CN214177261U

CN214177261U - Mounting and connecting structure of solar junction box

Info

Publication number: CN214177261U
Application number: CN202023212404.7U
Authority: CN
Inventors: 陈泽鹏
Original assignee: Jiangsu Zerun New Material Co ltd
Current assignee: Jiangsu Zerun Xinneng Technology Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-09-10
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses an installation and connection structure of a solar junction box, which comprises a solar component, a box body and a module diode; the solar component is provided with two bus bars; the box body is arranged on the solar component and is provided with an accommodating cavity with an upward opening, and the accommodating cavity penetrates through the bottom of the box body; the module diode is arranged in the accommodating cavity and provided with two electrodes, each electrode is provided with a flat disc, the two flat discs are abutted against the surfaces of the corresponding bus bars, and the flat discs and the bus bars are fixedly connected and conducted in an electric resistance welding mode or a tin soldering iron melting mode. Through being provided with the flat dish on the electrode, the cooperation supports the flat dish on the busbar surface to connect fixedly and switch on through resistance welding's mode or the mode of tin sticky flatiron melting, effectively promote the steadiness of solar junction box erection joint, the reliability is higher, and the installation is also more simple and convenient.

Description

Mounting and connecting structure of solar junction box

Technical Field

The utility model relates to a solar junction box field technique especially indicates a solar junction box's erection joint structure.

Background

The solar junction box is a connector between a solar cell array formed by solar cell modules and a solar charging control device, and is a cross-field comprehensive design combining electrical design, mechanical design and material science. The solar junction box is very important in the composition of a solar module, and mainly plays a role in connecting electric power generated by a solar cell with an external circuit.

The solar junction box is usually installed by adhering silica gel to a back plate of the solar assembly, then leading-out wires in the solar assembly are connected together through an internal circuit in the solar junction box, the internal circuit is connected with an external cable, so that the solar assembly is conducted with the external cable, and a module diode is arranged in the solar junction box to ensure that the assembly can normally work when being blocked by light. The mounting and connecting mode of the solar junction box has the problems of insufficient connection stability and low reliability, and is troublesome to mount. Therefore, there is a need to develop a solution to the above problems.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a solar junction box mounting and connecting structure, which can effectively solve the problems of insufficient connection stability and low reliability of the existing solar junction box mounting and connecting method.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a mounting and connecting structure of a solar junction box comprises a solar component, a box body and a module diode; the solar component is provided with two bus bars; the box body is arranged on the solar component and is provided with an accommodating cavity with an upward opening, and the accommodating cavity penetrates through the bottom of the box body; the module diode is arranged in the accommodating cavity and provided with two electrodes, each electrode is provided with a flat disc, the two flat discs are abutted against the surfaces of the corresponding bus bars, and the flat discs and the bus bars are fixedly connected and conducted in an electric resistance welding mode or a tin soldering iron melting mode.

Preferably, the electrode comprises a main body, the main body is bent downwards to extend a connecting part, and the flat disc is horizontally bent at the lower end of the connecting part to extend.

Preferably, the connecting portion is an arc-shaped bent elastic structure.

Preferably, the flat discs of the two electrodes are arranged symmetrically, and each flat disc is semicircular.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:

through being provided with the flat dish on the electrode, the cooperation supports the flat dish on the busbar surface to connect fixedly and switch on through resistance welding's mode or the mode of tin sticky flatiron melting, effectively promote the steadiness of solar junction box erection joint, the reliability is higher, and the installation is also more simple and convenient.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is an assembled perspective view of a preferred embodiment of the present invention;

FIG. 2 is an exploded view of the preferred embodiment of the present invention;

fig. 3 is an exploded view from another angle of the preferred embodiment of the present invention;

FIG. 4 is an enlarged schematic view of a modular diode according to a preferred embodiment of the present invention;

fig. 5 is an enlarged view of another angle of the module diode according to the preferred embodiment of the present invention.

FIG. 6 is a perspective view of a first connection in a preferred embodiment of the present invention;

FIG. 7 is a cross-sectional view of a first connection in a preferred embodiment of the invention;

FIG. 8 is a perspective view of a second connection in a preferred embodiment of the present invention;

fig. 9 is a cross-sectional view of a second connection in a preferred embodiment of the invention.

The attached drawings indicate the following:

10. solar module 11 and bus bar

20. Box body 21 and accommodating cavity

22. Hook part 23, concave position

30. Module diode 31, electrode

311. Flat plate 312, main body

313. Connecting part 40 and cushion block

41. Wire groove 50, wire rod

60. Soldering iron 70, soldering tip

80. A cover body.

Detailed Description

Referring to fig. 1 to 9, a specific structure of a preferred embodiment of the present invention is shown, which includes a solar module 10, a box 20 and a module diode 30.

The solar module 10 has two bus bars 11, and the two bus bars 11 are respectively a positive electrode and a negative electrode.

The box body 20 is arranged on the solar module 10, the box body 20 is provided with an accommodating cavity 21 with an upward opening, the opening above the accommodating cavity 21 is sealed by a cover body 80, and the accommodating cavity 21 penetrates through the bottom of the box body 20; in this embodiment, the box body 20 is made of an integral injection molding material, the inner wall of the accommodating cavity 21 is integrally formed with a plurality of hooks 22, the bottom of the box body 20 is concavely provided with a concave 23, a cushion block 40 is embedded in the concave 23, a wire slot 41 is formed between the cushion block 40 and the box body 20, and a wire 50 passes through the wire slot 41 and extends into the accommodating cavity 21.

The module diode 30 is disposed in the accommodating cavity 21, the module diode 30 has two electrodes 31, each electrode 31 has a flat plate 311, the two flat plates 311 abut against the surface of the corresponding bus bar 11, and the flat plates 311 and the bus bar 11 are connected, fixed and conducted by a resistance welding method or a melting method with a soldering iron. In the present embodiment, the plurality of hooks 22 hook the periphery of the module diode 30, so that the module diode 30 is firmly clamped in the accommodating cavity 21, and the wire 50 is riveted, fixed and conducted with the electrode 31; specifically, the electrode 31 includes a main body 312, the main body 312 is bent downward to form a connecting portion 313, the flat discs 311 are bent horizontally at the lower end of the connecting portion 313 to form a connecting portion, the flat discs 311 of the two electrodes 31 are symmetrically arranged, and each flat disc 311 is semicircular; and, the connection portion 313 is an arc-shaped bent elastic structure, so that the flat discs 311 on both sides of the module diode 30 can be adaptively adjusted up and down, the two flat discs 311 are in close contact with the surfaces of the corresponding bus bars 11, and the connection effect after welding is improved.

Detailed description the installation process of this embodiment is as follows:

firstly, the module diode 30 is clamped in the accommodating cavity 21 from top to bottom, then, the box body 20 is abutted against the surface of the solar module 10, and the two flat discs 311 are abutted against the surfaces of the corresponding bus bars 11, and the connection modes of the flat discs 311 and the bus bars 11 are two: as shown in fig. 6 and 7, a first connection method is to add tin to the two flat plates 311 and then melt the tin with a soldering iron 60 so that the two flat plates 311 are connected to the corresponding bus bars 11; as shown in fig. 8 and 9, the second connection method is a resistance welding method, in which two welding heads 70 of a welding machine are respectively pressed against the bus bar 11 and the flat plate 311, and the flat plate 311 and the bus bar 11 are welded together by electric discharge butt welding.

The utility model discloses a design focus lies in: through being provided with the flat dish on the electrode, the cooperation supports the flat dish on the busbar surface to connect fixedly and switch on through resistance welding's mode or the mode of tin sticky flatiron melting, effectively promote the steadiness of solar junction box erection joint, the reliability is higher, and the installation is also more simple and convenient.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a mounting connection structure of solar junction box which characterized in that: the solar module comprises a solar module, a box body and a module diode; the solar component is provided with two bus bars; the box body is arranged on the solar component and is provided with an accommodating cavity with an upward opening, and the accommodating cavity penetrates through the bottom of the box body; the module diode is arranged in the accommodating cavity and provided with two electrodes, each electrode is provided with a flat disc, the two flat discs are abutted against the surfaces of the corresponding bus bars, and the flat discs and the bus bars are fixedly connected and conducted in an electric resistance welding mode or a tin soldering iron melting mode.

2. The mounting and connecting structure of a solar junction box according to claim 1, wherein: the electrode comprises a main body, a connecting part is bent downwards and extends out of the main body, and the flat disc is horizontally bent and extends out of the lower end of the connecting part.

3. The mounting and connecting structure of a solar junction box according to claim 2, wherein: the connecting part is of an arc-shaped bent elastic structure.

4. The mounting and connecting structure of a solar junction box according to claim 1, wherein: the flat discs of the two electrodes are symmetrically arranged, and each flat disc is semicircular.