Gluing head for full-screen photovoltaic module

Abstract

The utility model discloses a full-screen photovoltaic module gluing head, and belongs to the technical field of photovoltaic module production. The gluing head is used for gluing a laminated piece; comprising a gluing head, a circulation channel for glue is formed in the gluing head, an inlet of the circulation channel is a glue inlet, and an outlet of the circulation channel is a glue outlet; the side, close to the glue outlet, of the gluing head is obliquely arranged, the end, close to the glue inlet, of the glue outlet is the first end of the glue outlet, and the end, away from the glue inlet, of the glue outlet is the second end of the glue outlet. A baffle is arranged on the side, close to the first end of the glue outlet, of the glue outlet in a protruding mode. According to the scheme, glue enters the circulation channel from the glue inlet of the gluing head to the glue outlet, the glue flows out of the glue outlet and then falls to the edge of the back face of the laminated piece, and meanwhile the glue close to the first end of the glue outlet is arranged on the side face of the laminated piece in a coating mode under blocking and guiding of the baffle. Therefore, the two surfaces of the multi-layer pressing piece can be glued at the same time through gluing in one procedure.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic module production, and more specifically, to a glue head for applying glue to a full-screen photovoltaic module. Background Art

[0002] Existing conventional photovoltaic modules usually form a frame by using a photovoltaic module frame and a lamination. The photovoltaic module frame plays a role in supporting and facilitating installation. During frame formation, the photovoltaic module frame and the lamination are fixedly connected by a colloid. In order to increase the area of sunlight absorption when existing photovoltaic modules are in use, most of them adopt the design of a full-screen frame.

[0003] The existing process for framing a full-screen frame and a lamination is to apply glue on the photovoltaic module frame by using a glue head. For example, the patent with the publication number CN218742832U discloses a glue head for applying glue to the frame of a full-screen photovoltaic module. The frame is placed on a platform, and the glue head is vertically suspended above the frame, and glue is applied in the glue groove of the frame; or the frame is inclined, and similarly, the glue head is suspended above the frame, and glue is applied in the glue groove of the frame.

[0004] However, the following problems are likely to occur through this kind of framing process:

[0005] First, when the frame is placed on the glue application platform, the lower part of the frame is supported by support columns, as Figure 1 shown, and other positions of the frame are in a suspended state. In this case, it is difficult for the frame to maintain a horizontal state, and the glue lines are likely to be uneven in height during the glue application process, resulting in the phenomenon that there is lack of glue inside the frame at some positions, thick glue lines outside at some positions, and poor glue overflow on the front surface during frame formation;

[0006] Second, when the glue line of the glue application is relatively low, it is likely to cause lack of glue on the A surface inside the frame, affecting the load capacity of the module;

[0007] Third, when the glue line of the glue application is relatively high, it is likely to cause glue overflow on the glass surface. It is necessary to clean the glue overflow on the glass surface of the module, and also stop the machine to clean the frame-forming machine, the frame-forming platform, the assembly line conveyor belt, etc., which has a great impact on the production rhythm and production capacity;

[0008] Fourth, when the sealant is applied on the frame, when the frame is placed on the frame-forming platform, the claw for fixing the frame is likely to contact the sealant on the frame, damaging the glue line, resulting in an unattractive glue line on the back surface after frame formation. Content of the Utility Model

[0009] The utility model provides a glue head for applying glue to a full-screen photovoltaic module, which is used for applying glue to the lamination in the full-screen photovoltaic module, so as to solve the problem of poor glue application caused by applying glue to the frame during the frame formation of the existing photovoltaic module.

[0010] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0011] A glue coating head for a full-screen photovoltaic module is used for coating glue on a laminate; it comprises a glue coating head, in which a flow channel for a colloid is provided, the inlet of the flow channel is a glue inlet, and the outlet is a glue outlet; the glue coating head is tilted on a side close to the glue outlet, the end of the glue outlet closer to the glue inlet is a first end of the glue outlet, and the end farther from the glue inlet is a second end of the glue outlet; a baffle is protrudingly provided on a side of the glue outlet close to the first end of the glue outlet.

[0012] In this solution, the colloid enters the flow channel from the glue inlet of the glue head to the glue outlet, and the colloid flows out from the glue outlet and falls to the back edge of the laminate. At the same time, the colloid near the first end of the glue outlet is blocked and guided by the baffle and coated on the side of the laminate, so that the two sides of the multi-layer laminate can be coated at the same time through one gluing process.

[0013] As a preferred embodiment, the width of the glue outlet of the circulation channel gradually decreases from the first end of the glue outlet to the second end of the glue outlet. Compared with the wider opening at the first end of the glue outlet, the opening at the second end of the glue outlet is smaller, so that the amount of glue discharged near the first end of the glue outlet is larger, and therefore more glue is present at the edge of the back side of the laminate.

[0014] As an embodiment, the glue head includes a connected mounting head and a rubber hose, and the width of the flow channel in the rubber hose gradually decreases from the first end of the glue outlet to the second end of the glue outlet. The structure of the flow channel in the entire rubber hose is consistent, which reduces the resistance of the glue outlet to avoid glue discharge obstruction.

[0015] Furthermore, the end surface of the rubber tube near the glue outlet is in an arc transition from the first end of the glue outlet to the second end of the glue outlet, and is concave toward one side near the rubber tube, so as to further increase the amount of glue applied near the first end of the glue outlet.

[0016] Preferably, the cross section of the flow channel in the rubber hose is in a trapezoidal shape. The trapezoidal shape is an isosceles trapezoid. The shape of the rubber hose is set to an isosceles trapezoidal shape, so that the shape of the glue out is more regular, thereby making it easier to control the uniformity of the glue coating.

[0017] As a further improvement, the flow channel in the hose has four side surfaces, and the connection between adjacent side surfaces is smoothly transitioned, which can reduce the concentrated stress at the connection of the side surfaces in the flow channel and improve the structural strength of the hose.

[0018] As a further improvement, the installation head and the rubber tube are integrally formed by injection molding to form the glue applying head, so that the connection strength between the installation head and the rubber tube is better, and the method of obtaining the glue applying head is more convenient, and the shape of the circulation channel is easier to form. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of gluing the frame of a photovoltaic module in the prior art;

[0020] Figure 2 is a front view of the glue head for gluing a full-screen photovoltaic module provided in the embodiment;

[0021] Figure 3 is a three-dimensional view of the glue head for gluing a full-screen photovoltaic module provided in the embodiment;

[0022] Figure 4 is Figure 2 a bottom view of the glue head in

[0023] Figure 5 is a schematic diagram of the state when the glue head glues the laminate;

[0024] Figure 6 is a schematic diagram of the relative position between the glue head and the laminate when the glue head glues the laminate;

[0025] Figure 7 is a schematic diagram of the structure of the photovoltaic module formed by combining the laminate and the frame.

[0026] Label description:

[0027] 1. Glue applicator head; 11. Mounting head; 12. Glue pipe; 120. Glue outlet; 121. First end of the glue outlet; 122. Second end of the glue outlet; 123. Baffle; 2. Laminate; 21. Back transition edge; 3. Colloid layer; 4. Frame; 41. Glue overflow groove; 5. Support column. Detailed implementation manners

[0028] To further understand the content of the present invention, the present invention will be described in detail in combination with the drawings and embodiments.

[0029] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present invention can cover. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like cited in this specification are only for the convenience of description and are not used to limit the scope of implementation. The change or adjustment of their relative relationship, without substantial change of the technical content, should also be regarded as the scope that the present invention can implement.

[0030] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such data used can be interchanged under appropriate circumstances for the embodiments of this application described herein.

[0031] As Figure 1 shown, the existing photovoltaic module includes a frame 4 of the photovoltaic module and a laminate 2. Usually, glue is applied on the frame 4 of the photovoltaic module, and then the laminate 2 is framed by pasting with the applied colloid, thus forming a photovoltaic module. However, it is found in actual production that applying glue on the frame of the photovoltaic module is likely to cause various glue application defects. Therefore, the present utility model provides a glue application nozzle for applying glue on the laminate.

[0032] For a full-screen photovoltaic module, when the laminate and the frame are framed, the back of the laminate near the edge and the four sides of the side of the laminate need to be adhesively connected to the frame through colloid so that the laminate and the frame are firmly connected. If a conventional glue application nozzle is used to apply glue to the laminate, it is necessary to apply glue once around the four sides of the back of the laminate near the edge respectively, and apply glue again around the four sides of the side of the laminate. In this way, not only does the glue application process increase, but also the glue application machine needs to be modified for the glue application around the four sides of the side of the laminate, resulting in increased costs and possibly more difficult-to-control glue application defects.

[0033] Combined with Figure 2 、 Figure 3 and Figure 4 shown, the present embodiment provides a glue application nozzle for a full-screen photovoltaic module for applying glue to the laminate 2. The glue application head 1 has a flow channel for the colloid opened therein. The inlet of the flow channel is the glue inlet, and the outlet is the glue outlet 120. One side of the glue application head 1 close to the glue outlet 120 is inclined. After being inclined, the end of the glue outlet 120 closer to the glue inlet is the first end 121 of the glue outlet, and the end farther from the glue inlet is the second end 122 of the glue outlet; a baffle 123 protrudes on the side of the glue outlet 120 close to the first end 121 of the glue outlet.

[0034] Here, in order to facilitate the description of the relative positions of the first end 121 and the second end 122 of the glue outlet 120 after one side of the glue outlet 120 is inclined, both are relative to the glue inlet. The end of the two closer to the glue inlet is the first end 121 of the glue outlet, and the end farther from the glue inlet is the second end 122 of the glue outlet.

[0035] Combined with Figure 5 and Figure 6 shown, when the glue application head 1 applies glue to the laminate 2, the glue application head 1 is suspended above the laminate 2 (in order to Figure 6(Description is made with respect to the middle view orientation), the back surface of the laminate 2 is arranged facing upward, and the baffle 123 is located on the side surface of the laminate 2. When applying glue, the glue enters the flow channel from the glue inlet of the glue applicator head 1 to the glue outlet 120, and after flowing out through the glue outlet 120, it falls to the edge of the back surface of the laminate 2. At the same time, the glue near the first end 121 of the glue outlet is applied to the side surface of the laminate 2 under the blocking and guiding of the baffle 123. See Figure 5 , during the glue application process, the glue applicator head 1 moves along the edge of the back surface of the laminate 2, and during the movement, the glue is simultaneously applied to form a glue layer 3 at the edge of the back surface of the laminate 2 and on the side surface of the laminate 2.

[0036] As a preferred embodiment, the width of the glue outlet 120 of the flow channel gradually decreases from the first end 121 to the second end 122 of the glue outlet. As Figure 4 shown in, the opening at the first end 121 of the glue outlet is relatively wide, and the opening at the second end 122 of the glue outlet is relatively small, so that the glue output near the first end 121 of the glue outlet is relatively large. Therefore, there is more glue at the outermost edge of the back surface of the laminate 2. See Figure 7 As shown, when the laminate 2 after applying the glue layer 3 is framed with the frame 4, the glue in the glue layer 3 will overflow in the overflow groove 41 when being extruded, and the glue fills the entire overflow groove 41. Applying more glue at the outermost edge of the back surface of the laminate 2 is more conducive to overflow, so that the laminate 2 and the frame 4 are firmly connected together.

[0037] In some cases, there is a chamfered back transition edge 21 at the connection between the back surface and the side surface of the laminate 2, so that more glue needs to be applied here. Therefore, the opening of the first end 121 of the glue outlet is set larger.

[0038] In one case, the glue applicator head 1 includes a connected mounting head 11 and a glue tube 12, and the width of the flow channel in the glue tube 12 gradually decreases from the first end 121 to the second end 122 of the glue outlet. The flow channel structure in the entire glue tube 12 is consistent, reducing the glue output resistance at the glue outlet 120 and avoiding glue output blockage.

[0039] Regarding the glue outlet 120, the end face of the glue tube 12 close to the glue outlet 120 has an arc transition from the first end 121 to the second end 122 of the glue outlet, and is recessed toward the side close to the glue tube 12. Specifically see Figure 2 shown in, the first end 121 of the glue outlet is closest to the glue inlet. On the one hand, it makes the end face of the glue outlet 120 fit the back transition edge 21 of the laminate 2, and on the other hand, it further increases the glue application amount near the first end 121 of the glue outlet.

[0040] Combined with Figure 4As shown, the cross-section of the flow channel inside the rubber hose 12 is trapezoidal. As a specific implementation manner, the trapezoid is an isosceles trapezoid. As a preferred implementation manner, the rubber hose 12 is shaped as an isosceles trapezoid, so that the shape of the discharged glue is more regular, which is more convenient for controlling the uniformity of glue application. Of course, in other cases, the rubber hose 12 can also be set to other shapes.

[0041] Furthermore, the flow channel inside the rubber hose 12 has four side surfaces, and the connection between adjacent side surfaces is smoothly transitioned. This can reduce the concentrated stress at the connection of the inner side surfaces of the flow channel, improve the structural strength of the rubber hose 12, and thus extend the service life of the glue application head. Moreover, the whole glue outlet 120 is flat, making the discharged glue shape more adaptable to the shape of the required glue layer 3. Compared with the discharged glue shape of the existing cylindrical glue outlet being thinner, the flat glue outlet is easier to control the glue shape and width of glue application.

[0042] The glue application head 1 includes a connected mounting head 11 and a rubber hose 12. The mounting head 11 and the rubber hose 12 are integrally formed by injection molding to form the glue application head 1. This makes the connection strength between the mounting head 11 and the rubber hose 12 better, and at the same time makes the method of obtaining the glue application head 1 more convenient and easier to form the shape of the flow channel.

[0043] The terms "mount", "set", "provided with", "connected" referred to here should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, components or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0044] The above schematically describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the creation of the present invention, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A glue coating head for a full-screen photovoltaic module, used for coating a laminate (2); It comprises a glue applying head (1), wherein a flow channel for a glue is provided in the glue applying head (1), wherein the inlet of the flow channel is a glue inlet, and the outlet is a glue outlet (120); Features: The glue spraying head (1) is tiltedly arranged on one side close to the glue outlet (120); the end of the glue outlet (120) closer to the glue inlet is the glue outlet first end (121), and the end farther from the glue inlet is the glue outlet second end (122); a baffle (123) is protrudingly arranged on one side of the glue outlet (120) close to the glue outlet first end (121).

2. The glue head for the full-screen photovoltaic module according to claim 1, wherein: The width of the glue outlet (120) of the circulation channel gradually decreases from the glue outlet first end (121) to the glue outlet second end (122).

3. The glue head for the full-screen photovoltaic module according to claim 1 or 2, characterized in that: The glue applying head (1) comprises a connected mounting head (11) and a glue hose (12), wherein the width of the flow channel in the glue hose (12) gradually decreases from the first glue outlet end (121) to the second glue outlet end (122).

4. The glue head for the full-screen photovoltaic module according to claim 3, characterized in that: The end surface of the rubber tube (12) close to the rubber outlet (120) transitions in an arc from the first end (121) of the rubber outlet to the second end (122) of the rubber outlet, and is concave toward a side close to the rubber tube (12).

5. The glue head for coating a full-screen photovoltaic module according to claim 3, characterized in that: The cross section of the flow channel in the rubber hose (12) is in a trapezoidal shape.

6. The glue head for applying glue to the full-screen photovoltaic module according to claim 5, characterized in that: The trapezoid is an isosceles trapezoid.

7. The glue head for coating a full-screen photovoltaic module according to claim 5, characterized in that: The flow channel in the rubber hose (12) has four side surfaces, and the connection between adjacent side surfaces is smoothly transitioned.

8. The glue head for applying glue to the full-screen photovoltaic module according to claim 7, wherein: The mounting head (11) and the rubber hose (12) are integrally formed by injection molding to form the glue applying head (1).

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