Battery piece string welding device

Abstract

The application discloses a battery piece string welding device and belongs to the technical field of battery processing. The battery piece string welding device comprises a welding device, a welding strip mounting mechanism located upstream of the welding device, and a welding strip connecting structure installed between the welding strip mounting mechanism and the welding device. A clamping assembly of the welding strip connecting structure forms a first cavity for accommodating a first welding strip and a second cavity for accommodating a second welding strip, and a part of the first cavity and the second cavity is arranged in an overlapping manner. In the technical scheme, the welding strip connecting structure is arranged between the welding strip mounting mechanism and the welding device, so that the downtime of the battery piece string welding device can be reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This application belongs to the field of battery processing technology, and in particular relates to a battery cell stringing device. Background Technology

[0002] In the battery manufacturing process, adjacent battery cells are typically welded together using a cell stringing device to form a battery string, which is then assembled into photovoltaic modules. In related technologies, the welding ribbon in the cell stringing device is frequently replaced. This is mainly achieved by manually welding the tail of the upper welding ribbon to the head of the lower welding ribbon to solve the downtime problem caused by re-threading the welding ribbon. However, manual welding is affected by many factors, resulting in significant variations in welding quality and a low success rate, leading to frequent downtime and impacting production efficiency. Therefore, there is room for improvement. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the related art. To this end, this application proposes a battery cell stringing apparatus that can reduce the downtime of the battery cell stringing apparatus.

[0004] In the first aspect, this application provides a battery cell stringing apparatus.

[0005] The battery cell stringing device includes:

[0006] Welding equipment;

[0007] A welding strip mounting mechanism is located upstream of the welding equipment;

[0008] A welding strip connection structure is installed between the welding strip mounting mechanism and the welding equipment;

[0009] The clamping assembly of the welding strip connection structure forms a first cavity for accommodating a first welding strip and a second cavity for accommodating a second welding strip, wherein a portion of the first cavity and the second cavity overlap.

[0010] In the above technical solution, by setting the welding strip connection structure between the welding strip installation mechanism and the welding equipment, downtime can be reduced, thereby improving production efficiency.

[0011] According to one embodiment of this application, the clamping assembly includes a first tooling fixture and a second tooling fixture, the first tooling fixture and the second tooling fixture are spaced apart along a first direction to form a first cavity and a second cavity, and the orthographic projections of the first tooling fixture and the second tooling fixture along the first direction coincide.

[0012] In the above technical solution, the first tooling fixture and the second tooling fixture are spaced apart along the first direction to form the first cavity and the second cavity, which can clamp the first welding strip and the second welding strip, fix the contact area of ​​the first welding strip and the second welding strip, and facilitate the continuation of the first welding strip and the second welding strip.

[0013] According to one embodiment of this application, the welding strip connection structure further includes a fixed bracket and a driving mechanism, the clamping assembly is mounted on the side of the fixed bracket facing the driving mechanism, and the driving mechanism is directly opposite the clamping assembly along a second direction.

[0014] In the above technical solution, the driving mechanism is directly opposite the clamping component along the second direction, which helps to perform the splicing operation of the solder strip.

[0015] According to one embodiment of this application, the orthographic projection of the clamping assembly along the second direction at least partially coincides with the orthographic projection of the fixing bracket along the second direction.

[0016] In the above technical solution, the clamping component is movably mounted on the fixed bracket, which helps to clamp the welding strip.

[0017] According to one embodiment of this application, both the first cavity and the second cavity have an opening at one end away from the overlapping region along the second direction.

[0018] In the above technical solution, both the first cavity and the second cavity have an opening at one end away from the overlapping area along the second direction, so as to facilitate the movement of the first welding strip and the second welding strip.

[0019] According to one embodiment of this application, the clamping assembly is provided with welding holes for the drive mechanism to pass through.

[0020] In the above technical solution, the welding holes on the clamping assembly are mainly used to avoid the driving mechanism.

[0021] According to one embodiment of this application, the driving mechanism includes a pressure pin soldering iron and a lifting cylinder. The pressure pin soldering iron is located on the side of the lifting cylinder close to the clamping assembly, and the pressure pin soldering iron is power-coupled to the output end of the lifting cylinder. The lifting cylinder is used to drive the pressure pin soldering iron to move along the second direction between a first position and a second position.

[0022] In the above technical solution, the lifting cylinder drives the soldering iron to move along the second direction between the first position and the second position, which can realize the switching of the solder strip connection structure between the power-on state and the standby state.

[0023] According to one embodiment of this application, when the pressure pin soldering iron is in the second position, the pressure pin soldering iron penetrates at least a portion of the clamping assembly, and the pressure pin soldering iron welds the first solder strip and the second solder strip.

[0024] In the above technical solution, when the soldering iron is in the second position, the solder strip connection structure is in the power-on state.

[0025] According to one embodiment of this application, the battery cell stringing apparatus further includes a controller for controlling the heating of the soldering iron.

[0026] In the above technical solution, the controller works in coordination with the lifting cylinder. While controlling the heating of the soldering iron, the controller can also flexibly coordinate the movement of the lifting cylinder, which helps the soldering iron and the solder strip maintain the correct contact pressure and position, thereby optimizing the welding quality.

[0027] According to one embodiment of this application, the battery cell stringing apparatus further includes a temperature sensor for detecting the temperature of the soldering iron.

[0028] In the above technical solution, the temperature sensor and the controller work together to form a temperature control system for the soldering iron, which helps to dynamically adjust the heating process and thus improve the soldering quality.

[0029] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0030] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0031] Figure 1 This is a schematic diagram of the structure of the battery cell stringing apparatus provided in the embodiments of this application;

[0032] Figure 2 This is a schematic diagram of the solder strip connection structure provided in the embodiments of this application;

[0033] Figure 3 This is a cross-sectional view of the clamping assembly of the solder strip connection structure provided in the embodiments of this application;

[0034] Figure 4 This is a schematic diagram of the clamping assembly of the solder strip connection structure provided in the embodiments of this application;

[0035] Figure 5This is a schematic diagram of the structure of the solder strip provided in the embodiment of this application.

[0036] Figure label:

[0037] Battery cell stringing device 1;

[0038] 10. Welding strip connection structure;

[0039] Clamping assembly 110, first tooling fixture 111, second tooling fixture 112, first cavity 113, second cavity 114; welding hole 115;

[0040] Fixed bracket 120;

[0041] Drive mechanism 130, soldering iron 131, lifting cylinder 132;

[0042] 20 welding strip mounting mechanism, 30 welding equipment;

[0043] Welding strip 40, first welding strip 410, second welding strip 420;

[0044] First direction X, second direction Y. Detailed Implementation

[0045] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0046] This application aims to address at least one of the technical problems existing in the related art. To this end, this application proposes a battery cell stringing apparatus that can reduce the downtime of the battery cell stringing apparatus.

[0047] The following is for reference. Figures 1-5 A battery cell stringing apparatus 1 according to an embodiment of this application is described.

[0048] like Figure 1 As shown, the battery cell string welding device 1 includes a welding device 30, a welding strip mounting mechanism 20, and a welding strip connecting structure 10, wherein the welding strip mounting mechanism 20 is located upstream of the welding device 30, and the welding strip connecting structure 10 is installed between the welding strip mounting mechanism 20 and the welding device 30.

[0049] During the battery manufacturing process, adjacent battery cells are welded together by a battery cell stringing device 1. The battery cell stringing device 1 can connect multiple battery cells together by welding strips 40 to form a battery string, so that they can be assembled into photovoltaic modules later.

[0050] In this embodiment, the battery cell stringing device 1 may include a welding device 30. The welding device 30 is mainly used to string the battery cells through the welding strip 40. In actual operation, the welding device 30 arranges the battery cells in an appropriate position and welds the welding strip 40 to the pads of the battery cells by heating to form a battery string.

[0051] For example, welding equipment 30 can be a string welding machine.

[0052] like Figure 1 As shown, the battery cell string welding device 1 may also include a welding strip mounting mechanism 20, which is located upstream of the welding equipment 30. The welding strip mounting mechanism 20 is mainly used to provide welding strip 40. The welding strip mounting mechanism 20 may include multiple spools, and the welding strip 40 is wound on the spools. In actual operation, the welding strip mounting mechanism 20 unwinds the welding strip 40 wound on the spools, thereby releasing the welding strip 40.

[0053] For example, the solder strip 40 can be a copper strip with a tin-plated surface.

[0054] like Figure 1 and Figure 2 As shown, the battery cell string welding device 1 may also include a welding strip connection structure 10. The welding strip connection structure 10 is installed between the welding strip mounting mechanism 20 and the welding equipment 30. The welding strip connection structure 10 is mainly used to connect the tail of the used first welding strip 410 to the head of the unused second welding strip 420 to realize the continuation of the welding strip 40. After the continuation is completed, the welding equipment 30 continues the welding operation.

[0055] During the replacement of the welding strip 40, the used welding strip 40 is defined as the first welding strip 410, and the unused welding strip 40 is defined as the second welding strip 420. The second welding strip 420 arrives at the welding strip installation mechanism 20 after the feeding process, and is then transferred from the welding strip installation mechanism 20 to the welding strip connection structure 10. Then, it is welded to the first welding strip 410 in the welding strip connection structure 10, thereby realizing the continuation of the welding strip 40, which helps to reduce downtime and improve production efficiency. The connected first welding strip 410 and second welding strip 420 are transferred from the welding strip connection structure 10 to the welding equipment 30.

[0056] In addition, such as Figure 4 and Figure 5 As shown, the clamping assembly 110 of the solder strip connection structure 10 forms a first cavity 113 for accommodating the first solder strip 410 and a second cavity 114 for accommodating the second solder strip 420, with a portion of the first cavity 113 and the second cavity 114 overlapping.

[0057] In actual operation, the clamping assembly 110 clamps the first welding strip 410 and the second welding strip 420. The tail of the first welding strip 410 is located in the first cavity 113, and the head of the second welding strip 420 is located in the second cavity 114. The extending direction of the first cavity 113 is the same as the moving direction of the first welding strip 410. The first cavity 113 has an opening at one end away from the second cavity 114 along its extending direction, allowing the first welding strip 410 to pass through. The extending direction of the second cavity 114 is the same as the moving direction of the second welding strip 410. The two welding strips 420 move in the same direction. The second cavity 114 has an opening at one end away from the first cavity 113 along the extension direction, through which the second welding strip 420 can pass. A portion of the first cavity 113 and the second cavity 114 overlap along the first direction X and are connected in the overlapping area. The first welding strip 410 in the first cavity 113 and the second welding strip 420 in the second cavity 114 contact each other in the overlapping area of ​​the first cavity 113 and the second cavity 114 and are welded together.

[0058] It is understood that the clamping assembly 110 of the solder strip connection structure 10 forms a first cavity 113 for accommodating the first solder strip 410 and a second cavity 114 for accommodating the second solder strip 420, and a portion of the first cavity 113 and the second cavity 114 are overlapped, which can limit the first solder strip 410 and the second solder strip 420 to be connected during the welding preparation stage.

[0059] In the battery manufacturing process, adjacent battery cells are typically welded together using a battery cell stringing device 1 to form a battery string for subsequent assembly into photovoltaic modules. In related technologies, the welding ribbon 40 of the battery cell stringing device 1 is replaced frequently. This is mainly achieved by manually welding the tail of the upper welding ribbon 40 to the head of the lower welding ribbon 40 to solve the downtime problem caused by re-threading the welding ribbon 40. However, manual welding is affected by many factors, resulting in significant variations in welding quality and a low success rate, leading to frequent downtime and impacting production efficiency. Therefore, there is room for improvement.

[0060] This application provides a welding strip connection structure 10 between the welding strip installation mechanism 20 and the welding equipment 30 of the battery cell string welding device 1. The welding strip connection structure 10 can change the traditional manual welding to automatic welding when the welding strip 40 is replaced. Automatic welding can improve the automation level of the production process, reduce human intervention and operation difficulty, thereby improving the stability of welding quality. At the same time, it can reduce the downtime of the production line and thus improve production efficiency.

[0061] According to the battery cell string welding apparatus 1 provided in the embodiments of this application, by setting a welding strip connection structure 10 between the welding strip mounting mechanism 20 and the welding equipment 30, the welding strip connection structure 10 can reduce downtime and thus improve production efficiency.

[0062] In some embodiments, such as Figure 4 As shown, the clamping assembly 110 may include a first tooling fixture 111 and a second tooling fixture 112. The first tooling fixture 111 and the second tooling fixture 112 are spaced apart along the first direction X to form a first cavity 113 and a second cavity 114, and the orthographic projections of the first tooling fixture 111 and the second tooling fixture 112 along the first direction X coincide.

[0063] In this embodiment, the width direction of the clamping assembly 110 is defined as the first direction X. The clamping assembly 110 may include a first tooling fixture 111 and a second tooling fixture 112 spaced apart along the first direction X. A first cavity 113 and a second cavity 114 are formed between the first tooling fixture 111 and the second tooling fixture 112 and are interconnected. The extension direction of the first cavity 113 and the second cavity 114 is the length direction of the clamping assembly 110.

[0064] In addition, such as Figure 2 As shown, the orthographic projections of the first tooling fixture 111 and the second tooling fixture 112 along the first direction X coincide, that is, the lengths of the first tooling fixture 111 and the second tooling fixture 112 along the length direction of the clamping assembly 110 are the same, and the heights of the first tooling fixture 111 and the second tooling fixture 112 along the second direction Y are the same, wherein the second direction Y is the vertical direction.

[0065] It is understood that the first tooling fixture 111 and the second tooling fixture 112 are spaced apart along the first direction X to form a first cavity 113 and a second cavity 114, which can clamp the first welding strip 410 and the second welding strip 420, fix the contact area of ​​the first welding strip 410 and the second welding strip 420, and facilitate the continuation of the first welding strip 410 and the second welding strip 420.

[0066] In some embodiments, such as Figure 2 As shown, the welding strip connection structure 10 may also include a fixed bracket 120 and a drive mechanism 130. The clamping assembly 110 is installed on the side of the fixed bracket 120 facing the drive mechanism 130, and the drive mechanism 130 is directly opposite the clamping assembly 110 along the second direction Y.

[0067] In this embodiment, the drive mechanism 130, the clamping assembly 110, and the fixed bracket 120 are arranged sequentially from top to bottom along the second direction Y. The clamping assembly 110 is mounted on the upper surface of the fixed bracket 120, the drive mechanism 130 is located above the clamping assembly 110, and the orthographic projections of the clamping assembly 110 and the fixed bracket 120 along the second direction Y coincide.

[0068] When the welding strip connection structure 10 is not working, the first welding strip 410 moves horizontally along the length of the clamping assembly 110 on the upper side of the fixed bracket 120. When the welding strip connection structure 10 is working, the tail of the first welding strip 410 and the head of the second welding strip 420 are located at the designated position on the upper side of the fixed bracket 120. The first tooling fixture 111 and the second tooling fixture 112 of the clamping assembly 110 move toward each other until the first tooling fixture 111 and the second tooling fixture 112 form a first cavity 113 for accommodating the first welding strip 410 and a second cavity 114 for accommodating the second welding strip 420. After fixing the welding strip 40, the welding strip 40 is continued by the drive mechanism 130.

[0069] Understandably, the drive mechanism 130 is aligned with the clamping assembly 110 along the second direction Y, which facilitates the splicing operation of the solder ribbon 40.

[0070] In some embodiments, such as Figure 3 As shown, the orthographic projection of the clamping assembly 110 along the second direction Y at least partially coincides with the orthographic projection of the fixing bracket 120 along the second direction Y.

[0071] In this embodiment, the clamping assembly 110 and the fixed bracket 120 are arranged opposite each other along the second direction Y, and the lower surface of the clamping assembly 110 is in contact with the upper surface of the fixed bracket 120. The clamping assembly 110 includes a first tooling fixture 111 and a second tooling fixture 112. The first tooling fixture 111 and the second tooling fixture 112 are spaced apart on the fixed bracket 120 along the first direction X, and the distance between the first tooling fixture 111 and the second tooling fixture 112 is changed by moving along the first direction X in order to clamp the welding strip 40.

[0072] The length of the clamping component 110 is the same as the length of the fixed bracket 120. When the clamping component 110 clamps the solder ribbon 40, the orthographic projection of the clamping component 110 along the second direction Y coincides with the orthographic projection of the fixed bracket 120 along the second direction Y. When the clamping component 110 does not clamp the solder ribbon 40, the orthographic projection of the clamping component 110 along the second direction Y partially coincides with the orthographic projection of the fixed bracket 120 along the second direction Y.

[0073] Understandably, the clamping assembly 110 is movably mounted on the fixed bracket 120 to facilitate the clamping of the solder strip 40.

[0074] In some embodiments, such as Figure 4 As shown, both the first cavity 113 and the second cavity 114 have an opening at one end away from the overlapping area along the second direction Y.

[0075] In this embodiment, the clamping assembly 110 includes a first tooling fixture 111 and a second tooling fixture 112. The first tooling fixture 111 and the second tooling fixture 112 are spaced apart along a first direction X to form a first cavity 113 for accommodating a first welding strip 410 and a second cavity 114 for accommodating a second welding strip 420. The first cavity 113 and the second cavity 114 are arranged to overlap at one end that is close to each other along a second direction Y to form an overlapping area, and the first cavity 113 and the second cavity 114 are connected in the overlapping area.

[0076] In addition, both the first cavity 113 and the second cavity 114 have an opening at one end away from the overlapping area along the second direction Y. The tail of the first welding strip 410 is located in the first cavity 113, and the head of the second welding strip 420 is located in the second cavity 114. The first welding strip 410 and the second welding strip 420 extend outward from the clamping assembly 110 through the openings of the first cavity 113 and the second cavity 114, respectively.

[0077] It is understood that both the first cavity 113 and the second cavity 114 have an opening at one end away from the overlapping area along the second direction Y, so as to facilitate the movement of the first welding strip 410 and the second welding strip 420.

[0078] In some embodiments, such as Figure 3 As shown, the clamping assembly 110 is provided with welding holes 115, which are used for the drive mechanism 130 to pass through.

[0079] In this embodiment, the clamping assembly 110 is provided with a welding hole 115 extending through the second direction Y. One side opening of the welding hole 115 is flush with the upper surface of the clamping assembly 110, and the other side opening of the welding hole 115 is flush with the lower surface of the clamping assembly 110 and the upper surface of the fixing bracket 120.

[0080] In addition, the lower end of the drive mechanism 130 is provided with a pressure pin soldering iron 131 for welding. When the solder strip connection structure 10 is working, the drive mechanism 130 moves toward the clamping assembly 110, and the pressure pin soldering iron 131 passes through the welding hole 115 until the pressure pin soldering iron 131 abuts against the solder strip 40.

[0081] Understandably, the welding holes 115 on the clamping assembly 110 are primarily used to avoid the drive mechanism 130.

[0082] In some embodiments, such as Figure 2 As shown, the drive mechanism 130 may include a pressure pin soldering iron 131 and a lifting cylinder 132. The pressure pin soldering iron 131 is located on the side of the lifting cylinder 132 near the clamping assembly 110, and the pressure pin soldering iron 131 is poweredly coupled to the output end of the lifting cylinder 132. The lifting cylinder 132 is used to drive the pressure pin soldering iron 131 to move along the second direction Y between the first position and the second position.

[0083] In this embodiment, the drive mechanism 130 may include a soldering iron 131 and a lifting cylinder 132. The soldering iron 131 is used to perform soldering operations, and the lifting cylinder 132 is used to drive the soldering iron 131 to move along a specific path. The soldering iron 131 is equipped with a temperature control system. The temperature control system uses a heating element to bring the soldering iron 131 to a set temperature in a short time before soldering.

[0084] In addition, the output end of the lifting cylinder 132 is poweredly coupled to the soldering iron 131. The lifting cylinder 132 drives the soldering iron 131 to move along the second direction Y between the first position and the second position, thereby realizing the operation and standby of the solder strip connection structure 10.

[0085] When the soldering iron 131 is in the first position, the soldering iron 131 is above the clamping assembly 110, and the solder ribbon connection structure 10 is in standby mode. When the soldering iron 131 is in the second position, the soldering iron 131 extends into the welding hole 115 of the clamping assembly 110, and the end of the soldering iron 131 abuts against the solder ribbon 40, and the solder ribbon connection structure 10 is in the power-on state.

[0086] It is understandable that the lifting cylinder 132 drives the pressure pin soldering iron 131 to move along the second direction Y between the first position and the second position, which can realize the switching of the solder strip connection structure 10 between the power-on state and the standby state.

[0087] In some embodiments, when the pressure pin soldering iron 131 is in the second position, the pressure pin soldering iron 131 penetrates at least a portion of the clamping assembly 110, and the pressure pin soldering iron 131 solders the first solder strip 410 and the second solder strip 420.

[0088] In this embodiment, the lifting cylinder 132 drives the pressure pin soldering iron 131 to move between a first position and a second position along the second direction Y. When the pressure pin soldering iron 131 is in the second position, the pressure pin soldering iron 131 extends into the welding hole 115 of the clamping assembly 110, and the end of the pressure pin soldering iron 131 abuts against the solder strip 40. At this time, the pressure pin soldering iron 131 penetrates a portion of the clamping assembly 110 along the second direction Y, but does not completely penetrate the clamping assembly 110.

[0089] Furthermore, when the soldering iron 131 is in the second position, the temperature of the soldering iron 131 reaches the welding temperature, and the soldering iron 131 can weld the first solder strip 410 and the second solder strip 420.

[0090] In some embodiments, the cell stringing apparatus 1 further includes a controller for controlling the heating of the soldering iron 131.

[0091] In this embodiment, when the sensor on the welding equipment 30 detects that the length of the first solder strip 410 is less than a predetermined value, it sends a signal. After receiving the signal from the sensor, the controller controls the heating pin soldering iron 131 to heat up. At this time, the tail of the first solder strip 410 is located at the solder strip connecting structure 10. Then, the head of the second solder strip 420 is transferred to the solder strip connecting structure 10 and the head of the second solder strip 420 is brought into contact with the tail of the first solder strip 410. The gap distance of the clamping assembly 110 is then adjusted so that the clamping assembly 110 clamps the first solder strip 410 and the second solder strip 420. Finally, the heating pin soldering iron 131 is controlled to press down, and the welding of the first solder strip 410 and the second solder strip 420 is completed.

[0092] In addition, the controller works in conjunction with the lifting cylinder 132. While controlling the heating of the soldering iron 131, the controller can also flexibly coordinate the movement of the lifting cylinder 132, which helps the soldering iron 131 and the solder strip 40 maintain the correct contact pressure and position, thereby optimizing the welding quality.

[0093] In some embodiments, the cell stringing apparatus 1 further includes a temperature sensor for detecting the temperature of the soldering iron 131.

[0094] In this embodiment, a temperature sensor may be provided on the soldering iron 131. The temperature sensor is electrically connected to the controller and is used to detect the temperature of the soldering iron 131. After the controller controls the soldering iron 131 to heat up, the temperature sensor transmits a signal to the controller. When the soldering iron 131 reaches the welding temperature, the controller controls the soldering iron 131 to move towards the clamping assembly 110 to perform the welding operation.

[0095] Understandably, by working together with the temperature sensor and controller to form the temperature control system of the pin soldering iron 131, it is possible to achieve dynamic adjustment of the heating process, thereby improving the soldering quality.

[0096] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0097] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0098] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0099] In the description of this application, "multiple" means two or more.

[0100] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0101] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0102] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0103] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery cell stringing apparatus, characterized in that, include: Welding equipment; A welding strip mounting mechanism is located upstream of the welding equipment; A welding strip connection structure is installed between the welding strip mounting mechanism and the welding equipment; The clamping assembly of the welding strip connection structure forms a first cavity for accommodating a first welding strip and a second cavity for accommodating a second welding strip, wherein a portion of the first cavity and the second cavity overlap.

2. The battery cell stringing apparatus according to claim 1, characterized in that, The clamping assembly includes a first tooling fixture and a second tooling fixture, which are spaced apart along a first direction to form a first cavity and a second cavity, and the orthographic projections of the first tooling fixture and the second tooling fixture along the first direction coincide.

3. The battery cell stringing apparatus according to claim 1, characterized in that, The welding strip connection structure further includes a fixed bracket and a driving mechanism. The clamping assembly is installed on the side of the fixed bracket facing the driving mechanism, and the driving mechanism is directly opposite the clamping assembly along the second direction.

4. The battery cell stringing apparatus according to claim 3, characterized in that, The orthographic projection of the clamping assembly along the second direction at least partially coincides with the orthographic projection of the fixing bracket along the second direction.

5. The battery cell stringing apparatus according to claim 3, characterized in that, Both the first cavity and the second cavity have an opening at one end away from the overlapping area along the second direction.

6. The battery cell stringing apparatus according to claim 3, characterized in that, The clamping assembly is provided with welding holes for the drive mechanism to pass through.

7. The battery cell stringing apparatus according to claim 3, characterized in that, The driving mechanism includes a pressure needle soldering iron and a lifting cylinder. The pressure needle soldering iron is located on the side of the lifting cylinder close to the clamping assembly, and the pressure needle soldering iron is power-coupled to the output end of the lifting cylinder. The lifting cylinder is used to drive the pressure needle soldering iron to move along the second direction between a first position and a second position.

8. The battery cell stringing apparatus according to claim 7, characterized in that, When the pressure pin soldering iron is in the second position, the pressure pin soldering iron penetrates at least a portion of the clamping assembly, and the pressure pin soldering iron welds the first solder strip and the second solder strip.

9. The battery cell stringing apparatus according to any one of claims 1-8, characterized in that, The cell stringing device also includes a controller, which is used to control the temperature rise of the welding strip connection structure.

10. The battery cell stringing apparatus according to any one of claims 1-8, characterized in that, The cell stringing apparatus also includes a temperature sensor for detecting the temperature of the solder strip connection structure.

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