Preheating cavity for battery processing

Abstract

The utility model discloses a preheating cavity for battery processing, which comprises a cavity body, the top of the cavity body is communicated with a microwave inlet cover, both sides of the top of the cavity body are rotatably provided with two-way screws, the outer sides of the two-way screws are provided with driving components, both sides of the two-way screws are in threaded connection with moving blocks, and the moving blocks are in threaded connection with the microwave inlet cover. A transverse plate is fixedly installed at the bottoms of the two moving blocks arranged on the same side, a plurality of vertical rods are fixedly installed at the bottom of the transverse plate at equal intervals, correction cylinders are rotatably installed on the vertical rods, a plurality of conveying rollers are rotatably installed at the bottom of the cavity body at equal intervals, a carrier is arranged above the conveying rollers, and a fixing assembly is arranged on the carrier. The position of the silicon wafer can be corrected, it is ensured that the silicon wafer can be kept at the optimal position in the preheating process, the fixing assembly adopts the design of a spring and a clamping plate, the silicon wafer can be stably fixed and prevented from moving or falling off in the preheating process, meanwhile, slow rotation of the silicon wafer is achieved, and temperature uniformity in the preheating process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of solar cell manufacturing, and more specifically, the utility model relates to a preheating cavity for battery processing. Background Art

[0002] With the continuous growth of the global demand for renewable energy, solar energy, as a clean and renewable energy form, has become increasingly prominent. Heterojunction solar cells (HJCs) have become one of the hotspots in solar cell research in recent years due to their high photoelectric conversion efficiency and good stability. However, in the manufacturing process of heterojunction solar cells, the preheating link is one of the key steps to ensure battery performance. Preheating not only helps to remove contaminants on the surface of silicon wafers, but also promotes the uniform deposition of thin films in subsequent processes, thereby improving the overall efficiency of the battery.

[0003] Traditional preheating methods often have problems such as difficult precise control of the position of silicon wafers, easy movement or detachment of silicon wafers during the preheating process, and uneven preheating temperature distribution. These problems directly affect the preheating effect of silicon wafers, and may even lead to a decline in battery performance. Therefore, developing a preheating cavity that can precisely control the position of silicon wafers, firmly fix silicon wafers, and achieve uniform preheating is of great significance for improving the manufacturing quality and efficiency of heterojunction solar cells. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a preheating cavity for battery processing to solve the problems raised in the above background art.

[0005] To achieve the above object, the utility model provides the following technical solution: A preheating cavity for battery processing, including a chamber body, a microwave inlet cover is connected to the top of the chamber body, two-way screws are rotatably installed on both sides of the top of the chamber body, a driving component is arranged outside the two two-way screws, moving blocks are threadedly connected to both sides of the two-way screws, a cross plate is fixedly installed at the bottom of the two moving blocks arranged on the same side, multiple vertical rods are fixedly installed at equal intervals at the bottom of the cross plate, a calibration cylinder is rotatably installed on the vertical rods, multiple transmission rollers are rotatably installed at equal intervals at the bottom of the chamber body, a carrier is arranged above the transmission rollers, and a fixing component is arranged on the carrier.

[0006] Further, the microwave inlet cover is of a conical structure.

[0007] Further, the driving component includes a double-shaft motor fixedly installed on the outer wall surface of the chamber body, output shafts at both ends of the double-shaft motor are connected with transmission shafts, and a bevel gear set is arranged between the two transmission shafts and the two two-way screws.

[0008] Furthermore, connecting frames are fixedly installed on both sides of the outer wall surface of the chamber body, and the two transmission shafts are respectively rotatably connected to the two connecting frames.

[0009] Furthermore, the fixing component includes a placement frame. Connecting shafts are fixedly installed on both sides of the placement frame, and the two connecting shafts are rotatably connected to the placement frame. Springs are fixedly installed on the inner walls of both sides of the placement frame, and clamping plates are fixedly installed at the inner ends of the springs.

[0010] Furthermore, a stepping motor is fixedly installed on one side of the carrier. A small gear is fixedly installed on the output shaft of the stepping motor, and a large gear meshed with the small gear is fixedly installed on one of the connecting shafts.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. The present utility model utilizes the adjustment mechanism composed of a bidirectional screw rod and a moving block, in cooperation with a calibration cylinder, to accurately calibrate the position of the silicon wafer, ensuring that the silicon wafer can maintain the optimal position during the preheating process, and avoiding problems such as uneven preheating or reduced efficiency caused by position deviation;

[0013] 2. In the present utility model, the fixing component on the carrier adopts the design of springs and clamping plates, which can firmly fix the silicon wafer to prevent it from moving or falling off during the preheating process. At the same time, through the combination of the small gear and the large gear driven by the stepping motor, the silicon wafer can be slowly rotated, ensuring the temperature uniformity during the preheating process, both ensuring the stability of the silicon wafer and meeting the requirement of its flexible rotation. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is the overall structure schematic diagram provided by the present utility model;

[0016] Figure 2 It is the side view of the overall structure provided by the present utility model;

[0017] Figure 3 It is the internal structure schematic diagram of the chamber body provided by the present utility model;

[0018] Figure 4 It is the structure schematic diagram of the fixing component provided by the present utility model.

[0019] Description of the Reference Numerals:

[0020] 1. Chamber body; 2. Microwave inlet cover; 3. Bi-directional screw; 4. Drive assembly; 401. Dual-axis motor; 402. Transmission shaft; 403. Bevel gear set; 5. Connecting frame; 6. Moving block; 7. Horizontal plate; 8. Vertical rod; 9. Calibration cylinder; 10. Transmission roller; 11. Carrier; 12. Fixing assembly; 1201. Placement frame; 1202. Coupling shaft; 1203. Spring; 1204. Clamp; 1205. Stepper motor; 1206. Small gear; 1207. Large gear. Detailed implementation manners

[0021] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] In order to enable those skilled in the art of this technical field to better understand the solution of this application, the following further details the application in combination with the drawings and specific implementation manners.

[0023] Embodiment:

[0024] Referring to the attached Figure 1 , a preheating cavity for battery processing in this embodiment includes a chamber body 1. A microwave inlet cover 2 is connected to the top of the chamber body 1. The microwave inlet cover 2 is used to introduce microwaves. The microwave inlet cover 2 is of a conical structure, which is convenient for the focusing and uniform distribution of microwaves, helps the diffusion of microwaves and the uniform irradiation of silicon wafers, and improves the preheating efficiency.

[0025] Referring to the attached Figure 1 and Figure 2 , both sides of the top of the chamber body 1 are rotatably installed with bi-directional screws 3. A drive assembly 4 is arranged outside the two bi-directional screws 3. The drive assembly 4 includes a dual-axis motor 401 fixedly installed on the outer wall surface of the chamber body 1. Output shafts at both ends of the dual-axis motor 401 are respectively connected with transmission shafts 402. A bevel gear set 403 is arranged between the two transmission shafts 402 and the two bi-directional screws 3. When in use, the dual-axis motor 401 is turned on. Under the connection action of the bevel gear sets 403 on both sides, the synchronous rotation of the two transmission shafts 402 is realized. Connecting frames 5 are fixedly installed on both sides of the outer wall surface of the chamber body 1. The two transmission shafts 402 are respectively rotatably connected with the two connecting frames 5. The connecting frames 5 provide support for the transmission shafts 402, ensuring the structural stability of the two transmission shafts 402 during the rotation process.

[0026] Referring to the attached Figure 1 and Figure 3, moving blocks 6 are screwed on both sides of the bidirectional screw 3. At the bottom of two moving blocks 6 arranged on the same side, a cross plate 7 is fixedly installed. At the bottom of the cross plate 7, a plurality of vertical rods 8 are fixedly installed at equal intervals. A calibration cylinder 9 is rotatably installed on the vertical rod 8. During the synchronous rotation of the two bidirectional screws 3, the calibration cylinders 9 on both sides move towards each other, realizing the calibration of the position of the silicon wafer.

[0027] Refer to the appendix Figure 1 and Figure 4 , a plurality of transmission rollers 10 are rotatably installed at equal intervals at the bottom of the chamber body 1. A carrier 11 is arranged above the transmission rollers 10. The transmission rollers 10 are used to transmit the carrier 11. A fixing component 12 is arranged on the carrier 11. The fixing component 12 includes a placement frame 1201. On both sides of the placement frame 1201, connecting shafts 1202 are fixedly installed, and both connecting shafts 1202 are rotatably connected to the placement frame 1201. On both inner walls of the placement frame 1201, springs 1203 are fixedly installed. At the inner ends of the springs 1203, clamping plates 1204 are fixedly installed. When in use, the silicon wafer is placed between the clamping plates 1204 on both sides, and the elasticity of the springs 1203 on both sides is used to fix the silicon wafer, which can be applicable to silicon wafers of different sizes and shapes.

[0028] Refer to the appendix Figure 1 and Figure 4 , a stepping motor 1205 is fixedly installed on one side of the carrier 11. A small gear 1206 is fixedly installed on the output shaft of the stepping motor 1205. A large gear 1207 meshing with the small gear 1206 is fixedly installed on one of the connecting shafts 1202. When in use, the stepping motor 1205 is turned on. The stepping motor 1205 drives the small gear 1206 to rotate, thereby realizing the rotation of the large gear 1207, and further realizing the rotation of the connecting shaft 1202 and the placement frame 1201, realizing the rotation of the silicon wafer, ensuring the uniformity of preheating. At the same time, the design of using the small gear 1206 to drive the large gear 1207 to rotate reduces the rotation speed of the silicon wafer.

[0029] This preheating chamber introduces microwaves through the microwave inlet cover 2 to preheat the silicon wafers in the chamber body 1; the adjusting mechanism composed of the bidirectional screw 3 and the moving block 6, in cooperation with the calibration cylinder 9, can correct the position of the silicon wafer; the fixing component 12 on the carrier 11 is used to fix the silicon wafer, and the stepping motor 1205 drives the silicon wafer to rotate slowly to ensure uniform preheating.

[0030] Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A preheating cavity for battery processing, characterized in that, It includes a chamber body (1), a microwave inlet cover (2) is connected to the top of the chamber body (1), two-way screws (3) are rotatably installed on both sides of the top of the chamber body (1), a driving component (4) is arranged on the outer sides of the two two-way screws (3), moving blocks (6) are threadedly connected to both sides of the two-way screws (3), a cross plate (7) is fixedly installed at the bottoms of the two moving blocks (6) arranged on the same side, multiple vertical rods (8) are fixedly installed at equal intervals at the bottom of the cross plate (7), a calibration cylinder (9) is rotatably installed on the vertical rods (8), multiple transmission rollers (10) are rotatably installed at equal intervals at the bottom of the chamber body (1), a carrier (11) is arranged above the transmission rollers (10), and a fixing component (12) is arranged on the carrier (11).

2. The preheating cavity for battery processing according to claim 1, wherein: The microwave inlet cover (2) is of a conical structure.

3. A preheating cavity for battery processing according to claim 1, characterized in that: The driving component (4) includes a double-shaft motor (401) fixedly installed on the outer wall surface of the chamber body (1), transmission shafts (402) are connected to the output shafts at both ends of the double-shaft motor (401), and a bevel gear set (403) is arranged between the two transmission shafts (402) and the two two-way screws (3).

4. A preheating cavity for battery processing according to claim 3, characterized in that: Connection frames (5) are fixedly installed on both sides of the outer wall surface of the chamber body (1), and the two transmission shafts (402) are respectively rotatably connected to the two connection frames (5).

5. The preheating cavity for battery processing according to claim 1, characterized in that: The fixing component (12) includes a placement frame (1201), connecting shafts (1202) are fixedly installed on both sides of the placement frame (1201), and both connecting shafts (1202) are rotatably connected to the placement frame (1201), springs (1203) are fixedly installed on the inner walls on both sides of the placement frame (1201), and clamping plates (1204) are fixedly installed at the inner ends of the springs (1203).

6. The preheating cavity for battery processing according to claim 5, characterized in that: A stepping motor (1205) is fixedly installed on one side of the carrier (11), a small gear (1206) is fixedly installed on the output shaft of the stepping motor (1205), and a large gear (1207) meshing with the small gear (1206) is fixedly installed on one of the connecting shafts (1202).

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