CN212115264U

CN212115264U - MWT subassembly terminal box

Info

Publication number: CN212115264U
Application number: CN202020689028.1U
Authority: CN
Inventors: 董昊; 渠立亮; 孙明亮; 吴仕梁; 张凤鸣
Original assignee: Jiangsu Sunport Power Corp Ltd
Current assignee: Jiangsu Sunport Power Corp Ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-12-08
Anticipated expiration: 2030-04-29

Abstract

The utility model discloses an MWT component junction box, which comprises a bottom plate and a box body buckled with the bottom plate, wherein an electric connection component and a power management module are arranged in the box body, and a wiring notch is formed in the box body; the box body is provided with a groove, the bottom plate is a half-covered bottom plate, the upper part of the bottom plate is hollow, the half box body is covered, and the hollow part is used for the positive and negative cables to pass through; the electric connection assembly comprises a left conductive copper sheet, a first middle conductive copper sheet, a second middle conductive copper sheet and a right conductive copper sheet which are sequentially arranged, and the conductive copper sheets are directly connected through a one-way conduction original piece. The utility model discloses a novel terminal box, use more portably, improved the efficiency of work, can greatly save manufacturing cost and human cost and bring huge economic benefits for the enterprise, have extensive use prospect.

Description

MWT subassembly terminal box

Technical Field

The utility model belongs to the technical field of solar module inspects, concretely relates to novel terminal box of subassembly behind MWT lamination.

Background

MWT (Metal Wrap Through, Metal Wrap Through technology) for use in solar cells. The main grid lines of the front electrode are eliminated through the laser drilling and back wiring technology, the front electrode of the battery is led to the back side in a penetrating mode, and therefore positive and negative electrode points of the battery are distributed on the back side of the battery piece, shading of the front grid lines is effectively reduced, and conversion efficiency is improved.

The junction box is one of key materials of the MWT photovoltaic assembly, and the MWT photovoltaic assembly is formed by solidifying and bonding toughened glass, a battery pack, a GPS (global positioning system), a conductive core board and a back board through EVA (ethylene vinyl acetate) at a certain temperature and under a certain pressure, welding the junction box and assembling a frame. If the welding of the back plate and the outgoing line is omitted in the installation process of the MWT component junction box, the working beat can be greatly shortened, the productivity is improved, and meanwhile, the material cost and the manual welding cost of the outgoing line are saved.

There is therefore a need for a new type of junction box that satisfies the use of MWT assemblies.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough of above-mentioned prior art, the utility model aims to provide a novel terminal box to the use cost and the manual welding cost of lead-out wire among the solution prior art, save the station simultaneously, shorten operating time and improve the productivity.

The utility model discloses a MWT component junction box, which comprises a bottom plate and a box body buckled with the bottom plate, wherein an electric connection component and a power management module are arranged in the box body, and a wiring notch is formed in the box body;

the box body is provided with a groove, the bottom plate is a half-covered bottom plate, the upper part of the bottom plate is hollow, the half box body is covered, and the hollow part is used for the positive and negative cables to pass through;

the electric connection assembly comprises a left conductive copper sheet, a first middle conductive copper sheet, a second middle conductive copper sheet and a right conductive copper sheet which are sequentially arranged, and the conductive copper sheets are directly connected through a one-way conduction original piece.

Furthermore, a card-inserting type cover plate is arranged on the wiring slot opening.

Furthermore, the one-way conduction element is a diode.

Further, four conductive copper connections are made to the solder areas of the MWT assembly mount.

The utility model discloses the beneficial effect that the technical scheme of implementation brought includes at least:

the utility model discloses a novel terminal box adopts the mode that electrically conductive copper sheet and diode link to each other, has replaced the structure of drawing forth the wire, directly welds copper sheet and subassembly welding area mutually, connects more stably, and has saved the welded technology on the terminal box at the wire in the course of working. The novel hydraulic oil cylinder is simpler and more convenient to use, improves the working efficiency, can greatly save the production cost and the labor cost, brings huge economic benefits to enterprises, and has wide application prospect.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the use of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive work.

Fig. 1 is a front cross-sectional view of a MWT assembly junction box of the present invention;

fig. 2 is a schematic back structure view of an MWT assembly junction box of the present invention;

reference number designations in the drawings: the device comprises a groove 1, a bottom plate 2, a conductive copper sheet 3, a one-way conduction element 4, a card-inserted cover plate 5 and a box body 6.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the MWT assembly junction box provided by the present invention comprises a bottom plate 2 and a box body 6 fastened with the bottom plate 2, wherein an electrical connection assembly and a power management module are disposed in the box body 6, and a wiring notch is disposed on the box body 6; the box body 6 is provided with a groove 1, the bottom plate 2 is a half-covered bottom plate 2, the upper part of the bottom plate is hollowed out, the half box body 6 is covered, and the hollowed-out part is used for a positive cable and a negative cable to pass through; the electric connection component comprises a left conductive copper sheet, a first middle conductive copper sheet, a second middle conductive copper sheet and a right conductive copper sheet which are sequentially arranged, and the conductive copper sheets are directly connected through a one-way conduction original piece 4.

Furthermore, a card-inserting type cover plate 5 is arranged on the wiring slot; the unidirectional conducting element 4 is a diode.

During processing, the outgoing line of the novel junction box is welded with the copper foil at the opening of the back plate by using the handle type ferroelectrics; and (4) performing self-checking to determine whether the welding part has a cold joint or not, and finishing the installation of the junction box.

The current installation mode of the junction box is as follows: 1. the outgoing line is welded with the back plate; 2. mounting a junction box; 3. and the lead wire is welded with the junction box. This novel terminal box the utility model discloses a novel terminal box adopts the mode that electrically conductive copper sheet and diode link to each other, has replaced the structure of drawing forth the wire, directly welds copper sheet and subassembly welding area mutually, connects more stably, can save 3 rd step process lead-out wire and terminal box welding to reach and save material and cost of labor.

The utility model discloses a novel terminal box of MWT subassembly its use installation procedure specifically as follows:

enabling the laminated assembly to flow out to a junction box mounting station along a production line, enabling the back plate side to face upwards and be arranged in a position; gluing the junction box according to the existing gluing mode (a Chinese character 'ri' shape) to prepare before installation; installing the junction box which is well glued in a specified area by using a tool; welding the outgoing line of the novel junction box with the welding position of the opening of the back plate by using the handle type ferroelectrics; and (4) performing self-checking to determine whether the welding part has a cold joint or not, and finishing the installation of the junction box. It is passed along the flow line to the next process.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The MWT component junction box is characterized by comprising a bottom plate and a box body buckled with the bottom plate, wherein an electric connection component and a power management module are arranged in the box body, and a junction slot opening is formed in the box body;

2. The MWT assembly junction box of claim 1, wherein the junction box opening is provided with a card-receiving cover plate.

3. The MWT assembly junction box according to claim 1 or 2, wherein the unidirectional conducting element is a diode.

4. A MWT assembly junction box according to claim 3, characterized in that four conductive coppers are connected to the soldering areas where the MWT assembly is mounted.