Solar photovoltaic junction box with active cooling function

Abstract

The utility model discloses a solar photovoltaic junction box with an active cooling function, which relates to the technical field of solar photovoltaic junction boxes and comprises a junction box main body, ventilation net grooves are arranged on the left side and the right side of the outer surface of the junction box main body, and a sealing cover is fixedly mounted above the surface of the junction box main body. The sealing cover is made of metal copper and attached to the surface of an electrical part in the junction box body, fins are fixedly arranged on the upper portion of the surface of the sealing cover, and a wiring mechanism is arranged on the front side of the outer surface of the junction box body and comprises a wire inserting opening fixedly formed in the front side of the junction box body. And the wire plugging port corresponds to the position of the jack of the internal electric device. Compared with the existing common solar photovoltaic junction box, the solar photovoltaic junction box with the active cooling function has the advantages that the patch cord can be extremely stably inserted into the patch cord port to be connected with an electric device, and the condition that the patch cord is loosened and falls off is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of solar photovoltaic junction boxes, in particular to a solar photovoltaic junction box with an active temperature reduction function. Background Art

[0002] At present, humans burn a large amount of minerals to obtain energy, which has caused global environmental pollution and ecological damage, posing a huge threat to human survival and development. Solar energy is an inexhaustible energy source that has no geographical restrictions, does not require transportation, is pollution-free, and is inexhaustible. In solar photovoltaic cell power generation systems, solar photovoltaic junction box components are usually used to achieve electrical connections between solar cell panels. The junction box is used to transmit the electrical energy converted from light energy to the power circuit.

[0003] For example, the public document with application number 201710315723.4 discloses a solar photovoltaic junction box, which is easy to use and can effectively export heat and hot air in the junction box, thereby greatly improving the stability and safety of the internal components of the junction box. However, during the use of the solar photovoltaic junction box, the plug wire is directly inserted into the junction box socket, and the connection is not firm enough. If a person accidentally touches and pulls it, it is easy to cause the plug wire to loosen or fall off, and it is difficult to ensure the stability of the connection between the plug wire and the junction box.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a solar photovoltaic junction box with an active cooling function is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a solar photovoltaic junction box with an active cooling function to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a solar photovoltaic junction box with an active cooling function, comprising a junction box body, the outer surface of which is provided with ventilation mesh grooves on both sides, a cover fixedly installed above the surface of the junction box body, the cover is made of metal copper and adheres to the surface of the electrical parts inside the junction box body, fins are fixedly arranged above the surface of the cover, and a wiring mechanism is arranged on the front side of the outer surface of the junction box body.

[0007] Preferably, the wiring mechanism comprises a wire socket fixedly mounted on the front side of the wiring box body, the wire socket corresponds to the position of the internal electrical component socket, and movable plates are rotatably provided on the upper and lower front ends of the inner surface of the wire socket.

[0008] Preferably, the wiring mechanism further comprises thrust springs disposed at both ends of the rear side of the movable plate, an inclined plate is fixedly mounted on the rear end of the thrust spring, and the inclined plate is fixedly disposed on the inner surface of the wire insertion port.

[0009] Preferably, a filter bottom plate is provided in the middle portion below the surface of the junction box body, and a heat dissipation mechanism is provided below the outer surface of the junction box body.

[0010] Preferably, the heat dissipation mechanism includes support frames fixedly installed on both left and right sides below the outer surface of the junction box body, a reciprocating screw and a guide rod fixedly installed in the groove body on the opposite side of the support frame, and a drive motor is provided at the rear end of the reciprocating screw.

[0011] Preferably, the heat dissipation mechanism further comprises an adjusting rod with the reciprocating screw rod and the guide rod surface being respectively threadedly connected and slidably connected, and a fan is fixedly arranged at the middle of the opposite end of the adjusting rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a wiring mechanism, a wire insertion port, a movable plate, a thrust spring and an inclined plate. When the plug wire is pulled outward, the movable plate will be driven to rotate forward, so that the pulling of the plug wire will pull the movable plate to rotate and clamp. The greater the pulling force, the stronger the clamping force. The plug wire can be inserted into the plug socket and connected to the electrical device extremely stably, effectively preventing the plug wire from loosening and falling off.

[0014] 2. The utility model is provided with a heat dissipation mechanism, a support frame, a reciprocating screw rod, a guide rod, a driving motor, an adjusting rod and a fan. The reciprocating screw rod is driven by the driving motor to rotate. The adjusting rod and the fan are formed as a whole and can be moved back and forth in a circular motion under the limit of the right guide rod. The position of the fan for blowing and dissipating air can be adjusted, and the junction box can be blown and dissipated in all directions to improve the heat dissipation efficiency and avoid the situation where the fan blowing position is fixed, resulting in an uneven heat dissipation surface;

[0015] 3. The utility model has a cover and fins. The cover is made of metal copper, which can effectively absorb the heat of the internal electrical components, exchange heat with the air, and use the fins to improve the heat exchange efficiency of the cover, thereby further improving the heat dissipation performance of the junction box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the wiring mechanism of the utility model;

[0018] Figure 3This is a schematic diagram of the cross-sectional structure of the main part of the junction box of the utility model;

[0019] Figure 4 It is a partial cross-sectional structural schematic diagram of the heat dissipation mechanism of the utility model.

[0020] In the figure: 1. terminal box body; 2. ventilation mesh slot; 3. cover; 4. fin; 5. terminal mechanism; 501. wire plug port; 502. movable plate; 503. thrust spring; 504. inclined plate; 6. filter bottom plate; 7. heat dissipation mechanism; 701. support frame; 702. reciprocating screw rod; 703. guide rod; 704. drive motor; 705. adjustment rod; 706. fan. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-Figure 2 As shown, a solar photovoltaic junction box with an active cooling function includes a junction box body 1, and ventilation mesh grooves 2 are provided on the left and right sides of the outer surface of the junction box body 1. A cover 3 is fixedly installed on the surface of the junction box body 1, and the cover 3 is made of metal copper and adheres to the surface of the electrical component inside the junction box body 1. Fins 4 are fixedly arranged on the surface of the cover 3, and a wiring mechanism 5 is arranged on the front side of the outer surface of the junction box body 1. The wiring mechanism 5 includes a plug port 501 fixedly installed on the front side of the junction box body 1, and the plug port 501 corresponds to the position of the internal electrical component jack. The inner surface of the plug port 501 is rotatably provided with movable plates 502 at the front ends of the upper and lower sides. The wiring mechanism 5 also includes thrust springs 503 provided at both ends of the rear side of the movable plate 502, and the rear end of the thrust spring 503 is fixedly installed with an inclined plate 504, and the inclined plate 504 is fixedly arranged on the inner surface of the plug port 501.

[0023] Furthermore, the cover 3 is made of metal copper, and by utilizing the thermal conductivity of copper, it can effectively absorb the heat of the internal electrical components and exchange heat with the air.

[0024] Furthermore, the fins 4 are in the shape of raised plates, which enlarge the contact surface with the air and are fixed to the cover 3, so as to assist the cover 3 in heat conduction and heat dissipation, thereby improving the heat exchange efficiency.

[0025] Furthermore, the ventilation mesh slot 2 ensures normal air circulation inside and outside the junction box body 1 .

[0026] Furthermore, the surface of the movable plate 502 is covered with a rubber sleeve, which can not only avoid scratching the patch cord, but also increase the friction between the movable plate 502 and the patch cord, so that the movable plate 502 can rotate better following the pulling of the patch cord.

[0027] Furthermore, the vertical lengths of the two movable plates 502 on the upper and lower sides are just enough to close the plug port 501. Therefore, when the plug wire enters the plug port 501, a certain space will be occupied, and the rotation and reset space of the movable plate 502 will be limited. It can only be tilted backward and fit up and down on the surface of the plug port 501.

[0028] Furthermore, the thrust spring 503 provides a continuous thrust, so that the movable plate 502 can fit the surface of the plug wire more closely and stably.

[0029] Furthermore, the inclined plate 504 allows the assembly angle of the thrust spring 503 to have a certain inclination angle, so that when the thrust spring 503 is compressed or extended, it can better match the rotation arc path of the movable plate 502.

[0030] Furthermore, if the patch cord is pulled outward, it will pull the movable plate 502 that is in contact with the surface to rotate toward the front end and restore to a vertical state. However, the patch cord itself occupies a certain space, which results in the space required for the movable plate 502 to be reset being blocked, that is, it cannot be completely rotated forward to be reset, and can only fit more closely to the surface of the patch cord. The greater the pulling force of the patch cord, the greater the rotational clamping force of the movable plate 502, thereby effectively preventing the patch cord from loosening and falling off.

[0031] like Figure 3-Figure 4 As shown, a filter bottom plate 6 is provided in the middle part below the surface of the junction box body 1, and a heat dissipation mechanism 7 is provided below the outer surface of the junction box body 1. The heat dissipation mechanism 7 includes support frames 701 fixedly installed on both the left and right sides below the outer surface of the junction box body 1, and a reciprocating screw 702 and a guide rod 703 are respectively rotatably provided from left to right in the groove body on the opposite side of the support frame 701, and a driving motor 704 is provided at the rear end of the reciprocating screw 702. The heat dissipation mechanism 7 also includes an adjusting rod 705 that is threadedly connected and slidably connected to the surfaces of the reciprocating screw 702 and the guide rod 703, and a fan 706 is fixedly provided in the middle part of the opposite end of the adjusting rod 705.

[0032] Furthermore, the filter bottom plate 6 can block dust from entering, and can also ensure that the air blown by the fan 706 can enter the interior of the junction box body 1 for heat dissipation.

[0033] Furthermore, the adjusting rod 705 and the fan 706 form a whole, so that when the reciprocating screw rod 702 rotates, it can be limited by the guide rod 703 to perform a back-and-forth reciprocating cyclic movement.

[0034] Furthermore, the fan 706 moves in a circular motion so that the position of the air blowing and heat dissipation can be adjusted, and the junction box can be cooled by air blowing in all directions, thereby improving the heat dissipation efficiency and avoiding the situation where the air blowing position of the fan 706 is fixed, resulting in an uneven heat dissipation surface.

[0035] Working principle: When using the solar photovoltaic junction box with active cooling function, first, insert the plug wire into the plug port 501, and the plug wire pushes the movable plate 502 to squeeze the thrust spring 503 and rotate it to the rear side to open the plug port 501, so that it can be connected to the electrical device socket normally. After the connection, the movable plate 502 will rotate and reset under the action of the thrust spring 503, and the volume of the plug wire occupies a certain space inside the plug port 501, resulting in the movable plate 502 being unable to completely rotate and reset, and can only maintain a state of tilting toward the middle of the rear side under the thrust of the thrust spring 503, and tightly fit to the surface of the plug wire, so that when the plug wire is pulled outward, it will drive the movable plate 502 to rotate forward, so that the plug wire pulling will pull the movable plate 502 for rotation and clamping, and the greater the pulling force, the stronger the clamping force, which can make the plug wire extremely In order to stably insert the socket 501 and connect it with the electrical components, after the connection is completed, when the junction box body 1 is working, the heat emitted by the internal electrical components is absorbed by the cover 3 and exchanged with the air for heat dissipation, and the fins 4 are used to improve the heat exchange efficiency of the cover 3, so as to passively dissipate the heat of the junction box body 1, and simultaneously start the fan 706. The wind of the fan 706 will enter the inside of the junction box body 1 through the filter bottom plate 6 for active air blowing and heat dissipation. The reciprocating screw rod 702 is driven to rotate by the driving motor 704. The whole formed by the adjusting rod 705 and the fan 706 can move back and forth in a cycle under the limit of the right guide rod 703. The position of the fan 706 for air blowing and heat dissipation can be adjusted, so that the junction box can be blown and cooled in all directions to improve the heat dissipation efficiency. This is the working principle of the solar photovoltaic junction box with active cooling function.

Claims

1. A solar photovoltaic junction box with active cooling function, comprising a junction box body (1), characterized in that: The left and right sides of the outer surface of the junction box body (1) are provided with ventilation mesh grooves (2); a cover (3) is fixedly mounted above the surface of the junction box body (1); the cover (3) is made of copper and adheres to the surface of the electrical parts inside the junction box body (1); fins (4) are fixedly arranged above the surface of the cover (3); and a wiring mechanism (5) is arranged on the front side of the outer surface of the junction box body (1).

2. The solar photovoltaic junction box with active cooling function according to claim 1, characterized in that: The wiring mechanism (5) comprises a wire insertion port (501) fixedly mounted on the front side of the wiring box body (1), the wire insertion port (501) corresponding to the position of the internal electrical component jack, and movable plates (502) are rotatably provided at the upper and lower front ends of the inner surface of the wire insertion port (501).

3. The solar photovoltaic junction box with active cooling function according to claim 1, characterized in that: The wiring mechanism (5) also includes thrust springs (503) disposed at both ends of the rear side of the movable plate (502), a slanted plate (504) fixedly mounted at the rear end of the thrust spring (503), and the slanted plate (504) fixedly disposed on the inner surface of the wiring port (501).

4. The solar photovoltaic junction box with active cooling function according to claim 1, characterized in that: A filter bottom plate (6) is provided in the middle below the surface of the junction box body (1), and a heat dissipation mechanism (7) is provided below the outer surface of the junction box body (1).

5. The solar photovoltaic junction box with active cooling function according to claim 4, characterized in that: The heat dissipation mechanism (7) comprises a support frame (701) fixedly mounted on both left and right sides below the outer surface of the junction box body (1), a reciprocating screw (702) rotatably mounted from left to right and a guide rod (703) fixedly mounted in a groove body on the opposite side of the support frame (701), and a driving motor (704) mounted at the rear end of the reciprocating screw (702).

6. The solar photovoltaic junction box with active cooling function according to claim 4, characterized in that: The heat dissipation mechanism (7) further comprises an adjustment rod (705) which is respectively threadedly connected and slidably connected to the surfaces of the reciprocating screw rod (702) and the guide rod (703), and a fan (706) is fixedly arranged at the middle of the opposite end of the adjustment rod (705).

Images