Photovoltaic cell blow-drying rack

Abstract

The utility model relates to the technical field of battery piece processing, in particular to a photovoltaic battery piece blow-drying frame which comprises a drying frame, a fixed top plate is arranged at the upper end of the drying frame, a silicon wafer body is placed in the drying frame, and a circulating feeding mechanism used for conveying the silicon wafer body is arranged in the drying frame. The upper end of the drying frame is provided with a rapid air-drying mechanism used for drying the silicon wafer body, the circulating feeding mechanism comprises a rotating circular shaft movably installed in the drying frame, and the back face of the drying frame is fixedly provided with a driving motor used for driving the rotating circular shaft. According to the utility model, the circulating feeding mechanism is arranged, and the rotating circular shaft and the limiting clamping block are matched with each other, so that the silicon wafer body can intermittently horizontally move rightwards in a vertical state, the continuous operation is realized, and in the blowing drying process, the two side surfaces of the silicon wafer body can be dried at the same time, and the drying efficiency is improved. Therefore, water drops on the outer side wall of the silicon wafer body quickly slide down, and the blowing drying efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery sheet processing, in particular to a photovoltaic battery sheet drying rack. Background Art

[0002] During the production process, the battery cell needs to go through multiple steps such as cleaning, texturing, diffusion, and edge etching. Before preparing the texturing, the silicon wafer must first undergo preliminary surface corrosion, and then chemical cleaning after etching the texturing surface, and then rinse with clean water. As we all know, chemically cleaned silicon wafers should not be stored in water for a long time to prevent contamination by impurities. Therefore, after cleaning and texturing, the battery cell needs to be dried with hot air to remove the residual moisture on the battery cell.

[0003] In the prior art, when people blow air to dry battery cells, the battery cells are often in a horizontal state, and water droplets on the surface are not easy to fall off. The water droplets can only be evaporated by increasing the temperature of the fan, which will cause certain damage to the battery cells. Moreover, only one side can be dried at a time, and continuous operation cannot be achieved, which is inefficient. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a photovoltaic cell drying rack, which solves the technical problem in the prior art that people cannot achieve continuous operation when blow-drying the cells and the efficiency is relatively low. It has the advantage of being able to continuously blow-dry multiple cells at the same time, which can effectively improve the processing efficiency.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a photovoltaic cell drying rack, comprising a drying rack, a fixed top plate is arranged at the upper end of the drying rack, a silicon wafer body is placed inside the drying rack, a circulating feeding mechanism for conveying the silicon wafer body is arranged inside the drying rack, a fast air drying mechanism for drying the silicon wafer body is arranged at the upper end of the drying rack, during the process of the circulating feeding mechanism conveying the silicon wafer body horizontally, the fast air drying mechanism will blow off the water droplets on the surface of the silicon wafer body, so that the silicon wafer body is in a dry state, the circulating feeding mechanism includes a movable installation A driving motor for driving the rotating circular shaft is fixedly installed on the back of the drying rack. A first rotating wheel and a second rotating wheel are symmetrically installed on the front and back sides of the inner cavity of the drying rack. The external transmission of the rotating circular shaft is connected with a driving pulley. A transmission belt is arranged on the outside of the driving pulley. Several groups of limit blocks are arranged at equal intervals on the outer surface of the transmission belt. A feeding square groove and a material removal square groove are opened on the fixed top plate. During the blow-drying process, the staff will put the silicon wafer body into the drying rack through the feeding square groove, and then the limit block will clamp and limit the lower end of the silicon wafer body.

[0006] Preferably, the rapid air drying mechanism includes a hot air blower fixedly mounted on the upper end of the fixed top plate, the exhaust port of the hot air blower extends to the bottom of the fixed top plate and is fixedly mounted with a hot air nozzle, a circular through groove is penetrated through the lower surface of the drying rack, and a water collecting box is provided at the lower end of the drying rack, when the silicon wafer body passes under the hot air nozzle, the downwardly flowing hot air will blow off the water droplets on the surface of the silicon wafer body.

[0007] Preferably, two driving pulleys are provided, and the two driving pulleys are respectively connected to the first rotating wheel and the second rotating wheel for transmission. When the rotating shaft rotates, the first rotating wheel and the second rotating wheel will rotate synchronously through the driving pulley and the transmission belt.

[0008] Preferably, the limit block is made of rubber material, and the distance between two adjacent limit blocks is smaller than the thickness of the silicon wafer body. When the staff puts the silicon wafer body between the two limit blocks, the limit blocks will limit the silicon wafer body to keep it in a vertical state.

[0009] Preferably, the water collection box is detachably mounted on the lower end of the drying rack, and water droplets on the surface of the silicon wafer body fall downward and fall into the interior of the water collection box through the circular groove.

[0010] By means of the above technical solution, the utility model provides a photovoltaic cell drying rack, which has at least the following beneficial effects:

[0011] 1. The utility model sets a circulating feeding mechanism and utilizes the mutual cooperation between the rotating circular shaft and the limit block to make the silicon wafer body intermittently move horizontally to the right in a vertical state, thereby realizing continuous operation. Moreover, during the air drying process, the two sides of the silicon wafer body can be dried at the same time, so that the water droplets on the outer wall of the silicon wafer body slide down quickly, which greatly improves the efficiency of air drying.

[0012] 2. The utility model is provided with a rapid air-drying mechanism, and utilizes the cooperation between the hot air blower and the water collecting box to automatically and quickly collect the fallen water droplets, so as to avoid the water droplets from accumulating inside the drying rack for a long time and causing adverse effects on the drying process. Moreover, the water collecting box can be freely disassembled, and the drying process can continue when it is disassembled, without stopping and waiting. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0014] Figure 1 It is a front view of the overall structure of the utility model;

[0015] Figure 2It is an internal schematic diagram of the circulating feeding mechanism in the utility model;

[0016] Figure 3 It is a schematic diagram of the drying box structure in the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the water collecting box 404 in the utility model.

[0018] In the figure: 1. Drying rack; 2. Fixed top plate; 3. Circular feeding mechanism; 301. Rotating circular shaft; 302. Driving motor; 303. First rotating wheel; 304. Second rotating wheel; 305. Driving pulley; 306. Transmission belt; 307. Limiting block; 308. Feeding square trough; 309. Removing square trough; 4. Quick air drying mechanism; 401. Hot air blower; 402. Hot air nozzle; 403. Circular through groove; 404. Water collecting box; 5. Silicon wafer body. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] according to Figure 1-Figure 4 As shown, a photovoltaic cell drying rack comprises a drying rack 1, a fixed top plate 2 is arranged at the upper end of the drying rack 1, a silicon wafer body 5 is placed inside the drying rack 1, a circulating feeding mechanism 3 for conveying the silicon wafer body 5 is arranged inside the drying rack 1, a fast air drying mechanism 4 for drying the silicon wafer body 5 is arranged at the upper end of the drying rack 1, when the circulating feeding mechanism 3 conveys the silicon wafer body 5 horizontally, the fast air drying mechanism 4 will blow off the water droplets on the surface of the silicon wafer body 5, so that the silicon wafer body 5 is in a dry state.

[0022] Specifically, the circulating feeding mechanism 3 includes a rotating circular shaft 301 movably installed inside the drying rack 1, a driving motor 302 for driving the rotating circular shaft 301 is fixedly installed on the back of the drying rack 1, a first rotating wheel 303 and a second rotating wheel 304 are symmetrically installed on the front and rear sides of the inner cavity of the drying rack 1, and the external transmission of the rotating circular shaft 301 is connected with a driving pulley 305, and two driving pulleys 305 are provided. The two driving pulleys 305 are respectively connected to the first rotating wheel 303 and the second rotating wheel 304. When the rotating circular shaft 301 rotates, the first rotating wheel 303 and the second rotating wheel 304 will rotate synchronously through the driving pulley 305 and the transmission belt 306. A transmission belt 306 is arranged on the outside, and a plurality of groups of limit blocks 307 are arranged at equal intervals on the outer surface of the transmission belt 306. The limit blocks 307 are made of rubber material, and the distance between two adjacent limit blocks 307 is less than the thickness of the silicon wafer body 5. When the staff puts the silicon wafer body 5 between the two limit blocks 307, the limit blocks 307 will limit the silicon wafer body 5 to keep it in a vertical state. A feed square groove 308 and a material removal square groove 309 are provided on the fixed top plate 2. During the blow-drying process, the staff will put the silicon wafer body 5 into the drying rack 1 through the feed square groove 308, and then the limit block 307 will clamp and limit the lower end of the silicon wafer body 5.

[0023] Specifically, the quick air drying mechanism 4 includes a hot air blower 401 fixedly installed on the upper end of the fixed top plate 2, the exhaust port of the hot air blower 401 extends to the bottom of the fixed top plate 2 and is fixedly installed with a hot air nozzle 402, a circular through groove 403 is penetrated through the lower surface of the drying rack 1, and a water collecting box 404 is provided at the lower end of the drying rack 1, and the water collecting box 404 is detachably installed at the lower end of the drying rack 1. When the silicon wafer body 5 passes under the hot air nozzle 402, the downwardly flowing hot air will blow off the water droplets on the surface of the silicon wafer body 5. After the water droplets on the surface of the silicon wafer body 5 fall downward, they will fall into the interior of the water collecting box 404 through the circular through groove 403.

[0024] In this embodiment, when in use, the staff will place the silicon wafer body 5 into the interior of the drying rack 1 through the feeding square groove 308, and press the silicon wafer body 5 between the two limit blocks 307. Next, the rotating circular shaft 301 will rotate clockwise under the action of the driving motor 302. When the rotating circular shaft 301 rotates, it will cooperate with the transmission belt 306 to make the first rotating wheel 303 and the second rotating wheel 304 rotate synchronously, thereby intermittently transporting the silicon wafer body 5 horizontally to the right.

[0025] At the same time, the hot air blower 401 will blow air vertically downward through the hot air nozzle 402. Therefore, when the silicon wafer body 5 passes under the hot air nozzle 402, the downward flowing hot air will blow off the water droplets on the surface of the silicon wafer body 5 and quickly dry it. After drying, the silicon wafer body 5 will move to the bottom of the material trough 309 under the action of the transmission belt 306. Next, the staff will pull the silicon wafer body 5 out.

[0026] In addition, after the water droplets on the surface of the silicon wafer body 5 are blown off, they will fall into the inside of the water collection box 404 through the circular groove 403. After working continuously for a certain period of time, the staff will remove the water collection box 404, pour out the water inside it, and then install it back to the lower end of the drying rack 1.

[0027] In this embodiment, a circulating feeding mechanism 3 is provided, and the cooperation between the rotating circular shaft 301 and the limiting block 307 is utilized to make the silicon wafer body 5 intermittently move horizontally to the right in a vertical state, thereby realizing continuous operation. Moreover, during the air-drying process, the two side surfaces of the silicon wafer body 5 can be dried at the same time, so that the water droplets on the outer wall of the silicon wafer body 5 can quickly slide down, thereby greatly improving the efficiency of air-drying. In addition, in this embodiment, a fast air-drying mechanism 4 is provided, and the cooperation between the hot air blower 401 and the water collecting box 404 is utilized to automatically collect the fallen water droplets quickly, thereby preventing the water droplets from accumulating inside the drying rack 1 for a long time and causing adverse effects on the drying process. Moreover, the water collecting box 404 can be freely disassembled, and the drying process can still be continued during disassembly without stopping and waiting.

[0028] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic cell drying rack, comprising a drying rack (1), wherein a fixed top plate (2) is arranged at the upper end of the drying rack (1), and a silicon wafer body (5) is placed inside the drying rack (1), characterized in that: The drying rack (1) is provided with a circulating feeding mechanism (3) for conveying the silicon wafer body (5), and the upper end of the drying rack (1) is provided with a rapid air drying mechanism (4) for drying the silicon wafer body (5); The circulating feeding mechanism (3) comprises a rotating shaft (301) movably mounted inside the drying rack (1); a driving motor (302) for driving the rotating shaft (301) is fixedly mounted on the back of the drying rack (1); a first rotating wheel (303) and a second rotating wheel (304) are symmetrically mounted on the front and rear sides of the inner cavity of the drying rack (1); the rotating shaft (301) is externally connected to a driving pulley (305); a driving belt (306) is disposed outside the driving pulley (305); a plurality of groups of limit blocks (307) are evenly spaced on the outer surface of the driving belt (306); and a feeding square groove (308) and a material taking square groove (309) are provided on the fixed top plate (2).

2. A photovoltaic cell drying rack according to claim 1, characterized in that: The rapid air-drying mechanism (4) comprises a hot air blower (401) fixedly mounted on the upper end of the fixed top plate (2); an exhaust port of the hot air blower (401) extends to the lower end of the fixed top plate (2) and is fixedly mounted with a hot air nozzle (402); a circular through groove (403) is formed through the lower surface of the drying rack (1); and a water collecting box (404) is provided at the lower end of the drying rack (1).

3. A photovoltaic cell drying rack according to claim 1, characterized in that: Two driving pulleys (305) are provided, and the two driving pulleys (305) are respectively connected to the first rotating wheel (303) and the second rotating wheel (304) in transmission.

4. A photovoltaic cell drying rack according to claim 1, characterized in that: The limiting block (307) is made of rubber material, and the distance between two adjacent limiting blocks (307) is smaller than the thickness of the silicon chip body (5).

5. A photovoltaic cell drying rack according to claim 2, characterized in that: The water collecting box (404) is detachably mounted on the lower end of the drying rack (1).

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