery cells, and the conveying belt can drive the clamping assembly to enter the heating cavity one by one. In this scheme, the conveying belt which can make a circular motion on the rack drives the clamping assembly to move back and forth in a cycle, thereby saving the waiting time for loading and discharging battery cells and greatly improving the efficiency of heating battery cells.

[0016] In one embodiment, the distance between two adjacent clamping assemblies is equal to the distance between two adjacent heating cavities, and the distance between any two adjacent heating cavities is equal. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure schematic diagram of a carrying tool for heating an electric cell and a partial enlarged view of a conveying belt according to an embodiment of the present application;

[0018] Figure 2 A front view of a carrying tool for heating an electric cell according to an embodiment of the present application;

[0019] Figure 3 A structure schematic diagram of a carrying tool for heating an electric cell according to an embodiment of the present application, in which a clamping assembly is in a first state;

[0020] Figure 4 A structure schematic diagram of a carrying tool for heating an electric cell according to an embodiment of the present application, in which a clamping assembly is in a second state;

[0021] Figure 5 A structure schematic diagram of a guide rail assembly of a carrying tool for heating an electric cell according to an embodiment of the present application;

[0022] Figure 6 A structure schematic diagram of a first adjusting guide rail of a carrying tool for heating an electric cell according to another embodiment of the present application;

[0023] Figure 7 A structure schematic diagram of a mounting assembly of a carrying tool for heating an electric cell according to another embodiment of the present application;

[0024] Figure 8 A structure schematic diagram of a carrying tool for heating an electric cell according to an embodiment of the present application;

[0025] Figure 9 A structure schematic diagram of a carrying tool for heating an electric cell according to an embodiment of the present application; Figure 8 A partial enlarged view of position A in FIG. 6;

[0026] Figure 10 A partial enlarged view of position B in FIG. 6; Figure 8 A partial enlarged view of position B in FIG. 6;

[0027] Figure 11 A structure side view of a carrying tool for heating an electric cell according to an embodiment of the present application.

[0028] Label:1-frame;11-feeding area;12-heating area;121-heating module;1211-heating cavity;121a-first electromagnetic coil;121b-second induction coil;13-discharging area;2-clamping assembly;21-clamping cavity;22-first clamping plate;221-first roller;222-second roller;23-second clamping plate;231-third roller;24-elastic member;25-guide;3-conveying assembly;31-conveying belt;311-connection piece;32-first transmission assembly;321-first transmission shaft;322-first transmission wheel;33-second transmission assembly;331-second transmission shaft;332-second transmission wheel;34-driving assembly;341-driving motor;342-speed reducer;35-tensioning assembly;351-slotted guide;352-push rod;353-first tensioning member;354-second tensioning member;36-third transmission assembly;37-fourth transmission assembly;4-first adjusting guide rail;41-first curved section;42-second curved section;43-straight section;5-mounting assembly;51-fixing member;52-supporting member;53-adjusting member;6-second adjusting guide rail;7-supporting guide rail assembly;71-first supporting guide rail;72-second supporting guide rail;8-electric core. DETAILED DESCRIPTION

[0029] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described and it is therefore contemplated to cover all such modifications as fall within the scope of the application. It is to be understood that the specific embodiments of the present application are presented by way of example only and that the scope of the present application is not limited by the description of the specific embodiments.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In addition, the terms "first", "second", etc. are used only for descriptive purposes and do not connote or imply a relative importance or an ordering between the indicated technical features. Thus, a feature defined with "first", "second" may include at least one of the features explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited.

[0032] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0034] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0035] Referring to Figure 1 and Figure 2 , Figure 1 shows the structure of the carrying tool for heating the battery cell and the partial enlarged view of the conveying belt 31 in an embodiment of the present application, Figure 2 shows the front view of the carrying tool for heating the battery cell in an embodiment of the present application, which provides a carrying tool for heating the battery cell, comprising a rack 1, a plurality of clamping assemblies 2, and a conveying assembly 3, a first operating structure and a second operating structure provided on the rack 1.

[0036] The rack 1 is configured with the feeding area 11, the heating area 12 and the discharging area 13 arranged in sequence along the first direction X, each clamping assembly 2 loads the battery cell 8 in the feeding area 11, heats the battery cell 8 in the heating area 12, and discharges the battery cell 8 in the discharging area 13, so that the battery cell 8 flows into the next processing procedure. Specifically, the first direction X can be the length direction of the rack 1.

[0037] Further, each clamping assembly 2 is configured with a clamping cavity 21 for loading the battery cell 8, i.e. the battery cell 8 is carried in the clamping cavity 21 and the heating process is completed. The specific number of clamping cavities 21 in each clamping assembly 2 is not limited in the present application, as long as the function of loading the battery cell 8 can be achieved. For example, two clamping cavities 21 can be arranged in each clamping assembly 2.

[0038] Further, the conveying assembly 3 includes a closed loop conveying belt 31, part of the conveying section of the conveying belt 31 corresponds to the feeding area 11, the heating area 12 and the discharging area 13, a plurality of clamping assemblies 2 are connected along the circumference on the conveying belt 31, and the conveying belt 31 is configured to be able to make a circulating motion in the rack 1 to drive the plurality of clamping assemblies 2 connected thereon to pass through the feeding area 11, the heating area 12 and the discharging area 13 one by one.

[0039] Further, the first operation structure is configured to clamp the clamping assembly 2 passing through the feeding area 11, so as to stably place the battery cell 8 in the clamping cavity 21 and complete the entire heating process. The second operation structure is configured to open the clamping cavity 21 of the clamping assembly 2 passing through the discharging area 13, so as to load or take out the battery cell 8 from the clamping cavity 21.

[0040] The use method of the battery cell heating carrying tool in the embodiment is as follows: when the clamping assembly 2 passes through the feeding area 11, the battery cell 8 is placed in the clamping cavity 21 of the clamping assembly 2, and the first operation structure clamps the clamping assembly 2; under the driving of the conveying belt 31, the clamping assembly 2 loaded with the battery cell 8 enters the heating area 12 and heats the battery cell 8; after heating, the conveying belt 31 continues to drive the clamping assembly 2 loaded with the battery cell 8 to enter the discharging area 13; when the clamping assembly 2 passes through the discharging area 13, the second operation structure opens the clamping cavity 21 of the clamping assembly 2, takes out the heated battery cell 8 and flows into the next processing procedure; the clamping assembly 2 after discharging the battery cell 8 leaves the discharging area 13, and after turning 180° under the driving of the conveying belt 31, continues to move along the circumference of the conveying belt 31, and finally returns to the feeding area 11.

[0041] Meanwhile, the conveying belt 31 is in a circulating motion on the rack 1, and a plurality of clamping assemblies 2 are connected in the circumferential direction of the conveying belt 31. When one of the clamping assemblies 2 passes through the feeding area 11 and completes the loading of the battery cell 8, another clamping assembly 2 located behind it will enter the feeding area 11 and load the battery cell 8. In this way, after each clamping assembly 2 loaded with the battery cell 8 is heated, another clamping assembly 2 loaded with the battery cell 8 can enter the heating area in time to heat the battery cell 8, saving the waiting time for loading and unloading the battery cell 8, and greatly improving the heating efficiency.

[0042] It should be noted that the specific number of the clamping assembly 2 of the present application can be adjusted adaptively according to the specific needs of the battery cell 8 heating process.

[0043] In addition, the specific structure of the conveying belt 31 is not limited in the present application, as long as it is configured as a closed loop and can drive the clamping assembly 2 to make a circulating motion on the rack 1 to realize the function of circulating conveying. For example, the conveying belt 31 can rotate around its own circumference to realize the circulating motion on the rack 1. For example, the conveying belt 31 can be a chain structure or a belt structure. Referring to Figure 1 For example, the top end of the conveying belt 31 towards the clamping assembly 2 can be provided with a plurality of connecting pieces 311, which are connected to the bottom of the clamping assembly 2 by bolts, thereby driving the clamping assembly 2 to move. For example, the connecting piece 311 can be configured as a sheet structure, and a plurality of connecting pieces 311 are arranged in sequence on both sides of the conveying belt 31 in the width direction.

[0044] In some embodiments, the battery cell heating carrier tool of the present application can also be provided with a mechanical hand (not shown in the figure), which is used to load the battery cell 8 into the clamping cavity 21 of the clamping assembly 2 in the feeding area 11, and unload the battery cell 8 in the clamping cavity 21 in the discharging area 13.

[0045] Specifically, the above conveying assembly 3 includes a first transmission assembly 32, a second transmission assembly 33 and a driving assembly 34. The first transmission assembly 32 and the second transmission assembly 33 are respectively arranged on both sides of the rack 1 along the first direction X. The output end of the driving assembly 34 is connected to the end of the first transmission assembly 32, and the conveying belt 31 is arranged and transmissionally connected between the first transmission assembly 32 and the second transmission assembly 33. Among them, the first transmission assembly 32 and the second transmission assembly 33 respectively provide support force and transmission force for the conveying belt 31 at both ends of the rack 1 along the first direction X, so that the conveying belt 31 reliably rotates around its own circumference, and drives the clamping assembly 2 to pass through the above feeding area 11, heating area 12 and discharging area 13 in sequence, to complete the entire heating process of the battery cell 8, which is simple in structure and high in reliability.

[0046] The driving assembly 34 may, for example, include a driving motor 341 and a speed reducer 342. The output end of the driving motor 341 is connected to the input end of the speed reducer 342, and the output end of the speed reducer 342 is connected to the end of the first transmission assembly 32. The driving motor 341 and the speed reducer 342 not only have strong versatility and long service life, but also can make the transmission ratio of the conveying assembly 3 more fine and facilitate adaptive adjustment of the rotation speed of the conveying belt 31 to adapt to the process requirements of heating of the battery cell 8.

[0047] In some embodiments, the battery cell 8 heating carrier tool further includes a control unit (not shown in the figure), which is electrically connected with the driving assembly 34 described above. The control unit is configured to control the driving speed, driving time, etc. of the driving assembly 34, so that the conveying belt 31 drives the clamping assembly 2 to move according to the required process requirements.

[0048] In some embodiments, the number of the conveying belt 31 is two, and the two conveying belts 31 are arranged along the second direction Y to ensure the stability of the clamping assembly 2 during movement. Specifically, the second direction Y can be the width direction of the rack 1.

[0049] Further, the first transmission assembly 32 includes a first transmission shaft 321 and two first transmission wheels 322 arranged on the first transmission shaft 321, and the second transmission assembly 33 includes a second transmission shaft 331, which is provided with two second transmission wheels 332 at positions corresponding to the positions of the two first transmission wheels 322. The line connecting the centers of a corresponding set of first transmission wheels 322 and second transmission wheels 332 is parallel to the first direction X. Each conveying belt 31 is engaged between a corresponding set of first transmission wheels 322 and second transmission wheels 332. The use of the conveying belt 31 to engage and drive the first transmission wheels 322 and the second transmission wheels 332 has long service life, convenient use and maintenance, and high reliability and stability.

[0050] Referring to Figure 1 and Figure 2 , in order to facilitate adjustment of the tension of the conveying belt 31 to ensure the reliability and stability of the movement of the clamping assembly 2, in some embodiments, the conveying assembly 3 further includes a pair of tensioning assemblies 35 arranged at the two ends of the second transmission assembly 33 along the second direction Y. Each tensioning assembly 35 includes a sliding groove 351 and a push rod 352. The sliding groove 351 extends along the first direction X, and at least part of the structure of the second transmission assembly 33 is slidingly installed in the sliding groove 351. The push rod 352 is used to drive the second transmission assembly 33 to move along the extension direction of the sliding groove 351.

[0051] Specifically, the tensioning assembly 35 comprises a first tensioning member 353 and a second tensioning member 354. The first tensioning member 353 is fixedly connected to one side of the rack 1 along the second direction Y, and the sliding groove 351 is configured on the first tensioning member 353. The second tensioning member 354 is slidingly connected in the sliding groove 351. Further, the first tensioning member 353 and the second tensioning member 354 are provided with the push rod 352. One end of the push rod 352 penetrates through the first tensioning member 353 and is threadedly connected with the first tensioning member 353. The other end of the push rod 352 abuts against the second tensioning member 354. The second transmission assembly 33 is connected to one second tensioning member 354 at each end along the second direction Y. When the two push rods 352 simultaneously rotate in the same direction or in the opposite direction relative to the first tensioning member 353, the push rod 352 pushes the second tensioning member 354 to move forward or backward along the first direction X, thereby driving the second transmission assembly 33 to move forward or backward along the first direction X. The distance between the first transmission assembly 32 and the second transmission assembly 33 changes. Since the conveying belt 31 is arranged between the first transmission assembly 32 and the second transmission assembly 33, when the distance between the first transmission assembly 32 and the second transmission assembly 33 changes, the tension of the conveying belt 31 also changes, thereby achieving the adjustment of the tension of the conveying belt 31.

[0052] Referring to Figure 3 and Figure 4 , Figure 3 Fig. 1 shows a structure schematic diagram of a clamping assembly 2 in a carrying tool for heating battery cells in a first state, Figure 4 Fig. 2 shows a structure schematic diagram of the clamping assembly 2 in the carrying tool for heating battery cells in a second state. The first state is a state in which the distance between the first clamping plate 22 and the second clamping plate 23 is the smallest. The second state is a state in which the distance between the first clamping plate 22 and the second clamping plate 23 is the largest.

[0053] In some embodiments, the clamping assembly 2 includes a first clamping plate 22 and a second clamping plate 23 connected by sliding, the first clamping plate 22 and the second clamping plate 23 together define a clamping cavity 21, and the conveying belt 31 is connected to the side of the second clamping plate 23 away from the first clamping plate 22; when the clamping assembly 2 is clamped, the first clamping plate 22 and the second clamping plate 23 are in a first state. Under the action of the first operating structure, the first clamping plate 22 moves towards the second clamping plate 23 and finally is in the first state, at this time, the battery cell 8 is placed in the clamping cavity 21 and is stably clamped between the first clamping plate 22 and the second clamping plate 23, and at the same time, the first clamping plate 22 and the second clamping plate 23 are in the first state and enter the heating area, avoiding interference with the heating device when the battery cell 8 is heated. After heating is completed, under the action of the second operating structure, the first clamping plate 22 moves away from the second clamping plate 23, and the clamping cavity 21 is opened, at this time, the first clamping plate 22 and the second clamping plate 23 are in a second state, facilitating loading or unloading of the battery cell 8. By adopting the arrangement mode of the first clamping plate 22 and the second clamping plate 23, the first operating structure and the second operating structure can clamp or open the clamping assembly 2.

[0054] In some embodiments, the number of conveying belts 31 is two, for example, the first clamping plate 22 is located on the top of the second clamping plate 23, and the connecting piece 311 at the top end of the conveying belt 31 is bolted to the bottom of the second clamping plate 23. For example, the first clamping plate 22 and the second clamping plate 23 can be configured as a rectangular plate structure.

[0055] In some embodiments, an elastic member 24 and a guide member 25 are arranged between the first clamping plate 22 and the second clamping plate 23, the elastic member 24 is arranged between the first clamping plate 22 and the second clamping plate 23 and is configured to be able to apply an elastic force away from the second clamping plate 23 to the first clamping plate 22. The guide member 25 is arranged perpendicular to the first clamping plate 22 and the second clamping plate 23, one end of the guide member 25 is connected to the first clamping plate 22, and the other end penetrates through the second clamping plate 23. The elastic member 24 applies an elastic force away from the second clamping plate 23 to the first clamping plate 22, which is beneficial to opening of the clamping cavity 21, and the guide member 25 provides guidance for the first clamping plate 22 and the second clamping plate 23 to approach and move away, so that the first clamping plate 22 and the second clamping plate 23 always move in a direction perpendicular to the two plates, avoiding deviation.

[0056] Specifically, the elastic member 24 can be provided in several numbers, for example, the number of elastic members 24 can be even, each elastic member 24 is located at two ends of the clamping assembly 2 along the second direction Y, and is symmetrically distributed in pairs. For example, the number of elastic members 24 can be 2, 4, 6 or other numbers. For example, the elastic member 24 can be a spring, and a spring guide rod can also be arranged between the first clamping plate 22 and the second clamping plate 23, one end of the spring guide rod is connected to the first clamping plate 22, the other end penetrates through the second clamping plate 23, and the spring is sleeved on the spring guide rod.

[0057] Correspondingly, the guide 25 can also be provided with several, for example, the guide 25 and the elastic piece 24 can be arranged adjacent to each other, and the number of the guide 25 can be even. For example, the number of the guide 25 can be 2, 4, 6 or other. For example, the first clamping plate 22 is arranged with a clamping jaw on the side facing the second clamping plate 23, one end of the guide 25 is clamped and fixed on the clamping jaw, and the second clamping plate 23 is correspondingly arranged with a through hole, and the end of the guide 25 away from the first clamping plate 22 passes through the through hole. When the first clamping plate 22 approaches or moves away from the second clamping plate 23, the through hole limits the sliding direction of the guide 25, so that the first clamping plate 22 can only approach or move away from the second clamping plate 23 along the extension direction of the guide rod.

[0058] It should be noted that the specific number and arrangement position of the elastic piece 24 and the guide 25 are not limited in the present application, and the elastic piece 24 and the guide 25 can be arranged separately or integrally, that is, the elastic piece 24 is sleeved on the guide 25. When arranged separately, the number of the two can be the same or different, and when arranged integrally, the number of the two is equal.

[0059] Referring to Figure 1 , Figure 2 and Figure 5 , Figure 5 The structure of the guide rail assembly in the carrying tool for heating the battery cell 8 in an embodiment of the present application is shown, and the carrying tool for heating the battery cell 8 can further include a guide rail assembly, which includes at least one first adjusting guide rail 4 arranged on the rack 1, the first adjusting guide rail 4 extends along the first direction X, and the first clamping plate 22 abuts against the first adjusting guide rail 4 and can slide along the extension direction of the first adjusting guide rail 4.

[0060] Specifically, the first adjusting guide rail 4 includes a first curved section 41 arranged corresponding to the feeding area 11, a second curved section 42 arranged corresponding to the discharging area 13, and a straight section 43 located between the first curved section 41 and the second curved section 42, the straight section 43 is partially arranged corresponding to the heating area 12, the end of the first curved section 41 away from the straight section 43 is prearranged with a height difference from the straight section 43, and the end of the second curved section 42 away from the straight section 43 is prearranged with a height difference from the straight section 43; the first curved section 41 forms a first operation structure, and the second curved section 42 forms a second operation structure; when the first clamping plate 22 is located on the straight section 43, the first clamping plate 22 and the second clamping plate 23 are in the first state. The height difference between the end of the first curved section 41 away from the straight section 43 and the straight section 43 and the height difference between the end of the second curved section 42 away from the straight section 43 and the straight section 43 are equal, and are the height difference required when the first clamping plate 22 and the second clamping plate 23 change between the first state and the second state.

[0061] When the clamping assembly 2 is located at the end of the first curved section 41 away from the straight section 43, the first clamping plate 22 and the second clamping plate 23 are in the second state, i.e. the state of maximum distance between the two. Under the driving of the conveying belt 31, the first clamping plate 22 slides along the first curved section 41 towards the straight section 43, and under the constraint of the first curved section 41, the first clamping plate 22 moves towards the second clamping plate 23 and finally reaches the first state, i.e. the state of minimum distance between the two, at which the first clamping plate 22 and the second clamping plate 23 are clamped between the conveying belt 31 and the first adjusting guide rail 4. Correspondingly, when the clamping assembly 2 moves from the straight section 43 towards the second curved section 42, under the guidance of the second curved section 42, the first clamping plate 22 moves away from the second clamping plate 23, and finally the two are in the second state due to the limiting action of the second curved section 42, and the clamping cavity 21 is opened. In this way, when the battery cell 8 passes through the heating area 12, the clamping assembly 2 can achieve the clamping effect on the battery cell 8 without setting an additional driving power structure, thereby reducing the cost of the entire device.

[0062] In some embodiments, referring to Figure 5 , the number of the first adjusting guide rails 4 is two, which are respectively in abutment with the opposite ends of the first clamping plate 22. The guide rail assembly further comprises at least one second adjusting guide rail 6, which is arranged between the two first adjusting guide rails 4 and extends along the first direction X and passes through the heating area 12. The second adjusting guide rail 6 is in abutment with the top of the first clamping plate 22. When the clamping assembly 2 passes through the feeding area 11 and enters the heating area 12, the first adjusting guide rails 4 provide constraint force for the clamping assembly 2 on both sides of the first clamping plate 22, and the second adjusting guide rail 6 is located between the two first adjusting guide rails 4 and provides constraint force for the clamping assembly 2 in the middle of the first clamping plate 22. The arrangement of the second adjusting guide rail 6 further improves the reliability of the first clamping plate 22 and the second clamping plate 23 in clamping the battery cell 8, and avoids interference between the clamping assembly 2 and the heating device when passing through the heating area 12.

[0063] For example, the first clamping plate 22 comprises first rollers 221 arranged at both ends and rotatable about their own axes, and a second roller 222 arranged at the top and rotatable about its own axis. The first rollers 221 are respectively in abutment with the two first adjusting guide rails 4 and slide along the first adjusting guide rails 4, and the second roller 222 is in abutment with the second adjusting guide rail 6 and slides along the second adjusting guide rail 6.

[0064] For example, the first adjusting guide rail 4 can be configured as a groove-shaped guide rail, and the outer peripheral wall of the first roller 221 is in abutment with the double side walls of the groove-shaped guide rail. Referring to Figure 6 , Figure 6The structure diagram of another embodiment of the first adjusting rail 4 in the carrying tool for heating the battery cell is shown. Exemplarily, the first adjusting rail 4 can be configured as a single-sided rail, and the outer peripheral wall of the first roller 221 abuts against the bottom of the single-sided rail. Correspondingly, the elastic member 24 between the first clamping plate 22 and the second clamping plate 23 provides the elastic force of the first clamping plate 22 away from the second clamping plate 23, so that the roller of the first clamping plate 22 is pressed on the first adjusting rail 4 and the second adjusting rail 6.

[0065] In some embodiments, a plurality of mounting assemblies 5 are arranged on the first adjusting rail 4, the mounting assembly 5 includes a fixing member 51, a supporting member 52 and an adjusting member 53, the adjusting member 53 is arranged between the fixing member 51 and the supporting member 52, the fixing member 51 is fixedly connected with the first adjusting rail 4, the supporting member 52 is fixedly connected with the rack 1, and the adjusting member 53 is used for adjusting the installation height of the first adjusting rail 4 on the rack 1. By adjusting the installation height of the first adjusting rail 4 on the rack 1, the size of the first clamping plate 22 and the second clamping plate 23 in the height direction is adapted, and by adjusting the height of the first adjusting rail 4, the height difference of the first clamping plate 22 and the second clamping plate 23 in the first state can be changed to adapt to battery cells 8 of different heights.

[0066] Correspondingly, a plurality of mounting assemblies 5 described above can also be arranged on the second adjusting rail 6, and by adjusting the adjusting member 53, the first adjusting rail 4 and the second adjusting rail are located in the same height range.

[0067] Referring to Figure 5 , exemplarily, the top of the rack 1 can also be provided with a top plate, the supporting member 52 can be configured as a plate structure, and the supporting member 52 is bolted on the top plate. The fixing member 51 can be configured as a block structure, and the side of the fixing member 51 facing the first adjusting rail 4 or the second adjusting rail 6 is provided with a groove, and the top end of the first adjusting rail 4 or the second adjusting rail 6 is accommodated in the groove and fixedly connected on the fixing member 51. The adjusting member 53 can be configured as a screw rod structure, and the adjusting member 53 is bolted between the fixing member 51 and the supporting member 52. By adjusting the distance between the fixing member 51 and the supporting member 52 through the adjusting member 53, the installation height of the first adjusting rail 4 or the second adjusting rail 6 on the rack 1 is adjusted.

[0068] Referring to Figure 7 , Figure 7 The structure diagram of another embodiment of the mounting assembly 5 in the carrying tool for heating the battery cell is shown. Exemplarily, a plurality of columns are arranged on the rack 1, and a supporting member 52 is arranged between two adjacent columns, and the fixing member 51 is connected / installed on the supporting member 52.

[0069] In some embodiments, referring to Figure 1 and Figure 2The guide rail assembly further comprises a support guide rail assembly 7 arranged on the frame 1 and extending along the first direction X, and the second clamping plate 23 abuts against the support guide rail assembly 7 and slides along the extension direction of the support guide rail assembly 7. The support guide rail assembly 7 is used to provide a support force to the clamping assembly 2, so that the clamping assembly 2 moves stably around the circumference of the conveying belt 31.

[0070] For example, the support guide rail assembly 7 comprises a first support guide rail 71 and a second support guide rail 72, and the first support guide rail 71 is located above the second support guide rail 72. When the clamping assembly 2 sequentially passes through the feeding area 11, the heating area 12 and the discharging area 13, the first clamping plate 22 slides along the first adjusting guide rail 4 and the second adjusting guide rail 6, and the second clamping plate 23 slides along the first support guide rail 71. When the clamping assembly 2 completes the discharging of the battery cell 8, the first clamping plate 22 is separated from the first adjusting guide rail 4, the second clamping plate 23 is separated from the first support guide rail 71, the clamping assembly 2 is flipped by 180°, the second clamping plate 23 contacts the second support guide rail 72 and slides along the second support guide rail 72, and the first clamping plate 22 is suspended below the second clamping plate 23. At this time, the conveying belt 31 will continue to drive the clamping assembly 2 to move below the frame 1 until the clamping assembly 2 is sent back to the feeding area 11, so that the clamping assembly 2 is moved circularly around the circumference of the conveying belt 31 under the cooperation of the conveying assembly 3 and the guide rail assembly.

[0071] For example, the first support guide rail 71 and the second support guide rail 72 are respectively provided with two, and are arranged at intervals along the second direction Y. For example, the second clamping plate 23 comprises a third roller 231 arranged at both ends and rotatable about its own axis, and the third roller 231 abuts against the track of the first support guide rail 71 or the second support guide rail 72 and rolls along the first direction X. For example, the first support guide rail 71 can be configured as a groove-shaped guide rail, and the second support guide rail 72 can be configured as an “L”-shaped guide rail.

[0072] In some embodiments, the conveying assembly 3 can further comprise a third transmission assembly 36 and a fourth transmission assembly 37, and the conveying belt 31 is arranged and transmissionally connected between the first transmission assembly 32, the second transmission assembly 33, the third transmission assembly 36 and the fourth transmission assembly 37. At this time, one end of the conveying belt 31 is arranged corresponding to the first support guide rail 71, and the other end is arranged corresponding to the second support guide rail 72.

[0073] The carrying tool for heating battery cells provided in the application realizes the circular movement of the plurality of clamping assemblies 2 through the cooperation of the conveying assembly 3 and the guide rail assembly, and the plurality of clamping assemblies 2 sequentially carry the battery cells 8 and perform the heating process of the battery cells 8, which not only has a simple structure and high reliability, but also greatly improves the heating efficiency and can meet the process requirements of various battery cell 8 heating.

[0074] In addition, at present, the battery cell 8 is mainly heated and shaped in the following ways. The first way is to heat the battery cell 8 and then transport the battery cell 8 to the pressure device for shaping. The other way is to heat the battery cell 8 and then transport the battery cell 8 to the pressure device for heating, and then shape the battery cell 8 through the pressure device.

[0075] The above two ways of heating and shaping the battery cell 8 have the following problems. In the process of transporting the heated battery cell 8 to the pressure device, the heat on the battery cell 8 is quickly lost, the energy consumption for heating and shaping the battery cell 8 is high, and the heating efficiency is low, which cannot meet the current demand for energy saving and high efficiency of heating and shaping the battery cell 8.

[0076] Based on this, referring to Figure 8 , Figure 9 , Figure 10 and Figure 11 , the embodiment of the present application also provides a battery cell heating device for heating the battery cell 8, which comprises the above-mentioned battery cell heating carrier tool.

[0077] The battery cell heating device further comprises a plurality of heating modules 121, which are located in the heating area 12 of the battery cell heating carrier tool and are arranged at intervals along the conveying belt 31. Each heating module 121 has a heating cavity 1211 for heating the battery cell 8, and the conveying belt 31 can drive the clamping assembly 2 to enter the heating cavity 1211 one by one.

[0078] It should be noted that the battery cell heating device of the embodiment of the present application is preferably used for heating a square battery cell, but of course, it can also be used for heating other semi-finished products, finished products, products or structural parts that need to be heated, and the specific implementation is not limited.

[0079] Referring to Figure 8 , the circulation direction along the first direction X is the conveying direction of the conveying belt 31. The battery cell heating device of the present application can dock the pressure device at the discharging area 13 at the end of the conveying belt 31. The clamping assembly 2 drives the battery cell 8 thereon to pass through the last heating module 121 on the conveying belt 31 and is heated, and then directly enters the pressure device for shaping process, thereby reducing the heat loss in the process of transferring the heated battery cell 8 to the pressure device, and improving the production efficiency of the battery cell 8. In addition, the battery cell heating device of the present application drives the clamping assembly to move circularly through the conveying belt which can move circularly on the rack, thereby saving the waiting time for loading and unloading the battery cell, and greatly improving the efficiency of heating the battery cell.

[0080] Referring to Figure 9The heating module 121 can be an electromagnetic induction heating device, i.e., using electromagnetic induction heating to inductively heat the battery cell 8 in the heating cavity 1211. For example, the heating module 121 can include a first electromagnetic coil 121a and a second induction coil 121b arranged opposite and spaced apart from each other, and the first electromagnetic coil 121a and the second induction coil 121b define a heating cavity 1211 for the battery cell 8 to pass through and heat the battery cell 8. The specific structure of the heating module 121 is not limited in the present application, as long as it can achieve the function of heating the battery cell 8. For example, the heating module 121 can also be a resistance wire heating module, an infrared heating module, etc.

[0081] It should be noted that, referring to Figure 10 and Figure 11 , the clamping cavity 21 of the clamping assembly 2 can support and place multiple battery cells 8, which are arranged longitudinally and transversely on the clamping cavity 21. When the clamping assembly 2 drives the multiple battery cells 8 thereon into the heating cavity 1211 formed by the heating module 121, the heating module 121 inductively heats all the battery cells 8 on the clamping assembly 2, improving the heating efficiency of the battery cells 8.

[0082] It is not difficult to understand that when the above-mentioned battery cell heating device heats the battery cell 8, the battery cell 8 can be first placed in the clamping cavity 21 of the clamping assembly 2, and the feeding of the battery cell 8 in the feeding area 11 is completed. The clamping assembly 2 then slides along the conveying belt 31, driving the battery cell 8 to pass through each heating module 121 spaced apart on the conveying belt 31 in turn, and making the battery cell 8 enter the heating cavity 1211 of each heating module 121 in turn. The heating module 121 can inductively heat the battery cell 8 in the heating cavity 1211. In this way, the battery cell 8 is heated during conveying, without the need to set a traditional preheating furnace or other heating device, reducing heat loss during heating of the battery cell 8.

[0083] At the same time, after the clamping assembly 2 drives the battery cell 8 thereon to pass through the last heating module 121 on the conveying belt 31 and is heated, it can directly enter the pressure device for the shaping process, thereby reducing the heat loss during the transfer of the heated battery cell 8 to the pressure device.

[0084] Moreover, the step-by-step heating of the battery cell 8 by the multiple heating modules 121 can improve the heating efficiency of the battery cell 8, and can also make the surface and internal temperature of the battery cell 8 have good consistency, improving the heating quality of the battery cell 8 and ensuring the quality of the heated battery cell 8 before pressure shaping.

[0085] The electric core heating device of the present application can effectively reduce heat loss during the heating process of the electric core 8 and improve the heating efficiency of the electric core 8 through the cooperation of the conveying belt 31, the clamping assembly 2 and the plurality of heating modules 121.

[0086] It should be noted that the electric core 8 is in a relatively fluffy state before heating, which may collide with other structural components during the heating or conveying process, affecting the heating efficiency of the electric core 8 and the heating consistency of the electric core 8.

[0087] Based on this, in some embodiments of the present application, referring to 10 and Figure 11 The clamping assembly 2 includes a first clamping plate 22 and a second clamping plate 23 connected by sliding, the first clamping plate 22 and the second clamping plate 23 together define a clamping cavity 21, and the conveying belt 31 is connected to the side of the second clamping plate 23 away from the first clamping plate 22; when the clamping assembly 2 is clamped, the first clamping plate 22 and the second clamping plate 23 are in a first state. Under the action of the first operation structure, the first clamping plate 22 and the second clamping plate 23 are close to each other and clamped, at this time, the electric core is placed in the clamping cavity 21 and is stably clamped between the first clamping plate 22 and the second clamping plate 23, and the first clamping plate 22 and the second clamping plate 23 are in the first state and are heated one by one into the heating cavity 1211 of each heating module 121.

[0088] Meanwhile, it should be noted that, referring to Figure 9 The heating module 121 can include a first electromagnetic coil 121a and a second induction coil 121b arranged in an upper and lower relative interval and cooperating with each other, and the first electromagnetic coil 121a and the second induction coil 121b define a heating cavity 1211 for the electric core 8 to pass through and heat the electric core 8. When the electric core 8 is in a fluffy state, in order to avoid the electric core 8 from colliding with other structural components, the distance between the first electromagnetic coil 121a and the second induction coil 121b is increased to a certain extent to avoid the electric core 8 from colliding with the first electromagnetic coil 121a. However, this will increase the width of the heating cavity 1211, thereby reducing the heating efficiency of the electric core 8.

[0089] Based on this, the clamping assembly 2 is arranged in the embodiments of the present application, the clamping assembly 2 is arranged as the first clamping plate 22 and the second clamping plate 23 connected by sliding, and the first clamping plate 22 and the second clamping plate 23 can keep close to each other and clamp the electric core 8 when the electric core 8 passes through each heating cavity 1211 one by one, which can make the first electromagnetic coil 121a as close to the electric core 8 as possible, i.e. to reduce the width of the heating cavity 1211 as much as possible, thereby improving the heating efficiency of the electric core 8.

[0090] Moreover, the above arrangement can keep the battery cell 8 in a compressed state during the whole process of passing through the heating cavities 1211, ensuring the consistency of the heating of the battery cell 8 by the heating modules 121, so that the battery cell 8 is stably heated and warmed up.

[0091] In some embodiments of the present application, the first clamping plate 22 and the second clamping plate 23 are both configured as non-metal structural members.

[0092] Specifically, the first clamping plate 22 and the second clamping plate 23 can be made of polyether ketone polymer resin material, epoxy glass fiber or carbon fiber material, etc. It can be understood that by configuring the first clamping plate 22 and the second clamping plate 23 as non-metal structural members, the heating of the heating modules 121 to the first clamping plate 22 and the second clamping plate 23 can be avoided, so that the heating is concentrated on the first clamping plate 22 and the second clamping plate 23, and the battery cell 8 cannot be heated or cannot be completely heated.

[0093] In some embodiments of the present application, referring to Figure 9 The clamping assembly 2 has a plurality of clamping assemblies 2, and the plurality of clamping assemblies 2 are spaced apart on the conveying belt 31, and the spacing between the adjacent two clamping assemblies 2 is equal to the spacing between the adjacent two heating cavities 1211. The spacing between any two adjacent heating cavities 1211 is equal.

[0094] Specifically, the plurality of heating modules 121 are spaced apart on the conveying belt 31 and located between the feeding area 12 and the discharging area 13, and the plurality of clamping assemblies 2 are spaced apart along the track of the conveying belt 31. All the heating modules 121 remain in a fixed state, the spacing between the feeding area 12 and the heating module 121 closest to the feeding area 12 on the conveying belt 31 is equal to the spacing between the adjacent two heating cavities 1211, and the spacing between the discharging area 13 and the heating module 121 closest to the discharging area 13 is also equal to the spacing between the adjacent two heating cavities 1211.

[0095] In this way, when the first clamping assembly 2 conveys the battery cell 8 thereon along the conveying belt 31 from the feeding area 12 to the discharging area 13, the last clamping assembly 2 at this time is located in the feeding area 12, and the battery cell 8 on the remaining one or more clamping assemblies 2 is in the heating cavity 1211 corresponding to the heating module 121. At this time, the conveying belt 31 is stopped, and the battery cell 8 on the first clamping assembly 2 that has completed the heating can be taken out and directly transferred to the pressure device for pressure shaping by the mechanical hand or other transfer device.

[0096] Meanwhile, the unheated battery cell 8 is placed on the last clamping assembly 2 by the mechanical arm or other transfer device. That is, the unloading action of the heated battery cell 8 and the loading action of the unheated battery cell 8 are simultaneously performed by stopping the conveying belt 31, and during the time period of loading and unloading the battery cell 8, the battery cell 8 in the heating cavity 1211 is in a stationary state under the support of the corresponding clamping assembly 2, and the heating efficiency of the heating module 121 to the battery cell 8 is the highest at this time.

[0097] In this way, not only the efficiency of loading and unloading the battery cell 8 is improved, but also the heating efficiency of the heating module 121 to the battery cell 8 can be effectively ensured, avoiding the heat loss caused by the battery cell 8 not being in the heating cavity 1211 during the loading and unloading process of the battery cell 8. At the same time, the multiple clamping assemblies 2 are synchronously conveyed or stopped with the conveying belt 31, which can realize the effect of synchronously heating a batch of battery cells 8, further improving the heating efficiency of the battery cell 8, that is, improving the production efficiency of the battery cell 8.

[0098] In addition, it is easy to understand that by making the distance between the two adjacent clamping assemblies 2 equal to the distance between the two adjacent heating cavities 1211, the current clamping assembly 2 with the battery cell 8 thereon just moves out of a heating cavity 1211, and the next clamping assembly 2 just enters the heating cavity 1211, so that the continuity of the induction heating of the battery cell 8 is improved, further improving the heating efficiency of the battery cell 8, that is, improving the production efficiency of the battery cell 8.

[0099] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0100] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, some modifications and improvements can be made, which are all within the scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A transport fixture for heating battery cells, characterized in that, include: The frame (1) is constructed with a feeding area (11), a heating area (12) and a discharging area (13) arranged sequentially along a first direction; Multiple clamping components (2), each of which is configured with a clamping cavity (21); A conveying assembly (3) is provided on the frame (1) and includes a closed loop conveyor belt (31). Part of the conveying section of the conveyor belt (31) is arranged corresponding to the loading area (11), the heating area (12) and the unloading area (13). The multiple clamping assemblies (2) are connected to the conveyor belt (31) circumferentially. The conveyor belt (31) is configured to be able to circulate on the frame to drive the multiple clamping assemblies (2) connected thereto to pass through the loading area (11), the heating area (12) and the unloading area (13) one by one. The first operating structure and the second operating structure are both located on the frame (1). The first operating structure is configured to clamp the clamping component (2) passing through the loading area (11). The second operating structure is configured to open the clamping cavity (21) of the clamping component (2) passing through the unloading area (13). The clamping assembly (2) includes a first clamping plate (22) and a second clamping plate (23) that are slidably connected. The first clamping plate (22) and the second clamping plate (23) together define the clamping cavity (21). The conveyor belt (31) is connected to the side of the second clamping plate (23) that is away from the first clamping plate (22). When the clamping assembly (2) is clamped, the first clamping plate (22) and the second clamping plate (23) are in a first state, which is the state when the distance between the first clamping plate (22) and the second clamping plate (23) is the smallest. The battery cell heating transport fixture also includes at least one first adjusting guide rail (4) disposed on the frame (1), the first adjusting guide rail (4) extends along the first direction, and the first clamping plate (22) abuts against the first adjusting guide rail (4) and can slide along the extension direction of the first adjusting guide rail (4). The first adjusting guide rail (4) includes a first curved section (41) corresponding to the loading area (11), a second curved section (42) corresponding to the unloading area (13), and a straight section (43) located between the first curved section (41) and the second curved section (42). A portion of the guide rail section of the straight section (43) is provided corresponding to the heating area (12). The end of the first curved section (41) away from the straight section (43) has a predetermined height difference with the straight section (43), and the end of the second curved section (42) away from the straight section (43) has a predetermined height difference with the straight section (43). The first curved section (41) forms the first operating structure, and the second curved section (42) forms the second operating structure. When the first clamping plate (22) is located on the straight segment (43), the first clamping plate (22) and the second clamping plate (23) are in the first state.

2. The transport fixture for heating battery cells according to claim 1, characterized in that, The conveying assembly (3) includes a first transmission assembly (32), a second transmission assembly (33), and a drive assembly (34). The first transmission assembly (32) and the second transmission assembly (33) are respectively disposed on both sides of the frame (1) along the first direction. The output end of the drive assembly (34) is connected to the end of the first transmission assembly (32). The conveyor belt (31) is stretched and driven between the first transmission assembly (32) and the second transmission assembly (33).

3. The transport fixture for heating battery cells according to claim 2, characterized in that, The number of conveyor belts (31) is two. The first transmission assembly (32) includes a first transmission shaft (321) and two first transmission wheels (322) disposed on the first transmission shaft (321). The second transmission assembly (33) includes a second transmission shaft (331). The second transmission shaft (331) is provided with two second transmission wheels (332) at corresponding positions of the two first transmission wheels (322). The line connecting the centers of a set of corresponding first transmission wheels (322) and second transmission wheels (332) is parallel to the first direction. Each of the conveyor belts (31) is engaged between a corresponding set of first drive pulleys (322) and second drive pulleys (332).

4. The transport fixture for heating battery cells according to claim 2, characterized in that, The conveying assembly (3) further includes a pair of tensioning assemblies (35), which are disposed at both ends of the second transmission assembly (33) along the second direction; each tensioning assembly (35) includes a slide groove (351) and a push rod (352), the slide groove (351) extends along the first direction, at least a portion of the structure of the second transmission assembly (33) is slidably mounted in the slide groove (351), and the push rod (352) is used to drive the second transmission assembly (33) to move along the extension direction of the slide groove (351); Wherein, the first direction and the second direction are perpendicular to each other.

5. The transport fixture for heating battery cells according to claim 1, characterized in that, An elastic element (24) and a guide element (25) are provided between the first clamping plate (22) and the second clamping plate (23). The elastic element (24) is provided between the first clamping plate (22) and the second clamping plate (23) and is configured to apply an elastic force away from the second clamping plate (23) to the first clamping plate (22). The guide (25) is arranged perpendicular to the first clamping plate (22) and the second clamping plate (23), and one end of the guide (25) is connected to the first clamping plate (22), and the other end passes through the second clamping plate (23).

6. The transport fixture for heating battery cells according to claim 1, characterized in that, The first adjusting guide rail (4) is provided with a plurality of mounting components (5). The mounting components (5) include a fixing member (51), a support member (52) and an adjusting member (53). The adjusting member (53) is located between the fixing member (51) and the support member (52). The fixing member (51) is fixedly connected to the first adjusting guide rail (4). The support member (52) is fixedly connected to the frame (1). The adjusting member (53) is used to adjust the mounting height of the first adjusting guide rail (4) on the frame (1).

7. The transport fixture for heating battery cells according to claim 1, characterized in that, The first adjusting guide rail (4) consists of two rails, which abut against the opposite ends of the first clamping plate (22); The battery cell heating transport fixture also includes at least one second adjusting guide rail (6), which is located between two first adjusting guide rails (4). The second adjusting guide rail (6) extends along the first direction and passes through the heating area (12). The second adjusting guide rail (6) abuts against the top of the first clamping plate (22).

8. The transport fixture for heating battery cells according to claim 1, characterized in that, The battery cell heating transport fixture also includes a support rail assembly (7) disposed on the frame (1). The support rail assembly (7) extends along the first direction, and the second clamping plate (23) abuts against the support rail assembly (7) and slides along the extension direction of the support rail assembly (7).

9. A battery cell heating device, characterized in that, include: The cell heating transport fixture as described in any one of claims 1 to 8; as well as Multiple heating modules (121) are located in the heating area (12) and spaced apart along the conveyor belt (31). Each heating module (121) has a heating chamber (1211) for heating the battery cell (8). The conveyor belt (31) can drive the clamping assembly (2) into the heating chamber (1211) one by one.

10. The cell heating device according to claim 9, characterized in that, The distance between two adjacent clamping components (2) is equal to the distance between two adjacent heating chambers (1211), and the distance between any two adjacent heating chambers (1211) is equal.

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