Core combining equipment

Abstract

The utility model provides a core combining device, and relates to the technical field of battery manufacturing equipment, the core combining device comprises an overturning mechanism used for driving a battery core to overturn around a rotating shaft towards a core combining position, and a fixing mechanism used for fixing a tab arranged on the battery core, and when the overturning mechanism drives the battery core to overturn from an initial position to a preset position, the tab is fixed on the rotating shaft. The fixing mechanism is used for fixing the tab, and when the overturning mechanism drives the battery cell to overturn from the preset position to the cell closing position, the fixing mechanism is separated from the tab, and the rotating shaft is located at the joint of the tab and the battery cell. According to the core combining equipment provided by the invention, the tab can be prevented from being folded into the battery core, and the fixing mechanism can be prevented from interfering the process that the overturning mechanism drives the battery core to overturn from the preset position to the core combining position.

Description

Technical Field

[0001] The present application relates to the technical field of battery manufacturing equipment, and in particular to a core assembly device. Background Art

[0002] After the lithium battery adapter cover is welded or the tab cover is welded, the two cells need to be turned over. During the process of assembling the power battery cells, the tab shape is not controlled, resulting in the tab having a tendency to fold inside the cell, causing the cell to short-circuit or micro-short-circuit, affecting product quality.

[0003] Therefore, how to prevent the tabs from folding inward during the battery cell assembly process has become a problem that needs to be solved. Utility Model Content

[0004] The embodiment of the present application provides a cell assembling device for solving the technical problem of preventing the tabs from folding inwardly of the battery cell during the process of assembling the battery cells.

[0005] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0006] The embodiment of the present application provides a core closing device, which includes: a flipping mechanism, the flipping mechanism is used to drive the battery cell to flip around the rotation axis toward the core closing position;

[0007] Fixed mechanism;

[0008] When the flipping mechanism drives the battery cell to flip from the initial position to the preset position, the fixing mechanism is used to press the tab against the cover plate connected to the battery cell;

[0009] When the flipping mechanism drives the battery cell to flip from the preset position to the closed position, the fixing mechanism is separated from the tab;

[0010] The rotating shaft is located at the connection between the cover plate and the battery core.

[0011] Based on the above technical solution, the present application can also be improved as follows.

[0012] In a possible implementation, the flipping mechanism includes:

[0013] A first flip assembly, the first flip assembly is used to carry the first battery cell and drive the first battery cell to flip around a first rotation axis toward the closed position, the first rotation axis is a connection between the first battery cell and the cover plate;

[0014] A second flip assembly, the second flip assembly is used to carry the second battery cell and drive the second battery cell to flip around a second rotation axis toward the closed position, the second rotation axis is a connection between the second battery cell and the cover plate;

[0015] The core closing position is located between the first flip assembly and the second flip assembly;

[0016] The first battery cell and the second battery cell are both connected to the cover plate.

[0017] In a possible implementation, the first flip component includes:

[0018] A first flip plate, the first flip plate is used to carry the first battery cell;

[0019] A first driving unit, wherein the first driving unit is drivingly connected to the first flap;

[0020] Driven by the first driving unit, the first flip plate drives the first battery cell to flip around the first rotating shaft toward the closed cell position.

[0021] In a possible implementation, the second flip component includes:

[0022] A second flip plate, the second flip plate is used to carry the second battery cell, the first flip plate and the second flip plate are arranged at intervals along a first direction;

[0023] A second driving unit, the second driving unit drivingly connected to the second flap;

[0024] Driven by the second driving unit, the second flip plate drives the second battery core to flip around the second rotating shaft toward the closed core position.

[0025] In a possible implementation, the flipping mechanism further includes:

[0026] A first clamping assembly, the first clamping assembly is arranged on the first flip assembly, and the first clamping assembly is used to fix the first battery cell arranged on the first flip assembly;

[0027] A second clamping assembly, wherein the second clamping assembly is disposed on the second flip assembly, and the second clamping assembly is used to fix the second battery core disposed on the second flip assembly.

[0028] In a possible implementation, the first clamping assembly includes:

[0029] A first fixing member, the first fixing member is disposed at a first end of the first flip assembly;

[0030] A first movable member is disposed at a second end of the first flip assembly opposite to the first end, and the first movable member moves toward the first end to clamp the first battery cell installed on the first flip assembly between the first fixing member and the first movable member.

[0031] In a possible implementation, the second clamping assembly includes:

[0032] a second fixing member, the second fixing member being disposed at a third end of the second flip assembly;

[0033] The second movable member is arranged at a fourth end of the second flip assembly opposite to the second end, and the second movable member moves toward the third end to clamp the second battery cell installed on the second flip assembly between the second fixing member and the second movable member.

[0034] In a possible implementation, the fixing mechanism includes:

[0035] A pressing plate, in the height direction of the core-closing device, the tab is located between the pressing plate and the cover plate;

[0036] A third driving unit, the third driving unit is drivingly connected to the pressing plate;

[0037] The third driving unit is used to drive the pressing plate to move toward the pole lug and press the pole lug against the cover plate, and the third driving unit is used to drive the pressing plate to move away from the pole lug and detach from the pole lug.

[0038] In a possible implementation, when the pressing plate is in the first position, the cover plate and the pressing plate are spaced apart and staggered along the thickness direction of the tab;

[0039] When the pressing plate is in the second position, the cover plate and the pressing plate are spaced apart and arranged opposite to each other along the thickness direction of the tab;

[0040] When the pressing plate is in the third position, the pressing plate presses the pole lug against the cover plate along the thickness direction of the pole lug;

[0041] The third driving unit is used to drive the pressing plate to move back and forth between the first position and the second position, and the third driving unit is used to drive the pressing plate to move back and forth between the second position and the third position.

[0042] In a possible implementation, the pressing plate includes:

[0043] a first pressing plate, wherein the first pressing plate is connected to the third driving unit;

[0044] a second pressing plate, the second pressing plate being connected to the third driving unit, and the second pressing plate and the first pressing plate being arranged at intervals along a first direction;

[0045] The third driving unit is used to drive the first pressing plate and the second pressing plate to move toward each other or away from each other along the first direction.

[0046] The embodiment of the present application provides a cell closing device, which sets the cell on a flipping mechanism, and in the process of the flipping mechanism driving the cell to flip from the initial position to the preset position, the tab is pressed against the cover plate connected to the cell by the fixing mechanism, thereby preventing the tab from deflecting or flipping toward the inside of the cell during the flipping process of the cell, thereby preventing the cell from short-circuiting or micro-shorting and then flowing out due to the tab folding toward the inside of the cell during the flipping process of the cell, thereby improving product quality. In the process of the flipping mechanism driving the cell to flip from the preset position to the closing position, the tab is detached, thereby preventing the fixing mechanism from interfering with the flipping mechanism driving the cell to flip from the preset position to the closing position. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to 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 application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0048] Figure 1 A schematic diagram of the structure of a core combining device provided in an embodiment of the present application;

[0049] Figure 2 A schematic diagram of the structure of another corner of the core-closing device provided in an embodiment of the present application;

[0050] Figure 3 A schematic diagram of the structure of the cell closing device provided in an embodiment of the present application when the cell is in the initial position;

[0051] Figure 4 A schematic diagram of the structure of the cell closing device provided in an embodiment of the present application when the cell is in a preset position;

[0052] Figure 5 A schematic diagram of the structure of the cell closing device provided in an embodiment of the present application when the cell is in the cell closing position;

[0053] Figure 6 A schematic diagram of a process in which a cell closure device provided in an embodiment of the present application drives a cell closure;

[0054] Figure 7A schematic diagram of another angle of the process of the cell closure device provided in an embodiment of the present application driving the cell closure.

[0055] Description of reference numerals:

[0056] 10-battery cell;

[0057] 10a-first battery cell; 10b-second battery cell;

[0058] 20-ear;

[0059] 20a-first pole lug; 20b-second pole lug;

[0060] 30-cover plate;

[0061] 100- flip mechanism;

[0062] 110 - first flip assembly;

[0063] 111-First flap;

[0064] 120 - second flip assembly;

[0065] 121-Second flap;

[0066] 130 - first clamping assembly;

[0067] 131-first fixed member; 132-first movable member;

[0068] 140 - second clamping assembly;

[0069] 141 - second fixed member; 142 - second movable member;

[0070] 200-fixed mechanism;

[0071] 210-pressing plate;

[0072] 211-first pressing plate; 212-second pressing plate;

[0073] 220- third drive unit;

[0074] 221-first driving member; 222-second driving member; 223-third driving member;

[0075] 300-Base. DETAILED DESCRIPTION

[0076] As described in the background technology, during the cell assembly process, the prior art cell assembly process can easily cause the tabs to fold inwards of the cell during the cell assembly process, thereby causing a short circuit or micro-short circuit in the cell. Such cells with short circuits or micro-short circuits can easily lead to a reduction in the product qualification rate.

[0077] The reason for this problem is that when using the existing core assembly tooling structure, due to factors such as thickness deviation of the incoming battery cells and deviation of the tab state, the ultrasonic welding of the tab in the previous process cannot ensure the consistency of the tab folding state, and there is a situation where the tab is folded and inserted into the battery cell.

[0078] Although the prior art uses offline computed tomography (CT) for testing after the battery cells are assembled, this will result in additional equipment and labor costs, increasing the manufacturing cost of the battery cells. In addition, CT testing cannot fully guarantee the accuracy and consistency of the inspection.

[0079] In response to the above technical problems, the embodiment of the present application provides a core closing device, which sets the battery cell on a flipping mechanism, and in the process of the flipping mechanism driving the battery cell to flip from the initial position to the preset position, the tab is pressed against the cover plate connected to the battery cell by the fixing mechanism, thereby preventing the tab from deflecting or flipping toward the inside of the battery cell during the flipping process of the battery cell, thereby preventing the tab from flipping toward the inside of the battery cell during the flipping process of the battery cell, causing the battery cell to short-circuit or micro-short-circuit and then flow out, thereby improving product quality. In the process of the flipping mechanism driving the battery cell to flip from the preset position to the core closing position, the tab is detached, thereby preventing the fixing mechanism from interfering with the flipping mechanism driving the battery cell to flip from the preset position to the core closing position.

[0080] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.

[0081] refer to Figure 1 and Figure 2 The embodiment of the present application provides a core assembling device, which can be used for the core assembling process of multiple battery cells 10. For example, the core assembling device can be used for assembling two battery cells 10. When there are multiple battery cells 10, each battery cell 10 is connected with a tab 20 and a cover plate 30. One end of the cover plate 30 is connected to the battery cell 10, and one end of the tab 20 is also connected to the battery cell 10. The core assembling device may include a flipping mechanism 100 and a fixing mechanism 200.

[0082] refer to Figure 3 , Figure 4 and Figure 5During the core closing process, the flipping mechanism 100 can be used to carry the battery cell 10 and can be used to drive the battery cell 10 to flip around the rotation axis toward the core closing position. For example, during the preparation process of core closing, the battery cell 10 needs to be placed on the flipping mechanism 100 and fixed, and then the flipping mechanism 100 drives the battery cell 10 to flip around the rotation axis toward the core closing position to achieve the core closing of the battery cell 10.

[0083] In a specific implementation, the flipping mechanism 100 can drive the two battery cells 10 to flip toward the core-closing position together, thereby realizing the core-closing of the two battery cells 10 .

[0084] If it is necessary to combine the two battery cells 10, the opposite ends of the two battery cells 10 can be connected to the opposite ends of the cover plate 30. When the two battery cells 10 are combined, the cover plate 30 is simultaneously covered on the same side of the two battery cells 10. At this time, the tabs 20 on the two battery cells 10 are located between the cover plate 30 and the ends of the two battery cells 10.

[0085] refer to Figure 5 It can be understood that if the cell-joining device realizes the joining of two battery cells 10 , the two battery cells 10 after the joining are mirror-symmetrical about the plane where the joining positions are located.

[0086] refer to Figure 3 and Figure 4 , Figure 3 It is a structural schematic diagram when the flip mechanism 100 drives the battery cell 10 to be in the initial position. Figure 4 The structure diagram is a schematic diagram of the flip mechanism 100 driving the battery cell 10 to be in a preset position. The fixing mechanism 200 can be used to press the tab 20 of the battery cell 10 against the cover plate 30 connected to the battery cell 10. When the flip mechanism 100 drives the battery cell 10 to flip from the initial position to the preset position, the fixing mechanism 200 presses the tab 20 against the cover plate 30.

[0087] It is understandable that the rotating shaft may be the connection between the battery cell 10 and the cover plate 30 , that is, the flipping mechanism 100 drives the battery cell 10 to flip around the connection between the battery cell 10 and the cover plate 30 relative to the cover plate 30 and the tab 20 .

[0088] In the process of the flipping mechanism 100 driving the battery cell 10 to flip from the initial position to the preset position, the pole ear 20 is pressed against the cover plate 30 by the fixing mechanism 200, so that the pole ear 20 can be prevented from being deflected or flipped toward the inside of the battery cell 10 during the flipping of the battery cell 10. Furthermore, the problem of the battery cell 10 short-circuiting or micro-shorting outflowing after being folded toward the inside of the battery cell 10 during the flipping of the battery cell 10 can be avoided, thereby reducing the quality of the product.

[0089] refer to Figure 3It can be understood that the initial position can be the position when the battery cell 10 is placed on the flipping mechanism 100 and the flipping mechanism 100 does not drive the battery cell 10 to flip.

[0090] refer to Figure 4 It can be understood that the preset position can be a position between the initial position and the closed core position. When the flipping mechanism 100 drives the battery cell 10 to flip from the preset position to the closed core position, the probability of the tab 20 being deflected or folded inwardly toward the battery cell 10 in a non-fixed state is relatively low. Therefore, when the flipping mechanism 100 drives the battery cell 10 to flip to the preset position, the fixing mechanism 200 can release the fixation of the tab 20.

[0091] Therefore, when the flipping mechanism 100 drives the battery cell 10 to flip from the preset position to the core closing position, the fixing mechanism 200 can be separated from the tab 20 to release the state of pressing the tab 20 on the cover plate 30 .

[0092] By disengaging the pole ear 20 when the flipping mechanism 100 drives the battery cell 10 to flip from the preset position to the core closing position, it is possible to avoid the fixing mechanism 200 interfering with the flipping mechanism 100 driving the battery cell 10 to flip from the preset position to the core closing position, thereby improving the practicality of the core closing device.

[0093] In some examples, the detachment of the fixing mechanism 200 from the pole ear 20 can be understood as the fixing mechanism 200 no longer controlling and limiting the movement of the pole ear 20, for example, the fixing mechanism 200 no longer presses the pole ear 20 against the cover plate 30, and the fixing mechanism 200 will not affect the process in which the flipping mechanism 100 drives the battery cell 10 to flip from a preset position to a closed position.

[0094] refer to Figure 1 and Figure 2 In some embodiments, the core-closing device may further include a base 300, and the fixing mechanism 200 and the flipping mechanism 100 are both disposed on the base 300. The base 300 can be installed on a process production line of the battery cell 10 production process to improve the applicability of the core-closing device.

[0095] refer to Figure 4 In some embodiments, when the flipping mechanism 100 drives the battery cell 10 to flip around the rotation axis toward the closed position, the end surface of the battery cell 10 facing the tab 20 (such as Figure 4 11) around the axis of rotation to form a closing area (such as Figure 4 When the flipping mechanism 100 drives the battery cell 10 to flip from the preset position to the closing position, the fixing mechanism 200 is separated from the closing area.

[0096] By making the fixing mechanism 200 separate from the closing area when the flipping mechanism 100 drives the battery cell 10 to flip from the preset position to the closing position, the fixing mechanism 200 can be prevented from affecting the process in which the flipping mechanism 100 drives the battery cell 10 to flip from the preset position to the closing position, thereby improving the practicality of the closing device.

[0097] In some embodiments, the closing area may be an area during the closing process of the battery cell 10. When the battery cell 10 is not completely closed, the closing area may be an area between the end surface of the battery cell 10 facing the pole tab 20 and the pole tab 20. If the battery cell 10 is completely closed, and the end surface of the battery cell 10 facing the pole tab 20 can abut against the pole tab 20, the closing area may be a plane where the end surface of the battery cell 10 facing the pole tab 20 abuts against the pole tab 20.

[0098] refer to Figure 3 In a specific implementation, when the flip mechanism 100 is in the initial position, the end face of the battery cell 10 facing the tab 20 is in the same plane as the tab 20. At this time, there is an angle between the end face and the tab 20, and the angle of the angle is 180°. When the flip mechanism 100 drives the battery cell 10 to flip toward the core-closed position, the angle of the angle gradually decreases. With reference to 5, when the flip mechanism 100 drives the battery cell 10 to flip to the core-closed position, the angle between the end face and the tab 20 can be approximately 0°.

[0099] refer to Figure 4 In some embodiments, when the flipping mechanism 100 drives the battery cell 10 to flip to a preset position, an angle is formed between the end face of the battery cell 10 and the tab 20, and the angle is greater than or equal to 30° and less than or equal to 60°. For example, the angle may be 35°, 40°, 45°, 50°, or 55°.

[0100] If the angle is greater than 60°, for example, the angle is 65°, if the fixing mechanism 200 is separated from the pole ear 20, then in the process of the flipping mechanism 100 driving the battery cell 10 to flip from the position at the angle toward the closing position, the pole ear 20 is likely to be folded toward the inside of the battery cell 10, which may easily cause a short circuit or micro-short circuit problem in the battery cell 10 after the closing.

[0101] If the angle is less than xx°, for example, the angle is xx°, due to the small angle, the closing area is too small, and when the fixing mechanism 200 leaves the closing area, it is not conducive to the movement of the fixing mechanism 200, and the fixing mechanism 200 may touch the battery cell 10 or the tab 20 during the movement, thereby affecting the closing process of the battery cell 10 and the practicability of the closing equipment.

[0102] refer to Figure 1 and Figure 2In some embodiments, if the cell-closing device needs to flip and close two battery cells 10, for example, the two battery cells 10 are a first battery cell 10a and a second battery cell 10b, the first battery cell 10a is provided with a first pole tab 20a, and the second battery cell 10b is provided with a second pole tab 20b. The two battery cells 10 can be connected through a cover plate 30, and the first pole tab 20a and the second pole tab 20b are both located above the cover plate 30. The flip mechanism 100 may include a first flip assembly 110 and a second flip assembly 120, and the closing position is located between the first flip assembly 110 and the second flip assembly 120.

[0103] The first flip assembly 110 is used to carry the first battery cell 10 a and drive the first battery cell 10 a to flip around a first rotation axis toward a closed position. The first rotation axis is a connection point between the first battery cell 10 a and the cover plate 30 .

[0104] The second flip assembly 120 is used to carry the second battery cell 10 b and drive the second battery cell 10 b to flip around the second rotation axis toward the closed position. The second rotation axis is the connection between the second battery cell 10 b and the cover plate 30 .

[0105] The flipping mechanism 100 includes a first flipping assembly 110 and a second flipping assembly 120, and uses the first flipping assembly 110 to install and drive the first battery cell 10a to flip toward the core closing position, and uses the second flipping assembly 120 to drive the second battery cell 10b to flip toward the core closing position, thereby realizing the core closing process of the first battery cell 10a and the second battery cell 10b.

[0106] In some embodiments, the core closing position is located between the first flip assembly 110 and the second flip assembly 120, and the first flip assembly 110 and the second flip assembly 120 flip relative to each other. For example, the first flip assembly 110 can drive the first battery cell 10a to flip clockwise toward the core closing position, and the second flip assembly 120 can drive the second battery cell 10b to flip counterclockwise toward the core closing position.

[0107] Furthermore, the fixing mechanism 200 can simultaneously press the first pole lug 20a on the first battery cell 10a and the second pole lug 20b on the second battery cell 10b onto the cover plate 30 to prevent the first pole lug 20a from folding inward toward the first battery cell 10a during the flipping process of the first battery cell 10a, and to prevent the second pole lug 20b from folding inward toward the second battery cell 10b during the flipping process of the second battery cell 10b.

[0108] refer to Figure 1 and Figure 2In some embodiments, the first flip assembly 110 may include a first flip plate 111 and a first driving unit. The first flip plate 111 is used to carry the first battery cell 10a, and the first driving unit is driven to connect the first flip plate 111. Driven by the first driving unit, the first flip plate 111 can drive the first battery cell 10a to flip around the first rotation axis toward the closed position.

[0109] In a possible implementation, the structures of the first flip assembly 110 and the second flip assembly 120 may be the same.

[0110] refer to Figure 1 and Figure 2 In some embodiments, the second flip assembly 120 may include a second flip plate 121 and a second driving unit. The second flip plate 121 is used to carry the second battery cell 10b, and the second driving unit is driven to connect the second flip plate 121. Under the drive of the second driving unit, the second flip plate 121 drives the second battery cell 10b to flip around the second rotation axis toward the closed position.

[0111] refer to Figure 1 and Figure 2 In some embodiments, the first flap 111 and the second flap 121 are arranged along a first direction (eg Figure 1 The first battery cell 10a and the second battery cell 10b are arranged at intervals along the first direction, and the first electrode tab 20a on the first battery cell 10a and the second electrode tab 20b on the second battery cell 10b are arranged opposite to each other.

[0112] In a specific implementation, when the first battery cell 10a and the second battery cell 10b are respectively arranged on the first flip plate 111 and the second flip plate 121, the first pole ear 20a and the second pole ear 20b are arranged opposite to each other. At this time, the fixing mechanism 200 can simultaneously press the first pole ear 20a and the second pole ear 20b onto the cover plate 30.

[0113] refer to Figure 1 and Figure 2 In some embodiments, the flipping mechanism 100 may further include a first clamping assembly 130 and a second clamping assembly 140 .

[0114] The first clamping assembly 130 is disposed on the first flip assembly 110, and is used to fix the first battery cell 10a disposed on the first flip assembly 110. By providing the first clamping assembly 130, the first battery cell 10a disposed on the first flip assembly 110 can be clamped and fixed, so as to prevent the first battery cell 10a from falling during the flipping process of the first flip assembly 110, thereby improving the working stability of the first flip assembly 110.

[0115] The second clamping assembly 140 is disposed on the second flip assembly 120, and is used to fix the second battery cell 10b disposed on the second flip assembly 120. By providing the second clamping assembly 140, the second battery cell 10b disposed on the second flip assembly 120 can be clamped and fixed, so as to prevent the second battery cell 10b from falling during the flipping process of the second flip assembly 120, thereby improving the working stability of the second flip assembly 120.

[0116] By providing the first clamping assembly 130 and the second clamping assembly 140 , the installation stability of the battery cell 10 on the flip assembly can be improved, and the use stability of the cell closing device during the cell closing process can be improved.

[0117] In some embodiments, if the first flip assembly 110 includes a first flip plate 111 , the first clamping assembly 130 can be disposed on the first flip plate 111 , and the first clamping assembly 130 can clamp and fix the first battery cell 10 a on the first flip plate 111 .

[0118] If the second flip assembly 120 includes a second flip plate 121 , the second clamping assembly 140 can be disposed on the second flip plate 121 , and the second clamping assembly 140 can clamp and fix the second battery cell 10 b on the second flip plate 121 .

[0119] refer to Figure 1 and Figure 2 In some embodiments, the first clamping assembly 130 may include a first fixing member 131 and a first moving member 132 .

[0120] The first fixing member 131 is disposed at the first end of the first flip assembly 110, and the first moving member 132 is disposed at the second end of the first flip assembly 110 opposite to the first end. The first moving member 132 moves toward the first end to clamp the first battery cell 10a installed on the first flip assembly 110 between the first fixing member 131 and the first moving member 132.

[0121] In some embodiments, if the first flip assembly 110 includes a first flip plate 111, the first fixing member 131 can be disposed at a first end of the first flip plate 111, and the first moving member 132 can be disposed at a second end of the first flip plate 111. When the first battery cell 10a is disposed on the first flip plate 111, the first moving member 132 moves toward the first fixing member 131 to clamp the first battery cell 10a between the first fixing member 131 and the first moving member 132.

[0122] In some embodiments, the first movable member 132 can be connected to a driving member, and the driving member can drive the first movable member 132 to move toward the first fixed member 131 .

[0123] In other embodiments, the first clamping assembly 130 may also include two movable members, which are respectively arranged at opposite ends of the first flap 111, and the two movable members are driven by a driving member. Under the drive of the driving member, the two movable members move toward each other to clamp the first battery cell 10a arranged between the two movable members.

[0124] refer to Figure 1 and Figure 2 In some embodiments, the second clamping assembly 140 can adopt the same structural setting as the first clamping assembly, and the second clamping assembly 140 may include a second fixing member 141 and a second moving member 142 .

[0125] The second fixing member 141 is disposed at the third end of the second flip assembly 120, and the second moving member 142 is disposed at the fourth end of the second flip assembly 120 opposite to the second end. The second moving member 142 moves toward the third end to clamp the second battery cell 10b installed on the second flip assembly 120 between the second fixing member 141 and the second moving member 142.

[0126] refer to Figure 1 and Figure 2 In some embodiments, the fixing mechanism 200 may include a pressing plate 210 and a third driving unit 220 .

[0127] In the height direction of the core assembly equipment, the pole tab 20 is located between the pressing plate 210 and the cover plate 30. The pressing plate 210 is used to press the pole tab 20 on the battery cell 10 onto the cover plate 30. The third driving unit 220 is connected to the pressing plate 210 for driving. The third driving unit 220 is used to drive the pressing plate 210 to move toward the pole tab 20 and clamp the pole tab 20. The third driving unit 220 is reused to drive the pressing plate 210 to move away from the pole tab 20 and detach from the pole tab 20.

[0128] In a specific implementation, the battery cell 10 is placed on the flipping mechanism 100 and before it starts to flip, the third driving unit 220 can drive the pressure plate 210 to press the pole ear 20 on the battery cell 10 against the cover plate 30. When the flipping mechanism 100 drives the battery cell 10 to flip from an initial position to a preset position, the third driving unit 220 drives the pressure plate 210 to detach from the pole ear 20, and then the flipping mechanism 100 further drives the battery cell 10 to flip from the preset position to the closed position.

[0129] In some embodiments, if the flip mechanism 100 includes a first flip assembly 110 and a second flip assembly 120 , the pressure plate 210 can be disposed between the first flip assembly 110 and the second flip assembly 120 , and the pressure plate 210 can simultaneously press the first pole tab 20 a and the second pole tab 20 b onto the cover plate 30 .

[0130] refer to Figure 6 and Figure 7In some embodiments, when the pressing plate 210 is in the first position, the cover plate 30 and the pressing plate 210 are spaced and staggered along the thickness direction of the pole tab 20. When the pressing plate 210 is in the second position, the cover plate 30 and the pressing plate 210 are spaced and arranged opposite to each other along the thickness direction of the pole tab 20. When the pressing plate 210 is in the third position, the cover plate 30 and the pressing plate 210 clamp the pole tab 20 along the thickness direction of the pole tab 20.

[0131] The third driving unit 220 is used to drive the pressing plate 210 to reciprocate between the first position and the second position. The third driving unit 220 is also used to drive the pressing plate 210 to reciprocate between the second position and the third position.

[0132] The first position can be understood as the pressing plate 210 being located at a position outside the closing area between the battery cell 10 and the tab 20, and the pressing plate 210 and the cover plate 30 do not clamp the tab 20. The second position can be understood as the pressing plate 210 being located in the closing area, and the pressing plate 210 being located directly above the cover plate 30 and spaced from the tab 20 and the cover plate 30.

[0133] When the tab 20 needs to be clamped, the pressing plate 210 first moves from the first position to just above the cover plate 30 under the drive of the third driving unit 220, and the pressing plate 210 is at the second position. Afterwards, the pressing plate 210 is further moved toward the cover plate 30 along the second direction under the drive of the third driving unit 220 to press the tab 20 against the pressing plate 210.

[0134] When the pressing plate 210 needs to be separated from the tab 20 , the third driving unit 220 first drives the pressing plate 210 to move upward from the third position to the second position, and then drives the pressing plate 210 to move from the second position to the first position outside the closing area.

[0135] In a possible implementation, the third driving unit 220 may include a first driving member 221 and a second driving member 222. The first driving member 221 drives the pressing plate 210 to move between the first position and the second position, and the second driving member 222 is used to drive the pressing plate 210 to move between the second position and the third position.

[0136] In some embodiments, if the flip mechanism 100 includes a first flip assembly 110 and a second flip assembly 120, the first battery cell 10a is disposed in the first flip assembly 110, and the second battery cell 10b is disposed in the second flip assembly 120, then the first battery cell 10a and the second battery cell 10b can be combined. There can also be two pressing plates 210, one of which can press the first tab 20a on the first battery cell 10a onto the cover plate 30, and the other pressing plate 210 can press the second tab 20b on the second battery cell 10b onto the cover plate 30.

[0137] refer to Figure 1 and Figure 2 In some embodiments, the pressing plate 210 may also include a first pressing plate 211 and a second pressing plate 212. The first pressing plate 211 can fix the first tab 20a on the first battery cell 10a, and the second pressing plate 212 can fix the second tab 20b on the second battery cell 10b.

[0138] The first pressing plate 211 is connected to the third driving unit 220, the second pressing plate 212 is connected to the third driving unit 220, and the second pressing plate 212 is connected to the first pressing plate 211 along the first direction (eg Figure 1 The second direction is perpendicular to the first direction, and the third driving unit 220 is used to drive the first pressing plate 211 and the second pressing plate 212 to approach each other along the first direction.

[0139] refer to Figure 6 and Figure 7 In a specific implementation, when it is necessary to separate the first pressure plate 211 and the second pressure plate 212 from the first pole ear 20a and the second pole ear 20b, the initial position of the first pressure plate 211 and the second pressure plate 212 is the third position. At this time, the first pressure plate 211 and the second pressure plate 212 are in a clamped state with the cover plate 30, and the first pressure plate 211 and the second pressure plate 212 are arranged at intervals along the first direction.

[0140] In the process of moving the first pressing plate 211 and the second pressing plate 212 out of the closing area, the first pressing plate 211 and the second pressing plate 212 need to be lifted from the third position to the second position under the drive of the third driving unit 220, and then the third driving unit 220 drives the first pressing plate 211 and the second pressing plate 212 to move closer to each other. Further, the third driving unit 220 drives the first pressing plate 211 and the second pressing plate 212 in the state of moving closer to each other to move to the first position.

[0141] Before moving from the second position to the first position, the first pressing plate 211 and the second pressing plate 212 are moved closer to each other so that the first pressing plate 211 and the second pressing plate 212 are away from the two battery cells 10 to avoid damage to the two battery cells 10 caused by the first pressing plate 211 and the second pressing plate 212 .

[0142] In a specific implementation, when the first pressing plate 211 and the second pressing plate 212 are needed to fix the first pole ear 20a and the second pole ear 20b, the initial position of the first pressing plate 211 and the second pressing plate 212 is the first position, and the first pressing plate 211 and the second pressing plate 212 are in a state of being close to each other.

[0143] In the process of moving the first pressing plate 211 and the second pressing plate 212 toward the first pole tab 20a and the second pole tab 20b, the third driving unit 220 drives the first pressing plate 211 and the second pressing plate 212, which are close to each other, to move from the first position to the second position, and then the third driving unit 220 drives the first pressing plate 211 and the second pressing plate 212 to move in the opposite direction along the first direction, so that the first pressing plate 211 and the second pressing plate 212 are separated from each other. Further, the third driving unit 220 drives the first pressing plate 211 and the second pressing plate 212 to move toward the cover plate 30, so that the first pressing plate 211 presses the first pole tab 20a against the cover plate 30, and the second pressing plate 212 presses the second pole tab 20b against the cover plate 30.

[0144] In a possible implementation, the third driving unit 220 may further include a third driving member 223, which is connected to both the first pressure plate 211 and the second pressure plate 212, and is used to drive the first pressure plate 211 and the second pressure plate 212 to move closer to or away from each other along the first direction.

[0145] refer to Figure 1 In some embodiments, the pressing plate 210 may have two pressing plates 210, the two pressing plates 210 have the same structure, and the two pressing plates 210 are connected along the third direction (eg Figure 1 The two pieces are arranged at intervals (as shown by the arrow Z in the figure).

[0146] The third direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction, and the second direction is perpendicular to the plane where the first direction and the third direction are located.

[0147] It is understandable that two tabs 20 may be provided on one battery cell 10, and the two tabs 20 are provided along the length extension direction of the end surface. One of the pressing plates 210 can press one of the tabs 20 on the battery cell 10 onto the cover plate 30, and the other pressing plate 210 can press the other tab 20 on the battery cell 10 onto the cover plate 30.

[0148] By providing two pressing plates 210 , the clamping stability of the pressing plates 210 on the tabs 20 of the battery cells 10 can be improved, thereby improving the working stability of the cell assembly equipment.

[0149] When the battery cell 10 includes a first battery cell 10a and a second battery cell 10b, the flip mechanism 100 may include a first flip assembly 110 and a second flip assembly 120, and the pressing plate 210 may include a first pressing plate 211 and a second pressing plate 212. The first battery cell 10a may have two first tabs 20a, and the second battery cell 10b may have two second tabs 20b.

[0150] If the first battery cell 10a is placed in the first flip assembly 110, the two first pole tabs 20a can be arranged at intervals along the third direction, and the first pressing plates 211 of the two pressing plates 210 arranged at intervals along the third direction can respectively fix one of the first pole tabs 20a. Similarly, if the second battery cell 10b is placed in the second flip assembly 120, the two second pole tabs 20b can be arranged at intervals along the third direction, and the second pressing plates 212 on the two pressing plates 210 can respectively fix one of the second pole tabs 20b.

[0151] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0152] It should be noted that the phrases "in specific implementation", "in some embodiments", "in this embodiment", "exemplarily" and the like mentioned in the specification indicate that the described embodiment may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments that are explicitly or not explicitly described.

[0153] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0154] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0155] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0156] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application 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 replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A core-closing device, characterized in that: include: A flipping mechanism, the flipping mechanism is used to drive the battery cell to flip around the rotation axis toward the closed core position; Fixed mechanism; When the flipping mechanism drives the battery cell to flip from the initial position to the preset position, the fixing mechanism is used to press the tab against the cover plate connected to the battery cell; When the flipping mechanism drives the battery cell to flip from the preset position to the closed position, the fixing mechanism is separated from the tab; The rotating shaft is located at the connection between the cover plate and the battery core.

2. The core combining device according to claim 1, characterized in that: The turning mechanism comprises: A first flip assembly, the first flip assembly is used to carry the first battery cell and drive the first battery cell to flip around a first rotation axis toward the closed position, the first rotation axis is a connection between the first battery cell and the cover plate; A second flip assembly, the second flip assembly is used to carry the second battery cell and drive the second battery cell to flip around a second rotation axis toward the closed position, the second rotation axis is a connection between the second battery cell and the cover plate; The core closing position is located between the first flip assembly and the second flip assembly; The first battery cell and the second battery cell are both connected to the cover plate.

3. The core combining device according to claim 2, characterized in that: The first flip assembly comprises: A first flip plate, the first flip plate is used to carry the first battery cell; A first driving unit, wherein the first driving unit is drivingly connected to the first flap; Driven by the first driving unit, the first flip plate drives the first battery cell to flip around the first rotating shaft toward the closed cell position.

4. The core combining device according to claim 3, characterized in that: The second flip assembly comprises: A second flip plate, the second flip plate is used to carry the second battery cell, and the first flip plate and the second flip plate are arranged at intervals along a first direction; A second driving unit, the second driving unit drivingly connected to the second flap; Driven by the second driving unit, the second flip plate drives the second battery core to flip around the second rotating shaft toward the closed core position.

5. The core combining device according to claim 2, characterized in that: The flipping mechanism also includes: A first clamping assembly, the first clamping assembly is arranged on the first flip assembly, and the first clamping assembly is used to fix the first battery cell arranged on the first flip assembly; A second clamping assembly, wherein the second clamping assembly is disposed on the second flip assembly, and the second clamping assembly is used to fix the second battery core disposed on the second flip assembly.

6. The core combining device according to claim 5, characterized in that: The first clamping assembly comprises: A first fixing member, the first fixing member is disposed at a first end of the first flip assembly; A first movable member is disposed at a second end of the first flip assembly opposite to the first end, and the first movable member moves toward the first end to clamp the first battery cell installed on the first flip assembly between the first fixing member and the first movable member.

7. The core combining device according to claim 6, characterized in that: The second clamping assembly comprises: a second fixing member, the second fixing member being disposed at a third end of the second flip assembly; The second movable member is arranged at a fourth end of the second flip assembly opposite to the second end, and the second movable member moves toward the third end to clamp the second battery cell installed on the second flip assembly between the second fixing member and the second movable member.

8. The core combining device according to claim 1, characterized in that: The fixing mechanism comprises: A pressing plate, in the height direction of the core-closing device, the tab is located between the pressing plate and the cover plate; A third driving unit, the third driving unit is drivingly connected to the pressing plate; The third driving unit is used to drive the pressing plate to move toward the pole lug and press the pole lug against the cover plate, and the third driving unit is used to drive the pressing plate to move away from the pole lug and detach from the pole lug.

9. The core combining device according to claim 8, characterized in that: When the pressing plate is in the first position, the cover plate and the pressing plate are spaced apart and staggered along the thickness direction of the tab; When the pressing plate is in the second position, the cover plate and the pressing plate are spaced apart and arranged opposite to each other along the thickness direction of the tab; When the pressing plate is in the third position, the pressing plate presses the pole lug against the cover plate along the thickness direction of the pole lug; The third driving unit is used to drive the pressing plate to move back and forth between the first position and the second position, and the third driving unit is used to drive the pressing plate to move back and forth between the second position and the third position.

10. The core combining device according to claim 9, characterized in that: The pressing plate comprises: a first pressing plate, wherein the first pressing plate is connected to the third driving unit; a second pressing plate, the second pressing plate being connected to the third driving unit, and the second pressing plate and the first pressing plate being arranged at intervals along a first direction; The third driving unit is used to drive the first pressing plate and the second pressing plate to move toward each other or away from each other along the first direction.

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