Shockproof and waterproof photovoltaic connector

Abstract

The utility model relates to the photovoltaic field, and especially relates to a shockproof 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, the outer wall of the plugging part of the female head main body is provided with a detachable middle lock nut, and the port of the plugging part of the female head main body is provided with an annular embedding groove. A sealing clamping ring is arranged in the annular embedding groove, the outer end of the sealing clamping ring abuts against the middle lock nut, and the inner ring of the sealing clamping ring is matched with the inserting portion of the male connector body in a limiting mode through a clamping structure. Axial movement of the sealing clamping ring is limited through the clamping structure, the middle lock nut abuts against the sealing clamping ring, good supporting and position limiting effects on the middle lock nut are achieved through the sealing clamping 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. Good waterproof and sealing effects of the connector are ensured, and electrical connection conductivity is more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic field especially relates to a shockproof, waterproof photovoltaic connector. BACKGROUND

[0002] The photovoltaic connector is a special electrical connector, which is specially used in solar photovoltaic systems. The photovoltaic connector is mainly used for electrical connection between solar cell panels and cables, inverters or other components. Due to the special environment and requirements of solar cell panels, the photovoltaic connector usually has the characteristics of waterproof, dustproof, high temperature resistance and ultraviolet resistance, to ensure the safe and reliable operation of the system.

[0003] The traditional photovoltaic connector is mainly divided into male head and female head, which respectively represent the positive and negative lead-out ends of the photovoltaic assembly. One or more O-rings are used for waterproof sealing between the male head and the female head. During use, the waterproof function is affected by product swing, vibration and other factors, which affects the electrical conductivity of the electrical connector. Therefore, a shockproof and waterproof photovoltaic connector with a new sealing structure is proposed. SUMMARY

[0004] Based on the above problems, the utility model aims to provide a shockproof and waterproof photovoltaic connector. The utility model adopts the following technical scheme:

[0005] The utility model provides a shockproof and waterproof photovoltaic connector, which comprises a male head main body and a female head main body. The front ends of the female head main body and the male head main body are plug-in parts. The female head main body and the male head main body are plug-in matched. A detachable intermediate lock nut is arranged on the outer wall of the plug-in part of the female head main body. An annular embedded groove is arranged at the port of the plug-in part of the female head main body. A sealing ring is arranged in the annular embedded groove. The inner and outer rings of the sealing ring are respectively sealed with the plug-in parts of the male head main body and the female head main body. The outer end of the sealing ring abuts against the intermediate lock nut. The inner ring of the sealing ring is limited and matched with the plug-in part of the male head main body through a clamping structure.

[0006] Preferably, the clamping structure comprises an annular protrusion arranged on the outer wall of the plug-in part of the male head main body, and an annular groove arranged on the inner wall of the inner ring of the sealing ring.

[0007] The number of the annular protrusions is the same as that of the annular grooves, and at least one.

[0008] The annular protrusions and the annular grooves are one-to-one embedded and matched.

[0009] Preferably, the annular protrusion extends to the oblique rear of the male head main body.

[0010] Preferably, the intermediate lock nut comprises a fastening sleeve which is threadedly connected with the outer wall of the female head body insertion site through a threaded structure, and a compression ring is arranged at the front end of the fastening sleeve and abuts against the sealing ring.

[0011] Preferably, the annular embedding groove is tapered, and the opening of the annular embedding groove gradually decreases in the insertion direction, and the outer ring surface of the sealing ring in contact with the annular embedding groove is a tapered surface.

[0012] Preferably, the rear end of the male head body and the female head body are both provided with a tapered inner plug, and an end lock nut is arranged on the outer side of the tapered inner plug and is threadedly connected with the male head body or the female head body.

[0013] Compared with the prior art, the utility model has the beneficial technical effects that:

[0014] The utility model utilizes the clamping structure to limit the axial movement of the sealing ring, and the intermediate lock nut abuts against the sealing ring, so that the sealing ring plays a good supporting and position limiting role on the intermediate lock nut, the intermediate lock nut locks the male head body and the female head body together, and the waterproof effect is not affected by the loosening of the male head and the female head due to vibration, thereby ensuring the good waterproof sealing effect of the connector and making the electrical connection more stable. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further described in connection with the drawings.

[0016] Figure 1 It is a structure schematic view of the shockproof and waterproof photovoltaic connector in the embodiment one of the utility model;

[0017] Figure 2 It is a sectional view of the shockproof and waterproof photovoltaic connector in the embodiment one of the utility model;

[0018] Figure 3 It is a sectional view of the female head body in the embodiment one of the utility model;

[0019] Figure 4 It is Figure 2 It is a local enlarged view of the middle A;

[0020] Figure 5 It is a sectional view of the intermediate lock nut in the embodiment one of the utility model;

[0021] Figure 6 It is a sectional view of the shockproof and waterproof photovoltaic connector in the embodiment two of the utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Male head body; 2. Female head body; 3. Middle lock nut; 301. Fastening sleeve; 302. Pressure ring; 4. Annular embedded groove; 5. Sealing ring; 6. Snap-fit ​​structure; 601. Annular protrusion; 602. Annular groove; 7. Conical inner plug; 8. End lock nut. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] like Figures 1 to 3 As shown, this embodiment discloses a shockproof and waterproof photovoltaic connector, including a male head body 1 and a female head body 2. The front ends of both the female head body 2 and the male head body 1 are insertion parts. The female head body 2 and the male head body 1 are inserted into each other. A detachable intermediate locking nut 3 is provided on the outer wall of the insertion part of the female head body 2. An annular embedding groove 4 is provided at the port of the insertion part of the female head body 2. A sealing ring 5 is provided in the annular embedding groove 4. The inner and outer rings of the sealing ring 5 are respectively sealed with the insertion parts of the male head body 1 and the female head body 2. The outer end of the sealing ring 5 abuts against the intermediate locking nut 3. The inner ring of the sealing ring 5 is limited to the insertion part of the male head body 1 through a snap-fit ​​structure 6.

[0026] The male connector body 1 and the female connector body 2 are sealed by a sealing ring 5. At the same time, the axial movement of the sealing ring 5 is restricted by the snap-fit ​​structure 6. The intermediate locking nut 3 rests against the sealing ring 5. The sealing ring 5 provides good support and position restriction for the intermediate locking nut 3. The intermediate locking nut 3 locks the male connector body 1 and the female connector body 2 together, preventing the male and female connectors from loosening due to vibration and causing waterproof failure. This ensures the connector has a good waterproof sealing effect and makes the electrical connection conductivity more stable.

[0027] like Figure 4 As shown, the snap-fit ​​structure 6 includes an annular protrusion 601 on the outer wall of the insertion portion of the male connector body 1, and an annular groove 602 on the inner wall of the sealing ring 5. The number of annular protrusions 601 and annular grooves 602 is the same, and there is at least one. The annular protrusion 601 and the annular groove 602 are mutually corresponding and interlocked. In this embodiment, there is one annular protrusion 601 and one annular groove 602. The cross-section of the annular protrusion 601 can be triangular, trapezoidal, rectangular, circular, or other shapes. The cross-section of the corresponding annular groove 602 is also designed to match the same shape.

[0028] In the embodiment, the annular protrusion 601 extends to the rear of the male head body 1. The annular embedding groove 4 is tapered, and the opening of the annular embedding groove 4 gradually decreases in the direction of the connector insertion. The outer ring surface of the sealing ring 5 in contact with the annular embedding groove 4 is tapered.

[0029] As shown in Figure 5 The intermediate lock nut 3 comprises a fastening sleeve 301 which is threadedly connected with the outer wall of the insertion part of the female head body 2. The front end of the fastening sleeve 301 is provided with a pressing ring 302 which is in abutting contact with the sealing ring 5.

[0030] As shown in Figure 1 In the embodiment, the rear end of the male head body 1 and the female head body 2 are both provided with a tapered inner plug 7. The outer side of the tapered inner plug 7 is provided with an end lock nut 8 which is threadedly connected with the male head body 1 or the female head body 2. The tapered inner plug 7 is sleeved on the wire for clamping the wire, and the tapered inner plug 7 is abutted against the rear end of the male head body 1 and the female head body 2 by means of the end lock nut 8. In the embodiment, the structure of the end lock nut 8 is the same as that of the intermediate lock nut 3.

[0031] It should be noted that the metal terminal is arranged in the male head body 1 and the female head body 2, and the metal terminal is connected and fixed with the wire at the rear. When the male head body 1 and the female head body 2 are inserted, the metal terminals in the male head body 1 and the female head body 2 are also inserted together.

[0032] Embodiment Two

[0033] As shown in Figure 6 In the embodiment, the number of the annular protrusion 601 and the annular groove 602 is two. The remaining structures in the embodiment are the same as those in the first embodiment.

[0034] The above-described embodiments are only used to describe the preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements of the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A shockproof and waterproof photovoltaic connector, 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 outer wall of the plug-in part of the female head body (2) is provided with a detachable intermediate lock nut (3), the port of the plug-in 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 plug-in parts of the male head body (1) and the female head body (2), and the outer end of the sealing ring (5) abuts against the intermediate lock nut (3), and the inner ring of the sealing ring (5) is limitedly matched with the plug-in part of the male head body (1) through a clamping structure (6).

2. The shock and water resistant photovoltaic connector of claim 1, wherein: The clamping structure (6) comprises an annular protrusion (601) provided on the outer wall of the plug-in part of the male head body (1), and an annular groove (602) provided on the inner wall of the sealing ring (5). The number of the annular protrusions (601) and the annular grooves (602) is the same, and is at least one. The annular protrusions (601) and the annular grooves (602) are one-to-one embeddedly matched with each other.

3. The shock and water resistant photovoltaic connector of claim 2, wherein: The annular protrusions (601) extend to the rear of the male head body (1).

4. The shock and water resistant photovoltaic connector of claim 1, wherein: The intermediate lock nut (3) comprises a fastening sleeve (301), the fastening sleeve (301) is threadedly connected with the outer wall of the plug-in part of the female head body (2) through a threaded structure, the front end of the fastening sleeve (301) is provided with a compression ring (302), and the compression ring (302) is abuttingly matched with the sealing ring (5).

5. The shock and water resistant photovoltaic connector of claim 1, wherein: The annular embedding groove (4) is tapered, the opening of the annular embedding groove (4) gradually decreases in the insertion direction, and the outer ring surface of the sealing ring (5) in contact with the annular embedding groove (4) is a tapered surface.

6. The shock and water resistant photovoltaic connector of claim 1, wherein: The rear end of the male head body (1) and the female head body (2) is 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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