Novel heterojunction battery texturing liquid receiving tray structure

Abstract

The utility model relates to a novel heterojunction battery texturing liquid receiving tray structure, which belongs to the technical field of battery production and comprises a liquid receiving frame, a texturing leakage-proof mechanism is arranged in the liquid receiving frame, an alarm component is arranged in the liquid receiving frame, the texturing leakage-proof mechanism comprises a supporting block fixedly connected to the inner side of the liquid receiving frame, and the supporting block is fixedly connected to the inner side of the liquid receiving frame. The top of the supporting block is provided with a texturing frame, and the inner side of the liquid receiving frame is provided with a mounting assembly used for fixing the texturing frame. According to the novel heterojunction cell texturing liquid receiving tray structure, the arranged liquid receiving frame can receive liquid discharged or leaked from the texturing frame, so that potential safety hazards caused by liquid loss are prevented, liquid circulation is achieved under the condition that sufficient reaction liquid and cleaning liquid are guaranteed, resource waste is reduced, in addition, leakage detection can be conducted on the texturing frame, and the service life of the texturing frame is prolonged. And when leakage occurs, the alarm can be operated in time, so that a worker can repair and maintain the texturing frame in time, and the practicability and the safety of the device are effectively enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a novel velvet liquid receiving plate structure for heterojunction batteries. Background Art

[0002] The new heterojunction cell is composed of amorphous silicon and crystalline silicon, and has multiple advantages such as simple cell structure, fewer process steps, low attenuation, high efficiency, and high bifaciality. It combines the advantages of high carrier mobility of crystalline silicon with the advantages of low-temperature chemical vapor deposition amorphous silicon process, and has very good passivation performance. The current main development direction of solar cells is to reduce costs and increase efficiency. The speed of heterojunction cell efficiency improvement and equipment cost reduction are accelerating. It is expected to become the next generation of mainstream batteries.

[0003] In the patent document with the announcement number CN206236657U, a silicon wafer texturing and drainage device is proposed, which includes a reaction device, a liquid supply device, a liquid receiving device and a liquid injection device; a liquid supply pipe and a liquid return pipe are arranged between the reaction device and the liquid supply device...; This patent can avoid the dry operation of the pump caused by the drainage speed being faster than the injection speed by setting a reasonable drainage pipeline, and also avoid the texturing reaction tank not getting enough reaction liquid, resulting in unqualified silicon wafer texturing.

[0004] However, although the above patent can guarantee the liquid level requirement of silicon wafer texturing reaction, it is not convenient to return the liquid after entering the liquid receiving device to the circulation pipeline again, and the practical effect is not good; and the above patent has set up multiple liquid receiving devices, but no liquid receiving leakage prevention mechanism. If the liquid receiving device leaks, it is easy to cause the reaction liquid to be lost, causing safety hazards and low safety performance; in view of this, the present application proposes a new type of heterojunction battery texturing liquid receiving tray structure. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a novel liquid receiving tray structure for texturing of heterojunction batteries, which has the advantages of being able to utilize a liquid receiving frame to receive liquid discharged or leaked from a texturing frame, thereby preventing safety hazards caused by liquid loss, and realizing liquid circulation, reducing waste of resources, and at the same time, can also perform leakage detection and promptly alarm when leakage occurs, so as to facilitate timely inspection and maintenance, thereby improving the practicality and safety of the device, etc., and solves the problems that the existing texturing reaction device is not convenient for realizing liquid circulation, has poor practical effect, and has no liquid receiving and leak-proof mechanism. If leakage occurs, it is easy to cause the loss of reaction liquid, causing safety hazards, and has low safety performance.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel heterojunction battery texturing liquid receiving plate structure, comprising a liquid receiving frame, a texturing anti-leakage mechanism is arranged inside the liquid receiving frame, and an alarm component is arranged inside the liquid receiving frame;

[0007] The texturing and leak-proof mechanism comprises a support block fixedly connected to the inner side of the liquid receiving frame, a texturing frame is installed on the top of the support block, a mounting assembly for fixing the texturing frame is arranged on the inner side of the liquid receiving frame, a reaction chamber and a cleaning chamber are arranged inside the texturing frame, two liquid outlet pipes are fixedly connected to the bottom of the texturing frame, and an electrically controlled valve is arranged inside the liquid outlet pipe;

[0008] The top of the texturing frame is fixedly connected with a liquid inlet structure, the bottom of the liquid receiving frame is provided with drainage holes located on the left and right sides of the supporting block, the bottom of the liquid receiving frame is installed with a liquid receiving box corresponding to the position of the drainage holes, and the bottom of the liquid receiving box is fixedly connected with a drainage pipe.

[0009] Furthermore, the supporting block is trapezoidal, and the inner walls of the reaction chamber and the cleaning chamber in the texturing frame are fixedly connected with liquid level sensors.

[0010] Furthermore, a plurality of positioning posts are fixedly connected to the bottom of the texture making frame, and a positioning groove corresponding to the position of the positioning post is formed on the top of the supporting block.

[0011] Furthermore, the installation assembly includes an upper connecting block fixedly connected to the outer side of the velveting frame, a lower connecting block corresponding to the position of the upper connecting block is fixedly connected to the inner side of the liquid receiving frame, the upper connecting block and the lower connecting block are internally movably connected with connecting bolts, and the outer sides of the connecting bolts are threadedly connected with connecting nuts.

[0012] Furthermore, the liquid inlet structure comprises a fixed block fixedly connected to the top of the texturing frame, and the interior of the fixed block is fixedly connected with liquid inlet pipes extending to the reaction chamber and the cleaning chamber respectively.

[0013] Furthermore, a coarse filter plate corresponding to the position of the liquid discharge hole is installed on the inner bottom wall of the liquid receiving frame, and a fine filter is installed inside the liquid receiving box.

[0014] Furthermore, the inner bottom wall of the liquid receiving box is provided with a tapered surface facing the liquid discharge pipe, and the bottom of the liquid receiving frame is fixedly connected with support rods located at the front and rear sides of the liquid receiving box.

[0015] Furthermore, the alarm component includes a flow sensor fixedly connected to the inside of the liquid receiving box and corresponding to the position of the drainage hole, and the left and right sides of the liquid receiving frame are fixedly connected with alarms.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. The new type of heterojunction battery texturing liquid receiving plate structure can use the liquid inlet pipe to connect the external liquid supply equipment to supply liquid to the reaction chamber and the cleaning chamber, so as to ensure that the reaction liquid is sufficient; the set liquid level sensor can monitor the liquid level height in the reaction chamber and the cleaning chamber, so as to open the electric control valve and use the liquid outlet pipe to discharge the liquid when the liquid level is too high, thereby preventing the reaction liquid from overflowing from a high place;

[0018] 2. The liquid receiving frame is located below the texturing frame, and can cooperate with the supporting block to receive the liquid discharged or leaked from the texturing frame, so as to prevent the loss of liquid from causing safety hazards; the liquid falling into the liquid receiving frame can flow into the liquid receiving box through the drainage hole, and a pipeline connected to an external liquid supply device can be set on the drainage pipe at the bottom of the liquid receiving box to realize the secondary utilization of the liquid and reduce resource waste. The coarse filter plate can intercept solid impurities in the liquid to prevent impurities from entering the liquid circulation;

[0019] 3. The flow sensor installed in the liquid receiving box can be enabled when the electric control valve is closed, so as to judge whether the cashmere frame is leaking through the data sensed by the flow sensor. When leakage occurs, the alarm can be activated in time, so that the staff can inspect and maintain the cashmere frame in time. The cashmere frame is easy to disassemble and assemble, which can make the maintenance operation easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0021] Figure 2 This is a top view of the structure of the velvet making frame of the utility model;

[0022] Figure 3 This is a structural side view of the liquid receiving frame of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the support block of the utility model.

[0024] In the figure: 1. liquid receiving frame; 101. drain hole; 2. support block; 201. positioning groove; 3. velvet frame; 301. reaction chamber; 302. cleaning chamber; 4. positioning column; 5. upper connecting block; 6. lower connecting block; 7. connecting bolt; 8. connecting nut; 9. fixing block; 10. liquid inlet pipe; 11. liquid level sensor; 12. liquid outlet pipe; 1201. electric control valve; 13. support rod; 14. liquid receiving box; 15. fine filter element; 16. drain pipe; 17. coarse filter plate; 18. flow sensor; 19. alarm. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-4 In this embodiment, a novel heterojunction battery texturing liquid receiving plate structure includes a liquid receiving frame 1, a texturing anti-leakage mechanism is arranged inside the liquid receiving frame 1, and an alarm component is arranged inside the liquid receiving frame 1.

[0027] Embodiment 1: The cashmere leak-proof mechanism includes a supporting block 2 fixedly connected to the inner side of a liquid receiving frame 1, a cashmere frame 3 is installed on the top of the supporting block 2, a plurality of positioning columns 4 are fixedly connected to the bottom of the cashmere frame 3, a positioning groove 201 corresponding to the position of the positioning column 4 is provided on the top of the supporting block 2, so that the positioning column 4 can be inserted into the supporting block 2 by using the positioning groove 201, thereby realizing precise positioning of the cashmere frame 3, and an installation component for fixing the cashmere frame 3 is provided on the inner side of the liquid receiving frame 1.

[0028] Among them, the installation component includes an upper connecting block 5 fixedly connected to the outside of the texturing frame 3, a lower connecting block 6 corresponding to the position of the upper connecting block 5 is fixedly connected to the inner side of the liquid receiving frame 1, the upper connecting block 5 and the lower connecting block 6 are internally movably connected with connecting bolts 7, and the outer side of the connecting bolts 7 is threadedly connected with connecting nuts 8, so that the upper connecting block 5 and the lower connecting block 6 can fit tightly together by using the cooperation of the connecting bolts 7 and the connecting nuts 8, thereby limiting the movement of the texturing frame 3.

[0029] In this embodiment, a reaction chamber 301 and a cleaning chamber 302 are provided inside the texturing frame 3. The inner walls of the reaction chamber 301 and the cleaning chamber 302 in the texturing frame 3 are fixedly connected with a liquid level sensor 11, so that the liquid level height in the reaction chamber 301 and the cleaning chamber 302 can be monitored conveniently by using the liquid level sensor 11. Two liquid outlet pipes 12 are fixedly connected to the bottom of the texturing frame 3. An electric-controlled valve 1201 is provided inside the liquid outlet pipe 12, so that the electric-controlled valve 1201 can be opened when the liquid level is too high to discharge the liquid by using the liquid outlet pipe 12.

[0030] Among them, the top of the texturing frame 3 is fixedly connected with a liquid inlet structure, and the liquid inlet structure includes a fixed block 9 fixedly connected to the top of the texturing frame 3, and the interior of the fixed block 9 is fixedly connected with a liquid inlet pipe 10 extending to the reaction chamber 301 and the cleaning chamber 302 respectively. It is convenient to use the liquid inlet pipe 10 to connect an external liquid supply device to supply liquid to the reaction chamber 301 and the cleaning chamber 302, so as to ensure sufficient reaction liquid and cleaning liquid.

[0031] In this embodiment, the bottom of the liquid receiving frame 1 is provided with drainage holes 101 located on the left and right sides of the supporting block 2. The supporting block 2 is trapezoidal, so that the inclined surface on the supporting block 2 can be used to make the liquid flowing out of the velveting frame 3 flow to the drainage holes 101. A liquid receiving box 14 corresponding to the position of the drainage hole 101 is installed at the bottom of the liquid receiving frame 1. The bottom of the liquid receiving frame 1 is fixedly connected to support rods 13 located on the front and rear sides of the liquid receiving box 14, so that the support rods 13 can be used to support the liquid receiving frame 1. The bottom of the liquid receiving box 14 is fixedly connected to a drainage pipe 16.

[0032] Among them, the inner bottom wall of the liquid receiving frame 1 is installed with a coarse filter plate 17 corresponding to the position of the drainage hole 101, and the interior of the liquid receiving box 14 is installed with a fine filter 15, so that the coarse filter plate 17 can be used to intercept solid impurities in the liquid, and the fine filter 15 can be used to improve the filtering effect, so as to ensure the purity of the liquid discharged by the drainage pipe 16. The inner bottom wall of the liquid receiving box 14 is provided with a conical surface facing the drainage pipe 16, so that the conical surface can be used to facilitate the discharge of the liquid in the liquid receiving box 14.

[0033] Embodiment 2: The alarm component includes a flow sensor 18 fixedly connected to the inside of the liquid receiving box 14 and corresponding to the position of the drain hole 101, and an alarm 19 is fixedly connected to the left and right sides of the liquid receiving frame 1; the flow sensor 18 provided in the liquid receiving box 14 can be activated when the electric control valve 1201 is closed, so as to judge whether the texturing frame 3 is leaking through the sensing data of the flow sensor 18, and when leakage occurs, the alarm 19 can be operated in time, so that the staff can inspect and maintain the texturing frame 3 in time.

[0034] The beneficial effects of the above embodiments are:

[0035] The novel heterojunction battery texturing liquid receiving plate structure can use the liquid inlet pipe 10 to connect the external liquid supply equipment to supply liquid to the reaction chamber 301 and the cleaning chamber 302, so as to ensure that the reaction liquid is sufficient; the set liquid level sensor 11 can monitor the liquid level height in the reaction chamber 301 and the cleaning chamber 302, so as to open the electric control valve 1201 and use the liquid outlet pipe 12 to discharge the liquid when the liquid level is too high, thereby preventing the reaction liquid from overflowing from a high place;

[0036] The liquid receiving frame 1 is located below the texturing frame 3, and can cooperate with the supporting block 2 to receive the liquid discharged or leaked from the texturing frame 3, so as to prevent the loss of liquid from causing safety hazards; the liquid falling into the liquid receiving frame 1 can flow into the liquid receiving box 14 through the drainage hole 101, and a pipeline connected to an external liquid supply device can be set on the drainage pipe 16 at the bottom of the liquid receiving box 14, so as to realize the secondary utilization of the liquid and reduce the waste of resources, and the coarse filter plate 17 can intercept solid impurities in the liquid, so as to prevent impurities from entering the liquid circulation;

[0037] The flow sensor 18 provided in the liquid receiving box 14 can be enabled when the electric control valve 1201 is closed, so as to judge whether the texturing frame 3 is leaking by sensing data through the flow sensor 18. When leakage occurs, the alarm 19 can be operated in time, so that the staff can inspect and maintain the texturing frame 3 in time. In addition, the texturing frame 3 is easy to disassemble and assemble, which can make the maintenance operation easier.

[0038] The working principle of the above embodiment is:

[0039] The novel heterojunction battery texturing liquid receiving plate structure can be used to install the texturing frame 3 in the liquid receiving frame 1, and the provided liquid inlet pipe 10 can be connected to an external liquid supply device to supply liquid to the reaction chamber 301 and the cleaning chamber 302, so as to ensure that the reaction liquid and the cleaning liquid are sufficient. When the battery silicon wafer is located in the reaction chamber 301, the reaction liquid therein can realize the texturing treatment of the silicon wafer. After the texturing is completed, the battery silicon wafer can be moved to the cleaning chamber 302 to be cleaned by the cleaning liquid.

[0040] During the process of making and cleaning, the liquid level sensor 11 is arranged to monitor the liquid level in the reaction chamber 301 and the cleaning chamber 302, so as to open the electric control valve 1201 and discharge the liquid through the liquid outlet pipe 12 when the liquid level is too high, thereby preventing the liquid from overflowing from a high place; and the liquid receiving frame 1 is arranged to receive the liquid discharged or leaked from the making frame 3, so as to prevent the liquid from being lost and causing safety hazards;

[0041] The liquid falling into the liquid receiving frame 1 can flow into the liquid receiving box 14 through the liquid discharge hole 101. A pipe connected to an external liquid supply device can be provided on the liquid discharge pipe 16 at the bottom of the liquid receiving box 14 to facilitate the secondary utilization of the liquid and reduce resource waste. In this process, the coarse filter plate 17 can intercept solid impurities in the liquid, so that the solid impurities flow into the liquid receiving frame 1, making it easy to clean the impurities, and the fine filter 15 can improve the filtering effect, so as to ensure the purity of the liquid discharged from the liquid discharge pipe 16.

[0042] The flow sensor 18 provided in the liquid receiving box 14 can be enabled when the electric control valve 1201 is closed, so as to judge whether the texturing frame 3 is leaking by sensing data through the flow sensor 18. If the texturing frame 3 leaks, the alarm 19 is operated so that the staff can inspect and maintain the texturing frame 3 in time, and the texturing frame 3 is easy to disassemble and assemble, which can make the maintenance operation easier. In addition, after using it for a period of time, the liquid receiving box 14 can be removed to clean and replace the coarse filter plate 17 and the fine filter 15 to extend the service life.

[0043] 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0044] 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 novel heterojunction battery texturing liquid receiving plate structure, comprising a liquid receiving frame (1), characterized in that: A velvet-making anti-leakage mechanism is arranged inside the liquid receiving frame (1), and an alarm component is arranged inside the liquid receiving frame (1); The texturing and leak-proof mechanism comprises a support block (2) fixedly connected to the inner side of the liquid receiving frame (1); a texturing frame (3) is installed on the top of the support block (2); a mounting assembly for fixing the texturing frame (3) is provided on the inner side of the liquid receiving frame (1); a reaction chamber (301) and a cleaning chamber (302) are provided inside the texturing frame (3); two liquid outlet pipes (12) are fixedly connected to the bottom of the texturing frame (3); an electrically controlled valve (1201) is provided inside the liquid outlet pipe (12); The top of the texturing frame (3) is fixedly connected to a liquid inlet structure, the bottom of the liquid receiving frame (1) is provided with liquid drainage holes (101) located on the left and right sides of the support block (2), the bottom of the liquid receiving frame (1) is installed with a liquid receiving box (14) corresponding to the position of the liquid drainage holes (101), and the bottom of the liquid receiving box (14) is fixedly connected to a liquid drainage pipe (16).

2. According to the novel heterojunction battery texturing liquid receiving plate structure of claim 1, it is characterized by: The support block (2) is trapezoidal in shape, and the inner walls of the reaction chamber (301) and the cleaning chamber (302) in the texturing frame (3) are both fixedly connected with liquid level sensors (11).

3. According to the novel heterojunction battery texturing liquid receiving plate structure of claim 1, it is characterized by: A plurality of positioning posts (4) are fixedly connected to the bottom of the velveting frame (3), and a positioning groove (201) corresponding to the position of the positioning post (4) is provided on the top of the support block (2).

4. According to the novel heterojunction battery texturing liquid receiving plate structure of claim 1, it is characterized by: The mounting assembly comprises an upper connecting block (5) fixedly connected to the outer side of the velveting frame (3); a lower connecting block (6) corresponding to the position of the upper connecting block (5) is fixedly connected to the inner side of the liquid receiving frame (1); the upper connecting block (5) and the lower connecting block (6) are internally movably connected with connecting bolts (7); and the outer side of the connecting bolts (7) is threadedly connected with connecting nuts (8).

5. According to the novel heterojunction battery texturing liquid receiving plate structure of claim 1, it is characterized by: The liquid inlet structure comprises a fixed block (9) fixedly connected to the top of the texturing frame (3), and the interior of the fixed block (9) is fixedly connected with a liquid inlet pipe (10) extending to the reaction chamber (301) and the cleaning chamber (302) respectively.

6. According to the novel heterojunction battery texturing liquid receiving plate structure of claim 1, it is characterized by: A coarse filter plate (17) corresponding to the position of the liquid discharge hole (101) is installed on the inner bottom wall of the liquid receiving frame (1), and a fine filter element (15) is installed inside the liquid receiving box (14).

7. According to the novel heterojunction battery texturing liquid receiving plate structure of claim 1, it is characterized by: The inner bottom wall of the liquid receiving box (14) is provided with a tapered surface facing the liquid discharge pipe (16), and the bottom of the liquid receiving frame (1) is fixedly connected to support rods (13) located at the front and rear sides of the liquid receiving box (14).

8. According to the novel heterojunction battery texturing liquid receiving plate structure of claim 1, it is characterized by: The alarm component comprises a flow sensor (18) fixedly connected to the inside of the liquid receiving box (14) and corresponding to the position of the liquid discharge hole (101), and an alarm (19) is fixedly connected to both the left and right sides of the liquid receiving frame (1).

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