Combining mechanism, chip combining device and chip combining method

Abstract

The present application relates to an assembly mechanism, a core alignment device and a core alignment method. The assembly mechanism includes: a core alignment platform and a plurality of alignment members. The core alignment platform has a receiving surface for successively receiving a first battery cell and a second battery cell. The first end surface of the first battery cell faces away from the receiving surface, and the first end surface of the second battery cell faces the receiving surface. The first end surface of the first battery cell is supported on the receiving surface, and the first end surface of the second battery cell is placed on the first end surface of the first battery cell. The plurality of alignment members are arranged around the core alignment platform, and the plurality of alignment members can position the first battery cell through the side surface of the first battery cell and position the second battery cell through the side surface of the second battery cell, so that the side surfaces of the first battery cell and the second battery cell are aligned. After the first end surface of the second battery cell is stacked on the first end surface of the first battery cell in the present application, the alignment members are used to position the positions of the first battery cell and the second battery cell after core alignment, which can ensure good alignment of the side surfaces of the two battery cells after core alignment, and thus ensure the core alignment effect.

Description

Technical Field

[0001] The present application relates to the technical field of battery manufacturing equipment, and particularly to a combining mechanism, a core combining device and a core combining method. Background Art

[0002] Traditional core combining devices mainly make two battery cells with their first end faces facing upward approach each other until the first end faces are attached by flipping. In this core combining method, the positions of the battery cells are prone to deviation during the flipping process, resulting in poor alignment of the two battery cells after core combination and affecting the core combination effect. Summary of the Invention

[0003] Based on this, it is necessary to provide a combining mechanism, a core combining device and a core combining method that can improve the above-mentioned defects for the problem of poor core combination effect caused by poor alignment of two battery cells after core combination in the prior art.

[0004] A combining mechanism for combining battery cells, the battery cells having a first end face and a second end face oppositely arranged in a first direction and a side face connecting the first end face and the second end face, the combining mechanism comprising:

[0005] A core combining platform having a receiving surface for sequentially receiving a first battery cell and a second battery cell, the first end face of the first battery cell facing away from the receiving surface, the first end face of the second battery cell facing the receiving surface, the second end face of the first battery cell being supported on the receiving surface, and the first end face of the second battery cell being placed on the first end face of the first battery cell; and

[0006] A plurality of aligning members arranged around the core combining platform, the plurality of aligning members being capable of positioning the first battery cell through the side face of the first battery cell and positioning the second battery cell through the side face of the second battery cell so that the side faces of the first battery cell and the second battery cell are aligned.

[0007] In one embodiment, it further includes a top cover extraction member that is controlled to move between a first position and a second position;

[0008] When the top cover extraction member is located at the first position, the top cover extraction member is used to extract the top cover, and when the top cover extraction member is located at the second position, the extracted top cover is assembled and connected to the first battery cell and the second battery cell.

[0009] In one embodiment, the top cover extraction member is further configured to be able to move to a third position, and the third position is located between the first position and the second position;

[0010] After picking up the first battery cell on the cell combining platform, the top cover extractor moves from the first position to the third position, so that the top cover is pre-assembled and connected to the first battery cell;

[0011] After picking up the second battery cell on the cell combining platform, the top cover extractor moves from the third position to the second position, so that the top cover is assembled and connected to the first battery cell and the second battery cell.

[0012] In one embodiment, at least one of the plurality of alignment members is an avoidance alignment member. The avoidance alignment member and the top cover extractor located at the second position are arranged on the same side of the cell combining platform. The avoidance alignment member is configured to be able to approach or move away from the cell combining platform along the first direction;

[0013] When the top cover extractor moves towards the second position, the avoidance alignment member moves away from the cell combining platform along the first direction to avoid the top cover.

[0014] In one embodiment, it further includes a pressing member, and the pressing member is configured to approach or move away from the cell combining platform along the first direction;

[0015] When the pressing member approaches the cell combining platform, it can abut against the second end face of the second battery cell and press the first battery cell and the second battery cell tightly.

[0016] In one embodiment, it further includes a bottom plate, and the cell combining platform is elastically connected to the bottom plate along the first direction.

[0017] In one embodiment, it further includes a flipping assembly. The flipping assembly is connected to the cell combining platform and is configured to be able to drive the cell combining platform to rotate around a rotating shaft parallel to the third direction. When the cell combining platform rotates, it can move between a fourth position and a fifth position;

[0018] When the cell combining platform is located at the fourth position, it is used to pick up the first battery cell and the second battery cell so that the first battery cell and the second battery cell are combined. When the cell combining platform is located at the fifth position, it is used to discharge the combined first battery cell and second battery cell;

[0019] The third direction is perpendicular to the first direction.

[0020] In addition, an embodiment of the present application further provides a cell combining device, including a handling mechanism and the combining mechanism provided in any embodiment. The handling mechanism is used to transport the first battery cell and the second battery cell to the cell combining platform.

[0021] In addition, an embodiment of the present application further provides a core combining method, including: picking up a first battery cell, with the first end face of the first battery cell facing away from the receiving surface of the core combining platform, placing the second end face of the first battery cell on the receiving surface, and the first end face and the second end face are oppositely arranged along a first direction;

[0022] Picking up a second battery cell, with the first end face of the second battery cell facing the receiving surface, and placing the first end face of the second battery cell on the first end face of the first battery cell;

[0023] Abutting a plurality of aligning members against the side surface of the first battery cell to position the first battery cell, and abutting against the side surface of the second battery cell to position the second battery cell, so that the side surfaces of the first battery cell and the second battery cell are aligned. The plurality of aligning members are arranged around the core combining platform, and the side surface connects the first end face and the second end face.

[0024] In one embodiment, after the step of abutting a plurality of aligning members against the side surface of the first battery cell to position the first battery cell, and abutting against the side surface of the second battery cell to position the second battery cell, so that the side surfaces of the first battery cell and the second battery cell are aligned, it further includes:

[0025] Moving a top cover extraction member with a top cover extracted to a second position so that the top cover is assembled and connected to the first battery cell and the second battery cell.

[0026] In one embodiment, after the step of placing the second end face of the first battery cell on the receiving surface, it further includes:

[0027] Switching the plurality of aligning members to a positioning state to position the first battery cell. The plurality of aligning members in the positioning state abut against the side surface of the first battery cell located on the core combining platform;

[0028] Switching the plurality of aligning members to a non-positioning state to release the first battery cell. The plurality of aligning members in the non-positioning state are at least away from the intersecting sides of the side surface of the first battery cell located on the core combining platform;

[0029] Correspondingly, the step of abutting a plurality of aligning members against the side surface of the first battery cell to position the first battery cell, and abutting against the side surface of the second battery cell to position the second battery cell, so that the side surfaces of the first battery cell and the second battery cell are aligned, includes:

[0030] Switching the plurality of aligning members to a positioning state. The plurality of aligning members in the positioning state abut against the side surface of the first battery cell and the side surface of the second battery cell so that the side surfaces of the first battery cell and the second battery cell are aligned.

[0031] In one embodiment, after the step of switching the plurality of alignment members to the positioning state to position the first battery cell, the method further includes:

[0032] Moving the top cover extractor that has extracted the top cover to a third position, so that the top cover is pre-assembled and connected to the first battery cell, and the third position is farther from the cell combining platform than the second position;

[0033] Correspondingly, the step of moving the top cover extractor that has extracted the top cover to the second position, so that the top cover is assembled and connected to the first battery cell and the second battery cell, includes:

[0034] Moving the top cover extractor from the third position to the second position, so that the top cover is assembled and connected to the first battery cell and the second battery cell.

[0035] In the above combining mechanism, during actual operation, the first battery cell and the second battery cell are successively placed on the receiving surface of the cell combining platform. When the cell combining platform picks up the first battery cell, the first end face of the first battery cell faces away from the receiving surface, and at this time, the second end face of the first battery cell is placed on the receiving surface. When the cell combining platform picks up the second battery cell, the first end face of the second battery cell faces the receiving surface, and at this time, the first end face of the second battery cell is placed on the first end face of the first battery cell, so that the first end faces of the two battery cells are in contact. After the first battery cell and the second battery cell are in contact, a plurality of alignment members position the first battery cell and the second battery cell, so that the side faces of the first battery cell and the second battery cell are aligned, thereby realizing the cell combination of the two. Compared with the prior art, after the first end face of the second battery cell is stacked on the first end face of the first battery cell, the position of the first battery cell and the second battery cell after cell combination is positioned by the alignment members, which can ensure good alignment of the side faces of the two battery cells after cell combination, and further ensure the cell combination effect. Description of the Drawings

[0036] Figure 1 Is a front view of the combining mechanism in an embodiment of the present application;

[0037] Figure 2 Is Figure 1 The side view of the combining mechanism shown;

[0038] Figure 3 Is Figure 1 The top view of the combining mechanism shown;

[0039] Figure 4 Is a front view of the combining mechanism in an embodiment of the present application;

[0040] Figure 5 Is Figure 4 The side view of the combining mechanism shown;

[0041] Figure 6 is Figure 4 a partial structural schematic diagram of the bonding mechanism shown;

[0042] Figure 7 is a front view of the bonding mechanism in an embodiment of the present application;

[0043] Figure 8 is Figure 7 a top view of the bonding mechanism shown;

[0044] Figure 9 is a front view of the bonding mechanism in an embodiment of the present application;

[0045] Figure 10 is Figure 9 a top view of the bonding mechanism shown;

[0046] Figure 11 is a schematic diagram of the core combining process of the bonding mechanism in an embodiment of the present application;

[0047] Figure 12 is a schematic flow diagram of the core combining method in an embodiment of the present application.

[0048] Explanation of reference numerals:

[0049] Bonding mechanism 10; Core combining platform 11; Bottom plate 111; Guide rod 112; Elastic member 113; Stopper 114;

[0050] Alignment member 12; First alignment member 121; Second alignment member 122; Avoidance alignment member 123; Pressing member 13;

[0051] Top cover extraction member 14; Flipping assembly 15; Side plate 151; Rotating shaft 152; Limiting member 153; Positioning member 154;

[0052] First direction a; Second direction b; Third direction c; Electric core 20; First electric core 21; Second electric core 22;

[0053] Top cover 30; Cover plate 31; Side cover 32. Detailed implementation manners

[0054] To make the above objects, features, and advantages of the present application more obvious and understandable, the following detailed description of the specific implementation manners of the present application will be given in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0055] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present application.

[0056] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0057] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0058] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0059] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0060] The combining mechanism 10 provided by the embodiment of the present application is used to combine the first battery cell 21 and the second battery cell 22 with the same appearance to achieve the core combination of the two. Among them, each battery cell 20 has a first end face and a second end face oppositely arranged along the first direction a, and a side face connecting the first end face and the second end face. Core combination means that the first end face of the first battery cell 21 is attached to the first end face of the second battery cell 22, and the side face of the first battery cell 21 is aligned with the side face of the second battery cell 22. Among them, the side faces of each battery cell 20 extend along an extending direction and are connected end to end. The alignment of the side face of the first battery cell 21 and the side face of the second battery cell 22 means that the side face of the first battery cell 21 and the side face of the second battery cell 22 are correspondingly aligned at each place in this extending direction. Among them, the extending direction of the side faces of each battery cell 20 can be circular, square, rectangular or polygonal, etc. It can be understood that the side faces of the battery cell 20 extend from the edges of the first end face of the battery cell 20 to the edges of the second end face of the battery cell 20 to connect the first end face and the second end face.

[0061] Please refer to Figure 1 , Figure 2 and Figure 3 In an embodiment of the present application, a combining mechanism 10 is provided, including a core combining platform 11 and a plurality of regularizing members 12. The core combining platform 11 has a receiving surface for sequentially receiving the first battery cell 21 and the second battery cell 22. The first end face of the first battery cell 21 faces away from the receiving surface, the first end face of the second battery cell 22 faces the receiving surface, the second end face of the first battery cell 21 is supported on the receiving surface, and the first end face of the second battery cell 22 is placed on the first end face of the first battery cell 21. The plurality of regularizing members 12 are arranged around the core combining platform 11. The plurality of regularizing members 12 can position the first battery cell 21 through the side face of the first battery cell 21 and position the second battery cell 22 through the side face of the second battery cell 22, so that the side face of the first battery cell 21 and the side face of the second battery cell 22 are aligned.

[0062] In actual operation of the above-mentioned combining mechanism 10, the first battery cell 21 and the second battery cell 22 are placed one by one on the receiving surface of the cell combining platform 11. When the cell combining platform 11 picks up the first battery cell 21, the first end face of the first battery cell 21 faces away from the receiving surface, and at this time, the second end face of the first battery cell 21 is placed on the receiving surface. When the cell combining platform 11 picks up the second battery cell 22, the first end face of the second battery cell 22 faces the receiving surface, and at this time, the first end face of the second battery cell 22 is placed on the first end face of the first battery cell 21, so that the first end faces of the two battery cells 20 are in contact. After the first battery cell 21 and the second battery cell 22 are in contact, a plurality of aligning members 12 position the first battery cell 21 and the second battery cell 22 to align the side faces of the first battery cell 21 and the second battery cell 22, thereby realizing the cell combination of the two.

[0063] Compared with the prior art, after the first end face of the second battery cell 22 is stacked on the first end face of the first battery cell 21 by the combining mechanism 10, the aligning members 12 are used to position the positions of the first battery cell 21 and the second battery cell 22 after cell combination, which can ensure good alignment of the side faces of the two battery cells after cell combination, and further ensure the cell combination effect.

[0064] Specifically in the embodiment, refer to Figure 1 、 Figure 2 and Figure 3 A plurality of aligning members 12 include two first aligning members 121 and two second aligning members 122. The two first aligning members 121 are arranged on opposite sides of the cell combining platform 11 along the second direction b and are controlled to move closer to or away from each other. The two second aligning members 122 are arranged on opposite sides of the cell combining platform 11 along the third direction c and are controlled to move closer to or away from each other. When the two first aligning members 121 move closer to each other, they can abut against opposite sides of the first battery cell 21 along the second direction b and can also abut against opposite sides of the second battery cell 22 along the second direction b. When the two second aligning members 122 move closer to each other, they can abut against opposite sides of the first battery cell 21 along the third direction c and can also abut against opposite sides of the second battery cell 22 along the third direction c. The first direction a, the second direction b, and the third direction c are perpendicular to each other in pairs.

[0065] In actual operation, after the first battery cell 21 and the second battery cell 22 are in contact, the two first aligning members 121 move closer to each other to simultaneously correct the positions of the two side faces of the first battery cell 21 and the second battery cell 22 in the second direction b, and the two second aligning members 122 move closer to each other to simultaneously correct the positions of the two side faces of the first battery cell 21 and the second battery cell 22 in the third direction c, thereby realizing the position positioning of the two battery cells 20 after contact to ensure a good cell combination effect. At this time, the side faces of the first battery cell 21 and the second battery cell 22 are positioned from four directions, and the positioning effect is good.

[0066] Generally, the extension direction of the side surfaces of the first battery cell 21 and the second battery cell 22 are both rectangular, that is, the first battery cell 21 and the second battery cell 22 are rectangular parallelepiped. Optionally, the second direction b is the short side direction of the first battery cell 21 and the second battery cell 22, the third direction c is the long side direction of the first battery cell 21 and the second battery cell 22, and the first direction a is the thickness direction of the first battery cell 21 and the second battery cell 22.

[0067] Optionally, one of the two first aligning members 121 is fixedly disposed relative to the core-closing platform 11, and the other is movably disposed relative to the core-closing platform 11. Similarly, one of the two second aligning members 122 is fixedly disposed relative to the core-closing platform 11, and the other is movably disposed relative to the core-closing platform 11. Of course, the combination mechanism 10 also includes a driving member (such as a cylinder) for driving the aligning member 12 to move, which will not be described in detail here.

[0068] The regulating member 12 may be a block-shaped, plate-shaped or roller-shaped component.

[0069] In some embodiments, see Figure 4 , Figure 5 and Figure 6 The combination mechanism 10 further includes a top cover extractor 14, which is controlled to move between a first position and a second position. When the top cover extractor 14 is located at the first position, the top cover extractor 14 is used to extract the top cover 30, and when the top cover extractor 14 is located at the second position, the extracted top cover 30 is assembled and connected with the first battery cell 21 and the second battery cell 22.

[0070] In actual operation, the top cover extraction member 14 moves to the first position and extracts the top cover 30. After the first battery cell 21 and the second battery cell 22 are assembled, the top cover extraction member 14 moves to the second position, and the top cover 30 is assembled and connected with the first battery cell 21 and the second battery cell 22. The assembled and connected top cover 30, the first battery cell 21 and the second battery cell 22 are then welded together.

[0071] After the first battery cell 21 and the second battery cell 22 are joined, the joined first battery cell 21 and the second battery cell 22 are positioned by the regulating member 12. At this time, the top cover 30 can be accurately assembled with the joined first battery cell 21 and the second battery cell 22 under the positioning of the regulating member 12. In this way, the combination mechanism 10 can not only achieve joining, but also achieve accurate assembly connection between the joined first battery cell 21 and the second battery cell 22 and the top cover 30.

[0072] Among them, the top cover extraction member 14 can adopt components such as clamping jaws and suction cups that can extract the top cover 30. The combining mechanism 10 further includes a top cover extraction driving member, and the top cover extraction driving member is connected to and drives the top cover extraction member 14 to move towards the core combining platform 11, so that the top cover 30 moves to a position where it is assembled with the first battery cell 21 and the second battery cell 22. The top cover extraction driving member can be a driving component such as a cylinder or an electric cylinder.

[0073] Preferably, the top cover extraction member 14 is controlled to move along the second direction b. When the top cover 30 approaches the core combining platform 11 along the second direction b, one side of the top cover 30 facing the core combining platform 11 can be connected to the same side of the first battery cell 21 and the second battery cell 22. At this time, the top cover extraction member 14 moves in a straight line, and the moving distance is short, which can make the structure of the combining mechanism 10 more compact.

[0074] Among them, each battery cell 20 has a mating surface for mating with the top cover 30, and the mating surface is the side surface of the battery cell 20. After core combining, the mating surfaces of the first battery cell 21 and the second battery cell 22 are located on the same side and are aligned. The assembly connection of the top cover 30 with the first battery cell 21 and the second battery cell 22 means that the mating surface of the top cover 30 is connected to the mating surfaces of the first battery cell 21 and the second battery cell 22. The specific assembly connection method of the top cover 30 with the first battery cell 21 and the second battery cell 22 depends on the specific structures of the battery cell 20 and the top cover 30. The present application does not specifically limit the structures of the top cover 30 and the battery cell 20 adapted to the combining mechanism 10.

[0075] In an example, referring to Figure 11 , the top cover 30 includes a cover plate 31 and two side covers 32 protruding from the same side of the cover plate 31, and the two side covers 32 are arranged opposite to each other along the third direction c. The side covers 32 of the top cover 30 extracted by the top cover extraction member 14 face the core combining platform 11. Both the first battery cell 21 and the second battery cell 22 include a positive electrode tab and a negative electrode tab protruding from the side surface. One of the two side covers 32 is used to connect the positive electrode tabs of the first battery cell 21 and the second battery cell 22, and the other of the two side covers 32 is used to connect the negative electrode tabs of the first battery cell 21 and the second battery cell 22. At this time, the assembly connection of the top cover 30 with the first battery cell 21 and the second battery cell 22 means that one side cover 32 is connected to the two positive electrode tabs, the other side cover 32 is connected to the two negative electrode tabs, and the cover plate 31 is connected to the mating surfaces of the first battery cell 21 and the second battery cell 22.

[0076] Further, both the first battery cell 21 and the second battery cell 22 have a first side face and a second side face opposite to each other along the third direction c. A positive electrode tab is protruded on each first side face, and a negative electrode tab is protruded on each second side face. The mating faces of the first battery cell 21 and the second battery cell 22 are located in the second direction b and face the cover plate 31. After the first battery cell 21 and the second battery cell 22 are combined, the intervals between the two positive electrode tabs and between the two negative electrode tabs form a slot, and the slot extends along the second direction b. In other embodiments, each electrode tab of each battery cell 20 may also be protruded on the mating face, and the specific situation is not limited herein.

[0077] When the top cover 30 is assembled and connected to the first battery cell 21 and the second battery cell 22, the cover plate 31 abuts against the mating faces of the first battery cell 21 and the second battery cell 22, and each side cover 32 is inserted into the corresponding slot. The assembly process is as follows: when the top cover 30 moves to the second position following the top cover extraction member 14, the side covers 32 on both sides of the top cover 30 are gradually inserted into the corresponding slots until the cover plate 31 abuts against the two mating faces.

[0078] Specifically in the embodiment, the top cover extraction member 14 is further configured to be able to move to a third position, and the third position is located between the first position and the second position. After the core combining platform 11 picks up the first battery cell 21, the top cover extraction member 14 moves from the first position to the third position, so that the top cover 30 is pre-assembled and connected to the first battery cell 21. After the core combining platform 11 picks up the second battery cell 22, the top cover extraction member 14 moves from the third position to the second position, so that the top cover 30 is assembled and connected to the first battery cell 21 and the second battery cell 22.

[0079] During actual operation, referring to Figure 11 , the working process of the combining mechanism 10 is as follows: First, the core combining platform 11 picks up the first battery cell 21, and the aligning member 12 positions the first battery cell 21. Then, the top cover extraction member 14 moves from the first position to the third position, so that the extracted top cover 30 is pre-assembled and connected to the first battery cell 21. Then, the core combining platform 11 picks up the second battery cell 22, and the aligning member 12 positions the first battery cell 21 and the second battery cell 22 uniformly. Finally, the top cover extraction member 14 moves from the third position to the second position, so that the top cover 30 is assembled and connected to the first battery cell 21 and the second battery cell 22.

[0080] At this time, the top cover 30 is assembled in place in two steps. Compared with being assembled in place in one step, it can prevent the two electrode tabs on the same side provided on the first battery cell 21 and the second battery cell 22 from interfering with the entry of the side cover 32 into the slot due to being close to each other, and can also reduce the mutual wear between the top cover 30 and the first battery cell 21 and the second battery cell 22 during the assembly process.

[0081] In one example, when the top cover 30 is pre - installed and connected to the first battery cell 21, a part of each side cover 32 is respectively connected to the positive electrode tab and the negative electrode tab of the first battery cell 21, and there is a gap between the cover plate 31 of the top cover 30 and the mating surface of the first battery cell 21. Among them, the specific pre - installation connection method between the top cover 30 and the first battery cell 21 depends on the specific structures of the battery cell 20 and the top cover 30. The present application does not specifically limit the structures of the top cover 30 and the battery cell 20 adapted to the combining mechanism 10.

[0082] Specifically in the embodiment, refer to Figure 1 、 Figure 2 and Figure 3 , at least one of the plurality of regularizing members 12 is an avoidance regularizing member 123. The avoidance regularizing member 123 and the top - cover extraction member 14 located at the second position are arranged on the same side of the core - combining platform 11. The avoidance regularizing member 123 is configured to be able to approach or move away from the core - combining platform 11 along the first direction a. When the top - cover extraction member 14 moves towards the second position, the avoidance regularizing member 123 moves away from the core - combining platform 11 along the first direction a to avoid the top cover 30.

[0083] During actual operation, when the top - cover extraction member 14 extracts the top cover 30 and moves towards the second position, the top - cover extraction member 14 moves in a plane perpendicular to the first direction a. At this time, the avoidance regularizing member 123 moves along the first direction a to move away from the core - combining platform 11 before the top - cover extraction member 14 reaches the second position. The avoidance regularizing member 123 will not interfere with the top cover 30, so that the mating surfaces of the top cover 30 and each battery cell 20 can be smoothly connected.

[0084] It can be understood that the avoidance regularizing member 123 positions the mating surfaces of the first battery cell 21 and the second battery cell 22 during actual operation. After the avoidance regularizing member 123 avoids the top cover 30, the top cover 30 is used to replace the avoidance regularizing member 123 to position the mating surfaces of the first battery cell 21 and the second battery cell 22.

[0085] Optionally, the avoidance regularizing member 123 is connected to a first avoidance driving member and a second avoidance driving member. The first avoidance driving member is used to drive the avoidance regularizing member 123 to move along the first direction a to avoid the top cover 30. The second avoidance driving member is used to drive the avoidance regularizing member 123 to move along the second direction b to abut against the mating surfaces of the first battery cell 21 and the second battery cell 22 to achieve the positioning of the mating surfaces. Among them, both the first avoidance driving member and the second avoidance driving member can be driving components such as air cylinders and electric cylinders, and specific limitations are not made.

[0086] In some embodiments, refer to Figure 7 and Figure 8, the combining mechanism 10 further includes a pressing member 13 which is configured to approach or move away from the core - combining platform 11 along the first direction a. When the pressing member 13 approaches the core - combining platform 11, it can abut against the second end face of the second battery cell 22 and press the first battery cell 21 and the second battery cell 22 tightly.

[0087] During actual operation, after the first battery cell 21 and the second battery cell 22 are core - combined, the pressing member 13 approaches the core - combining platform 11 and abuts against the second battery cell 22, so that the first end face of the second battery cell 22 and the second end face of the second battery cell 22 can be tightly attached, which is convenient for maintaining the stability of the first battery cell 21 and the second battery cell 22 in the core - combined state, and is also convenient for the top cover 30 to be assembled in place with the first battery cell 21 and the second battery cell 22.

[0088] Wherein, the pressing member 13 can be a block - shaped member, a plate - shaped member, a roller, etc. It can be understood that the combining mechanism 10 further includes a pressing driving member which is connected to and drives the pressing member 13 to move. The pressing driving member can be a driving member such as an electric cylinder or a cylinder, and is not limited herein.

[0089] Specifically in the embodiment, the combining mechanism 10 further includes a bottom plate 111, and the core - combining platform 11 is elastically connected to the bottom plate 111 along the first direction a. During actual operation, when the pressing member 13 presses the second battery cell 22, the core - combining platform 11 can play a buffering role to prevent the pressing member 13 from rigidly contacting the second battery cell 22 and damaging the second battery cell 22.

[0090] Preferably, the combining mechanism 10 further includes a guide rod 112, an elastic member 113 and a stopper 114. A through - hole is formed in the bottom plate 111, and the guide rod 112 passes through the through - hole and can move along the through - hole. One end of the guide rod 112 is connected to the core - combining platform 11, the other end of the guide rod 112 is connected to the stopper 114, the elastic member 113 is sleeved on the guide rod 112, and is connected to the stopper 114 and the bottom plate 111. The elastic member 113 is used to provide a force for moving the core - combining platform 11 away from the bottom plate 111.

[0091] At this time, when the pressing member 13 presses the second battery cell 22, the core - combining platform 11 moves towards the bottom plate 111 and drives the guide rod 112 to move along the through - hole, so that the stopper 114 moves away from the bottom plate 111 and the elastic member 113 is stretched. When the pressing member 13 withdraws from the second battery cell 22, the elastic member 113 recovers and pulls the stopper 114 close to the bottom plate 111, driving the core - combining platform 11 away from the bottom plate 111, so that the core - combining platform 11 returns to its initial position. At the same time, the force generated after the elastic member 113 is stretched can press the second battery cell 22 against the pressing member 13.

[0092] Specifically in the embodiments, the combining mechanism 10 further includes a platform driving member, which is connected to the core combining platform 11 and is used to drive the core combining platform 11 to move between the initial position and the blanking position. When core combining is required, the platform driving member drives the core combining platform 11 to move to the initial position. When blanking can be performed after core combining is completed, first, the material taking mechanism picks up the assembled component formed by the assembly connection of the first battery cell 21, the second battery cell 22 and the top cover 30 on the core combining platform 11, and the platform driving member drives the core combining platform 11 to move to the blanking position. At this time, the core combining platform 11 is far away from the assembled component, which is convenient for the material taking mechanism to pick up the material.

[0093] Furthermore, the platform driving member drives the core combining platform 11 to move along the first direction a, and the core combining platform 11 located at the blanking position is farther away from the pressing member 13 than the core combining platform 11 located at the initial position. In this way, the overall structure of the machine is compact.

[0094] Among them, the platform driving member can be a cylinder or an electric cylinder.

[0095] It should be noted that when the core combining platform 11 is elastically connected to the bottom plate 111, the driving end of the platform driving member can retract a certain distance as the core combining platform 11 moves and is not rigidly connected to the core combining platform 11. For example, when the platform driving member is a cylinder, the piston rod connecting the core combining platform 11 can retract a certain distance when the pressing member 13 applies pressure to the core combining platform 11.

[0096] Preferably, an inward concave groove is provided on the receiving surface of the core combining platform 11, and the groove penetrates the side surface of the core combining platform 11. The setting of the groove is convenient for the material taking mechanism to pick up the material.

[0097] In some embodiments, referring to Figure 9 and Figure 10 , the combining mechanism 10 further includes a flipping assembly 15. The flipping assembly 15 is connected to the core combining platform 11 and is configured to be able to drive the core combining platform 11 to rotate around a rotating shaft 152 parallel to the third direction c. The core combining platform 11 can move between the fourth position and the fifth position when rotating. When the core combining platform 11 is located at the fourth position, it is used to pick up the first battery cell 21 and the second battery cell 22 so that the first battery cell 21 and the second battery cell 22 are combined. When the core combining platform 11 is located at the fifth position, it is used to supply the combined first battery cell 21 and second battery cell 22 for blanking. The third direction c is perpendicular to the first direction a.

[0098] During actual operation, when the core assembly platform 11 rotates to the fourth position, it is used for feeding and combining the battery cells 20. When the core assembly platform 11 rotates to the fifth position, it is used for discharging. In this way, the handling mechanism for transporting the first battery cell 21 and the second battery cell 22 to the core assembly platform 11 and the picking mechanism for picking up the assembled components after core assembly can be arranged at different positions, and the movement paths of the two do not interfere with each other, thus facilitating the picking mechanism to pick up the components and send the assembled components to the downstream equipment.

[0099] Preferably, the core assembly platform 11 located at the fourth position rotates 90 degrees and then switches to the fifth position.

[0100] Specifically in the embodiment, the flipping assembly 15 includes two side plates 151 and a rotating shaft 152. The core assembly platform 11 is connected to the side plates 151 through the rotating shaft 152, and the core assembly platform 11 is located between the two side plates 151.

[0101] Furthermore, the flipping assembly 15 further includes a blocking member 154 and two limiting members 153. The blocking member 154 is fixedly arranged relative to the core assembly platform 11, and the two limiting members 153 are fixed at two positions on the side plates 151. When the blocking member 154 abuts against one of the limiting members 153, the core assembly platform 11 rotates to the fourth position. When the blocking member 154 abuts against the other of the limiting members 153, the core assembly platform 11 rotates to the fifth position.

[0102] During actual operation, when the core assembly platform 11 moves to each extreme position, the blocking member 154 can abut against the limiting member 153 to limit the continuous rotation of the core assembly platform 11, indicating that the core assembly platform 11 has rotated in place. In this way, over-rotation of the core assembly platform 11 can be prevented, and the position accuracy of the core assembly platform 11 can be improved.

[0103] Preferably, the two limiting members 153 are arranged at intervals along the circumference on the rotating shaft 152, and the blocking member 154 is arranged on the side plate 151. The blocking member 154 can be a bolt, and the limiting member 153 is a limiting block.

[0104] For the combining mechanism 10 provided in the embodiment of the present application, after the first end face of the second battery cell 22 on the core assembly platform 11 is stacked on the first end face of the first battery cell 21, the positioning member 12 is used to position the positions of the first battery cell 21 and the second battery cell 22 after core assembly, which can ensure good alignment of the side faces of the two battery cells after core assembly, and further ensure the core assembly effect.

[0105] In addition, an embodiment of the present application further provides a core assembly device, including a handling mechanism and the combining mechanism 10 provided in any of the above embodiments. The handling mechanism is used to transport the first battery cell 21 and the second battery cell 22 to the core assembly platform 11. Since this core assembly device includes the above core assembly platform 11, it has all the beneficial effects in the above embodiments and will not be elaborated here.

[0106] Among them, the handling mechanism can be a manipulator or the like, which is not limited herein. The handling process of the handling mechanism is to first handle the first battery cell 21 to the receiving surface, and then handle the second battery cell 22 onto the first battery cell 21.

[0107] In addition, referring to Figure 12 , an embodiment of the present application further provides a battery cell combining method, including:

[0108] S1. Pick up the first battery cell 21, with the first end face of the first battery cell 21 facing away from the receiving surface of the combining platform 11, place the second end face of the first battery cell 21 on the receiving surface, and the first end face and the second end face are arranged opposite to each other along the first direction a;

[0109] S2. Pick up the second battery cell 22, with the first end face of the second battery cell 22 facing the receiving surface, and place the first end face of the second battery cell 22 on the first end face of the first battery cell 21;

[0110] S3. Abut a plurality of aligning members 12 against the side surface of the first battery cell 21 to position the first battery cell 21, and abut against the side surface of the second battery cell 22 to position the second battery cell 22, so that the side surfaces of the first battery cell 21 and the second battery cell 22 are aligned. The plurality of aligning members 12 are arranged around the combining platform 11, and the side surface connects the first end face and the second end face.

[0111] In the battery cell combining method provided in this embodiment, the execution main body is the combining mechanism 10. The combining mechanism 10 includes a combining platform 11 and a plurality of aligning members 12, and the plurality of aligning members 12 are arranged around the combining platform 11. The combining process of the combining mechanism 10 is as follows: The combining platform 11 first picks up the first battery cell 21, the first end face of the first battery cell 21 faces away from the receiving surface of the combining platform 11, and the second end face of the first battery cell 21 is placed on the receiving surface. The combining platform 11 then picks up the second battery cell 22, and the first end face of the second battery cell 22 faces the receiving surface, and the first end face of the second battery cell 22 is placed on the first end face of the first battery cell 21. Finally, a plurality of aligning members 12 abut against the side surfaces of the first battery cell 21 and the second battery cell 22 to position the first battery cell 21 and the second battery cell 22, so that the side surfaces of the first battery cell 21 and the second battery cell 22 are aligned.

[0112] At this time, after the first end face of the second battery cell 22 is stacked on the first end face of the first battery cell 21, using the aligning members 12 to position the positions of the combined first battery cell 21 and second battery cell 22 can ensure good alignment of the side surfaces of the two battery cells after combination, and thus ensure the combination effect.

[0113] In one embodiment, after step S3 of abutting a plurality of aligning members 12 against the side surface of the first battery cell 21 to position the first battery cell 21, and abutting against the side surface of the second battery cell 22 to position the second battery cell 22, so that the side surfaces of the first battery cell 21 and the second battery cell 22 are aligned, it further includes:

[0114] S4. Move the lid extractor 14 with the lid 30 extracted to the second position so that the lid 30 is assembled and connected to the first battery cell 21 and the second battery cell 22.

[0115] In this embodiment, the combining mechanism 10 further includes a lid extractor 14 for extracting the lid 30, and the lid extractor 14 is controlled to move between a first position and a second position. When the lid extractor 14 is in the first position, it is used to extract the lid 30. When the lid extractor 14 is in the second position, the extracted lid 30 is assembled and connected to the first battery cell 21 and the second battery cell 22 after the cores are combined. After step S3 is executed, it indicates that the first battery cell 21 and the second battery cell 22 have been combined. At this time, drive the extractor with the lid 30 extracted to move to the second position so that the lid 30 is assembled and connected to the first battery cell 21 and the second battery cell 22 after the cores are combined.

[0116] After the first battery cell 21 and the second battery cell 22 are combined, the combined first battery cell 21 and second battery cell 22 are in a state of being positioned by the positioning member 12. At this time, under the positioning of the positioning member 12, the lid 30 can be accurately assembled with the combined first battery cell 21 and second battery cell 22. In this way, not only can the core combination be realized, but also the accurate assembly connection between the first battery cell 21 and the second battery cell 22 and the lid 30 after the core combination can be realized.

[0117] It can be understood that before the step of moving the lid extractor 14 with the lid 30 extracted to the second position, it further includes moving the lid extractor 14 to the first position to extract the lid 30.

[0118] Among them, each battery cell 20 has a mating surface for mating with the lid 30, and the mating surface is the side surface of the battery cell 20. The mating surfaces of the first battery cell 21 and the second battery cell 22 after the cores are combined are located on the same side and aligned. The assembly connection between the lid 30 and the first battery cell 21 and the second battery cell 22 means that the lid 30 is connected to the mating surface of the first battery cell 21 and the mating surface of the second battery cell 22. The specific assembly connection manner between the lid 30 and the first battery cell 21 and the second battery cell 22 is determined according to the specific structures of the battery cell 20 and the lid 30. The present application does not specifically limit the structures of the lid 30 and the battery cell 20 adapted to the combining mechanism 10.

[0119] In one example, the top cover 30 includes a cover plate 31 and two side covers 32 protruding from the same side of the cover plate 31, and the two side covers 32 are arranged opposite to each other along the third direction c. The side cover 32 of the top cover 30 extracted by the top cover extractor 14 faces the core combining platform 11. Both the first battery cell 21 and the second battery cell 22 include a positive electrode tab and a negative electrode tab protruding from the side surface. One of the two side covers 32 is used to connect the positive electrode tabs of the first battery cell 21 and the second battery cell 22, and the other of the two side covers 32 is used to connect the negative electrode tabs of the first battery cell 21 and the second battery cell 22. At this time, the assembly connection of the top cover 30 with the first battery cell 21 and the second battery cell 22 means that one side cover 32 is connected to the two positive electrode tabs, the other side cover 32 is connected to the two negative electrode tabs, and the cover plate 31 is connected to the mating surfaces of the first battery cell 21 and the second battery cell 22.

[0120] Furthermore, both the first battery cell 21 and the second battery cell 22 have a first side surface and a second side surface opposite to each other along the third direction c. A positive electrode tab protrudes from each first side surface, and a negative electrode tab protrudes from each second side surface. The mating surfaces of the first battery cell 21 and the second battery cell 22 are located in the second direction b and face the cover plate 31. After the first battery cell 21 and the second battery cell 22 are combined, the intervals between the two positive electrode tabs and between the two negative electrode tabs form slots, and the slots extend along the second direction b. In other embodiments, each electrode tab of each battery cell 20 may also protrude on the mating surface, which is not specifically limited herein.

[0121] When the top cover 30 is assembled and connected to the first battery cell 21 and the second battery cell 22, the cover plate 31 abuts against the mating surfaces of the first battery cell 21 and the second battery cell 22, and each side cover 32 is inserted into the corresponding slot. The assembly process is as follows: when the top cover 30 moves with the top cover extractor 14 to the second position, the side covers 32 on both sides of the top cover 30 are gradually inserted into the corresponding slots until the cover plate 31 abuts against the two mating surfaces.

[0122] Specifically in the embodiment, after the step S1 of placing the second end face of the first battery cell 21 on the receiving surface, it further includes:

[0123] S11. Switch a plurality of aligning members 12 to the positioning state to position the first battery cell 21. The plurality of aligning members 12 in the positioning state abut against the side surface of the first battery cell 21 located on the core combining platform 11;

[0124] S12. Switch the plurality of aligning members 12 to the non - positioning state to release the first battery cell 21. The plurality of aligning members 12 in the non - positioning state are at least away from the intersecting sides of the side surface of the first battery cell 21 located on the core combining platform 11;

[0125] Accordingly, the step S3 of abutting a plurality of alignment members 12 against the side surface of the first battery cell 21 to position the first battery cell 21 and abutting the side surface of the second battery cell 22 to position the second battery cell 22 so that the side surfaces of the first battery cell 21 and the second battery cell 22 are aligned includes:

[0126] S31. Switch the plurality of alignment members 12 to the positioning state, and the plurality of alignment members 12 in the positioning state abut against the side surfaces of the first battery cell 21 and the second battery cell 22 so that the side surfaces of the first battery cell 21 and the second battery cell 22 are aligned.

[0127] In this embodiment, the plurality of alignment members 12 can be switched between the positioning state and the non-positioning state. When the plurality of alignment members 12 are in the positioning state, the plurality of alignment members 12 can position the side surface of the first battery cell 21 located on the core combining platform 11 and the side surface of the second battery cell 22 located on the core combining platform 11. When the plurality of alignment members 12 are in the non-positioning state, the plurality of alignment members 12 can release the first battery cell 21 located on the core combining platform 11 and the second battery cell 22 located on the core combining platform 11.

[0128] After the core combining platform 11 picks up the first battery cell 21, the plurality of alignment members 12 are switched to the positioning state to position the first battery cell 21. Then, the plurality of alignment members 12 are switched to the non-positioning state to release the first battery cell 21, facilitating the subsequent placement of the second battery cell 22. Then, the core combining platform 11 picks up the second battery cell 22, and the second battery cell 22 is placed on the first battery cell 21. Finally, the plurality of alignment members 12 are switched to the positioning state to uniformly position the first battery cell 21 and the second battery cell 22.

[0129] At this time, positioning the first battery cell 21 after picking up the first battery cell 21 helps to speed up the subsequent uniform positioning.

[0130] Specifically in the embodiment, after the step S11 of switching the plurality of alignment members 12 to the positioning state to position the first battery cell 21, it further includes:

[0131] S111. Move the top cover extraction member 14 extracting the top cover 30 to the third position so that the top cover 30 is pre-assembled and connected to the first battery cell 21, and the third position is farther from the core combining platform 11 than the second position;

[0132] Accordingly, the step S4 of moving the top cover extraction member 14 extracting the top cover 30 along the second direction b to the second position so that the top cover 30 is assembled and connected to the first battery cell 21 and the second battery cell 22 includes:

[0133] S41. Move the top cover extraction member 14 from the third position to the second position so that the top cover 30 is assembled and connected to the first battery cell 21 and the second battery cell 22.

[0134] In this embodiment, the top cover extractor 14 is further configured to be movable to a third position, which is located between the first position and the second position. After the core combining platform 11 picks up the first battery cell 21, the top cover extractor 14 moves from the first position to the third position, so that the top cover 30 is pre-assembled and connected to the first battery cell 21. After the core combining platform 11 picks up the second battery cell 22, the top cover extractor 14 moves from the third position to the second position, so that the top cover 30 is assembled and connected to the first battery cell 21 and the second battery cell 22.

[0135] Before the core combining platform 11 picks up the battery cell 20, the plurality of alignment members 12 are in a non-positioning state. When the core combining platform 11 picks up the first battery cell 21, the plurality of alignment members 12 are switched from the non-positioning state to the positioning state, and the first battery cell 21 is positioned. Then, the plurality of alignment members 12 are switched from the positioning state to the non-positioning state to release the first battery cell 21. Thereafter, the top cover extractor 14 is moved from the first position to the third position, and the top cover 30 is pre-assembled and connected to the first battery cell 21. Then, the core combining platform 11 picks up the second battery cell 22 and places the second battery cell 22 on the first battery cell 21. Immediately afterwards, the plurality of alignment members 12 are switched from the non-positioning state to the positioning state to position the first battery cell 21 and the second battery cell 22. Finally, the top cover extractor 14 moves from the third position to the second position, and the top cover 30 is assembled and connected to the first battery cell 21 and the second battery cell 22 in place.

[0136] At this time, the top cover 30 is assembled in place in two steps. Compared with being assembled in one step, it can prevent the two pole ears provided on the same side of the first battery cell 21 and the second battery cell 22 from interfering with the side cover 32 entering the slot due to being close to each other, and can also reduce the mutual wear between the top cover 30 and the first battery cell 21 and the second battery cell 22 during the assembly process.

[0137] In one example, when the top cover 30 is pre-assembled and connected to the first battery cell 21, a part of each side cover 32 is respectively connected to the positive pole ear and the negative pole ear of the first battery cell 21, and there is a gap between the cover plate 31 of the top cover 30 and the mating surface of the first battery cell 21. Among them, the specific pre-assembly connection method of the top cover 30 and the first battery cell 21 is determined according to the specific structure of the battery cell 20 and the specific structure of the top cover 30. The present application does not specifically limit the structures of the top cover 30 and the battery cell 20 adapted to the combining mechanism 10.

[0138] It can be understood that before the step of moving the top cover extractor 14 extracting the top cover 30 to the third position, it further includes: moving the top cover extractor 14 to the first position and extracting the top cover 30. On the moving path of the top cover extractor 14, the third position is located between the first position and the second position. In this way, the top cover extractor 14 can extract the top cover 30.

[0139] Specifically in the embodiment, between step S3 and step S4, it further includes:

[0140] S5. Move the avoidance and alignment member 123 away from the core combining platform 11.

[0141] In this embodiment, at least one of the plurality of alignment members 12 is an avoidance and alignment member 123. The avoidance and alignment member 123 and the top cover extraction member 14 located at the second position are arranged on the same side of the core combining platform 11. The avoidance and alignment member 123 is configured to be able to approach or move away from the core combining platform 11 along the first direction a. When the top cover extraction member 14 moves towards the second position, the avoidance and alignment member 123 moves away from the core combining platform 11 along the first direction a to avoid the top cover 30.

[0142] During actual operation, when the top cover extraction member 14 extracts the top cover 30 and moves towards the second position, the top cover extraction member 14 moves in a plane perpendicular to the first direction a. At this time, the avoidance and alignment member 123 moves along the first direction a to be away from the core combining platform 11 before the top cover extraction member 14 reaches the second position. The avoidance and alignment member 123 will not interfere with the top cover 30, enabling the mating surfaces of the top cover 30 and each battery cell 20 to be smoothly connected.

[0143] It can be understood that the avoidance and alignment member 123 positions the mating surfaces of the first battery cell 21 and the second battery cell 22 during actual operation. After the avoidance and alignment member 123 avoids the top cover 30, the top cover 30 is used to replace the avoidance and alignment member 123 to position the mating surfaces of the first battery cell 21 and the second battery cell 22.

[0144] Specifically in the embodiment, after step S4, it further includes:

[0145] S6. Control the pressing member 13 to press the second battery cell 22.

[0146] In this embodiment, the combining mechanism 10 further includes a pressing member 13. The pressing member 13 is configured to approach or move away from the core combining platform 11 along the first direction a. When the pressing member 13 approaches the core combining platform 11, it can abut against the second end face of the second battery cell 22 and press the first battery cell 21 and the second battery cell 22 tightly.

[0147] During actual operation, after the first battery cell 21 and the second battery cell 22 are combined, the pressing member 13 approaches the core combining platform 11 and presses against the second battery cell 22, so that the first end face of the second battery cell 22 and the first end face of the second battery cell 22 can be tightly attached, facilitating maintaining the stability of the first battery cell 21 and the second battery cell 22 in the combined state, and also facilitating the top cover 30 to be assembled in place with the combined first battery cell 21 and second battery cell 22.

[0148] In the core combining method provided by the embodiment of the present application, after stacking the first end face of the second battery cell 22 on the first end face of the first battery cell 21, the positioning member 12 is used to position the positions of the first battery cell 21 and the second battery cell 22, which can ensure good alignment of the side faces of the two battery cells after core combining, and thus ensure the core combining effect.

[0149] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0150] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A combining mechanism for combining a battery cell (20), the battery cell (20) having a first end face and a second end face oppositely arranged along a first direction (a) and a side face connecting the first end face and the second end face, characterized in that, The combining mechanism includes: A core combining platform (11) having a receiving surface for successively receiving a first battery cell (21) and a second battery cell (22), wherein a first end surface of the first battery cell (21) faces away from the receiving surface, a first end surface of the second battery cell (22) faces the receiving surface, a second end surface of the first battery cell (21) is supported on the receiving surface, and the first end surface of the second battery cell (22) is placed on the first end surface of the first battery cell (21); and A plurality of alignment members (12) arranged around the core combining platform (11), the plurality of alignment members (12) being capable of positioning the first battery cell (21) through a side surface of the first battery cell (21) and positioning the second battery cell (22) through a side surface of the second battery cell (22) so that the side surfaces of the first battery cell (21) and the second battery cell (22) are aligned; Wherein, the plurality of alignment members (12) includes two first alignment members (121) and two second alignment members (122), the two first alignment members (121) are arranged on opposite sides of the core combining platform (11) along a second direction b and are controlled to move closer to or away from each other, the two second alignment members (122) are arranged on opposite sides of the core combining platform (11) along a third direction c and are controlled to move closer to or away from each other, and the first direction a, the second direction b, and the third direction c are perpendicular to each other in pairs.

2. The coupling mechanism according to claim 1, characterized in that It further includes a top cover extraction member (14), and the top cover extraction member (14) is controlled to move between a first position and a second position; When the top cover extraction member (14) is located at the first position, the top cover extraction member (14) is used to extract a top cover (30), and when the top cover extraction member (14) is located at the second position, the extracted top cover (30) is assembled and connected to the first battery cell (21) and the second battery cell (22).

3. The coupling mechanism according to claim 2, wherein The top cover extraction member (14) is further configured to be able to move to a third position, and the third position is located between the first position and the second position; After the core combining platform (11) picks up the first battery cell (21), the top cover extraction member (14) moves from the first position to the third position so that the top cover (30) is pre-assembled and connected to the first battery cell (21); After the core combining platform (11) picks up the second battery cell (22), the top cover extraction member (14) moves from the third position to the second position so that the top cover (30) is assembled and connected to the first battery cell (21) and the second battery cell (22).

4. The combination mechanism according to claim 2, wherein At least one of the plurality of alignment members (12) is an avoidance alignment member (123), the avoidance alignment member (123) and the top cover extraction member (14) located at the second position are arranged on the same side of the core combining platform (11), and the avoidance alignment member (123) is configured to be able to move closer to or away from the core combining platform (11) along the first direction (a); When the top cover extraction member (14) moves towards the second position, the avoidance and alignment member (123) moves away from the core combining platform (11) along the first direction (a) to avoid the top cover (30).

5. The coupling mechanism according to claim 1, characterized in that, It further includes a pressing member (13), and the pressing member (13) is configured to move closer to or away from the core combining platform (11) along the first direction (a); When the pressing member (13) moves closer to the core combining platform (11), it can abut against the second end face of the second battery cell (22) and press the first battery cell (21) and the second battery cell (22) tightly.

6. The coupling mechanism according to claim 5, wherein, It further includes a bottom plate (111), and the core combining platform (11) is elastically connected to the bottom plate (111) along the first direction (a).

7. The engaging mechanism according to claim 1, characterized in that, It further includes a flipping assembly (15), the flipping assembly (15) is connected to the core combining platform (11), and is configured to be able to drive the core combining platform (11) to rotate around a rotating shaft parallel to the third direction (c), and the core combining platform (11) can move between a fourth position and a fifth position when rotating; When the core combining platform (11) is located at the fourth position, it is used to pick up the first battery cell (21) and the second battery cell (22) so that the first battery cell (21) and the second battery cell (22) are combined, and when the core combining platform (11) is located at the fifth position, it is used to discharge the combined first battery cell (21) and second battery cell (22). The third direction (c) is perpendicular to the first direction (a).

8. A core combining device, characterized in that, It includes a handling mechanism and the combining mechanism (10) according to any one of claims 1 to 7, and the handling mechanism is used to transport the first battery cell (21) and the second battery cell (22) to the core combining platform (11).

9. A core combining method, characterized in that, It includes: Pick up the first battery cell (21), the first end face of the first battery cell (21) faces away from the receiving surface of the core combining platform (11), place the second end face of the first battery cell (21) on the receiving surface, and the first end face and the second end face are arranged opposite to each other along the first direction (a); Pick up the second battery cell (22), the first end face of the second battery cell (22) faces the receiving surface, and place the first end face of the second battery cell (22) on the first end face of the first battery cell (21); Abut a plurality of alignment members (12) against the side surface of the first battery cell (21) to position the first battery cell (21), and abut against the side surface of the second battery cell (22) to position the second battery cell (22), so that the side surfaces of the first battery cell (21) and the second battery cell (22) are aligned. The plurality of alignment members (12) are arranged around the core combining platform (11), and the side surface connects the first end face and the second end face. Among them, the multiple alignment members (12) include two first alignment members (121) and two second alignment members (122). The two first alignment members (121) are arranged on opposite sides of the core combining platform (11) along the second direction b, and are controlled to approach or move away from each other. The two second alignment members (122) are arranged on opposite sides of the core combining platform (11) along the third direction c, and are controlled to approach or move away from each other. The first direction a, the second direction b, and the third direction c are perpendicular to each other in pairs.

10. The core-combining method according to claim 9, wherein, After the step of abutting the multiple alignment members (12) against the side surfaces of the first battery cell (21) to position the first battery cell (21) and abutting the side surfaces of the second battery cell (22) to position the second battery cell (22) so that the side surfaces of the first battery cell (21) and the second battery cell (22) are aligned, it further includes: Moving the top cover extraction member (14) extracting the top cover (30) to a second position so that the top cover (30) is assembled and connected to the first battery cell (21) and the second battery cell (22).

11. The core combining method according to claim 10, wherein After the step of placing the second end face of the first battery cell (21) on the receiving surface, it further includes: Switching the multiple alignment members (12) to a positioning state to position the first battery cell (21). The multiple alignment members (12) in the positioning state abut against the side surface of the first battery cell (21) located on the core combining platform (11). Switching the multiple alignment members (12) to a non-positioning state to release the first battery cell (21). The multiple alignment members (12) in the non-positioning state are at least away from the intersecting sides of the side surface of the first battery cell (21) located on the core combining platform (11). Correspondingly, the step of abutting the multiple alignment members (12) against the side surface of the first battery cell (21) to position the first battery cell (21) and abutting the side surface of the second battery cell (22) to position the second battery cell (22) so that the side surfaces of the first battery cell (21) and the second battery cell (22) are aligned includes: Switching the multiple alignment members (12) to a positioning state. The multiple alignment members (12) in the positioning state abut against the side surface of the first battery cell (21) and the side surface of the second battery cell (22) so that the side surfaces of the first battery cell (21) and the second battery cell (22) are aligned.

12. The core-combining method according to claim 11, wherein After the step of switching the multiple alignment members (12) to a positioning state to position the first battery cell (21), it further includes: Moving the top cover extraction member (14) extracting the top cover (30) to a third position so that the top cover (30) is pre-assembled and connected to the first battery cell (21). The third position is farther from the core combining platform (11) than the second position. Correspondingly, the step of moving the top cover extraction member (14) extracting the top cover (30) to a second position so that the top cover (30) is assembled and connected to the first battery cell (21) and the second battery cell (22) includes: Move the top cover extraction member (14) from the third position to the second position so that the top cover (30) is assembled and connected to the first battery cell (21) and the second battery cell (22).

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