CN216819789U

CN216819789U - Heat dissipation type photovoltaic terminal box

Info

Publication number: CN216819789U
Application number: CN202122924535.6U
Authority: CN
Inventors: 常俊峰; 武校刚
Original assignee: Ningbo University of Technology
Current assignee: Ningbo University of Technology
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-06-24
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses a heat dissipation type photovoltaic junction box which comprises a photovoltaic junction box, wherein a curved pipe is fixedly connected to the inner wall of the lower end of the photovoltaic junction box, the curved pipe is U-shaped, a sealing cylinder is fixedly connected to the upper end of one side of the curved pipe, a first piston is connected to the inner wall of the sealing cylinder in a sliding mode, paraffin is fixedly connected to the upper end of the first piston, a first vertical rod is fixedly connected to the middle of the lower end of the first piston, the lower end of the first vertical rod penetrates through the side wall of the lower end of the sealing cylinder, the penetrating part of the lower end of the first vertical rod and the side wall of the lower end of the sealing cylinder is movably sealed, a second piston is fixedly connected to the lower end of the first vertical rod and is connected to the side wall of the curved pipe in a sliding mode, the curved pipe is far away from the upper end of the sealing cylinder and is fixedly connected with a cover plate, and the lower end of the cover plate is fixedly connected with the second vertical rod. According to the photovoltaic junction box, the heat absorption fan and the air supply fan are matched for use, so that air flow circulation is realized in the photovoltaic junction box, the maximum radiating effect is good, and the service life is long.

Description

Heat dissipation type photovoltaic terminal box

Technical Field

The utility model relates to the technical field of photovoltaic junction boxes, in particular to a heat dissipation type photovoltaic junction box.

Background

The photovoltaic junction box is a connector between a solar battery array formed by solar battery components and a solar charging control device, and is a cross-field comprehensive design combining electrical design, mechanical design and material science.

However, there are some problems with the photovoltaic junction box in the current market, which always bother users to use, such as poor heat dissipation effect and short service life, so we propose a heat dissipation type photovoltaic junction box, and we propose a heat dissipation type photovoltaic junction box to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems of poor heat dissipation effect and short service life in the prior art, and provides a heat dissipation type photovoltaic junction box.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a heat dissipation type photovoltaic junction box comprises a photovoltaic junction box, wherein a curved pipe is fixedly connected to the inner wall of the lower end of the photovoltaic junction box, the curved pipe is U-shaped, a sealing cylinder is fixedly connected to the upper end of one side of the curved pipe, a first piston is slidably connected to the inner wall of the sealing cylinder, paraffin is fixedly connected to the upper end of the first piston, a first vertical rod is fixedly connected to the middle of the lower end of the first piston, the lower end of the first vertical rod penetrates through the side wall of the lower end of the sealing cylinder, the penetrating part of the lower end of the first vertical rod and the side wall of the lower end of the sealing cylinder is movably sealed, a second piston is fixedly connected to the lower end of the first vertical rod, the second piston is slidably connected to the inner wall of the curved pipe, the curved pipe is far away from a cover plate fixedly connected to the upper end of the sealing cylinder, the lower end of the cover plate is fixedly connected with a second vertical rod, the lower end of the second vertical rod is fixedly connected with a first contact block, and the curved pipe are far away from the inner wall of the sealing cylinder, the utility model discloses a photovoltaic junction box, including curved pipe inner wall sliding connection second contact piece, first contact piece uses with the cooperation of second contact piece, air supply arrangement is installed to photovoltaic junction box one side, heat sink is installed to photovoltaic junction box opposite side.

Preferably, the air supply device comprises an air supply fan and a first protective cover, the first protective cover is fixedly connected with one side wall of the photovoltaic junction box, and the air supply fan is fixedly connected in the first protective cover.

Preferably, the heat absorbing device comprises a suction fan and a second protective cover, the second protective cover is fixedly connected with the other side wall of the photovoltaic junction box, and the suction fan is fixedly connected in the second protective cover.

Preferably, the two side walls of the sealed cylinder are fixedly connected with the support frames, and the support frames are fixedly connected with the outer side wall of the curved pipe at the lower end of the sealed cylinder.

Preferably, the inner wall of the lower end of the photovoltaic junction box is fixedly connected with a controller, and the controller is positioned on the side, close to the cover plate, of the curved pipe.

Preferably, the controller is electrically connected with the power supply, the controller is electrically connected with the suction fan, the air supply fan is electrically connected with the controller, the controller is electrically connected with the first contact block, and the controller is electrically connected with the second contact block.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the photovoltaic junction box, the heat absorption fan and the air supply fan are matched for use, airflow circulation is achieved in the photovoltaic junction box, the maximum radiating effect is good, the radiating effect of the whole device is better, the use requirements of users are met, and the service life is greatly prolonged;

2. according to the utility model, through the matching use of the sealed cylinder, the paraffin, the controller, the power supply, the first contact block and the second contact block, the operation of the air supply fan and the heat absorption fan can be started at the first time when the temperature of the photovoltaic junction box rises, and the heat dissipation performance is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of a heat dissipation type photovoltaic junction box according to the present invention;

fig. 2 is a schematic structural diagram at a in fig. 1.

Fig. 3 is a schematic circuit structure diagram of a heat dissipation type photovoltaic junction box according to the present invention.

In the figure: the photovoltaic junction box comprises a photovoltaic junction box 1, a curved tube 2, a sealed cylinder 3, paraffin wax 4, a first vertical rod 5, a first piston 6, a second piston 7, a cover plate 8, a second vertical rod 9, a first contact block 10, a second contact block 11, an air supply fan 12, a first protective cover 13, an air suction fan 14, a second protective cover 15, a supporting frame 16, a controller 17 and a power supply 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a heat dissipation type photovoltaic junction box comprises a photovoltaic junction box 1, a curved pipe 2 is fixedly connected to the inner wall of the lower end of the photovoltaic junction box 1, the curved pipe 2 is U-shaped, the upper end of one side of the curved pipe 2 is fixedly connected with a sealing cylinder 3, the inner wall of the sealing cylinder 3 is slidably connected with a first piston 6, the upper end of the first piston 6 is fixedly connected with paraffin 4, the middle part of the lower end of the first piston 6 is fixedly connected with a first vertical rod 5, the lower end of the first vertical rod 5 penetrates through the side wall of the lower end of the sealing cylinder 3, the penetrating part of the lower end of the first vertical rod 5 and the side wall of the lower end of the sealing cylinder 3 is movably sealed, the lower end of the first vertical rod 5 is fixedly connected with a second piston 7, the second piston 7 is slidably connected with the inner side wall of the curved pipe 2, the curved pipe 2 is far away from the upper end of the sealing cylinder 3 and is fixedly connected with a cover plate 8, the lower end of the cover plate 8 is fixedly connected with a second vertical rod 9, the lower end of the second vertical rod 9 is fixedly connected with a first contact block 10, first contact block 10 keeps away from sealed cylinder 3 end inner wall sliding connection with

bent pipe

2, and 2 inner wall sliding connection of bent pipe second contact blocks 11, first contact block 10 and the cooperation of second contact blocks 11 are used, and air supply arrangement is installed to 1 one side of photovoltaic junction box, and heat sink is installed to 1 opposite side of photovoltaic junction box. Through sealed cylinder 3, paraffin 4, the cooperation is used, has realized when the rising of 1 temperature of photovoltaic junction box, can start air supply fan 12 the very first time and absorb heat the fan operation, has improved the thermal diffusivity greatly.

Air supply arrangement includes supply-air fan 12, first protection casing 13, first protection and 1 lateral wall fixed connection of photovoltaic junction box, fixed connection supply-air fan 12 in the first protection casing 13. The outside air is fed into the photovoltaic junction box 1.

The heat absorbing device comprises a suction fan 14 and a second protective cover 15, the second protection is fixedly connected with the other side wall of the photovoltaic junction box 1, and the suction fan 14 is fixedly connected in the second protective cover 15. Hot air in the photovoltaic junction box 1 is delivered to the outside, and the heat in the photovoltaic junction box 1 is reduced.

Two side walls of the sealed cylinder 3 are fixedly connected with support frames 16, and the two support frames 16 are fixedly connected with the outer side wall of the curved pipe 2 at the lower end of the sealed cylinder 3. Reinforce sealed cylinder 3, prevent to rock the gas leakage.

The inner wall of the lower end of the photovoltaic junction box 1 is fixedly connected with a controller 17, and the controller 17 is located on the side, close to the cover plate 8, of the curved pipe 2. The switch of the heat absorption fan and the air supply fan 12 is controlled, so that heat dissipation is facilitated.

The controller 17 is electrically connected with the power supply 18, the controller 17 is electrically connected with the suction fan 14, the air supply fan 12 is electrically connected with the controller 17, the controller 17 is electrically connected with the first contact block 10, and the controller 17 is electrically connected with the second contact block 11. The photovoltaic junction box has the advantages that airflow circulation is achieved in the photovoltaic junction box 1, the maximum radiating effect is good, the radiating effect of the whole device is better, the use requirements of users are met, and the service life is greatly prolonged.

When the temperature of the photovoltaic junction box 1 rises on that day, the paraffin 4 absorbs heat to generate phase change reaction, the first piston 6 pushes the first vertical rod 5, the first vertical rod 5 pushes the second piston 7, the second piston 7 drags the gas in the curved pipe 2 to enable the first contact block 10 to be in contact with the second contact block 11, the controller 17 receives a signal, the controller 17 starts the heat absorption fan and the air supply fan 12 to enable the air flow to be circulated in the photovoltaic junction box 1, the maximum heat dissipation effect is good, the heat dissipation effect of the whole device is better, the use requirements of users are met, and the service life is greatly prolonged.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A heat dissipation type photovoltaic junction box comprises a photovoltaic junction box (1) and is characterized in that a bent pipe (2) is fixedly connected to the inner wall of the lower end of the photovoltaic junction box (1), the bent pipe (2) is U-shaped, a sealing cylinder (3) is fixedly connected to the upper end of one side of the bent pipe (2), a first piston (6) is slidably connected to the inner wall of the sealing cylinder (3), paraffin (4) is fixedly connected to the upper end of the first piston (6), a first vertical rod (5) is fixedly connected to the middle of the lower end of the first piston (6), the lower end of the first vertical rod (5) penetrates through the side wall of the lower end of the sealing cylinder (3), the penetrating part of the lower end of the first vertical rod (5) and the side wall of the lower end of the sealing cylinder (3) is movably sealed, a second piston (7) is fixedly connected to the lower end of the first vertical rod (5), and the inner side wall of the bent pipe (2) is slidably connected to the second piston (7), sealed cylinder (3) upper end fixed connection apron (8) are kept away from to bent venturi tube (2), apron (8) lower extreme fixed connection second montant (9), the first contact piece (10) of second montant (9) lower extreme fixed connection, sealed cylinder (3) end inner wall sliding connection is kept away from with bent venturi tube (2) first contact piece (10), bent venturi tube (2) inner wall sliding connection second contact piece (11), first contact piece (10) are used with the cooperation of second contact piece (11), air supply arrangement is installed to photovoltaic junction box (1) one side, heat sink is installed to photovoltaic junction box (1) opposite side.

2. The heat dissipation type photovoltaic junction box according to claim 1, wherein the air supply device comprises an air supply fan (12) and a first protective cover (13), the first protective cover is fixedly connected with one side wall of the photovoltaic junction box (1), and the air supply fan (12) is fixedly connected in the first protective cover (13).

3. The heat dissipation type photovoltaic junction box according to claim 2, wherein the heat sink comprises a suction fan (14) and a second protective cover (15), the second protective cover is fixedly connected with the other side wall of the photovoltaic junction box (1), and the suction fan (14) is fixedly connected in the second protective cover (15).

4. The heat dissipation type photovoltaic junction box according to claim 1, wherein two side walls of the sealed cylinder (3) are fixedly connected with support frames (16), and the two support frames (16) are fixedly connected with the outer side wall of the curved tube (2) at the lower end of the sealed cylinder (3).

5. The heat dissipation type photovoltaic junction box according to claim 3, wherein a controller (17) is fixedly connected to the inner wall of the lower end of the photovoltaic junction box (1), and the controller (17) is located on the side, close to the cover plate (8), of the curved pipe (2).

6. The heat dissipation type photovoltaic junction box according to claim 5, wherein the controller (17) is electrically connected to a power supply (18), the controller (17) is electrically connected to the suction fan (14), the blowing fan (12) is electrically connected to the controller (17), the controller (17) is electrically connected to the first contact block (10), and the controller (17) is electrically connected to the second contact block (11).