CN220985622U - Axial diode junction box - Google Patents

Abstract

The utility model relates to the technical field of photovoltaic panel junction boxes, in particular to an axial diode junction box which comprises an integrally formed box body and cooling fins, wherein the box body is internally provided with connected conducting fins and diodes, the diodes are axially placed, the cooling fins penetrate through the inner and outer sides of the box body and are in contact with the diodes, and the cooling fins positioned on the outer side of the box body are attached to the outer wall of the box body; the box body is provided with a groove for the radiating fin to pass through, the contact part of the radiating fin and the diode is sealed, the radiating fin is perpendicular to the diode, and the radiating fin is provided with a through hole or a groove and is clamped at the periphery of the diode; the axial diode junction box provided by the utility model has the advantages that the space utilization rate is high, the heat of the diode is efficiently and directly led to the outside of the box body, the heat dissipation efficiency is improved, the number of parts is reduced, the material cost of the heat dissipation fin is reduced, the complexity of the product is reduced, the volume is reduced, and the assembly is easy.

Description

Axial diode junction box

Technical Field

The utility model relates to the technical field of photovoltaic panel junction boxes, in particular to an axial diode junction box.

Background

The junction box is used for connecting a solar battery circuit inside the assembly with an external circuit, the performance and the stability are vital, a bypass diode is arranged inside the junction box to protect the battery, the diode can normally work when the diode is blocked, along with the application of the high-power and high-efficiency solar assembly, the bypass diode has larger and larger tests when the solar assembly generates hot spot effect, and the diode has the phenomena of overtemperature damage, junction box burnout and the like, so that the heat dissipation efficiency of the diode is improved to be an urgent problem to be solved.

Some existing junction boxes increase the heat dissipation efficiency of the junction box by increasing the conducting strip, the radiating fin and the like, but the heat generated by the diode is still trapped inside the junction box by the pouring sealant and the junction box body, so that the heat dissipation efficiency is difficult to be improved, and the manufacturing cost of the radiating fin is increased.

Disclosure of Invention

The purpose of the utility model is that: the axial diode junction box is provided, the distribution mode of the radiating fins is changed, and heat generated by the diode is efficiently led out of the junction box.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The utility model provides an axial diode terminal box, includes integrated into one piece's box body and fin, be provided with conducting strip and the diode that meets in the box body, the diode axial is placed, the fin link up the box body inside and outside and contact with the diode, and the fin that is located the box body outside laminates the box body outer wall setting.

Further, the box body is provided with a groove for the radiating fin to pass through, the contact part of the radiating fin and the diode is sealed, the radiating fin is perpendicular to the diode, and the radiating fin is provided with a through hole or a groove and is clamped at the periphery of the diode.

Further, the radiating fins vertically penetrate through two opposite side walls of the box body, and the thickness range of the radiating fins is 2-5 mm.

Further, the part of the radiating fin exposed out of the box body is subjected to bending treatment, and the part of the radiating fin positioned outside the box body is at least one third of the total volume.

Further, a groove is formed in the outer side of the diode and is clamped with the conducting strip.

Further, the radiating fin is perpendicular to the bottom surface of the box body.

Further, a box cover is arranged on the box body.

The technical scheme of the utility model has the beneficial effects that:

The axial diode junction box provided by the utility model has the advantages that the utilization rate of the internal space is high, the heat of the diode is efficiently and directly led to the outside of the box body, the heat dissipation efficiency is improved, the number of parts is reduced, the material cost of the radiating fin is reduced, the complexity of the product is reduced, the volume is reduced, and the assembly is easy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic diagram illustrating the connection of a heat sink and a diode according to the present utility model;

The marks in the figure: 1. a case body; 2. a heat sink; 1a, a conductive sheet; 1b, diode.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, an axial diode junction box comprises a box body 1 and a radiating fin 2 which are integrally formed, wherein an openable box cover is arranged on the box body 1, and a conducting strip 1a and a diode 1b which are connected are arranged in the box body 1, so that the function of transmitting electric power generated by a solar photovoltaic module to an external circuit is realized; the diode 1b is axially placed, namely, the cylindrical diode 1b tube body is placed along the long and narrow space in the box body 1, so that the space utilization rate in the box body 1 is high, the box body 1 can have smaller volume, and raw materials are saved; the radiating fin 2 penetrates through the inside and the outside of the box body 1 and is contacted with the diode 1b, the radiating fin 2 positioned on the outer side of the box body 1 is attached to the outer wall of the box body 1, and in the mode, the radiating fin 2 directly leads out heat generated by the diode 1b to the outside of the junction box.

Specifically, the box body 1 is provided with a groove for the radiating fin 2 to pass through, the contact part of the radiating fin 2 and the box body is sealed, so that the tightness is ensured, the junction box can prevent rainwater and dust and prevent insects from entering, the radiating fin 2 and the diode 1b are vertically arranged, the radiating fin 2 is provided with a through hole or a groove and is clamped at the periphery of the diode 1b, the outside of the diode 1b is provided with a groove which is clamped with the conducting fin 1a, the assembly is easy, and in addition, in order to fill a gap, a heat conducting medium is arranged at the contact part of the radiating fin 2 and the diode 1 b; the radiating fins 2 with the thickness of 2-5 mm vertically penetrate through two opposite longer side walls of the box body 1, and the radiating fins 2 are also vertical to the bottom surface of the box body 1; the part of the radiating fin 2 exposed out of the box body 1 is bent so as to be attached to the outer wall of the box body 1, the whole fin structure is not required to be assembled in a segmented mode through the bending process, the part of the radiating fin 2 located out of the box body 1 at least occupies one third of the total volume, and the radiating fin 2 and the outside air are guaranteed to have a large enough contact area.

The diode 1b is an electronic component with strong sensitivity, and can be burnt out when being used in an overtemperature mode, so that the effect of balancing current cannot be achieved, and finally, the photovoltaic junction box is burnt out, if the junction box 1 adopts a mode of simply increasing the volume of an internal radiating fin, the heat generated by the diode 1b cannot be directly led out of the junction box, so that the radiating capacity cannot be obviously improved, and the defect of increasing the manufacturing cost of the radiating fin can be brought. The utility model ensures that the space utilization rate in the box body 1 is high, the internal and external heat conduction is direct, the consumption of the internal radiating fins is reduced, and the radiating efficiency is obviously improved.

The above embodiments according to the present utility model are intended to suggest that, from the above description, a person skilled in the relevant art can make various changes and modifications without departing from the scope of the technical idea of the present utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present utility model should be included in the protection scope of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of the claims.

Claims (6)

1. An axial diode junction box, characterized in that: including integrated into one piece's box body (1) and fin (2), be provided with conducting strip (1 a) and diode (1 b) that meet in box body (1), diode (1 b) axial is placed, fin (2) link up inside and outside box body (1) and contact with diode (1 b), and fin (2) laminating box body (1) outer wall setting in the box body (1) outside.

2. An axial diode junction box as defined in claim 1, wherein: the box body (1) is provided with a groove for the radiating fin (2) to pass through, the contact part of the radiating fin and the diode (1 b) is sealed, the radiating fin (2) is perpendicular to the diode (1 b), and the radiating fin (2) is provided with a through hole or a groove and is clamped at the periphery of the diode (1 b).

3. An axial diode junction box as defined in claim 2, wherein: the radiating fins (2) vertically penetrate through two opposite side walls of the box body (1), and the thickness range of the radiating fins is 2-5 mm.

4. An axial diode junction box as claimed in claim 3, wherein: the part of the radiating fin (2) exposed out of the box body (1) is subjected to bending treatment, and the part of the radiating fin (2) positioned outside the box body (1) is at least one third of the total volume.

5. An axial diode junction box as defined in claim 4, wherein: the outer side of the diode (1 b) is provided with a groove which is clamped with the conducting strip (1 a).

6. An axial diode junction box as defined in claim 5, wherein: the radiating fins (2) are perpendicular to the bottom surface of the box body (1).