A cooling protection device for a solar screen

Abstract

The application relates to the technical field of solar screen preparation, in particular to a cooling protection device for solar screen preparation, which comprises a workbench, a hot pressing plate is vertically and slidably connected to the workbench, the hot pressing plate is wrapped with a heat dissipation frame, a heating groove penetrating through the center of the heat dissipation frame is formed, the hot pressing plate is located in the heating groove, the heat dissipation frame is hollow, cooling pipes are arranged in the heat dissipation frame, the cooling pipes comprise inlets and outlets, and cooling water flows in the cooling pipes. The hot pressing plate passes through the heating groove to heat-press the solar screen. The cooling water enters the cooling pipes from the inlets and flows out of the outlets, the cooling water enters the heat dissipation frame to dissipate heat and cool the heat dissipation frame located at the periphery of the hot pressing plate, so that the edges of the polyester screen cloth and the metal wire screen are cooled, the polyester screen cloth is protected, the polyester screen cloth is prevented from being damaged, and the product quality is improved.

Description

Technical Field

[0001] This application relates to the technical field of solar screen fabrication, and in particular to a cooling and protection device for solar screen fabrication. Background Technology

[0002] Solar cells are devices that convert light energy into electrical energy through the photoelectric effect or chemical effect. They play a core role in photovoltaic systems. Based on their advantages such as cleanliness, safety, and renewability, they play an important role in promoting the development of future energy and have broad development prospects.

[0003] Solar grid panels typically consist of a frame, polyester mesh, hot melt adhesive rings, and mesh fabric. The polyester mesh is fixedly installed inside the frame, and the hot melt adhesive rings connect the metal wire mesh and the polyester mesh.

[0004] In the manufacturing process of solar energy mesh, metal wire mesh and polyester mesh fabric are fixedly connected by hot melt adhesive. This requires heating. While the metal wire mesh has good heat resistance and can withstand high temperatures during heating, the polyester mesh fabric is prone to deformation and damage when exposed to high heat, affecting the final product quality. Summary of the Invention

[0005] To improve product quality, this application provides a cooling protection device for the preparation of solar grid panels.

[0006] The cooling and protection device for solar screen manufacturing provided in this application adopts the following technical solution: A cooling and protection device for solar grid fabrication includes a workbench with a hot press plate vertically slidably connected to it. The hot press plate is wrapped with a heat dissipation frame, and a through heating groove is opened in the center of the heat dissipation frame. The hot press plate is located in the heating groove. The heat dissipation frame is hollow and has a cooling pipe inside it. The cooling pipe includes an inlet and an outlet, and cooling water flows inside the cooling pipe.

[0007] By adopting the above technical solution, the hot press plate passes through the heating tank to hot press the solar grid. Cooling water enters from the inlet and flows out from the outlet. The cooling water enters the heat dissipation frame, which is located around the perimeter of the hot press plate, to dissipate heat and cool down the edge where the polyester mesh connects to the metal wire mesh. This protects the polyester mesh, prevents damage to the polyester mesh, and improves product quality.

[0008] Preferably, the heat dissipation frame includes a frame body and a bottom frame, the bottom frame is located below the frame body, the bottom frame is vertically slidably connected to the frame body, and the lower surface of the bottom frame is provided with a heat insulation pad.

[0009] By adopting the above technical solution, although the heat dissipation frame is cooled by cooling water, the heat conduction speed of water is relatively slow, while the heat dissipation frame itself is made of metal and conducts heat quickly. Therefore, the frame heats up rapidly in the initial stage, and the temperature is only reduced later due to the high specific heat of water. The high temperature of the heat dissipation frame at the beginning can still damage the polyester mesh. To avoid this, this application adds an additional heat insulation pad on the lower surface of the bottom frame to thermally insulate the bottom of the bottom frame and prevent the temperature of the bottom frame from rising too quickly and damaging the polyester mesh. Moreover, the bottom frame can be separated from the frame body. After a solar panel is hot-pressed, when the heat dissipation frame and the hot pressing block are lifted as a whole and the hot pressing operation is not performed, the bottom frame and the frame body separate. At this time, the frame body is in contact with the hot pressing block and is affected by the heat of the hot pressing block, while the bottom frame and the heat insulation pad are separated from the frame body and are not easily affected by the heat of the frame body. Therefore, the frame body and the heat insulation pad can cool down quickly, and the heat insulation pad is separated from the hot frame body and the hot pressing block, thus extending the service life of the heat insulation pad.

[0010] Preferably, the upper end of the bottom frame is fixed with several vertically arranged connecting rods, and the frame body has several connecting holes that are directly opposite to the connecting rods. The upper end of the connecting rod passes through the connecting hole, and the upper end of the connecting rod is provided with a connecting piece with a diameter larger than the connecting hole. A connecting spring is sleeved on the connecting rod, the upper end of the connecting spring abuts against the connecting piece, and the lower end of the connecting spring abuts against the heat dissipation frame. When the connecting spring is in its natural state, the bottom frame is separated from the frame body.

[0011] By adopting the above technical solution, the heat dissipation frame and the hot pressing block are raised and suspended above the worktable without hot pressing. At this time, the bottom frame descends and separates from the frame body under the action of the connecting spring, thereby reducing the impact of heat from the hot pressing block. When hot pressing is performed, the heat dissipation frame and the hot pressing block descend synchronously. The bottom frame first contacts the solar grid and the worktable. As the frame body and the hot pressing block continue to descend, the connecting spring is compressed, and the frame body and the hot pressing block continue to press against the bottom frame until the bottom frame contacts the bottom frame.

[0012] Preferably, the lower surface of the frame is provided with an upper heat dissipation groove, the upper surface of the bottom frame is provided with a lower heat dissipation groove that is directly opposite to the upper heat dissipation groove, the cooling pipe is fixed in the upper heat dissipation groove, and the lower part of the cooling pipe protrudes out of the upper heat dissipation groove.

[0013] By adopting the above technical solution, when the frame and the bottom frame are in contact and hot-pressed, the cooling pipe is embedded between the upper and lower heat dissipation grooves, and the cooling pipe simultaneously cools both the bottom frame and the frame, improving the cooling effect. When the frame and the bottom frame separate, the lower heat dissipation groove separates from the cooling pipe, and the lower heat dissipation groove on the upper surface of the bottom frame increases its contact area with the air, improving the heat dissipation effect.

[0014] Preferably, an observation plate is fixed inside the heat insulation pad, the observation plate extends from the edge of the bottom frame, the observation plate is made of ceramic, and the observation plate is coated with a heat-sensitive coating.

[0015] By employing the above technical solution, the observation plate, through its thermosensitive coating, can sense temperature. When the temperature of the observation plate is high, it will change color under the action of the thermosensitive coating. Operators can judge the temperature of the heat insulation pad by observing the color of the observation plate, and thus choose to increase the flow rate of cooling water, add additional cooling with a fan, or reduce the power of the hot plate, etc. When the temperature of the observation plate decreases, its temperature will change again. Operators can easily monitor the temperature of the heat insulation pad by observation, making it convenient to use.

[0016] Preferably, the upper surface of the heat insulation pad is fixed with an anti-stick sheet made of metal, and the anti-stick sheet is provided with several vertically arranged elastic pins around its perimeter. The lower surface of the bottom frame is fixed with mounting holes that mate with the elastic pins, and the upper ends of the elastic pins are installed in the mounting holes.

[0017] By adopting the above technical solution, the heat insulation pad is slidably connected to the bottom frame through an elastic pin, and the heat insulation pad can be separated from the bottom frame, thereby further protecting the heat insulation pad and improving its service life.

[0018] Preferably, the lower end of the elastic pin is rotatably connected to a screw, and the anti-sticking plate is provided with a screw hole that is threadedly connected to the screw.

[0019] By adopting the above technical solution, the elastic pin is detachably connected to the anti-stick plate via a screw, which facilitates the replacement of the heat insulation pad.

[0020] Preferably, the inner wall of the heating tank is fixed with a heat insulation layer for isolating the hot press block.

[0021] By adopting the above technical solution, the heat insulation layer separates the frame and the hot press block, thereby reducing the heat transfer rate from the hot press block to the frame to a certain extent.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting a hollow heat dissipation frame with built-in cooling pipes around the hot press plate, and with the heat insulation pad at the bottom of the bottom frame, the edge of the polyester mesh of the solar screen is protected by water cooling and heat insulation, so as to avoid the mesh from melting and being damaged by high temperature hot pressing, and improve the yield of screen processing. 2. The bottom frame and the frame body adopt a spring-type sliding separation structure. During hot pressing, they fit tightly and seal to ensure cooling effect. In standby mode, they automatically separate to reduce the heat of the bottom frame and extend the service life of the heat insulation pad. 3. Equipped with a ceramic observation plate with a thermal coating, the temperature of the heat insulation pad can be directly monitored without the need for electronically controlled temperature sensing elements, and the temperature control adjustment is convenient; the heat insulation pad is equipped with a metal anti-stick sheet and a threaded removable elastic pin, making disassembly and maintenance convenient and reducing equipment operation and maintenance costs; 4. An insulation layer is installed inside the heating tank to reduce heat transfer from the hot platen to the heat dissipation frame, reduce the load on the water cooling system, and make the cooling protection effect more stable and reliable. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the embodiment.

[0024] Explanation of reference numerals in the attached figures: 1. Workbench; 2. Hot press plate; 3. Heat dissipation frame; 31. Heating tank; 32. Frame body; 321. Connecting hole; 33. Bottom frame; 331. Lower heat dissipation tank; 4. Cooling pipe; 5. Heat insulation pad; 51. Observation plate; 6. Connecting rod; 61. Connecting piece; 62. Connecting spring; 7. Anti-stick sheet; 71. Elastic pin; 8. Heat insulation layer. Detailed Implementation

[0025] The present application will be further described in detail below with reference to all the accompanying drawings.

[0026] Example

[0027] This application discloses a cooling and protection device for solar screen fabrication, referring to... Figure 1 The system includes a workbench 1, on which a hot press plate 2 is slidably mounted vertically. A heat dissipation frame 3 is provided to cover the outside of the hot press plate 2. A heating groove 31, extending vertically through the center of the heat dissipation frame 3, is provided. The hot press plate 2 is assembled inside the heating groove 31. A heat insulation layer 8 is fixedly fitted to the inner wall of the heating groove 31. The heat insulation layer 8 is positioned between the hot press plate 2 and the heat dissipation frame 3, preventing the high temperature generated by the hot press plate 2 from being directly and extensively conducted to the metal heat dissipation frame 3, thus slowing down the heating rate of the heat dissipation frame 3 and preventing overheating damage to the edge of the lower screen caused by short-term high temperatures in the heat dissipation frame 3.

[0028] Reference Figure 1 The heat dissipation frame 3 has a hollow structure, with cooling pipes 4 installed inside. Each cooling pipe 4 has an inlet for cooling water and an outlet for cooling water, allowing the cooling water to circulate within it. During operation, the hot press plate 2 moves downwards through the heating groove 31 of the heat dissipation frame 3, performing hot pressing on the solar screen placed on the workbench 1. Cooling water flows in through the inlet and out through the outlet of the cooling pipes 4, continuously circulating within them. This circulating water cooling system effectively cools the entire heat dissipation frame 3, rapidly cooling the connection edge area between the polyester mesh and the metal wire mesh in the solar screen. This prevents the polyester mesh from aging and melting due to high-temperature hot pressing, effectively protecting the screen substrate and improving the finished product yield.

[0029] Reference Figure 1 The heat dissipation frame 3 consists of two parts: a frame body 32 and a bottom frame 33. The bottom frame 33 is located below the frame body 32, and the bottom frame 33 and the frame body 32 are vertically slidably assembled. A heat insulation pad 5 is attached to the lower surface of the bottom frame 33. Although the cooling pipe 4 can remove heat from the heat dissipation frame 3 through cooling water, the metal frame body 32 has a fast thermal conductivity, and the frame body 32 heats up quickly in the initial stage of hot pressing, which can still easily transfer excess heat to the polyester mesh below, causing damage. The heat insulation pad 5 can prevent the bottom frame 33 from transferring high temperature to the screen during the hot pressing process, avoiding heat damage to the polyester mesh. After a single hot pressing is completed and the hot pressing plate 2 and the heat dissipation frame 3 are lifted and separated from the workpiece, the bottom frame 33 can slide downward relative to the frame 32 to separate the two. The frame 32 continues to be exposed to the heat radiation of the hot pressing plate 2 and has a high temperature. Meanwhile, the bottom frame 33, together with the heat insulation pad 5, is separated from the high-temperature frame 32, which greatly reduces the degree of heat exposure of the bottom frame 33. This allows the bottom frame 33 to cool down quickly and naturally, and also significantly reduces the aging rate of the heat insulation pad 5 under long-term high-temperature environment, thus extending the service life of the heat insulation pad 5.

[0030] Reference Figure 1 Multiple vertically arranged connecting rods 6 are fixedly installed on the upper end of the base frame 33. A number of connecting holes 321, corresponding one-to-one with the connecting rods 6, are opened on the frame 32. The upper end of each connecting rod 6 extends upward through the corresponding connecting hole 321. A connecting piece 61 with an outer diameter larger than the connecting hole 321 is fixedly connected to the top of each connecting rod 6. A connecting spring 62 is sleeved on the outside of the connecting rod 6. The upper end of the connecting spring 62 abuts against the lower surface of the connecting piece 61, and the lower end of the connecting spring 62 abuts against the upper surface of the frame 32. When the connecting spring 62 is in its naturally extended state, the base frame 33 moves downward under the spring force, maintaining a separation gap with the frame 32. When the device is in a standby lifting state, the connecting spring 62 pushes the base frame 33 downward, separating the base frame 33 from the frame 32 and reducing heat absorption by the base frame 33. During the hot pressing operation, the hot pressing plate 2 and the heat dissipation frame 3 are fed downward as a whole. The bottom frame 33 will first contact and limit the solar grid and the workbench 1 surface. The frame 32 continues to move downward to compress the connecting spring 62 until the lower surface of the frame 32 is tightly attached to the upper surface of the bottom frame 33, thus completing the hot pressing sealing limit.

[0031] Reference Figure 1The lower surface of the frame 32 has an upper heat dissipation groove, and the upper surface of the bottom frame 33 has a lower heat dissipation groove 331 directly opposite the upper heat dissipation groove. The cooling pipe 4 is fixedly installed inside the upper heat dissipation groove, and the lower side wall of the cooling pipe 4 protrudes downward at the opening of the upper heat dissipation groove. When the frame 32 is pressed down and fits against the bottom frame 33, the cooling pipe 4 is clamped in the cavity formed by the upper heat dissipation groove and the lower heat dissipation groove 331, and the cooling water can simultaneously cool the frame 32 and the bottom frame 33 in both directions, effectively improving the overall cooling efficiency. When the frame 32 and the bottom frame 33 are separated, the lower heat dissipation groove 331 on the bottom frame 33 can increase the contact area between the bottom frame 33 and the outside air, accelerating the natural heat dissipation speed of the bottom frame 33.

[0032] Reference Figure 1 An observation plate 51 is embedded and fixed inside the heat insulation pad 5. One end of the observation plate 51 extends outward from the side of the bottom frame 33. The observation plate 51 is made of ceramic material and coated with a thermochromic coating. During operation, the heat insulation pad 5 continuously receives ambient heat, which is conducted to the ceramic observation plate 51. The thermochromic coating on the surface of the observation plate 51 changes color with temperature changes. Operators can visually determine the current temperature of the heat insulation pad 5 by observing the color of the observation plate 51. If the color indicates that the temperature is too high, the operator can adjust the temperature by increasing the cooling water circulation flow, adding a cooling fan for forced air cooling, or reducing the heating power of the hot plate 2. After the temperature drops, the color of the thermochromic coating will return to normal. Temperature monitoring is simple and intuitive, eliminating the need for additional temperature sensors and reducing equipment costs.

[0033] Reference Figure 1 A metal anti-stick sheet 7 is fixedly laid on the upper surface of the heat insulation pad 5. Multiple elastic pins 71 are vertically arranged around the anti-stick sheet 7. The lower surface of the bottom frame 33 has mounting holes that match each elastic pin 71. The upper end of the elastic pin 71 is inserted into the corresponding mounting hole. The heat insulation pad 5 is detachably assembled with the bottom frame 33 by means of the elastic pins 71. During the hot pressing process, the anti-stick sheet 7 can prevent the heat insulation pad 5 from sticking to the screen surface at high temperature. At the same time, when the heat insulation pad 5 ages or is damaged, the heat insulation pad 5 and the anti-stick sheet 7 can be directly removed from the bottom frame 33 for replacement, which is convenient for maintenance and effectively extends the overall service life of the device.

[0034] Reference Figure 1 Each elastic pin 71 has a screw rotatably connected to its lower end. The anti-sticking sheet 7 has a screw hole that matches the screw. The elastic pin 71 is locked and fixed to the anti-sticking sheet 7 by the screw. When the heat insulation pad 5 needs to be replaced, the elastic pin 71 and the anti-sticking sheet 7 can be separated by simply turning the screw. The disassembly and assembly are convenient and facilitate the individual replacement and maintenance of the heat insulation pad 5 and the anti-sticking sheet 7.

[0035] The implementation principle of the cooling and protection device for solar screen fabrication in this embodiment is as follows: The solar screen is placed at a designated position on the workbench 1. The hot press plate 2 and the heat dissipation frame 3 are fed downwards as a whole. The heat insulation pad 5 first contacts the screen. The frame 32 continues to press down, compressing the elastic pin 71 and the connecting spring 62, so that the frame 32, the bottom frame 33 and the heat insulation pad 5 are tightly fitted together. The hot press plate 2 extends from the heating tank 31 to hot press the screen. Cooling water continuously circulates in the cooling pipe 4, simultaneously water cooling the frame 32 and the bottom frame 33. The heat insulation pad 5 prevents the high temperature of the bottom frame 33 from directly contacting the polyester mesh. The observation plate 51 provides real-time feedback on the temperature of the heat insulation pad 5, facilitating timely temperature control and adjustment by the operator. After a single hot pressing process is completed, the hot press plate 2 and the heat dissipation frame 3 are lifted as a whole. The connecting spring 62 rebounds, causing the bottom frame 33 to separate from the frame 32. The bottom frame 33 is quickly cooled by air cooling through the heat dissipation tank 331. The heat insulation pad 5 is removed from the high-temperature heat source, slowing down aging, and awaits the next hot pressing cycle.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cooling and protection device for solar screen fabrication, comprising a workbench (1), wherein a hot press plate (2) is vertically slidably connected to the workbench (1), characterized in that: The hot press plate (2) is wrapped with a heat dissipation frame (3). The heat dissipation frame (3) has a through heating groove (31) in the center. The hot press plate (2) is located in the heating groove (31). The heat dissipation frame (3) is hollow. A cooling pipe (4) is opened in the heat dissipation frame (3). The cooling pipe (4) includes an inlet and an outlet. Cooling water flows in the cooling pipe (4).

2. The solar screen manufacturing cooling and protection device according to claim 1, characterized in that: The heat dissipation frame (3) includes a frame (32) and a bottom frame (33). The bottom frame (33) is located below the frame (32). The bottom frame (33) is vertically slidably connected to the frame (32). The lower surface of the bottom frame (33) is provided with a heat insulation pad (5).

3. The solar screen manufacturing cooling and protection device according to claim 2, characterized in that: The upper end of the bottom frame (33) is fixed with several vertically arranged connecting rods (6). The frame (32) has several connecting holes (321) that are directly opposite to the connecting rods (6). The upper end of the connecting rod (6) passes through the connecting hole (321). The upper end of the connecting rod (6) is provided with a connecting piece (61) with a diameter larger than the connecting hole (321). A connecting spring (62) is sleeved on the connecting rod (6). The upper end of the connecting spring (62) abuts against the connecting piece (61), and the lower end of the connecting spring (62) abuts against the heat dissipation frame (3). When the connecting spring (62) is in its natural state, the bottom frame (33) is separated from the frame (32).

4. The solar screen manufacturing cooling and protection device according to claim 3, characterized in that: The lower surface of the frame (32) is provided with a heat dissipation upper groove, and the upper surface of the bottom frame (33) is provided with a heat dissipation lower groove (331) that is directly opposite to the heat dissipation upper groove. The cooling pipe (4) is fixed in the heat dissipation upper groove, and the lower part of the cooling pipe (4) protrudes out of the heat dissipation upper groove.

5. A cooling and protection device for solar screen fabrication according to claim 2, characterized in that: An observation piece (51) is fixed inside the heat insulation pad (5). The observation piece (51) extends from the edge of the bottom frame (33). The observation piece (51) is made of ceramic and is coated with a heat-sensitive coating.

6. The solar screen manufacturing cooling and protection device according to claim 2, characterized in that: The heat insulation pad (5) has a metal anti-stick sheet (7) fixed on its upper surface. The anti-stick sheet (7) has several vertically arranged elastic pins (71) around its perimeter. The bottom frame (33) has a mounting hole that matches the elastic pin (71) fixed on its lower surface. The upper end of the elastic pin (71) is installed in the mounting hole.

7. A cooling and protection device for solar screen fabrication according to claim 6, characterized in that: The lower end of the elastic pin (71) is rotatably connected to a screw, and the anti-sticking plate (7) is provided with a screw hole that is threadedly connected to the screw.

8. The solar screen manufacturing cooling and protection device according to claim 1, characterized in that: The inner wall of the heating tank (31) is fixed with a heat insulation layer (8) for isolating the hot press block.

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