Photovoltaic junction box with high-heat-dissipation insulating sheet

Abstract

The utility model discloses a photovoltaic junction box with a high heat dissipation insulating sheet, which comprises a box body, a placing groove is arranged in the box body, a photovoltaic box is arranged in the placing groove, a plurality of heat conduction blocks which are arranged in a linear array are symmetrically arranged on two sides of the photovoltaic box, a heat conduction plate is arranged on the plurality of heat conduction blocks, the heat conduction plate is arc-shaped, and the heat conduction plate is provided with a plurality of insulating sheets. The two sides of the box body are symmetrically provided with a plurality of heat dissipation grooves which are arranged in a linear array. According to the photovoltaic junction box with the high-heat-dissipation insulating sheet, the photovoltaic box is fixed and protected through the placement grooves in the box body, and heat of the photovoltaic box is conducted through the heat conduction blocks on the two sides of the photovoltaic box, so that the heat of the photovoltaic box is reduced, and the heat dissipation efficiency of the photovoltaic box is improved. The heat is further transmitted through the heat conduction plate on the heat conduction block, and the heat is transmitted out through the heat dissipation grooves in the two sides of the box body.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic junction boxes, in particular to a photovoltaic junction box with a high heat dissipation insulating sheet. Background Art

[0002] The photovoltaic junction box is a connector between the solar cell module and the solar charging control device. Its main function is to connect the power generated by the solar cell to the external line and conduct the current generated by the photovoltaic module. Common types include crystalline silicon junction boxes, amorphous silicon junction boxes, curtain wall junction boxes, etc. It consists of three parts: the box body, cables and connectors. The box body is usually made of weather-resistant materials to adapt to the use of harsh outdoor environmental conditions. It has certain high temperature resistance, UV resistance and sealing properties. In addition, the photovoltaic junction box is equipped with a diode to prevent the battery from being reversely discharged at night or on cloudy days, ensuring the stability and safety of the output voltage of the photovoltaic panel.

[0003] According to the publication (announcement) number: CN207939469U, the publication (announcement) date: 2018-10-02, a photovoltaic junction box is disclosed, which includes a box body, a heat dissipation part and a connecting component, the box body is provided with a heat dissipation chamber, a conductive chamber and a photovoltaic welding chamber, the heat dissipation chamber and the conductive chamber are sealed and isolated by a seal, and the heat dissipation chamber is exposed to the air; the heat dissipation part is installed on the heat dissipation chamber; the connecting component includes a diode and a conductor, the diode is in contact with the heat dissipation part so that the heat dissipation part dissipates heat to the diode, the conductor has a main connecting part and a busbar connecting part, the main connecting part of the diode and the conductor is placed in the conductive chamber, and the busbar connecting part extends into the photovoltaic welding chamber.

[0004] It is known from the above patents and prior art that when the photovoltaic junction box is in use, it is necessary to connect the solar panels and the solar control device, and then the existing ones are air cooling or water circulation. Air cooling is to increase the flow rate of wind through a fan, and cool down during the process. This method has low cooling efficiency. Utility Model Content

[0005] The utility model aims to provide a photovoltaic junction box with a high heat dissipation insulating sheet, thereby improving the heat dissipation of the photovoltaic junction box.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photovoltaic junction box with a high heat dissipation insulating sheet, comprising a box body, a placement groove is opened in the box, a photovoltaic box is arranged in the placement groove, a plurality of heat-conducting blocks arranged in a linear array are symmetrically arranged on both sides of the photovoltaic box, a heat-conducting plate is arranged on the plurality of heat-conducting blocks, the heat-conducting plate is arc-shaped, and a plurality of heat-dissipating grooves arranged in a linear array are symmetrically opened on both sides of the box body.

[0007] Preferably, a fixing frame is provided on the heat conducting plate, a shaft is provided on the fixing frame, a plurality of fan blades arranged in a circular array are provided on the shaft, and the fan blades face the heat dissipation slot.

[0008] Preferably, a dust shield is provided on the heat dissipation slot, and the dust shield is arc-shaped.

[0009] Preferably, the box body is provided with a plurality of slots arranged in a linear array, and the slots are connected to the photovoltaic box.

[0010] Preferably, a fixing assembly is arranged in the notch, and the fixing assembly comprises a fixing plate symmetrically arranged in the notch, and an elastic member is arranged at the bottom of the fixing plate.

[0011] Preferably, an arc-shaped member is provided at the bottom of the elastic member, a buffer plate is provided between the fixing plate and the arc-shaped member, and the buffer plate is composed of a plurality of V-shapes.

[0012] Preferably, the elastic member is a spring.

[0013] In the above technical scheme, the utility model provides a photovoltaic junction box with a high heat dissipation insulating sheet, which has the following beneficial effects: the photovoltaic box is fixed and protected by the placement groove in the box body, the heat of the photovoltaic box is conducted by the heat conductive blocks on both sides of the photovoltaic box to reduce the heat of the photovoltaic box, the heat is further transferred by the heat conductive plates on the heat conductive blocks, and the heat is transferred out through the heat dissipation grooves on both sides of the box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 The overall structural diagram provided for the embodiment of the utility model;

[0016] Figure 2 A schematic cross-sectional structure diagram of a fixing assembly provided in an embodiment of the utility model.

[0017] Description of reference numerals:

[0018] 1. Box body; 11. Placement slot; 12. Notch; 13. Photovoltaic box; 14. Heat conduction block; 15. Heat conduction plate; 16. Fixed frame; 17. Axle; 18. Fan blade; 19. Heat dissipation slot; 20. Dust shield; 10. Fixed assembly; 100. Fixed plate; 101. Elastic member; 102. Buffer plate; 103. Arc member. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] like Figure 1-2 As shown, a photovoltaic junction box with a high heat dissipation insulating sheet includes a box body 1, a placement groove 11 is opened in the box body, a photovoltaic box 13 is arranged in the placement groove 11, and a plurality of heat-conducting blocks 14 arranged in a linear array are symmetrically arranged on both sides of the photovoltaic box 13, and a heat-conducting plate 15 is arranged on the plurality of heat-conducting blocks 14, and the heat-conducting plate 15 is arc-shaped. A plurality of heat dissipation grooves 19 arranged in a linear array are symmetrically opened on both sides of the box body 1.

[0021] Specifically, when in use, the photovoltaic box 13 is placed in the box body 1. Then, when the photovoltaic box 13 transfers heat through its internal self-heating, the heat will enter the heat conductive block 14. Then, the heat of the heat conductive block 14 will enter the heat conductive plate 15. The heat on the heat conductive plate 15 will be transferred to the outside through the heat dissipation grooves 19 on both sides of the box body 1, and the photovoltaic box 13 will be cooled down at the same time.

[0022] In the above scheme, the photovoltaic box 13 is fixed and protected by the placement groove 11 in the box body 1, the heat of the photovoltaic box 13 is conducted by the heat conductive blocks 14 on both sides of the photovoltaic box 13 to reduce the heat of the photovoltaic box 13, the heat is further transferred by the heat conductive plates 15 on the heat conductive blocks 14, and the heat is transferred out through the heat dissipation grooves 19 on both sides of the box body 1.

[0023] As an embodiment further provided by the present invention, according to Figure 1 and Figure 2 As shown, a fixing frame 16 is disposed on the heat conducting plate 15 , a shaft 17 is disposed on the fixing frame 16 , a plurality of fan blades 18 arranged in a circular array are disposed on the shaft 17 , and the fan blades 18 face the heat dissipation slots 19 .

[0024] Specifically, after the heat enters the heat conducting plate 15, the shaft 17 in the fixing frame 16 is started, and the shaft 17 drives the fan blades 18 to rotate, and the heat on the heat conducting plate 15 is blown to the outside through the heat dissipation grooves 19 for heat dissipation.

[0025] As an embodiment further provided by the present invention, according to Figure 1 and Figure 2As shown, a dust shield 20 is provided on the heat dissipation slot 19, and the dust shield 20 is arc-shaped.

[0026] Specifically, the arc-shaped dust shield 20 filters external dust to prevent dust from entering the photovoltaic box 13 and causing excessive dust on its internal components.

[0027] As an embodiment further provided by the present invention, according to Figure 1 and Figure 2 As shown, the box body 1 is provided with a plurality of slots 12 arranged in a linear array, and the slots 12 are connected to the photovoltaic box 13 .

[0028] Specifically, the solar cell assembly and the solar charging control device are connected via the notch 12 .

[0029] As an embodiment further provided by the present invention, according to Figure 1 and Figure 2 As shown, a fixing assembly 10 is disposed in the slot 12 , and the fixing assembly 10 includes a fixing plate 100 symmetrically disposed in the slot 12 , and an elastic member 101 is disposed at the bottom of the fixing plate 100 .

[0030] Furthermore, an arc-shaped member 103 is disposed at the bottom of the elastic member 101 , and a buffer plate 102 is disposed between the fixing plate 100 and the arc-shaped member 103 , and the buffer plate 102 is composed of a plurality of V-shapes.

[0031] Specifically, when the connecting wire is inserted into the slot 12 , it will abut against the arc-shaped member 103 , and the elastic member 101 is stressed and pushed downward to fix the connecting wire, while the buffer plate 102 is stretched open, and the connecting wire is located in the slot 12 .

[0032] Working principle: When in use, the photovoltaic box 13 is placed in the box body 1, and then when the photovoltaic box 13 transfers heat through its internal self-heating, the heat will enter the heat-conducting block 14, and then the heat of the heat-conducting block 14 will enter the heat-conducting plate 15. After the heat enters the heat-conducting plate 15, the shaft 17 in the fixed frame 16 is started, and the shaft 17 drives the fan blades 18 to rotate, and the heat on the heat-conducting plate 15 is blown to the outside through the heat dissipation groove 19 to dissipate heat and cool the photovoltaic box 13. At the same time, when the connecting wire is plugged into the slot 12, it will contact the arc-shaped member 103, and at the same time, the elastic member 101 is subjected to force and pushed downward to fix the connecting wire. At the same time, the buffer plate 102 is opened, and the connecting wire is located in the slot 12.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A photovoltaic junction box with a high heat dissipation insulating sheet, characterized in that: The invention comprises a box body (1) having a placement groove (11) formed therein, a photovoltaic box (13) being arranged in the placement groove (11), a plurality of heat-conducting blocks (14) arranged in a linear array being symmetrically arranged on both sides of the photovoltaic box (13), a heat-conducting plate (15) being arranged on the plurality of heat-conducting blocks (14), the heat-conducting plate (15) being arc-shaped, and a plurality of heat-dissipating grooves (19) arranged in a linear array being symmetrically formed on both sides of the box body (1).

2. A photovoltaic junction box with a high heat dissipation insulating sheet according to claim 1, characterized in that: The heat conducting plate (15) is provided with a fixing frame (16), the fixing frame (16) is provided with a shaft (17), the shaft (17) is provided with a plurality of fan blades (18) arranged in a circular array, and the fan blades (18) face the heat dissipation slot (19).

3. A photovoltaic junction box with a high heat dissipation insulating sheet according to claim 2, characterized in that: A dust shield (20) is provided on the heat dissipation groove (19), and the dust shield (20) is arc-shaped.

4. A photovoltaic junction box with a high heat dissipation insulating sheet according to claim 1, characterized in that: The box body (1) is provided with a plurality of slots (12) arranged in a linear array, and the slots (12) are connected to the photovoltaic box (13).

5. A photovoltaic junction box with a high heat dissipation insulating sheet according to claim 4, characterized in that: A fixing assembly (10) is arranged in the notch (12), and the fixing assembly (10) comprises a fixing plate (100) symmetrically arranged in the notch (12), and an elastic member (101) is arranged at the bottom of the fixing plate (100).

6. A photovoltaic junction box with a high heat dissipation insulating sheet according to claim 5, characterized in that: An arc-shaped piece (103) is arranged at the bottom of the elastic piece (101), a buffer plate (102) is arranged between the fixing plate (100) and the arc-shaped piece (103), and the buffer plate (102) is composed of a plurality of V-shaped shapes.

7. A photovoltaic junction box with a high heat dissipation insulating sheet according to claim 5, characterized in that: The elastic member (101) is a spring.

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