Coating glue outlet head and dispensing valve for photovoltaic glass
By designing the adhesive dispensing groove and guide hole structure of the photovoltaic glass coating dispensing head, the problem of uneven adhesive layer in the photovoltaic glass dispensing process was solved, and a uniform strip adhesive layer was achieved, replacing the use of traditional tape.
Patent Information
- Application Number
- CN202520202307.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-10
AI Technical Summary
In the existing technology, the dispensing process for photovoltaic glass cannot guarantee the uniformity and quality of the adhesive layer, especially when replacing double-sided tape, the processing technology is cumbersome and it is difficult to achieve a uniform strip adhesive layer.
Design a coating dispensing head for photovoltaic glass, including a dispensing plane, a glue inlet, a dispensing groove, and a glue guide hole. The inclined glue guide hole and the baffle form a rectangular dispensing nozzle to ensure the uniformity of glue dispensing on the entire dispensing surface.
It achieves a strip-shaped glue pattern in a single application while ensuring uniform glue distribution, avoiding local voids or bumps, improving the uniformity of the glue layer, and significantly replacing adhesive tape.
Smart Images
Figure CN223915797U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dispensing technology, and in particular to a coating dispensing head for photovoltaic glass. Background Technology
[0002] A solar photovoltaic (PV) system is a facility that converts solar energy into direct current (DC) electricity using the photovoltaic effect of photovoltaic semiconductor materials. The core of a PV system is the solar panel, and the semiconductor materials used to generate electricity mainly include monocrystalline silicon panels, polycrystalline silicon panels, and amorphous silicon panels. Solar panels are made by bonding solar cells to a transparent glass cover with adhesive. Current technology typically uses double-sided tape to bond the cells around the edges of the glass cover, a relatively cumbersome process. If a direct application of adhesive is used, the uniformity and quality of the adhesive layer, which replaces double-sided tape, cannot be guaranteed. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a coating dispensing head for photovoltaic glass, which can ensure the uniformity of the dispensing amount on the entire dispensing surface while achieving a strip-shaped dispensing pattern in a single dispensing operation.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a coating dispensing head for photovoltaic glass, comprising: a body, one side surface of the body being a dispensing plane, a vertically extending glue inlet hole being formed on the upper surface of the body, a dispensing groove being formed on the dispensing plane and below the glue inlet hole, the upper end of the vertically extending dispensing groove being connected to the lower end of the glue inlet hole through an inclined glue guide hole, and the lower end of the glue guide hole extending to the dispensing plane, a baffle being installed on the dispensing plane and outside the dispensing groove and below the glue inlet hole, the lower part of the dispensing groove being configured as a rectangular groove, thereby forming a rectangular dispensing port between the surface of the baffle facing the dispensing plane and the bottom of the dispensing groove.
[0005] The following are further improvements to the above technical solution:
[0006] 1. In the above scheme, the outer side of the upper end of the body has an outwardly extending flange portion in a radial direction.
[0007] 2. In the above scheme, both the glue inlet and the glue guide hole are circular holes.
[0008] 3. In the above scheme, an annular groove is formed on the inner wall of the upper end of the glue inlet hole, which has a circular cross-section, and a spacer ring with an inner wall flush with the glue inlet hole is embedded in the annular groove.
[0009] A dispensing valve is also provided, wherein the dispensing port of the dispensing valve is connected to any of the above-mentioned coating dispensing heads for photovoltaic glass.
[0010] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:
[0011] This invention relates to a coating dispensing head for photovoltaic glass. One side surface of the head is a dispensing plane, and a vertically extending glue inlet hole is formed on the upper surface of the head. A dispensing groove is formed on the dispensing plane below the glue inlet hole. The upper end of the vertically extending dispensing groove is connected to the lower end of the glue inlet hole through an inclined glue guide hole, and the lower end of the guide hole extends to the dispensing plane. A baffle is installed on the dispensing plane below the glue inlet hole and outside the dispensing groove. The lower part of the dispensing groove is set as a rectangular groove, thereby forming a rectangular dispensing orifice between the surface of the baffle facing the dispensing plane and the bottom of the dispensing groove. While achieving a strip-shaped dispensing pattern in a single dispensing operation, it can ensure the uniformity of the dispensing amount across the entire dispensing surface, thereby improving the uniformity of the strip-shaped glue layer with a certain width formed by continuous dispensing, which is used to replace tape, and avoiding the formation of voids or bumps in some areas. Attached Figure Description
[0012] Appendix Figure 1 This is a schematic diagram of the overall structure of the coating and dispensing head for photovoltaic glass according to this utility model;
[0013] Appendix Figure 2 This is a partial structural diagram of the coating and dispensing head for photovoltaic glass according to this utility model;
[0014] Appendix Figure 3 This is a partial cross-sectional view of the coating and dispensing head of the present invention for photovoltaic glass.
[0015] In the above attached figures: 1. Body; 2. Inlet hole; 3. Outer flange; 4. Annular groove; 5. Spacer ring; 6. Outlet plane; 61. Outlet groove; 7. Guide hole; 8. Baffle. Detailed Implementation
[0016] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.
[0017] Example 1: A coating dispensing head for photovoltaic glass includes: a body 1, one side surface of the body 1 being a dispensing plane 6, a vertically extending glue inlet hole 2 being formed on the upper surface of the body 1, a dispensing groove 61 being formed on the dispensing plane 6 below the glue inlet hole 2, the upper end of the vertically extending dispensing groove 61 being connected to the lower end of the glue inlet hole 2 through an inclined glue guide hole 7, and the lower end of the glue guide hole 7 extending to the dispensing plane 6, a baffle 8 being installed on the dispensing plane 6 below the glue inlet hole 2 and outside the dispensing groove 61, the lower part of the dispensing groove 61 being a rectangular groove, thereby forming a rectangular dispensing opening between the surface of the baffle 8 facing the dispensing plane 6 and the bottom of the dispensing groove 61.
[0018] The outer side of the upper end of the above-mentioned body 1 has an outwardly extending flange 3; the above-mentioned glue inlet hole 2 and glue guide hole 7 are both circular holes.
[0019] An annular groove 4 is formed on the inner wall of the upper end of the glue inlet hole 2, which has a circular cross-section. A spacer ring 5 with an inner wall flush with the glue inlet hole 2 is embedded in the annular groove 4.
[0020] Example 2: A coating dispensing head for photovoltaic glass includes: a body 1, one side surface of the body 1 being a dispensing plane 6, a vertically extending glue inlet hole 2 being formed on the upper surface of the body 1, a dispensing groove 61 being formed on the dispensing plane 6 and below the glue inlet hole 2, the upper end of the vertically extending dispensing groove 61 being connected to the lower end of the glue inlet hole 2 through an inclined glue guide hole 7, and the lower end of the glue guide hole 7 extending to the dispensing plane 6, a baffle 8 being installed on the dispensing plane 6 and outside the dispensing groove 61, the lower part of the dispensing groove 61 being a rectangular groove, thereby forming a rectangular dispensing opening between the surface of the baffle 8 facing the dispensing plane 6 and the bottom of the dispensing groove 61;
[0021] An annular groove 4 is formed on the inner wall of the upper end of the glue inlet hole 2, which has a circular cross-section. A spacer ring 5 with an inner wall flush with the glue inlet hole 2 is embedded in the annular groove 4.
[0022] Example 3: A dispensing valve, wherein a coating nozzle for photovoltaic glass is connected to the dispensing port of the dispensing valve.
[0023] The dispensing valve is mounted on a three-axis drive mechanism and is used to apply adhesive to the edges of rectangular photovoltaic glass.
[0024] During dispensing, the photovoltaic glass to be dispensed is placed horizontally below the dispensing head. Under the action of the three-axis drive mechanism, the dispensing head is first moved to a suitable height at a corner of the photovoltaic glass, so that the rectangular dispensing orifice of the dispensing head is parallel to one side of the photovoltaic glass. Then, the three-axis drive mechanism drives the dispensing head to move along the length of the other side of the photovoltaic glass. At the same time, the dispensing valve is opened, and a dispensing gap is formed between the sealing part of the dispensing head and the dispensing orifice, thereby realizing the dispensing operation on one edge of the photovoltaic glass. Through the design of the dispensing head structure, while achieving a strip-shaped dispensing pattern in a single dispensing, the uniformity of the dispensing amount on the entire dispensing surface can be ensured. This improves the uniformity of the strip-shaped adhesive layer with a certain width formed by continuous dispensing, which is used to replace the tape, and avoids the formation of voids or bumps in some areas.
[0025] When using the above-mentioned coating dispensing head for photovoltaic glass, it can ensure the uniformity of the dispensing amount on the entire dispensing surface while achieving a strip-shaped dispensing pattern in a single dispensing operation. This improves the uniformity of the strip-shaped adhesive layer with a certain width formed by continuous dispensing, which is used to replace the tape, and avoids the formation of voids or bumps in certain areas.
[0026] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A coating applicator for photovoltaic glass, comprising: The body (1) is characterized in that: one side surface of the body (1) is a glue discharging plane (6), an upper surface of the body (1) is provided with a vertically extending glue feeding hole (2), a glue discharging groove (61) is arranged on the glue discharging plane (6) and below the glue feeding hole (2), the upper end of the vertically extending glue discharging groove (61) is communicated with the lower end of the glue feeding hole (2) through an obliquely arranged glue guiding hole (7), the lower end of the glue guiding hole (7) extends to the glue discharging plane (6), a baffle (8) is arranged on the glue discharging plane (6) and below the lower end of the glue feeding hole (2) and outside the glue discharging groove (61), the lower part of the glue discharging groove (61) is arranged as a rectangular groove, thereby forming a rectangular glue dispensing opening between the surface of the baffle (8) facing the glue discharging plane (6) and the bottom of the glue discharging groove (61).
2. The coating applicator head for photovoltaic glass according to claim 1, characterized in that: The outer side of the upper end of the body (1) is provided with an outer flange part (3) extending radially outward.
3. The coating applicator head for photovoltaic glass according to claim 1, characterized in that: The glue feeding hole (2) and the glue guiding hole (7) are both circular holes.
4. The coating applicator head for photovoltaic glass according to claim 1, characterized in that: An annular groove (4) is arranged on the inner wall of the upper end of the glue feeding hole (2) with a circular cross section, an inner wall of the annular groove (4) is flush with the glue feeding hole (2), and a partition ring (5) is embeddedly arranged in the annular groove (4).
5. A dispensing valve, characterized in that: The glue discharging opening of the glue dispensing valve is connected with the glue coating head for photovoltaic glass according to any one of claims 1-4.