Pressing mechanism and battery welding equipment

Abstract

The utility model discloses a hold-down mechanism and battery welding equipment. The hold-down mechanism comprises a base, a pressing mechanism and a clamping mechanism, the top pressing units are arranged in an array mode, each top pressing unit comprises a mounting assembly and a top pressing piece, the mounting assemblies are arranged on the base, air cavities are formed in the mounting assemblies and used for being communicated with an air source, the top pressing pieces are inserted into the air cavities, and the top pressing pieces are arranged on the mounting assemblies. The top pressing piece is in guide fit with the mounting assembly; the jacking and pressing piece is used for being pushed out of the air cavity to be away from an initial position by the air after the air is introduced into the air cavity so as to penetrate through the hollow structure on the supporting platform, and the jacking and pressing piece is further used for being reset to the initial position after the air in the air cavity is exhausted; and the plurality of jacking pieces are used for pressing the same welding wire on the battery on the supporting platform after penetrating through the hollow structure. According to the invention, the welding wire can be tightly attached to the battery piece.

Description

Technical Field

[0001] The present application relates to the technical field of battery welding equipment, and in particular to a clamping mechanism and battery welding equipment. Background Art

[0002] During the manufacturing process of photovoltaic cells, welding wires need to be welded on the cells so as to connect the grid lines on the cells to each other through the welding wires.

[0003] During the welding process, in order to ensure the welding quality between the battery cell and the welding wire, it is necessary to ensure that the battery cell and the welding wire can fit tightly. When the battery cell and the welding wire are welded by light welding, multiple light-transmitting holes need to be opened on the support platform used to support the battery cell so that the light emitted by the curing light source can cure the welding glue point between the battery cell and the welding wire.

[0004] However, there is a problem that since the welding wires are arranged corresponding to the light-transmitting holes, the welding wires will be suspended in the air. The suspended welding wires are prone to drooping and cannot fit tightly with the battery cells, which makes it impossible to directly weld the battery cells and the welding wires. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the related art, the present application provides a clamping mechanism and a battery welding device to solve the problem in the related art that the welding wire cannot fit tightly with the battery cell.

[0006] In order to solve the above technical problems, in a first aspect, the present application provides a clamping mechanism, which comprises:

[0007] Base;

[0008] A pressing unit, wherein a plurality of pressing units are arranged in an array, and the pressing unit comprises a mounting assembly and a pressing piece, wherein the mounting assembly is arranged on the base, and an air cavity is arranged inside the mounting assembly, and the air cavity is used to communicate with an air source, and the pressing piece is inserted into the air cavity, and the pressing piece is matched with the mounting assembly guide;

[0009] The pressing member is used to be pushed away from the initial position outside the air cavity by the gas after the gas is introduced into the air cavity, so as to pass through the hollow structure on the support platform. The pressing member is also used to reset to the initial position after the gas in the air cavity is discharged; multiple pressing members are used to press the same welding wire against the battery on the support platform after passing through the hollow structure.

[0010] In a possible implementation of the first aspect, the mounting assembly includes a mounting seat and a supporting seat connected to each other, the mounting seat is arranged on the base, the air cavity is arranged on the mounting seat, and the pressing member is guided and matched with the mounting seat;

[0011] The support seat is used to pass through the hollow structure to support the battery on the support platform.

[0012] In a possible implementation manner of the first aspect, the pressing member is also guided and cooperated with the support seat.

[0013] In a possible implementation of the first aspect, the support seat is provided with a guide hole for guiding and cooperating with the top pressing member, the support seat has a support surface for contacting with the battery support, and one end opening of the guide hole is provided on the support surface;

[0014] Two limiting grooves extending in the same direction in length are arranged on the support surface, and the two limiting grooves are arranged on both sides of the guide hole in their own length direction. The ends of the two limiting grooves close to the guide hole are connected to the guide hole, and the ends of the two limiting grooves away from the guide hole pass through the support seat, and the two limiting grooves are used for the welding wire extending in the same direction as the length direction of the limiting groove to enter.

[0015] In a possible implementation of the first aspect, a reset elastic member is provided between the mounting assembly and the pressing member, and the reset elastic member is used to drive the pressing member to reset to the initial position through elastic force generated by elastic deformation when the gas in the air cavity is discharged.

[0016] In a possible implementation manner of the first aspect, the pressing unit includes at least two pressing members.

[0017] In a possible implementation manner of the first aspect, the pressing members of the same pressing unit are used to press different welding wires respectively.

[0018] In a possible implementation of the first aspect, a gas channel for communicating with the gas source is provided on the base, and the gas channel is connected to the air cavity in each of the top pressure units, so that the air cavity is indirectly connected to the gas source through the gas channel.

[0019] In a possible implementation manner of the first aspect, the pressing mechanism further includes at least one pressing module, the pressing module includes a plurality of pressing units, and the air cavities of the pressing units in the same pressing module are interconnected.

[0020] In a possible implementation manner of the first aspect, the base is a hollow base.

[0021] In a second aspect, the present application also provides a battery welding device, the battery welding device comprising:

[0022] The clamping mechanism described in any one of the first aspects.

[0023] In a possible implementation of the second aspect, the battery welding device further includes a curing light source, and the curing light source is used to cure the welding glue point between the battery and the welding wire;

[0024] The pressing mechanism is arranged between the battery and the curing light source.

[0025] Compared with the related art, this application has at least the following beneficial effects:

[0026] In the present application, since the pressing mechanism includes a plurality of pressing units arranged in an array, and since the pressing unit includes a mounting assembly and a pressing piece, wherein the pressing piece is inserted into an air cavity in the mounting assembly that is connected to the gas source, and the pressing piece cooperates with the guide of the mounting assembly, the pressing piece is also used to be pushed out of the air cavity away from the initial position by the gas after the gas is introduced into the air cavity, so as to pass through the hollow structure on the support platform, and since the plurality of pressing pieces are used to press the same welding wire against the battery on the support platform after passing through the hollow structure, therefore, when the pressing mechanism in the present application is applied to welding between battery cells and welding wires, The hollow structure on the support platform is a light-transmitting hole on the support platform, and when the gas source introduces gas into the air cavity in the mounting assembly, as the pressure in the air cavity increases, the gas in the air cavity can push the top pressure piece away from the initial position outside the air cavity, so that the top pressure piece passes through the hollow structure on the support platform. In this way, the same welding wire can be pressed against the battery cell on the support platform through multiple top pressure pieces passing through the hollow structure, so that the welding wire can fit tightly with the battery cell, which can avoid the situation where the welding wire cannot fit tightly with the battery cell due to sagging, thereby ensuring normal welding between the battery cell and the welding wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the overall structure of the clamping mechanism provided in an embodiment of the present application;

[0029] Figure 2 A top view of the clamping mechanism provided in an embodiment of the present application;

[0030] Figure 3 A front view of the clamping mechanism provided in an embodiment of the present application;

[0031] Figure 4 for Figure 1 The enlarged view of point A in the middle;

[0032] Figure 5A cross-sectional view of a top pressure unit provided in an embodiment of the present application;

[0033] Figure 6 A schematic diagram of a battery welding device provided in an embodiment of the present application.

[0034] Description of reference numerals:

[0035] 1-base; 11-gas interface;

[0036] 2-pressing unit; 21-mounting assembly; 211-air cavity; 212-mounting seat; 2121-connecting channel; 213-supporting seat; 2131-guide hole; 2132-supporting surface; 2133-limiting groove; 22-pressing member; 221-annular protrusion; 23-resetting elastic member;

[0037] 10-top pressure module;

[0038] 100- Clamping mechanism. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0041] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0042] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0044] As described in the background art of the present application, during the manufacturing process of photovoltaic cells, welding wires need to be welded on the cells so as to connect the grid lines on the cells to each other through the welding wires.

[0045] During the welding process, in order to ensure the welding quality between the battery cell and the welding wire, it is necessary to ensure that the battery cell and the welding wire can fit tightly. When the battery cell and the welding wire are welded by light welding, multiple light-transmitting holes need to be opened on the support platform used to support the battery cell so that the light emitted by the curing light source can cure the welding glue point between the battery cell and the welding wire.

[0046] However, there is a problem that since the welding wires are arranged corresponding to the light-transmitting holes, the welding wires will be suspended in the air. The suspended welding wires are prone to drooping and cannot fit tightly with the battery cells, which makes it impossible to directly weld the battery cells and the welding wires.

[0047] In view of the above-mentioned problems, the present application provides a clamping mechanism to solve the problem in the related art that the welding wire cannot fit tightly with the battery cell.

[0048] The technical solution of the present application will be further described below in conjunction with specific embodiments and drawings:

[0049] like Figure 1 , Figure 2 and Figure 3 As shown, the pressing mechanism 100 includes a base 1 and a pressing unit 2, wherein a plurality of pressing units 2 are arranged in an array, such as Figure 4 and Figure 5 As shown, the top pressing unit 2 includes a mounting assembly 21 and a top pressing member 22. The mounting assembly 21 is arranged on the base 1, and as shown in FIG. Figure 5As shown, an air cavity 211 is provided inside the installation component 21 , and the air cavity 211 is used to communicate with an air source (not shown in the figure). The pressing piece 22 is inserted into the air cavity 211 , and the pressing piece 22 is guided and matched with the installation component 21 .

[0050] The pressing piece 22 is used to be pushed out of the air cavity 211 away from the initial position after gas is introduced into the air cavity 211, so as to pass through the hollow structure on the support platform (not shown in the figure). The pressing piece 22 is also used to reset to the initial position after the gas in the air cavity 211 is discharged; multiple pressing pieces 22 are used to press the same welding wire against the battery on the support platform after passing through the above-mentioned hollow structure.

[0051] In the present application, since the pressing mechanism 100 includes a plurality of pressing units 2 arranged in an array, and since the pressing unit 2 includes a mounting assembly 21 and a pressing piece 22, wherein the pressing piece 22 is inserted into an air cavity 211 in the mounting assembly 21 that is connected to the gas source, and the pressing piece 22 is guided and matched with the mounting assembly 21, the pressing piece 22 is also used to be pushed out of the air cavity 211 away from the initial position by the gas after the gas is introduced into the air cavity 211, so as to pass through the hollow structure on the support platform, and since the plurality of pressing pieces 22 are used to press the same welding wire to the battery on the support platform after passing through the hollow structure, therefore, when the pressing mechanism 100 in the present application is applied to battery cells and welding wires, When welding between wires, the hollow structure on the supporting platform is a light-transmitting hole on the supporting platform, and when the gas source introduces gas into the air cavity 211 in the mounting assembly 21, as the pressure in the air cavity 211 increases, the gas in the air cavity 211 can push the top pressure piece 22 away from the initial position to the outside of the air cavity, so that the top pressure piece 22 passes through the hollow structure on the supporting platform. In this way, the same welding wire can be pressed against the battery cell on the supporting platform through multiple top pressure pieces 22 passing through the hollow structure, so that the welding wire can fit tightly with the battery cell, which can avoid the situation where the welding wire cannot fit tightly with the battery cell due to sagging, thereby ensuring normal welding between the battery cell and the welding wire.

[0052] In addition, since the top pressure piece 22 is used to reset to the initial position after the gas in the air cavity 211 is discharged, when welding is completed, the pressure in the air cavity 211 can be reduced by discharging the gas in the air cavity 211, and the top pressure piece 22 can be reset to the initial position to avoid the top pressure piece 22 affecting the placement and removal of the battery cell on the supporting platform, and it is also convenient to prepare for the next welding between the battery cell and the welding wire.

[0053] Regarding the top pressure piece 22, in the embodiment of the present application, the top pressure piece 22 can be a pressure needle, a top pressure block or a top pressure plate, etc. The structural type of the top pressure piece 22 is relatively flexible. Specifically, it can be selected according to actual usage requirements. The embodiment of the present application does not make specific limitations on this.

[0054] Regarding the hollow structure, in the embodiment of the present application, the hollow structure may include structures such as holes and notches. The structural form of the hollow structure is flexible. Specifically, it can be set according to actual usage requirements. The embodiment of the present application does not make specific limitations on this.

[0055] For the installation component 21, further, as Figure 4 and Figure 5 As shown, the mounting assembly 21 includes a mounting seat 212 and a supporting seat 213 connected to each other. The mounting seat 212 is arranged on the base 1 , the air cavity 211 is arranged on the mounting seat 212 , and the pressing piece 22 is guided and matched with the mounting seat 212 .

[0056] The support seat 213 is used to pass through the hollow structure to support the battery on the support platform.

[0057] With such arrangement, on the one hand, the installation seat 212 facilitates the installation of the air cavity 211 on the installation component 21, and also facilitates the guiding arrangement of the top pressure piece 22 on the installation component 21; on the other hand, the battery on the support platform is supported by the support seat 213, which not only supports the battery more stably, but also supports the battery stably on the clamping mechanism 100 through the support seats 213 of each top pressure unit, which is more conducive to making the welding wire fit tightly with the battery cell through the top pressure of each top pressure piece 22.

[0058] In other embodiments, the mounting assembly 21 may only include the mounting seat 212, that is, the mounting assembly 21 does not support the battery on the supporting platform. This arrangement can simplify the structure of the mounting assembly 21 and facilitate the processing of the mounting assembly 21.

[0059] Furthermore, if Figure 5 As shown, the pressing member 22 is also guided and matched with the supporting seat 213 .

[0060] Such an arrangement enables the mounting seat 212 and the supporting seat 213 to jointly guide the pressing member 22 , thereby enabling the movement of the pressing member 22 to be more stable, thereby enabling the welding wire to be pressed more accurately.

[0061] Furthermore, if Figure 4 and Figure 5 As shown, the support seat 213 is provided with a guide hole 2131 for guiding and cooperating with the top pressing member 22 , and the support seat 213 has a support surface 2132 for contacting with the battery support, and one end opening of the guide hole 2131 is provided on the support surface 2132 .

[0062] like Figure 4 and Figure 5 As shown, the support surface 2132 is provided with two length directions ( Figure 4The two limiting grooves 2133 are respectively arranged on both sides of the guide hole 2131 in the length direction thereof, the ends of the two limiting grooves 2133 close to the guide hole 2131 are connected to the guide hole 2131, and the ends of the two limiting grooves 2133 away from the guide hole 2131 pass through the support seat 213, and the two limiting grooves 2133 are both for the welding wire extending in the same direction as the length direction of the limiting grooves 2133 to enter.

[0063] With such arrangement, on the one hand, the support seat 213 is guided and matched with the top pressing piece 22 through the guide hole 2131, which can increase the guiding matching area between the support seat 213 and the top pressing piece 22, and thus can guide the top pressing piece 22 more stably; on the other hand, when the support surface 2132 contacts the battery support, since the welding wire will enter the two limiting grooves 2133 on the support surface 2132, the welding wire can be limited by the two limiting grooves 2133, and since the two limiting grooves 2133 are arranged on both sides of the guide hole 2131 in their own length direction, and the ends of the two limiting grooves 2133 close to the guide hole 2131 are both aligned with the guide hole 2131, the two limiting grooves 2133 are used to limit the welding wire, so that the welding wire in the two limiting grooves 2133 can be ensured to pass through the guide hole 2131 along the length direction of the limiting grooves 2133, thereby further ensuring that the top pressing piece 22 guided and assembled in the guide hole 2131 can accurately press the welding wire.

[0064] For the top pressure unit 2, further, as Figure 4 and Figure 5 As shown, a reset elastic member 23 is provided between the mounting assembly 21 and the pressing member 22 . The reset elastic member 23 is used to drive the pressing member 22 to reset to the initial position through the elastic force generated by elastic deformation when the gas in the air cavity 211 is discharged.

[0065] With such arrangement, the elastic force of the resetting elastic member 23 can ensure that the pressing member 22 is normally reset to the initial position, which helps to avoid the situation where the pressing member 22 cannot be reset to the initial position.

[0066] Regarding the arrangement of the resetting elastic member 23 between the mounting assembly 21 and the pressing member 22, in a preferred embodiment, as shown in FIG. Figure 4 and Figure 5 As shown, the reset elastic member 23 is arranged between the support seat 213 and the top pressure member 22. Specifically, the circumferential outer side of the top pressure member 22 is arranged on the annular protrusion 221. The reset elastic member 23 is arranged between the support seat 213 and the annular protrusion 221 by abutting between the support seat 213 and the annular protrusion 221. In this case, the reset elastic member 23 can be a compression spring, an elastic rubber member, etc.

[0067] The reset elastic member 23 is arranged between the support seat 213 and the top pressure member 22. Since the reset elastic member 23 can be a compression spring, an elastic rubber member, etc., and since the compression spring, the elastic rubber member, etc. are easier to install, such an arrangement is conducive to facilitating the installation of the reset elastic member 23 between the mounting assembly 21 and the top pressure member 22.

[0068] Regarding the arrangement of the reset elastic member 23 between the mounting assembly 21 and the top pressing member 22, in another embodiment, the reset elastic member 23 is arranged between the mounting seat 212 and the top pressing member 22, specifically, the reset elastic member 23 is connected between the mounting seat 212 and the annular protrusion 221 of the top pressing member 22, in which case, the reset elastic member 23 is a tension spring. In such an arrangement, since the reset elastic member 23 is a tension spring, and since the tension spring can provide a stable elastic tension, the tension spring can further ensure that the top pressing member 22 is normally reset to the initial position.

[0069] For the pressing member 22 in the pressing unit 2, further, as Figure 5 As shown, the pressing unit 2 includes at least two pressing members 22 .

[0070] By increasing the number of pressing members 22 in the pressing unit 2, the number of pressing members 22 in the clamping mechanism 100 can be further increased, and then the pressing of the welding wire by a larger number of pressing members 22 is helpful to further facilitate the close fitting between the welding wire and the battery.

[0071] In a preferred embodiment, the pressing unit 2 includes two pressing members 22. This arrangement not only further increases the number of pressing members 22 in the clamping mechanism 100, but also facilitates the arrangement of the pressing members 22 on the mounting assembly 21 by increasing the number of pressing members 22 in the pressing unit 2.

[0072] In other embodiments, the pressing unit 2 may further include one, three, four or more pressing parts 22. The number of pressing parts 22 in the same pressing unit 2 is flexibly set. Specifically, it can be set according to actual usage requirements, and the embodiments of the present application will not elaborate on this.

[0073] Furthermore, each pressing member 22 of the same pressing unit 2 is used to press different welding wires respectively.

[0074] With such arrangement, one pressing unit 2 can press multiple different welding wires, thereby enabling the clamping mechanism 100 to press a larger number of welding wires. This not only enables the clamping mechanism 100 to be conveniently used in welding operations with a smaller number of welding wires, but more importantly, it also enables the clamping mechanism 100 to be conveniently used in welding operations with a larger number of welding wires, which is beneficial to enhancing the applicability of the clamping mechanism 100.

[0075] In other embodiments, each pressing member 22 of the same pressing unit 2 is used to press the same welding wire. This arrangement can increase the number of pressing members 22 pressing the same welding wire, that is, can increase the pressing density of the same welding wire, which is conducive to further making the welding wire and the battery fit tightly.

[0076] For the base 1, further, a gas channel (not shown in the figure) for communicating with the gas source is provided on the base 1, and the gas channel is connected with the air cavity 211 in each top pressure unit 2, so that the air cavity 211 is indirectly connected with the gas source through the gas channel.

[0077] Since each of the top pressure units 2 is arranged on the base 1, the air cavity 211 in each of the top pressure units 2 is connected to the gas source through the gas channel on the base 1, so that there is no need to set a directly connected gas pipeline between each of the top pressure units 2 and the gas source. Only a directly connected gas pipeline needs to be set between the base 1 and the gas source. This helps to reduce the number of gas pipelines, and thus not only facilitates the connection between the air cavity 211 in each of the top pressure units 2 and the gas source, but also the reduction in the number of gas pipelines is also conducive to reducing manufacturing costs.

[0078] In a preferred embodiment, Figure 1 and Figure 2 As shown, a gas interface 11 connected to the gas channel is provided on the base 1, and the gas interface 11 is used to connect to a gas pipeline connected to a gas source. In this way, the connection and communication between the gas channel and the gas pipeline are facilitated through the gas interface 11.

[0079] like Figure 5 As shown, the mounting seat 212 is provided with a connecting channel 2121 communicating with the air cavity 211, and the connecting channel 2121 is communicated with the gas channel on the base 1, so that the connection between the air cavity 211 and the gas channel on the base 1 can be realized through the connecting channel 2121. In addition, through the connecting channel 2121 and the gas channel on the base 1, not only can gas be introduced into the air cavity 211, but also the gas in the air cavity 211 can be discharged from the air cavity 211. Through the connecting channel 2121, not only the communication between the air cavity 211 and the gas channel on the base 1 is facilitated, but also the introduction of gas into the air cavity 211 and the discharge of gas in the air cavity 211 are facilitated.

[0080] Furthermore, if Figure 1 , Figure 2 and Figure 3 As shown, the pressing mechanism 100 further includes at least one pressing module 10 , and the pressing module 10 includes a plurality of pressing units 2 , and the air cavities 211 of the pressing units 2 in the same pressing module 10 are interconnected.

[0081] With such arrangement, in the same pressing module 10, the connection between the air cavities 211 of all pressing units 2 and the gas channel can be achieved by connecting the air cavities 211 of a smaller number of pressing units 2 with the gas channel on the base 1. There is no need for the air cavities 211 of all pressing units 2 to be connected with the gas channel respectively, which simplifies the connection setting between the air cavities 211 of all pressing units 2 and the gas channel and facilitates the connection between the air cavities 211 of all pressing units 2 and the gas channel.

[0082] As for the base 1, further, the base 1 is a hollow base.

[0083] Setting the base 1 as a hollow base is not only helpful to reduce the weight of the base 1, but also helps to reduce the interference of the base 1 on the curing light source to a certain extent when the welding glue points between the welding wire and the battery are cured by the curing light source.

[0084] The present application also provides a battery welding device, such as Figure 6 As shown, the battery welding device includes a clamping mechanism 100, which has the same structure as any of the clamping mechanisms 100 in the above embodiments and can bring the same or similar beneficial effects. For details, please refer to the description in the above embodiments, which will not be repeated in this embodiment.

[0085] In the present application, when the clamping mechanism 100 is applied to the welding between the battery cell and the welding wire, the hollow structure on the supporting platform is the light-transmitting hole on the supporting platform, and when the gas source introduces gas into the air cavity 211 in the mounting assembly 21, as the pressure in the air cavity 211 increases, the gas in the air cavity 211 can push the top pressure piece 22 away from the initial position outside the air cavity, so that the top pressure piece 22 passes through the hollow structure on the supporting platform. In this way, the same welding wire can be pressed against the battery cell on the supporting platform through multiple top pressure pieces 22 passing through the hollow structure, so that the welding wire can fit tightly with the battery cell, and the situation where the welding wire cannot fit tightly with the battery cell due to sagging can be avoided, thereby ensuring normal welding between the battery cell and the welding wire.

[0086] The battery welding equipment also includes a curing light source (not shown), which is used to cure the welding glue points between the battery and the welding wire. The clamping mechanism 100 is arranged between the battery and the curing light source.

[0087] Such an arrangement optimizes the arrangement relationship among the battery, the curing light source and the clamping mechanism 100 , which not only facilitates the arrangement of the clamping mechanism 100 , but also ensures the pressing effect of the clamping mechanism 100 on the welding wire.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A clamping mechanism, characterized in that: include: Base (1); A pressing unit (2), wherein a plurality of pressing units (2) are arranged in an array, wherein the pressing unit (2) comprises a mounting assembly (21) and a pressing member (22), wherein the mounting assembly (21) is arranged on the base (1), and an air cavity (211) is arranged inside the mounting assembly (21), wherein the air cavity (211) is used to communicate with an air source, and the pressing member (22) is inserted into the air cavity (211), and the pressing member (22) is guided and matched with the mounting assembly (21); The pressing member (22) is used to be pushed out of the air cavity (211) away from the initial position by the gas after the gas is introduced into the air cavity (211) so as to pass through the hollow structure on the support platform. The pressing member (22) is also used to be reset to the initial position after the gas in the air cavity (211) is discharged. A plurality of pressing members (22) are used to press the same welding wire against the battery on the support platform after passing through the hollow structure.

2. The clamping mechanism according to claim 1, characterized in that: The mounting assembly (21) comprises a mounting seat (212) and a supporting seat (213) connected to each other, the mounting seat (212) being arranged on the base (1), the air cavity (211) being arranged on the mounting seat (212), and the pressing member (22) being guided and matched with the mounting seat (212); The support seat (213) is used to pass through the hollow structure to support the battery on the support platform.

3. The clamping mechanism according to claim 2, characterized in that: The pressing member (22) is also guided and matched with the supporting seat (213).

4. The clamping mechanism according to claim 3, characterized in that: The support seat (213) is provided with a guide hole (2131) for guiding and cooperating with the top pressure piece (22); the support seat (213) has a support surface (2132) for contacting with the battery support; one end opening of the guide hole (2131) is provided on the support surface (2132); The support surface (2132) is provided with two limiting grooves (2133) extending in the same direction in length, and the two limiting grooves (2133) are arranged on both sides of the guide hole (2131) in their own length direction, and the ends of the two limiting grooves (2133) close to the guide hole (2131) are connected to the guide hole (2131), and the ends of the two limiting grooves (2133) away from the guide hole (2131) pass through the support seat (213), and the two limiting grooves (2133) are both for the welding wire extending in the same direction as the length direction of the limiting groove (2133) to enter.

5. The clamping mechanism according to any one of claims 1 to 4, characterized in that: A resetting elastic member (23) is provided between the mounting assembly (21) and the pressing member (22), and the resetting elastic member (23) is used to drive the pressing member (22) to return to the initial position through elastic force generated by elastic deformation when the gas in the air cavity (211) is discharged.

6. The clamping mechanism according to any one of claims 1 to 4, characterized in that: The pressing unit (2) comprises at least two pressing members (22).

7. The clamping mechanism according to claim 6, characterized in that: The pressing members (22) of the same pressing unit (2) are used to press different welding wires respectively.

8. The clamping mechanism according to any one of claims 1 to 4, characterized in that: The base (1) is provided with a gas channel for communicating with the gas source, and the gas channel is in communication with the gas cavity (211) in each of the top pressure units (2), so that the gas cavity (211) is indirectly connected with the gas source through the gas channel.

9. The clamping mechanism according to claim 8, characterized in that: The pressing mechanism (100) further comprises at least one pressing module (10), wherein the pressing module (10) comprises a plurality of pressing units (2), and the air cavities (211) of the pressing units (2) in the same pressing module (10) are interconnected.

10. The clamping mechanism according to any one of claims 1 to 4, characterized in that: The base (1) is a hollow base.

11. A battery welding device, characterized in that: include: The clamping mechanism (100) according to any one of claims 1 to 10.

12. The battery welding device according to claim 11, characterized in that: The battery welding equipment also includes a curing light source, and the curing light source is used to cure the welding glue point between the battery and the welding wire; The pressing mechanism (100) is arranged between the battery and the curing light source.

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