CN217849370U

CN217849370U - Photovoltaic terminal box heat radiation structure based on spatial structure

Info

Publication number: CN217849370U
Application number: CN202221510881.8U
Authority: CN
Inventors: 钱兵; 陈如意; 龚琴赟; 何飞
Original assignee: CECEP Solar Energy Technology Zhenjiang Co Ltd
Current assignee: CECEP Solar Energy Technology Zhenjiang Co Ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-11-18
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses a photovoltaic terminal box heat radiation structure based on spatial structure, including photovoltaic terminal box main body frame and the diode part of setting in photovoltaic terminal box main body frame inside, the perpendicular bisector direction of diode part is perpendicular setting with main body frame's central line, and the upper and lower tip of diode part all is equipped with the radiating part, and two radiating parts set up the direction and be central symmetry, the direction of the heat dissipation export of radiating part is opposite with the wire connection direction of diode part. Through setting up axial and vertical mounting means in this application to the three-dimensional design method in the reversal space of cooperation corresponding heat dissipation part, can realize dispelling the heat to the effectual space of diode part, thereby realize the double-deck heat dissipation channel in the space, so that inside thermal effective derivation.

Description

Photovoltaic terminal box heat radiation structure based on spatial structure

Technical Field

The utility model relates to a photovoltaic terminal box heat radiation structure based on spatial structure.

Background

With the popularization and further development of photovoltaic power generation technology, the market demand for high-power components is in an increasing state, and in order to further improve the efficiency of photovoltaic cells, the following two methods are often adopted:

1. the battery efficiency is improved;

2. loading by adopting an efficient component technology;

3. the size of the silicon wafer is increased.

Wherein, the power of current photovoltaic module can be effectually promoted to three kinds of modes homoenergetic, but also can promote the performance requirement of other parts in the photovoltaic module system simultaneously, if promote the size of photovoltaic silicon chip, can further increase the short-circuit current of subassembly to promote the photovoltaic terminal box condition of generating heat under the user state.

The existing photovoltaic junction box is relatively common in a miniaturized and modularized diode structure, the main structure of the photovoltaic junction box is a shell made of high polymer materials, and an internal diode part is arranged, wherein a main radiating part is heat generated after the diode passes through current, the heat is usually radiated by itself through the internal structure, and generally, the photovoltaic junction box is not externally connected with other radiating parts to perform auxiliary radiating.

In view of the above circumstances, it is particularly critical to develop a photovoltaic junction box with strong heat dissipation capability, and according to the cost and structural limitations of the photovoltaic junction box, the development of the heat dissipation direction thereof is often only based on the improvement of the heat dissipation performance of the structure and the material.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a photovoltaic terminal box heat radiation structure based on spatial structure in order to solve the not enough of above prior art.

The utility model provides a photovoltaic terminal box heat radiation structure based on spatial structure, includes photovoltaic terminal box main body frame and sets up the diode part in photovoltaic terminal box main body frame inside, and the perpendicular bisector direction of diode part is perpendicular setting with main body frame's central line, and the upper and lower tip of diode part all is equipped with the heat dissipation part, and the direction that sets up of two heat dissipation parts is central symmetry, the direction of the heat dissipation export of heat dissipation part is opposite with the wire connection direction of diode part.

This structure is directed at the shortcoming of the current structure of photovoltaic terminal box, carries out the promotion of high-efficient heat-sinking capability through design space heat radiation structure to through reverse design thinking, promote holistic heat-sinking capability, specific project organization including following: the heat dissipation outlet of the heat dissipation part connected with the lead at the upper end of the diode part is positioned below the heat dissipation outlet of the heat conduction part connected with the lead at the lower end of the diode part is positioned above the heat dissipation outlet of the heat conduction part.

Preferably, the diode component is vertically arranged, the wires at two ends of the diode component are arranged in a bent manner, and the bending directions of the two wires are opposite.

In order to realize the reverse arrangement of the heat dissipation outlet and the high-efficiency heat dissipation, the heat dissipation part comprises a first heat dissipation plate, a second heat dissipation plate and a third heat dissipation plate, and the length of the first heat dissipation plate is greater than that of the third heat dissipation plate;

the first heating panel, the second heating panel and the third heating panel are sequentially connected in a rotating mode, the rotating directions of the first heating panel, the second heating panel and the third heating panel are the same, the first heating panel is directly connected with the conducting wire of the diode component in a contact mode, and a heat dissipation outlet is formed between the third heating panel and the other heat dissipation component.

In order to prevent the bus bar from interfering the condition when setting up, can be adaptability with the setting of bus bar dislocation to pass the groove with the bus bar in diode part middle part and be vertical setting design, with the demand of passing of satisfying the bus bar.

Preferably, the heat dissipation component is made of copper, and the diode can be of a common diode structure or a high-quality axial diode structure.

Has the advantages that:

through setting up axial and vertical mounting means in this application, and cooperate the three-dimensional design method in the reversal space of corresponding heat dissipation part, can realize the effectual space heat dissipation to the diode part, in the use, the diode is the axial design, the heat that its surface produced can effectually pass through the wire, the heat dissipation part is outwards derived, and see the heat transfer with air medium, outwards derive the heat by the heat dissipation exit of heat dissipation part, thereby realize the double-deck heat dissipation channel in space, so that inside thermal effective derivation.

Drawings

FIG. 1 is a schematic structural view of a prior art photovoltaic junction box;

FIG. 2 is a schematic design diagram of a diode component inside a photovoltaic junction box based on a space structure;

FIG. 3 is a schematic diagram of a heat dissipation process of a photovoltaic junction box based on a space structure;

1. and a diode.

Detailed Description

In order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.

As shown in fig. 1, a design structure of a conventional photovoltaic junction box.

As shown in fig. 2, a structure of a photovoltaic junction box based on a space structure. The junction box is mainly designed in such a way that an axial diode is vertically and vertically placed, and copper sheets which are attached to the periphery of the diode are connected to the anode lead and the cathode lead of the diode, so that a double-layer heat dissipation channel is formed in space, and the heat dissipation form is shown in fig. 3.

Designing the diodes of the junction box into an axial type, and vertically placing the diodes vertically; the double-layer heat dissipation channel is formed in the space by designing the peripheral edge of the copper sheet at the position of the diode lead, and the specific effect is shown in fig. 3.

As shown in fig. 2, the diode component is vertically disposed, the wires at two ends of the diode component are bent, and the bending directions of the two wires are opposite.

The upper end and the lower end of the diode component are respectively provided with a heat dissipation component, the arrangement directions of the two heat dissipation components are centrosymmetric, and the directions of heat dissipation outlets of the heat dissipation components are opposite to the connection direction of the wires of the diode component.

The heat dissipation part comprises a first heat dissipation plate, a second heat dissipation plate and a third heat dissipation plate, and the length of the first heat dissipation plate is greater than that of the third heat dissipation plate;

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a photovoltaic terminal box heat radiation structure based on spatial structure which characterized in that, includes photovoltaic terminal box main part frame and sets up the diode part in photovoltaic terminal box main part frame inside, and the perpendicular bisector direction of diode part is perpendicular setting with the central line of main part frame, and the upper and lower tip of diode part all is equipped with the heat dissipation part, and two heat dissipation parts set up the direction and be central symmetry, the direction of the heat dissipation export of heat dissipation part is opposite with the wire connection direction of diode part.

2. The space structure-based photovoltaic junction box heat dissipation structure as recited in claim 1, wherein the heat dissipation outlet of the heat dissipation member connected to the upper lead of the diode member is located below, and the heat dissipation outlet of the heat conduction member connected to the lower lead of the diode member is located above.

3. The photovoltaic junction box heat dissipation structure based on the spatial structure as claimed in claim 1, wherein the diode component is vertically disposed, the wires at two ends of the diode component are bent, and the bending directions of the two wires are opposite.

4. The photovoltaic junction box heat dissipation structure based on the space structure as claimed in claim 1, wherein the heat dissipation member includes a first heat dissipation plate, a second heat dissipation plate and a third heat dissipation plate, the first heat dissipation plate has a length greater than that of the third heat dissipation plate;

5. The space structure based photovoltaic junction box heat dissipation structure as recited in claim 1, wherein the bus bars in the middle of the diode component are vertically disposed through the slots.

6. The photovoltaic junction box heat dissipation structure based on the spatial structure as claimed in claim 1, wherein the heat dissipation member is made of copper.