Solar cell clamping mechanism and processing device

Abstract

According to the solar cell clamping mechanism and the machining device, efficient and safe transfer of silicon wafers in the production process is achieved through the unique structural design of the solar cell clamping mechanism and the machining device. Compared with a traditional manual transfer mode, the device has the advantages that the risk that the silicon wafers are damaged in the carrying process is remarkably reduced, and meanwhile the production efficiency is improved. A driving force is provided to drive the transmission assembly to rotate so as to drive the pulling assembly to drive the clamping assembly to rotate, and finally the purpose of stably clamping the silicon wafer is achieved. The accurate cooperation of the transmission assembly and the pulling assembly enables the positioning of the silicon wafer to be more accurate, thereby improving the consistency of the production process and the product quality. On the whole, the production process of the solar cell is optimized, and powerful support is provided for improving the production efficiency and the product quality.

Description

Technical Field

[0001] The invention relates to the technical field of solar cell manufacturing, and in particular to a solar cell clamping mechanism and a processing device. Background Art

[0002] Silicon wafer solar cells have the advantages of simple process and high solar energy conversion efficiency. Therefore, silicon wafer solar cells occupy more than 90% of the photovoltaic market and are widely used.

[0003] In the prior art, in order to transfer multiple semiconductor wafers (silicon wafers) stored in the warehouse or storage room of the manufacturing plant to the cleaning or loading department and then use them in the semiconductor factory, it is usually necessary to manually move each wafer or use mechanical equipment to place it on a transport vehicle. The production of silicon wafer solar energy requires multiple production processes such as coating, texturing, sintering, diffusion, and testing of silicon wafers, and silicon wafers need to be transported between multiple production processes. However, if taken out directly from the wafer stack, not only will the handling process become difficult, but the wafer may also be damaged. This not only affects the transportation efficiency of the silicon wafer conveyor and the silicon wafer conveying device, but may also have an adverse effect on the production process. Therefore, it is necessary to improve the handling method to improve transportation efficiency and reduce potential damage risks. Summary of the invention

[0004] The purpose of the present invention is to propose a solar cell clamping mechanism and processing device to effectively solve various problems caused by manual transfer of silicon wafers during transportation of multiple production processes such as coating, texturing, sintering, diffusion, and testing of silicon wafers.

[0005] To achieve the above object, the present invention provides a solar cell clamping mechanism, comprising:

[0006] A placement rack for placing silicon wafers to be processed;

[0007] A transmission assembly, a pulling assembly and a driving assembly are arranged above the placement rack. The transmission assembly and the pulling assembly are arranged for alternating transmission. The pulling assembly is also connected to the driving assembly. When any one of the transmission assemblies is started, it drives the pulling assembly and the driving assembly to rotate, so that the pulling assembly clamps or releases the silicon wafer.

[0008] Furthermore, the placement rack is connected to an alignment bar, the alignment bar has a positioning groove, a positioning rod is arranged in the positioning groove, and a shell is arranged on the positioning rod.

[0009] Furthermore, a portion of the transmission assembly and the pulling assembly are arranged in the housing.

[0010] Furthermore, the solar cell clamping mechanism also includes a driving unit, which is arranged on the top of the shell and connected to the transmission assembly.

[0011] Furthermore, the transmission assembly includes:

[0012] A transmission shaft is rotatably connected to the interior of the housing; at least one of the transmission shafts is connected to and extends above the housing and is connected to the drive unit;

[0013] The transmission gear is sleeved on the transmission shaft and fixedly connected to the transmission shaft.

[0014] Furthermore, the pulling assembly includes a first part, a second part, a third part and a clamping assembly, the first part is connected to the transmission assembly, and the rotation of the transmission assembly is transmitted to the clamping assembly through the second part and the third part.

[0015] Furthermore, the first part includes:

[0016] Pull the gear to mesh with the transmission gear;

[0017] The internal threaded cylinder is coaxially fixedly connected with the pulling gear.

[0018] Furthermore, the second part includes:

[0019] An adjusting threaded rod, the upper end of which is threadedly connected to the internal threaded barrel, passes through the pulling gear and the interior of the internal threaded barrel, and extends to the top of the housing;

[0020] The adjusting rack is fixedly connected to the lower end of the adjusting threaded rod, and the side wall is meshed with the driving gear and is slidably connected to the mounting shell.

[0021] Furthermore, the third part is a driving gear.

[0022] Furthermore, the pulling assembly further comprises a jacket disposed below the outer shell, and a clamping claw connected to the jacket, and the clamping assembly is disposed inside the jacket and extends into the inside of the clamping claw.

[0023] Furthermore, the pulling assembly also includes a mounting shell arranged between the two jackets, and the interior of the mounting shell is rotatably connected with driving gears that are symmetrically distributed on the left and right and extend to the interior of the jackets.

[0024] Furthermore, the clamping assembly comprises:

[0025] A fixing seat, fixedly connected to the inside of the jacket;

[0026] A clamping gear, rotatably connected to the fixing seat;

[0027] The clamping rod extends to the interior of the clamping claw and is fixedly connected to the outer surface of the clamping gear.

[0028] Furthermore, the solar cell clamping mechanism also includes a driving assembly connected to the lower side of the pulling assembly, and the driving assembly includes:

[0029] A sliding rod fixedly connected to the interior of the jacket;

[0030] A sliding rack, one end of which is slidably connected to the outer surface of the sliding rod, and a side wall of which is meshed with the driving gear;

[0031] A driving gear block has one end fixedly connected to the sliding rack and the other end meshing with the clamping gear.

[0032] The present invention also provides a solar cell processing device, comprising the solar cell clamping mechanism described above.

[0033] Furthermore, the processing device also includes a moving mechanism, which is connected to the solar cell clamping mechanism. When the solar cell clamping mechanism clamps the silicon wafer, the moving mechanism can drive the solar cell clamping mechanism to move.

[0034] Compared with the prior art, the solar cell clamping mechanism and processing device of the present invention have at least the following beneficial effects:

[0035] The present invention provides a solar cell clamping mechanism and processing device, which realizes efficient and safe transfer of silicon wafers during the production process through its unique structural design. Compared with the traditional manual transfer method, the device significantly reduces the risk of silicon wafers being damaged during the handling process and improves production efficiency.

[0036] The present invention provides a driving force source to drive the transmission component to rotate, which in turn drives the pulling component to drive the holding component to rotate, and finally achieves the purpose of stably clamping the silicon wafer. The precise coordination of the transmission component and the pulling component makes the positioning of the silicon wafer more accurate, thereby improving the consistency of the production process and the product quality. Overall, the present invention not only optimizes the production process of solar cells, but also provides strong support for improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0038] Figure 2 A schematic top view of a placement rack in one embodiment of the present invention;

[0039] Figure 3 It is a schematic diagram of the side structure in one embodiment of the present invention;

[0040] Figure 4 It is a schematic side cross-sectional view of a driving assembly in one embodiment of the present invention;

[0041] Figure 5 An embodiment of the present invention Figure 4 A local enlarged schematic diagram of point A in the middle.

[0042] In the figure, 1. placement rack; 2. alignment bar; 21. positioning groove; 3. silicon wafer; 4. shell; 5. positioning rod; 6. jacket; 61. clamping claw; 7. mounting shell; 8. transmission assembly; 81. transmission shaft; 82. transmission gear; 9. hexagonal column; 10. first part; 101. pulling internal threaded cylinder; 102. pulling gear; 11. second part; 111. adjusting threaded rod; 112. adjusting rack; 12. driving gear; 13. clamping assembly; 131. fixing seat; 132. clamping gear; 133. clamping rod; 14. driving assembly; 141. sliding rod; 142. sliding rack; 143. driving gear block; 15. lifting handle. DETAILED DESCRIPTION

[0043] A solar cell clamping mechanism and processing device of the present invention will be described in more detail below in conjunction with the accompanying drawings, wherein preferred embodiments of the present invention are shown. It should be understood that those skilled in the art can modify the present invention described herein while still achieving the beneficial effects of the present invention. Therefore, the following description should be understood as being widely known to those skilled in the art and not as a limitation of the present invention.

[0044] The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and are not in exact proportions, and are only used to facilitate and clearly assist in illustrating the purpose of the embodiments of the present invention.

[0045] Example 1

[0046] like Figures 1 to 5 As shown, this embodiment provides a solar cell clamping mechanism, comprising:

[0047] The placement rack 1 is used to place the silicon wafers 3 to be processed. The material of the placement rack 1 is preferably stainless steel. Stainless steel is not only corrosion-resistant and high-temperature-resistant, but also small in size and compact in structure, and is also easier to install and unload.

[0048] The transmission assembly 8, the pulling assembly and the driving assembly 14 are arranged above the placement rack 1. The transmission assembly 8 and the pulling assembly are arranged to transmit alternately, and the pulling assembly is also connected to the driving assembly 14. When any of the transmission assemblies 8 is started, the pulling assembly and the driving assembly 14 are driven to rotate, so that the pulling assembly clamps or releases the silicon wafer 3.

[0049] like Figure 2 As shown, in this embodiment, an alignment bar 2 is fixedly connected to the back side of the placement rack 1, and the top of the alignment bar 2 is provided with positioning grooves 21 distributed at equal distances in the longitudinal direction.

[0050] Furthermore, the bottom of the shell 4 is fixedly connected with positioning rods 5 distributed in a rectangular array and adapted to the positioning groove 21. During use, the positioning rods 5 need to be inserted into the positioning groove 21 first to fix the shell 4 on the placement rack 1 for subsequent clamping of the silicon wafer 3.

[0051] Furthermore, there are multiple transmission components 8, which are laterally distributed inside the housing 4. This arrangement can ensure the synchronization and smoothness of transmission between the components, reduce losses during transmission loading and transmission, and achieve efficient and synchronous transmission.

[0052] A portion of the pulling assembly is disposed inside the housing 4 and is connected to the transmission assembly 8 , so that the transmission assembly 8 drives the pulling assembly to rotate during the rotation process.

[0053] In one example, the transmission assembly 8 and the pulling assembly are disposed in the housing 4 .

[0054] Furthermore, a driving unit is provided on the top of the housing 4 and is connected to the transmission assembly 8 .

[0055] For reference Figure 4 As shown, preferably, the driving unit is a hexagonal column 9, which can be connected to the top of the middle transmission assembly 8 and extend to the top of the housing 4, and is used to control the rotation of the transmission assembly 8. The hexagonal column 9 can be connected to the transmission shaft 81 of the middle transmission assembly 8, and its uniform layout up and down also makes it easier to connect the housing 4 and the transmission assembly 8, and its hexagonal structure is more durable.

[0056] In other examples, the hexagonal column 9 may also be connected to other transmission components 8 .

[0057] It is understandable that the driving unit may also be other structures, such as a stepping motor, or a structure driven by other external devices.

[0058] Please continue to refer to Figure 4 The transmission assembly 8 includes: a transmission shaft 81, which is rotatably connected to the inside of the shell 4 at equal distances in the longitudinal direction; the top of the transmission shaft 81 in the center can be connected and extended to the top of the shell 4, and is rotatably connected to the hexagonal column 9; a transmission gear 82, which is fixedly connected to the outer surface of the transmission shaft 81.

[0059] Please continue to refer to Figure 4 The pulling assembly includes three parts, wherein the first part 10 includes: an internally threaded barrel 101 and a pulling gear 102, wherein the pulling gear 102 is meshed with the transmission gear 82, whereby the pulling gear 102 and the transmission gear 82 are spaced apart and meshed with each other, so that when any of the transmission gears 82 is driven, the pulling gear 102 and the other transmission gears 82 can rotate; the internally threaded barrel 101 is fixedly connected to the pulling gear 102, and when the pulling gear 102 rotates, the internally threaded barrel can be driven to rotate together.

[0060] The internal threaded cylinder 101 can be welded to the pulling gear 102, for example, or can be nested together through interference fit.

[0061] In the embodiment of the present invention, the second part 11 of the pulling assembly is connected to the first part 10. Specifically, the second part 11 includes: an adjusting threaded rod 111 and an adjusting rack 112. The upper end of the adjusting threaded rod 111 is threadedly connected to the internal threaded tube 101, and can pass through the pulling gear 102 and the interior of the internal threaded tube, and extend to the top of the outer shell 4; thus, when the pulling gear 102 rotates, the adjusting threaded rod 111 can move up and down. The adjusting rack 112 is fixedly connected to the lower end of the adjusting threaded rod 111, so that it can move up and down. The teeth of the adjusting rack 112 are arranged on opposite sides, parallel to the up and down movement direction.

[0062] The adjusting rack 112 may be, for example, a flat structure or a cylindrical structure.

[0063] As an example, the adjusting threaded rod 111 and the adjusting rack 112 may be an integrally formed structure, that is, the two may be processed from the same component, with threads being processed on the upper half and teeth being processed on both sides of the lower half along a certain diameter direction.

[0064] In the embodiment of the present invention, the third part of the pulling assembly is a driving gear 12 adapted to the adjusting rack 112 , and the adjusting rack 112 is meshed with the driving gear 12 , so that when the adjusting rack 112 moves up and down, the driving gear 12 can rotate.

[0065] In the embodiment of the present invention, the pulling assembly further includes a plurality of jackets 6 and a mounting shell 7 located below the outer shell 4 . The mounting shell 7 is disposed between the jackets 6 , and a portion of the adjusting rack 112 in the pulling assembly is located in the mounting shell 7 .

[0066] The installation shell 7 is disposed between two adjacent jackets 6 . Specifically, the installation shell 7 may be disposed at every two jackets 6 .

[0067] The driving gear 12 is located above the connection between the mounting shell 7 and the jacket 6 , so that the driving gear 12 can be protected.

[0068] The multiple jackets 6 are longitudinally distributed at the bottom of the housing 4 and are used to clamp the silicon wafers 3 to be processed, thereby ensuring the consistency of processing of each silicon wafer 3 and reducing the structure volume to better utilize the internal space.

[0069] The driving assembly 14 is provided in the jacket 6, and the driving gear 12 is also connected to the driving assembly 14. The driving assembly 14 includes: a sliding rod 141, which is fixedly connected to the inside of the jacket 6; a sliding rack 142, which is slidingly connected to the sliding rod 141, and the toothed side of the sliding rack is meshed with the driving gear 12; a driving gear block 143, one end of which is fixedly connected to the sliding rack 142, and the other end is connected to the clamping assembly 13.

[0070] Please combine Figure 4 and Figure 5 As shown, the pulling assembly also includes a clamping assembly 13, which is arranged in the sleeve 6 and the clamping claw 61 thereunder, and the clamping assembly 13 includes: a fixed seat 131, fixedly connected to the bottom of the housing 4; a clamping gear 132, rotatably connected to the fixed seat 131 and meshing with the driving gear block 143; a clamping rod 133, extending to the interior of the clamping claw 61 and fixedly connected to the outer surface of the clamping gear 132.

[0071] Furthermore, a lifting handle 15 symmetrically distributed on the left and right is fixedly connected to the top of the housing 4 for facilitating lifting during the processing and circulation of the silicon wafer 3 .

[0072] In the embodiment of the present invention, when the silicon wafer 3 needs to be processed, the hexagonal column 9 can be rotated to drive the transmission shaft 81 fixedly connected thereto to rotate, thereby causing the transmission gear 82 to rotate, and the transmission gear 82 can drive the pulling gear 102 meshed therewith to rotate, thereby driving the pulling internal threaded barrel 101 to rotate, and at the same time, the gear 102 is pulled to drive the other meshed transmission gears 82 to rotate. During the rotation of the internal threaded barrel 101, the adjustment threaded rod 111 is driven by the thread to move upward, thereby driving the adjustment rack 112 to move upward, and the adjustment rack 112 can cause the driving gear 12 meshed therewith to rotate. The driving gear 12 drives the sliding rack 142 to move downward, thereby driving the driving gear block 143 to move downward, which can drive the clamping gear 132 to rotate, and then make the clamping rod 133 deflect around the clamping gear 132, thereby driving the two adjacent dynamic clamping claws 61 to move toward each other, so that the clamping claws 61 can fit tightly with the silicon wafer 3 to facilitate movement to other positions.

[0073] In this process, the embodiment of the present invention can ensure the consistency and synchronization of each silicon wafer 3 during the transfer process, realize the safe transfer of multiple silicon wafers at one time, and reduce the structure volume to better utilize the internal space.

[0074] Example 2

[0075] This embodiment provides a solar cell processing device, including the solar cell clamping mechanism as described in Embodiment 1.

[0076] In addition, the processing device further comprises a moving mechanism, and the moving mechanism is connected to the solar cell clamping mechanism. When the solar cell clamping mechanism clamps the silicon wafer, the moving mechanism can drive the solar cell clamping mechanism to move.

[0077] Correspondingly, this embodiment can have the corresponding effects of the first embodiment, which will not be described in detail here.

[0078] Specifically, the processing device in this embodiment can be applied to multiple process nodes such as coating, texturing, sintering, diffusion, and detection.

[0079] In summary, the solar cell clamping mechanism and processing device provided by the embodiments of the present invention achieve the following effects:

[0080] Through its unique structural design, efficient and safe transfer of silicon wafers in the production process is achieved. Compared with the traditional manual transfer method, the device significantly reduces the risk of damage to silicon wafers during handling, while improving production efficiency. By rotating the hexagonal column, the transmission component can be driven to rotate, which in turn drives the pulling component and then drives the adjustment component to rotate, ultimately achieving the purpose of stably clamping the silicon wafer. The equidistant distribution of the jacket ensures the stable fixation of the silicon wafer, and the precise coordination of the transmission component and the pulling component makes the positioning of the silicon wafer more accurate, thereby improving the consistency of the production process and the quality of the product. Overall, the present invention not only optimizes the production process of solar cells, but also provides strong support for improving production efficiency and product quality.

[0081] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A solar cell clamping mechanism, characterized in that: include: A placement rack for placing silicon wafers to be processed; A transmission assembly, a pulling assembly and a driving assembly are arranged above the placement rack. The transmission assembly and the pulling assembly are arranged for alternating transmission. The pulling assembly is also connected to the driving assembly. When any one of the transmission assemblies is started, it drives the pulling assembly and the driving assembly to rotate, so that the pulling assembly clamps or releases the silicon wafer.

2. The solar cell clamping mechanism according to claim 1, characterized in that: The placement rack is connected with an alignment bar, a positioning groove is provided in the alignment bar, a positioning rod is arranged in the positioning groove, and a shell is arranged on the positioning rod.

3. The solar cell clamping mechanism according to claim 2, characterized in that: The transmission assembly and a portion of the pulling assembly are arranged in the housing.

4. The solar cell clamping mechanism according to claim 3, characterized in that: It also includes a driving unit, which is arranged on the top of the shell and connected to the transmission assembly.

5. The solar cell clamping mechanism according to claim 4, characterized in that: The transmission assembly comprises: A transmission shaft, rotatably connected to the interior of the housing; at least one of the transmission shafts extends above the housing and is connected to the drive unit; The transmission gear is sleeved on the transmission shaft and fixedly connected to the transmission shaft.

6. The solar cell clamping mechanism according to claim 1, characterized in that: The pulling assembly includes a first part, a second part, a third part and a clamping assembly. The first part is connected to the transmission assembly and transmits the rotation of the transmission assembly to the clamping assembly through the second part and the third part.

7. The solar cell clamping mechanism according to claim 6, characterized in that: The first part includes: Pull the gear to mesh with the transmission gear; The internal threaded cylinder is coaxially fixedly connected with the pulling gear.

8. The solar cell clamping mechanism according to claim 7, characterized in that: The second part includes: An adjusting threaded rod, the upper end of which is threadedly connected to the internal threaded barrel, passes through the pulling gear and the interior of the internal threaded barrel, and extends to the top of the housing; The adjusting rack is fixedly connected to the lower end of the adjusting threaded rod, and the side wall is meshed with the driving gear and is slidably connected to the mounting shell.

9. The solar cell clamping mechanism according to claim 7, characterized in that: The third part is a driving gear.

10. The solar cell clamping mechanism according to claim 9, characterized in that: The pulling assembly further comprises a jacket arranged below the outer shell, and a clamping claw connected to the jacket, and the clamping assembly is arranged inside the jacket and extends to the inside of the clamping claw.

11. The solar cell clamping mechanism according to claim 10, characterized in that: The pulling assembly further comprises a mounting shell arranged between the two jackets, and the interior of the mounting shell is rotatably connected with the driving gears which are symmetrically distributed on the left and right and extend to the interior of the two jackets.

12. The solar cell clamping mechanism according to claim 11, characterized in that: The clamping assembly comprises: A fixing seat, fixedly connected to the inside of the jacket; A clamping gear, rotatably connected to the fixing seat; The clamping rod extends to the interior of the clamping claw and is fixedly connected to the outer surface of the clamping gear.

13. The solar cell clamping mechanism according to claim 12, characterized in that: It also includes a driving assembly connected to the lower part of the pulling assembly, and the driving assembly includes: A sliding rod fixedly connected to the interior of the jacket; A sliding rack, one end of which is slidably connected to the outer surface of the sliding rod, and a side wall of which is meshed with the driving gear; A driving gear block has one end fixedly connected to the sliding rack and the other end meshing with the clamping gear.

14. A solar cell processing device, characterized in that: Includes any one of the solar cell clamping mechanisms described in 1 to 11.

15. The solar cell processing device according to claim 14, characterized in that: The processing device further comprises a moving mechanism, which is connected to the solar cell clamping mechanism. When the solar cell clamping mechanism clamps the silicon wafer, the moving mechanism can drive the solar cell clamping mechanism to move.

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