Carrying device and stringer

Abstract

The utility model provides a kind of bearing device and series welding machine, bearing device is used to bear battery piece group and solder strip group, including bearing assembly, flow guide part and air extraction power source, bearing assembly includes multiple adsorption holes;At least part of the flow guide part is arranged in the bearing assembly and is communicated with each adsorption hole, to export the airflow in each adsorption hole to the outside of the bearing assembly by the flow guide part, to make the negative pressure in each adsorption hole and the battery piece group is adsorbed to the bearing assembly;The air outlet end of the flow guide part is communicated with the air extraction power source, and the air extraction power source removes the airflow in each adsorption hole by flow guide part.The utility model is provided with adsorption hole on bearing assembly, and the air in each adsorption hole is extracted by flow guide part, forms local low pressure area, to generate sufficient adsorption force to fix battery piece, can ensure the accuracy of the position of battery piece in high-temperature welding process, improve welding quality and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module production technology, and more specifically, to a support device and a string welding machine. Background Technology

[0002] In the manufacturing process of photovoltaic modules, the assembly of cell strings is a key technical step. A cell string is formed by connecting cell groups and solder ribbons in series. Adjacent cells within a cell group are electrically connected by solder ribbons. Generally, a cell string conveyor receives the solder ribbons and cell groups required for a cell string, and then transports them to the welding station for welding to form the cell string. During this process, to ensure that the cell groups and solder ribbons are in accurate relative positions after moving to the welding station, the cell groups need to be fixed to the cell string conveyor, ensuring that the conveying surfaces of the cell groups and the conveyor remain relatively stationary as the cell groups move with the conveyor.

[0003] In existing technologies, rubber chucks embedded in the conveying surface are typically used to adsorb the solar cells onto the conveying surface. However, when the solar cells and welding strips are welded by heating them to over 200°C, the rubber chucks are also heated, which causes them to deform. This not only affects the stability of the rubber chucks in adsorbing the solar cells, but also requires frequent replacement of the chucks, thereby reducing the service life of the rubber chucks and the production efficiency of photovoltaic modules. Utility Model Content

[0004] The main objective of this invention is to provide a support device to solve the problem in existing battery cell support devices where, when high-temperature welding of battery cells and welding strips is used, the rubber suction cup used to fix the battery cells causes deformation of the rubber suction cup, resulting in unstable fixing of the battery cells.

[0005] To achieve the above objectives, according to one aspect of the present invention, a support device is provided, the support device comprising:

[0006] A support component, the support component including a plurality of adsorption holes;

[0007] A flow guide is provided, at least part of which is disposed within the support assembly and communicates with each of the adsorption holes, so as to guide the airflow in each of the adsorption holes to the outside of the support assembly, thereby generating a negative pressure in each of the adsorption holes to adsorb the battery pack onto the support assembly.

[0008] An air extraction power source is connected to the air outlet of the guide section. The air extraction power source draws air out of each adsorption hole through the guide section. By extracting air from each adsorption hole through the guide section, a local low-pressure zone is formed, thereby generating sufficient adsorption force to fix the battery cell. This ensures the accuracy of the battery cell's position during high-temperature welding, improving welding quality and production efficiency.

[0009] Furthermore, the flow guide includes a converging channel, and the supporting component includes:

[0010] A first support member, wherein a plurality of the adsorption holes are disposed on the first support member;

[0011] The second support member is connected to the first support member. The converging flow channel is disposed within the second support member and extends along its length. The converging flow channel is respectively disposed opposite to and in communication with each of the adsorption holes. The airflow in each adsorption hole is discharged after being converged through the converging flow channel. The design of the converging flow channel ensures that each adsorption hole on the support assembly receives a uniform and stable airflow. Even when a large number of adsorption holes are distributed on the support plate, the suction power source can act more effectively on each adsorption hole, forming a uniform and stable negative pressure, ensuring that all adsorption holes simultaneously possess sufficient adsorption force.

[0012] Furthermore, the flow guide further includes a flow channel assembly, and the second support member includes:

[0013] The first plate body, the first support member is embedded in the first plate body and connected to the first plate body, the flow channel group is disposed in the first plate body, and the flow channel group is respectively connected to multiple adsorption holes;

[0014] The second plate is disposed below the first plate, and the confluence channel is disposed within the second plate. The channel group is connected to the confluence channel so that the airflow in each of the adsorption holes flows through the channel group and then into the confluence channel. By connecting multiple adsorption holes respectively through the channel group, it can be ensured that each adsorption hole can receive independent and stable airflow control.

[0015] The flow guide includes:

[0016] A flow guide channel is disposed on the bottom surface of the first support member. The flow guide channel is connected to each of the adsorption holes and the flow channel group respectively. The airflow in each of the adsorption holes is guided to the flow channel group through the flow guide channel and then flows into the converging flow channel.

[0017] The diversion channel includes interconnected branch channel sections and main channel sections;

[0018] The system comprises multiple branch flow channels, each extending along the width of the first support member. Each branch flow channel connects to one or more of the adsorption holes. The main flow channel extends along the length of the first support member. Airflow from each adsorption hole is guided by the branch flow channels and flows into the main flow channel, then flows into the confluence flow channel through the flow channel assembly. The design of the guiding flow channels ensures that the airflow drawn from the adsorption holes is evenly distributed across the flow channel assembly, avoiding uneven distribution of airflow within the channels and reducing turbulence. By setting multiple branch flow channels extending along the width direction, each branch flow channel is responsible for collecting and guiding the airflow from the adsorption holes within its corresponding area, and guiding it to converge into the main flow channel.

[0019] Furthermore, the flow channel assembly includes multiple guide holes, which are spaced apart along the length of the first plate. The main flow channel is disposed opposite to and connected to each of the guide holes, and the airflow in the main flow channel flows into the converging flow channel through each of the guide holes. The arrangement of multiple guide holes can more effectively converge the airflow from the main flow channel, ensuring that the airflow flows into the converging flow channel quickly and smoothly.

[0020] Furthermore, the flow channel group comprises multiple groups, which are spaced apart along the width direction of the first plate. The main flow channel segment comprises multiple segments, each corresponding to one of the flow channel groups. This design of multiple flow channel groups and multiple main flow channel segments ensures more uniform airflow extraction from each adsorption hole along the width direction of the support plate. Each main flow channel segment is responsible for the airflow convergence of only one flow channel group, avoiding excessive concentration of airflow in a single long main flow channel segment.

[0021] Furthermore, the supporting device also includes:

[0022] A heating element, disposed within the first plate, is used to heat the first support member. The heating element avoids the flow channel assembly. Placing the heating element to the side of the flow channel assembly ensures that the heat from the heating element is directly and evenly transferred to the first support member, while simultaneously preventing interference between the heating element and the flow channel assembly, thus avoiding mutual influence.

[0023] Furthermore, the flow guide also includes two suction pipes; the two suction pipes are respectively disposed at both ends along the length of the bottom of the second support member, and both suction pipes are connected to the confluence channel. The suction pipe of the suction power source is simultaneously connected to both suction pipes. By providing suction pipes on the second support member, airflow can be directly extracted from the confluence channel. The two suction pipes are symmetrically arranged, simultaneously removing air from the adsorption holes, ensuring that each adsorption hole has sufficient adsorption force.

[0024] Furthermore, the second support member is provided with a mounting groove, and the first support member is embedded in the mounting groove;

[0025] A first sealing component is also provided between the first carrier and the second carrier, and the first sealing component is respectively in contact with the bottom surface of the first carrier and the mounting groove. The first sealing component enhances the sealing performance between the first carrier and the second carrier, effectively preventing airflow from leaking from the gaps in the carrier components during the adsorption process, and ensuring the suction efficiency of the adsorption hole and the stable negative pressure environment of the carrier plate.

[0026] Furthermore, the support component is provided with a protruding body, which protrudes relative to the surface of the support component, and the opening of the adsorption hole is disposed on the protruding body; wherein, there are multiple protruding bodies, and multiple protruding bodies are disposed in a one-to-one correspondence with multiple adsorption holes. Due to the protruding characteristic of the protruding body, it isolates the possibility of contact between the adsorption hole and the solder ribbon to a certain extent, thereby reducing the risk of solder residue generated by the solder ribbon during high-temperature soldering process remaining around the adsorption hole.

[0027] Furthermore, the support device also includes a gasket disposed on the surface of the support component. The gasket has clearance holes, through which the protruding body protrudes. There are multiple clearance holes, each corresponding to a protruding body. The gasket provides a layer of protection for the battery cell, especially during the bending and welding of the solder strip, preventing potential damage to the battery cell from direct contact with the first support component.

[0028] Furthermore, the plurality of adsorption holes include multiple rows of end holes and multiple rows of middle holes arranged sequentially along the length direction of the support component, wherein:

[0029] The distance between two adjacent end holes along the length direction of the bearing component is A;

[0030] The distance between adjacent end holes and middle holes along the length direction of the bearing component is B;

[0031] The distance between two adjacent central holes along the length of the bearing component is C;

[0032] A <B<C。

[0033] By optimizing the arrangement of the adsorption holes, compared with the method of uniformly distributing the adsorption holes on the support component, this application reduces the number of adsorption holes in the middle part of the support component, thereby reducing the power requirement of the air pumping power source while ensuring the adsorption force of the adsorption holes on the battery cells.

[0034] Another embodiment of this application proposes a string welding machine, including a movable base and multiple support devices. The multiple support devices are spaced apart along the extension direction of the movable base so as to drive the multiple support devices to move through the movable base. The string welding machine further includes: a gas collecting pipe disposed on the movable base, the gas collecting pipe having multiple air inlets, each of the multiple air inlets corresponding to one of the multiple support devices. The air outlet of the guide section of the support device is connected to the air inlet, and the end opening of the gas collecting pipe is connected to a suction power source so that the airflow in each of the support devices is collected through the gas collecting pipe and then extracted.

[0035] By installing a gas collecting pipe on the mobile base, the outlet of the guide section is directly connected to the inlet of the gas collecting pipe. This eliminates the need for a separate suction power source on each support device, allowing for unified collection of airflow from each support device via the gas collecting pipe on the mobile base. This optimizes the piping design on the mobile base of the string welding machine and reduces costs.

[0036] By applying the technical solution of this utility model, adsorption holes are set on the supporting component. Through the connection between the adsorption holes and the flow guide, a stable negative pressure can be formed under the action of the air extraction power source. The air in each adsorption hole is extracted through the flow guide to form a local low-pressure zone, thereby generating sufficient adsorption force to fix the battery cell. This can ensure the accuracy of the battery cell position during the high-temperature welding process, improve welding quality and production efficiency. Attached Figure Description

[0037] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0038] Figure 1 A structural schematic diagram of an embodiment of the bearing device according to the present invention is shown;

[0039] Figure 2 A structural breakdown diagram of the support device according to the present invention is shown;

[0040] Figure 3 A top view of the support device according to the present invention is shown;

[0041] Figure 4 It shows Figure 3 Sectional view of the middle BB surface;

[0042] Figure 5 A schematic diagram of the flow guide channel in the bearing device according to the present invention is shown;

[0043] Figure 6A schematic diagram of the structure of the first body in the support device according to the present invention is shown;

[0044] Figure 7 A schematic diagram showing another arrangement of the adsorption holes in the carrier device according to the present invention is shown;

[0045] Figure 8 A schematic diagram of the structure of the transportation equipment according to the present invention is shown;

[0046] Figure 9 It shows Figure 8 Enlarged view of section A in the middle;

[0047] Figure 10 A schematic diagram of the movable base and the gas collection pipe is shown.

[0048] The above figures include the following reference numerals:

[0049] 1000. Bearing device;

[0050] 100, Support component; 101, Adsorption hole; 1011, End hole; 1012, Middle hole; 110, First support member; 120, Second support member; 121, First plate; 122, Second plate; 123, Mounting groove; 124, First annular groove; 125, Second annular groove; 130, Protruding body;

[0051] 200. Flow guide section; 210. Merging channel; 220. Channel assembly; 221. Flow guide hole; 230. Flow guide channel; 231. Branch channel section; 232. Main channel section; 240. Extraction pipe fitting;

[0052] 300. Heating components;

[0053] 400, gasket; 401, clearance hole;

[0054] 500. Temperature detection component;

[0055] 2000, Movable base; 2001, Air collection pipe; 2002, Air inlet; 2003, Sealing ring. Detailed Implementation

[0056] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0057] In existing technologies, rubber chucks embedded in the conveying surface are typically used to adsorb the solar cells onto the conveying surface. However, when the solar cells and welding strips are welded by heating them to over 200°C, the rubber chucks are also heated, which causes them to deform. This not only affects the stability of the rubber chucks in adsorbing the solar cells, but also requires frequent replacement of the chucks, thereby reducing the service life of the rubber chucks and the production efficiency of photovoltaic modules.

[0058] Therefore, as Figures 1 to 10 As shown, one embodiment of this application proposes a support device for supporting a battery cell assembly and a solder ribbon assembly. The support device 1000 includes a support component 100, a flow guide 200, and a suction power source. The support component 100 includes a plurality of adsorption holes 101. At least a portion of the flow guide 200 is disposed within the support component 100 and communicates with each adsorption hole 101, so as to guide the airflow in each adsorption hole 101 to the outside of the support component 100 through the flow guide 200, thereby generating a negative pressure in each adsorption hole 101 to adsorb the battery cell assembly onto the support component 100. The suction power source is connected to the air outlet of the flow guide 200, and the suction power source draws away the airflow in each adsorption hole 101 through the flow guide 200. Exemplarily, the solder ribbon assembly is first laid on each support component 100, and then the battery cells are laid on the support component 100. The battery cells are adsorbed through the adsorption holes 101, and the adsorbed battery cells and the support component 100 clamp the solder ribbon tightly. Alternatively, the battery cell assembly can be laid directly on the support component 100 first, and then the welding ribbon assembly can be placed on top. The suction power source creates a stable negative pressure environment inside the adsorption holes 101, effectively adsorbing and fixing the battery cells. This avoids instability caused by deformation of the suction cup material during high-temperature welding, ensuring the accuracy of the battery cell's position during high-temperature welding and improving welding quality and production efficiency.

[0059] like Figures 2 to 4As shown, the flow guide 200 includes a converging channel 210, and the support assembly 100 includes a first support member 110 and a second support member 120. Multiple adsorption holes 101 are disposed on the first support member 110, and the adsorption holes 101 can precisely match the position of the battery cells, achieving accurate positioning and fixation of the battery cells. The first support member 110 is connected to the second support member 120, and the converging channel 210 is disposed within the second support member 120 and extends along the length of the second support member 120. The converging channel 210 is disposed opposite to and connected to each adsorption hole 101. The airflow in each adsorption hole 101 is converged through the converging channel 210 and then discharged. The design of the converging channel 210 optimizes the airflow path and improves the airflow efficiency, allowing the suction power source to act more effectively on each adsorption hole 101, forming a uniform and stable negative pressure. This improves the adsorption performance of the battery cell support device 1000, ensuring stable fixation of the battery cells even on high-speed production lines.

[0060] Specifically, such as Figures 2 to 4 As shown, the flow guide 200 also includes a flow channel assembly 220. The second support member 120 includes a first plate 121 and a second plate 122. The first support member 110 is embedded in and connected to the first plate 121. Exemplarily, the first support member 110 is made of metal. The flow channel assembly 220 is disposed within the first plate 121 and is connected to multiple adsorption holes 101 respectively. The second plate 122 is disposed below the first plate 121, and a converging flow channel 210 is disposed within the second plate 122. The flow channel assembly 220 is connected to the converging flow channel 210 so that the airflow in each adsorption hole 101 flows through the flow channel assembly 220 and then into the converging flow channel 210. The adsorption holes 101 and the flow channel assembly 220 are interconnected, converging the airflow in multiple adsorption holes 101 at the flow channel assembly 220, which allows for more precise control of the airflow distribution and ensures that each adsorption hole 101 receives sufficient negative pressure. The combined use of the first plate 121 and the second plate 122 provides sufficient support and protection for the supported solar cells and ribbon assembly, preventing deformation of the support assembly 100 due to external forces during production, which could damage the supported solar cells and ribbon assembly. This improves the overall reliability of the support assembly 100 and extends its service life.

[0061] Furthermore, such as Figure 4 and Figure 5As shown, the flow guiding section 200 includes flow guiding channels 230 disposed on the bottom surface of the first support member 110. The flow guiding channels 230 are respectively connected to each adsorption hole 101 and the flow channel group 220. The airflow in each adsorption hole 101 is guided to the flow channel group 220 through the flow guiding channels 230 and then flows into the confluence flow channel 210. Specifically, the flow guiding channel 230 includes interconnected branch flow channel sections 231 and main flow channel sections 232. There are multiple branch flow channel sections 231, which extend along the width direction of the first support member 110. Each branch flow channel section 231 is respectively connected to one or more adsorption holes 101. The main flow channel section 232 extends along the length direction of the first support member 110. The airflow in each adsorption hole 101 is guided by the branch flow channel sections 231 and flows into the main flow channel section 232, and then flows into the confluence flow channel 210 through the flow channel group 220.

[0062] Branch channel section 231 is responsible for collecting airflow from adsorption holes 101, while main channel section 232 is responsible for converging this airflow and guiding it to the confluence channel 210. The segmented design of the guide channel 230, namely the combination of branch channel section 231 and main channel section 232, optimizes the airflow transmission path, enabling more precise control of airflow distribution. This ensures that each adsorption hole 101 receives sufficient negative pressure, significantly improving the efficiency and uniformity of airflow transmission. This allows all parts of the battery cell to be stably adsorbed, ensuring a good adsorption effect and preventing the battery cell from shifting during the movement of the carrier device 1000. In other embodiments, a regulating valve can be added between branch channel section 231 and main channel section 232 to dynamically adjust the airflow of different adsorption holes 101 to adapt to the needs of different production stages and solve the problem of airflow control flexibility under varying production conditions.

[0063] Furthermore, such as Figure 2 and Figure 6 As shown, the flow channel assembly 220 includes multiple guide holes 221, which are spaced apart along the length of the first plate 121. The main flow channel section 232 is arranged opposite to and connected to each guide hole 221, and the airflow in the main flow channel section 232 flows into the confluence flow channel 210 through each guide hole 221. The connection between the guide holes 221 and the confluence flow channel 210 enables efficient airflow collection and transmission. By rationally arranging the guide holes 221, optimizing the airflow direction, and reducing resistance and loss during airflow transmission, the efficiency and stability of airflow transmission can be improved, the energy consumption of the pumping power source can be reduced, and the negative pressure level in the adsorption hole 101 can be maintained.

[0064] In other embodiments, the number of flow channel groups 220 or the size and position of the guide holes 221 can be increased to accommodate solar cells of different sizes and shapes. For example, multiple flow channel groups 220 are provided, spaced apart along the width direction of the first plate 121. Multiple main flow channel sections 232 are provided, each corresponding to one of the multiple flow channel groups 220. Providing multiple flow channel groups 220 better adapts to the size and layout requirements of the solar cell carrier 1000, ensuring uniform airflow distribution over a wide area. By dividing the flow channel groups 220 and main flow channel sections 232 into multiple independent units, the movement path from each adsorption hole 101 to the guide channel can be streamlined, reducing turbulence, lowering the power requirement for the blower, and ensuring stable adsorption force of each adsorption hole 101.

[0065] Furthermore, such as Figure 2 and Figure 6 As shown, the second support member 120 is provided with a mounting groove 123, and the first support member 110 is embedded in the mounting groove 123. A first sealing member is also provided between the first support member 110 and the second support member 120, and the first sealing member is respectively in contact with the bottom surface of the groove of the first support member 110 and the mounting groove 123. For example, the first plate 121 of the second support member 120 is provided with a first annular groove 124, and the first sealing member is a sealing ring provided in the first annular groove 124. The second plate 122 is provided with a second annular groove 125, and the second sealing member is provided in the second annular groove 125. The first sealing member and the second sealing member are provided here to improve the sealing performance. The design of the mounting groove 123 enables quick installation and disassembly between the first support member 110 and the second support member 120, which is convenient for maintenance and replacement. In other embodiments, positioning pins or magnetic structures can be provided in the mounting groove 123 to further enhance the positioning accuracy and connection strength between the first support member 110 and the second support member 120, thereby solving the problem of equipment stability under vibration or impact environments.

[0066] Furthermore, such as Figures 1 to 4 As shown, the flow guide 200 also includes two suction pipes 240, which are respectively disposed at both ends of the bottom of the second support member 120 along its length. Both suction pipes 240 are connected to the confluence channel 210, and the suction pipe of the suction power source is simultaneously connected to both suction pipes 240. In this application, the two suction pipes 240 are symmetrically arranged, simultaneously removing air from the adsorption holes 101, ensuring that each adsorption hole 101 has sufficient adsorption force.

[0067] Furthermore, such as Figure 1 and Figure 4As shown, the support device 1000 also includes a heating element 300 disposed within the first plate 121 for heating the first support member 110. The heating element 300 avoids the flow channel assembly 220. The arrangement of the heating element 300 provides the necessary temperature conditions for welding the battery cells. Simultaneously, by bypassing the flow channel assembly 220, it avoids affecting the airflow path during heating, ensuring unobstructed airflow transmission and enabling the synergistic operation of heating and adsorption functions. For example, the heating element 300 can be selected as an electric heating rod.

[0068] Furthermore, such as Figure 1 As shown, the support device 1000 also includes a temperature detection component 500, which is disposed on the support assembly 100. The integration of the temperature detection component 500 enables real-time monitoring of the temperature status of the support assembly 100, providing data support for the control of the heating component 300, and also enabling monitoring of temperature changes during the welding process to ensure welding quality. Exemplarily, the temperature detection component 500 is a thermocouple.

[0069] Furthermore, such as Figure 2 As shown, the support component 100 is provided with a protruding body 130, which protrudes relative to the surface of the support component 100. The opening of the adsorption hole 101 is provided on the protruding body 130. There are multiple protruding bodies 130, and multiple protruding bodies 130 are provided in a one-to-one correspondence with multiple adsorption holes 101. For example, the protruding body 130 is provided on the first support member 110 of the support component 100. The top surface of the protruding body 130 serves as a positioning reference for the battery cell and can guide the correct placement of the solder ribbon. The design of the protruding body 130 can ensure the precise alignment between the battery cell and the solder ribbon, thereby improving the positioning accuracy of the battery cell support device 1000.

[0070] The support device 1000 also includes a gasket 400 disposed on the surface of the support component 100. The gasket 400 has clearance holes 401, through which the protruding body 130 protrudes. Multiple clearance holes 401 are provided, each corresponding to one of the protruding bodies 130. The gasket 400 protects the surface of the support component 100, preventing it from sticking to the support plate during high-temperature welding, and also provides insulation for the support component 100. The design of the clearance holes 401 ensures the correct installation of the protruding bodies 130 under the gasket 400. For example, five gaskets 400 are provided, each corresponding to one of the five rows of adsorption holes 101. The gasket 400 can be made of Teflon material.

[0071] Furthermore, the vertical distance between the top surface of the protruding body 130 and the surface of the pad 400 is L, and the thickness of the solder strip is D; where L < D. By controlling the distance between the protruding body 130 and the pad 400 to be less than the thickness of the solder strip, it is ensured that the solder strip can contact the battery pack when the battery cell assembly is adsorbed onto the protruding body 130. For example, the vertical distance from the upper surface of the adsorption hole 101 to the upper surface of the pad 400 is 0.22 mm, and the thickness of the solder strip is 0.25 mm.

[0072] In this embodiment, the adsorption holes 101 on the first support member 110 are arranged in multiple rows along the length direction of the first support member 110, and the distance between two adjacent rows of adsorption holes 101 is equal.

[0073] In another embodiment, the plurality of adsorption holes 101 include multiple rows of end holes 1011 and multiple rows of middle holes 1012 sequentially arranged along the length direction of the support component 100. The multiple rows of end holes 1011 are respectively located at both ends of the support component 100 along the length direction, and the multiple rows of middle holes 1012 are respectively located in the middle portion of the support component 100 along the length direction. The distance between two adjacent end holes 1011 along the length direction of the support component 100 is A, the distance between adjacent end holes 1011 and middle holes 1012 along the length direction of the support component 100 is B, and the distance between two adjacent middle holes 1012 along the length direction of the support component 100 is C. <B<C。

[0074] By optimizing the arrangement of the adsorption holes 101, compared with the method of the adsorption holes 101 being evenly distributed on the support component 100, this application reduces the number of adsorption holes 101 in the middle part of the support component 100. While ensuring the adsorption force of the adsorption holes 101 on the battery cells, it reduces the power requirement of the air pumping power source, which can be adapted to more application scenarios and also reduces energy consumption.

[0075] Work process:

[0076] In practical use, the cell support device 1000 first connects to the air extraction power source and the guide section 200, activating the air extraction power source to create negative pressure within the adsorption holes 101, stably adsorbing the cell onto the surface of the first support member 110. During this process, the heating component 300 continuously operates, preheating the cell and welding strip to provide the necessary temperature conditions for the welding process. Meanwhile, the temperature detection component 500 monitors the temperature of the support assembly 100 in real time, ensuring that the temperature of the support assembly 100 remains within a predetermined range. Throughout the process, the guide channel 230, the channel group 220, and the confluence channel 210 work together. Air above the support assembly 100 enters the channel group 220 on the bottom surface of the support plate through the adsorption holes 101, and then enters the confluence channel 210 through the guide channel 230, before being extracted from the two air extraction pipes 240. Finally, the cell assembly, under precise positioning and stable adsorption, completes high-quality welding to form a cell string.

[0077] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0078] An adsorption hole 101 is provided on the support component 100. Through the connection between the adsorption hole 101 and the flow guide 200, a stable negative pressure can be formed under the action of the air extraction power source. The air in each adsorption hole 101 is extracted through the flow guide 200 to form a local low pressure zone, thereby generating sufficient adsorption force to fix the battery cell. This can ensure the accuracy of the battery cell position during the high-temperature welding process, improve welding quality and production efficiency.

[0079] Another embodiment of this application proposes a transportation device, including multiple carrier devices 1000 and a movable base 2000. The multiple carrier devices 1000 are sequentially arranged on the movable base 2000, and the movable base 2000 drives the multiple carrier devices 1000 to move. The movable base 2000 moves via a drive device, and its movement path includes a stringing station, a welding station, and a unloading station in sequence. Here, the carrier devices 1000 can stably fix the battery cells, and the movable base 2000 can precisely drive the carrier devices 1000 to move between various stations on the production line. The drive unit may include a drive wheel, a driven wheel, a transmission belt, and a drive motor. The movable base 2000 is slidably mounted on the slide rail via a slider. The drive wheel and the driven wheel are rotatably mounted on both ends of the slide rail along its length. The transmission belt is sleeved on the drive wheel and the driven wheel. The movable base 2000 is fixedly connected to the transmission belt via a connector. The drive motor drives the drive wheel to rotate, which in turn drives the transmission belt to slide horizontally, thereby driving the movable base 2000 to slide horizontally to the stringing station, welding station, and unloading station.

[0080] Another embodiment of this application proposes a string welding machine, including a movable base 2000 and multiple support devices 1000. The multiple support devices 1000 are spaced apart along the extending direction of the movable base 2000, so that the movable base 2000 drives the multiple support devices 1000 to move to a predetermined workstation for processing the battery cell array on the support device 1000. Specifically, the movable base 2000 moves via a drive device, and its movement path includes a stringing workstation, a welding workstation, and a unloading workstation. Multiple support devices 1000 are provided, and they are sequentially mounted on the movable base 2000. The movable base 2000 moves to the stringing workstation to carry the welding strip and battery cell array, then moves to the welding workstation, where the battery cells and welding strip are welded and fixed by a welding mechanism. Finally, the movable base 2000 moves to the unloading workstation, awaiting removal of the welded battery string by a transport mechanism.

[0081] The string welding machine also includes a gas collecting pipe 2001 mounted on the movable base 2000. The gas collecting pipe 2001 has an air inlet 2002. The outlet end of the guide section 200 of the support device 1000 is connected to the air inlet 2002. There are multiple air inlets 2002, each corresponding to one of the support devices 1000. The end opening of the gas collecting pipe 2001 is connected to a suction power source, allowing the airflow within each support device 1000 to be collected and extracted after passing through the gas collecting pipe 2001. In this configuration, after the support device 1000 is mounted on the movable base 2000, the outlet end of the guide section 200 is directly connected to the air inlet 2002 on the gas collecting pipe 2001. Therefore, it is not necessary to install a suction power source on each support device 1000; the gas collected from each support device 1000 is collected uniformly through the gas collecting pipe 2001 on the movable base 2000. The piping design on the movable base 2000 in the string welding machine has been optimized, reducing costs and facilitating disassembly and maintenance.

[0082] Furthermore, the air outlet of the bottom confluence channel 210 of the support device 1000 and the air inlet 2002 of the corresponding gas collection pipe 2001 are sealed together by a sealing ring 2003. The sealing ring 2003 can improve the sealing performance and prevent gas residue in the adsorption hole 101 from affecting the adsorption effect.

[0083] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A support device for supporting a battery cell assembly and a solder strip assembly, characterized in that, The supporting device includes: A support component (100) includes a plurality of adsorption holes (101); A flow guide (200) is provided in the support assembly (100) and communicates with each of the adsorption holes (101) to guide the airflow in each of the adsorption holes (101) to the outside of the support assembly (100) through the flow guide (200), so as to generate a negative pressure in each of the adsorption holes (101) to adsorb the battery pack onto the support assembly (100); An air extraction power source is connected to the air outlet of the guide section (200), and the air extraction power source draws away the airflow in each adsorption hole (101) through the guide section (200).

2. The bearing device according to claim 1, characterized in that, The flow guide (200) includes a confluence channel (210), and the support assembly (100) includes: A first support member (110) is provided with a plurality of adsorption holes (101) disposed on the first support member (110); The second support member (120) is connected to the first support member (110). The confluence channel (210) is disposed inside the second support member (120) and extends along the length of the second support member (120). The confluence channel (210) is disposed opposite to and in communication with each of the adsorption holes (101). The airflow in each of the adsorption holes (101) is discharged after being confluent through the confluence channel (210).

3. The bearing device according to claim 2, characterized in that, The flow guide (200) further includes a flow channel assembly (220), and the second support member (120) includes: The first plate (121) has the first support member (110) embedded in and connected to the first plate (121), and the flow channel group (220) is disposed in the first plate (121). The flow channel group (220) is respectively connected to a plurality of adsorption holes (101). The second plate (122) is disposed below the first plate (121), and the confluence channel (210) is disposed inside the second plate (122). The channel group (220) is connected to the confluence channel (210) so that the airflow in each of the adsorption holes (101) flows through the channel group (220) and then flows into the confluence channel (210).

4. The bearing device according to claim 3, characterized in that, The flow guide (200) also includes: A flow guide channel (230) is provided on the bottom surface of the first support member (110). The flow guide channel (230) is connected to each of the adsorption holes (101) and the flow channel group (220). The airflow in each of the adsorption holes (101) is guided to the flow channel group (220) through the flow guide channel (230) and then flows into the converging flow channel (210). The diversion channel (230) includes interconnected branch channel sections (231) and main channel sections (232); There are multiple branch flow channel segments (231), and the multiple branch flow channel segments (231) extend along the width direction of the first support member (110). Each branch flow channel segment (231) is connected to one or more of the adsorption holes (101). The main channel section (232) extends along the length direction of the first carrier (110). The airflow in each of the adsorption holes (101) flows into the main channel section (232) after being guided by the branch channel section (231), and then flows into the confluence channel (210) through the channel group (220).

5. The bearing device according to claim 4, characterized in that, The flow channel assembly (220) includes a plurality of guide holes (221), which are spaced apart along the length of the first plate (121). The main flow channel section (232) is arranged opposite to and connected to each of the guide holes (221). The airflow in the main flow channel section (232) flows into the converging flow channel (210) through each of the guide holes (221).

6. The bearing device according to claim 4, characterized in that, The flow channel group (220) is a plurality of groups, and the plurality of flow channel groups (220) are spaced apart along the width direction of the first plate (121). The main flow channel section (232) is a plurality of groups, and the plurality of main flow channel sections (232) are arranged one-to-one with the plurality of flow channel groups (220).

7. The bearing device according to claim 3, characterized in that, The supporting device further includes: A heating element (300) is disposed inside the first plate (121) for heating the first support member (110), and the heating element (300) avoids the flow channel assembly (220).

8. The bearing device according to claim 2, characterized in that, The flow guide (200) also includes two air extraction pipes (240); The two suction pipes (240) are respectively disposed at both ends of the bottom of the second support member (120) along the length direction. Both suction pipes (240) are connected to the confluence channel (210). The suction pipe of the suction power source is simultaneously connected to the two suction pipes (240).

9. The bearing device according to claim 2, characterized in that, The second support member (120) is provided with a mounting groove (123), and the first support member (110) is embedded in the mounting groove (123); A first sealing component is also provided between the first support member (110) and the second support member (120), and the first sealing component is respectively attached to the bottom surface of the first support member (110) and the mounting groove (123).

10. The bearing device according to claim 1, characterized in that, The support component (100) is provided with a protruding body (130), the protruding body (130) protrudes relative to the surface of the support component (100), and the opening of the adsorption hole (101) is provided on the protruding body (130); There are multiple protruding bodies (130), and each of the multiple protruding bodies (130) is arranged in a one-to-one correspondence with a multiple adsorption hole (101).

11. The bearing device according to claim 10, characterized in that, The supporting device further includes: A gasket (400) is disposed on the surface of the bearing assembly (100). The gasket (400) is provided with a clearance hole (401). The protruding body (130) protrudes through the clearance hole (401). There are multiple clearance holes (401), and the multiple clearance holes (401) are provided in a one-to-one correspondence with the multiple protruding bodies (130).

12. The bearing device according to claim 1, characterized in that, The plurality of adsorption holes (101) include multiple rows of end holes (1011) and multiple rows of middle holes (1012) arranged sequentially along the length direction of the support component (100), wherein: The distance between two adjacent end holes (1011) along the length direction of the bearing assembly (100) is A; The distance between the end hole (1011) and the middle hole (1012) adjacent to each other along the length direction of the bearing component (100) is B; The distance between two adjacent central holes (1012) along the length direction of the bearing component (100) is C; A <B<C。 13. A string welding machine, comprising a movable base (2000) and a plurality of support devices (1000), wherein the plurality of support devices (1000) are spaced apart along the extending direction of the movable base (2000) to drive the plurality of support devices (1000) to move via the movable base (2000), characterized in that, The string welding machine also includes: An air collecting pipe (2001) is disposed on the movable base (2000). The air collecting pipe (2001) is provided with an air inlet (2002). There are multiple air inlets (2002), and each of the multiple air inlets (2002) is provided in a one-to-one correspondence with a multiple of the support devices (1000). The air outlet end of the guide section (200) of the support device (1000) is connected to the air inlet (2002). The end opening of the air collecting pipe (2001) is connected to the air extraction power source, so that the airflow in each of the support devices (1000) is collected through the air collecting pipe (2001) and then extracted. The supporting device (1000) is the supporting device (1000) according to any one of claims 1 to 11.

Images