Shockproof, tensile and waterproof photovoltaic connector

Abstract

The utility model relates to the photovoltaic field, and especially relates to a shockproof, tensile and waterproof photovoltaic connector comprising a male head main body and a female head main body, the female head main body and the male head main body are mutually plugged and cooperated, a port of a plugging part of the female head main body is provided with a sealing ring, an outer end of the sealing ring abuts against a spacing compression ring, the spacing compression ring is sleeved on the male head main body, and the male head main body is sleeved on the spacing compression ring. The outer side of the limiting pressing ring is sleeved with a middle lock nut, the middle lock nut is matched with the limiting pressing ring in an abutting mode, and the middle lock nut is connected with the inserting portion of the female head body. Axial movement of the sealing ring is limited through the limiting pressing ring, the middle lock nut abuts against the limiting pressing ring, good supporting and position limiting effects on the middle lock nut are achieved through the limiting pressing ring, the male connector body and the female connector body are locked together through the middle lock nut, and the phenomenon that the male connector body and the female connector body are loosened due to vibration and waterproof failure is caused is avoided. The good sealing effect of the connector is ensured, and the electrical connection conductivity is more stable.

Description

Technical Field

[0001] This utility model relates to the photovoltaic field, and in particular to a photovoltaic connector that integrates shock resistance, tensile strength and waterproofing. Background Technology

[0002] Photovoltaic connectors are used in solar photovoltaic systems, primarily for electrical connections between solar panels and cables, inverters, or other components. Due to the special environment and requirements of solar panels, photovoltaic connectors typically possess characteristics such as waterproofing, dustproofing, high-temperature resistance, and UV resistance to ensure the safe and reliable operation of the system.

[0003] Traditional photovoltaic connectors are mainly divided into male and female connectors, which represent the positive and negative leads of the photovoltaic module, respectively. One or more O-rings are typically used for waterproof sealing between the male and female connectors. However, during use, factors such as product movement and vibration can cause the waterproofing to fail, thus affecting the internal conductivity of the electrical connector. Therefore, a shockproof and waterproof photovoltaic connector with a novel sealing structure is proposed. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide a photovoltaic connector that integrates shock resistance, tensile strength, and waterproofing. This utility model adopts the following technical solution:

[0005] This utility model provides a photovoltaic connector that integrates shock resistance, tensile strength, and waterproofing, including a male connector body and a female connector body. The front ends of both the male and female connector bodies are insertion portions. The female connector body and the male connector body are interlocked. An annular groove is provided at the port of the insertion portion of the female connector body, and a sealing ring is provided in the annular groove. The inner and outer rings of the sealing ring respectively seal against the insertion portions of the male and female connector bodies, and the outer end of the sealing ring abuts against a limiting pressure ring. The limiting pressure ring is fitted onto the male connector body. A limiting protrusion is provided on the outer wall of the insertion portion of the male connector body, and the limiting protrusion axially limits the insertion of the limiting pressure ring. An intermediate locking nut is fitted on the outer side of the limiting pressure ring, and the intermediate locking nut presses against the limiting pressure ring. The pressure of the intermediate locking nut against the limiting pressure ring is the same as the insertion direction of the male connector body. The intermediate locking nut is connected to the insertion portion of the female connector body.

[0006] Preferably, the axial cross-section of the sealing ring is T-shaped.

[0007] Preferably, the intermediate lock nut includes a connecting sleeve, which is threadedly connected to the outer wall of the insertion part of the female head body through a threaded structure. A retaining ring is provided at the front end of the connecting sleeve, and the retaining ring is in abutting engagement with the limiting pressure ring.

[0008] Preferably, the limiting pressure ring includes a ring body, one end of which is provided with a plurality of limiting hooks arranged in annular intervals; the limiting hooks are axially limited and engaged with the limiting protrusions.

[0009] Preferably, both the male head body and the female head body have a tapered inner plug at their rear ends, and an end lock nut is provided on the outer side of the tapered inner plug. The end lock nut is threadedly connected to the male head body or the female head body.

[0010] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0011] This invention utilizes a limiting pressure ring to restrict the axial movement of the sealing ring. The intermediate lock nut rests against the limiting pressure ring, which provides good support and position restriction for the intermediate lock nut. The intermediate lock nut locks the male and female heads together, preventing them from loosening due to vibration and causing waterproofing failure. This ensures a good sealing effect for the connector and makes the electrical connection conductivity more stable. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a structural schematic diagram of the photovoltaic connector of this utility model, which integrates shock resistance, tensile strength, and waterproofing.

[0014] Figure 2 This is a cross-sectional view of the photovoltaic connector of this utility model, which integrates shock resistance, tensile strength, and waterproofing.

[0015] Figure 3 This is a schematic diagram of the sealing ring of this utility model;

[0016] Figure 4 This is a cross-sectional view of the intermediate lock nut of this utility model;

[0017] Figure 5 This is a schematic diagram of the limiting pressure ring of this utility model;

[0018] Figure 6 This is a schematic diagram of the assembly of the limiting pressure ring and the male head body of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Male head body; 101. Limiting protrusion; 2. Female head body; 3. Middle lock nut; 301. Connecting sleeve; 302. Retaining ring; 4. Annular embedded groove; 5. Sealing ring; 6. Limiting pressure ring; 601. Ring body; 602. Limiting hook; 7. Conical inner plug; 8. End lock nut. Detailed Implementation

[0020] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] like Figure 1 and 2 As shown, this embodiment discloses a photovoltaic connector that integrates shock resistance, tensile strength, and waterproofing, including a male connector body 1 and a female connector body 2. The front ends of both the female connector body 2 and the male connector body 1 are insertion portions. The female connector body 2 and the male connector body 1 are interlocked. An annular groove 4 is provided at the port of the insertion portion of the female connector body 2, and a sealing ring 5 is provided in the annular groove 4. The inner and outer rings of the sealing ring 5 respectively seal against the insertion portions of the male connector body 1 and the female connector body 2, and the outer end of the sealing ring 5 abuts against a limiting pressure ring 6. Ring 6 is fitted onto male connector body 1. A limiting protrusion 101 is provided on the outer wall of the insertion part of male connector body 1. The limiting protrusion 101 is axially limited and matched with the limiting pressure ring 6. The limiting direction of the limiting protrusion 101 on the limiting pressure ring 6 is opposite to the insertion direction of male connector body 1. An intermediate locking nut 3 is fitted on the outer side of the limiting pressure ring 6. The intermediate locking nut 3 is pressed and matched with the limiting pressure ring 6. The pressing force of the intermediate locking nut 3 on the limiting pressure ring 6 is the same as the insertion direction of male connector body 1. The intermediate locking nut 3 is connected to the insertion part of female connector body 2.

[0022] When the intermediate locking nut 3 abuts against the limiting ring 6, the limiting ring 6 pushes the sealing ring 5 to move axially for sealing. The limiting ring 6 restricts the axial movement of the sealing ring 5, and the male head body 1 and the female head body 2 are sealed by the sealing ring 5. After the intermediate locking nut 3 is locked, if the photovoltaic connector is pulled in the opposite direction, the male head body 1 and the female head body 2 will not separate because the limiting protrusion 101 limits the limiting ring 6.

[0023] The photovoltaic connector in this application uses the limiting pressure ring 6 to provide good support and position restriction for the intermediate locking nut 3. The intermediate locking nut 3 locks the male head body 1 and the female head body 2 together, preventing the male and female heads from loosening due to vibration and causing waterproof failure. This ensures the good waterproof sealing effect of the connector and makes the electrical connection conductivity more stable.

[0024] like Figure 3 As shown, the axial cross-section of the sealing ring 5 is T-shaped. The larger end of the sealing ring 5 is press-fitted with the limiting pressure ring 6.

[0025] like Figure 4 As shown, the intermediate lock nut 3 includes a connecting sleeve 301, which is threaded to the outer wall of the insertion part of the female head body 2 through a threaded structure. A retaining ring 302 is provided at the front end of the connecting sleeve 301, and the retaining ring 302 is in abutting engagement with the limiting pressure ring 6.

[0026] like Figure 5 and 6As shown, the limiting pressure ring 6 includes a ring body 601, and one end of the ring body 601 is provided with a plurality of limiting hooks 602 arranged in annular intervals. After the limiting pressure ring 6 is fitted onto the male head body 1, the limiting protrusion 101 abuts against the limiting hook 602 from the front, and engages with the limiting hook 602 in an axial limiting fit.

[0027] It should be noted that the male head body 1, the female head body 2, the intermediate lock nut 3, and the limiting pressure ring 6 are all made of plastic and are manufactured using injection molding. The limiting hook 602 on the limiting pressure ring 6 has a certain degree of elasticity. The limiting pressure ring 6 is fitted onto the male head body 1 from the front to the rear, thereby achieving the limiting engagement between the limiting hook 602 and the limiting protrusion 101.

[0028] In this embodiment, both the male connector body 1 and the female connector body 2 have a tapered inner plug 7 at their rear ends, and an end lock nut 8 is provided on the outer side of the tapered inner plug 7. The end lock nut 8 is threadedly connected to the male connector body 1 or the female connector body 2. The tapered inner plug 7 is sleeved on the wire to tighten it, and the end lock nut 8 is used to press and fix the tapered inner plug 7 against the rear ends of the male connector body 1 and the female connector body 2. In this embodiment, the structure of the end lock nut 8 is the same as that of the intermediate lock nut 3.

[0029] It should be noted that both the male connector body 1 and the female connector body 2 are provided with metal terminals. The metal terminals are connected and fixed to the wires behind them. When the male connector body 1 and the female connector body 2 are plugged in, the metal terminals in the male connector body 1 and the female connector body 2 are also plugged into each other.

[0030] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A photovoltaic connector with shockproof, tensile and waterproof functions, comprising a male head body (1) and a female head body (2), the front end of the female head body (2) and the male head body (1) are both plug-in parts, the female head body (2) and the male head body (1) are plugged into each other, characterized in that: The port of the insertion part of the female head body (2) is provided with an annular embedding groove (4), the annular embedding groove (4) is provided with a sealing ring (5), the inner and outer rings of the sealing ring (5) are respectively sealed with the insertion part of the male head body (1) and the female head body (2), and the outer end of the sealing ring (5) abuts against a limiting pressure ring (6), the limiting pressure ring (6) is sleeved on the male head body (1), a limiting protrusion (101) is arranged on the outer wall of the insertion part of the male head body (1), the limiting protrusion (101) is axially limited with the limiting pressure ring (6), the limiting direction of the limiting protrusion (101) to the limiting pressure ring (6) is opposite to the insertion direction of the male head body (1), the outer side of the limiting pressure ring (6) is sleeved with an intermediate lock nut (3), the intermediate lock nut (3) is abutted and pressed with the limiting pressure ring (6), the abutting pressure of the intermediate lock nut (3) to the limiting pressure ring (6) is the same as the insertion direction of the male head body (1), and the intermediate lock nut (3) is connected with the insertion part of the female head body (2).

2. The shock-, pull-, and water-resistant photovoltaic connector of claim 1, wherein: The axial section of the sealing ring (5) is T-shaped.

3. The shock-, pull-, and water-resistant photovoltaic connector of claim 1, wherein: The intermediate lock nut (3) comprises a connecting sleeve (301), the connecting sleeve (301) is threadedly connected with the outer wall of the insertion part of the female head body (2) through a threaded structure, and the front end of the connecting sleeve (301) is provided with a stop ring (302), and the stop ring (302) is abutted and pressed with the limiting pressure ring (6).

4. The shock-, pull-, and water-resistant photovoltaic connector of claim 1, wherein: The limiting pressure ring (6) comprises a ring body (601), one end of the ring body (601) is provided with a plurality of annularly spaced limiting hook heads (602); the limiting hook heads (602) are axially limited with the limiting protrusion (101).

5. The shock-, pull-, and water-resistant photovoltaic connector of claim 1, wherein: The rear ends of the male head body (1) and the female head body (2) are provided with a tapered inner plug (7), the outer side of the tapered inner plug (7) is provided with an end lock nut (8), and the end lock nut (8) is threadedly connected with the male head body (1) or the female head body (2).

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