Battery cell shell entering method and battery cell shell entering equipment

Abstract

The invention belongs to the technical field of batteries, and discloses a battery cell shell entering method and battery cell shell entering equipment. The method comprises the following steps: firstly, placing a battery shell on a first bearing mechanism, so that a first opening and a second opening of the battery shell are opposite to each other along a first direction, and then, enabling a clamping device of a traction mechanism to enter the battery shell from the first opening; when the traction part is right opposite to the second opening and the battery cell and the battery shell move relatively until the traction part is in contact with the clamping device, the clamping device clamps and fixes the traction part, the traction mechanism pulls the battery cell to move in the first direction, so that the traction part is close to the first opening, the battery cell is put into the shell, and the battery cell and the battery shell are assembled. According to the method for assembling the battery cell into the shell, the problem that the battery cell is difficult to assemble into the shell is solved on the basis of not influencing the energy density of the battery.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a method and equipment for inserting a battery cell into a shell. Background Art

[0002] The cell shelling process refers to the process of placing the cell into the battery steel shell. The current blade battery has the problem of difficulty in shelling, and the reasons for the difficulty are as follows: 1. Since the length and width of the battery shell are slightly smaller than the length and width of the cell, and the edge of the opening of the battery shell is sharp, when the end of the cell needs to enter the opening of the battery shell, once the end of the cell and the opening of the battery shell are slightly misaligned, the edge of the battery shell will cut the cell; 2. Since the blade battery itself is made longer, it is easy to cause the cell to deform when it is directly acted on the cell and pushed into the battery shell for a long time; 3. Due to the requirements of energy density, the blade battery itself is made longer, so it is slow to enter the shell and the production efficiency is low.

[0003] Therefore, there is an urgent need to provide a new battery cell shelling method and battery cell shelling equipment to solve the above technical problems in the prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a method and device for inserting a battery cell into a shell, which solves the problem of difficulty in inserting a battery cell into a shell without affecting the energy density of the battery itself.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] The battery shell in the battery cell shelling method includes a first opening and a second opening arranged opposite to each other along a first direction, the battery cell assembly is coated with an insulating film, and at least one side of the insulating film in the first direction is connected to a traction part; the battery cell shelling method specifically includes the steps of: arranging the battery shell on a first supporting mechanism, and arranging the first opening and the second opening of the battery shell opposite to each other along the first direction; arranging the battery cell assembly on a second supporting mechanism, and making the traction part face the second opening of the battery shell; controlling the relative movement of the clamping device of the traction mechanism and the battery shell, so that the clamping device of the traction mechanism enters the battery shell from the first opening of the battery shell; controlling the relative movement of the clamping device of the traction mechanism and the battery cell assembly in the first direction until the traction part is at the clamping device of the traction mechanism; controlling the clamping device of the traction mechanism to clamp the traction part; S4, controlling the clamping device of the traction mechanism and the battery cell assembly to move together in the first direction close to the first opening, so that the battery cell assembly enters the battery shell.

[0007] Optionally, controlling the relative movement between the clamping device of the traction mechanism and the battery housing includes: limiting the movement of the battery housing by the first bearing mechanism, controlling the clamping device of the traction mechanism and the first opening of the battery housing to be arranged opposite each other, and controlling the clamping device of the traction mechanism to move toward a direction close to the second opening of the battery housing.

[0008] Optionally, controlling the clamping device of the traction mechanism and the battery cell assembly to move relative to each other in the first direction until the traction portion is at the clamping device of the traction mechanism comprises the steps of: controlling the second bearing mechanism to drive the battery cell assembly to move in the first direction along a direction close to the second opening until the traction portion at least partially extends into the second opening of the battery casing; controlling the clamping device of the traction mechanism to move in the first direction along a direction away from the first opening until the clamping device of the traction mechanism is at the traction portion.

[0009] Optionally, in step S2, the clamping device of the traction mechanism is controlled to move together with the battery cell assembly in the first direction close to the first opening, including: controlling the second supporting mechanism to drive the battery cell assembly to move in the first direction close to the first opening, and controlling the clamping device of the traction mechanism to drive the battery cell assembly to move in the first direction close to the first opening.

[0010] Optionally, the method further comprises the step of pre-bending the traction portion before the clamping device of the traction mechanism clamps the traction portion.

[0011] Optionally, the method further includes the step of continuing to control the clamping device of the traction mechanism and the battery cell assembly to move together in the first direction away from the second opening until the battery cell assembly completely enters the battery casing.

[0012] Optionally, the method further includes the steps of: controlling part of the battery cell assembly to enter the battery housing; controlling the clamping device of the traction mechanism to release the traction part, and controlling the clamping device of the traction mechanism to leave the battery housing; and then applying force to completely push the battery cell assembly into the battery housing.

[0013] Optionally, the method further comprises the step of: controlling a cutting mechanism to cut off the traction portion after the battery cell assembly completely enters the battery housing.

[0014] The present invention also provides a battery cell shelling device, which is suitable for the battery cell shelling method as described in any of the above schemes, and specifically includes a first supporting mechanism, a second supporting mechanism, a pre-bending mechanism and a traction mechanism, the first supporting mechanism is used to support and fix the battery shell; the second supporting mechanism is used to support and transport the battery cell assembly along a first direction, and the second supporting mechanism and the first supporting mechanism are arranged in sequence along the first direction; the pre-bending mechanism is used to pre-bend the traction part; the pre-bending mechanism is located between the first supporting mechanism and the second supporting mechanism; the traction mechanism includes a clamping device and an operating drive device, and the clamping device is driven to move by the operating drive device; the clamping device is used to clamp or release the traction part.

[0015] Optionally, a cutting mechanism is also included, and the cutting mechanism is used to cut off the traction part.

[0016] Beneficial effects:

[0017] The battery cell shelling method places the battery shell on the first supporting mechanism so that the first opening and the second opening of the battery shell are opposite to each other in the first direction, and places the battery cell assembly on the second supporting mechanism, with the traction part facing the second opening of the battery shell; controls the clamping device of the traction mechanism to enter the battery shell from the first opening, and continues to control the traction mechanism so that the clamping device can clamp the traction part, and then the traction mechanism pulls the battery cell assembly to move in the first direction so that the battery cell assembly enters the battery shell, thereby realizing the assembly of the battery cell assembly and the battery shell. The battery cell shelling method uses the traction mechanism to clamp the traction part and pull the battery cell into the battery shell, which solves the problem of difficulty in shelling the battery cell without affecting the energy density of the battery itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of a battery cell assembly provided in a specific embodiment of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the battery cell assembly after entering the battery housing provided by a specific embodiment of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the end cover sealed battery housing provided by a specific embodiment of the present invention;

[0021] Figure 4 is a schematic structural diagram of a battery cell provided in a specific embodiment of the present invention;

[0022] Figure 5 is a schematic structural diagram of an insulating film when it is unfolded, provided by a specific embodiment of the present invention;

[0023] Figure 6It is a structural schematic diagram of a battery cell shell insertion device provided in a specific embodiment of the present invention;

[0024] Figure 7 It is a top view of the process of the battery cell shell insertion device provided by the specific embodiment of the present invention allowing the battery cell assembly to enter the battery shell;

[0025] Figure 8 A side view of the process of a battery cell assembly entering a battery casing during operation of a battery cell insertion device provided in a specific embodiment of the present invention

[0026] Fig. 9 It is a cross-sectional view of a battery cell provided in a specific embodiment of the present invention.

[0027] In the figure:

[0028] 10. first bearing mechanism; 11. clamping plate; 12. workbench; 20. second bearing mechanism; 30. traction mechanism; 31. clamping device; 40. fixing block; 41. passage; 42. first opening; 43. second opening; 44. inclined surface;

[0029] 100, battery cell; 101, first pole ear; 102, second pole ear; 200, battery case; 210, first opening; 220, second opening; 300, first adapter; 400, second adapter; 500, insulating film; 501, traction part; 600, first cover plate; 601, first insulating member; 700, second cover plate; 701, second insulating member; 800, end cover; 801, third opening. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0034] The first direction described in this specific embodiment is the length direction of the battery cell 100, that is, Figure 1 , Figure 2 , Figure 6 and Figure 7 The second direction is the width direction of the battery cell 100, that is, Figure 1 and Figure 2 The Y direction shown in ; the first direction and the second direction are perpendicular to each other.

[0035] Example 1

[0036] A battery cell shelling method of this embodiment is used to load a battery cell assembly wrapped with an insulating film 500 into a battery shell 200, wherein the battery shell 200 has a first opening 210 and a second opening 220 arranged opposite to each other along a first direction, and at least one side of the insulating film 500 in the first direction has a traction portion 501.

[0037] See also Figures 1 to 8 It can be seen that a method for inserting a battery cell into a shell in this embodiment specifically includes the following steps:

[0038] The battery housing 200 is arranged on the first supporting mechanism 10, and the first opening 210 and the second opening 220 of the battery housing 200 are arranged opposite to each other along the first direction; the battery cell assembly is arranged on the second supporting mechanism 20, and the traction part 501 is directly opposite to the second opening 220 of the battery housing 200; the clamping device 31 of the traction mechanism 30 and the battery housing 200 are controlled to move relative to each other, so that the clamping device 31 of the traction mechanism 30 enters the battery housing 200 from the first opening 210 of the battery housing 200; the clamping device 31 of the traction mechanism 30 and the battery cell assembly ... The components move relative to each other in the first direction until the traction portion 501 is at the clamping device 31 of the traction mechanism 30; the clamping device 31 of the traction mechanism 30 is controlled to clamp the traction portion 501; the clamping device 31 of the traction mechanism 30 is controlled to move together with the battery cell assembly in the first direction close to the first opening 210, so that the battery cell assembly enters the battery housing 200; the clamping device 31 of the traction mechanism 30 is continued to be controlled to move together with the battery cell assembly in the first direction away from the second opening 220 until the battery cell assembly completely enters the battery housing 200.

[0039] In the battery cell shelling method of this embodiment, since the battery shell 200 has a first opening 210 and a second opening 220 arranged relatively along a first direction, the clamping device 31 of the traction equipment can be controlled to enter the battery shell from the first opening; and since the traction part 501 is arranged on the insulating film 500, and the insulating film 500 is covered and fixed on the outside of the battery cell assembly, the traction equipment can pull the battery cell assembly through the traction part 501, so that the battery cell assembly enters the battery shell 200 from the second opening, and the shelling operation is quick, which speeds up the shelling speed; in addition, since in the process of driving the battery cell assembly into the battery shell 200, the traction force is transmitted to the insulating film 500 through the traction part 501, and the insulating film 500 then transmits the force to the battery cell assembly, therefore, compared with directly applying force to the battery cell, the risk of deformation of the battery cell can be reduced.

[0040] It should be noted that in order to make the force on the battery cell assembly more uniform, multiple traction parts 501 are generally designed, and the multiple traction parts 501 are evenly distributed around the battery cell assembly around the first direction; specifically in this embodiment, two traction parts 501 are provided, and the two traction parts 501 are relatively arranged along the second direction.

[0041] It should also be noted that as long as the battery shell 200 of the battery cell has a first opening 210 and a second opening 220 arranged opposite to each other along the first direction, and the battery cell assembly is coated with an insulating film 500, the battery cell shelling method of this embodiment can be implemented to perform the shelling process; wherein, the battery cell assembly can be the battery cell 100, or it can be composed of the battery cell 100 and brackets respectively located on both sides of the battery cell 100 along the first direction. The specific composition of the battery cell assembly is not limited, as long as it has the battery cell 100; the size of the first opening 210 and the size relationship of the second opening 220 are not limited, as long as the battery cell assembly can enter the battery shell 200 from the second opening 220, and the clamping device of the traction equipment can enter the battery shell 200 from the first opening 210.

[0042] Specifically in this embodiment, see Fig. 9 It can be seen that the battery cell assembly includes a battery cell 100, a first cover plate assembly and a second cover plate assembly, the insulating film 500 is coated on the outside of the battery cell 100, and the two ends of the insulating film 500 along the first direction are respectively fixed to the first cover plate assembly and the second cover plate assembly.

[0043] In this embodiment, the battery cell 100 is confined in a space surrounded by the first cover plate assembly, the second cover plate assembly and the insulating film 500, which protects the battery cell 100 during the process of inserting the battery cell into the shell and reduces the risk of deformation of the battery cell.

[0044] Specifically, see Fig. 9 The first cover plate assembly includes a first cover plate 600, a first pole and a first insulating member 601, the first pole is arranged on the first cover plate 600, and the first pole and the first cover plate 600 are insulated; the first insulating member 601 is located between the first cover plate 600 and the battery body, and the first insulating member 601 is arranged in contact with the first cover plate 600; the second cover plate assembly includes a second cover plate 700, a second pole and a second insulating member 701, the second pole is arranged on the second cover plate 700, and the second pole and the second cover plate 700 are insulated; the second insulating member 701 is located between the second cover plate 700 and the battery body, and the second insulating member 701 is arranged in contact with the second cover plate 700; the insulating film 500 is coated on the outside of the battery cell 100, and one end of the insulating film 500 in the first direction is connected to the first insulating member 601 and the second insulating member 701.

[0045] Next, the battery cell 100 includes a battery cell body, a first pole ear 101 and a second pole ear 102. The first pole ear 101 and the second pole ear 102 extend from both sides of the battery cell body along the first direction respectively. The first pole ear 101 of the battery cell 100 is connected to the first pole of the first cover assembly through the first adapter 300; the second pole ear 102 of the battery cell 100 is connected to the second pole of the second cover assembly through the second adapter 400.

[0046] In addition, in this specific embodiment, the first opening 210 and the second opening 220 of the battery housing 200 have the same size, that is, the battery cell also includes an end cover 800, the first cover plate 600 of the first cover plate assembly seals the second opening 220, the end cover 800 seals the second opening 220, the end cover 800 is provided with a third opening 801, and the second cover plate 700 of the second cover plate assembly seals the third opening 801.

[0047] In some other embodiments, the orthographic projection of the first opening 210 of the battery shell on the projection plane is located within the orthographic projection of the second opening 220 of the battery shell on the projection plane, and the projection plane and the first direction are perpendicular to each other; that is, the battery shell includes an outer shell and a cover, the second opening 220 is arranged at one end of the outer shell in the first direction, the other end of the outer shell is integrally formed or welded with a cover, and the first opening 210 is arranged on the cover.

[0048] In some embodiments, controlling the relative movement between the clamping device 31 of the traction mechanism 30 and the battery housing 200 includes: limiting the movement of the battery housing 200 by the first supporting mechanism 10, controlling the clamping device 31 of the traction mechanism 30 and the first opening 210 of the battery housing 200 to be arranged opposite each other, and controlling the clamping device 31 of the traction mechanism 30 to move toward the direction close to the second opening 220 of the battery housing 200.

[0049] In this embodiment, since the battery housing 200 is designed to be restricted in movement by the first supporting mechanism 10, that is, the battery housing 200 remains stationary during the entire process of the battery cell entering the housing, the movement accuracy can be improved regardless of whether the clamping device 31 of the traction mechanism 30 enters the battery housing 200 or the battery cell assembly enters the battery housing 200, thereby improving the accuracy of aligning the battery cell assembly with the second opening 220 of the battery housing 200, thereby preventing the edge of the battery housing from cutting the battery cell.

[0050] It should be noted that, if the purpose is only to allow the clamping device 31 of the traction mechanism 30 to enter the battery housing 200 from the first opening 210, it can be designed that: the clamping device 31 of the traction mechanism 30 remains stationary, and the first supporting mechanism 10 can drive the battery housing 200 to move until the clamping device 31 of the traction mechanism 30 enters the battery housing 200 from the first opening 210; it can also be designed that: the clamping device 31 of the traction mechanism 30 moves, and the first supporting mechanism 10 can drive the battery housing 200 to move until the clamping device 31 of the traction mechanism 30 enters the battery housing 200 from the first opening 210.

[0051] In some embodiments, controlling the clamping device 31 of the traction mechanism 30 and the battery cell assembly to move relative to each other in the first direction until the traction portion 501 is located at the clamping device 31 of the traction mechanism 30 includes:

[0052] The second supporting mechanism 20 is controlled to drive the battery cell assembly to move in the first direction along the direction close to the second opening 220 until the traction portion 501 at least partially extends into the second opening 220 of the battery housing 200; the clamping device 31 of the traction mechanism 30 is controlled to move in the first direction along the direction away from the first opening 210 until the clamping device 31 of the traction mechanism 30 is at the traction portion 501.

[0053] In this embodiment, the traction portion 501 is designed to stop the relative movement of the clamping device 31 of the traction mechanism 30 and the battery cell assembly in the first direction only after at least partially extending into the second opening 220 of the battery housing 200. In this way, the traction portion 501 serves to guide the battery cell assembly into the battery housing 200, further improving the accuracy of aligning the battery cell assembly with the second opening 220 of the battery housing 200.

[0054] It should be noted that, in order to allow the clamping device 31 of the traction mechanism 30 to clamp the traction portion 501 , the clamping device 31 of the traction mechanism 30 may be controlled to move out of the second opening 220 of the battery housing 200 until the clamping device 31 of the traction mechanism 30 is in the traction portion 501 .

[0055] Furthermore, in order to allow the traction part 501 to more easily extend into the second opening 220 of the battery shell 200, the traction part 501 is pre-bent before the clamping device 31 of the traction mechanism 30 clamps the traction part 501. It should be noted here that the pre-bending traction part 501 is to fold the traction part 501 so that the end of the traction part 501 away from the battery cell assembly can more easily enter the second opening 220 of the battery shell 200.

[0056] Specifically, the pre-bent pulling portion 501 is inclined toward the end surface of the battery cell assembly, and the end surface of the battery cell assembly and the first direction are perpendicular to each other.

[0057] In some embodiments, the clamping device 31 of the traction mechanism 30 is controlled to move together with the battery cell assembly in the first direction close to the first opening 210, including: controlling the second supporting mechanism 20 to drive the battery cell assembly to move in the first direction close to the first opening 210, and controlling the clamping device 31 of the traction mechanism 30 to drive the battery cell assembly to move in the first direction close to the first opening 210.

[0058] In this embodiment, not only is the traction mechanism 30 designed to pull the battery cell assembly into the battery casing 200, but the second supporting mechanism 20 is also designed to assist the battery cell assembly to enter the battery casing 200, which not only greatly shortens the shell entry time, but also reduces the traction force applied by the traction mechanism 30, thereby reducing the deformation risk of the battery cell assembly.

[0059] It should be noted that, in order to allow the battery cell assembly to enter the battery housing 200 , only the clamping device 31 of the traction mechanism 30 may be controlled to drive the battery cell assembly to move in the first direction close to the first opening 210 .

[0060] See also Figure 6 , Figure 7 and Figure 8 , a battery cell shelling device of the present embodiment is applicable to the battery cell shelling method, including: a first carrying mechanism 10, the first carrying mechanism 10 is used to carry and fix the battery shell 200; a second carrying mechanism 20, the second carrying mechanism 20 is used to carry and transport the battery cell assembly along the first direction, and the second carrying mechanism 20 and the first carrying mechanism 10 are arranged in sequence along the first direction; a pre-bending mechanism, the pre-bending mechanism is used to pre-bend the traction part 501; the pre-bending mechanism is located between the first carrying mechanism 10 and the second carrying mechanism 20; a traction mechanism 30, the traction mechanism 30 includes a clamping device 31 and a running drive device, the clamping device 31 is driven to move by the running drive device; the clamping device 31 is used to clamp or release the traction part 501.

[0061] It should be noted that, in order to ensure that the battery cell assembly can be transported from the second carrying mechanism 10 to the first carrying mechanism 10 , the distance between the second carrying mechanism 10 and the first carrying mechanism 10 is designed to be smaller than the length of the battery cell assembly along the first direction.

[0062] Regarding the first carrying mechanism 10, as long as the first carrying mechanism 10 can carry and fix the battery housing 200, the specific structure is not limited. For example, the first carrying mechanism 10 includes a workbench 12 and a clamp, and the clamp includes two clamps 11 arranged opposite to each other along the second direction. First, place the battery housing 200 on the workbench 12, and let the battery housing 200 be located between the two clamps 11. Then, control the two clamps 11 to move toward each other to achieve the purpose of fixing the battery housing 200.

[0063] The two clamping plates 11 can be controlled by a double-threaded ball screw nut pair to move toward or away from each other at the same time, or the two clamping plates 11 can be equipped with a telescopic driver respectively to realize the movement toward or away from each other.

[0064] Regarding the second carrying mechanism 10, as long as the second carrying mechanism 10 can carry and transport the battery cell assembly along the first direction, the specific structure is not limited. For example, the second carrying mechanism 10 is a belt conveyor mechanism. The battery cell assembly is first placed on the belt of the belt conveyor mechanism, and then the rotation of the belt of the belt conveyor mechanism will drive the battery cell assembly to move.

[0065] Regarding the pre-bending mechanism, as long as it can pre-bend the traction part 501, the specific structure is not limited. For example, the pre-bending mechanism includes a fixed block 40, which is fixed on a side of the workbench 12 close to the second supporting mechanism 10. The fixed block 40 is provided with a channel 41 that penetrates the fixed block 40 along the first direction, and the channel 41 has a first opening 42 arranged away from the second supporting mechanism 10, a second opening 43 arranged away from the first opening 42, and an inclined surface 44 connecting the first opening 42 and the second opening 43. The size of the first opening 42 is equal to the size of the second opening 220 of the battery housing 200, and the orthographic projection of the second opening 43 on the projection plane covers the orthographic projection of the traction part 501 on the insulating film 500 on the projection plane, and the projection plane and the first direction are perpendicular to each other; the inclined surface 44 and the traction part 501 are in a one-to-one correspondence. Specifically, since the insulating film 500 has two traction parts 501 arranged opposite to each other along the second direction, the channel 41 has two inclined surfaces 44 arranged opposite to each other along the second direction.

[0066] The specific pre-bending process is: control the second supporting mechanism 10 to work, send the battery cell assembly from the second opening 43 into the channel 41, and then pre-bend the traction part 501 under the thrust of the second supporting mechanism 10 to transport the battery cell assembly and the cooperation of the inclined surface 44; in addition, under the action of the inclined surface 44, guide the traction part 501 and the battery cell assembly into the second opening 210 of the battery shell 200, ensuring the accuracy of the battery cell assembly aligning with the second opening 210 of the battery shell 200.

[0067] Regarding the clamping device 31 , as long as it can clamp or release the traction part 501 , the specific structure is not limited. For example, the clamping device 31 includes at least one electric clamping claw, and the electric clamping claw can be controlled to clamp or release the traction part 501 by giving an electrical signal to the electric clamping claw.

[0068] Regarding the operating drive device, as long as it can drive the clamping device 31 to move in three-dimensional space, the specific structure is not limited. For example, the operating drive device is an XYZ three-axis linear module, and the driving end of the operating drive device is connected to the electric clamp. The electric clamp can be driven to move by controlling the operating drive device, thereby clamping the traction part 501 and driving the battery cell assembly to move through the traction part 501.

[0069] Example 2

[0070] The battery cell shelling method and battery cell shelling equipment of the second embodiment are the same as those of the first embodiment, except that after the battery cell assembly completely enters the battery shell 200, the cutting mechanism is controlled to cut off the traction portion 501.

[0071] In this embodiment, without changing the structure of the battery cell, the additional pulling portion 501 is prevented from occupying the space inside the battery housing 200 , and the pulling portion 501 is directly cut off.

[0072] A battery cell shelling device in the second embodiment also includes a cutting mechanism, which is used to cut off the traction part 501. The cutting mechanism only needs to be able to cut off the traction part 501, and the specific structure is not limited. For example, the cutting mechanism includes a driver and a cutter. The driver drives the cutter to run to the traction part 501, and the driver drives the cutter to cut off the traction part 501.

[0073] Example 3

[0074] A battery cell shelling method and a battery cell shelling device of this embodiment 3 are the same as the base of embodiment 1, except that: controlling part of the battery cell assembly to enter the battery shell 200; controlling the clamping device 31 of the traction mechanism 30 to release the traction part 501, and controlling the clamping device 31 of the traction mechanism 30 to leave the battery shell 200; and then applying force to push the battery cell assembly completely into the battery shell 200.

[0075] In this embodiment, the battery cell assembly is first pre-pulled into the battery housing 200, and then the battery cell assembly is pushed completely into the battery housing 200. The push-pull combination is more flexible to use and is applicable to more battery cells. A battery cell shell entry device in this embodiment 3 also includes a pushing mechanism, which is used to push the battery cell assembly into the battery housing 200. The specific structure of the pushing mechanism is not limited, as long as it can push the battery cell assembly to move. For example, the pushing mechanism includes a push plate and a driver, and the driver drives the push plate to move to the end of the battery cell assembly away from the traction part 501, and the driver drives the push plate to push the battery cell assembly to move along the first direction until the battery cell assembly completely enters the battery housing 200.

[0076] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A method for inserting a battery cell into a shell, characterized in that: The battery housing (200) has a first opening (210) and a second opening (220) arranged opposite to each other along a first direction, the battery cell assembly is coated with an insulating film (500), and at least one side of the insulating film (500) in the first direction has a traction portion (501); the method specifically comprises the following steps: The battery housing (200) is arranged on a first supporting mechanism (10), and the first opening (210) and the second opening (220) of the battery housing (200) are arranged opposite to each other along a first direction; The battery cell assembly is arranged on a second supporting mechanism (20), and the traction portion (501) is positioned directly opposite to the second opening (220) of the battery housing (200); Controlling the relative movement of the clamping device (31) of the traction mechanism (30) and the battery housing (200) so that the clamping device (31) of the traction mechanism (30) enters the battery housing (200) from the first opening (210) of the battery housing (200); Controlling the clamping device (31) of the traction mechanism (30) and the battery core assembly to move relative to each other in a first direction until the traction portion (501) is located at the clamping device (31) of the traction mechanism (30); Controlling the clamping device (31) of the traction mechanism (30) to clamp the traction portion (501); The clamping device (31) of the traction mechanism (30) is controlled to move together with the battery cell assembly in a first direction close to the first opening (210), so that the battery cell assembly enters the battery housing (200).

2. The battery cell shelling method according to claim 1, characterized in that: Controlling the relative movement of the clamping device (31) of the traction mechanism (30) and the battery housing (200), comprising: limiting the movement of the battery housing (200) by means of a first bearing mechanism (10), controlling the clamping device (31) of the traction mechanism (30) and the first opening (210) of the battery housing (200) to be arranged opposite to each other, and controlling the clamping device (31) of the traction mechanism (30) to move in a direction close to the second opening (220) of the battery housing (200).

3. The battery cell shelling method according to claim 2, characterized in that: Controlling the clamping device (31) of the traction mechanism (30) and the battery core assembly to move relative to each other in a first direction until the traction portion (501) is located at the clamping device (31) of the traction mechanism (30), comprising: Controlling the second bearing mechanism (20) to drive the battery cell assembly to move in a first direction along a direction close to the second opening (220) until the traction portion (501) at least partially extends into the second opening (220) of the battery housing (200); The clamping device (31) of the traction mechanism (30) is controlled to move in a first direction away from the first opening (210) until the clamping device (31) of the traction mechanism (30) is located at the traction portion (501).

4. The battery cell shelling method according to claim 3, characterized in that: Controlling the clamping device (31) of the traction mechanism (30) and the battery cell assembly to move together in a first direction close to the first opening (210), comprising: controlling the second bearing mechanism (20) to drive the battery cell assembly to move in the first direction close to the first opening (210), and controlling the clamping device (31) of the traction mechanism (30) to drive the battery cell assembly to move in the first direction close to the first opening (210).

5. The battery cell shelling method according to any one of claims 1 to 4, characterized in that: The method further comprises the step of pre-bending the traction portion (501) before the clamping device (31) of the traction mechanism (30) clamps the traction portion (501).

6. The battery cell shelling method according to claim 5, characterized in that: Also includes the steps: The clamping device (31) of the traction mechanism (30) is continuously controlled to move together with the battery cell assembly in a first direction away from the second opening (220) until the battery cell assembly completely enters the battery housing (200).

7. The battery cell shelling method according to claim 5, characterized in that: The method further comprises the steps of: controlling part of the battery cell assembly to enter the battery housing (200); controlling the clamping device (31) of the traction mechanism (30) to release the traction portion (501), and controlling the clamping device (31) of the traction mechanism (30) to leave the battery housing (200); and then applying force to completely push the battery cell assembly into the battery housing (200).

8. The battery cell shelling method according to claim 5, characterized in that: Also includes the steps: After the battery cell assembly completely enters the battery housing (200), the cutting mechanism is controlled to cut off the traction portion (501).

9. Battery cell shelling equipment, characterized in that: A method for inserting a battery cell into a shell according to any one of claims 1 to 7, comprising: A first carrying mechanism (10), the first carrying mechanism (10) being used to carry and fix the battery housing (200); A second carrying mechanism (20), the second carrying mechanism (20) being used for carrying and conveying the battery cell assembly along a first direction, the second carrying mechanism (20) and the first carrying mechanism (10) being arranged in sequence along the first direction; A pre-bending mechanism, the pre-bending mechanism is used to pre-bend the traction portion (501); the pre-bending mechanism is located between the first supporting mechanism (10) and the second supporting mechanism (20); A traction mechanism (30), the traction mechanism (30) comprising a clamping device (31) and an operating drive device, the clamping device (31) being driven to move by the operating drive device; the clamping device (31) being used to clamp or release the traction portion (501).

10. The battery cell shelling device according to claim 9, characterized in that: It also includes a cutting mechanism, which is used to cut off the traction part (501).

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