Battery cell hot pressing equipment, method and battery cell production system

Abstract

The present invention relates to the field of battery production technology, and more particularly to a battery cell hot pressing device, method, and battery cell production system. The battery cell hot pressing device provided herein comprises an input line, a first loading device, a battery cell transfer device, a second loading device, a hot pressing device, a first unloading device, a second unloading device, and an output line. The battery cell hot pressing device, method, and battery cell production system provided herein can address the low efficiency of battery cell hot pressing in existing technologies.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production, and in particular to a battery cell hot pressing device, method and battery cell production system. Background Art

[0002] During battery production, cells undergo hot pressing to shape them and control their thickness, preventing relative displacement between the positive and negative electrodes. To improve hot pressing efficiency, a two-layer hot pressing process is typically used.

[0003] In the prior art, a robot is generally used to flip the horizontally arranged battery cells transported on a logistics line into a vertically stacked state, which is a complex process and inefficient.

[0004] Therefore, how to solve the problem of low thermal compression efficiency of battery cells in the prior art has become an important technical problem to be solved by those skilled in the art. Summary of the Invention

[0005] The present invention provides a battery cell hot pressing device, a method and a battery cell production system, which can solve the problem of low battery cell hot pressing efficiency in the prior art.

[0006] The first aspect of the present invention provides a battery cell hot pressing device, which is provided with an input line, a first loading device, a battery cell transfer device, a second loading device, a hot pressing device, a first unloading device, a second unloading device and an output line, wherein:

[0007] The input line is used to input the battery cells into the first loading device;

[0008] The first loading device is used to convert the input battery cells into a stacked state;

[0009] The battery cell transport device is detachably provided with at least two layers of trays, the trays corresponding to the battery cells in each layer of the stacked state, and the battery cell transport device can lift out the battery cells in the first loading device as a whole through the trays;

[0010] The second loading device is used to take out the battery cells and trays in a stacked state from the battery cell transport device and compact the stacked battery cells and trays. The second loading device is also used to input the compacted battery cells and trays into the hot pressing device.

[0011] The hot pressing device is used to perform hot pressing testing on the stacked battery cells and the tray as a whole;

[0012] The first unloading device is used to take out the battery cells and trays that have completed hot pressing in the hot pressing device and separate the battery cells and trays in each layer;

[0013] The battery cell transfer device is further used to take out the battery cells and trays from the first unloading device and place the battery cells in the second unloading device;

[0014] The second unloading device is used to output the stacked battery cells one by one to the output line.

[0015] According to the battery cell hot pressing equipment provided by the present invention, the first loading device and the second unloading device both include:

[0016] a first support frame;

[0017] A gripping mechanism is slidably disposed on the first support frame in a vertical direction, and the gripping mechanism includes at least two groups of gripping components, and the at least two groups of gripping components are spaced apart in the vertical direction;

[0018] The first driving mechanism is used to drive the grasping mechanism to move in a vertical direction.

[0019] According to the battery cell hot pressing equipment provided by the present invention, each group of the gripping components includes at least one pair of support members, and the support members are used to support the ends of the battery cells.

[0020] According to the battery cell hot pressing equipment provided by the present invention, the gripping mechanism further includes:

[0021] A mounting frame, slidably connected to the first supporting frame, with a sliding direction arranged along the vertical direction;

[0022] A first bracket and a second bracket are arranged on the mounting frame, the first bracket and the second bracket can approach each other and move away from each other in the transverse direction of the first support frame, there is a distance between the first bracket and the second bracket, and the support members are respectively arranged on opposite sides of the first bracket and the second bracket;

[0023] The transverse driving assembly is configured to drive the first bracket and the second bracket to move toward and away from each other.

[0024] According to the battery cell hot pressing equipment provided by the present invention, the battery cell transport device includes:

[0025] Transfer device body;

[0026] A base, used for connecting with the transfer device body;

[0027] At least two layers of the trays are detachably arranged on the base, and there is a distance between at least two adjacent trays;

[0028] The pressing assembly has at least two first pressing parts, each of which corresponds to the tray one by one. The pressing assembly is configured to press the battery cell onto the tray.

[0029] According to the battery cell hot pressing device provided by the present invention, the first pressing portion is slidably provided on the base, and the sliding direction is perpendicular to the supporting surface of the tray;

[0030] The pressing assembly further includes a first pressing drive assembly configured to drive the first pressing portion to slide reciprocatingly relative to the base.

[0031] According to the battery cell hot pressing equipment provided by the present invention, the width of the first pressing portion is smaller than the width of the battery cell.

[0032] According to the battery cell hot pressing equipment provided by the present invention, the base is provided with a first fork arm assembly, the tray is provided with a fork hole, and the first fork arm assembly cooperates with the fork hole.

[0033] According to the battery cell hot pressing equipment provided by the present invention, the tray is provided with a first connector for connecting the tab of the battery cell and the tab testing system.

[0034] According to the battery cell hot pressing equipment provided by the present invention, the transfer device body can drive the base to flip in the vertical direction.

[0035] According to the battery cell hot pressing equipment provided by the present invention, the second loading device and the first unloading device both include:

[0036] a second support frame;

[0037] A supporting mechanism is provided on the second support frame, the supporting mechanism comprising at least two supporting assemblies for supporting the tray and the battery cells, the supporting surfaces of at least two supporting assemblies being parallel to each other and distributed layer by layer in the vertical direction, and adjacent supporting assemblies being capable of relative displacement;

[0038] The second driving mechanism is used to drive the adjacent supporting components to move relative to each other.

[0039] According to the battery cell hot pressing equipment provided by the present invention, the tray is provided with a fork-taking hole;

[0040] The supporting assembly includes a second fork arm assembly, the second fork arm assembly is slidably connected to the second support frame, and the second fork arm assembly is matched with the fork hole.

[0041] The battery cell hot pressing equipment provided according to the present invention further includes a pressing mechanism, which is arranged above the supporting mechanism and is configured to press the battery cell located at the top of the supporting mechanism onto the supporting assembly.

[0042] According to the battery cell hot pressing equipment provided by the present invention, the hot pressing device includes:

[0043] A box body having an accommodating space therein, wherein the side wall of the box body is provided with an opening for the fixture module to enter and exit the box body and a door assembly for controlling the opening and closing state of the opening, wherein the fixture module is formed by at least two trays stacked in a vertical direction, and adjacent trays of the fixture module cooperate to generate a compressive force on the battery cells located between the adjacent trays;

[0044] a pressing mechanism, disposed on the top of the box, wherein the pressing mechanism is configured to enable the fixture module to apply a pressing force to the battery cell;

[0045] The heating mechanism is used to heat the interior space of the box.

[0046] According to the battery cell hot pressing equipment provided by the present invention, two openings are provided, and the two openings are respectively provided on two opposite sides of the box body.

[0047] According to the battery cell hot pressing equipment provided by the present invention, there are at least two hot pressing devices, which are arranged side by side between the second loading device and the first unloading device.

[0048] According to the battery cell hot pressing equipment provided by the present invention, there is one opening, and the second loading device and the first unloading device are both arranged on a side corresponding to the opening.

[0049] According to the battery cell hot pressing equipment provided by the present invention, the heating mechanism includes:

[0050] The first heating element is arranged on the inner wall of the box.

[0051] According to the battery cell hot pressing equipment provided by the present invention, the pressing mechanism includes:

[0052] A pressure plate assembly is arranged inside the box in a liftable manner;

[0053] The third driving mechanism is used to drive the pressing plate assembly to move up and down, and can drive the pressing plate assembly to press the battery core on the uppermost tray.

[0054] The battery cell hot pressing device provided by the present invention further includes:

[0055] A pressure measuring element is used to detect the pressure between the output end of the third driving mechanism and the pressure plate assembly.

[0056] The battery cell hot pressing device provided by the present invention further includes:

[0057] A tab testing device is provided for testing the insulation performance of the battery cell. A first connector capable of electrically contacting the tab of the battery cell is provided on the tray. A second connector capable of electrically contacting the first connector is provided on the inner wall of the box or the door assembly. The second connector is electrically connected to the tab testing device.

[0058] According to the battery cell hot pressing equipment provided by the present invention, the input line and the output line are arranged in parallel, or the input line and the output line are arranged vertically; the battery cell transfer device is arranged between the input line and the output line.

[0059] A second aspect of the present invention provides a battery cell hot pressing method, which is implemented based on the battery cell hot pressing device as described in any one of the above items, comprising the steps of:

[0060] The battery cells are fed one by one into the first feeding device via the input line;

[0061] The first loading device converts the battery cells into a stacked state;

[0062] The battery cell transport device carries out the stacked battery cells as a whole through at least two trays;

[0063] The second loading device takes the tray and the battery cells out of the battery cell transfer device and presses at least two layers of the tray and the battery cells together;

[0064] The second loading device transports at least two layers of the trays and the battery cells in a compressed state into the hot pressing device;

[0065] The hot pressing device performs hot pressing treatment on at least two layers of the trays and the battery cells;

[0066] The first unloading device takes out at least two layers of the trays and the battery cells that have been subjected to the hot pressing treatment as a whole, and controls the separation of the trays and the battery cells at each layer;

[0067] The battery cell transfer device takes out at least two layers of the trays and the battery cells as a whole from the first unloading device;

[0068] The battery cell transporting device places at least two layers of the battery cells in the second unloading device;

[0069] The second unloading device outputs the stacked battery cells one by one to the output line.

[0070] According to the battery cell hot pressing method provided by the present invention, the battery cell transfer device places at least two layers of the battery cells in the second unloading device, comprising:

[0071] The battery cell transport device flips at least two layers of the battery cells 180°;

[0072] The battery cell transporting device places at least two layers of the battery cells flipped 180° into the second unloading device.

[0073] A third aspect of the present invention provides a battery cell production system, comprising the battery cell hot pressing device as described in any one of the above items.

[0074] The battery cell hot pressing equipment provided by the present invention inputs the battery cells one by one into the first loading device through the input line. The first loading device can convert the input battery cells into a stacked state, that is, a state in which at least two battery cells are distributed in layers. The battery cell transfer device uses at least two trays to lift the battery cells in the stacked state as a whole. The second loading device takes out the trays and battery cells from the battery cell transfer device and presses at least two layers of trays and battery cells. Then, the second loading device transports the at least two layers of trays and battery cells in the compressed state into the hot pressing device. The hot pressing device performs hot pressing treatment on the at least two layers of trays and battery cells. After that, the first unloading device takes out the at least two layers of trays and battery cells that have been hot-pressed as a whole, and controls the separation of each layer of trays and battery cells. The battery cell transfer device takes out at least two layers of trays and battery cells as a whole from the first unloading device. The battery cell transfer device places at least two layers of battery cells in the second unloading device, and the second unloading device outputs the battery cells in the stacked state one by one onto the output line. With such an arrangement, the battery cell hot pressing equipment provided by the present invention can convert the battery cells in a flat state on the conveyor line into a stacked state, perform hot pressing treatment on the stacked battery cells as a whole in the hot pressing device, and finally lay the stacked battery cells flat on the output line and output them to the next production link, thereby effectively improving the efficiency of the hot pressing link.

[0075] The present invention also provides a battery cell hot pressing method and battery cell production system. Thus, the battery cell hot pressing method and battery cell production system provided by the present invention can effectively improve the efficiency of battery cell hot pressing processing. The derivation process of this beneficial effect is generally similar to the derivation process of the beneficial effect brought about by the battery cell hot pressing equipment described above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0077] Figure 1 It is a schematic diagram of the overall layout of the battery core hot pressing equipment provided by the present invention;

[0078] Figure 2 It is a top view of the battery core hot pressing equipment provided by the present invention;

[0079] Figure 3 This is a schematic diagram of the relative positions of the battery cell stacking device and the conveyor line provided by the present invention;

[0080] Figure 4 yes Figure 1 Enlarged view of middle I;

[0081] Figure 5 is a front view of the battery cell stacking device provided by the present invention;

[0082] Figure 6 This is a rear view of the battery cell stacking device provided by the present invention;

[0083] Figure 7 is a side view of the battery cell stacking device provided by the present invention;

[0084] Figure 8 This is a schematic diagram of the structure of the battery cell transport device provided by the present invention Figure 1 ;

[0085] Figure 9 This is a schematic diagram of the structure of the battery cell transport device provided by the present invention Figure 2 ;

[0086] Figure 10 yes Figure 9 Enlarged view of middle I;

[0087] Figure 11 This is a side view of the battery cell transport fixture provided by the present invention when supporting a battery cell;

[0088] Figure 12 It is a structural schematic diagram of the battery cell transport fixture provided by the present invention;

[0089] Figure 13 It is a structural schematic diagram of the first blanking device provided by the present invention;

[0090] Figure 14 This is a side view of the first blanking device provided by the present invention Figure 1 ;

[0091] Figure 15 This is a side view of the first blanking device provided by the present invention Figure 2 ;

[0092] Figure 16 It is a front view of the first blanking device provided by the present invention;

[0093] Figure 17 yes Figure 16 Enlarged view of middle I;

[0094] Figure 18 is a top view of the tray provided by the present invention;

[0095] Figure 19 is a side view of the tray provided by the present invention;

[0096] Figure 20 is a front view of the tray provided by the present invention;

[0097] Figure 21 This is a structural diagram of the hot pressing device provided by the present invention when no jig module is placed;

[0098] Figure 22 This is a structural diagram of a battery cell hot pressing device provided by the present invention when a jig module is placed in the device;

[0099] Figure 23 This is a front view of the hot pressing device provided by the present invention;

[0100] Figure 24 yes Figure 23 Enlarged view of middle I;

[0101] Figure 25 It is a structural schematic diagram of a fixture module loaded with battery cells provided by the present invention;

[0102] Figure 26 It is a structural schematic diagram of the tray provided by the present invention;

[0103] Figure 27 This is a front view of the tray provided by the present invention;

[0104] Figure 28 It is a partial structural schematic diagram of the tray provided by the present invention;

[0105] Figure 29 is a schematic diagram of the connection structure between the pressing plate assembly and the third driving mechanism provided by the present invention;

[0106] Figure 30 This is a schematic diagram of the overall layout of a battery cell hot pressing device in another embodiment provided by the present invention;

[0107] Figure 31 yes Figure 30 Schematic top view of .

[0108] Reference numerals:

[0109] 1: Input line; 2: First loading device; 3: Cell transfer device; 4: Second loading device; 5: Hot pressing device; 6: First unloading device; 7: Second unloading device; 8: Output line;

[0110] 101: First support frame; 102: Grasping mechanism; 103: Battery cell; 104: Support member; 106: First limiting structure; 107: Mounting frame; 108: First bracket; 109: Second bracket; 110: Transverse drive assembly; 111: Second guide structure; 112: First limiting assembly; 113: Synchronous belt drive assembly; 114: Drive member;

[0111] 201: base; 202: transfer device body; 203: tray; 205: first pressing portion; 206: first pressing drive assembly; 207: connecting seat; 208: second guide structure; 210: first fork arm assembly; 211: second limiting structure; 212: first connecting member;

[0112] 301: Second support frame; 304: Support assembly; 305: Second drive mechanism; 306: Limiting groove; 307: Limiting block; 308: Fork-taking hole; 310: Second pressing portion; 311: Second pressing drive assembly; 312: Fourth guide structure; 314: Third guide structure; 316: Horizontal movement mechanism; 317: Vertical movement mechanism; 318: Mounting seat;

[0113] 401: fixture module; 402: box; 403: door assembly; 405: third drive mechanism; 406: pressure plate; 407: connecting bracket; 408: heat insulation board; 409: pressure measuring element; 410: support part; 412: support platform; 413: lifting mechanism; 416: pressing part; 417: pressure block; 419: support rod; 420: vertical telescopic member; 421: connecting rod. DETAILED DESCRIPTION

[0114] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0115] The following describes the battery cell hot pressing equipment, method and battery cell production system in embodiments of the present invention with reference to the accompanying drawings.

[0116] Please refer to Figure 1 and Figure 2 The battery cell hot pressing equipment provided by an embodiment of the present invention is provided with an input line 1, a first loading device 2, a battery cell transfer device 3, a second loading device 4, a hot pressing device 5, a first unloading device 6, a second unloading device 7 and an output line 8.

[0117] The input line 1 is used to input the battery cells 103 one by one into the first loading device 2 . In some embodiments, the input line 1 can be configured as a conveyor belt mechanism, and the battery cells 103 are conveyed one by one into the first loading device 2 in a flat state.

[0118] The first loading device 2 is used to convert at least two input battery cells 103 into a stacked state. After the input line 1 inputs at least two battery cells 103 in a flat state into the first loading device 2, the first loading device 2 can stack the battery cells 103 layer by layer, so that at least two battery cells 103 form a stacked state.

[0119] The battery cell transfer device 3 is detachably provided with at least two layers of trays 203. The at least two layers of trays 203 correspond one-to-one with the at least two layers of battery cells 103 stacked in the first loading device 2. The battery cell transfer device 3 can use the at least two layers of trays 203 to lift the battery cells 103 from the first loading device 2 as a whole. Before the battery cells 103 are lifted out, the battery cell transfer device 3 first extends the at least two layers of trays 203 one-to-one to the position below the at least two layers of battery cells 103. Then, the first loading device 2 is activated to place the battery cells 103 onto each tray 203. After that, the battery cell transfer device 3 lifts the battery cells 103 out.

[0120] The second loading device 4 is used to take out the stacked battery cells 103 and trays 203 in the battery cell transfer device 3 and press at least two layers of battery cells 103 and trays 203. The second loading device 4 is also used to input the pressed battery cells 103 and trays 203 into the hot pressing device 5.

[0121] The hot pressing device 5 is used to hot press the stacked battery cells 103 and the tray 203. The working principle of the hot pressing device 5 can be referred to the battery cell hot pressing device in the prior art, which will not be described in detail here.

[0122] The first unloading device 6 is used to take out the battery cells 103 and the tray 203 that have completed hot pressing in the hot pressing device 5 and separate the battery cells 103 and the tray 203 of each layer.

[0123] The battery cell transfer device 3 is further used to take out the battery cells 103 and the tray 203 from the first unloading device 6 and place the battery cells 103 into the second unloading device 7 .

[0124] The second unloading device 7 is used to output the stacked battery cells 103 one by one to the output line 8 .

[0125] In this way, the battery cell hot pressing equipment provided in this embodiment inputs the battery cells 103 one by one into the first loading device 2 through the input line 1. The first loading device 2 can convert the battery cells 103 input in a flat state into a stacked state, that is, a state in which at least two battery cells 103 are distributed in layers along the vertical direction. The battery cell transfer device 3 uses at least two trays 203 to lift the stacked battery cells 103 as a whole. The second loading device 4 removes the trays 203 and battery cells 103 from the battery cell transfer device 3 and compacts the at least two layers of trays 203 and battery cells 103. The second loading device 4 then conveys the compacted at least two layers of trays 203 and battery cells 103 to the hot pressing device 5. The hot pressing device 5 performs a hot pressing treatment on the at least two layers of trays 203 and battery cells 103. After that, the first unloading device 6 removes the at least two layers of trays 203 and battery cells 103 that have undergone the hot pressing treatment as a whole and controls the separation of each layer of trays 203 and battery cells 103. The battery cell transfer device 3 removes the at least two layers of trays 203 and battery cells 103 as a whole from the first unloading device 6. The battery cell transfer device 3 places the at least two layers of battery cells 103 in the second unloading device 7, which outputs the stacked battery cells 103 one by one to the output line 8. With such an arrangement, the battery cell hot pressing equipment provided in this embodiment can convert the battery cells 103 in a flat state on the conveyor line into a stacked state, and then perform hot pressing treatment on the stacked battery cells 103 as a whole in the hot pressing device 5. Finally, the stacked battery cells 103 are flattened on the output line 8 and output to the next production link, thereby effectively improving the efficiency of the hot pressing link.

[0126] The following content describes the specific structures of the first loading device 2 and the second unloading device 7 in the embodiment of the present invention. Please refer to Figures 3 to 7 .

[0127] The cell stacking device (first loading device 2 and second unloading device 7) provided in the embodiment of the present invention includes a first support frame 101, a gripping mechanism 102 and a first driving mechanism. Specifically, the first support frame 101 is used to support the first driving mechanism and the gripping mechanism 102.

[0128] The gripping mechanism 102 includes at least two groups of gripping assemblies. The gripping mechanism 102 can slide back and forth in the vertical direction relative to the first support frame 101, thereby enabling the at least two groups of gripping assemblies to slide back and forth in the vertical direction relative to the first support frame 101. The first driving mechanism is disposed between the gripping mechanism 102 and the first support frame 101 and is used to drive the gripping mechanism 102 to slide back and forth relative to the first support frame 101, thereby achieving the lifting and lowering of the at least two groups of gripping assemblies.

[0129] At least two gripping assemblies are provided, and the at least two gripping assemblies are spaced apart and distributed along the vertical direction. After each gripping assembly grips the battery cell 103, at least two battery cells 103 are arranged in a vertical distribution state, that is, the battery cells 103 are stacked layer by layer.

[0130] When stacking the battery cells 103 on the input line 1, the first driving mechanism drives the grasping mechanism 102 to rise, and first makes the grasping component located at the top correspond to the battery cells 103 on the input line 1. When the grasping component completes the grasping action of the battery cells 103, the first driving mechanism continues to drive the grasping mechanism 102 to rise, so that the next group of grasping components correspond to the battery cells 103 on the input line 1, so as to grasp the battery cells 103 on the input line 1.

[0131] The process continues in a cycle, with each grabbing assembly completing the grabbing of the battery cell 103 during its ascent. A single battery cell 103 is placed horizontally on the grabbing assembly, and at least two grabbed battery cells 103 are vertically distributed across at least two layers of grabbing assemblies, thereby completing the stacking of the battery cells 103. The stacking process only involves the translation of the battery cells 103, avoiding the need to flip them. This simplifies the stacking process, requires minimal space, and minimizes the spacing between vertically distributed battery cells 103, facilitating an increase in the number of battery cells that can simultaneously enter the hot pressing apparatus 5, thereby improving hot pressing efficiency.

[0132] In this embodiment of the present invention, each gripping assembly includes at least one pair of support members 104, which are capable of supporting the ends of the battery cells 103. Each pair of support members 104 is positioned on either side of the input cable 1 and lies within the same horizontal plane. The distance between the adjacent ends of each pair of support members 104 is greater than the width of the input cable 1, allowing the input cable 1 to pass between the pair of support members 104.

[0133] The width dimension of the battery cell 103 (the dimension of the battery cell 103 along the width direction of the input line 1) is larger than the width dimension of the input line 1, that is, both ends of the battery cell 103 along the width direction of the input line 1 can extend to the outside of the input line 1, and the input line 1 only supports the middle part of the battery cell 103.

[0134] When the battery cell 103 on the input line 1 is transported between a pair of support members 104, the input line 1 is controlled to stop running, and the first driving mechanism is used to drive the grasping mechanism 102 to rise. During the rising process of the grasping mechanism 102, the support member 104 contacts the end of the battery cell 103 to support the battery cell 103, and the battery cell 103 will gradually separate from the input line 1 as the support member 104 rises, thereby completing the grasping action of the battery cell 103.

[0135] During stacking, the first driving mechanism can also be used to drive the grabbing assembly to move until the upper surface of the support 104 is flush with the conveying surface of the input line 1, and then the input line 1 can be operated until the battery cell 103 moves above the support 104, and then the first driving mechanism can be used to drive the support 104 to drive the battery cell 103 to rise.

[0136] It should be noted that the second unloading device 7 in the embodiment of the present invention can release the battery cells 103 onto the output line 8. Specifically, the first driving mechanism can be used to drive the grasping mechanism 102 to descend, so that the battery cells 103 on the bottom support member 104 are supported on the output line 8, the support member 104 and the battery cells 103 are disengaged, and then the output line 8 is operated to drive the battery cells 103 to move. Thereafter, the grasping mechanism 102 is driven to continue to descend by the first driving mechanism until the battery cells 103 on the second bottom support member 104 are supported on the output line 8, the support member 104 and the battery cells 103 are disengaged, and then the output line 8 is operated to drive the battery cells 103 to move. This cycle is repeated, and the battery cells 103 on the second unloading device 7 can be laid out one by one on the output line 8.

[0137] In a further embodiment, a first limiting structure 106 is provided on the support member 104 to limit the battery cell 103 from sliding off the support member 104 , thereby increasing the stability of the battery cell 103 on the support member 104 and improving the safety factor.

[0138] Specifically, the first limiting structure 106 may be a limiting block provided on the support member 104. Figure 4 Along the conveying direction of the input line 1, the limit blocks are located at both ends of the support member 104. The limit blocks are set on the upper surface of the support member 104. Through the interaction between the limit blocks and the battery cells 103, the battery cells 103 can be restricted from sliding on the support member 104.

[0139] In the embodiment of the present invention, the gripping mechanism 102 further includes a mounting frame 107, a first bracket 108, a second bracket 109 and a transverse drive assembly 110. Figure 5 and Figure 6 The mounting frame 107 is slidably connected to the first support frame 101. The first bracket 108 and the second bracket 109 are mounted on the mounting frame 107 and are capable of relative horizontal movement. The transverse drive assembly 110 is used to drive the first bracket 108 and the second bracket 109 to move relative to the mounting frame 107. There is a gap between the first bracket 108 and the second bracket 109, and the support members 104 are respectively disposed on the sides of the first bracket 108 and the second bracket 109 that are adjacent to each other.

[0140] After each grabbing assembly completes grabbing a battery cell 103, the battery cell transporter 3 delivers at least two layers of trays to a corresponding position below each battery cell 103. The transverse drive assembly 110 then drives the first bracket 108 and the second bracket 109 away from each other until the distance between the adjacent ends of each pair of support members 104 is greater than the width of the battery cell 103. This causes the support members 104 to lose their support for the battery cell 103, and the grabbing mechanism 102 releases the battery cell 103. At this point, each battery cell 103 can land on a respective tray of the battery cell transporter 3.

[0141] The above-mentioned transverse drive assembly 110 can be, but is not limited to, configured in the form of a cylinder or a screw-nut transmission assembly.

[0142] In this embodiment, the gripping mechanism 102 further includes a first guide structure for guiding the movement of the first bracket 108 and the second bracket 109 relative to the mounting frame 107. Specifically, the first guide structure can be configured in the form of a guide rail slider, including a first guide rail and two first sliders. The first guide rail is connected to the mounting frame 107, and the axial direction of the first guide rail is consistent with the movement direction of the first bracket 108 and the second bracket 109 on the mounting frame 107. The two first sliders are respectively connected to the first bracket 108 and the second bracket 109, and the movement of the first bracket 108 and the second bracket 109 is guided by the sliding fit between the first slider and the first guide rail.

[0143] A second guide structure 111 is provided between the first support frame 101 and the mounting frame 107. The second guide structure 111 is used to guide the sliding movement of the mounting frame 107 relative to the first support frame 101. Specifically, the second guide structure 111 can also be configured as a guide rail slider, including a second guide rail and a second slider. The second guide rail is connected to the first support frame 101, with the axis of the second guide rail arranged in the vertical direction. The second slider is connected to the mounting frame 107, and the sliding engagement between the second slider and the second guide rail guides the sliding movement of the mounting frame 107.

[0144] In this embodiment, a first limiting assembly 112 is provided on the first support frame 101, which is used to limit the extreme sliding position of the grasping mechanism 102 on the first support frame 101, to prevent the grasping mechanism 102 from escaping from the upper end of the first support frame 101 when rising, or to prevent the grasping mechanism 102 from colliding with the ground or the first support frame 101 when descending, thereby ensuring safety.

[0145] Specifically, the above-mentioned first limiting assembly 112 can be a limiting block arranged at the upper and lower ends of the first support frame 101. Through the interaction between the mounting frame 107 of the grasping mechanism 102 and the limiting block on the first support frame 101, the sliding position of the grasping mechanism 102 on the first support frame 101 can be limited.

[0146] In this embodiment, two sets of the first drive mechanisms are arranged in parallel, one on each side of the gripping mechanism 102, and the power output ends of both sets of first drive mechanisms are connected to the gripping mechanism 102. The two sets of first drive mechanisms on both sides of the gripping mechanism 102 simultaneously drive the gripping mechanism 102 to move, thereby improving the stability of the gripping mechanism 102 and reducing the requirements for parameters such as power of the first drive mechanisms.

[0147] The first driving mechanism is used to drive the grasping mechanism 102 to move linearly in the vertical direction, and can be, but is not limited to, a screw-nut transmission mechanism, a rack and pinion transmission mechanism, a cylinder, a hydraulic cylinder, an electric cylinder, or the like.

[0148] In one embodiment, if Figures 5 to 7 As shown, the first drive mechanism includes a synchronous belt drive assembly 113 and a drive member 114. The drive member 114 is used to drive the synchronous belt drive assembly 113. The conveying direction of the synchronous belt drive assembly 113 is arranged in the vertical direction. Specifically, the two synchronous pulleys of the synchronous belt drive assembly 113 are vertically distributed at both ends of the support frame. The synchronous belt of the synchronous belt drive assembly 113 serves as the power output end and is connected to the gripping mechanism 102. The operation of the synchronous belt drive assembly 113 can drive the gripping mechanism 102 to move up and down.

[0149] Accordingly, two groups of synchronous belt transmission assemblies 113 are provided, and the synchronous belts of the two groups of synchronous belt transmission assemblies 113 are both connected to the mounting frame 107 of the grabbing mechanism 102 to jointly drive the lifting and lowering of the grabbing mechanism 102 .

[0150] The two groups of synchronous belt drive assemblies 113 are in transmission connection with the same driving member 114 and are powered by the same driving member 114. Alternatively, the two groups of synchronous belt drive assemblies 113 may be in transmission connection with different driving members 114 and be powered by two driving members 114 respectively.

[0151] In this embodiment, both synchronous belt drive assemblies 113 are in transmission connection with a driver 114, and are powered by the same driver 114. Specifically, the driver 114 is a motor. The synchronous pulleys of the two synchronous belt drive assemblies 113 are connected via a connecting shaft and a coupling. A transmission assembly, such as a belt drive assembly or a gear drive assembly, is provided between the connecting shaft and the output shaft of the motor, thereby enabling the motor to drive the two synchronous belt drive assemblies 113.

[0152] The following content is combined Figures 8 to 12 The battery cell transport device 3 according to the embodiment of the present invention is described.

[0153] The battery cell transfer device 3 provided in this embodiment of the present invention includes a transfer device body 202, a base 201, at least two layers of trays 203, and a compression assembly. Specifically, the at least two layers of trays 203 are detachably mounted on the base 201, each layer of trays 203 having a support surface for supporting battery cells 103. The base 201 is connected to the transfer device body 202, which is used to transfer the battery cells 103 on the at least two layers of trays 203 to a target location. The transfer device body 202 can be a robot or a multi-axis module.

[0154] The tray 203 is provided with at least two layers and can support at least two battery cells 103 at the same time. The supporting surfaces of at least two layers of trays 203 are parallel to each other and distributed in a direction perpendicular to the supporting surfaces of the trays 203 , and there is a gap between adjacent trays 203 .

[0155] The above-mentioned clamping assembly is arranged on the base 201, and the clamping assembly has at least two first clamping parts 205. The at least two first clamping parts 205 correspond to at least two layers of trays 203 one by one, and are used to press each layer of battery cells 103 onto the tray 203, so that the battery cells 103 and the tray 203 are relatively fixed.

[0156] With such an arrangement, when the battery cells 103 are transported using the battery cell transport device 3 provided in an embodiment of the present invention, at least two battery cells 103 can be transported at the same time, and the battery cells 103 can be fixed on the tray 203 using a clamping assembly, which not only improves the transport efficiency, but also improves the stability of the battery cells 103 during the transport process, thereby solving the problems of low efficiency and poor stability when transporting the battery cells 103.

[0157] In an embodiment of the present invention, the first pressing portion 205 is slidably disposed on the base 201, and the sliding direction of the first pressing portion 205 relative to the base 201 is perpendicular to the supporting surface of the tray 203. Specifically, the first pressing portion 205 can be configured as a pressure plate, and the plane on which the pressure plate is located is parallel to the supporting surface of the tray 203. The above-mentioned pressing assembly also includes a first pressing drive assembly 206, which can drive the first pressing portion 205 to slide back and forth relative to the base 201, so that the first pressing portion 205 can switch between the first position and the second position.

[0158] When the first clamping portion 205 slides to the first position, the first clamping portion 205 rests against the side of the battery cell 103 away from the tray 203, applying pressure to the battery cell 103 on the side of the battery cell 103 away from the tray 203, so that the battery cell 103 is clamped and fixed between the tray 203 and the first clamping portion 205, ensuring that the battery cell 103 and the tray 203 are relatively fixed.

[0159] When the first pressing portion 205 slides to the second position, a gap exists between the first pressing portion 205 and the battery cells 103 on the tray 203 , and the first pressing portion 205 can be separated from the tray 203 .

[0160] In this embodiment, Figure 10 As shown, the width H of the battery cell 103 is greater than the width h of the first pressing portion 205 . The first pressing portion 205 can at least make the two opposite ends of the battery cell 103 in the width direction be located outside the outline of the first pressing portion 205 .

[0161] When the battery cell transfer device 3 transports the stacked battery cells 103 that have been hot-pressed to the second unloading device 7, it can first control the transfer device body 202 to rotate the base 201 180 degrees around the horizontal axis, so that the battery cell 103 is located above the first clamping part 205, and the tray 203 is located above the battery cell 103. The first clamping drive component 206 is used to drive the first clamping part 205 to move downward, so that the two ends of the battery cell 103 are supported on the support part of the second unloading device 7. The first clamping part 205 continues to move downward until the battery cell 103 is out of contact with the first clamping part 205, thereby allowing the battery cell transfer device 3 to release the battery cell 103.

[0162] Each of the first pressing portions 205 can be driven by the same first pressing drive assembly 206, so that each of the first pressing portions 205 slides synchronously relative to the base 201. In this case, the pressing assembly further includes a connecting seat 207, to which each of the first pressing portions 205 is connected. The connecting seat 207 is slidably connected to the base 201, and the sliding direction is parallel to the vertical direction. When the connecting seat 207 slides relative to the base 201, it can drive each of the first pressing portions 205 to slide simultaneously relative to the base 201.

[0163] The first pressing drive assembly 206 is disposed between the connecting seat 207 and the base 201 .

[0164] The first pressing drive assembly 206 may be, but is not limited to, configured as a rack and pinion transmission assembly, a belt transmission assembly, a screw and nut transmission assembly, a cylinder, a hydraulic cylinder, etc. The following takes the configuration of the first pressing drive assembly 206 as an example of a screw and nut transmission assembly as an example.

[0165] The screw-nut transmission assembly includes a screw and a nut that cooperates with the screw. The screw is rotationally connected to the base 201, with its axis parallel to the reference axis and one end connected to the motor. The nut of the screw-nut transmission assembly is connected to the connecting base 207. When the motor rotates, the fixed axis of the screw rotates, causing the nut to move axially along the screw, thereby causing the connecting base 207 to slide relative to the base 201.

[0166] In this embodiment, a second guide structure 208 is further provided between the connecting seat 207 and the base 201 . The second guide structure 208 is used to guide the sliding of the connecting seat 207 relative to the base 201 to ensure the stability of the sliding process of the connecting seat 207 .

[0167] Specifically, the second guide structure 208 can be configured as a guide rail slider, including a guide rail and a slider. The guide rail is connected to the base 201, and the axis of the guide rail is perpendicular to the supporting surface of the tray. The slider is connected to the connecting seat 207, and the sliding fit between the slider and the guide rail guides the sliding of the connecting seat 207.

[0168] In an optional embodiment, at least two first clamping drive assemblies 206 may also be provided, and the first clamping drive assemblies 206 correspond one-to-one to the first clamping parts 205, and each first clamping drive assembly 206 is respectively provided between the corresponding first clamping part 205 and the base 201, so that each first clamping part 205 can slide independently relative to the base 201.

[0169] In this embodiment of the present invention, a first fork assembly 210 is disposed on the base 201, wherein the tray 203 is used to support the battery cells 103, and a fork hole is disposed on the tray 203. The first fork assembly 210 is connected to the base 201 and can be inserted into the fork hole. In conjunction with the fork hole, the first fork assembly 210 can support the weight of the tray 203 and the battery cells 103. By relative movement of the tray 203 and the first fork assembly 210 along the axis of the fork hole, the first fork assembly 210 can be moved outside the fork hole, thereby disconnecting the tray 203 from the first fork assembly 210.

[0170] In this embodiment, a second limiting structure 211 is provided on the first fork arm assembly 210 for limiting the relative position between the tray 203 and the first fork arm assembly 210 .

[0171] The first fork arm assembly 210 includes at least two forks, each of which is parallel to each other, one end of the fork arm is connected to the base 201, and the other end is a free end. Figure 12 The second limiting structure 211 includes a limiting block, which is arranged at one end of the fork arm close to the base 201. The interaction between the limiting block and the tray 203 can limit the position of the tray 203 on the fork arm, thereby preventing the tray 203 from being too close to the base 201.

[0172] The number of fork holes 308 on the tray 203 is greater than the number of fork arms of the first fork arm assembly 210. When the tray 203 is engaged with the first fork arm assembly 210, there are idle fork holes 308 on the tray 203. When the tray 203 and the battery cells 103 are transferred from the battery cell transfer device 3 to the second loading device 4, the fork arms of the second loading device 4 can be used to engage with the idle fork holes 308 to move the tray 203 to the second loading device 4.

[0173] After the battery cells 103 are transferred to the hot pressing device 5 , the tray 203 and the battery cells 103 can be hot pressed together, which is beneficial to ensure the hot pressing effect.

[0174] During the hot pressing process of the battery cell 103, it is necessary to test the performance of the tabs of the battery cell 103. Generally, a tab testing system is provided on the hot pressing equipment. During the hot pressing process, the tabs of the battery cell 103 need to be connected to the tab testing system.

[0175] In this embodiment, a first connector 212 is provided on the tray 203 for connecting the tabs of the battery cells 103 to the tab testing system to ensure that the tab testing of the battery cells 103 can be completed during hot pressing.

[0176] The hot pressing apparatus is provided with contact points for connection with the tab testing system. The first connector 212 may be a conductive sheet. When the battery cell 103 is placed on the tray 203, the tab of the battery cell 103 contacts the conductive sheet. After the tray 203 is placed inside the hot pressing apparatus, the conductive sheet contacts the contact points, thereby connecting the tab of the battery cell 103 to the tab testing system.

[0177] The following combination Figures 13 to 20 The second loading device 4 and the first unloading device 6 in the embodiment of the present invention are described.

[0178] The second loading device 4 and the first unloading device 6 provided in the embodiment of the present invention both include a second support frame 301 , a supporting mechanism, a second driving mechanism 305 and a moving mechanism. Specifically, the second support frame 301 is used to support the supporting mechanism and the second driving mechanism 305 .

[0179] The supporting mechanism is mounted on a second support frame 301 and includes at least two supporting assemblies 304 for supporting the tray 203 and the battery cells 103. The supporting surfaces of the at least two supporting assemblies 304 are parallel to each other, and the at least two supporting assemblies 304 are vertically arranged layer by layer. The tray 203 and the battery cells 103 are placed horizontally on the supporting mechanism and are spaced apart vertically.

[0180] Adjacent supporting assemblies 304 can move relative to each other, and the above-mentioned second driving mechanism 305 is used to drive the supporting assemblies 304 to move relative to each other in the vertical direction to adjust the distance between adjacent supporting assemblies 304, so that the two adjacent pairs of trays 203 and battery cells 103 on the supporting mechanism are closer to or farther away from each other.

[0181] The execution end of the moving mechanism is connected to the second support frame 301 and is used to drive the second support frame 301 to move horizontally, thereby driving the tray 203 and the battery cells 103 to enter and exit the hot pressing device 5 .

[0182] When the second loading device provided by the embodiment of the present invention is used to transfer the battery cell 103 to the hot pressing device 5, the adjacent supporting components 304 are moved closer to each other by the second driving mechanism 305 until the adjacent trays 203 are in contact with the battery cell 103. Figure 15 The second support frame 301 and the supporting mechanism are then driven by the moving mechanism to move the stacked trays 203 and the battery cells 103 into the hot pressing device 5 as a whole.

[0183] After the second loading device drives the second support frame 301 and the supporting mechanism to move out of the hot pressing equipment through the moving mechanism, the tray 203 and the battery cells 103 remain in the hot pressing device 5 and participate in the hot pressing at the same time.

[0184] After the hot pressing is completed, the first unloading device drives the second support frame 301 and the supporting mechanism to move the tray 203 and the battery cell 103 out of the hot pressing equipment together through the moving mechanism, and then the second driving mechanism 305 moves the adjacent supporting components 304 away from each other, so that the trays 203 and the battery cells 103 on the adjacent supporting components 304 are separated and a certain distance is generated. Figure 14 .

[0185] With this arrangement, the distance between adjacent battery cells 103 is smaller, which is beneficial to increasing the number of battery cells 103 allowed to be placed in the hot pressing equipment, and at least two layers of battery cells 103 can be hot pressed at the same time. The loading efficiency and the hot pressing efficiency of the battery cells 103 are both improved, solving the problem of low efficiency in the hot pressing process of the battery cells 103 in the prior art.

[0186] A third guide structure 314 is provided between the supporting assembly 304 and the second support frame 301 for guiding the sliding movement of the supporting assembly 304 relative to the second support frame 301. Specifically, the third guide structure 314 can be provided in the form of a guide rail slider, including a guide rail and at least two sliders. The guide rail is provided on the second support frame 301 in a vertical direction, and the at least two sliders are respectively connected to the supporting assembly 304. The sliders are respectively slidably engaged with the guide rails, thereby guiding the sliding movement of the supporting assembly 304 relative to the second support frame 301.

[0187] In an embodiment of the present invention, the supporting mechanism further includes a second limiting component, which is disposed between adjacent supporting components 304 and is used to limit the maximum limit distance and the minimum limit distance between adjacent supporting components 304 .

[0188] When the distance between adjacent support assemblies 304 is at the minimum limit, the tray 203 on the upper support assembly 304 contacts the battery cell 103 on the lower support assembly 304. Therefore, the provision of the second limit assembly in this embodiment can prevent the battery cell 103 from being crushed due to the support assemblies 304 being too close together when adjusting the distance between the support assemblies 304.

[0189] In a specific embodiment, the second limiting component of the supporting mechanism includes a limiting groove 306 and a limiting block 307. The limiting block 307 is slidably matched with the limiting groove 306. Figure 17 As shown, the limiting grooves 306 and limiting blocks 307 are respectively provided on adjacent supporting assemblies 304, with the length of the limiting grooves 306 being arranged in the vertical direction. The limiting blocks 307 slide within the limiting grooves 306, and the interaction between the limiting blocks 307 and the sidewalls of the limiting grooves 306 can limit the distance between adjacent supporting assemblies 304.

[0190] For example, a limiting groove 306 is provided on the upper supporting component 304 of two adjacent supporting components 304, and a limiting block 307 is provided on the lower supporting component 304. During the relative displacement of the two supporting components 304, when the limiting block 307 is located at the lower end of the limiting groove 306, the distance between the two supporting components 304 is the maximum limit distance, and when the limiting block 307 is located at the upper end of the limiting groove 306, the distance between the two supporting components 304 is the minimum limit distance.

[0191] Specifically, a connecting plate extending in the vertical direction can be provided on the supporting assembly 304, and the limiting groove 306 can be provided on the connecting plate. The limiting block 307 can be provided in the form of a roller. When the roller is engaged with the limiting groove 306, rolling friction is generated between the roller and the limiting groove 306, which is conducive to reducing wear and extending service life.

[0192] Each supporting component 304 in the supporting mechanism can be slidably connected to the second support frame 301, so that the distance between adjacent supporting components 304 can be adjusted, and the height of the entire supporting mechanism can also be adjusted.

[0193] In this embodiment, the supporting component 304 located at the bottom of the supporting mechanism is fixed relative to the second supporting frame 301 , and the remaining supporting components 304 are slidably connected to the second supporting frame 301 .

[0194] The second driving mechanism 305 is disposed between the second support frame 301 and the uppermost supporting assembly 304 of the supporting mechanism, and is configured to cause the uppermost supporting assembly 304 of the supporting mechanism to slide back and forth in the vertical direction. During the sliding process, the uppermost supporting assembly 304 can drive the adjacent supporting assembly 304 to slide via the second limiting assembly.

[0195] Specifically, for ease of explanation, the support mechanism is described as having only four support components 304. It should be noted that, in a specific implementation, the support mechanism may include, but is not limited to, four support components 304, and may include ten support components 304 or even more.

[0196] The supporting components 304 in the supporting mechanism are, from top to bottom, a first supporting component, a second supporting component, a third supporting component and a fourth supporting component.

[0197] The second driving mechanism 305 drives the first supporting assembly to slide upward. When the first supporting assembly slides upward until the distance between it and the second supporting assembly is the maximum limit distance, the interaction between the limit block 307 and the limit groove 306 will drive the second supporting assembly and the first supporting assembly to slide upward synchronously. When the first supporting assembly and the second supporting assembly slide upward until the distance between the second supporting assembly and the third supporting assembly is the maximum limit distance, the interaction between the limit block 307 and the limit groove 306 will drive the third supporting assembly to slide upward synchronously until the distance between the third supporting assembly and the fourth supporting assembly is the maximum limit distance.

[0198] When the second driving mechanism 305 drives the first supporting assembly to slide downward, the first supporting assembly, the second supporting assembly and the third supporting assembly slide downward synchronously. When the distance between the third supporting assembly and the fourth supporting assembly is the minimum limit distance, the third supporting assembly and the fourth supporting assembly are relatively fixed, and the first supporting assembly and the second supporting assembly continue to slide downward synchronously. When the distance between the second supporting assembly and the third supporting assembly is the minimum limit distance, the second supporting assembly and the third supporting assembly are relatively fixed, and the first supporting assembly continues to slide downward until the distance between the first supporting assembly and the second supporting assembly is the minimum limit distance.

[0199] In an optional embodiment, the second driving mechanism 305 may be provided between every two adjacent supporting assemblies 304 to drive each supporting assembly 304 to slide back and forth in the vertical direction.

[0200] The second driving mechanism 305 may be, but is not limited to, a screw-nut transmission mechanism, a rack-and-pinion transmission mechanism, a belt transmission mechanism, a cylinder, a hydraulic cylinder, or the like.

[0201] In this embodiment of the present invention, a fork hole 308 is provided on the tray 203, the axis of which is parallel to the supporting surface of the tray 203. The supporting assembly 304 includes a second fork arm assembly, which is slidably connected to the second support frame 301. The second fork arm assembly can extend into the fork hole 308 and cooperate with the fork hole 308 to achieve docking between the supporting assembly 304 and the tray 203.

[0202] The second loading device 4 and the first unloading device 6 in this embodiment also include a clamping mechanism, which is arranged above the supporting mechanism and is used to press the battery cell 103 located at the top of the supporting mechanism onto the supporting assembly 304. When the tray 203 and the battery cell 103 are transferred to the hot pressing device 5 or taken out from the hot pressing device 5, the stability of the battery cell 103 located at the top can be ensured to prevent the battery cell 103 from slipping, etc.

[0203] The second pressing portion 310 may be provided on the second support frame 301 or on the uppermost supporting assembly 304 .

[0204] In a specific embodiment, the clamping mechanism includes a second clamping portion 310 and a second clamping drive assembly 311. The second clamping portion 310 is disposed on the uppermost support assembly 304 and is capable of reciprocating in a vertical direction. When the second clamping portion 310 slides downward until it contacts the battery cell 103, it exerts a downward compressive force on the battery cell 103. To remove the battery cell 103 and the tray 203 from the support mechanism, the second clamping portion 310 can be slid upward until it is out of contact with the battery cell 103.

[0205] The second pressing driving assembly 311 is configured to drive the second pressing portion 310 to slide back and forth relative to the uppermost supporting assembly 304 .

[0206] The second pressing drive assembly 311 may be, but is not limited to, configured as a screw-nut transmission mechanism, a rack-and-pinion transmission mechanism, a belt transmission mechanism, an air cylinder, a hydraulic cylinder, or the like.

[0207] In this embodiment, the second drive mechanism 305 and the second pressing drive assembly 311 are both configured as air cylinders. In a specific embodiment, a pressure regulating valve is provided in the air pressure circuit and is associated with the second pressing drive assembly 311 to prevent the second pressing portion 310 from exerting excessive pressure on the battery cell 103, thereby preventing damage to the battery cell 103.

[0208] In this embodiment, the movable structure includes at least a transverse movable mechanism 316 and a longitudinal movable mechanism 317. The transverse movable mechanism 316 is disposed on the movable portion of the longitudinal movable mechanism 317, and the second support frame 301 is disposed on the movable portion of the transverse movable mechanism 316. A mounting seat 318 is disposed on the movable portion of the longitudinal movable mechanism 317 for connecting to the transverse movable mechanism 316. A fourth guide structure 312 is disposed between the mounting seat 318 and the movable portion of the transverse movable mechanism 316 to guide the transverse movement of the second support frame 301.

[0209] Specifically, the longitudinal moving mechanism 317 may be a linear module, and the transverse moving mechanism 316 may be a cylinder. The axes of the linear module and the cylinder are both arranged in a horizontal direction and are perpendicular to each other.

[0210] The fourth guide structure 312 is also configured as a guide rail slider, and details thereof will not be repeated.

[0211] The following content, combined with Figures 21 to 29 The battery cell hot pressing device of the present invention is described.

[0212] like Figures 21 to 29 As shown, the battery cell hot pressing device provided by the embodiment of the present invention includes a box body 402, a pressing mechanism and a heating mechanism.

[0213] Specifically, at least two trays are stacked vertically to form a jig module 401. That is, the jig module 401 has a multi-layer structure capable of supporting the battery cells 103. Multiple battery cells 103 are stacked and spaced apart on the jig module 401. The jig module 401 can exert a compressive force on each battery cell 103.

[0214] The housing 402 has a storage space inside, and the jig module 401 loaded with the battery cells 103 can be placed inside the housing 402. The pressing mechanism is provided at the top of the housing 402 and can apply pressure to the jig module 401, so that the jig module 401 applies a pressing force to the battery cells 103. The heating mechanism is used to heat the interior of the housing 402 to bake and heat the jig module 401 and the battery cells 103, thereby achieving a hot pressing operation on the battery cells 103.

[0215] The sidewalls of the box 402 are provided with an opening and a door assembly 403. The opening allows the jig module 401 loaded with the battery cells 103 to enter and exit the box 402, while the door assembly 403 controls the opening. When the jig module 401 needs to enter or exit the box 402, the door assembly 403 is controlled to open the opening. When the battery cells 103 are being hot-pressed, the door assembly 403 is controlled to close the opening, creating a sealed space within the box 402 and ensuring a constant temperature within the box 402.

[0216] Unlike conventional hot pressing devices, which use heating elements in direct contact with the battery cells for heating, this embodiment utilizes a constant temperature within the housing 402, transferring heat to the battery cells 103 to raise their temperature, and then applying pressure to the battery cells 103. This design allows for the placement of more battery cells 103 within the housing 402, significantly increasing the upper limit on the number of battery cells 103 that can be hot-pressed by a single hot pressing device within a specified timeframe.

[0217] In this embodiment, before the battery cell 103 is subjected to hot pressing, the jig module 401 is moved to the outside of the box 402, and the battery cell 103 is placed on the jig module 401. After adjusting the relative positions of the battery cell 103 and the jig module 401, the battery cell 103 and the jig module 401 are moved as a whole to the inside of the box 402, and the pressing mechanism and the heating mechanism are coordinated to perform hot pressing.

[0218] This arrangement avoids the need to adjust the battery cells 103 and the jig module 401 within the box 402, thereby reducing the space required by the jig module 401 within the box 402. Compared to the prior art, when the jig module 401 requires the same space within the box 402, the jig module 401 of the battery cell hot pressing device provided by the present invention can accommodate more battery cells 103, thereby increasing the number of battery cells 103 that can be hot pressed in a single pass and, accordingly, improving the hot pressing efficiency, thereby resolving the low hot pressing efficiency issue of prior art battery cell hot pressing equipment.

[0219] It should be noted that, to ensure the effectiveness of the hot pressing treatment on the battery cells 103, the jig module 401 may be preheated before loading the battery cells 103. Preheating the battery cells 103 may also reduce the heating time required when the battery cells 103 are hot pressed using the battery cell hot pressing apparatus of this embodiment.

[0220] In this embodiment, the box 402 is provided with two openings, one on opposite sides of the box 402. One opening allows the jig module 401 loaded with battery cells 103 to enter the box 402, while the other opening is used to remove the jig module 401 loaded with battery cells 103 from the box 402. The insertion and removal of the jig module 401 are performed on both sides of the box 402, fully utilizing the space outside the box 402.

[0221] In this embodiment, the heating mechanism includes a first heating element, which is disposed on the inner wall of the box 402 and utilizes the heat generated by the first heating element to heat the interior space of the box 402. Specifically, the first heating element can be disposed on the side walls of the box 402, the bottom wall of the box 402, and the top wall of the box 402.

[0222] The first heating element may be, but is not limited to, an electromagnetic heater and a resistive heater. When the first heating element is powered on, the first heating element can generate heat quickly, causing the temperature inside the box 402 to rise rapidly.

[0223] Specifically, this can be achieved by providing a disc-shaped heating tube on the inner wall of the box body 402 .

[0224] In order to prevent the heat inside the box 402 from being transferred to the outside of the box 402 and avoid heat loss, an insulation layer can be set on the side wall of the box 402. The insulation layer is set between the side wall of the box 402 and the first heating element to isolate the heat transfer path to the side wall of the box 402.

[0225] In this embodiment, the fixture module 401 includes at least two trays 203, which are used to support the battery cells 103. The trays 203 are stacked vertically, and adjacent trays 203 are removable. After placing the battery cells 103 on each tray 203, the battery cells 103 are placed together, with the battery cells 103 spaced apart from the trays 203. Both sides of the battery cells 103 are in contact with the trays 203. Adjacent trays 203 cooperate to generate a compressive force on the battery cells 103 located between the adjacent trays 203.

[0226] The pressing mechanism can be used to apply a pressing force to the battery cells 103 on the uppermost tray 203. The pressing mechanism applies a pressing force to the jig module 401 while also applying a pressing force to the battery cells 103 on the uppermost tray 203.

[0227] Specifically, the above-mentioned clamping mechanism includes a pressure plate assembly and a third driving mechanism 405. The pressure plate assembly can be raised and lowered inside the box body 402. The size of the lower surface of the pressure plate assembly is adapted to the battery cell 103 or the tray 203, and is used for squeezing and contacting the upper surface of the battery cell 103 on the tray 203 located on the top layer.

[0228] The third driving mechanism 405 is used to drive the pressing plate assembly to move up and down, and can drive the pressing plate assembly to press tightly on the battery cells 103 on the uppermost tray 203 .

[0229] Specifically, the third driving mechanism 405 may be, but is not limited to, configured in the form of a cylinder, a hydraulic cylinder, an electric cylinder, a screw-nut transmission assembly, a rack-and-pinion transmission assembly, or the like.

[0230] In this embodiment, the third drive mechanism 405 is configured as a screw-nut transmission assembly, including a motor, a reducer, and a screw-nut transmission assembly. The screw of the screw-nut transmission assembly is arranged in the vertical direction and is rotatably connected to the housing 402. The nut of the screw-nut transmission assembly is connected to the pressure plate assembly and is slidably connected to the housing 402. It can only move up and down relative to the housing 402, thereby driving the pressure plate assembly to rise and fall. The motor is fixed to the outside of the housing 402 and is located at the top of the housing 402. The input shaft and output shaft of the reducer are respectively connected to the output shaft of the motor and the screw. The operation of the motor drives the screw-nut transmission assembly to operate, thereby causing the pressure plate assembly to reciprocate in the vertical direction.

[0231] The pressure plate assembly includes a pressure plate 406, a second heating element, a connecting bracket 407, and a heat shield 408. The connecting bracket 407 is used to connect the pressure plate 406 to the output of the third drive mechanism 405. The pressure plate 406 is used to contact the battery cells 103 on the top tray 203. The second heating element can be disposed within the pressure plate 406 to heat the pressure plate 406, increasing its temperature and ensuring a thermal compression effect on the battery cells 103 on the top tray 203.

[0232] In order to prevent the heat generated by the second heating element from being transferred to the third driving mechanism 405, a heat insulation plate 408 is provided between the pressing plate 406 and the connecting bracket 407 to reduce heat loss.

[0233] The second heating element is the same as the first heating element, and can be, but is not limited to, an electromagnetic heater and a resistive heater.

[0234] Specifically, this can be achieved by arranging a heating tube inside the heating plate.

[0235] A first guide structure is provided between the pressure plate assembly and the box body 402 for guiding the lifting and lowering movement of the pressure plate assembly to ensure smooth lifting and lowering movement of the pressure plate assembly.

[0236] The connecting bracket 407 includes a mounting plate and a connecting portion. The heat insulating plate 408 is provided on the lower surface of the mounting plate and connected to the mounting plate. The pressing plate 406 is connected to the heat insulating plate 408. The connecting portion is provided on the upper surface of the heat insulating plate 408 and is used to connect to the output end of the third driving mechanism 405.

[0237] The first guide structure may be provided between the mounting plate and the box body 402 , or between the pressing plate 406 and the box body 402 , without limitation thereto.

[0238] The battery cell hot pressing device in the embodiment of the present invention further includes a pressure measuring element 409 for detecting the pressure between the output end of the third driving mechanism 405 and the pressing plate assembly.

[0239] Specifically, the connection portion of the pressure plate assembly is slidably connected to the output end of the third drive mechanism 405. A limiting flange is provided at the lower end of the output end of the third drive mechanism 405 to prevent the connection portion from slipping. In other words, the pressure plate assembly is suspended from the output end of the third drive mechanism 405. A pressure measuring element 409 is provided between the upper surface of the mounting plate and the output end of the third drive mechanism 405.

[0240] The output end of the third drive mechanism 405 is configured as a spherical surface, and a pressure-bearing block 417 is disposed on the upper surface of the pressure measuring element 409. The spherical surface of the output end of the third drive mechanism 405 can abut against the upper surface of the pressure-bearing block 417. This arrangement allows the output end of the third drive mechanism 405 to be movably connected to the pressure plate assembly. Combined with the first guide structure between the pressure plate assembly and the housing 402, this ensures smooth lifting and lowering of the pressure plate assembly while reducing the assembly precision requirements between the third drive mechanism 405 and the pressure plate assembly. The provision of the pressure-bearing block 417 prevents direct contact between the output end of the third drive mechanism 405 and the pressure measuring element 409, thereby preventing damage to the pressure measuring element 409.

[0241] The pressure measuring element 409 may be a pressure sensor. A pressure gauge is provided on the outside of the box 402 . The pressure gauge is electrically connected to the pressure sensor and is used to display the pressure value detected by the pressure sensor.

[0242] The battery cell hot pressing device in the embodiment of the present invention further includes a tab testing device for testing the insulation performance of the battery cell 103 .

[0243] The tray 203 is provided with a first connector 212. When the battery cell 103 is placed on the tray 203, the tabs of the battery cell 103 can just make electrical contact with the first connector 212. Each tray 203 is provided with two first connectors 212, corresponding to the positive tab and negative tab of the battery cell 103 respectively.

[0244] Second connectors are provided on the inner wall of the box 402 or the door assembly 403 . Each pair of second connectors is electrically connected to the tab test device via a relay. The second connectors serve as connection contacts of the tab test device.

[0245] The second connecting members are arranged in pairs and multiple pairs are provided. The second connecting members correspond to the first connecting members one by one, and each pair of second connecting members corresponds to two first connecting members 212 on the tray 203 respectively.

[0246] When the jig module 401 is placed inside the box 402 and the door assembly 403 is in the closed state, the above-mentioned second connectors can just be in electrical contact with the first connectors 212 of the jig module 401. By controlling the action of the relay, each pair of the second connectors, the first connectors 212, the battery cells and the tab test devices form a test circuit in turn, thereby testing the insulation performance of each battery cell 103 in turn.

[0247] It should be noted that the specific principles and structures of the tab test device are well-known to those skilled in the art, and therefore will not be described in detail here. This embodiment merely improves the connection method between the battery cell and the tab test device.

[0248] The structure of the tray 203 is as follows: Figures 26 to 28 As shown, the first connecting member 212 includes a support portion 410, a pressing portion 416 and an elastic member. The support portion 410 is arranged above the end of the tray 203 and is used to support the tabs of the battery cells 103. The pressing portion 416 is arranged below the end of the tray 203. The pressing portion 416 corresponds to the support portion 410 one-to-one. When adjacent trays 203 are stacked together, the pressing portion 416 of the upper tray 203 is directly opposite to the support portion 410 of the lower tray. The elastic member is arranged between the pressing portion 416 and the tray 203. The elastic member can exert a downward force on the pressing portion 416, ensuring that the pressing portion 416 of the upper tray 203 can press the tabs of the battery cells of the lower tray 203 onto the support portion 410, so that the tabs of the battery cells 103 can effectively contact the support portion 410 and the pressing portion 416, thereby ensuring the accuracy of the test results of the insulation performance of the battery cells 103.

[0249] The support portion 410 is made of a conductive material. The pressing portion 416 and the support portion 410 are in contact with the tab of the battery cell 103, thereby achieving electrical contact between the first connector 212 and the tab of the battery cell 103. The second connector is made of a conductive material. When the door assembly 403 is in the closed state, the support portion is in contact with the second connector, thereby achieving electrical contact between the first connector 212 and the second connector, thereby achieving connection between the tab of the battery cell 103 and the tab testing device.

[0250] Alternatively, the support portion 410 and the pressing portion 416 are both made of a conductive material, and the pressing portion 416 and the support portion 410 are in contact with the tab of the battery cell 103, thereby achieving electrical contact between the first connector 212 and the tab of the battery cell 103. The second connector is made of a conductive material, and when the door assembly 403 is in the closed state, ensuring that at least one of the support portion and the pressing portion is in contact with the second connector, electrical contact between the first connector 212 and the second connector is achieved, thereby achieving connection between the tab of the battery cell 103 and the tab testing device.

[0251] To prevent displacement between adjacent trays 203 when pressure is applied to the jig module 401, a second guide structure is provided between adjacent trays 203. Specifically, the second guide structure is provided in the form of a guide post, which is provided on each tray 203. The first end of the guide post extends above the tray 203, and the second end extends below the tray 203. A guide hole is provided at the second end of the guide post, which can accommodate the first end of another guide post. The two guide posts slide together to guide the relative displacement of adjacent trays 203.

[0252] In this embodiment of the present invention, a support platform 412 and a lifting mechanism 413 are further provided at the inner bottom of the box 402. The support platform 412 is used to support the fixture module 401. The support platform 412 is arranged inside the box 402 so as to be liftable, and the lifting mechanism 413 is used to drive the support platform 412 to rise and fall.

[0253] The lifting mechanism 413 may be, but is not limited to, a pneumatic cylinder, a hydraulic cylinder, an electric cylinder, etc. arranged in a vertical direction.

[0254] In an embodiment of the present invention, the door assembly 403 can be configured as an accordion door. Specifically, the door assembly 403 includes an accordion door and a drive assembly. The first end of the accordion door, which extends in a direction relative to the housing 402, is fixed relative to the housing 402, and the second end is slidably connected to the housing 402, with the sliding direction being consistent with the direction of extension and contraction of the accordion door. As the second end of the accordion door slides, it can move closer to or further away from the first end of the accordion door. When the second end of the accordion door moves closer to the first end, the door assembly 403 opens; when the second end of the accordion door moves further away from the first end, the door assembly 403 closes.

[0255] The driving assembly is used to drive the second end of the accordion door toward or away from the first end of the accordion door, see Figures 21 to 24 , it should be noted that, Figure 21 to 2 Figure 4 Only the drive components are shown, and the organ door is not shown.

[0256] Specifically, the above-mentioned driving assembly can be configured as a connecting rod mechanism, such as Figure 24 As shown, the accordion door expands and contracts horizontally, with one vertical edge fixedly connected to the housing 402 and the other vertical edge connected to a support rod 419. Both ends of the support rod 419 are slidably connected to the housing 402 via guide rails. A vertical telescopic member 420 is mounted on the housing 402, the movable end of which is pivotally connected to the end of the support rod 419 via a connecting rod 421. When the vertical telescopic member 420 expands and contracts, it causes the support rod 419 to slide left and right, causing the second end of the accordion door to move closer to or further from its first end, thereby opening and closing the accordion door.

[0257] The above-mentioned driving components are provided in two groups, which are respectively provided at the upper and lower ends of the accordion door. The two driving components operate synchronously and drive the accordion door to open or close at the same time, which can improve the stability of the opening and closing action of the door component 403.

[0258] The above-mentioned driving assembly can be, but is not limited to, a cylinder, a hydraulic cylinder, an electric cylinder, etc. arranged in a vertical direction.

[0259] Seals are provided between the upper edge of the accordion door and the box body 402, as well as between the lower edge of the accordion door and the box body 402. The extending direction of the seals is consistent with the expansion and contraction direction of the accordion door. The seals are used to seal the gap between the accordion door and the box body 402 to further prevent heat loss.

[0260] The door assembly 403 includes two sets of accordion doors and a drive assembly. The two sets of accordion doors are symmetrically arranged to jointly control the opening and closing of the opening. Figures 21 to 23 .

[0261] The sealing member may be an inflatable sealing ring connected to an inflation and deflation system. When the door assembly 403 is opened and closed, the gas in the inflatable sealing ring is discharged, thereby reducing the friction on the door assembly 403. When the door assembly 403 is in the closed state, air is inflated into the inflatable sealing ring, so that the inflatable sealing ring contacts the door assembly 403, reducing the gap and preventing heat loss.

[0262] The battery cell hot pressing workstation in this embodiment is provided with a plurality of hot pressing devices 5 . The battery cells 103 are hot pressed by using a plurality of hot pressing devices 5 , which can improve the hot pressing efficiency of the battery cell hot pressing workstation.

[0263] In one embodiment, Figure 1 and Figure 2 As shown, each hot pressing device 5 can be provided with two openings, which are respectively provided on opposite sides of the box body. The second loading device and the first unloading device are respectively provided on opposite sides of the hot pressing device 5 and can correspond to the openings of the box body.

[0264] In another embodiment, the box body has one opening, and the second loading device and the first unloading device are both arranged on a side corresponding to the opening of the box body, such as Figure 30 and Figure 31 shown.

[0265] In addition, in one embodiment, the input line 1 and the output line 8 can be arranged in parallel, and the cell transport device is arranged between the input line and the output line. Figure 1 and Figure 2 In another embodiment, the input line 1 and the output line 8 can also be arranged vertically, and the battery cell transport device is arranged between the input line and the output line, as shown. Figure 30 and Figure 31 shown.

[0266] An embodiment of the present invention further provides a battery cell hot pressing method, which is implemented based on the battery cell hot pressing device of any of the above embodiments, comprising the steps of:

[0267] The battery cells are fed one by one into the first loading device 2 via the input line 1;

[0268] The first loading device 2 converts the battery cells into a stacked state;

[0269] The battery cell transport device 3 uses at least two trays to carry out the stacked battery cells as a whole;

[0270] The second loading device 4 takes the tray and battery cells out of the battery cell transfer device 3 and presses at least two layers of trays and battery cells together;

[0271] The second loading device 4 transports at least two layers of trays and battery cells in a compacted state into the hot pressing device 5;

[0272] The hot pressing device 5 performs hot pressing treatment on at least two layers of trays and battery cells;

[0273] The first unloading device 6 takes out at least two layers of trays and battery cells that have been hot-pressed as a whole, and controls the separation of each layer of trays and battery cells;

[0274] The battery cell transfer device 3 takes out at least two layers of trays and the battery cells as a whole from the first unloading device 6;

[0275] The battery cell transfer device 3 places at least two layers of battery cells in the second unloading device 7;

[0276] The second unloading device 7 outputs the stacked cells one by one to the output line 8 .

[0277] In addition, an embodiment of the present invention further provides a battery cell production system, comprising the battery cell hot pressing device as described in any of the above embodiments.

[0278] Thus, the battery cell hot pressing method and battery cell production system provided by the embodiments of the present invention can effectively improve the efficiency of battery cell hot pressing. The derivation process of this beneficial effect is generally similar to the derivation process of the beneficial effect brought about by the above-mentioned battery cell hot pressing equipment, and will not be repeated here.

[0279] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A battery core hot pressing device, characterized in that: An input line (1), a first loading device (2), a cell transfer device (3), a second loading device (4), a hot pressing device (5), a first unloading device (6), a second unloading device (7) and an output line (8) are provided, wherein: The input line (1) is used to input the battery cell (103) into the first loading device (2); The first loading device (2) is used to convert the battery cells (103) input in a flat state into a stacked state; The battery cell transport device (3) comprises: Transfer device body (202); The base (201) is used to connect with the transfer device body (202); the transfer device body (202) can drive the base (201) to flip in the vertical direction; At least two layers of trays (203) are detachably arranged on the base (201), a distance is provided between at least two adjacent trays (203), and the trays (203) correspond one-to-one to the battery cells (103) in each layer in a stacked state; A pressing assembly having at least two first pressing portions (205), wherein the first pressing portions (205) correspond to the tray (203) on a one-to-one basis, and the pressing assembly is configured to press the battery cell (103) onto the tray (203), and the battery cell transfer device (3) can lift the battery cell (103) in the first loading device (2) as a whole through the tray (203); The second loading device (4) is used to take out the battery cells (103) and trays (203) in a stacked state from the battery cell transfer device (3) and to compact the stacked battery cells (103) and trays (203). The second loading device (4) is also used to input the compacted battery cells (103) and trays (203) into the hot pressing device (5). The hot pressing device (5) is used to perform hot pressing testing on the battery cells (103) and the tray (203) in a stacked state as a whole; The first unloading device (6) is used to remove the battery cells (103) and trays (203) that have been hot-pressed in the hot-pressing device (5) as a whole, and to separate the battery cells (103) and trays (203) at each layer; The battery cell transfer device (3) is further used to remove the battery cell (103) and the tray (203) from the first unloading device (6), and place the battery cell (103) in the second unloading device (7); The second unloading device (7) is used to output the stacked battery cells (103) one by one to the output line (8).

2. The battery core hot pressing equipment according to claim 1, characterized in that: The first loading device (2) and the second unloading device (7) both comprise: A first support frame (101); A gripping mechanism (102) is slidably arranged on the first support frame (101) in a vertical direction, and the gripping mechanism (102) includes at least two groups of gripping components, and the at least two groups of gripping components are spaced apart in the vertical direction; The first driving mechanism is used to drive the grasping mechanism (102) to move in a vertical direction.

3. The battery core hot pressing equipment according to claim 2, characterized in that: Each group of the grabbing components comprises at least one pair of support members (104), and the support members (104) are used to support the ends of the battery cores (103).

4. The battery core hot pressing equipment according to claim 3, characterized in that: The gripping mechanism (102) further comprises: A mounting frame (107) is slidably connected to the first support frame (101), with the sliding direction being arranged along the vertical direction; A first bracket (108) and a second bracket (109) are arranged on the mounting frame (107); the first bracket (108) and the second bracket (109) are capable of approaching and moving away from each other in a transverse direction of the first support frame (101); a distance is provided between the first bracket (108) and the second bracket (109); and the support members (104) are respectively provided on opposite sides of the first bracket (108) and the second bracket (109); The transverse drive assembly (110) is configured to drive the first bracket (108) and the second bracket (109) toward and away from each other.

5. The battery core hot pressing equipment according to claim 1, characterized in that: The first pressing portion (205) is slidably arranged on the base (201), and the sliding direction is perpendicular to the supporting surface of the tray (203); The pressing assembly further comprises a first pressing drive assembly (206), wherein the first pressing drive assembly (206) is configured to drive the first pressing portion (205) to slide back and forth relative to the base (201).

6. The battery core hot pressing equipment according to claim 1, characterized in that: The width of the first pressing portion (205) is smaller than the width of the battery core (103).

7. The battery core hot pressing equipment according to claim 1, characterized in that: The base (201) is provided with a first fork arm assembly (210), and the tray (203) is provided with a fork-taking hole (308), and the first fork arm assembly (210) cooperates with the fork-taking hole (308).

8. The battery core hot pressing equipment according to claim 1, characterized in that: The tray (203) is provided with a first connector (212) for connecting the tab of the battery cell (103) and a tab testing system.

9. The battery core hot pressing equipment according to claim 1, characterized in that: The second loading device (4) and the first unloading device (6) both comprise: A second support frame (301); a supporting mechanism, arranged on the second support frame (301), the supporting mechanism comprising at least two supporting assemblies (304) for supporting the tray (203) and the battery cell (103), the supporting surfaces of at least two supporting assemblies (304) being parallel to each other and distributed layer by layer in a vertical direction, and adjacent supporting assemblies (304) being capable of relative displacement; The second driving mechanism (305) is used to drive the adjacent supporting components (304) to move relative to each other.

10. The battery core hot pressing equipment according to claim 9, characterized in that: The tray (203) is provided with a fork-taking hole (308); The supporting assembly (304) comprises a second fork arm assembly, the second fork arm assembly is slidably connected to the second support frame (301), and the second fork arm assembly cooperates with the fork-taking hole (308).

11. The battery core hot pressing equipment according to claim 9, characterized in that: It also includes a pressing mechanism, which is arranged above the supporting mechanism and is configured to press the battery core (103) located at the top of the supporting mechanism onto the supporting assembly (304).

12. The battery core hot pressing equipment according to claim 1, characterized in that: The hot pressing device (5) comprises: A box (402) has an internal accommodating space, and a side wall of the box (402) is provided with an opening for a jig module (401) to enter and exit the box (402) and a door assembly (403) for controlling the opening and closing state of the opening, wherein the jig module (401) is formed by at least two trays (203) stacked in a vertical direction, and adjacent trays (203) of the jig module (401) cooperate to generate a pressing force on the battery cells (103) located between the adjacent trays (203); a pressing mechanism, arranged on the top of the box (402), the pressing mechanism being configured to enable the jig module (401) to apply a pressing force to the battery cell (103); A heating mechanism is used to heat the internal space of the box (402).

13. The battery core hot pressing equipment according to claim 12, characterized in that: There are two openings, which are respectively arranged on two opposite sides of the box body (402).

14. The battery core hot pressing equipment according to claim 13, characterized in that: There are at least two hot pressing devices (5), which are arranged side by side between the second loading device (4) and the first unloading device (6).

15. The battery core hot pressing equipment according to claim 13, characterized in that: The opening is provided as one, and the second loading device (4) and the first unloading device (6) are both provided on a side corresponding to the opening.

16. The battery core hot pressing equipment according to claim 12, characterized in that: The heating mechanism comprises: The first heating element is arranged on the inner wall of the box (402).

17. The battery core hot pressing equipment according to claim 12, characterized in that: The pressing mechanism comprises: A pressure plate (406) assembly is arranged inside the box (402) in a liftable manner; The third driving mechanism (405) is used to drive the pressing plate (406) component to move up and down, and can drive the pressing plate (406) component to press the battery cell (103) on the uppermost tray (203).

18. The battery core hot pressing equipment according to claim 17, characterized in that: Also includes: The pressure measuring element (409) is used to detect the pressure between the output end of the third driving mechanism (405) and the pressure plate (406) assembly.

19. The battery core hot pressing equipment according to claim 12, characterized in that: Also includes: A tab testing device is provided for testing the insulation performance of the battery cell (103), wherein the tray (203) is provided with a first connector (212) capable of electrically contacting the tab of the battery cell (103), and the inner wall of the box (402) or the door assembly (403) is provided with a second connector capable of electrically contacting the first connector (212), and the second connector is electrically connected to the tab testing device.

20. The battery core hot pressing equipment according to claim 1, characterized in that: The input line (1) and the output line (8) are arranged in parallel, or the input line (1) and the output line (8) are arranged perpendicularly; the battery cell transport device (3) is arranged between the input line (1) and the output line (8).

21. A method for hot pressing a battery cell, characterized in that: The method is implemented based on the battery cell hot pressing device according to any one of claims 1 to 20, comprising the steps of: The battery cells (103) are fed one by one into the first feeding device (2) via the input line (1); The first loading device (2) converts the battery cells (103) into a stacked state; The battery cell transport device (3) carries out the stacked battery cells (103) as a whole via at least two trays (203); The second loading device (4) takes the tray (203) and the battery cell (103) out of the battery cell transfer device (3), and presses at least two layers of the tray (203) and the battery cell (103); The second loading device (4) transports at least two layers of the trays (203) and the battery cells (103) in a compressed state into the hot pressing device (5); The hot pressing device (5) performs hot pressing treatment on at least two layers of the trays (203) and the battery cells (103); The first unloading device (6) takes out at least two layers of the trays (203) and the battery cells (103) that have been subjected to the heat pressing treatment as a whole, and controls the separation of the trays (203) and the battery cells (103) at each layer; The battery cell transfer device (3) removes at least two layers of the trays (203) and the battery cells (103) as a whole from the first unloading device (6); The battery cell transfer device (3) places at least two layers of the battery cells (103) in the second unloading device (7); The second unloading device (7) outputs the stacked battery cells (103) one by one to the output line (8).

22. The battery core hot pressing method according to claim 21, characterized in that: The battery cell transfer device (3) places at least two layers of the battery cells (103) in the second unloading device (7), comprising: The battery cell transport device (3) flips at least two layers of the battery cells (103) by 180°; The battery cell transport device (3) places at least two layers of the battery cells (103) flipped 180° into the second unloading device (7).

23. A battery cell production system, characterized in that: Comprising the battery cell hot pressing equipment according to any one of claims 1 to 20.

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