Photovoltaic module junction box

Abstract

The utility model discloses a photovoltaic module junction box, which comprises a main body piece and a connecting piece, a first accommodating cavity is arranged in the main body piece, a connecting seat is fixedly arranged on one side of the main body piece, a second connecting cavity is arranged on the connecting seat, one end of the connecting piece is positioned in the first accommodating cavity and is used for electrically connecting a photovoltaic element, and the other end of the connecting piece is positioned in the second accommodating cavity and is used for electrically connecting the photovoltaic element. One end of the connecting piece penetrates through the main body piece and extends into the first connecting cavity of the connecting seat, the other end of the connecting piece penetrates through the main body piece and extends into the second connecting cavity of the connecting seat, so that the connecting piece is electrically connected between the first containing cavity and the second connecting cavity, and during actual operation, the connecting reliability in the operation process is improved through stable installation of the connecting piece; the problem of poor reliability of an original connecting line is avoided, connection faults caused by movement are avoided, the overall structure is simple, production errors and operation gaps caused by assembly errors are reduced, and integrity is improved.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic module accessories, and in particular to a photovoltaic module junction box. Background Art

[0002] The photovoltaic junction box is a connecting device between the solar cell array composed of solar cell modules and the solar charging control device. Its main function is to connect and protect solar photovoltaic modules, connect the power generated by solar cells to external circuits, and conduct the current generated by photovoltaic modules.

[0003] At present, conventional junction boxes include a junction box body, a junction mechanism and a wire connection mechanism. A full-coverage upper cover is installed on the top of the junction box body, and connection blocks are installed at both ends of the outer wall of the upper cover. A clamping block is installed at the bottom of the connection block. The junction mechanism is screwed to the inner wall of the connection seat. During the production process, due to improper installation and the influence of the weight of the wires, some parts of the bottom are often missing glue or uneven glue overflow, the box body is skewed, and other repair phenomena occur, resulting in waste of manpower and loss of incomplete sets after the junction box is damaged. In outdoor verification, the failure rate of the junction box is high and the maintenance cost is increased. Utility Model Content

[0004] In view of the defects existing in the prior art, the present application provides a photovoltaic module junction box to solve the problems in the prior art that the junction box has a complex structure and is difficult to maintain.

[0005] The above-mentioned purpose of this application is mainly achieved through the following technical solutions:

[0006] A photovoltaic module junction box, comprising:

[0007] A main body, wherein a first accommodating cavity is provided in the main body, a connecting seat is fixedly provided on one side of the main body, and a second connecting cavity is provided on the connecting seat;

[0008] A connector, one end of which is located in the first accommodating cavity and is used to electrically connect the photovoltaic element, and the other end of which passes through the main body and extends into the second connecting cavity of the connecting seat, so that the connector forms an electrical connection between the first accommodating cavity and the second connecting cavity.

[0009] In an optional embodiment, the main body includes a main body portion and a cover portion, and the cover portion is detachably arranged on the main body portion.

[0010] In an optional embodiment, a sealing ring is sleeved on the connecting member, and the sealing ring is clamped between the connecting member and the main member.

[0011] In an optional embodiment, the sealing ring is made of fluoroether rubber, a through hole is provided on the main body, and an annular positioning groove that can be clamped in the through hole is provided on the outer peripheral surface of the sealing ring.

[0012] In an optional embodiment, a diode is provided in the first accommodating cavity of the main body, and the conductor of the diode is integrally provided with the connecting member.

[0013] In an optional embodiment, the connection seat is provided with a plug interface, the plug interface is circular, the second connection cavity is formed in the plug interface, and one end of the connector extends along the central axis of the plug interface.

[0014] In an optional embodiment, a plurality of connection grooves are provided on the connection seat, and the connection grooves are used to accommodate positioning blocks on the connector.

[0015] In an optional embodiment, the connecting member includes working sections extending into the first accommodating cavity and the second connecting cavity respectively, and an intermediate section connected between the working sections, and the two working sections are located at different heights and arranged parallel to each other.

[0016] In an optional embodiment, the connecting member includes working sections extending into the first accommodating cavity and the second connecting cavity respectively, and an intermediate section connected between the working sections, and the two working sections are located at different heights and arranged perpendicular to each other.

[0017] In an optional embodiment, a plurality of supporting positioning columns for supporting one end of the connecting member are provided in the first accommodating cavity of the main body.

[0018] Compared with the prior art, the advantages of this application are:

[0019] The photovoltaic module junction box in the present application includes a main body and a connecting member, wherein a first accommodating cavity is provided in the main body, a connecting seat is fixedly provided on one side of the main body, and a second connecting cavity is provided on the connecting seat, one end of the connecting member is located in the first accommodating cavity and is used to electrically connect the photovoltaic element, and the other end of the connecting member passes through the main body and extends to the second connecting cavity of the connecting seat, so that the connecting member forms an electrical connection between the first accommodating cavity and the second connecting cavity. During actual operation, the stable installation of the connecting member improves the connection reliability during the operation process, avoids the poor reliability problem of the original connecting line, and avoids connection failures caused by movement. The overall structure is simple, reduces the operating gap caused by production errors and assembly errors, and improves the integrity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 A schematic diagram of the structure of a photovoltaic module junction box is provided for an embodiment of the present application;

[0022] Figure 2 A side view of a photovoltaic module junction box is provided for an embodiment of the present application;

[0023] Figure 3 A side view of a sealing ring is provided for an embodiment of the present application;

[0024] Figure 4 A schematic structural diagram of a photovoltaic module junction box is provided for an embodiment of the present application when the connection socket is arranged in the second position;

[0025] In the figure: 100, main body; 101, main body; 102, cover; 103, first accommodating cavity; 200, connecting seat; 201, second connecting cavity; 202, plug interface; 203, connecting groove; 300, connecting part; 301, working section; 302, middle section; 303, diode; 401, sealing ring; 402, annular positioning groove; 403, support positioning column. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is intended to aid understanding of the present invention and does not constitute a limitation of the present invention. The specific structural and functional details disclosed herein are merely intended to describe exemplary embodiments of the present invention. However, the present invention may be embodied in many alternative forms, and should not be construed as being limited to the embodiments described herein.

[0027] like Figure 1 、 Figure 2 As shown, Figure 1 The present invention provides a schematic diagram of the structure of a photovoltaic module junction box. Figure 2 A side view of a photovoltaic module junction box is provided for an embodiment of the present application. The photovoltaic module junction box includes a main body 100 and a connector 300, wherein:

[0028] like Figure 1 、 Figure 2As shown, a first accommodating cavity 103 is provided in the main body 100, a connecting seat 200 is fixedly provided on one side of the main body 100, and a second connecting cavity 201 is provided on the connecting seat 200. In order to maintain the connection stability between the main body 100 and the connecting seat 200 and the stability of the relative position relationship during operation, the connecting seat 200 can be arranged in an integrated manner on one side of the main body 100 to improve the relative stability of the first accommodating cavity 103 and the second connecting cavity 201.

[0029] like Figure 1 、 Figure 2 As shown, one end of the connector 300 is located in the first accommodating cavity 103 and is used to electrically connect the photovoltaic element. The other end of the connector 300 passes through the main body 100 and extends to the second connecting cavity 201 of the connecting seat 200, so that the connector 300 forms an electrical connection between the first accommodating cavity 103 and the second connecting cavity 201. The connector 300 is directly arranged between the first accommodating cavity 103 and the second connecting cavity 201 to maintain the reliability of the current conduction operation in different working conditions and avoid failures or energy waste caused by unstable connection.

[0030] In an optional embodiment, the working principle of the photovoltaic module junction box in the present application is: the photovoltaic module junction box includes a main body 100 and a connector 300, the main body 100 is provided with a first accommodating cavity 103, a connecting seat 200 is fixedly provided on one side of the main body 100, and a second connecting cavity 201 is provided on the connecting seat 200, one end of the connector 300 is located in the first accommodating cavity 103, and is used to electrically connect the photovoltaic element, the other end of the connector 300 passes through the main body 100, and extends to the second connecting cavity 201 of the connecting seat 200, so that the connector 300 forms an electrical connection between the first accommodating cavity 103 and the second connecting cavity 201. During actual operation, the stable installation of the connector 300 improves the connection reliability during the operation process, avoids the poor reliability problem of the original connecting line, and avoids connection failures caused by movement. The overall structure is simple, reduces the operating gap caused by production errors and assembly errors, and improves the integrity.

[0031] like Figure 1 、 Figure 2 As shown, in an optional embodiment, the main body 100 includes a main body portion 101 and a cover portion 102 , and the cover portion 102 is detachably disposed on the main body portion 101 .

[0032] The cover 102 can be opened or closed to facilitate auxiliary operations such as maintenance when manual intervention is required. It can also maintain the relative sealing of the main body 100 as a whole under normal operating conditions, thereby improving operational reliability.

[0033] like Figure 1 、 Figure 2 As shown, in an optional embodiment, a sealing ring 401 is provided on the connector 300, and the sealing ring 401 is clamped between the connector 300 and the main body 100. The sealing ring 401 is arranged between the connector 300 and the main body 100. When the connector 300 is performing current conduction operation, the sealing ring 401 provides a sealing component between the first accommodating cavity 103 and the second connecting cavity 201, thereby maintaining reliable conduction of the operating current and improving operational stability. Moreover, the sealing ring 401 can further improve the relative position stability of the connector 300 after passing through the main body 100, thereby avoiding displacement or shaking of the connector 300 relative to the main body 100 and improving reliability.

[0034] like Figure 1 、 Figure 2 as well as Figure 3 As shown, Figure 3 A side view of a sealing ring 401 is provided for an embodiment of the present application. In an optional embodiment, the sealing ring 401 is made of fluoroether rubber, a through hole is provided on the main body 100, and an annular positioning groove 402 that can be clamped in the through hole is provided on the outer peripheral surface of the sealing ring 401.

[0035] The fluoroether rubber material maintains the insulation of the sealing ring 401 and improves the stability when the current passes through the connector 300. The tensile strength change rate index and the brittle temperature index provided by the fluoroether rubber material provide a stable support and restraint state under working conditions. The sealing ring 401 cooperates with the through hole on the main body 100 through the annular positioning groove 402 to avoid accidental disengagement of the sealing ring 401.

[0036] like Figure 1 、 Figure 2 As shown, in an optional embodiment, a diode 303 is provided in the first accommodating cavity 103 of the main body 100, and the conductor of the diode 303 is integrated with the connecting member 300 to improve the overall connection stability and reduce the difficulty and failure rate of the assembly operation.

[0037] like Figure 1 、 Figure 2As shown, in an optional embodiment, a plug interface 202 is provided on the connection seat 200, and the plug interface 202 is circular, and the second connection cavity 201 is formed in the plug interface 202, and one end of the connector 300 extends along the central axis of the plug interface 202. The plug interface 202 facilitates the direct plugging of the connector during connection and assembly, and completes the electrical connection with the connector 300 after the connector is plugged in. It should be noted that the plugging process at the plug interface 202 provides positioning guidance for the plugging operation, improves the operation accuracy, reduces the connection difficulty, and simplifies the alignment operation.

[0038] like Figure 1 、 Figure 2 As shown, in an optional embodiment, a plurality of connection grooves 203 are provided on the connection seat 200, and the connection grooves 203 are used to accommodate positioning blocks on the connector. The connection grooves 203 further improve the connection accuracy and the stability of the connection state, thereby avoiding relative movement and disengagement between the connector and the connection seat 200.

[0039] like Figure 1 、 Figure 2 As shown, in an optional embodiment, the connector 300 includes an operating section 301 extending into the first accommodating cavity 103 and the second connecting cavity 201 respectively, and an intermediate section 302 connected between the operating sections 301. The two operating sections 301 are located at different heights and are arranged parallel to each other, so as to facilitate constraining the connection direction of the connector by the direction of the connecting seat 200 during operation, thereby facilitating operation and space utilization.

[0040] like Figure 1 、 Figure 2 As shown, in an optional embodiment, the connector 300 includes an operating section 301 extending into the first accommodating cavity 103 and the second connecting cavity 201 respectively, and an intermediate section 302 connected between the operating sections 301. The two operating sections 301 are located at different heights and are arranged perpendicular to each other, so as to facilitate constraining the connection direction of the connector by the direction of the connecting seat 200 during operation, thereby facilitating operation and space utilization.

[0041] like Figure 4 As shown, Figure 4 A structural schematic diagram of the photovoltaic module junction box is provided for an embodiment of the present application when the connecting seat 200 is arranged in the second position. In an optional embodiment, a plurality of support positioning columns 403 supporting one end of the connecting member 300 are provided in the first accommodating cavity 103 of the main body 100, thereby improving the stability of the end of the connecting member 300 extending into the first accommodating cavity 103 of the main body 100 and preventing the end from swinging or jumping in the first accommodating cavity 103.

[0042] It should be understood that the terms first, second, etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. Although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the exemplary embodiments of the present invention.

[0043] It should be understood that the term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that two relationships may exist. For example, A / and B can represent two situations: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0044] It should be understood that in the description of the present invention, the terms "upper", "vertical", "inside", "outside", etc. indicate the orientation or position relationship, which is the orientation or position relationship in which the disclosed product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0045] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0046] The terms used herein are used only to describe specific embodiments and are not intended to limit the exemplary embodiments of the present invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "include", "comprising", "including", and / or "comprising" when used herein specify the presence of the claimed features, integers, steps, operations, units, and / or components, and do not exclude the presence or addition of one or more other features, quantities, steps, operations, units, components, and / or their combinations.

[0047] In the following description, certain details are provided to facilitate a thorough understanding of the exemplary embodiments. However, one of ordinary skill in the art will appreciate that the exemplary embodiments may be practiced without these specific details. In other embodiments, well-known processes, structures, and techniques may not be shown in unnecessary detail in order to avoid obscuring the exemplary embodiments.

[0048] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

[0049] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field.

Claims

1. A photovoltaic module junction box, characterized in that: The photovoltaic module junction box includes: A main body, wherein a first accommodating cavity is provided in the main body, a connecting seat is fixedly provided on one side of the main body, and a second connecting cavity is provided on the connecting seat; A connector, one end of which is located in the first accommodating cavity and is used to electrically connect the photovoltaic element, and the other end of which passes through the main body and extends into the second connecting cavity of the connecting seat, so that the connector forms an electrical connection between the first accommodating cavity and the second connecting cavity.

2. The photovoltaic module junction box according to claim 1, wherein: The main body comprises a main body portion and a cover portion, and the cover portion is detachably arranged on the main body portion.

3. The photovoltaic module junction box according to claim 1, wherein: A sealing ring is sleeved on the connecting piece and is clamped between the connecting piece and the main body.

4. The photovoltaic module junction box according to claim 3, wherein: The sealing ring is made of fluoroether rubber, a through hole is provided on the main body, and an annular positioning groove which can be clamped in the through hole is provided on the outer peripheral surface of the sealing ring.

5. The photovoltaic module junction box according to claim 1, wherein: A diode is provided in the first accommodating cavity of the main body, and the conductor of the diode is integrally provided with the connecting member.

6. The photovoltaic module junction box according to claim 1, wherein: The connecting seat is provided with an inserting interface, which is circular in shape. The second connecting cavity is formed in the inserting interface, and one end of the connecting piece extends along the central axis of the inserting interface.

7. The photovoltaic module junction box according to claim 1, wherein: The connecting seat is provided with a plurality of connecting grooves, and the connecting grooves are used to accommodate the positioning blocks on the plug-in connector.

8. The photovoltaic module junction box according to claim 1, wherein: The connecting member includes working sections extending into the first accommodating cavity and the second connecting cavity respectively, and an intermediate section connected between the working sections. The two working sections are located at different heights and are arranged parallel to each other.

9. The photovoltaic module junction box according to claim 1, wherein: The connecting member includes working sections extending into the first accommodating cavity and the second connecting cavity respectively, and an intermediate section connected between the working sections. The two working sections are located at different heights and are arranged perpendicular to each other.

10. The photovoltaic module junction box according to claim 1, wherein: A plurality of supporting positioning columns for supporting one end of the connecting member are provided in the first accommodating cavity of the main body.

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