Outdoor photovoltaic panel junction box connector

Abstract

The utility model relates to the technical field of photovoltaic panel connectors, in particular to an outdoor photovoltaic panel junction box connector, which comprises a male plug and a female plug which are matched with each other. The middle of the main body of the male plug and the middle of the main body of the female plug are respectively provided with an embedded connection groove extending along the plugging direction, and the front end of the main body is provided with an embedded connection block protruding outwards. A T-shaped connecting block is arranged on the bottom face of the embedded connecting block, a T-shaped connecting groove matched with the T-shaped connecting block is formed in the middle of the corresponding embedded connecting groove, and a positioning embedded groove of an expanding structure is formed in the rear end of the T-shaped connecting groove. The T-shaped connecting block is in sliding fit with the groove to be combined with the clamping hook structure, so that a double-locking mechanism is formed, accidental separation caused by external force traction or vibration is prevented, the connection stability is improved, the alignment-sliding-locking integrated operation does not need tools, the installation process is simplified, the efficiency is improved, and the device is particularly suitable for high-altitude or narrow space operation.

Description

An outdoor photovoltaic panel junction box connector Technical Field

[0001] This utility model relates to the field of photovoltaic panel connector technology, and in particular to an outdoor photovoltaic panel junction box connector. Background Technology

[0002] As an important component of the renewable energy field, photovoltaic power generation technology has been widely used globally in recent years. As the core component of energy conversion, photovoltaic panels convert solar energy into electrical energy through semiconductor materials. Their output terminals usually require connectors to achieve electrical interconnection between components. In a photovoltaic system, multiple photovoltaic panels need to be connected in series or parallel to form an array to match the working voltage and current requirements of the inverter. In this process, connectors play a key role in transmitting electrical energy and ensuring the reliability of circuit conduction. Mainstream photovoltaic connectors generally adopt a male-female mating structure, which achieves conductivity through the insertion between metal terminals and relies on rubber sealing rings for basic protection.

[0003] Most existing photovoltaic panel connectors adopt a simple plug-in connection design, which relies on the friction between the plug and socket or a shallow snap-fit ​​structure to achieve temporary fixation. Although this design can achieve quick installation, it has significant defects. The mechanical locking function is seriously insufficient, and the connection part lacks an effective anti-detachment structure. When the photovoltaic array is subjected to external forces, such as cable swaying caused by strong winds, accidental pulling by maintenance personnel, or material deformation caused by temperature differences, the physical contact of the plug-in joint is prone to loosening or even complete separation, resulting in circuit interruption and seriously affecting the power generation efficiency of the system. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to propose an outdoor photovoltaic panel junction box connector to solve the problem that existing photovoltaic panel connectors mostly adopt a simple plug-in connection design, which relies on the friction between the plug and socket or a shallow snap-fit ​​structure to achieve temporary fixation, and is easily separated and interrupted when pulled by external force.

[0005] To achieve the above objectives, this utility model provides an outdoor photovoltaic panel junction box connector, comprising:

[0006] Male and female connectors that work together;

[0007] Both the male and female plugs have a mating connection groove extending along the insertion direction in the middle of their main bodies, and a mating connection block protruding outward at the front end of the main body.

[0008] The bottom surface of the fitting connecting block is provided with a T-shaped connecting block, and the middle part of the corresponding fitting connecting groove is provided with a T-shaped connecting groove that is adapted to the T-shaped connecting block. The rear end of the T-shaped connecting groove is provided with a positioning fitting groove with an enlarged structure.

[0009] The fitting connecting block and the fitting connecting groove form a sliding hook engagement structure;

[0010] The male connector has a connector plug on its rear end face, and the female connector has a connector hole on its rear end face.

[0011] When the male and female plugs are connected, the T-shaped connecting block of the mating connecting block is embedded into the rear end of the T-shaped connecting groove through the positioning mating groove. After axial translation, the T-shaped connecting block slides into the front end of the T-shaped connecting groove. At the same time, the connecting plug and the connecting hole form a conductive connection, and the hook engagement structure forms a mechanical lock at the end of the translation.

[0012] Furthermore, a conductive sleeve is provided on the inner side of the connection socket, and a conductive pin is provided in the middle of the connection plug. The conductive pin and the conductive sleeve are configured to cooperate with each other, and a conductive connection is formed between the conductive pin and the conductive sleeve when the male and female plugs are connected.

[0013] Furthermore, the outer end of the connection socket is provided with a fitting and sealing groove, and the outer side of the connection plug is provided with a sealing sleeve. The sealing sleeve and the fitting and sealing groove are mutually fitted. When the male and female plugs are fully connected, the sealing sleeve and the fitting and sealing groove are mutually fitted to seal the connection plug and connection socket that form a conductive connection.

[0014] Furthermore, a locking guide sleeve is vertically arranged inside the main body of the male and female plugs, and a locking pin is nested and slidably arranged inside the locking guide sleeve. A locking slot is arranged in the middle of the bottom surface of the mating connecting block. The locking slot and the locking pin are mutually coordinated. When the male and female plugs are fully mated, the locking pin is embedded in the locking slot to form a locking structure to prevent the male and female plugs from sliding against each other.

[0015] Furthermore, the outer surfaces of the male and female plugs are provided with horizontal guide grooves, and an unlocking push button is slidably fitted in the middle of the horizontal guide groove. A reset spring is provided on the front side of the unlocking push button, and a guide slope is provided at the bottom of the unlocking push button.

[0016] Furthermore, an unlocking spring is provided around the outer side of the locking pin, and a pressing ball is provided at the inner end of the locking pin. The locking pin contacts the guide slope through the pressing ball. When the unlocking push button slides forward, it compresses the reset spring. The unlocking spring pushes the locking pin to move along the guide slope and retract completely into the locking guide sleeve. When the reset spring pushes the unlocking push button to move backward to reset, the guide slope pushes the locking pin to extend out of the locking guide sleeve through the pressing ball.

[0017] The beneficial effects of this utility model are as follows: As can be seen from the above description, the outdoor photovoltaic panel junction box connector provided by this utility model forms a double locking mechanism through the sliding cooperation of the T-shaped connecting block and the slot combined with the hook structure, which prevents accidental separation caused by external pulling or vibration, improves connection stability, and the integrated operation of "alignment-sliding-locking" does not require tools, simplifies the installation process, and improves efficiency. It is especially suitable for high-altitude or confined space operations. Through the synergistic effect of sliding engagement and mechanical locking, it solves the problems of easy loosening and weak tensile strength of traditional photovoltaic connectors without the need for complex structures or additional components, while taking into account both installation convenience and long-term reliability. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in 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 for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 is a structural schematic diagram of the connection state of the male and female plugs in an embodiment of this utility model;

[0020] Figure 2 is a schematic diagram of the internal structure of an embodiment of the present utility model;

[0021] Figure 3 is a structural schematic diagram of the male and female connectors in the separated state of an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of the male connector of this utility model embodiment;

[0023] Figure 5 is a schematic diagram of the structure of the female connector according to an embodiment of the present invention;

[0024] Figure 6 is a schematic diagram of the internal structure of the female connector in an embodiment of this utility model.

[0025] The diagram is marked as follows:

[0026] 1. Male connector; 2. Female connector; 3. Fitting groove; 301. T-shaped groove; 302. Positioning groove; 4. Fitting block; 401. T-shaped block; 5. Connecting socket; 501. Conductive sleeve; 502. Fitting closed groove; 6. Connecting plug; 601. Conductive pin; 602. Sealing sleeve; 7. Unlocking push button; 701. Horizontal guide groove; 702. Return spring; 703. Guide slope; 8. Locking guide sleeve; 801. Locking pin; 802. Unlocking spring; 803. Top pressure ball; 804. Locking slot. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0028] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] As shown in Figures 1, 2, 3, 4, 5, and 6, an outdoor photovoltaic panel junction box connector includes:

[0030] Male connector 1 and female connector 2 work together;

[0031] Both male plug 1 and female plug 2 have a mating connection groove 3 extending along the insertion direction in the middle of their main bodies, and a mating connection block 4 protruding outward at the front end of their main bodies.

[0032] The bottom surface of the fitting connecting block 4 is provided with a T-shaped connecting block 401, and the corresponding fitting connecting groove 3 is provided with a T-shaped connecting groove 301 that is adapted to the T-shaped connecting block 401 in the middle. The rear end of the T-shaped connecting groove 301 is provided with a positioning fitting groove 302 with an enlarged structure.

[0033] A sliding hook-and-loop engagement structure is formed between the interlocking connecting block 4 and the interlocking connecting groove 3;

[0034] The male plug 1 has a connecting plug 6 on the rear end face of the mating connecting block 4, and the female plug 2 has a corresponding connecting hole 5 on the rear end face of the mating connecting block 4.

[0035] When the male and female plugs 2 are connected, the T-shaped connecting block 401 of the mating connecting block 4 is embedded into the rear end of the T-shaped connecting groove 301 through the positioning mating groove 302. After axial translation, the T-shaped connecting block 401 slides into the front end of the T-shaped connecting groove 301. At the same time, the connecting plug 6 and the connecting socket 5 form a conductive connection, and the hook engagement structure forms a mechanical lock at the end of the translation.

[0036] In this embodiment, both the male plug 1 and the female plug 2 have a mating connection groove 3 extending along the insertion direction. The front end has an outwardly protruding mating connection block 4. A T-shaped connection block 401 is provided on the bottom surface of the mating connection block 4. A T-shaped connection groove 301 is provided in the middle of the corresponding mating connection groove 3, and its rear end is a flared positioning mating groove 302. The mating connection block 4 and the mating connection groove 3 slide together to form a hook-and-loop engagement structure. The rear end of the mating connection block 4 of the male plug 1 has a connecting plug 6, and the corresponding position of the female plug 2 has a connecting hole 5. During connection, the mating connection blocks 4 of the male plug 1 and the female plug 2 are initially embedded into the rear end of the T-shaped connection groove 301 through the positioning mating groove 302, and then translated axially, causing the T-shaped connection block 401 to slide into the front of the T-shaped connection groove 301. During this process, the connector 6 is gradually inserted into the socket for connection. The hook engagement structure automatically locks at the sliding end point to complete the mechanical fixation. To disassemble, the locking state can be released by sliding in the opposite direction. The sliding engagement of the device's T-shaped connecting block 401 with the slot, combined with the hook structure, forms a double locking mechanism to prevent accidental separation caused by external pulling or vibration, thus improving connection stability. Furthermore, the integrated operation of "alignment-sliding-locking" requires no tools, simplifying the installation process and improving efficiency. It is especially suitable for high-altitude or confined space operations. Through the synergistic effect of sliding engagement and mechanical locking, the problems of easy loosening and weak tensile strength of traditional photovoltaic connectors are solved without the need for complex structures or additional components, while also taking into account installation convenience and long-term reliability.

[0037] As shown in Figures 1, 2, 3, 4, 5, and 6, preferably, a conductive sleeve 501 is fixedly installed inside the connecting socket 5. Its inner wall has a multi-lobed elastic contact structure to wrap and clamp the conductive pin 601. A columnar conductive pin 601 is coaxially arranged at the center of the connecting plug 6, with its outer diameter slightly larger than the inner diameter of the conductive sleeve 501, ensuring radial compression contact during insertion. When the male plug 1 mates with the female plug 2, the conductive pin 601 gradually inserts into the conductive sleeve 501 as the fitting connecting block 4 slides. After the elastic contact piece is compressed and deformed, it tightly adheres to the surface of the conductive pin 601, forming a stable contact. The low-resistance conductive path has an annular fitting and sealing groove 502 around the outer end of the connecting socket 5. The inner wall of the groove is a beveled or arc-shaped transition. An annular sealing sleeve 602 is integrally formed on the outer side of the connecting plug 6. Its cross-sectional shape matches the fitting and sealing groove 502. When the male and female plugs 2 are fully connected, the sealing sleeve 602 is pressed into the fitting and sealing groove 502 as the fitting connecting block 4 slides. The sleeve is squeezed by the groove wall and expands radially, filling the gap in the groove and forming a continuous sealing barrier around the conductive pin 601 and the sleeve. This effectively prevents rainwater and dust from seeping in along the gap between the plug and the socket, improving the waterproof performance in outdoor environments.

[0038] As shown in Figures 1, 2, 3, 4, 5, and 6, preferably, the main body of the male plug 1 and the female plug 2 is provided with a cylindrical locking guide sleeve 8 along the vertical direction, and a columnar locking pin 801 that can slide up and down is nested inside the sleeve. Under normal conditions, the pin extends out of the lower end of the locking guide sleeve 8. A locking slot 804 matching the cross section of the locking pin 801 is opened in the middle of the bottom surface of the mating connecting block 4. When the male plug 1 and the female plug 2 are fully mated, the mating connecting block 4 slides to the front end of the mating connecting groove 3. At this time, the locking guide sleeve 8 and the locking slot 804 are vertically aligned, and the locking pin 801 is embedded in the locking slot 804, forming a mechanical lock perpendicular to the insertion direction. The vertical cross-locking structure of the vertical locking pin 801 and the horizontal locking slot 804 adds a mechanical constraint dimension outside the insertion direction, completely preventing the risk of axial sliding or lateral misalignment of the male and female plugs 2 due to vibration or lateral force, and significantly improving the connection reliability in high-dynamic outdoor environments.

[0039] As shown in Figures 1, 2, 3, 4, 5, and 6, preferably, the outer surfaces of the male plug 1 and female plug 2 are provided with horizontal guide grooves 701. An unlocking push button 7 is slidably installed within the grooves. A return spring 702 is provided between the front side of the unlocking push button 7 and the inner wall of the guide groove. Under normal conditions, pushing the unlocking push button 7 moves it back to its initial position. An inclined guide slope 703 is machined at the bottom of the unlocking push button 7. An unlocking spring 802 is sleeved on the outside of the locking pin 801, and a pressure ball 803 is fixedly installed at its inner end. The pressure ball 803 contacts the guide slope 703 of the unlocking push button 7. When unlocking is required, it slides forward to release the pressure ball. The locking push button 7, with its guide slope 703 pressing the top pressure ball 803, causes the locking pin 801 to lose its obstruction. The unlocking spring 802 pushes the locking pin 801 to retract into the locking guide sleeve 8 and disengage from the locking slot 804. At this time, the return spring 702 is compressed. After the unlocking push button 7 is released, the return spring 702 pushes the push button to reset, and the guide slope 703 moves in the opposite direction. Then, the top pressure ball 803 pushes the locking pin 801 to extend out of the locking guide sleeve 8, restoring the locking standby state. A single finger press can simultaneously complete the retraction of the locking pin 801 and the sliding separation of the male and female plugs 2. The operation is smooth and does not require complicated force.

[0040] In use, the mating connecting block 4 of male plug 1 and female plug 2 is initially embedded into the rear end of T-shaped connecting groove 301 through positioning mating groove 302. Then, it is translated axially, so that T-shaped connecting block 401 slides into the front end of T-shaped connecting groove 301. During this process, the connecting plug 6 and the socket are gradually connected and made conductive. The conductive pin 601 is gradually inserted into the conductive sleeve 501 as the mating connecting block 4 slides. After the elastic contact piece is squeezed and deformed, it tightly adheres to the surface of the conductive pin 601, forming a stable low-resistance conductive path. The sealing sleeve 602 is pressed into the mating sealing groove 502 as the mating connecting block 4 slides. The sleeve is squeezed by the groove wall and generates radial expansion, filling the gap in the groove and forming a continuous sealing barrier around the conductive pin 601 and the sleeve until the hook engagement structure automatically locks at the sliding end point, completing the mechanical fixation. When disassembling, the locking state can be released by sliding in the opposite direction.

[0041] The outdoor photovoltaic panel junction box connector provided by this utility model forms a double locking mechanism through the sliding engagement of the T-shaped connecting block 401 and the slot combined with the hook structure. This prevents accidental separation caused by external pulling or vibration, improving connection stability. Furthermore, the integrated operation of "alignment-sliding-locking" requires no tools, simplifying the installation process and improving efficiency. It is especially suitable for high-altitude or confined space operations. Through the synergistic effect of sliding engagement and mechanical locking, it solves the problems of easy loosening and weak tensile strength of traditional photovoltaic connectors without the need for complex structures or additional components, while taking into account both ease of installation and long-term reliability.

[0042] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this utility model is limited to these examples; within the framework of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this utility model as described above, which are not provided in the details for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An outdoor photovoltaic panel junction box connector, characterized in that, include: A male connector (1) and a female connector (2) that cooperate with each other; both the male connector (1) and the female connector (2) have a mating connection groove (3) extending along the insertion direction in the middle of their main bodies, and a mating connection block (4) protruding outward at the front end of their main bodies; the bottom surface of the mating connection block (4) is provided with a T-shaped connection block (401), and the middle part of the corresponding mating connection groove (3) is provided with a T-shaped connection groove (301) that is adapted to the T-shaped connection block (401), and the rear end of the T-shaped connection groove (301) is provided with a positioning mating groove (302) with an enlarged structure; a mating connection block (4) and a mating connection groove (3) form a connection between them. A sliding hook-and-loop engagement structure is provided; the rear end face of the male plug (1) is provided with a connecting plug (6), and the rear end face of the female plug (2) is provided with a corresponding connecting hole (5); when the male and female plugs (2) are connected, the T-shaped connecting block (401) of the male plug (4) is embedded into the rear end of the T-shaped connecting groove (301) through the positioning fitting groove (302), and the T-shaped connecting block (401) slides into the front end of the T-shaped connecting groove (301) through axial translation, while the connecting plug (6) and the connecting hole (5) form a conductive connection, and the hook-and-loop engagement structure forms a mechanical lock at the end point of translation.

2. The outdoor photovoltaic panel junction box connector according to claim 1, characterized in that, A conductive sleeve (501) is provided on the inner side of the connection socket (5), and a conductive pin (601) is provided in the middle of the connection plug (6). The conductive pin (601) and the conductive sleeve (501) are configured to cooperate with each other. When the male and female plugs (2) are connected, a conductive connection is formed between the conductive pin (601) and the conductive sleeve (501).

3. The outdoor photovoltaic panel junction box connector according to claim 1, characterized in that, The outer end of the connecting socket (5) is surrounded by a fitting and sealing groove (502), and the outer side of the connecting plug (6) is surrounded by a sealing sleeve (602). The sealing sleeve (602) and the fitting and sealing groove (502) are mutually fitted together. When the male and female plugs (2) are fully connected, the sealing sleeve (602) and the fitting and sealing groove (502) are mutually fitted together to seal the connecting plug (6) and the connecting socket (5) to form a conductive connection.

4. The outdoor photovoltaic panel junction box connector according to claim 1, characterized in that, The male plug (1) and female plug (2) are vertically provided with locking guide sleeves (8) inside their main bodies. Locking pins (801) are nested and slidably provided inside the locking guide sleeves (8). Locking slots (804) are provided in the middle of the bottom surface of the fitting connecting block (4). Locking slots (804) and locking pins (801) are mutually engaged. When the male and female plugs (2) are fully engaged, locking pins (801) are embedded in locking slots (804) to form a locking structure to prevent the male and female plugs (2) from sliding together.

5. The outdoor photovoltaic panel junction box connector according to claim 4, characterized in that, The outer sides of the main body of the male plug (1) and female plug (2) are provided with horizontal guide grooves (701), and an unlocking push button (7) is slidably fitted in the middle of the horizontal guide groove (701). A reset spring (702) is provided on the front side of the unlocking push button (7), and a guide slope (703) is provided at the bottom of the unlocking push button (7).

6. The outdoor photovoltaic panel junction box connector according to claim 5, characterized in that, An unlocking spring (802) is arranged around the outer side of the locking pin (801), and a pressing ball (803) is arranged at the inner end of the locking pin (801). The locking pin (801) contacts the guide slope (703) through the pressing ball (803). When the unlocking push button (7) slides forward, it compresses the reset spring (702). The unlocking spring (802) pushes the locking pin (801) to move along the guide slope (703) and fully retract into the locking guide sleeve (8). When the reset spring (702) pushes the unlocking push button (7) to move backward to reset, the guide slope (703) pushes the locking pin (801) to extend out of the locking guide sleeve (8) through the pressing ball (803).

Images