CN213461002U

CN213461002U - Three-part junction box cable fixing structure

Info

Publication number: CN213461002U
Application number: CN202022252169.XU
Authority: CN
Inventors: 王安林
Original assignee: Wuxi Suntech Power Co Ltd
Current assignee: Wuxi Suntech Power Co Ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-06-15
Anticipated expiration: 2030-10-10

Abstract

The utility model relates to a three-part junction box cable fixing structure, which comprises a photovoltaic panel, wherein a negative junction box, an intermediate junction box, a positive junction box and a solar cell module are arranged on the photovoltaic panel; the negative terminal box is connected with the solar cell module bus bar through a negative terminal box inner conductor, the positive terminal box is connected with the solar cell module bus bar through a positive terminal box inner conductor, one side of the negative terminal box is connected with a negative connector, the other side of the negative terminal box is connected with one side of the positive terminal box through a photovoltaic cable, and the other side of the positive terminal box is connected with a positive connector; and a negative photovoltaic cable storage plate is arranged on the negative terminal box. The utility model has simple structure and small occupied space; the wire fixing structure of the bayonet of the three-split junction box has the function of fixing the cable, and the cable is conveniently and quickly installed and fixed; the wire fixing structure is provided with a plurality of wire clamping ports, and the wire clamping ports have different diameters so as to meet the fixing requirements of cables with different diameters.

Description

Three-part junction box cable fixing structure

Technical Field

The utility model belongs to the technical field of the solar PV modules terminal box, a components of a whole that can function independently terminal box cable fixed knot constructs is related to.

Background

At present, the main stream assembly plate types in the market are half-plate assemblies, and all three-part junction boxes (composed of three parts, namely a positive junction box, a negative junction box and an intermediate junction box) are adopted, so that although the connection on the assembly circuit plays a key role, the following problems still exist in the fixing and dismounting of the junction box cable.

The difficulty of binding is high, and manual binding or other adhesive tape pasting modes are needed for fixing; the cable is not beautiful after being bundled (the sizes of the coils are not uniform, the cable is messy and the like); the full automation of the production of the junction box can not be realized.

The system end needs to be manually cut off the cable tie or fix the adhesive tape, so that the insulating layer of the cable or the assembly back plate is easily damaged, and the potential safety hazard of electric leakage occurs.

Disclosure of Invention

An object of the utility model is to provide a components of a whole that can function independently terminal box cable fixed knot constructs, it is big to solve the wire binding degree of difficulty, needs artifical wire binding or other fixed scheduling problems of pasting the sticky tape mode.

According to the utility model provides a technical scheme: a three-split junction box cable fixing structure comprises a photovoltaic panel, wherein a negative junction box, an intermediate junction box, a positive junction box and a solar cell module are mounted on the photovoltaic panel; the negative terminal box is connected with the solar cell module bus bar through a negative terminal box inner conductor, the positive terminal box is connected with the solar cell module bus bar through a positive terminal box inner conductor, one side of the negative terminal box is connected with a negative connector, the other side of the negative terminal box is connected with one side of the positive terminal box through a photovoltaic cable, and the other side of the positive terminal box is connected with a positive connector; the negative terminal box is provided with a negative photovoltaic cable storage plate, and the positive terminal box is provided with a positive photovoltaic cable storage plate.

As a further improvement, the negative photovoltaic cable storage plate and the positive photovoltaic cable storage plate are made of elastic material.

As a further improvement, the negative electrode photovoltaic cable storage plate and the positive electrode photovoltaic cable storage plate are opened with the groove of accomodating, accomodate groove upper portion for accomodating the notch, the lower part is for accomodating the chamber.

As a further improvement of the utility model, the negative pole photovoltaic cable storage plate with anodal photovoltaic cable storage plate is relative setting.

As a further improvement of the utility model, negative pole connector middle part is equipped with the electrically conductive spliced pole of negative pole, the electrically conductive spliced pole periphery of negative pole is opened there is the connection chamber, it has the bayonet socket to connect the chamber periphery to open.

As a further improvement, the positive connector middle part is equipped with anodal electrically conductive spliced pole, it has the anodal connecting hole to open in the anodal electrically conductive spliced pole, anodal electrically conductive spliced pole periphery is equipped with connects the elastic claw, be equipped with the barb on connecting the elastic claw.

As a further improvement, the storage notch is slightly smaller than the storage cavity.

The positive progress effect of this application lies in:

1. the utility model has simple structure and small occupied space; the wire fixing structure of the bayonet of the three-split junction box has the function of fixing the cable, and the cable is convenient and quick to install and fix.

2. The utility model discloses solidus structure has a plurality of card line mouths, and the card line mouth has different diameter sizes to satisfy the fixed demand of different diameter cables.

3. The utility model discloses solidus structure still has the box body effect that makes things convenient for the staff to conveniently take at terminal box production end and unit mount terminal box production end.

4. The utility model discloses need not to cut the ribbon at system installation end workman, the cable pull out from the bayonet socket can, it is very convenient.

5. The utility model has the characteristics of the line speed is fast admittedly, and is pleasing to the eye, can standardize etc.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural diagram of the negative connector of the present invention.

Fig. 4 is a schematic structural diagram of the positive connector of the present invention.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings.

Fig. 1 to 4 include a photovoltaic panel 1, a negative terminal box 2, an intermediate terminal box 3, a positive terminal box 4, and the like.

As shown in fig. 1, the utility model relates to a three-part terminal box cable fixed knot constructs, including photovoltaic board 1, install negative terminal box 2, middle terminal box 3, anodal terminal box 4 and solar module on the photovoltaic board. The negative terminal box 2 is connected with the solar cell assembly bus bar through a negative terminal box inner conductor, the positive terminal box 4 is connected with the solar cell assembly bus bar through a positive terminal box inner conductor, one side of the negative terminal box 2 is connected with the negative connector 2-2, the other side of the negative terminal box 2 is connected with one side of the positive terminal box 4 through a photovoltaic cable (not shown in the figure), and the other side of the positive terminal box 4 is connected with the positive connector 4-2. The negative terminal box 2 is provided with a negative photovoltaic cable storage plate 2-1, and the positive terminal box 4 is provided with a positive photovoltaic cable storage plate 4-1.

The negative photovoltaic cable storage plate 2-1 and the positive photovoltaic cable storage plate 4-1 are made of elastic materials and can deform to a certain degree.

The negative photovoltaic cable storage plate 2-1 and the positive photovoltaic cable storage plate 4-1 are provided with storage grooves of various sizes, so that photovoltaic cables of different sizes are convenient to use, the upper parts of the storage grooves are storage notches, the lower parts of the storage grooves are storage cavities, and the storage notches are slightly smaller than the storage cavities.

The negative photovoltaic cable storage plate 2-1 and the positive photovoltaic cable storage plate 4-1 are arranged oppositely, so that the photovoltaic cables can be placed conveniently.

As shown in figure 3, the middle part of the negative connector 2-2 is provided with a negative conductive connection column 2-2-1, the periphery of the negative conductive connection column 2-2-1 is provided with a connection cavity 2-2-2, and the periphery of the connection cavity 2-2-2 is provided with a bayonet 2-2-3.

As shown in FIG. 4, a positive conductive connection column 4-2-1 is arranged in the middle of the positive connector 4-2, a positive connection hole 4-2-2 is formed in the positive conductive connection column 4-2-1, a connection elastic claw 4-2-3 is arranged on the periphery of the positive conductive connection column 4-2-1, and a barb 4-2-4 is arranged on the connection elastic claw 4-2-3.

The working process of the utility model is as follows:

as shown in fig. 2, the negative connector 2-2 on the middle photovoltaic panel is connected to the positive connector 4-2 on the one photovoltaic panel. The positive conductive connecting column 4-2-1 extends into the connecting cavity 2-2-2, the negative conductive connecting column 2-2-1 is in contact with the positive connecting hole 4-2-2, the connecting elastic claw 4-2-3 radially contracts in the moving process of the connecting cavity 2-2-2, when the connecting elastic claw 4-2-3 moves to the bayonet 2-2-3, the connecting elastic claw 4-2-3 expands outwards into the bayonet 2-2-3, and the barb 4-2-4 clamps the inner wall of the bayonet 2-2-3 to prevent the connecting elastic claw 4-2-3 from axially separating from the bayonet 2-2-3.

The photovoltaic cable is plugged into the accommodating cavity from the accommodating notch. Accomodate the breach at first by strutting when the photovoltaic cable gets into, wait the photovoltaic cable and get into and accomodate the chamber after, accomodate the breach and fold, spacing is carried out to the photovoltaic cable, prevents its roll-off. The photovoltaic cable is stored.

Claims

1. The utility model provides a components of a whole that can function independently terminal box cable fixed knot constructs which characterized in that: the structure comprises a photovoltaic panel (1), wherein a negative terminal box (2), an intermediate terminal box (3), a positive terminal box (4) and a solar cell module are arranged on the photovoltaic panel; the negative terminal box (2) is connected with the solar cell module bus bar through a negative terminal box inner conductor, the positive terminal box (4) is connected with the solar cell module bus bar through a positive terminal box inner conductor, one side of the negative terminal box (2) is connected with a negative terminal connector (2-2), the other side of the negative terminal box is connected with one side of the positive terminal box (4) through a photovoltaic cable, and the other side of the positive terminal box (4) is connected with a positive terminal connector (4-2); the photovoltaic cable storage plate is characterized in that a negative photovoltaic cable storage plate (2-1) is installed on the negative terminal box (2), and a positive photovoltaic cable storage plate (4-1) is installed on the positive terminal box (4).

2. The structure for fixing a cable of a junction box of a triad as claimed in claim 1, wherein: the negative photovoltaic cable storage plate (2-1) and the positive photovoltaic cable storage plate (4-1) are both made of elastic materials.

3. The structure for fixing a cable of a junction box of a triad as claimed in claim 1, wherein: the negative photovoltaic cable storage plate (2-1) and the positive photovoltaic cable storage plate (4-1) are provided with storage grooves, the upper parts of the storage grooves are storage notches, and the lower parts of the storage grooves are storage cavities.

4. The structure for fixing a cable of a junction box of a triad as claimed in claim 1, wherein: the negative photovoltaic cable storage plate (2-1) and the positive photovoltaic cable storage plate (4-1) are arranged oppositely.

5. The structure for fixing a cable of a junction box of a triad as claimed in claim 1, wherein: the negative pole connector (2-2) middle part is equipped with negative pole electrically conductive connection post (2-2-1), negative pole electrically conductive connection post (2-2-1) periphery is opened has connection chamber (2-2-2), bayonet socket (2-2-3) are opened to connection chamber (2-2-2) periphery.

6. The structure for fixing a cable of a junction box of a triad as claimed in claim 5, wherein: the middle of the positive wire connector (4-2) is provided with a positive conductive connecting column (4-2-1), a positive connecting hole (4-2-2) is formed in the positive conductive connecting column (4-2-1), a connecting elastic claw (4-2-3) is arranged on the periphery of the positive conductive connecting column (4-2-1), and a barb (4-2-4) is arranged on the connecting elastic claw (4-2-3).

7. The structure for fixing a cable of a junction box of a triad as claimed in claim 3, wherein: the receiving notch is slightly smaller than the receiving cavity.