Coating system for preventing black leakage of middle hole of photovoltaic module

Abstract

The utility model discloses a coating system for preventing black leakage of a middle hole of a photovoltaic module, and aims to solve the problem that black is not allowed to be seen from the front side after a wire box at the position of the middle hole of an outgoing line of the module is installed and has a clear requirement along with further improvement of requirements of customers on the appearance of the module. The system is mainly composed of a central control system, a glue barrel A, a glue barrel B, a glue pipe, a mixing stirrer, a mixing rack pipe and the like, after the system is started, the central control system plays a core control role, the glue barrel A and the glue barrel B are accurately controlled through a circuit and are promoted to stably supply glue to the mixing stirrer through the glue pipe, and two different kinds of glue are fully mixed in the mixing stirrer; then, the mixed colloid is accurately and uniformly coated at the lead-out hole in the back surface of the photovoltaic module through the mixing calandria at the bottom of the mixing stirrer, so that the lead-out hole is effectively sealed, and the black leakage phenomenon of the lead-out hole is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the related technical field of photovoltaic module production, and particularly relates to a photovoltaic module anti-black-leakage coating system for middle holes. BACKGROUND

[0002] With the vigorous development of the solar photovoltaic industry, the demand for photovoltaic modules is increasing, and the control of the appearance standards of photovoltaic modules is more stringent in the industry. In order to meet customer demand, each manufacturer is pursuing quality and striving to make their products optimal, ensuring the shipment volume and maximizing the company's profit. A junction box needs to be used in the production process of photovoltaic modules. As a connecting device, the photovoltaic junction box serves as a bridge connecting the solar module and the control device such as an inverter. The current generated by the solar module is led out and introduced into the electrical equipment through the terminal and connector inside the photovoltaic junction box. Therefore, the back glass of the module needs to be opened to a circular hole to lead out the busbar and connect with the junction box. After installation, the junction box back is black, and the middle hole position appears as a black box body from the front of the module. With the further improvement of customer requirements for the appearance of the module, the junction box installed at the middle hole position is not allowed to appear black from the front, and there are clear requirements. At present, many companies take measures to manually smear silicone at the middle hole position or smear silicone at the corresponding position of the junction box.

[0003] However, the customer has higher requirements for the black leakage at the middle hole position after the installation of the junction box in the current photovoltaic module production process. In particular, due to the limitation of various types of junction boxes, the AB glue filling effect is different due to the difference in internal structure, which affects the appearance effect of the front lead-out hole position. If the AB glue is more likely to infiltrate, the middle hole position is filled with AB glue, and there is no black leakage phenomenon. If the AB glue cannot infiltrate or infiltrates slowly, the middle hole position cannot be completely filled with AB glue. When the middle hole position is viewed from the front, the black leakage phenomenon occurs. The current measure is to smear silicone at the bottom of the junction box corresponding to the black leakage position before the installation of the junction box. However, the lead-out line position is easy to stick to silicone after the installation of the junction box, which leads to the virtual welding of the junction box or poor welding effect, and causes complaints later. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a photovoltaic module anti-black-leakage coating system to solve the problem of the different AB glue filling effects after the AB glue filling, which affects the appearance effect of the front lead-out hole position. If the AB glue is more likely to infiltrate, the middle hole position is filled with AB glue, and there is no black leakage phenomenon. If the AB glue cannot infiltrate or infiltrates slowly, the middle hole position cannot be completely filled with AB glue. When the middle hole position is viewed from the front, the black leakage phenomenon occurs. The current measure is to smear silicone at the bottom of the junction box corresponding to the black leakage position before the installation of the junction box. However, the lead-out line position is easy to stick to silicone after the installation of the junction box, which leads to the virtual welding of the junction box or poor welding effect, and causes complaints later.

[0005] To achieve the above object, the utility model provides the following technical scheme: a photovoltaic module prevents middle hole leak black coating system, including photovoltaic module and central control system,

[0006] The back of the photovoltaic module is provided with a lead-out hole, a busbar lead-out wire is arranged at the inner position of the lead-out hole, and a junction box is arranged at the outer position of the lead-out hole.

[0007] The central control system is connected with an A glue barrel and a B glue barrel through a line, and the A glue barrel and the B glue barrel are connected with a mixing stirrer.

[0008] Preferably, the A glue barrel and the B glue barrel are connected with the mixing stirrer through a rubber tube.

[0009] Preferably, the mixing stirrer is connected with a mixing discharge pipe arranged at the bottom position in an array, and the mixing discharge pipe corresponds to the lead-out hole.

[0010] Preferably, the mixing stirrer is controlled by the central control system.

[0011] Preferably, the A glue barrel and the B glue barrel are mixed into white glue.

[0012] Preferably, the lead-out hole is an elliptical structure.

[0013] Compared with the prior art, the utility model provides a photovoltaic module prevents middle hole leak black coating system, which has the following beneficial effects:

[0014] Through the setting of the central control system, the A glue barrel, the B glue barrel, the mixing stirrer and the mixing discharge pipe, the accurate control of the central control system, the connection of the A glue barrel and the B glue barrel through a line, the accurate control of the glue supply process can be realized, the proportion of the two kinds of glue is accurate, the sealing effect is improved, the double glue barrel design, the A glue barrel and the B glue barrel store different glue respectively, and the mixing stirrer is connected through a rubber tube, the types and proportion of the glue can be flexibly adjusted according to the needs, different sealing requirements can be adapted, the two kinds of glue are fully mixed in the mixing stirrer, the performance of the mixed glue is stable, the sealing quality is improved, the mixing discharge pipe is arranged at the bottom position of the mixing stirrer in an array, the mixed glue can be uniformly coated on the lead-out hole, the comprehensiveness and reliability of the sealing are ensured, the mixing discharge pipe corresponds to the lead-out hole, the lead-out hole can be directly sealed, the waste of the glue is avoided, and the sealing effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model.

[0016] Figure 2 It is a structural schematic view of the back of the photovoltaic module in the utility model.

[0017] Figure 3 It is the structure schematic view of the back terminal box of the photovoltaic module in the utility model.

[0018] Figure 4 It is the structure schematic view of the black leakage of the lead-out hole in the utility model.

[0019] Figure 5 It is the flow chart of AB glue filling in the utility model.

[0020] In the drawing: 1, central control system; 2, line; 3, A glue barrel; 4, B glue barrel; 5, glue pipe; 6, mixing stirrer; 7, mixed discharge pipe; 8, photovoltaic module; 9, lead-out hole; 10, busbar lead-out wire; 11, terminal box. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the utility model.

[0022] The utility model provides a kind of photovoltaic module prevents middle hole black leakage coating system as shown in Figures 1-5 It includes photovoltaic module 8 and central control system 1.

[0023] The back position of photovoltaic module 8 is provided with lead-out hole 9, and busbar lead-out wire 10 is arranged at the inner position of lead-out hole 9. Terminal box 11 is arranged at the outer position of lead-out hole 9.

[0024] Central control system 1 is connected with A glue barrel 3 and B glue barrel 4 through line 2. A glue barrel 3 and B glue barrel 4 are connected with mixing stirrer 6.

[0025] A glue barrel 3 and B glue barrel 4 are connected with mixing stirrer 6 through glue pipe 5.

[0026] The bottom position of mixing stirrer 6 is connected with arrayed mixed discharge pipe 7, and mixed discharge pipe 7 corresponds to lead-out hole 9.

[0027] Mixing stirrer 6 controls glue feeding through central control system 1.

[0028] The mixed glue in A glue barrel 3 and B glue barrel 4 is white.

[0029] Lead-out hole 9 is elliptical structure.

[0030] In this embodiment, the specific implementation steps of a photovoltaic module anti-hole leakage black coating system are as follows: first, laminating, then tearing the edge tape, removing unnecessary tape, then edge trimming to make the edge flat, then picking out the wire, processing the internal wiring, then welding the wire box, then installing the wire box, placing the lead-out hole 9 on the back of the photovoltaic module 8 corresponding to the mixed manifold 7, starting the system, and the central control system 1 starts to work. The central control system 1 controls the A glue barrel 3 and the B glue barrel 4 through the line 2, so that the two barrels supply glue to the mixed stirrer 6 through the glue pipe 5. The two kinds of glue in the A glue barrel 3 and the B glue barrel 4 are fully mixed in the mixed stirrer 6. The mixed glue is white. The mixed glue is evenly coated on the lead-out hole 9 through the mixed manifold 7 at the bottom of the mixed stirrer 6. The glue seals the lead-out hole 9, effectively preventing the lead-out hole 9 from leaking black. Then assemble the frame, fill or protect the internal structure, and make the glue solidify to ensure the stability of the structure.

[0031] As shown in Figure 1 and Figure 5 , the central control system 1 is connected with the A glue barrel 3 and the B glue barrel 4 through the line 2. The A glue barrel 3 and the B glue barrel 4 are connected with the mixed stirrer 6. The A glue barrel 3 and the B glue barrel 4 are connected with the mixed stirrer 6 through the glue pipe 5. The mixed stirrer 6 is connected with the mixed manifold 7 arranged at the bottom position. The mixed manifold 7 corresponds to the lead-out hole 9.

[0032] Preferably, the central control system 1 precisely controls the A glue barrel 3 and the B glue barrel 4 connected through the line 2, which can realize precise control of the glue supply process, ensure the accurate proportion of the two kinds of glue, improve the sealing effect, and the double glue barrel design can store different glue in the A glue barrel 3 and the B glue barrel 4 respectively. Through the connection with the mixed stirrer 6 through the glue pipe 5, the types and proportions of glue can be flexibly adjusted according to needs to adapt to different sealing requirements. The two kinds of glue are fully mixed in the mixed stirrer 6 to ensure the stability of the mixed glue performance and improve the sealing quality. The mixed manifold 7 arranged at the bottom position of the mixed stirrer 6 can evenly coat the mixed glue on the lead-out hole 9 to ensure the comprehensiveness and reliability of the sealing. The mixed manifold 7 corresponds to the lead-out hole 9, which can directly seal the lead-out hole to avoid waste of glue and improve the sealing efficiency.

[0033] As shown in Figures 1-5 , the mixed stirrer 6 controls the glue through the central control system 1. The mixed glue in the A glue barrel 3 and the B glue barrel 4 is white after mixing. The lead-out hole 9 is an elliptical structure.

[0034] Preferably, the glue feeding of the mixing blender 6 is controlled by the central control system 1, which can ensure the accuracy and stability of the glue feeding amount, avoid affecting the sealing effect due to excessive or insufficient glue feeding, and at the same time, can flexibly adjust the glue feeding speed and time according to the actual situation, improve the production efficiency, the mixed glue in the A glue barrel 3 and the B glue barrel 4 is white, on the one hand, the distribution of the glue can be clearly observed, which is convenient for checking the sealing effect, on the other hand, the white glue is obviously contrasted with the color of the photovoltaic module, which is easier to find problems in the installation and maintenance process, and timely treatment, the lead-out hole 9 is an elliptical structure, compared with the common circular lead-out hole, the elliptical lead-out hole can better adapt to the stress in different directions when sealing, improve the reliability of sealing, at the same time, the area of the elliptical lead-out hole is relatively large, which can better accommodate the glue discharged by the mixed discharge pipe 7, and ensure the comprehensiveness of the sealing.

[0035] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A photovoltaic module prevents the middle hole leakage black coating system, comprising photovoltaic module (8) and central control system (1); The back of the photovoltaic module (8) is provided with a lead-out hole (9), and the inside of the lead-out hole (9) is provided with a busbar lead-out wire (10). The outside of the lead-out hole (9) is provided with a junction box (11); characterized in that The central control system (1) is connected with A glue barrel (3) and B glue barrel (4) through line (2), and the A glue barrel (3) and B glue barrel (4) are connected with mixing blender (6).

2. A system for preventing black dye leakage through the middle hole of a photovoltaic module, according to claim 1, characterized in that: The A glue barrel (3) and B glue barrel (4) are connected with mixing blender (6) through glue pipe (5).

3. A system for preventing black dye leakage through the middle hole of a photovoltaic module, according to claim 1, wherein: The mixing blender (6) is connected with mixing exhaust pipe (7) arranged in array at the bottom position, and the mixing exhaust pipe (7) corresponds to the lead-out hole (9).

4. A system for preventing black dye leakage through the middle hole of a photovoltaic module, according to claim 1, characterized in that: The mixing blender (6) controls the glue feeding through the central control system (1).

5. A system for preventing black dye leakage through the middle hole of a photovoltaic module, according to claim 1, wherein: The glue inside the A glue barrel (3) and B glue barrel (4) is white after mixing.

6. A system for preventing black dye leakage through the middle hole of a photovoltaic module, according to claim 1, wherein: The lead-out hole (9) is an elliptical structure.

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