CN209881725U

CN209881725U - Solar junction box

Info

Publication number: CN209881725U
Application number: CN201920913133.6U
Authority: CN
Inventors: 岑哲; 张茜; 李张; 郝肖兵; 张振喜
Original assignee: Ningbo Reid Energy Co Ltd
Current assignee: Ningbo Reid Energy Co Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2019-12-31
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a solar junction box, including the terminal box main part, terminal box main part top is provided with the cavity, the cavity bottom is provided with the fixed column, terminal box main part bottom is provided with boss and cable, the cable passes the boss extends in the terminal box main part, terminal box main part back still is provided with backplate bonding block and sealant groove, backplate bonding block is higher than terminal box main part back, the sealant groove set up in the cavity with the backplate bonding block outside, this solar junction box installation is simple and convenient, the sound construction, and sealing performance is good, difficult trouble.

Description

Solar junction box

Technical Field

The utility model relates to a photovoltaic terminal box field, concretely relates to solar junction box.

Background

The solar junction box is a connecting device between a solar cell array formed by solar cell modules and the solar charging control device, and mainly used for connecting and protecting the solar photovoltaic modules, connecting electric power generated by the solar cells with an external circuit and conducting current generated by the photovoltaic modules.

The traditional solar junction box is usually sealed with a solar panel by a sealing ring, is difficult to install and has higher requirements on installation technology, and water inflow caused by insufficient sealing performance possibly exists when the traditional solar junction box is installed too much, so that the normal operation of the junction box is influenced.

Therefore, how to upgrade the existing solar junction box to overcome the above problems is a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple to operate, solar junction box that the leakproofness is good.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the solar junction box comprises a junction box main body, wherein a cavity is formed above the junction box main body, a fixing column is arranged at the bottom of the cavity, a reinforcing block and a cable are arranged at the bottom of the junction box main body, the cable penetrates through the reinforcing block and extends into the junction box main body, a back plate bonding block and a sealing rubber groove are further arranged at the back of the junction box main body, the back plate bonding block is higher than the back of the junction box main body, and the sealing rubber groove is formed in the cavity and the outer side of the back plate bonding block.

As an improvement, the reinforcing block both sides be provided with the anti-overflow groove of gluing that the sealed gluey groove is connected, the reinforcing block with the reinforcing block top be provided with communicate to a plurality of holes of gluing of cable, it is used for beating to glue the hole and glues the bonding fixed the cable.

As an improvement, the surface of the junction box main body outside the sealing rubber groove is an anti-skid rough surface.

Specifically, a bus bar welding strip is arranged on the fixing column, penetrates through the fixing column and is fixed on the fixing column in a bending mode.

As an improvement, a plurality of positioning blocks are arranged on the inner side of the sealing rubber groove.

Compared with the prior art, the utility model has the advantages of: this solar junction box changes the sealing washer on traditional terminal box into the sealant groove, through filling sealed glue then installing toward the sealant groove the inside, realize higher leakproofness, the terminal box surface in the sealant groove outside is anti-skidding rough surface, the installation degree of difficulty has been reduced, this terminal box pastes through the backplate bonding block by the back and is connected, it is easier to install, also be provided with the boss between cable and the terminal box, and be provided with the hole of gluing, glue through toward gluing in the hole, it is more firm to make the cable fixed, and there is the protection of boss, be difficult to the fracture.

Drawings

Fig. 1 is a back structural view of a preferred embodiment according to the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1, a preferred embodiment of the present invention includes a junction box main body 1, a cavity 11 is disposed above the junction box main body 1, a fixing column 111 is disposed at the bottom of the cavity 11, a bus bar welding bar 112 is disposed on the fixing column 111, the bus bar welding bar 112 passes through the fixing column 111 and is fixed on the fixing column 111 by bending, and then is welded, when the junction box is contacted and welded, an electrostatic protection measure is required, the welding time is not too long, otherwise the diode is damaged, a reinforcing block 12 and a cable 13 are disposed at the bottom of the junction box main body 1, the cable 13 passes through the reinforcing block 12 and extends into the junction box main body 1, the reinforcing block 12 can increase the strength of the cable 13 connected with the junction box, and reduce the possibility of the cable 13 breaking, a back plate bonding block 14 and a sealant groove 15 are further disposed at the back of the junction box main body 1, the photovoltaic module is kept in the horizontal position in the terminal box bonding operation process, increases adhesion strength, prevents to drop, and the sealant groove 15 sets up in cavity 11 and the 14 outsides of backplate bonding piece, coats the silica gel of specific specification and model in the sealant groove 15, and silica gel layer thickness 0.6mm is suitable, regards to have right amount glue to ooze all around and regards as, can seal the terminal box inner structure totally after beating to glue, must not remove photovoltaic module and terminal box before the sealant is totally cured.

Reinforcing block 12 both sides are provided with the anti-overflow groove 121 of gluing with sealed gluey groove 15 is connected, prevent that the silica gel in the sealed gluey groove 15 from excessively spilling over, and reinforcing block 12 top are provided with a plurality of holes 122 of gluing that communicate to cable 13, beat the hole 122 of gluing and are used for beating to glue fixed cable 13, increase the intensity of the fixed cable 13 of reinforcing block 12, prevent that cable 13 from being broken.

The surface of the junction box main body 1 outside the sealing rubber groove 15 is an anti-slip rough surface 16 used for increasing friction force and reducing possible slip of the junction box main body 1 in the silica gel curing process.

The inner side of the sealing rubber groove 15 is provided with a plurality of positioning blocks 17, so that the positioning and the installation are convenient.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A solar junction box, characterized in that: the junction box comprises a junction box main body, a cavity is arranged above the junction box main body, a fixing column is arranged at the bottom of the cavity, a reinforcing block and a cable are arranged at the bottom of the junction box main body, the cable penetrates through the reinforcing block and extends into the junction box main body, a back plate bonding block and a sealing rubber groove are further arranged at the back of the junction box main body, the back plate bonding block is higher than the back of the junction box main body, and the sealing rubber groove is formed in the cavity and the outer side of the back plate bonding block.

2. A solar junction box according to claim 1, wherein: the reinforcing block both sides be provided with the anti-overflow groove of gluing that the sealed gluey groove is connected, the reinforcing block with the reinforcing block top be provided with communicate to a plurality of holes of gluing of cable, it is used for beating to glue the hole and glues the bonding fixed the cable.

3. A solar junction box according to claim 1, wherein: the surface of the junction box main body outside the sealing rubber groove is an anti-skidding rough surface.

4. A solar junction box according to claim 1, wherein: and a bus bar welding strip is arranged on the fixed column, penetrates through the fixed column and is fixed on the fixed column in a bending manner.

5. A solar junction box according to claim 1, wherein: and a plurality of positioning blocks are arranged on the inner side of the sealing rubber groove.