Photovoltaic junction box

Abstract

The utility model discloses a photovoltaic junction box, which comprises a box body and a cover body, the cover body is connected above the box body through bolts, a heat dissipation window is arranged on the side surface of the box body in a penetrating manner, and a wiring board is arranged in the box body. According to the utility model, the heat dissipation plate, the heat dissipation fins and the heat conduction silica gel pads are adopted, during use, an external wire passes through the wiring port and is connected with the wiring board, then the cover body can be closed, the wiring board is fixed between the two groups of heat conduction silica gel pads, and the heat conduction silica gel pads transmit heat generated by the wiring board to the heat dissipation plate and the heat dissipation fins, so that the heat dissipation effect is improved; the heat-conducting silica gel pads cover the two sides of the wiring board, so that dust in the air cannot be attached to the wiring board, the problem of short circuit of a circuit cannot be caused, and the wiring board is convenient to use. And the practicability of the device is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic power generation technical field, concretely photovoltaic junction box. BACKGROUND

[0002] The photovoltaic junction box is the connector between the solar cell module and the solar charging control device, and its main role is to connect the power generated by the solar cell with the external circuit and conduct the current generated by the photovoltaic module.

[0003] Through the search, the application number is: CN202420538485.9 a photovoltaic power generation photovoltaic module wiring device relates to photovoltaic power generation technical field, the utility model discloses a double fastening measure is set up for the connection of photovoltaic line through the arc slot and the insulating elastic block, the photovoltaic line is clamped and fixed to the maximum extent to prevent the situation of falling off caused by unstable fixation, in addition, considering that the connector, diode and other equipment in the junction box will heat, the heat dissipation groove is opened, and in order to prevent the heat dissipation groove from being blocked, the brush is used to clean the heat dissipation groove when the cover plate is opened and closed.

[0004] In the above-mentioned utility model, only the heat dissipation groove is used to dissipate heat for the wiring structure inside the junction box, but some small dust can easily enter the junction box through the heat dissipation groove and adhere to the wiring structure, which may cause a short circuit of the line and a fire, etc.

[0005] For the problems in the related art, no effective solution has been proposed so far. UTILITY MODEL CONTENTS

[0006] (I) Technical problem solved

[0007] To solve the above-mentioned problems, the utility model provides a photovoltaic junction box, thereby solving the problems in the above-mentioned background technology.

[0008] (II) Technical scheme

[0009] To achieve the above-mentioned problems, the utility model adopts the following specific technical scheme:

[0010] The photovoltaic junction box comprises a box body and a cover body, the upper part of the box body is connected with the cover body through bolts, the side surface of the box body is provided with a heat dissipation window, the inside of the box body is provided with a wiring board, the two sides of the wiring board are provided with heat-conducting silica gel pads, the side surface of the heat-conducting silica gel pad is provided with a heat dissipation plate, one side of the heat dissipation plate is provided with heat dissipation fins, and the heat dissipation fins are provided with two groups, the two groups of heat dissipation fins are connected with the box body and the cover body respectively, and the side surface of the box body is provided with a wiring port.

[0011] Further, the cover and the box are both composed of a base layer and a reinforcing layer, the base layer is provided with two groups, and the reinforcing layer is arranged between the two groups of base layers.

[0012] Further, the reinforcing layer is made of A3 steel plate material.

[0013] Further, the base layer is made of ABS engineering plastic material.

[0014] Further, the lower surface of the cover is provided with a groove, and a sealing ring is arranged in the groove.

[0015] Further, the inner side of the box is fixedly provided with a mounting seat, the upper surface of the mounting seat is provided with a groove, a wiring board is arranged in the groove, and the wiring board is fixedly connected with the mounting seat through bolts.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the photovoltaic junction box has the following beneficial effects:

[0018] (1) In the utility model, the heat dissipation plate, the heat dissipation fin and the heat-conducting silica gel pad are adopted, when in use, the external wire is threaded through the wiring port and connected with the wiring board, then the cover is closed, the wiring board is fixed between the two heat-conducting silica gel pads, the heat-conducting silica gel pad transmits the heat generated by the wiring board to the heat dissipation plate and the heat dissipation fin, the contact area with air is increased, so that the cold air entering through the heat dissipation window is exchanged, thereby realizing the purpose of high-efficiency heat dissipation of the wiring board, and because the two heat-conducting silica gel pads cover two surfaces of the wiring board, the dust in the air cannot adhere to the wiring board, so that the problem of short circuit of the line is avoided, and the practicability of the device is greatly improved.

[0019] (2) In the utility model, the base layer and the reinforcing layer are adopted, the overall structure of the junction box is reinforced, so that the strength and the impact resistance are increased, the junction box can withstand greater external force impact, and damage caused by external force is avoided. ACCURATE DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0021] Figure 1 It is the structure diagram of the photovoltaic junction box provided by the utility model;

[0022] Figure 2It is the internal structure schematic diagram of the utility model;

[0023] Figure 3 It is the structure schematic diagram of the cover of the utility model;

[0024] Figure 4 It is the structure schematic diagram of the box body of the utility model.

[0025] In the drawing,

[0026] 1, box body;2, cover;3, heat dissipation window;4, heat dissipation fin;5, heat dissipation plate;6, heat-conducting silica gel pad;7, wiring board;8, wiring port;9, sealing ring;10, base layer;11, reinforcing layer;12, mounting seat. Specific implementation

[0027] To further illustrate each embodiment, the utility model provides with the drawing, these drawings are the part of the utility model disclosure, it mainly used to illustrate the embodiment, and can cooperate the relevant description of the specification to explain the operating principle of the embodiment, cooperates with reference these contents, and the ordinary skill in the art person should understand other possible implementation ways and the advantages of the utility model, the components in the drawing are not drawn according to scale, and similar component symbols are usually used to indicate similar components.

[0028] According to the embodiment of the utility model, photovoltaic junction box is provided.

[0029] The utility model is further illustrated by combining with the specific implementation and the drawing, as Figures 1-4 As shown in the utility model embodiment, photovoltaic junction box includes box body 1 and cover 2, and the upper portion of box body 1 is connected with cover 2 by bolt, and the side surface of box body 1 is provided with heat dissipation window 3, and the inside of box body 1 is provided with wiring board 7, and the both sides of wiring board 7 are provided with heat-conducting silica gel pad 6, and the side surface of heat-conducting silica gel pad 6 is provided with heat dissipation plate 5, and one side of heat dissipation plate 5 is provided with heat dissipation fin 4, and heat dissipation fin 4 is provided with two groups, and two groups of heat dissipation fin 4 are connected with box body 1 and cover 2 respectively, and the side surface of box body 1 is provided with wiring port 8.

[0030] In an embodiment, in use, the external wiring is connected through wiring port 8 and connected with wiring board 7, then cover 2 is closed, wiring board 7 is fixed between two groups of heat-conducting silica gel pad 6, and heat-conducting silica gel pad 6 transfers the heat generated by wiring board 7 to heat dissipation plate 5 and heat dissipation fin 4, increases the contact area with air, so as to exchange heat with the cold air coming through heat dissipation window 3, thereby realizing the purpose of high-efficiency heat dissipation of wiring board 7, and because two groups of heat-conducting silica gel pad 6 cover two sides of wiring board 7, dust in the air cannot adhere to wiring board 7, so as not to cause the problem of short circuit of line, greatly improves the practicability of the device.

[0031] Specifically, the cover body 2 and the box body 1 are both composed of a base layer 10 and a reinforcing layer 11, and the base layer 10 is provided in two groups, and the reinforcing layer 11 is arranged between the two groups of base layers 10.

[0032] In an embodiment, the base layer 10 and the reinforcing layer 11 are adopted to strengthen the overall structure of the junction box, thereby increasing the strength and impact resistance, so that it can withstand greater external force impact and avoid damage due to external force.

[0033] Specifically, the reinforcing layer 11 is made of A3 steel plate material.

[0034] In an embodiment, it has excellent strength and plasticity.

[0035] Specifically, the base layer 10 is made of ABS engineering plastic material.

[0036] In an embodiment, it has excellent heat resistance, weather resistance, dimensional stability and impact resistance.

[0037] Specifically, the lower surface of the cover body 2 is provided with a groove, and a sealing ring 9 is arranged in the groove.

[0038] In an embodiment, it is used to fill the gap between the cover body 2 and the box body 1 to improve the overall sealing performance of the junction box.

[0039] Specifically, the inner side of the box body 1 is fixed with a mounting seat 12, the upper surface of the mounting seat 12 is provided with a groove, and a wiring board 7 is arranged in the groove, and the wiring board 7 is fixedly connected with the mounting seat 12 through bolts.

[0040] In an embodiment, the mounting seat 12 and the sealing cover are arranged to fix the wiring board 7, so as to prevent the wiring board 7 from being dislocated when the cover body 2 is closed, thereby affecting the heat dissipation effect.

[0041] Working principle: in use, the external wire is inserted through the wiring port 8 and connected with the wiring board 7, and then the cover body 2 is closed, the wiring board 7 is fixed between the two groups of heat-conducting silica gel pads 6, the heat-conducting silica gel pads 6 transfer the heat generated by the wiring board 7 to the heat dissipation plate 5 and the heat dissipation fins 4, increase the contact area with air, so as to exchange heat with the cold air entering through the heat dissipation window 3, thereby realizing the purpose of high-efficiency heat dissipation of the wiring board 7, and because the two groups of heat-conducting silica gel pads 6 cover both sides of the wiring board 7, the dust in the air cannot adhere to the wiring board 7, thereby avoiding the problem of short circuit of the line, greatly improving the practicability of the device; the base layer 10 and the reinforcing layer 11 are adopted to strengthen the overall structure of the junction box, thereby increasing the strength and impact resistance, so that it can withstand greater external force impact and avoid damage due to external force.

[0042] In the utility model, unless another definite provision and limitation, the term "installation", "arrangement", "connection", "fixation", "screw connection" and so on term should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two element internal communication or two element's mutual action relation, unless another definite limitation, for the ordinary skill in the art, can understand the specific meaning of the above-mentioned term in the utility model according to specific circumstances.

[0043] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. Photovoltaic junction box comprising a box body (1) and a cover body (2), characterized in that The upper part of the box body (1) is connected with the cover body (2) through bolts, the side surface of the box body (1) is provided with the heat dissipation window (3), the inside of the box body (1) is provided with the wiring board (7), the two sides of the wiring board (7) are provided with the heat-conducting silica gel pad (6), the side surface of the heat-conducting silica gel pad (6) is provided with the heat dissipation plate (5), one side of the heat dissipation plate (5) is provided with the heat dissipation fin (4), the heat dissipation fin (4) is provided with two groups, the two groups of heat dissipation fins (4) are connected with the box body (1) and the cover body (2) respectively, and the side surface of the box body (1) is provided with the wiring port (8).

2. The photovoltaic junction box of claim 1, wherein, The cover body (2) and the box body (1) are both composed of the base layer (10) and the reinforcing layer (11), the base layer (10) is provided with two groups, and the reinforcing layer (11) is arranged between the two groups of base layers (10).

3. The photovoltaic junction box of claim 2, wherein, The reinforcing layer (11) is made of A3 steel plate material.

4. The photovoltaic junction box of claim 3, wherein, The base layer (10) is made of ABS engineering plastic material.

5. The photovoltaic junction box of claim 4, wherein, The lower surface of the cover body (2) is provided with a groove, and the groove is provided with a sealing ring (9).

6. The photovoltaic junction box of claim 5, wherein, The inside of the box body (1) is fixedly provided with the mounting seat (12), the upper surface of the mounting seat (12) is provided with a groove, the groove is provided with the wiring board (7), and the wiring board (7) is fixedly connected with the mounting seat (12) through bolts.

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