Junction box for high-temperature-resistant photovoltaic cell assembly

Abstract

The utility model relates to a junction box for a high-temperature-resistant photovoltaic cell assembly. The junction box comprises a shell, a shell cover is packaged on the top of the shell, a connector inserting hole is reserved in the side edge of the shell, main lug pieces integrally extend from the two sides of a bottom plate at the bottom of the shell, a heat gathering block is installed in the center of the bottom plate and makes heat conduction contact with an attaching plate through a heat conduction strip, and the attaching plate makes contact with the bottom plate through bolts. The utility model discloses a high-temperature-resistant junction box for a photovoltaic cell module. According to the junction box, a heat exchange mode of transmitting heat to the outside through a built-in heat conduction junction is adopted, heat in a photovoltaic module is collected in a centralized manner, and then the heat is transmitted to the outer side in the same manner to complete a high-temperature-resistant structure of unified heat exchange. The structure can be matched with a battery assembly to supply part of electric energy to a motor fan in the using process, and is matched with heat dissipation fins to complete the heat dissipation process. The automatic heat dissipation processing effect is achieved, and meanwhile the photovoltaic module can be matched for synchronous use in the operation process.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic junction boxes, and in particular relates to a junction box for a high-temperature resistant photovoltaic cell assembly. Background Art

[0002] With the continuous advancement of the pace of technological modernization, the application of photovoltaic technology has become more and more mature, and photovoltaic projects can be seen everywhere. The application of photovoltaic technology has greatly reduced the dependence on non-renewable resources, making people use more and more renewable resources, reducing carbon emissions, reducing environmental pollution, and thus protecting the earth's home. Photovoltaic junction boxes are one of the important components of photovoltaic technology. They can easily connect cables of different lengths and play a role in protecting cable connections. With the development of science and technology, high-temperature resistant photovoltaic junction boxes have developed to a great extent, and their types and quantities are also increasing day by day. Although there are many types and quantities of photovoltaic junction boxes on the market, most of them have poor high-temperature resistance. High temperature for a short time will cause damage to the junction box. At the same time, the heat dissipation efficiency of the device is not high, which greatly limits the scope of use of high-temperature resistant photovoltaic junction boxes.

[0003] Therefore, this application adopts a high-temperature resistant junction box for photovoltaic cell assemblies. The junction box adopts an external heat exchange method with built-in heat-conducting junction transmission to collect the heat inside the photovoltaic assembly and then transmit it to the outside to complete the high-temperature resistant structure of unified heat exchange. This structure can cooperate with the battery assembly during use to provide part of the electrical energy to the motor fan and cooperate with the heat dissipation fins to complete the heat dissipation process. It achieves an automated heat dissipation processing effect and can be adapted to be used synchronously during the operation of the photovoltaic assembly. Summary of the invention

[0004] In order to achieve the above object, the technical solution of the utility model is as follows:

[0005] A junction box for a high-temperature resistant photovoltaic cell assembly comprises a shell; a shell cover is encapsulated on the top of the shell, a connector jack is retained on the side of the shell, main ear pieces are integrally extended on both sides of the bottom plate of the shell, a heat collecting block is installed at the center of the bottom plate, the heat collecting block is in thermal contact with a bonding plate through a heat conducting strip, and the bonding plate is in bonding contact with the bottom plate through bolts.

[0006] Furthermore, ear pieces are integrally extended on both sides of the front side of the bonding plate, the ear pieces are structurally matched with the main ear pieces, the ear pieces and the main ear pieces are provided with mounting holes along the same vertical direction, and bolts are installed in the mounting holes.

[0007] Furthermore, the bonding plate is vertically mounted with a fastener along the upper end of the heat-conducting strip, and the fastener and the fastener groove are arranged on the upper end plane of the heat-collecting block.

[0008] Furthermore, a heat dissipation fin is installed on the back of the bonding plate, and the heat dissipation fin penetrates the bonding plate and forms an integrated connection structure with the heat conducting strip.

[0009] Furthermore, a motor fan is installed on the side of the heat dissipation fin.

[0010] Furthermore, mounting holes are provided on both sides of the heat collecting block, and two groups of positioning protrusions extend vertically from the front side of the heat conducting strip, and the positioning protrusions are guided and docked with the mounting holes.

[0011] The beneficial effects of the utility model are:

[0012] Compared with the prior art, this application uses a high-temperature resistant junction box for photovoltaic cell assemblies. The junction box uses an external heat exchange method with built-in heat-conducting junction transmission to collect the heat inside the photovoltaic assembly and then transmit it to the outside to complete the high-temperature resistant structure of unified heat exchange. This structure can cooperate with the battery assembly during use to provide part of the electrical energy to the motor fan and cooperate with the heat dissipation fins to complete the heat dissipation process. It achieves an automated heat dissipation processing effect and can be adapted to be used synchronously with the photovoltaic assembly during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic structural diagram of a junction box for a high temperature resistant photovoltaic cell assembly.

[0014] Figure 2 The utility model is a top view of a junction box bonding plate for a high temperature resistant photovoltaic cell assembly.

[0015] Figure 3 The utility model is a bottom view of a junction box bonding plate for a high temperature resistant photovoltaic cell assembly.

[0016] List of Figure Symbols:

[0017] 1 is the shell cover, 2 is the connector jack, 3 is the shell, 4 is the main ear piece, 5 is the buckle groove, 6 is the heat collecting block, 7 is the bottom plate, 8 is the fitting plate, 9 is the fastener, 10 is the heat conducting strip, 11 is the width ear piece, 12 is the positioning protrusion, 13 is the bolt, 14 is the motor fan, and 15 is the heat dissipation fin. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations. It should be understood that the following specific implementations are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0019] like Figure 1 , Figure 2 and Figure 3As shown, a junction box for high temperature resistant photovoltaic cell assembly includes a shell; a shell cover 1 is encapsulated on the top of the shell 3, a connector jack 2 is retained on the side of the shell 3, main ear pieces 4 are integrally extended on both sides of the bottom plate 7 of the shell 3, a heat collecting block 6 is installed in the center of the bottom plate 7, the heat collecting block 6 is in thermal contact with the bonding plate 8 through the thermal conductive strip 10, and the bonding plate 8 is in contact with the bottom plate 7 through the bolt 13. A heat dissipation fin plate 15 is installed on the back of the bonding plate 8, and the heat dissipation fin plate 15 passes through the bonding plate 8 and forms an integral connection structure with the thermal conductive strip 10. Among them, the present application collects the internal heat energy of the shell 3 uniformly through the heat collecting block 6, and in the process of collecting, cooperates with the thermal conductive strip 10 to complete the indirect heat transfer of heat energy, and finally completes the auxiliary heat dissipation process through the heat dissipation fins 15 external to the thermal conductive strip 10.

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, the two sides of the front of the bonding plate 8 are integrally extended with flange ear pieces 11, the flange ear pieces 11 are structurally matched with the main ear pieces 4, the flange ear pieces 11 and the main ear pieces 4 are provided with mounting holes in the same vertical direction, and bolts 13 are installed in the mounting holes. The bolts 13 cooperate with the upper and lower main ear pieces 4 and the flange ear pieces 11 to complete the fixed contact.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the bonding plate 8 is vertically installed with a fastener 9 along the upper end of the heat conducting strip 10, and the fastener 9 is connected with a fastener groove 5, and the fastener groove 5 is opened on the upper plane of the heat collecting block 6. Among them, the fastener groove 5 cooperates with the fastener 9 to complete the secondary fixed docking process, thereby increasing the structural strength of the equipment.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, a motor fan 14 is installed on the side of the heat dissipation fin plate 15. The motor fan 14 belongs to an auxiliary heat dissipation structure.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, the heat collecting block 6 has mounting holes on both sides, and the front of the heat conducting strip 10 has two sets of positioning protrusions 12 extending vertically, and the positioning protrusions 12 are guided and docked with the mounting holes. The positioning protrusions 12 and the guiding docking structure of the mounting holes can further enhance the heat conduction effect of the heat conducting strip 10 and avoid gaps in the indirect heat conduction process that affect the heat conduction efficiency.

[0024] It should be noted that the above content only illustrates the technical idea of ​​the utility model and cannot be used to limit the protection scope of the utility model. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model. These improvements and modifications all fall within the protection scope of the claims of the utility model.

Claims

1. A junction box for a high temperature resistant photovoltaic cell assembly, comprising a housing; wherein: The shell (3) is encapsulated with a shell cover (1) on the top, and a connector jack (2) is retained on the side of the shell (3). Main ear pieces (4) are integrally extended on both sides of a bottom plate (7) at the bottom of the shell (3). A heat collecting block (6) is installed at the center of the bottom plate (7). The heat collecting block (6) is in thermal contact with a bonding plate (8) via a heat conducting strip (10), and the bonding plate (8) is in bonding contact with the bottom plate (7) via bolts (13).

2. The junction box for a high temperature resistant photovoltaic cell assembly according to claim 1, characterized in that: Ear pieces (11) are integrally extended on both sides of the front side of the bonding plate (8); the ear pieces (11) are structurally matched with the main ear pieces (4); the ear pieces (11) and the main ear pieces (4) are provided with mounting holes along the same vertical direction; bolts (13) are installed in the mounting holes.

3. A junction box for a high temperature resistant photovoltaic cell assembly according to claim 2, characterized in that: A fastener (9) is vertically mounted on the bonding plate (8) along the upper end of the heat conducting strip (10); the fastener (9) is connected to a fastening groove (5); and the fastening groove (5) is formed on the upper plane of the heat collecting block (6).

4. A junction box for a high temperature resistant photovoltaic cell assembly according to claim 3, characterized in that: A heat dissipation fin plate (15) is installed on the back of the bonding plate (8), and the heat dissipation fin plate (15) penetrates the bonding plate (8) and the heat conducting strip (10) to form an integrated connection structure.

5. A junction box for a high temperature resistant photovoltaic cell assembly according to claim 4, characterized in that: A motor fan (14) is installed on the side of the heat dissipation fin plate (15).

6. The junction box for a high temperature resistant photovoltaic cell assembly according to claim 1, characterized in that: The heat collecting block (6) is provided with mounting holes on both sides, and two groups of positioning protrusions (12) extend vertically from the front side of the heat conducting strip (10), and the positioning protrusions (12) are guided and docked with the mounting holes.

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