CN219554918U

CN219554918U - Copper-aluminum combined three-split photovoltaic junction box

Info

Publication number: CN219554918U
Application number: CN202320403696.7U
Authority: CN
Inventors: 张洪飞; 倪端; 濮旭彬
Original assignee: Jiangsu Heyun Electronic Technology Co ltd
Current assignee: Jiangsu Heyun Electronic Technology Co ltd
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-08-18
Anticipated expiration: 2033-03-07

Abstract

The utility model relates to the technical field of solar photovoltaics, in particular to a copper-aluminum combined three-split photovoltaic junction box which comprises a negative electrode junction box, a middle junction box and a positive electrode junction box, wherein one side of the negative electrode junction box is connected with a negative electrode connector, one side of the positive electrode junction box is connected with a positive electrode connector, conductors in the negative electrode junction box, the middle junction box and the positive electrode junction box are communicated with copper sheets, the copper sheets are communicated with aluminum sheets, and the aluminum sheets are fixedly arranged in the corresponding negative electrode junction box, middle junction box and positive electrode junction box. The utility model relates to a copper-aluminum combined three-split photovoltaic junction box, which increases the contact area of an aluminum plate and air through a heat dissipation groove and a conical column arranged on the aluminum plate, thereby expanding the heat dissipation area of the aluminum plate and enabling circuit elements in the junction box to rapidly dissipate heat through the heat dissipation groove and the conical column.

Description

Copper-aluminum combined three-split photovoltaic junction box

Technical Field

The utility model relates to the technical field of solar photovoltaic, in particular to a copper-aluminum combined three-split photovoltaic junction box.

Background

The photovoltaic junction box is a connecting device between a solar cell matrix formed by the solar cell modules and the solar charging control device, and mainly used for connecting and protecting the solar cell modules, connecting the power generated by the solar cells with an external circuit and conducting the current generated by the solar cell modules. The three-split photovoltaic junction box is one of the photovoltaic junction boxes and consists of an anode junction box, a cathode junction box and a plurality of middle junction boxes. During the use of the three-part photovoltaic junction box, the circuit is kept in a passage state for a long time, which causes the problem that elements in the circuit are overheated and burnt.

Disclosure of Invention

The utility model aims to solve the technical problems that: in order to overcome the technical problems in the prior art, the utility model provides a copper-aluminum combined three-split photovoltaic junction box, which comprises,

the negative electrode junction box, the middle junction box and the positive electrode junction box, wherein one side of the negative electrode junction box is connected with the negative electrode connector, one side of the positive electrode junction box is connected with the positive electrode connector,

the conductors in the negative electrode junction box, the middle junction box and the positive electrode junction box are communicated with copper sheets, the copper sheets are communicated with aluminum sheets, and the aluminum sheets are fixedly arranged in the corresponding negative electrode junction box, middle junction box and positive electrode junction box.

Further, the negative electrode connector is conducted with the copper sheet in the negative electrode junction box through the first lead, and the positive electrode connector is conducted with the copper sheet in the positive electrode junction box through the second lead.

Further, rubber rings are filled in the wire inlets of the positive electrode junction box and the negative electrode junction box.

Further, guide blocks are arranged in the positive electrode junction box, the middle junction box and the negative electrode junction box, guide posts are arranged on the guide blocks, guide holes are formed in the aluminum sheet, wherein,

the aluminum sheet passes through the guide post through the guide hole and is attached to the guide block.

Further, a plurality of heat dissipation grooves are formed in the aluminum sheet, and the heat dissipation grooves are conical.

Further, the aluminum sheet is provided with a conical column in a downward extending mode, and the heat dissipation groove is formed in the corresponding conical column.

Further, baffles are downwards extended from two sides of the aluminum sheet.

Further, two clamping plates extend on the aluminum sheet, a clamping cavity is formed between two adjacent clamping plates, wherein,

the clamping cavity is adapted to clamp the conductor.

The beneficial effects are that: the utility model relates to a copper-aluminum combined three-split photovoltaic junction box, which increases the contact area of an aluminum plate and air through a heat dissipation groove and a conical column arranged on the aluminum plate, thereby expanding the heat dissipation area of the aluminum plate and enabling circuit elements in the junction box to rapidly dissipate heat through the heat dissipation groove and the conical column.

Drawings

FIG. 1 is a first schematic illustration of the overall structure of the present utility model;

FIG. 2 is a second schematic illustration of the internal structure of the present utility model;

FIG. 3 is a schematic view of the structure of the negative terminal box of the present utility model;

FIG. 4 is a schematic view of the intermediate junction box of the present utility model;

FIG. 5 is a schematic view of the structure of the positive terminal box of the present utility model;

in the figure:

100. negative electrode terminal box 110, negative electrode connector 120, first lead 200, intermediate terminal box 300, positive electrode terminal box 310, positive electrode connector 320, second lead 400, conductor 500, copper sheet 600, aluminum sheet 610, guide hole 620, heat dissipation groove 630, tapered column 640, baffle 650, clamping plate 700, rubber ring 800, guide block 810, guide column.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the utility model. In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may include one or more of the feature, either explicitly or implicitly. Moreover, the terms "first," "second," and the like, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

Example 1

As shown in fig. 1 to 5, a copper-aluminum combined three-part photovoltaic junction box comprises a negative junction box 100, a middle junction box 200 and a positive junction box 300, wherein one side of the negative junction box 100 is connected with a negative junction 110, one side of the positive junction box 300 is connected with a positive junction 310, a conductor 400 in the negative junction box 100, the middle junction box 200 and the positive junction box 300 is conducted with a copper sheet 500, the copper sheet 500 is conducted with an aluminum sheet 600, two ends of the conductor 400 in the negative junction box 100, the middle junction box 200 and the positive junction box 300 are respectively provided with the copper sheet 500, namely, two ends in the length direction in the negative junction box 100, the middle junction box 200 and the positive junction box 300 are respectively provided with the copper sheet 500, and each copper sheet 500 and the aluminum sheet 600 are respectively arranged under the copper sheet 500 and are in a bonding mode, so that heat in the negative junction box 100, the middle junction box 200 and the positive junction box 300 is conducted to the copper sheet 600 through the copper sheet 500, and the corresponding copper sheet 600 are fixed in the positive junction box 100, the middle junction box 200 and the positive junction box 300, and the negative junction box 300 are conducted to the outside. The conductor 400 is formed by a cylinder and conductive posts fixedly arranged on two sides of the cylinder, two conductive posts are attached to the copper sheets 500, the cylinder is communicated with the two conductive posts, so that the copper sheets 500 on two sides in the negative electrode junction box 100, the middle junction box 200 and the positive electrode junction box 300 are communicated with the aluminum sheets 600, and the currents in the negative electrode junction box 100, the middle junction box 200 and the positive electrode junction box 300 normally circulate.

The negative electrode connector 110 is conducted with the copper sheet 500 in the negative electrode junction box 100 through the first lead 120, the first lead 120 is fixedly arranged on the negative electrode junction box 100, the first lead 120 extends into the negative electrode junction box 100 and is conducted with the copper sheet 500, so that the current on the negative electrode connector 110 is conducted to the copper sheet 500 through the first lead 120, and the current is conducted to the copper sheet 500 on the other side through the conductor 400, so that all parts in the negative electrode junction box 100 are conducted; the positive connector 310 is conducted with the copper sheet 500 in the positive terminal box 300 through the second lead 320, the second lead 320 is fixedly arranged on the positive terminal box 300, and the first lead 120 extends into the positive terminal box 300 and is conducted with the copper sheet 500, so that the current on the positive terminal is conducted to the copper sheet 500 through the second lead 320, and then is conducted to the copper sheet 500 on the other side through the conductor 400, so that each part in the positive terminal box 300 is conducted.

The wire inlets of the positive electrode terminal box 300 and the negative electrode terminal box 100 are filled with rubber rings 700. The rubber ring 700 has elasticity, so that the rubber ring 700 can be slightly larger than the first lead 120 of the rubber ring 700, and the rubber ring 700 is made of a flexible material, so that when the connecting part of the first lead 120 and the rubber ring 700 twists, compared with a hard material, the first lead 120 can be prevented from being broken due to long-time friction at the connecting part.

The positive terminal box 300, the middle terminal box 200 and the negative terminal box 100 are internally provided with guide blocks 800, the guide blocks 800 are uniformly arranged on two sides of the positive terminal box 300, the middle terminal box 200 and the negative terminal box 100, each side is provided with two guide blocks 800, each guide block 800 is provided with a guide column 810, the size of each guide column 810 is smaller than that of each guide block 800, each aluminum sheet 600 is provided with a guide hole 610, each aluminum sheet 600 passes through the guide column 810 to be attached to the corresponding guide block 800 through the corresponding guide hole 610, the size of each guide column 810 is matched with the size of the corresponding guide hole 610, each aluminum sheet 600 is provided with two guide holes 610 on the same side, each aluminum sheet 600 is attached to the corresponding guide column 500, and each aluminum sheet 600 and the corresponding copper sheet 500 are pressed and fixed on the corresponding guide block 800 through the corresponding conductor 400.

A plurality of heat dissipation grooves 620 are formed in the aluminum sheet 600, the heat dissipation grooves 620 are uniformly formed in the aluminum sheet 600, the heat dissipation grooves 620 are tapered, one end with a smaller angle faces to the lower parts of the positive electrode junction box 300, the middle junction box 200 and the negative electrode junction box 100, the heat dissipation of the aluminum sheet 600 can be accelerated through the arrangement of the heat dissipation grooves 620, meanwhile, the heat dissipation areas of the heat dissipation grooves 620 can be increased due to the tapered shape, and the heat dissipation is accelerated.

The aluminum sheet 600 has tapered posts 630 extending downward, and the heat dissipation grooves 620 are formed in the corresponding tapered posts 630. One taper groove is formed in each taper column 630, the taper columns 630 are uniformly arranged on the aluminum sheet 600, and the taper columns 630 can transfer heat on the aluminum sheet 600 to the taper grooves and then transfer the heat to the taper columns 630 through the taper grooves, so that heat dissipation of the aluminum sheet 600 is quickened.

The aluminum sheet 600 is extended downward at both sides thereof with baffles 640. The baffle 640 supports against the bottoms of the positive terminal box 300, the intermediate terminal box 200 and the negative terminal box 100, and plays a supporting role.

Two clamping plates 650 extend on the aluminum sheet 600, and a clamping cavity is formed between two adjacent clamping plates 650, and the clamping cavity is adapted to clamp the conductor 400. The aluminum sheets 600 on the two sides in the positive electrode junction box 300, the middle junction box 200 and the negative electrode junction box 100 are respectively provided with a clamping plate 650 in an extending mode, one side, close to the copper sheet 500, of the clamping plate 650 is larger in size, the other side, far away from the copper sheet 500 is smaller in size, of the clamping plate 650, the clamping cavity is located on one side, close to the conductor 400, of the clamping plate, so that the conductor 400 is clamped in the clamping cavity, the conductor 400 is attached to the copper sheet 500, and current on one side in the positive electrode junction box 300, the middle junction box 200 and the negative electrode junction box 100 is transmitted to the other side.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. A copper aluminium combined three components of a whole that can function independently photovoltaic terminal box, its characterized in that: comprising

2. A copper aluminum bonded three-part photovoltaic junction box as claimed in claim 1, wherein:

the negative electrode connector is communicated with the copper sheet in the negative electrode junction box through a first lead, and the positive electrode connector is communicated with the copper sheet in the positive electrode junction box through a second lead.

3. A copper aluminum bonded three-part photovoltaic junction box as claimed in claim 2, wherein:

and rubber rings are filled in the wire inlets of the positive electrode junction box and the negative electrode junction box.

4. A copper aluminum bonded three-part photovoltaic junction box as claimed in claim 1, wherein:

guide blocks are arranged in the positive electrode junction box, the middle junction box and the negative electrode junction box, guide posts are arranged on the guide blocks, guide holes are formed in the aluminum sheet, wherein,

5. A copper aluminum bonded three-part photovoltaic junction box as defined in claim 4, wherein:

a plurality of heat dissipation grooves are formed in the aluminum sheet, and the heat dissipation grooves are conical.

6. A copper aluminum bonded three-part photovoltaic junction box as defined in claim 5, wherein:

and the aluminum sheet is downwards extended with a conical column, and the heat dissipation groove is formed in the corresponding conical column.

7. A copper aluminum bonded three-part photovoltaic junction box as defined in claim 4, wherein:

baffle plates extend downwards from two sides of the aluminum sheet.

8. A copper aluminum bonded three-part photovoltaic junction box as defined in claim 4, wherein:

two clamping plates extend on the aluminum sheet, a clamping cavity is formed between two adjacent clamping plates, wherein,

the clamping cavity is adapted to clamp the conductor.