Photovoltaic cell string welding and dispensing device

Abstract

The embodiment of the application discloses a kind of photovoltaic cell string welding point glue dispensing devices, including support leg, support leg is provided with machine cabinet, machine cabinet is erected with multi-axis drive module, multi-axis drive module is provided with the glue gun for battery piece welding point glue dispensing, machine cabinet is opened with through cavity, the inner top wall of through cavity is provided with solidification component, through cavity is transversely provided with transmission frame, transmission frame is inclined to be arranged, the inner side of transmission frame is drivingly connected with battery piece conveying belt, battery piece conveying belt is used to convey the battery piece that is welded by welding strip to form weld, and battery piece conveying belt is integrally connected with abutting belt.The application solves the problem of high operation and maintenance cost when the mechanical arm controls the battery piece feeding and glue dispensing, and the battery piece in the glue dispensing area has no effective limiting structure to stabilize the glue dispensing position, and the glue dispensing stability has the technical problem of insufficient.

Description

Technical Field

[0001] This invention belongs to the field of battery processing technology, and more specifically, this invention relates to a photovoltaic cell string bonding adhesive device. Background Technology

[0002] In the manufacturing process of photovoltaic cells, multiple cells need to be welded together using multiple solder ribbons to form a cell string. During welding, the tin plating layer on the surface of the solder ribbons is melted by high temperature and welded to the main grid lines made of silver paste printed on the cell. Typically, each cell has multiple solder ribbons, and each ribbon requires multiple solder joints with a single cell. These solder joints require a dispensing process. The main reasons for dispensing adhesive in photovoltaic cell string welding are: 1. The dispensing process ensures a more secure fixation of the solder joints, preventing them from detaching due to vibration or external forces during use. 2. Dispensing forms a protective film on the surface of the solder joints, preventing oxidation or corrosion caused by prolonged exposure to air, while also providing good insulation properties to ensure safe circuit operation. In summary, the dispensing process plays a crucial role in the application of photovoltaic cell string welding, improving product quality and stability, extending service life, and ensuring circuit safety and reliability.

[0003] Currently, the dispensing process for solar cells with welded joints formed by welding strips mainly relies on dispensing equipment on a conveyor line. To ensure the accuracy of the dispensing equipment at the weld joints, the solar cells, fed onto the conveyor line, need to be precisely placed in the dispensing area by a robotic arm. While the robotic arm provides order and accuracy in the feeding of the solar cells, its maintenance cost is relatively high. In addition, there is no effective limiting structure in the dispensing area to stabilize the dispensing position, resulting in insufficient dispensing stability. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art, and discloses a photovoltaic cell string bonding adhesive device.

[0005] This invention provides a photovoltaic cell string bonding adhesive dispensing device, comprising:

[0006] A cabinet with legs, wherein the cabinet has a through cavity;

[0007] A multi-axis drive module, which is mounted on the cabinet;

[0008] A dispensing gun for dispensing adhesive at the solder joints of battery cells, the dispensing gun being mounted on the multi-axis drive module;

[0009] A curing assembly is disposed on the inner top wall of the cavity;

[0010] A transmission frame is provided transversely within the cavity, and the transmission frame is provided at an angle.

[0011] A battery cell conveyor belt is used to transport battery cells that have formed weld joints by welding strips. The battery cell conveyor belt is driven and connected to the inner side of the transmission frame. An abutment belt is integrally connected to the battery cell conveyor belt. Several abutment plates are fixedly connected to the abutment belt and the battery cell conveyor belt. The battery cells are movably arranged between the battery cell conveyor belt, the abutment belt and the abutment plates.

[0012] Elastic rotation component one, the elastic rotation component one is disposed on the abutment plate, and the elastic rotation component one is provided with a pressure frame for pressing and fixing the battery cells;

[0013] A pair of elastic rotating components are provided on the transmission frame, and a push plate is provided on the pair of elastic rotating components. The push plate and the pressure frame are in movable contact.

[0014] In some possible embodiments, the multi-axis drive module includes:

[0015] A pair of linear modules, the pair of linear modules being mounted on one side of the cabinet;

[0016] Linear module two, wherein the linear module two is disposed at the sliding part of a pair of linear modules one;

[0017] A lifting device is provided at the sliding part of the linear module, and the dispensing gun is provided at the output end of the lifting device.

[0018] In some possible embodiments, the tilt angles of the transport frame and the dispensing gun are the same.

[0019] In some possible embodiments, the number of resilient rotating components on each of the abutment plates is at least two.

[0020] In some possible embodiments, the elastic rotating assembly includes a support and a torsion spring shaft.

[0021] The support is fixedly connected to the abutment plate;

[0022] The torsion spring shaft is mounted on the support, and a pressure frame is mounted on the torsion spring shaft. The pressure frame is rotatably connected to the support via the torsion spring shaft.

[0023] In some possible embodiments, a rubber pad is fixedly connected to one end of the pressure frame, and the pressure frame contacts the surface of the battery cell through the rubber pad, while the other end of the pressure frame is rounded.

[0024] In some possible embodiments, the second elastic rotation component includes a second support and a second torsion spring shaft;

[0025] The second support is fixedly connected to the transmission frame;

[0026] A torsion spring shaft two is mounted on the support two, and a rotating disk is mounted on the torsion spring shaft two. The rotating disk is rotatably connected to the support two via the torsion spring shaft two, and the push plate is fixedly connected to a pair of rotating disks.

[0027] In some possible embodiments, when the rounded end of the pressure frame contacts the push plate, the pressure frame is rotatably mounted on the support, and the pressure frame contacts the surface of the battery cell through the rubber pad.

[0028] In some possible embodiments, when the pressure of the pressure frame pressing onto the battery cell is greater than the elastic force of the torsion spring on the second torsion spring shaft, the pressure frame passes over the push plate.

[0029] In some possible embodiments, light-shielding plates are provided on both sides of the cavity.

[0030] Beneficial effects:

[0031] The photovoltaic cell string welding and dispensing device of this invention changes the conveying angle of the cell conveyor belt in traditional conveying equipment to give the cell conveyor belt a certain inclination. It is combined with the cell conveyor belt and the abutment belt and abutment plate that vertically surround the cell. In this way, the cell is manually fed onto the cell conveyor belt and then dispensing is performed with a dispensing gun. This can improve the accuracy and efficiency of cell loading and alignment.

[0032] Furthermore, in the photovoltaic cell stringing and dispensing device of this embodiment, a pressure frame that rotates using an elastic rotating component is provided on the abutment plate. When the cell conveyor belt moves intermittently, the rounded end of the pressure frame contacts the push plate, and the pressure frame can contact the surface of the cell through the rubber pad. This can press and limit the cell to be dispensed, thereby improving the stability of the cell dispensing. When the pressure of the pressure frame on the cell is greater than the elastic force of the torsion spring on the torsion spring shaft, the pressure frame can pass over the push plate, which can easily release the fixation of the cell. Attached Figure Description

[0033] The above and other features, advantages, and aspects of the various embodiments of the present invention will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and elements are not necessarily drawn to scale.

[0034] Figure 1This is a schematic diagram of the overall structure of a photovoltaic cell string bonding and dispensing device according to an embodiment of the present invention;

[0035] Figure 2 For the present invention Figure 1 Side view without the sunshade;

[0036] Figure 3 This is a schematic diagram of the structure of the battery cell transport belt and the abutment belt according to an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the structure of the abutment plate, the elastic rotating assembly, and the pressure frame according to an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of the elastic rotating member 2 and the push plate according to an embodiment of the present invention;

[0039] Figure 6 This is a schematic diagram of the multi-axis drive module and dispensing gun according to an embodiment of the present invention;

[0040] The attached diagram is labeled as follows: 1. Support leg; 2. Cabinet; 3. Through cavity; 4. Curing component; 5. Transmission frame; 6. Battery cell conveyor belt; 7. Abutment belt; 8. Abutment plate; 9. Elastic rotating component one; 91. Support one; 92. Torsion spring shaft one; 10. Pressure frame; 101. Push plate; 11. Elastic rotating component two; 111. Support two; 112. Torsion spring shaft two; 113. Rotating disk; 12. Multi-axis drive module; 121. Linear module one; 122. Linear module two; 123. Lifting device; 13. Dispensing gun; 14. Light shield; 15. Rubber pad. Detailed Implementation

[0041] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0042] Unless otherwise specifically stated, the technical or scientific terms used in the embodiments of this invention should be understood in their ordinary sense by those skilled in the art to which this invention pertains. The terms "comprising" or "including," as used in the embodiments of this invention, do not limit the shapes, numbers, steps, actions, operations, components, elements, and / or groups thereof mentioned, nor do they exclude the appearance or addition of one or more other different shapes, numbers, steps, actions, operations, components, elements, and / or groups thereof, or the addition of these. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number and order of the indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale, and techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail; however, where appropriate, the illustrated techniques, methods, and apparatus should be considered part of the specification. In all the examples shown and discussed herein, any other specific example may have different values. It should be noted that similar symbols and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0044] In the description of the embodiments of the present invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In the embodiments of the present invention, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in the embodiments of the present invention, as well as the features of different embodiments or examples.

[0045] See also Figures 1-6This invention provides a photovoltaic cell string bonding adhesive dispensing device, including a support leg 1, a cabinet 2 mounted on the support leg 1, a multi-axis drive module 12 mounted on the cabinet 2, and a dispensing gun 13 for dispensing adhesive to the cell bonding joints mounted on the multi-axis drive module 12. A cavity 3 is formed in the cabinet 2, and a curing component 4 is mounted on the inner top wall of the cavity 3. The curing component 4 can use a UV curing lamp to cure the adhesive on the cell bonding joints. A transmission frame 5 is transversely arranged within the cavity 3, and the transmission frame 5 is inclined. A cell conveyor belt 6 is drivenly connected to the inner side of the transmission frame 5. The transmission connection of the cell conveyor belt 6 to the transmission frame 5 can utilize existing belt conveyor structures such as belt rollers, tensioning devices, and transmission devices to achieve stable driving of the cell conveyor belt 6. The structure included in the above belt conveyor is... The existing technology will not be elaborated further here. The battery cell conveyor belt 6 is used to transport battery cells that have formed weld joints by welding strips. An abutment belt 7 is integrally connected to the battery cell conveyor belt 6. Several abutment plates 8 are fixedly connected to the abutment belt 7 and the battery cell conveyor belt 6. The battery cells are movably arranged between the battery cell conveyor belt 6, the abutment belt 7, and the abutment plates 8. The inclined arrangement of the transmission frame 5 allows the battery cell conveyor belt 6 to have a certain angle, preferably between 20 and 35 degrees. This allows the battery cells to move in an inclined state of 20-35 degrees. When the battery cells are placed on the battery cell conveyor belt 6, one end of the battery cell can be quickly limited to the abutment belt 7. Because the abutment belt 7 and the abutment plates 8 are set vertically, this vertical area is the glue dispensing area of ​​the battery cell. In this way, the battery cell can be quickly vertically limited, improving the accuracy and efficiency of feeding.

[0046] Both sides of the cavity 3 are provided with light shields 14, which can provide a certain degree of light shielding for the curing component 4.

[0047] The multi-axis drive module 12 includes a pair of linear modules 121, which are mounted on one side of the cabinet 2. The pair of linear modules 121 can be fixed to the cabinet 2 by fasteners. A linear module 122 is provided at the sliding part of the pair of linear modules 121. A lifting device 123 is provided at the sliding part of the linear module 122. A glue gun 13 is provided at the output end of the lifting device 123. The lifting device 123 can be a lifting motor. By utilizing the linear power provided by the linear modules and the lifting motor in multiple directions, the glue gun 13 can apply glue to the battery cells with welded joints formed by welding strips in the vertical area of ​​the abutment belt 7 and the abutment plate 8.

[0048] The tilt angles of the transmission frame 5 and the dispensing gun 13 are the same, and the tilt angle of the multi-axis drive module 12 is also the same as that of the transmission frame 5. The advantage of this design is that, since the battery cells on the battery cell conveyor belt 6 are tilted during transmission, the dispensing gun 13 and the battery cells can be on the same horizontal plane for dispensing.

[0049] The abutment plate 8 is provided with a first elastic rotating component 9, and the first elastic rotating component 9 is provided with a pressure frame 10 for pressing the battery cells. The transmission frame 5 is provided with a pair of second elastic rotating components 11, and the pair of second elastic rotating components 11 is provided with a push plate 101. The push plate 101 and the pressure frame 10 are in contact.

[0050] The number of elastic rotating components 9 on each abutment plate 8 is at least two. Each elastic rotating component 9 includes a support 91, which is fixedly connected to the abutment plate 8. A torsion spring shaft 92 is provided on the support 91, and a pressure frame 10 is provided on the torsion spring shaft 92. The pressure frame 10 is rotatably connected to the support 91 through the torsion spring shaft 92. The elastic rotating component 9 can provide elastic rotation for the pressure frame 10.

[0051] A rubber pad 15 is fixedly connected to one end of the pressure frame 10. The pressure frame 10 contacts the surface of the battery cell through the rubber pad 15. The other end of the pressure frame 10 is rounded. The rubber pad 15 can increase the friction and provide flexible pressing protection for the battery cell. The rounded corner at one end of the pressure frame 10 can facilitate the sliding of the structural components.

[0052] The second elastic rotation component 11 includes a second support 111, which is fixedly connected to the transmission frame 5. A second torsion spring shaft 112 is provided on the second support 111, and a rotating disk 113 is provided on the second torsion spring shaft 112. The rotating disk 113 is rotatably connected to the second support 111 via the second torsion spring shaft 112. The push plate 101 is fixedly connected to a pair of rotating disks 113. The second elastic rotation component 11 can provide elastic rotation for the push plate 101.

[0053] When the rounded end of the pressure frame 10 contacts the push plate 101, the pressure frame 10 is rotatably mounted on the support 91, and the pressure frame 10 contacts the surface of the battery cell through the rubber pad 15.

[0054] When the pressure of the pressure frame 10 pressing on the battery cell is greater than the elastic force of the torsion spring on the second torsion spring shaft 112, the pressure frame 10 passes over the push plate 101. In this application, the elastic force of the first torsion spring shaft 92 is greater than the elastic force of the second torsion spring shaft 112. Thus, when the pressure frame 10 and the push plate 101 come into contact, the pressure frame 10 can first rotate on the first support 91.

[0055] When in use, the present invention drives the battery cell conveyor belt to perform intermittent transmission through the belt conveyor control system in the prior art. Since the abutment belt 7 and multiple abutment plates 8 are set on the battery cell conveyor belt 6 to form a dispensing and feeding area, and since the dispensing and feeding area has verticality and a certain slope, it is easier to align the battery cells that are manually placed to form weld points by welding strips, thereby reducing the difficulty of alignment and feeding and improving feeding efficiency.

[0056] Until the conveyor belt 6 moves the pressure frame 10 on the abutment plate 8 to the position of the push plate 101, the push plate 101 can press the rounded end of the pressure frame 10. The pressure frame 10 can then rotate via the torsion spring shaft 92 as a fulcrum, allowing the rubber pad 15 at one end of the pressure frame 10 to press against the surface of the battery cell. This surface does not involve the dispensing area, thus the battery cell is pressed firmly. Subsequently, by executing the output of the multi-axis drive module 12 through the existing drive control system, the dispensing gun 13 can perform multiple dispensing treatments on the solder joints of the battery cell. When the battery cell at that location... After the dispensing is completed, the battery cell conveyor belt 6 can continue to move until the pressure of the pressure frame 10 on the battery cell is greater than the elastic force of the torsion spring on the second torsion spring shaft 112. Then, the push plate 101 can rotate at a certain angle through the second torsion spring shaft 112 on the rotating disk 113. The pressure frame 10 can then pass over the push plate 101. Under the action of the elastic rotation of the first torsion spring shaft 92, the pressure frame 10 can release the pressure on the battery cell so that it can be unloaded and removed later. After the dispensed battery cell moves into the cavity 3, the curing component 4 inside can cure the dispensing position.

[0057] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A photovoltaic cell string bonding adhesive dispensing device, characterized in that, include: A cabinet with legs, wherein the cabinet has a through cavity; A multi-axis drive module, which is mounted on the cabinet; A dispensing gun for dispensing adhesive at the solder joints of battery cells, the dispensing gun being mounted on the multi-axis drive module; A curing assembly is disposed on the inner top wall of the cavity; A transmission frame is provided transversely within the cavity, and the transmission frame is provided at an angle. A battery cell conveyor belt is used to transport battery cells that have formed weld joints by welding strips. The battery cell conveyor belt is driven and connected to the inner side of the transmission frame. An abutment belt is integrally connected to the battery cell conveyor belt. Several abutment plates are fixedly connected to the abutment belt and the battery cell conveyor belt. The battery cells are movably arranged between the battery cell conveyor belt, the abutment belt and the abutment plates. Elastic rotation component one, the elastic rotation component one is disposed on the abutment plate, and the elastic rotation component one is provided with a pressure frame for pressing and fixing the battery cells; A pair of elastic rotating components are provided on the transmission frame, and a push plate is provided on the pair of elastic rotating components. The push plate and the pressure frame are in movable contact.

2. The photovoltaic cell string bonding and dispensing device according to claim 1, characterized in that, The multi-axis drive module includes: A pair of linear modules, the pair of linear modules being mounted on one side of the cabinet; Linear module two, wherein the linear module two is disposed at the sliding part of a pair of linear modules one; A lifting device is provided at the sliding part of the linear module, and the dispensing gun is provided at the output end of the lifting device.

3. The photovoltaic cell string bonding and dispensing device according to claim 1, characterized in that, The tilt angles of the transmission frame and the dispensing gun are the same.

4. A photovoltaic cell string bonding and dispensing device according to any one of claims 1 to 3, characterized in that, The number of resilient rotating components on each of the aforementioned abutment plates is at least two.

5. The photovoltaic cell string bonding and dispensing device according to claim 4, characterized in that, The elastic rotation component includes a support and a torsion spring shaft. The support is fixedly connected to the abutment plate; The torsion spring shaft is mounted on the support, and a pressure frame is mounted on the torsion spring shaft. The pressure frame is rotatably connected to the support via the torsion spring shaft.

6. The photovoltaic cell string bonding and dispensing device according to claim 5, characterized in that, One end of the pressure frame is fixedly connected to a rubber pad, and the pressure frame contacts the surface of the battery cell through the rubber pad. The other end of the pressure frame is rounded.

7. The photovoltaic cell string bonding and dispensing device according to claim 5, characterized in that, The second elastic rotation component includes a second support and a second torsion spring shaft; The second support is fixedly connected to the transmission frame; A torsion spring shaft two is mounted on the support two, and a rotating disk is mounted on the torsion spring shaft two. The rotating disk is rotatably connected to the support two via the torsion spring shaft two, and the push plate is fixedly connected to a pair of rotating disks.

8. The photovoltaic cell string bonding and dispensing device according to claim 7, characterized in that, When the rounded end of the pressure frame contacts the push plate, the pressure frame is rotatably mounted on the support, and the pressure frame contacts the surface of the battery cell through the rubber pad.

9. The photovoltaic cell string bonding and dispensing device according to claim 8, characterized in that, When the pressure of the pressure frame pressing onto the battery cell is greater than the elastic force of the torsion spring on the second torsion spring shaft, the pressure frame passes over the push plate.

10. A photovoltaic cell string bonding and dispensing device according to any one of claims 1 to 3, characterized in that, Both sides of the cavity are equipped with light-shielding plates.

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