Adsorption assembly and lamination device with same

Abstract

The adsorption assembly comprises a supporting piece, an adsorption piece and a non-return piece, one end of the supporting piece is used for being connected with vacuum equipment, the supporting piece is provided with a first channel, the first channel is communicated with the vacuum equipment, the adsorption piece is connected with the other end of the supporting piece, the adsorption piece is provided with a second channel, and the non-return piece is communicated with the first channel. The second channel is communicated with the first channel and the external environment, at least one of the first channel and the second channel is provided with a non-return piece, the non-return piece has a first state and a second state, when the vacuum equipment is in a standby state, the non-return piece is in the first state, when the vacuum equipment works, the non-return piece is in the second state, and when the non-return piece is in the first state, the non-return piece is in the second state. In the first state, at least part of the first channel is isolated from the external environment, and in the second state, the first channel communicates with the external environment through the second channel. According to the adsorption assembly, foreign matters are not easy to fall on the pole pieces, so that the occurrence of short circuit in the laminated core is reduced, the process qualification rate is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to an adsorption component and a stacking device having the same. Background Art

[0002] When producing lithium-ion batteries, the negative electrode sheet, the positive electrode sheet and the separator need to be stacked together. This process is called lamination. When the electrode sheets produced by lamination are die-cut, foreign objects such as granular powder and thin strips will be generated around the electrode sheets. These foreign objects will enter the adsorption device with the adsorption action. When the adsorption device stops adsorption, the foreign objects will fall onto the electrode sheets. The electrode sheets with foreign objects will enter the stacked core along with the stacking of the battery cell, which may cause a short circuit inside the stacked core. At the same time, the short-circuited stacked core will also reduce the process qualification rate, resulting in an increase in the cost of battery cell manufacturing. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an adsorption component, which can prevent foreign matter from falling onto the pole piece, thereby reducing the occurrence of short circuit inside the stacked core, improving the process qualification rate, and reducing production costs.

[0004] The utility model also aims to provide a lamination device having the above-mentioned adsorption component.

[0005] According to the embodiment of the first aspect of the utility model, the adsorption component includes a support member, an adsorption member and a check member, one end of the support member is used to connect to the vacuum equipment, the support member has a first channel, the first channel is connected to the vacuum equipment, the adsorption member is connected to the other end of the support member, the adsorption member has a second channel, the second channel connects the first channel with the external environment, at least one of the first channel and the second channel is provided with a check member, the check member has a first state and a second state, when the vacuum equipment is on standby, the check member is in the first state, when the vacuum equipment is working, the check member is in the second state, in the first state, at least part of the first channel is blocked from the external environment, in the second state, the first channel is connected to the external environment through the second channel.

[0006] According to the adsorption component of the utility model, a check piece is provided in at least one of the first channel and the second channel, and the check piece blocks at least a part of the first channel and the external environment when the vacuum equipment is on standby, so that foreign matter is not easy to fall onto the pole piece. When the vacuum equipment is working, the first channel is connected to the external environment through the second channel, and the first channel and the second channel can be evacuated. At this time, foreign matter is not easy to fall onto the pole piece under the action of vacuum suction, so that after the pole piece is stacked to form a battery, the battery is not easy to short-circuit, thereby improving the qualified rate of the process, improving the safety of battery use, and reducing production costs.

[0007] According to some embodiments of the present utility model, the check member is sheet-shaped and includes a fixing portion and at least one folding portion. The fixing portion is connected to the side wall of the first channel or the side wall of the second channel. One end of the folding portion is connected to the fixing portion, and the other end is a free end. There is a folding slit between the free ends of the folding portions. The folding portion has a first position and a second position. In the first position, the folding portion and the fixing portion are in the same plane to block at least part of the first channel from the external environment. In the second position, the folding portion forms a certain angle with the fixing portion to conduct the first channel and the external environment.

[0008] According to some embodiments of the present utility model, the fixing portion is annular, and there are multiple folding portions which are connected to the inner circumference of the fixing portion.

[0009] According to some embodiments of the present utility model, one ends of the multiple folding portions are connected to the inner circumference of the fixing portion in sequence or at intervals. In this way, when the vacuum device works, the free ends of the multiple folding portions are folded to switch to the second position, and a relatively large gap or notch can be formed, which is beneficial for the adsorbing member to adsorb the pole piece.

[0010] According to some embodiments of the present utility model, the check member is arranged in the first channel. The support member is provided with a through hole for connecting a dust removal device. The through hole communicates the first channel and the external environment and is located on the side of the check member away from the adsorbing member; or, the check member is arranged in the second channel. The support member or the adsorbing member is provided with a through hole for connecting a dust removal device. The through hole communicates the first channel and the external environment, or communicates the second channel and the external environment, and is located on the side of the check member close to the support member.

[0011] According to some embodiments of the present utility model, the check member is arranged in the first channel; a clamping groove is provided on the side wall of the first channel, and the check member is inserted into the clamping groove.

[0012] According to some embodiments of the present utility model, at least one groove is provided on one of the support member and the adsorbing member, and a protrusion matching with the groove is provided on the other. The protrusion is inserted into the groove to connect the support member and the adsorbing member.

[0013] According to some embodiments of the present utility model, the adsorption assembly further includes a sealing member which is in interference fit with the support member and the adsorbing member to seal the connection between the support member and the adsorbing member.

[0014] According to some embodiments of the present utility model, the adsorption assembly further includes a connecting member connected to the support member, and the connecting member is used to connect the support member and the hollow platform.

[0015] According to the lamination device of the second aspect embodiment of the present utility model, it includes a lamination table and the adsorption assembly as described in the above embodiments. The adsorption assembly is used to adsorb the pole piece to the lamination table.

[0016] The lamination device according to the embodiment of the present utility model improves the qualification rate of the battery after lamination and reduces the production cost by adopting the adsorption component in the above embodiment.

[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Description of the Drawings

[0018] Figure 1 is a schematic structural view of an adsorption component according to an embodiment of the present application;

[0019] Figure 2 is another schematic structural view of an adsorption component according to an embodiment of the present application;

[0020] Figure 3 is a bottom view of an adsorption component according to an embodiment of the present application;

[0021] Figure 4 is Figure 3 the sectional view taken along line A-A in

[0022] Figure 5 is a schematic structural view of an embodiment of a check member of an adsorption component according to an embodiment of the present application;

[0023] Figure 6 is a bottom view of an embodiment of a check member of an adsorption component according to an embodiment of the present application;

[0024] Figure 7 is a top view of another embodiment of a check member of an adsorption component according to an embodiment of the present application;

[0025] Figure 8 is a schematic structural view of a support member of an adsorption component according to an embodiment of the present application;

[0026] Figure 9 is a schematic structural view of an adsorbing member of an adsorption component according to an embodiment of the present application.

[0027] Reference Signs:

[0028] Adsorption component 100,

[0029] Support member 10, first channel 10a, through hole 11, card slot 12, groove 13,

[0030] Adsorbing member 20, second channel 20a, protrusion 21,

[0031] Check member 30, fixing portion 31, folding portion 32,

[0032] Sealing member 40, connecting member 50, limiting portion 51, dust removal device 60. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0035] The adsorption assembly 100 and the lamination device having the same according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0036] Reference Figures 1 - 4 According to the adsorption component 100 of the embodiment of the first aspect of the utility model, it includes a support member 10, an adsorption member 20 and a check member 30. One end of the support member 10 is used to connect the vacuum equipment. The support member 10 has a first channel 10a, and the first channel 10a is connected to the vacuum equipment. The adsorption member 20 is connected to the other end of the support member 10. The adsorption member 20 has a second channel 20a, and the second channel 20a connects the first channel 10a with the external environment. At least one of the first channel 10a and the second channel 20a is provided with a check member 30. The check member 30 has a first state and a second state. When the vacuum equipment is on standby, the check member 30 is in the first state. When the vacuum equipment is working, the check member 30 is in the second state. In the first state, at least part of the first channel 10a is blocked from the external environment. In the second state, the first channel 10a is connected to the external environment through the second channel 20a.

[0037] Specifically, refer to Figures 1 - 4, in the embodiment of the present utility model, the adsorption assembly 100 includes a support member 10, and the support member 10 is used to provide support. One end of the support member 10 is used to connect to a vacuum device, and the vacuum device can be a vacuum pump or the like. The support member 10 has a first channel 10a, and the structure and shape of the first channel 10a are not limited. For example, the first channel 10a can extend in a straight line, or extend along a curve or a broken line, etc. The cross-section of the first channel 10a can be circular, polygonal, irregular, etc. The first channel 10a is communicated with the vacuum device, and when the vacuum device works, the first channel 10a can be evacuated.

[0038] The adsorption assembly 100 further includes an adsorbing member 20, and the adsorbing member 20 can be used to adsorb a pole piece or the like. Preferably, the adsorbing member 20 can be a flexible member, for example, it can be a rubber member or the like. The adsorbing member 20 has a second channel 20a, and the structure and shape of the second channel 20a are not limited. For example, the second channel 20a can extend in a straight line, or extend along a curve or a broken line, etc. The cross-section of the second channel 20a can be circular, polygonal, irregular, etc. The second channel 20a communicates the first channel 10a with the external environment. In this way, the second channel 20a is communicated with the vacuum device connected to the first channel 10a, and the vacuum device can evacuate the second channel 20a so that the adsorbing member 20 can adsorb a pole piece or the like.

[0039] The adsorption assembly 100 further includes a check member 30, and at least one of the first channel 10a and the second channel 20a is provided with the check member 30. Specifically, the check member 30 can be one or more. When the check member 30 is one, the check member 30 can be provided in the first channel 10a or the second channel 20a; when the check member 30 is more than two, the check members 30 can be all provided in the first channel 10a or the second channel 20a, or the check members 30 are respectively provided in the first channel 10a and the second channel 20a.

[0040] The check member 30 has a first state and a second state. When the vacuum device is on standby, at this time, the vacuum device does not evacuate, and the check member 30 is in the first state. When the vacuum device works, at this time, the vacuum device evacuates, and the check member 30 is in the second state. In the second state, the first channel 10a is conducted with the external environment through the second channel 20a. At this time, the vacuum device evacuates the first channel 10a and the second channel 20a. Under the action of evacuation, foreign matters are not likely to fall onto the pole piece. In the first state, at least part of the first channel 10a is blocked from the external environment. In this way, the foreign matters that entered the first channel 10a during the previous evacuation are blocked in the first channel 10a and are not likely to fall onto the pole piece. Thus, after the pole pieces are stacked to form a battery, the battery is not likely to short-circuit, the qualification rate of the process is improved, the use safety of the battery is improved, and the production cost is reduced.

[0041] Thus, referring to Figures 1 - 4, according to the adsorption component 100 of the present utility model, by providing a check member 30 in at least one of the first channel 10a and the second channel 20a, and the check member 30 blocks at least part of the first channel 10a from the external environment when the vacuum device is on standby. In this way, foreign objects are not easily dropped onto the electrode sheet. When the vacuum device is working, the first channel 10a is communicated with the external environment through the second channel 20a, and the first channel 10a and the second channel 20a can be evacuated. At this time, under the action of the vacuum suction force, foreign objects are not easily dropped onto the electrode sheet either. Thus, after the electrode sheets are stacked to form a battery, the battery is not easily short-circuited, the qualified rate of the process is improved, the use safety of the battery is improved, and the production cost is reduced.

[0042] In some embodiments of the present utility model, referring to Figures 5 - 7 , the check member 30 is sheet-shaped and includes a fixing portion 31 and at least one folding portion 32. The fixing portion 31 is connected to the side wall of the first channel 10a or the side wall of the second channel 20a. One end of the folding portion 32 is connected to the fixing portion 31, and the other end is a free end. There is a folding slit between the free ends of the folding portions 32. The folding portion 32 has a first position and a second position. In the first position, the folding portion 32 and the fixing portion 31 are in the same plane to block at least part of the first channel 10a from the external environment. In the second position, the folding portion 32 forms a certain angle with the fixing portion 31 to conduct the first channel 10a and the external environment.

[0043] The check member 30 is provided as sheet-shaped, which is convenient for folding and is beneficial to folding under the suction force of the vacuum device to switch from the first state to the second state. The check member 30 includes a fixing portion 31, and the fixing portion 31 can be connected to the side wall of the first channel 10a or the side wall of the second channel 20a. Specifically, it can be fixedly connected, such as bonding, etc., or it can be detachably connected, such as snap connection or connection through a connection component, etc. The check member 30 further includes at least one folding portion 32. For example, the folding portion 32 can be one, two, four, seven, etc. One end of the folding portion 32 is connected to the fixing portion 31, which can be fixedly connected, integrally formed or connected through an adapter, etc.; the other end can be a free end. There is a folding slit between the free ends of the folding portions 32, so that the free ends of the folding portions 32 can be folded along the folding slit, and thus the switching of the folding portion 32 between the first position and the second position can be realized.

[0044] When the folding portion 32 is in the first position, it is in the same plane as the fixing portion 31, but there is a folding slit between the free ends of the folding portions 32. Referring to Figure 7 , in this way, the folding portion 32 and the fixing portion 31 can form a whole and partially block between the first channel 10a and the external environment, so that foreign objects are not easily dropped onto the electrode sheet. When the folding portion 32 is in the second position, it forms a certain angle with the fixing portion 31. Referring to Figure 5 andFigure 6 , because at this time, the vacuum device is working, generating a certain suction force on the folding part 32, and the free end of the folding part 32 can be folded along the folding slit under the action of the suction force. Of course, the present application is not limited to this, and the folding part 32 can also be automatically flipped or manually flipped in other ways. The folding part 32 forms a certain angle with the fixed part 31, so that an air vent gap or notch is formed between the folding part 32 and the fixed part 31, and the vacuum device can evacuate the first channel 10a and the second channel 20a to adsorb the electrode sheet.

[0045] In the solution of the present application, referring to Figures 5 - 7 , the fixed part 31 and the folding part 32 are integrally formed, and the folding part 32 is formed by cutting. In this way, when the folding part 32 is in the first position, the folding slit between the free ends of the folding part 32 is small, and smaller foreign particles (such as dust particles) are not likely to fall onto the electrode sheet.

[0046] In some embodiments of the present utility model, referring to Figures 5 - 7 , the fixed part 31 is annular, and there are multiple folding parts 32, and the multiple folding parts 32 are connected to the inner circumference of the fixed part 31.

[0047] The fixed part 31 is set to be annular and can be circumferentially connected to the side wall of the first channel 10a or the second channel 20a, and the connection reliability is relatively high. There are multiple folding parts 32, and the folding parts 32 have folding ability and resilience ability, and can be flipped under the action of vacuum suction, and can also rebound to restore the original state after vacuum pressure relief to switch between the first position and the second position.

[0048] Of course, it can be understood that the fixed part 31 and the folding part 32 can be a split structure, that is, one end of the fixed part 31 can be connected to the side wall of the first channel 10a or the second channel 20a, and the other end can be connected to the folding part 32.

[0049] In some embodiments, the fixed part 31 can also be a hollow structure or the like.

[0050] In some embodiments of the present utility model, referring to Figure 7 , one ends of the multiple folding parts 32 are sequentially connected to the inner circumference of the fixed part 31. In this way, when the vacuum device is working, the free ends of the multiple folding parts 32 are folded and switched to the second position, and a larger gap or notch can be formed, which is beneficial to the suction member 20 to adsorb the electrode sheet.

[0051] Specifically, at this time, the inner circumference of the fixed part 31 can be a regular polygon, such as a regular hexagon, a regular pentagon, etc. The folding part 32 can be an isosceles triangle, etc.

[0052] Of course, the present application is not limited to this. The inner circumference of the fixing part 31 can also be of other shapes, as long as it can cooperate with the folding part 32 to block the first channel 10a and the external environment when the folding part 32 is in the first position, and conduct the first channel 10a and the external environment when in the second position.

[0053] In some embodiments of the present utility model, referring to Figure 5 and Figure 6 , one ends of multiple folding parts 32 are connected to the inner circumference of the fixing part 31 at intervals. In this way, the area of the fixing part 31 is relatively large, and the structural stability is relatively high.

[0054] Specifically, the inner circumference of the fixing part 31 can be formed by alternating rectangular notches and triangular protrusions. One end of the folding part 32 connected to the fixing part 31 can be rectangular, and the other end can be triangular. The folding part 32 as a whole forms a shape similar to an arrow. When the folding part 32 is not folded, the arrow shape can be adapted to the triangle of the fixing part 31.

[0055] Of course, the present application is not limited to this. The inner circumference of the fixing part 31 can also be formed by rectangular notches or arc-shaped notches. One end of the folding part 32 connected to the fixing part 31 can be rectangular or arc-shaped, and the other end can be triangular or arc-shaped, etc.

[0056] In some embodiments of the present utility model, referring to Figures 1 - 2 and Figure 4 , the check member 30 is provided in the first channel 10a, the support member 10 is provided with a through hole 11, the through hole 11 is used to connect the dust removal device 60, the through hole 11 communicates the first channel 10a and the external environment, and is located on the side of the check member 30 away from the adsorption member 20; or, the check member 30 is provided in the second channel 20a, the support member 10 or the adsorption member 20 is provided with a through hole 11, the through hole 11 is used to connect the dust removal device 60, the through hole 11 communicates the first channel 10a and the external environment or the second channel 20a and the external environment, and is located on the side of the check member 30 close to the support member 10.

[0057] By providing the through hole 11 connected to the dust removal device 60, when the check member 30 is in the first state, foreign matters, dust, etc. enclosed in the first channel 10a can be removed, so that when the check member 30 switches between the first state and the second state, foreign matters, dust, etc. are not likely to fall on the pole piece.

[0058] Specifically, when the check member 30 is disposed in the first channel 10a, the through hole 11 is disposed on the side wall of the first channel 10a, and is located on the side of the check member 30 away from the adsorption member 20, and is disposed close to the check member 30, so as to remove foreign matters, dust, etc. that fall on the check member 30. When the check member 30 is disposed in the second channel 20a, the through hole 11 is disposed on the side wall of the second channel 20a, and is located on the side of the check member 30 close to the support member 10, and is disposed close to the check member 30. Preferably, the check member 30 is disposed in the first channel 10a.

[0059] In some embodiments of the present invention, referring to Figure 4 , the check member 30 is disposed in the first channel 10a; a card slot 12 is provided on the side wall of the first channel 10a, and the check member 30 can be inserted into the card slot 12 by deformation.

[0060] By providing the card slot 12 on the side wall of the first channel 10a and inserting and connecting the check member 30 with the card slot 12, the installation is convenient and the connection reliability is high.

[0061] Specifically, the card slot 12 can be one and is provided in a circumferential direction along the side wall of the first channel 10a, or can be multiple, and the multiple card slots 12 are circumferentially spaced along the side wall of the first channel 10a.

[0062] Of course, the present application is not limited thereto, and the check member 30 and the first channel 10a can also be connected in other ways. For example, they can be bonded or detachably connected through a connection structure, etc.

[0063] In some embodiments of the present invention, referring to Figure 8 and Figure 9 , one of the support member 10 and the adsorption member 20 is provided with a groove 13, and the other is provided with a protrusion 21 that cooperates with the groove 13, and the protrusion 21 is inserted into the groove 13 to connect the support member 10 and the adsorption member 20.

[0064] The support member 10 and the adsorption member 20 are connected through the groove 13 and the protrusion 21. Since the adsorption member 20 is a flexible member, it is convenient to detachably connect with the support member 10 through the groove 13 and the protrusion 21, which is convenient for installation, disassembly and replacement.

[0065] Specifically, the groove 13 can be provided on the support member 10. At this time, the protrusion 21 is provided on the adsorption member 20; or the groove 13 is provided on the adsorption member 20 and the protrusion 21 is provided on the support member 10. In the solution of the present application, the groove 13 is provided on the support member 10 and is provided in a circumferential direction along the support member 10, and the protrusion 21 is provided on the adsorption member 20 and is provided in a circumferential direction along the adsorption member 20. Further, the groove 13 is a through groove, the adsorption member 20 is sleeved in the support member 10, and the protrusion 21 is provided on the outer periphery of the adsorption member 20 and cooperates with the groove 13. Of course, it can be understood that the groove 13 can also be non-through, and the groove 13 can be provided on the inner circumference or the outer circumference of the support member 10.

[0066] In some embodiments of the present utility model, referring to Figure 8 and Figure 9 , there are multiple protrusions 21, and the multiple protrusions 21 are arranged at intervals along the circumferential direction of the adsorbing member 20. There are multiple grooves 13, and the multiple grooves 13 are arranged at intervals along the circumferential direction of the support member 10.

[0067] By providing multiple grooves 13 arranged at intervals to connect with the multiple protrusions 21, the structural strength of the support member 10 is improved.

[0068] Of course, it can be understood that the groove 13 can also be one and is arranged along the circumferential direction of the support member 10.

[0069] In some embodiments of the present utility model, referring to Figure 2 and Figure 4 , the adsorption assembly 100 further includes a seal 40. The seal 40 is in interference fit with the support member 10 and the adsorbing member 20 to seal the connection between the support member 10 and the adsorbing member 20.

[0070] By providing the seal 40 to seal the connection between the support member 10 and the adsorbing member 20, the vacuum pumping effect is improved, which is beneficial for the adsorbing member 20 to adsorb the pole piece.

[0071] Specifically, the seal 40 is a flexible member. Preferably, the seal 40 is a rubber member. The seal 40 is sleeved on the outer side of the support member 10 and is located at the groove 13 to be in interference fit with the support member 10 and the adsorbing member 20 respectively.

[0072] In some embodiments, the seal 40 can be one or more.

[0073] In some embodiments of the present utility model, referring to Figure 2 and Figure 4 , the adsorption assembly 100 further includes a connecting member 50 connected to the support member 10. The connecting member 50 is used to connect the support member 10 with the hollow platform.

[0074] By providing the connecting member 50 connected to the support member 10, the adsorption assembly 100 can be connected to the hollow platform, so that the adsorption assembly 100 can move synchronously with the hollow platform.

[0075] Specifically, the connecting member 50 and the support member 10 and the hollow platform can be fixedly connected, for example, by welding or other means; or by detachable connection, for example, by bolt and nut connection, snap connection, limit connection or other means for connection.

[0076] In some embodiments of the present utility model, referring to Figure 2 and Figure 4, the connecting member 50 includes two limiting portions 51 spaced apart on the support member 10, and at least one of the two limiting portions 51 is detachably connected to the support member 10.

[0077] By providing two spaced-apart limiting portions 51 to limit the connection between the support member 10 and the hollow platform, and by detachably connecting at least one limiting portion 51 to the support member 10, it is convenient to connect the limiting portion 51 to the support member 10 after the support member 10 extends into the hollow platform, and the two limiting portions 51 limit the connection of the support member 10 to the hollow platform.

[0078] Specifically, the limiting portion 51 can be detachably connected to the support member 10 by means such as threaded connection or snap connection. One or two of the limiting portions 51 can be detachably connected to the support member 10.

[0079] In some embodiments, referring to Figure 1 , the adsorption assembly 100 further includes a dust removal device 60, and the dust removal device 60 is connected to the through hole 11.

[0080] The laminating device according to the second aspect embodiment of the present invention includes a laminating table and the adsorption assembly 100 in the above embodiment. The adsorption assembly 100 is used to adsorb the electrode sheets to the laminating table for continuous laminating operation. Due to the provision of the check valve 30 in the adsorption assembly 100, during or after the laminating process, foreign objects are not easily dropped onto the electrode sheets under the action of the vacuum suction force. As a result, after the electrode sheets are laminated to form a battery, the battery is not easily short-circuited, the qualification rate of the process is improved, the use safety of the battery is improved, and the production cost is reduced.

[0081] The laminating device according to the embodiment of the present invention improves the qualification rate of the battery after laminating and reduces the production cost by adopting the adsorption assembly 100 in the above embodiment.

[0082] Specifically, the laminating device further includes a hollow platform, and the adsorption assembly 100 is connected to the hollow platform through a connecting member 50.

[0083] In the description of the present invention, 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", "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 invention 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 therefore should not be construed as a limitation to the present invention.

[0084] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection, an electrical connection, or a communication connection; it may be a direct connection, or an indirect connection through an intermediate medium, and may be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0085] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean 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 mean that the first feature is directly below or obliquely below the second feature, or indicates that the first feature has a lower horizontal height than the second feature.

[0086] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0087] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. An adsorption component, characterized in that: include: A support member (10), one end of the support member (10) being used to connect to a vacuum device, the support member (10) having a first channel (10a), the first channel (10a) being in communication with the vacuum device; an adsorption member (20), the adsorption member (20) being connected to the other end of the support member (10), the adsorption member (20) having a second channel (20a), the second channel (20a) being connected between the first channel (10a) and the external environment; a check member (30), at least one of the first channel (10a) and the second channel (20a) being provided with the check member (30), the check member (30) having a first state and a second state, the check member (30) being in the first state when the vacuum device is on standby, and being in the second state when the vacuum device is operating; In the first state, at least a portion of the first channel (10a) is blocked from the external environment, and in the second state, the first channel (10a) is connected to the external environment through the second channel (20a).

2. The adsorption assembly according to claim 1, characterized in that: The return stopper (30) is in sheet form and comprises: a fixing portion (31), the fixing portion (31) being connected to a side wall of the first channel (10a) or a side wall of the second channel (20a); at least one folding portion (32), one end of the folding portion (32) is connected to the fixing portion (31), the other end is a free end, and a folding slit is provided between the free ends of each folding portion (32), the folding portion (32) has a first position and a second position, In the first position, the folded portion (32) and the fixed portion (31) are located in the same plane to block at least a portion of the first channel (10a) from the external environment; in the second position, the folded portion (32) and the fixed portion (31) form a certain angle to connect the first channel (10a) with the external environment.

3. The adsorption assembly according to claim 2, characterized in that: The fixing portion (31) is annular, and there are a plurality of folding portions (32), and the plurality of folding portions (32) are connected to the inner periphery of the fixing portion (31).

4. The adsorption assembly according to claim 3, characterized in that: One ends of the plurality of folded portions (32) are connected to the inner periphery of the fixing portion (31) in sequence or at intervals.

5. The adsorption assembly according to any one of claims 1 to 4, characterized in that: The check member (30) is arranged in the first channel (10a), the support member (10) is provided with a through hole (11), the through hole (11) is used to connect the dust removal device (60), the through hole (11) communicates with the first channel (10a) and the external environment, and is located on a side of the check member (30) away from the adsorption member (20); Alternatively, the check member (30) is arranged in the second channel (20a), the support member (10) or the adsorption member (20) is provided with a through hole (11), the through hole (11) is used to connect the dust removal device (60), the through hole (11) connects the first channel (10a) and the external environment, or connects the second channel (20a) and the external environment, and is located on a side of the check member (30) close to the support member (10).

6. The adsorption assembly according to any one of claims 1 to 4, characterized in that: The check member (30) is arranged in the first channel (10a); A slot (12) is provided on the side wall of the first channel (10a), and the return stopper (30) is inserted into the slot (12).

7. The adsorption assembly according to any one of claims 1 to 4, characterized in that: One of the support member (10) and the adsorption member (20) is provided with at least one groove (13), and the other is provided with a protrusion (21) matching with the groove (13), and the protrusion (21) is inserted into the groove (13) to connect the support member (10) and the adsorption member (20).

8. The adsorption assembly according to any one of claims 1 to 4, characterized in that: It also comprises a sealing member (40), wherein the sealing member (40) is interference-fitted with the supporting member (10) and the adsorbing member (20), so that the supporting member (10) and the adsorbing member (20) are sealed and connected.

9. The adsorption assembly according to any one of claims 1 to 4, characterized in that: It also includes a connecting member (50) connected to the supporting member (10), wherein the connecting member (50) is used to connect the supporting member (10) and the hollow platform.

10. A lamination device, characterized in that: It comprises a lamination table and an adsorption assembly as claimed in any one of claims 1 to 9, wherein the adsorption assembly is used for adsorbing the pole piece to the lamination table.

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