Slurry coating device
By using the spray slurry method and the slurry coating device controlled by the striker device in the manufacturing of solar cell modules, the problems of battery cell damage and low production capacity caused by traditional contact printing are solved, and rapid and contactless slurry coating is achieved, and the production capacity of the equipment is improved.
Patent Information
- Application Number
- CN202421571394.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-04
AI Technical Summary
Traditional contact screen printing methods can easily lead to cracking and damage to solar cell cells, and the printing process time is long, resulting in low equipment production capacity.
A slurry coating device is adopted, and the traditional printing method is replaced by spraying slurry. Multiple nozzles are used to quantify the slurry onto the battery cell at the same time. The nozzle does not come into direct contact with the battery cell. The switch of the nozzle is controlled in combination with the striker device to achieve rapid and contactless slurry coating.
It avoids contamination and crack damage of the battery cells, and improves the slurry coating speed and equipment production capacity.
Smart Images
Figure CN222817061U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of photovoltaic product production equipment, and in particular to a slurry coating device. Background Art
[0002] The pre-soldering process of solar cell module manufacturing involves the printing of pastes such as solder paste or insulating glue. The traditional method of printing paste is screen printing, which uses the basic principle that the mesh of the graphic part of the screen is transparent to the paste, while the mesh of the non-graphic part is not transparent to the paste. When printing, pour the paste at one end of the screen, and use a scraper to apply a certain pressure to the paste part of the screen while moving toward the other end of the screen. The paste is squeezed from the mesh of the graphic part to the battery cell by the scraper during movement. When the scraper scrapes the entire printing area and lifts up, the screen is also separated from the battery cell, and the paste is scraped back to the initial position by the ink return knife. This is a printing stroke.
[0003] This printing method is contact printing. The screen is at a certain distance from the battery cell. During the printing process, the screen will contact the battery cell under the pressure of the scraper. If the pressure of the scraper is too high, it will cause hidden cracks and damage to the battery cell. The printing process mainly includes the process of scraper lifting, printing and ink return. This process takes a long time and is likely to become a cycle bottleneck, reducing the production capacity of the equipment. Utility Model Content
[0004] In order to improve the problem that contact printing easily causes damage to battery cells and low production capacity, the present application provides a slurry coating device.
[0005] The present application provides a slurry coating device that adopts the following technical solution:
[0006] A slurry coating device comprises a main body, wherein the main body is provided with a plurality of glue cavities, a rubber hose is provided at one end of the glue cavity, a glue cavity plug is provided at the other end of the glue cavity, each of the glue cavities is provided with a plurality of mounting holes along its length direction, and the mounting holes are provided with a nozzle and a striker assembly for controlling a nozzle switch.
[0007] In one embodiment, the firing pin assembly includes a base, a sleeve, a spring and a firing pin, the sleeve is sleeved on the base, the base is arranged in the mounting hole, the firing pin is slidably connected to the base and the sleeve, the spring is arranged in the sleeve and sleeved on the firing pin, and the two ends of the spring are respectively fixed to the base and the firing pin.
[0008] The slurry coating device provided in the embodiment of the present disclosure can achieve the following technical effects:
[0009] By using the slurry spraying method instead of the printing method, multiple nozzles are used to spray the slurry onto the battery cell at the same time, and the nozzles will not come into direct contact with the battery cell, thus avoiding problems such as battery cell contamination and hidden crack damage. At the same time, the direct spraying method is adopted, and the nozzle is controlled by the striker device to start and stop immediately, so that the slurry can be sprayed directly onto the battery cell quickly, which improves the slurry coating speed and equipment production capacity.
[0010] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of a slurry coating device provided in an embodiment of the present application.
[0012] Figure 2 It is a cross-sectional structural schematic diagram showing the positional relationship between the nozzle and the striker assembly provided in an embodiment of the present application.
[0013] Explanation of the accompanying reference numerals: 1. body; 2. rubber chamber; 3. rubber hose; 4. rubber chamber plug; 5. mounting hole; 6. nozzle; 7. striker assembly; 71. base; 72. sleeve; 73. spring; 74. striker. DETAILED DESCRIPTION
[0014] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0015] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.
[0016] The following is combined with Figure 1-2 This application is described in further detail.
[0017] A slurry coating device includes a body 1, the body 1 is provided with a plurality of glue chambers 2, the glue chambers 2 penetrate the body 1, one end of the glue chamber 2 is provided with a rubber hose 3, and the other end of the glue chamber 2 is provided with a glue chamber 2 plug. Each glue chamber 2 is provided with a plurality of mounting holes 5 along its length direction, the mounting holes 5 are connected with the glue chamber 2 and penetrate the body 1, and the mounting holes 5 are provided with nozzles 6 and striker assemblies 7 for controlling the opening and closing of the nozzles 6.
[0018] The hose 3 is filled with slurry such as solder paste or insulating glue. By pressurizing the hose 3, the slurry enters the glue cavity 2. When it is necessary to spray the slurry, the striker assembly 7 reciprocates along its own length under the action of the driving device to control the switch of the nozzle 6, thereby controlling the slurry to spray out or stop spraying. In this way, the method of spraying slurry replaces the method of printing slurry, and multiple nozzles 6 are used to spray slurry onto the battery cell in a quantitative manner at the same time. The nozzle 6 will not directly contact the battery cell, thereby avoiding problems such as battery cell contamination and hidden crack damage. At the same time, the direct spraying method is adopted, and the nozzle 6 is controlled by the striker 74 device to start and stop immediately, so that the slurry can be quickly sprayed directly onto the battery cell, which improves the slurry coating speed and equipment production capacity.
[0019] In one embodiment, the plugs of the rubber hose 3 and the rubber cavity 2 are arranged alternately, so as to facilitate the arrangement of the rubber hose 3 .
[0020] In one embodiment, the striker assembly 7 includes a base 71, a sleeve 72, a spring 73 and a striker 74. The sleeve 72 is sleeved on the base 71, and the base 71 is arranged on the mounting hole 5. A sealing gasket is provided between the base 71 and the mounting hole 5 to prevent slurry leakage. The striker 74 is slidably connected to the base 71 and the sleeve 72. The spring 73 is arranged in the sleeve 72 and sleeved on the striker 74. The two ends of the spring 73 are respectively fixed to the base 71 and the striker 74. Under the action of the driving device, the striker 74 reciprocates along the senior length direction by relying on the spring 73 to control the opening and closing of the nozzle 6. The driving device can be a piezoelectric device, or a cam device, etc.
[0021] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A slurry coating device, comprising a body, characterized in that: The body is provided with a plurality of rubber cavities, one end of the rubber cavity is provided with a rubber hose, the other end of the rubber cavity is provided with a rubber cavity plug, each of the rubber cavities is provided with a plurality of mounting holes along its length direction, the mounting holes are provided with a nozzle and a striker assembly for controlling the nozzle switch.
2. The slurry coating device according to claim 1, characterized in that: The firing pin assembly includes a base, a sleeve, a spring and a firing pin. The base is arranged in a mounting hole, the sleeve is sleeved on the base, the firing pin is slidably connected to the base and the sleeve, the spring is arranged in the sleeve and sleeved on the firing pin, and the two ends of the spring are respectively fixed to the base and the firing pin.