CN-121984435-A - Photovoltaic module junction box with high heat dissipation efficiency

CN121984435ACN 121984435 ACN121984435 ACN 121984435ACN-121984435-A

Abstract

The invention discloses a photovoltaic module junction box with high heat dissipation efficiency, which relates to the technical field of photovoltaic junction boxes and comprises a junction box main body, wherein an air inlet pipe and an air outlet pipe are respectively and fixedly arranged at positions corresponding to positions of radiating fins on two sides of the junction box main body, one ends of the air inlet pipe and the air outlet pipe are respectively communicated with two ends of a connecting pipe on one side of the junction box main body, an air inlet fan and an air outlet fan are respectively and fixedly arranged on fixing shafts in one ends of the air inlet pipe and the air outlet pipe, a fixed filter screen is fixedly arranged at one end of the air outlet pipe, a round filter screen is arranged in the middle of a sliding plate, a cleaning mechanism is arranged on one side of the sliding plate, and a heat dissipation mechanism is arranged on one side of the junction box main body.

Inventors

WANG SHUAIJIE
GAO QINGZHONG
ZHANG XUEYAN
GUAN XIN
LIU SHU
GUO RUI
CHEN LIN
QU BO
WANG DIANMING

Assignees

沈阳工程学院

Dates

Publication Date: 20260505
Application Date: 20240306

Claims (8)

1. The utility model provides a photovoltaic module terminal box that radiating efficiency is high, includes terminal box main part (11), terminal box main part (11) bottom is hugged closely and is equipped with sealed bottom plate (12), sealed bottom plate (12) are fixed to be established in the inside bottom of outer case (13), sealed bottom plate (12) inside is equipped with the fixed subassembly that fixes terminal box main part (11), be equipped with top cap (14) in hugging closely in outer case (13) upper end, terminal box main part (11) inside is equipped with a plurality of pencil (18), a serial communication port, terminal box main part (11) both sides are all fixed and are equipped with a plurality of fin (19), terminal box main part (11) both sides and fin (19) position corresponding department are fixed respectively and are equipped with intake pipe (20) and outlet duct (29), intake pipe (20) and outlet duct (29) one end respectively with terminal box main part (11) one side connecting pipe (28) both ends intercommunication, intake pipe (20) and outlet duct (29) one end are fixed respectively on the fixed air inlet fan (23) and exhaust fan (31), the fixed axle rotates and establishes in terminal box main part (11) inside and is equipped with fixed axle (29), terminal box (11) are equipped with fixed filter screen (30) rotation, the utility model discloses a terminal box, including terminal box main part (11), intake pipe (20) one end slip is equipped with sliding plate (21), sliding plate (21) middle part is equipped with circular filter screen, sliding plate (21) one side is equipped with the clearance mechanism that is convenient for clear up circular filter screen, terminal box main part (11) one side is equipped with the radiating mechanism that is convenient for carry out radiating to terminal box main part (11) inside.
2. The photovoltaic module junction box with high heat dissipation efficiency according to claim 1, wherein the fixing component comprises a limiting block (15) and a limiting frame (16), a plurality of limiting blocks (15) are fixedly arranged on the junction box main body (11), the limiting frame (16) is slidably arranged in an installation groove at the periphery of the sealing bottom plate (12) at the position corresponding to the limiting block (15), one side of the limiting frame (16) is fixedly connected with one end of a tension spring (17), and the other end of the tension spring (17) is fixedly connected with one side of the installation groove.
3. The photovoltaic module junction box with high heat dissipation efficiency according to claim 1, wherein the driving assembly comprises a motor (24), the motor (24) is fixedly arranged at the upper end of a mounting plate on one side of the junction box main body (11), two driving wheels on an output shaft of the motor (24) are respectively in transmission connection with driven wheels on two fixed shafts through a first belt and a second belt, and a control assembly for controlling the starting of the motor (24) is arranged on one side of the junction box main body (11).
4. A photovoltaic module junction box with high heat dissipation efficiency according to claim 3, characterized in that, the control module comprises an expansion tank (32) and a connecting spring piece (35), the connecting spring piece (35) is fixedly arranged at the input end of the motor (24), the connecting spring piece (35) is tightly attached to one end contact of the power supply tube, the input end of the motor (24) and one end of the power supply tube are both arranged inside the fixed box, the fixed box is fixedly arranged at one side of the junction box main body (11), the expansion tank (32) is fixedly arranged at one end inside the junction box main body (11), a piston rod (33) is slidably arranged inside the expansion tank (32), expansion gas is arranged inside the expansion tank (32), a separation plate (34) is fixedly arranged at the output end of the piston rod (33), and a rectangular perforation is arranged at one side of the separation plate (34).
5. The photovoltaic module junction box with high heat dissipation efficiency according to claim 1, wherein the cleaning mechanism comprises a brush rod (25), the brush rod (25) is fixedly arranged at one end of an installation shaft, a support frame is rotatably arranged on the installation shaft, the support frame is fixedly arranged inside one end of an air inlet pipe (20), a plurality of bristles are arranged on one side, close to a circular filter screen, of the brush rod (25), a sleeve wheel (27) is fixedly arranged at one end of the installation shaft, a conical friction wheel (26) is tightly attached to the inner side of the sleeve wheel (27), the conical friction wheel (26) is fixedly arranged at one end of a fixed shaft where an air inlet fan (23) is located, one side of a sliding plate (21) is fixedly connected with the output ends of a plurality of spring telescopic rods (22), and a plurality of the spring telescopic rods (22) are fixedly arranged inside the air inlet pipe (20).
6. The photovoltaic module junction box with high heat dissipation efficiency according to claim 5, wherein a first magnet and a second magnet are fixedly arranged at one end of the conical friction wheel (26) and one end inside the sleeve wheel (27), respectively.
7. The photovoltaic module junction box with high heat dissipation efficiency according to claim 1, wherein the heat dissipation mechanism comprises a fixed pipe (36) and a communicating pipe (39), a plurality of the fixed pipes (36) are communicated and arranged on the connecting pipe (28), a rotating plate (37) is arranged on an internal installation column of the fixed pipe (36) in a rotating mode, one end of a torsion spring (38) is fixedly connected inside the rotating plate (37), the other end of the torsion spring (38) is fixedly connected with the installation column, the communicating pipe (39) is fixedly arranged in a mounting hole on one side of the junction box main body (11) opposite to the fixed pipe (36), one end of the communicating pipe (39) is communicated with the air inlet pipe (20), an air outlet hole is formed in the communicating pipe (39), a sliding stop block (40) is arranged in the communicating pipe (39) in a sliding mode, one side of the sliding stop block (40) is fixedly connected with one end of a reset spring (41), and the other end of the reset spring (41) is fixedly connected with one side of an internal installation frame of one end of the communicating pipe (39).
8. The photovoltaic module junction box with high heat dissipation efficiency according to claim 1, wherein a plurality of circular through holes are formed on one side of each of the plurality of heat dissipation fins (19).

Description

Photovoltaic module junction box with high heat dissipation efficiency Technical Field The invention relates to the technical field of photovoltaic junction boxes, in particular to a photovoltaic module junction box with high heat dissipation efficiency. Background In the electric connection technology of a solar power generation system, a solar photovoltaic junction box is generally adopted to realize electric connection between a photovoltaic module and an inverter, and the electric connection technology has the main effects of connecting and protecting the solar photovoltaic module, connecting electric power generated by a solar battery with an external circuit, conducting current generated by the photovoltaic module, and when the junction box is in actual use, because larger current always flows in the junction box, more heat can be generated when the current flows through electric elements in the junction box, the junction box is generally of a closed structure, the heat dissipation performance of the junction box is poor, if the heat is accumulated in the junction box for a long time, the junction box is in a high-temperature environment for a long time, so that the service life of the junction box is shorter, and meanwhile, the potential safety hazard of the photovoltaic panel can be caused. CN219678409U discloses a photovoltaic junction box with a heat dissipation structure, the junction box is provided with a heat dissipation component, multiple groups of heat dissipation fans rotate simultaneously to rotationally exhaust gas in the junction box body, the gas outside the junction box body is rotationally brought into to exchange and dissipate heat, through the dustproof auxiliary component, inside and outside air needs to pass through a ventilation port and a ventilation opening when being replaced, the inside and outside air can be dustproof and filtered through the dustproof ventilation net when being replaced through the ventilation port and the ventilation opening, the dustproof ventilation net simply filters and intercepts large particle dust in the gas entering and exiting from the ventilation port and the ventilation opening, so that excessive dust is prevented from accumulating in the junction box body in the process of gas replacement, but the junction box needs staff to clean the dustproof ventilation net at regular time in actual use, thereby increasing the workload of staff, if the staff does not clean the dustproof ventilation net timely, thereby blocking the dustproof ventilation net, so that outside air can not radiate heat to the junction box, meanwhile, the junction box is provided with multiple groups of fans, and a control part for controlling the fans is arranged, so that the junction box is not required to always to radiate heat, and the heat dissipation source is wasted when the fans are in the heat dissipation state. Based on this, provide a photovoltaic module terminal box that radiating efficiency is high now, can eliminate the drawback that current device exists. Disclosure of Invention The invention aims to provide a photovoltaic module junction box with high heat dissipation efficiency, which is used for solving the problems that a dustproof ventilation net cannot be automatically cleaned and a heat dissipation fan cannot be controlled in the background art. In order to achieve the above purpose, the present invention provides the following technical solutions: The utility model provides a photovoltaic module terminal box that radiating efficiency is high, includes the terminal box main part, terminal box main part bottom is hugged closely and is equipped with sealing bottom plate, sealing bottom plate is fixed to be established in the inside bottom of outer case, sealing bottom plate is inside to be equipped with the fixed subassembly that fixes the terminal box main part, the outer case upper end is hugged closely and is equipped with the top cap, terminal box main part inside is equipped with a plurality of pencil, terminal box main part both sides are all fixed and are equipped with a plurality of fin, terminal box main part both sides and fin position are fixed intake pipe and outlet duct respectively, intake pipe and outlet duct one end respectively with terminal box main part one side connecting pipe both ends intercommunication, be equipped with air inlet fan and air outlet fan on the inside fixed axle of intake pipe and outlet duct one end respectively, fixed axle rotation is established on intake pipe and outlet duct internal fixation frame, terminal box main part one side is equipped with and is used for driving fixed axle pivoted drive assembly, the fixed filter screen that is equipped with of outlet duct one end, intake pipe one end slides and is equipped with the sliding plate, the sliding plate middle part is equipped with circular filter screen, sliding plate one side is equipped with the mechanism that is convenient for clear up circular filter screen, t