Conductive structure of photovoltaic solar junction box and photovoltaic solar junction box

Abstract

The utility model provides a conductive structure of a photovoltaic solar junction box and the photovoltaic solar junction box, relates to the field of photovoltaic technology, and aims to solve the technical problems that in the prior art, a conductive structure in a junction box used in the existing photovoltaic industry generally adopts a red copper structure, so that the junction box cannot be damaged under the condition that a diode is heated due to overlarge current of the junction box. The technical problems that red copper absorbs heat but is poor in heat dissipation effect, the temperature of a diode is too high, and the cost of copper materials is too high are solved, the conductive structure comprises a first conductive body and a second conductive body which are symmetrically arranged, the first conductive body and the second conductive body each comprise a body and a heat dissipation structure, and each body comprises first conductive metal; the heat dissipation structure is arranged on the body and comprises second conductive metal. The photovoltaic solar junction box comprises the conductive structure and the diode, and has the beneficial effects that better conduction and heat dissipation can be carried out through the heat dissipation structure, so that stable operation of a photovoltaic circuit is ensured, and the service life of the photovoltaic solar junction box is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and in particular to a conductive structure and a photovoltaic solar junction box. Background Technology

[0002] Global photovoltaic (PV) installations continue to increase, with various high-power modules emerging in large numbers. Related technologies such as half-cell, bifacial, shingled, multi-busbar, and large-size modules have also matured and been applied. These technological advancements have significantly improved the conversion efficiency of PV cells and reduced the investment and operating costs of PV systems. With the advent of high-power modules, higher requirements have been placed on junction box current. In the research and application of high-current junction boxes, the internal metal conductive connectors become crucial, affecting the overcurrent capacity of the junction box and the heat dissipation capacity of the diodes.

[0003] The applicant has discovered that the prior art has at least the following technical problems:

[0004] Currently, the conductive structure inside the junction boxes used in the photovoltaic industry is generally made of copper. When the diodes in the junction box are heated by excessive current, copper absorbs heat but has poor heat dissipation, resulting in excessively high diode temperatures and high copper material costs. Utility Model Content

[0005] The purpose of this utility model is to provide a conductive structure for a photovoltaic solar panel junction box and a photovoltaic solar panel junction box itself, to solve the technical problems existing in the current photovoltaic industry where the conductive structure inside the junction box is generally made of copper. In cases of high current and diode heating, copper absorbs heat but has poor heat dissipation, leading to excessively high diode temperatures and high copper material costs. The various technical effects of the preferred technical solutions provided by this utility model are detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This utility model provides a conductive structure for a photovoltaic solar junction box, comprising a first conductive body and a second conductive body symmetrically arranged. Both the first and second conductive bodies include a body and a heat dissipation structure.

[0008] The body includes a first conductive metal;

[0009] The heat dissipation structure is disposed on the body and includes a second conductive metal.

[0010] Preferably, the body is provided with a groove for limiting the heat dissipation structure, the heat dissipation structure is disposed in the groove, and the height dimension of the heat dissipation structure is greater than the depth dimension of the groove.

[0011] Preferably, a stop structure is provided on the outer periphery of the body, and the end face of the heat dissipation structure abuts against the stop structure.

[0012] Preferably, the width of the heat dissipation structure is the same as the width of the body.

[0013] Preferably, the length of one side of the heat dissipation structure is the same as the length of the main body, and the length of the other side is not less than 1 / 2 of the length of the main body.

[0014] Preferably, the heat dissipation structure includes a J-shaped edge.

[0015] Preferably, the first conductive metal comprises copper, and the second conductive metal comprises aluminum.

[0016] A photovoltaic solar junction box includes a conductive structure and a diode, wherein a first conductive body and a second conductive body are symmetrically connected to both sides of the diode.

[0017] The conductive structure of the photovoltaic solar junction box provided by this utility model includes a first conductive body and a second conductive body. Both the first conductive body and the second conductive body include a body and a heat dissipation structure. Heat dissipation is achieved by setting a conductive metal of a different material on the body. During use, the heat of the diode is conducted to the heat dissipation structure through the body. The heat dissipation structure provides better conduction and heat dissipation, thereby ensuring the stable operation of the photovoltaic circuit and improving the service life of the photovoltaic solar junction box.

[0018] The photovoltaic solar junction box provided by this utility model includes the conductive structure and diode of the photovoltaic solar junction box described above. The first conductive body and the second conductive body are symmetrically connected to both sides of the diode. The heat of the diode is conducted to the heat dissipation structure through the body, and the heat dissipation structure provides better conduction and heat dissipation to ensure the stable operation of the photovoltaic circuit and improve the service life of the photovoltaic solar junction box. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the conductive structure of an embodiment of the photovoltaic solar junction box of this utility model;

[0021] Figure 2 yes Figure 1 A structural diagram from another angle;

[0022] Figure 3 This is a schematic diagram of the conductive structure of the main body of the photovoltaic solar junction box of this utility model;

[0023] Figure 4 This is a schematic diagram of the heat dissipation structure in the conductive structure of the photovoltaic solar junction box of this utility model.

[0024] In the figure: 1. First conductive body; 2. Second conductive body; 3. Diode; 11. Body; 12. Heat dissipation structure; 110. Groove; 111. Stop structure; 112. Protrusion. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Figure 1 This is a structural schematic diagram of this embodiment. Figure 2 yes Figure 1 Another structural diagram, such as Figure 1 and Figure 2 As shown, this utility model provides a conductive structure for a photovoltaic solar junction box. The conductive structure includes a first conductive body 1 and a second conductive body 2. In use, the first conductive body 1 and the second conductive body 2 are symmetrically arranged on both sides of the diode 3.

[0027] Specifically, both the first conductive body 1 and the second conductive body 2 include a body 11 and a heat dissipation structure 12. The body 11 includes a first conductive metal; the heat dissipation structure 12 is disposed on the body 11 and includes a second conductive metal. In this embodiment, both the body 11 and the heat dissipation structure 12 are made of sheet metal, and the body 11 and the heat dissipation structure 12 use different conductive metals. In use, the heat from the diode 3 is conducted to the heat dissipation structure 12 through the body 11, and the heat dissipation structure 12 provides better conduction and heat dissipation, thereby ensuring the stable operation of the photovoltaic circuit and improving the service life of the photovoltaic solar junction box.

[0028] As an optional implementation method, such as Figure 1 and Figure 2 As shown, a stop structure 111 is provided on the outer periphery of the body 11, and the end face of the heat dissipation structure 12 abuts against the stop structure 111.

[0029] It is understood that in this embodiment, the stop structure 111 and the body 11 are integrally formed. Specifically, the stop structure 111 is formed by bending upward along the periphery of the body 11. By setting the stop structure 111 on the outer periphery of the body 11 and having the end face of the heat dissipation structure 12 abut against the stop structure 111, the heat dissipation structure 12, except for its bottom surface with the largest cross-section which contacts the body 11, is simultaneously released from the stop structure 111. This increases the contact area between the heat dissipation structure 12 and the body 11, resulting in better heat dissipation.

[0030] Figure 3 This is a schematic diagram of the structure of the main body in this embodiment. Figure 4 This is a schematic diagram of the heat dissipation structure in this embodiment, as shown below. Figure 3 and Figure 4 As shown, a groove 110 for limiting the heat dissipation structure 12 is provided on the main body 11. The heat dissipation structure 12 is disposed in the groove 110, and the height dimension of the heat dissipation structure 12 is greater than the depth dimension of the groove 110.

[0031] Specifically, in this embodiment, a protrusion 112 is provided on the surface of the body 11. The protrusion 112 can be formed by stamping, that is, the protrusion 112 and the body are an integral structure. The groove structure formed between the outer periphery of the protrusion 112 and the stop structure 111 is the groove 110. This setting can avoid the body 11 being too thick, resulting in material waste, and can also save the grooving process.

[0032] By providing a groove 110 on the body 11 for limiting the heat dissipation structure 12, the heat dissipation structure 12 can be limited. At the same time, the heat dissipation structure 12 and the protrusion 112 also abut against each other, increasing the contact between the heat dissipation structure 12 and the body 1, which can improve the heat dissipation effect.

[0033] As an optional implementation, the width of the heat dissipation structure 12 is the same as the width of the body 11. One side of the heat dissipation structure 12 has the same length as the body 11, and the length of the other side is not less than half the length of the body 11. In this embodiment, the heat dissipation structure 12 includes a J-shaped edge. Thus, without affecting the use of the body 11, the contact area between the heat dissipation structure 12 and the body 11 can be increased as much as possible to improve the heat dissipation effect.

[0034] As an optional implementation, in this embodiment, the first conductive metal includes copper and the second conductive metal includes aluminum.

[0035] Both copper and aluminum are metals with excellent thermal conductivity, with copper exhibiting a particularly high thermal conductivity. This gives the copper-aluminum composite a significant advantage in efficient heat transfer. Furthermore, copper has good corrosion resistance, while aluminum can form a dense oxide film on its surface, also providing some corrosion resistance. The combination of these two properties makes copper-aluminum composites perform exceptionally well in harsh environments.

[0036] In this embodiment, both the first conductive body 1 and the second conductive body 2 are copper-aluminum structures. The effective structure of copper and aluminum is used for conductive heat dissipation. When the junction box is operating with a large current, the heat of the junction box diode can be conducted to the aluminum profile through the copper plate. By utilizing the excellent heat dissipation characteristics of aluminum, the operating temperature of the junction box is reduced, which can ensure the normal operation of the circuit and extend the service life of the photovoltaic solar junction box.

[0037] This embodiment also provides a photovoltaic solar junction box, including the conductive structure of the aforementioned photovoltaic solar junction box and a diode 3. A first conductive body 11 and a second conductive body 12 are symmetrically connected to both sides of the diode 3. The heat from the diode 3 in this photovoltaic solar junction box can be conducted to the heat dissipation structure 12 through the body 11, and the heat dissipation structure 12 provides better conduction and heat dissipation, ensuring the stable operation of the photovoltaic circuit and significantly improving the service life of the photovoltaic solar junction box.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A conductive structure for a photovoltaic solar junction box, characterized in that, It includes a first conductive body and a second conductive body arranged symmetrically, each of which includes a body and a heat dissipation structure, wherein: The body includes a first conductive metal; The heat dissipation structure is disposed on the body and includes a second conductive metal.

2. The conductive structure of the photovoltaic solar junction box according to claim 1, characterized in that: The main body is provided with a groove for limiting the heat dissipation structure, the heat dissipation structure is disposed in the groove, and the height dimension of the heat dissipation structure is greater than the depth dimension of the groove.

3. The conductive structure of the photovoltaic solar junction box according to claim 2, characterized in that: A stop structure is provided on the outer periphery of the body, and the end face of the heat dissipation structure abuts against the stop structure.

4. The conductive structure of the photovoltaic solar junction box according to claim 3, characterized in that: The width of the heat dissipation structure is the same as the width of the main body.

5. The conductive structure of the photovoltaic solar junction box according to claim 4, characterized in that: The length of one side of the heat dissipation structure is the same as the length of the main body, and the length of the other side is not less than 1 / 2 of the length of the main body.

6. The conductive structure of the photovoltaic solar junction box according to claim 5, characterized in that: The heat dissipation structure includes a J-shaped edge.

7. The conductive structure of the photovoltaic solar junction box according to any one of claims 1-6, characterized in that: The first conductive metal includes copper, and the second conductive metal includes aluminum.

8. A photovoltaic solar junction box, characterized in that: The photovoltaic solar junction box includes a conductive structure and a diode as described in any one of claims 1-7, wherein the first conductive body and the second conductive body are symmetrically connected to both sides of the diode.

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