Chain type oxidation furnace oil receiving device for producing battery pieces

Abstract

The utility model relates to the technical field of chained oxidation furnaces, in particular to an oil receiving device of a chained oxidation furnace for producing battery pieces, which comprises an oil receiving plate, the bottom of the oil receiving plate is inclined and is fixedly provided with an oil collecting box, and the two sides of the top of the oil receiving plate are fixedly provided with fixing assemblies used for quickly disassembling and assembling the oil receiving plate and the oil collecting box. The fixing assembly is inserted into a pin hole in the sliding sleeve, the sliding sleeve is arranged on the guide frame in a sleeving mode, a fixing frame is fixedly arranged on the guide frame, the fixing frame is fixedly arranged in the chain type oxidation furnace, and the bottom of the guide frame is fixedly provided with a detection assembly used for reminding workers to clean oil dirt in time. According to the chain type oxidation furnace oil receiving device for producing the battery pieces, oil stains can drop on the oil receiving plate after being condensed, are gathered into clusters along the oil receiving plate and flow into the oil collecting box, so that the pollution of the battery pieces and the pollution of rollers are avoided, and the yield and the quality of electrode piece production can be improved; and a worker can be automatically reminded to carry out cleaning work in time.

Description

Technical Field

[0001] The utility model relates to the technical field of chain oxidation furnaces, in particular to an oil receiving device of a chain oxidation furnace used for producing battery sheets. Background Art

[0002] When using a chain oxidation furnace to produce solar cells, the temperature in the chain oxidation furnace chamber reaches 500-800℃, which has a large temperature difference with the silicon wafer feed port. The POCl3 in the phosphorus-silicon glass layer will react chemically with the water vapor in the air, thereby forming metaphosphoric acid accumulation inside the chain oxidation furnace. When these metaphosphoric acids accumulate to a certain extent, they will drip onto the conveying rollers, and the rollers will rotate and adhere to the surface of the silicon wafers, entering the subsequent PSG process, which will directly lead to abnormal alkaline washing, the appearance of a batch of small white spots, resulting in a large number of reworked pieces, and entering the finished product end will cause abnormal appearance of the solar cells. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an oil receiving device for a chain oxidation furnace for producing battery cells, which solves the technical problem that oil stains adhere to the battery cells during the chain oxidation process, resulting in cells with poor appearance.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: an oil receiving device for a chain oxidation furnace for producing battery cells, comprising an oil receiving plate, the bottom of the oil receiving plate is inclined and fixedly provided with an oil collecting box, both sides of the top of the oil receiving plate are fixedly provided with fixing components for quickly disassembling and assembling the oil receiving plate and the oil collecting box, the fixing components are inserted into the pin holes on the sliding sleeve, the sliding sleeve is sleeved on the guide frame, the guide frame is fixedly provided with a fixing frame, the fixing frame is fixedly provided in the chain oxidation furnace, and the bottom of the guide frame is fixedly provided with a detection component for reminding the staff to clean up the oil stains in time;

[0005] The detection component includes a column fixedly connected to the bottom of the guide frame, on which are sleeved two connected springs and a support plate, on which is a U-shaped groove fitted with the bottom of the oil collecting box, and on the outer wall of the column is a push switch located below the support plate.

[0006] Preferably, the oil receiving plate is located directly above the roller in the chain oxidation furnace.

[0007] Preferably, the bottom of the oil receiving plate is inclined, and the inclination angle is 10° to 20°.

[0008] Preferably, both ends of the oil collecting box are closed.

[0009] Preferably, the fixing assembly is fixedly connected to a fixing block on the top back side of the oil receiving plate, a guide column is fixedly connected to the fixing block, a spring and a slider connected to each other are sleeved on the outer wall of the guide column, the slider is slidably arranged in a sliding hole opened on the fixing frame and fixedly connected to the back side of the latch, and one end of the latch is inserted into the pin hole on the sliding sleeve.

[0010] Preferably, the fixing frame is provided with two waist holes for installation.

[0011] By means of the above technical solution, the utility model provides an oil receiving device for a chain oxidation furnace for producing battery cells, which has at least the following beneficial effects:

[0012] 1. The oil receiving device of the chain oxidation furnace used for producing battery cells is provided with an oil receiving plate and an oil collecting box above the roller. During the process of preparing the SiO2 oxide layer on the front side, the phosphosilicate glass will undergo a chemical reaction under a high temperature environment to produce metaphosphoric acid oil pollution. After the equipment has been running for a long time, the oil pollution condenses and drips on the oil receiving plate, gathers into a ball along the oil receiving plate and flows into the oil collecting box, thereby avoiding battery cell pollution and roller pollution, and improving the yield and quality of electrode production.

[0013] 2. The oil receiving device of the chain oxidation furnace used for producing battery cells is provided with a detection component. When there is a certain weight of oil in the oil collecting box, the weight of the oil collecting box increases and drives the support plate to move down. After the support plate contacts the press switch, a reminder signal can be issued so that the staff can carry out cleaning work in time.

[0014] 3. The oil receiving device of the chain oxidation furnace used for producing battery cells is provided with a fixed component, and the oil receiving plate and the oil collecting box can be removed together by pulling the latch, which is simple to disassemble and assemble, and convenient to remove and clean later. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 This is a structural schematic diagram of the connection between the oil receiving plate and the oil collecting box of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the detection component of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the fixing components on the oil receiving plate of the utility model.

[0020] Reference numerals:

[0021] 1. Oil receiving plate; 2. Oil collecting box; 3. Fixing assembly; 31. Fixing block; 32. Guide column; 33. Spring 1; 34. Sliding block; 35. Latch; 4. Sliding sleeve; 5. Guide frame; 6. Fixing frame; 7. Detection assembly; 71. Column; 72. Support plate; 73. Spring 2; 74. Push switch. DETAILED DESCRIPTION

[0022] 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.

[0023] Chain oxidation is a technology used to prepare oxide layers in the production of solar cells. In the preparation process of "PERC+SE" monocrystalline silicon solar cells, compared with the traditional acid polishing process, it is necessary to prepare an oxide layer SiO2 film as a mask before the alkaline polishing process (i.e., the oxidation step) to protect the front of the silicon wafer. At present, there are two main ways to prepare SiO2 films in the industry, one is to use a tubular diffusion furnace, and the other is to use a chain oxidation furnace. From the perspective of practical application, compared with the tubular diffusion furnace, the chain oxidation furnace has better production line compatibility and higher production capacity.

[0024] Embodiment 1:

[0025] Based on the technical defects of the existing technology that oil stains adhere to the battery cells during the cell chain oxidation process, resulting in poor appearance, please refer to Figure 1-Figure 4 The utility model provides an oil receiving device for a chain oxidation furnace for producing battery cells. The oil condenses and drips on the oil receiving plate 1, gathers into a ball along the oil receiving plate 1 and flows into the oil collecting box 2, thereby avoiding battery cell pollution and roller pollution, and improving the yield rate of electrode sheet production. The utility model comprises an oil receiving plate 1, the bottom of the oil receiving plate 1 is inclined and the oil collecting box 2 is fixedly provided, and both sides of the top of the oil receiving plate 1 are fixedly provided with fixing components 3 for quickly disassembling and assembling the oil receiving plate 1 and the oil collecting box 2, and the fixing components 3 are inserted into the pin holes on the sliding sleeve 4. The sliding sleeve 4 is sleeved on the guide frame 5, and a fixing frame 6 is fixed on the guide frame 5. The fixing frame 6 is fixed in the chain oxidation furnace. A detection component 7 for reminding the staff to clean up the oil in time is fixed at the bottom of the guide frame 5; during use, the oil condenses and drips on the oil receiving plate 1, gathers into a ball along the oil receiving plate 1 and flows into the oil collecting box 2. As the oil in the oil collecting box 2 increases, the weight of the oil collecting box 2 increases and triggers the detection component 7. The detection component 7 sends a reminder signal and notifies the staff to clean up in time.

[0026] To remind the staff to clean the oil collection box 2 in time, please refer to Figure 3 The detection assembly 7 includes a column 71 fixedly connected to the bottom of the guide frame 5, on which a spring 73 and a support plate 72 connected to each other are sleeved, and the support plate 72 is provided with a U-shaped groove that fits the bottom of the oil collecting box 2. A push switch 74 is also installed on the outer wall of the column 71 and is located below the support plate 72. As the oil in the oil collecting box 2 increases, the weight of the oil collecting box 2 increases and drives the support plate 72 to move downward. After the support plate 72 contacts the push switch 74, a reminder signal can be issued.

[0027] In order to prevent the oil from dripping onto the roller, the oil receiving plate 1 is placed directly above the roller in the chain oxidation furnace; thus, the gathered oil will drip onto the oil receiving plate 1 without contacting the roller.

[0028] To ensure that the oil can flow smoothly into the oil collecting box 2, the bottom of the oil receiving plate 1 is inclined at an angle of 10° to 20°; under the action of gravity, the inclined design allows the oil to flow and gather more easily.

[0029] In order to prevent the oil from flowing out from both ends of the oil collecting box 2, both ends of the oil collecting box 2 are closed; in this way, the oil can be temporarily stored in the oil collecting box 2, thereby facilitating subsequent cleaning.

[0030] In order to install the fixing frame 6, two waist holes for installation are opened on the fixing frame 6; the fixing frame 6 can be conveniently installed and fixed by bolts and other components.

[0031] Embodiment 2:

[0032] When the oil in the oil collecting box 2 needs to be cleaned, the oil collecting box 2 and the oil collecting plate 1 need to be disassembled and removed together. Please refer to Figure 4 On the basis of the first embodiment, the fixing assembly 3 is fixedly connected to the fixing block 31 on the top back of the oil receiving plate 1, and a guide column 32 is fixedly connected to the fixing block 31. The outer wall of the guide column 32 is sleeved with a connected spring 33 and a slider 34. The slider 34 is slidably set in the sliding hole opened on the fixing frame 6 and fixedly connected to the back of the latch 35. One end of the latch 35 is inserted into the pin hole on the sliding sleeve 4. When disassembling, pull the latch 35 and make one end of it detach from the pin hole on the sliding sleeve 4, and then the oil receiving plate 1 and the oil collecting box 2 can be removed and cleaned together. After cleaning, the latch 35 can be reinserted into the sliding sleeve 4. The plug-in method is adopted to disassemble and assemble the oil receiving plate 1 and the oil collecting box 2, which is convenient and simple to operate.

[0033] It can be known from the above embodiments that during use, oil condenses and drips onto the oil receiving plate 1, gathers into a ball along the oil receiving plate 1 and flows into the oil collecting box 2. As the amount of oil in the oil collecting box 2 increases, the weight of the oil collecting box 2 increases and triggers the detection component 7. The support plate 72 in the detection component 7 moves downward. When the support plate 72 contacts the press switch 74, a reminder signal can be issued to notify the staff to carry out cleaning work in time. When cleaning, first pull the pin 35 and disengage one end of it from the pin hole on the sliding sleeve 4, and then the oil receiving plate 1 and the oil collecting box 2 can be removed together and cleaned. After cleaning, the pin 35 can be reinserted into the sliding sleeve 4.

[0034] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes 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 apparatus.

[0035] 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. An oil receiving device for a chain oxidation furnace for producing battery cells, comprising an oil receiving plate (1), characterized in that: The bottom of the oil receiving plate (1) is inclined and is fixedly provided with an oil collecting box (2). Both sides of the top of the oil receiving plate (1) are fixedly provided with fixing components (3) for quickly disassembling and assembling the oil receiving plate (1) and the oil collecting box (2). The fixing components (3) are inserted into the pin holes on the sliding sleeve (4). The sliding sleeve (4) is sleeved on the guide frame (5). A fixing frame (6) is fixedly provided on the guide frame (5). The fixing frame (6) is fixedly provided in the chain oxidation furnace. A detection component (7) for reminding the staff to clean up the oil stains in time is fixedly provided at the bottom of the guide frame (5); The detection assembly (7) comprises a column (71) fixedly connected to the bottom of the guide frame (5); a second spring (73) and a support plate (72) connected to each other are sleeved on the column (71); a U-shaped groove is provided on the support plate (72) and fits with the bottom of the oil collecting box (2); and a push switch (74) is also installed on the outer wall of the column (71) and is located below the support plate (72).

2. The oil receiving device for a chain oxidation furnace for producing battery cells according to claim 1, characterized in that: The oil receiving plate (1) is located directly above the roller in the chain oxidation furnace.

3. The oil receiving device for a chain oxidation furnace for producing battery cells according to claim 1, characterized in that: The bottom of the oil receiving plate (1) is inclined, and the inclination angle is 10° to 20°.

4. The oil receiving device for a chain oxidation furnace for producing battery cells according to claim 1, characterized in that: Both ends of the oil collecting box (2) are closed.

5. The oil receiving device for a chain oxidation furnace for producing battery cells according to claim 1, characterized in that: The fixing assembly (3) is fixedly connected to a fixing block (31) on the top back side of the oil receiving plate (1); a guide column (32) is fixedly connected to the fixing block (31); a spring (33) and a slider (34) connected to each other are sleeved on the outer wall of the guide column (32); the slider (34) is slidably arranged in a sliding hole provided on the fixing frame (6) and fixedly connected to the back side of a latch (35); one end of the latch (35) is inserted into a pin hole on the sliding sleeve (4).

6. The oil receiving device for a chain oxidation furnace for producing battery cells according to claim 1, characterized in that: The fixing frame (6) is provided with two waist holes for installation.

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