Photovoltaic module frame gluing head and photovoltaic module production system

Abstract

The utility model discloses a photovoltaic module frame gluing head and a photovoltaic module production system, and belongs to the technical field of photovoltaic module manufacturing. The photovoltaic module frame gluing head comprises a gluing head, a circulation channel for glue is arranged 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 and forms an oblique side face, and the included angle between the oblique side face and the extending direction of the circulation channel is an oblique angle alpha; one end, which is closer to the glue inlet, of the inclined side surface is a first end of the glue pipe, and one end, which is farther away from the glue inlet, of the inclined side surface is a second end of the glue pipe; and the width of a glue outlet of the circulation channel is gradually reduced from the second end of the glue pipe to the first end of the glue pipe. The glue outlet amount of the glue body from the first end of the glue outlet can be relatively inhibited, so that the glue outlet amounts of different parts of the whole glue outlet are more uniform, and the glue outlet type, the glue outlet width and the glue coating thickness can be controlled more easily.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic module manufacturing, and more specifically, to a glue head for gluing the frame of a photovoltaic module and a photovoltaic module production system. Background Art

[0002] Photovoltaic modules usually need to be equipped with photovoltaic aluminum frames to play a role in support and facilitate installation. The glue storage grooves of the aluminum frames are mainly filled and sealed with sealant to fix the laminates, achieving good weather resistance, waterproofness, insulation and shock resistance, as well as supporting the photovoltaic modules. When existing photovoltaic panels are in use, in order to increase the area of sunlight absorption, most of them adopt the design of a full-screen frame. In order to achieve the glue filling of the full-screen frame, a glue head adapted to it is generally used.

[0003] After retrieval, the patent with the publication number CN218742832U discloses a glue head for gluing the frame of a full-screen photovoltaic module, including a glue head and a fixed head, and a glue outlet is arranged at one end of the fixed head. In this solution, the cross-section of the glue outlet pipe in the fixed head is circular, and the glue outlet is uneven when the glue head applies glue, it is not easy to adjust the glue application thickness and the glue outlet width at different parts of the frame, and it is not easy to control the glue amount at different parts in the glue storage groove. Summary of the Utility Model

[0004] The utility model provides a glue head for gluing the frame of a photovoltaic module and a photovoltaic module production system, which can make the glue outlet of the glue head more uniform, and is easier to control the glue outlet type, the glue outlet width and the glue application thickness.

[0005] To achieve the above object, the technical solution provided by the utility model is as follows:

[0006] A glue head for gluing the frame of a photovoltaic module includes a caulking head, and a circulation channel for the glue is opened in the caulking head. The inlet of the circulation channel is a glue inlet, and the outlet is a glue outlet.

[0007] One side of the caulking head close to the glue outlet is inclined to form an inclined side surface. The included angle between the inclined side surface and the extending direction of the circulation channel is an inclined angle α; one end of the inclined side surface closer to the glue inlet is the first end of the glue pipe, and the end farther from the glue inlet is the second end of the glue pipe; the width of the glue outlet of the circulation channel gradually decreases from the second end of the glue pipe to the first end of the glue pipe.

[0008] As a preferred implementation manner, the caulking head includes a mounting head and a glue pipe. One end of the mounting head is configured to be connected to a caulking machine, and the other end is connected to the glue pipe; the circulation channel penetrates through the mounting head and the glue pipe.

[0009] Furthermore, the mounting head and the glue pipe are integrally formed by injection molding to form the caulking head.

[0010] In one embodiment, the cross-section of the glue inlet is circular.

[0011] Further, the cross-section of the glue outlet is trapezoidal; the cross-section of the flow channel gradually changes from the circular shape of the glue inlet to the trapezoidal shape of the glue outlet.

[0012] Even further, the cross-section of the flow channel gradually changes from the circular shape of the glue inlet to the trapezoidal shape of the glue outlet at the mounting head.

[0013] Further, the glue outlet has four sides, and the connection between adjacent sides is smoothly transitioned.

[0014] Specifically, the size of the inclination angle α is 40° - 50°.

[0015] As a further improvement, the inclination angle α is 45°.

[0016] The present utility model also provides a photovoltaic module production system, including a frame and the glue head for applying glue to the photovoltaic module frame as described above;

[0017] The frame is inclined, and the angle between the side B of the frame and the plane where the frame is located is an included angle β;

[0018] When applying glue, the glue head for applying glue to the photovoltaic module frame is suspended above the glue storage groove of the frame, the glue outlet is arranged towards the glue storage groove, and the size of the included angle β is the same as the size of the inclination angle α.

[0019] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects:

[0020] (1) For the glue head for applying glue to the photovoltaic module frame of the present utility model, the width of the glue outlet of the flow channel gradually decreases from the second end of the glue pipe to the first end of the glue pipe, so that the cross-sectional area of the glue flow channel near the first end of the glue outlet is smaller than the cross-sectional area of the glue flow channel near the second end of the glue outlet, thereby relatively suppressing the glue output amount from the first end of the glue outlet, making the glue output amounts at different parts of the entire glue outlet more uniform, and being able to more easily control the glue application type, the glue application width, and the glue application thickness.

[0021] (2) For the glue head for applying glue to the photovoltaic module frame of the present utility model, the cross-section of the flow channel gradually changes from the circular shape of the glue inlet to the trapezoidal shape of the glue outlet, and the mounting head and the glue pipe can be formed into a glue applying head by an injection molding integral forming method, which makes it easier to form the shape of the flow channel.

[0022] (3) A glue head for coating the frame of a photovoltaic module according to the present utility model, the cross-section of the flow channel gradually changes from the shape of a circular glue inlet at the installation head to the shape of a trapezoidal glue outlet, which can reduce the influence of the change in the shape of the flow channel on the glue outlet situation, reduce the glue outlet resistance at the glue outlet, lower the pressure in the glue pipe, and effectively avoid the bursting of the glue pipe.

[0023] (4) A production system for photovoltaic modules according to the present utility model uses the glue head for coating the frame of a photovoltaic module and has the beneficial effects of the glue head.

[0024] (5) In a production system for photovoltaic modules according to the present utility model, the angle β between the side surface of the frame B of the frame and the plane where the frame is located is the same as the inclination angle α, so that the side surface of the glue outlet matches the coating area, which can facilitate the control of the coating width and the coating thickness. Description of the Drawings

[0025] Figure 1 Schematic three-dimensional structure diagram of the glue head in the embodiment;

[0026] Figure 2 Front view of the glue head in the embodiment;

[0027] Figure 3 For Figure 2 Right view of the glue head in

[0028] Figure 4 For Figure 2 Top view of the glue head in

[0029] Figure 5 Schematic diagram of the state of the glue head during coating in the embodiment.

[0030] Label Description:

[0031] 1. Installation head; 11. Glue inlet; 2. Glue pipe; 20. First end of the glue pipe; 21. Glue outlet; 211. First end of the glue outlet; 212. Second end of the glue outlet; 22. Second end of the glue pipe; 3. Frame; 31. Glue storage tank; 32. Side surface of frame B; 4. Coating area. Detailed Embodiment

[0032] To further understand the content of the present utility model, the present utility model will be described in detail in combination with the drawings and embodiments.

[0033] The structures, proportions, sizes, etc. shown in the attached drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they do not have substantial technical significance. Any modification of the structure, change in 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 covered by the technical content disclosed in this utility model.

[0034] It should be noted that the terms "first", "second", etc. in the specification, claims, and the above-mentioned attached drawings of this application are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances for the embodiments of this application described herein.

[0035] In this application, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "middle", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the attached drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated devices, components, or constituent parts must have a specific orientation or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0036] Photovoltaic modules are usually formed by combining a photovoltaic module frame and a laminate. The laminate is fixedly connected to the frame of the photovoltaic module through a colloid. Usually, a glue storage groove is provided on the frame of the photovoltaic module, and a colloid is applied in the glue storage groove through a glue applicator. After the laminate is arranged on the frame of the photovoltaic module, it is fixedly connected through the colloid. When existing photovoltaic panels are in use, in order to increase the area of sunlight absorption, most of them adopt the design of a full-screen frame. However, when using the existing glue applicator head for glue application, the phenomenon of uneven glue application often occurs.

[0037] As Figure 1 shown, in this embodiment, a glue applicator head for applying glue to the frame of a photovoltaic module is provided, which includes a glue applicator head. A flow channel for the colloid is opened in the glue applicator head. The inlet of the flow channel is the glue inlet 11, and the outlet is the glue outlet 21. The glue applicator head is connected to a glue applicator. During glue application, the colloid enters the flow channel through the glue inlet 11 at the inlet of the glue applicator head and exits through the glue outlet 21 at the outlet.

[0038] Combined with Figure 3As shown in the figure, further, one side of the caulking head in this embodiment is inclined near the glue outlet 21 and forms an inclined side surface. Specifically, the included angle between the inclined side surface and the extending direction of the circulation channel is the inclination angle α. One end of the inclined side surface closer to the glue inlet 11 is the first end 20 of the rubber tube, and the end farther from the glue inlet 11 is the second end 22 of the rubber tube. Here, in order to facilitate the description of the inclined setting of one side of the glue outlet 21 and the relative positions of the first end 20 and the second end 22 of the rubber tube, both are relative to the glue inlet 11. The end closer to the glue inlet 11 of the two is the first end 20 of the rubber tube, and the end farther from the glue inlet 11 is the second end 22 of the rubber tube. In this embodiment, the width of the glue outlet 21 of the circulation channel gradually decreases from the second end 22 of the rubber tube to the first end 20 of the rubber tube.

[0039] Specifically, in combination with Figure 2 and Figure 4 As shown, one side of the glue outlet 21 close to the first end 20 of the rubber tube is the first end 211 of the glue outlet, and the side close to the second end 22 of the rubber tube is the second end 212 of the glue outlet. The width of the glue outlet 21 gradually decreases from the second end 212 of the glue outlet to the first end 211 of the glue outlet.

[0040] In the existing caulking head, the size of the circulation channel is usually the same from the second end 212 to the first end 211 of the glue outlet. In this case, when the colloid enters through the glue inlet 11 and exits through the glue outlet 21, the colloid first reaches the first end 20 of the rubber tube and preferentially flows out through the first end 211 of the glue outlet, resulting in more colloid flowing out from the first end 211 of the glue outlet than from the second end 212 of the glue outlet, causing uneven glue application. In the caulking head for coating the photovoltaic module frame in this embodiment, the width of the glue outlet 21 is set to gradually decrease from the second end 212 to the first end 211 of the glue outlet, so that the cross-sectional area of the colloid circulation channel near the first end 211 of the glue outlet is smaller than that near the second end 212 of the glue outlet, thereby relatively suppressing the glue output from the first end 211 of the glue outlet, making the glue output at different parts of the entire glue outlet 21 more uniform, and making it easier to control the glue application type, the glue application width, and the coating thickness.

[0041] As a preferred improvement method, the caulking head includes a mounting head 1 and a rubber tube 2. One end of the mounting head 1 is configured to be connected to a caulking machine, and the other end is connected to the rubber tube 2; the circulation channel penetrates through the mounting head 1 and the rubber tube 2. The glue inlet 11 is located in the mounting head 1, and the glue outlet 21 is located in the rubber tube 2. The setting of the mounting head 1 facilitates the connection of the caulking head to the caulking machine and enables the caulking head to be installed on a conventional caulking machine through the mounting head 1.

[0042] The mounting head 1 and the rubber tube 2 can be integrally formed by injection molding to form a caulking head, which improves the connection strength between the mounting head 1 and the rubber tube 2. At the same time, the method of obtaining the caulking head is more convenient, and it is easier to form the shape of the flow channel. Of course, in some other cases, the connection method between the mounting head 1 and the rubber tube 2 is not limited, and they can also be connected by other methods, such as welding, etc.

[0043] As an improved method, the cross-section of the glue inlet 11 is circular, making the glue inlet cylindrical, so that after the caulking head is installed on the caulking machine, the glue inlet 11 can be matched with the caulking machine.

[0044] Specifically, the cross-section of the glue outlet 21 is trapezoidal. The cross-section of the flow channel gradually changes from the circular shape of the glue inlet 11 to the trapezoidal shape of the glue outlet 21, that is, the cross-section of the flow channel gradually changes from circular to trapezoidal from the glue inlet 11 to the glue outlet 12, making the colloid flow more smoothly in the flow channel. More specifically, the cross-section of the flow channel gradually changes from the circular shape of the glue inlet 11 to the trapezoidal shape of the glue outlet 21 at the mounting head 1, so that the cross-section of the flow channel in the rubber tube 2 is consistent. Completing the change of the flow channel shape at the mounting head 1 can reduce the influence of the change of the flow channel shape on the glue outlet condition of the glue outlet 12, reduce the glue outlet resistance of the glue outlet 12, lower the pressure in the rubber tube 2, and effectively avoid the bursting of the rubber tube.

[0045] Combined with Figure 2 and Figure 4 As shown, the shape of the glue outlet 12 is generally trapezoidal, such as isosceles trapezoid, right trapezoid or general trapezoid, etc. However, as a preferred embodiment, the shape of the glue outlet 12 is set as an isosceles trapezoid, making the shape of the extruded glue more regular, thus making it easier to control the uniformity of glue application. Of course, in other cases, the glue outlet 12 can also be set to other shapes.

[0046] As Figure 4 shown, the glue outlet 21 has four sides, and the connection between adjacent sides is smoothly transitioned. It can reduce the concentrated stress at the connection of the inner sides of the flow channel, improve the structural strength of the rubber tube 2, and thus extend the service life of the caulking head. Moreover, the glue outlet 21 is generally flat, making the shape of the extruded glue more adaptable to the shape of the glue storage groove of the frame. Compared with the existing cylindrical glue outlet, the shape of the extruded glue is thinner, and the flat glue outlet is easier to control the shape and width of the applied glue.

[0047] As Figure 3 shown, the size of the inclination angle α is 40° - 50°. Specifically, the inclination angle α is set to 45°.

[0048] As Figure 5As shown in the figure, the present utility model further provides a photovoltaic module production system, including a frame 3 and the glue - applying nozzle for the photovoltaic module frame. The frame 3 has a side surface 32 of the frame B and a glue storage groove 31. The frame 3 is inclined, and the angle between the side surface 32 of the frame B of the frame 3 and the plane where the frame 3 is located is an included angle β. When applying glue, the glue - applying nozzle for the photovoltaic module frame is suspended above the glue storage groove 31 of the frame 3. The glue - applying nozzle for the photovoltaic module frame is vertically arranged, and the glue outlet 21 faces the glue storage groove 31, and the magnitude of the included angle β is the same as the magnitude of the inclination angle α.

[0049] In a specific case, both the magnitude of the included angle β and the inclination angle α are set to 45 degrees. On the one hand, the frame is inclined at 45 degrees, which can better fix the frame and increase the stability during frame glue - applying. On the other hand, it makes the glue outlet 21 more matched with the glue storage groove 31, increases the amount of glue in the glue storage groove 31, and makes the lamination fixed more firmly.

[0050] According to Figure 5 the view orientation in Figure 5 as an example, when applying glue, the glue - applying nozzle for the photovoltaic module frame moves perpendicular to Figure 5 the view direction in

[0051] that is, it moves along the extending direction of the frame 3. During the movement, the glue outlet 21 discharges glue to form a glue - applying area 4. The glue discharge amount at different parts of the glue outlet 21 is more uniform, and the glue pattern is stable, making the glue - applying in the glue - applying area 4 uniform and easy to control. It should be noted that

[0052] The above has schematically described the present utility model 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 utility model, 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 creative purpose of the present utility model, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A glue head for applying glue to the frame of a photovoltaic module, comprising a glue injection head. A circulation channel for the glue is provided in the glue injection head. The inlet of the circulation channel is the glue inlet (11), and the outlet is the glue outlet (21). It is characterized in that: One side of the glue injection head close to the glue outlet (21) is inclined to form an inclined side surface. The angle between the inclined side surface and the extending direction of the circulation channel is the inclination angle α. One end of the inclined side surface closer to the glue inlet (11) is the first end (20) of the glue pipe, and the end farther from the glue inlet (11) is the second end (22) of the glue pipe. The width of the glue outlet (21) of the circulation channel gradually decreases from the second end (22) of the glue pipe to the first end (20) of the glue pipe.

2. The glue head for applying glue to the frame of a photovoltaic module according to claim 1, wherein: The glue injection head includes a mounting head (1) and a glue pipe (2). One end of the mounting head (1) is configured to be connected to a glue applicator, and the other end is connected to the glue pipe (2). The circulation channel runs through the mounting head (1) and the glue pipe (2).

3. The glue head for applying glue to the frame of a photovoltaic module according to claim 2, characterized in that: The mounting head (1) and the glue pipe (2) are integrally formed by injection molding to form the glue injection head.

4. The glue head for applying glue to the frame of a photovoltaic module according to claim 2, characterized in that: The cross-section of the glue inlet (11) is circular.

5. The glue head for applying glue to the frame of a photovoltaic module according to claim 4, characterized in that: The cross-section of the glue outlet (21) is trapezoidal; the cross-section of the circulation channel gradually changes from the shape of the circular glue inlet (11) to the shape of the trapezoidal glue outlet (21).

6. The glue head for edge gluing of a photovoltaic module according to claim 5, characterized in that: The cross-section of the circulation channel gradually changes from the shape of the circular glue inlet (11) to the shape of the trapezoidal glue outlet (21) at the mounting head (1).

7. The glue head for gluing the photovoltaic module frame according to claim 5, characterized in that: The glue outlet (21) has four side surfaces, and the connections between adjacent side surfaces are smoothly transitioned.

8. The glue head for applying glue to the frame of a photovoltaic module according to any one of claims 1-7, characterized in that: The size of the inclination angle α is 40° - 50°.

9. The glue head for applying glue to the frame of a photovoltaic module according to claim 8, characterized in that: The inclination angle α is 45°.

10. A photovoltaic module production system, characterized in that: It includes a frame (3) and the glue head for applying glue to the frame of a photovoltaic module according to any one of claims 1 - 9; The frame (3) is inclined. The angle between the side surface B (32) of the frame (3) and the plane where the frame (3) is located is the included angle β; During glue application, the glue head for applying glue to the frame of a photovoltaic module is suspended above the glue storage groove (31) of the frame (3), the glue outlet (21) is arranged facing the glue storage groove (31), and the size of the included angle β is the same as the size of the inclination angle α.

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