Shockproof and waterproof photovoltaic connector

Abstract

The invention relates to the photovoltaic field, in particular to a shockproof and waterproof photovoltaic connector, which comprises 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 matched, 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, the sealing clamping ring plays a good supporting and position limiting role on the middle lock nut, the male connector body and the female connector body are locked together through the middle lock nut, and the situation that the male connector body and the female connector body are loosened due to vibration, and water proofing fails is avoided; good waterproof and sealing effects of the connector are ensured, and electrical connection conductivity is more stable.

Description

Technical Field

[0001] The invention relates to the photovoltaic field, and in particular to a shockproof and waterproof photovoltaic connector. Background Art

[0002] Photovoltaic connectors are special electrical connectors specifically used in solar photovoltaic systems. Photovoltaic connectors are mainly used to connect solar panels to cables, inverters or other components for electrical connection. Due to the special environment and requirements of solar panels, photovoltaic connectors usually have characteristics such as waterproof, dustproof, 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 terminals of photovoltaic modules respectively. One or more O-rings are usually used between the male and female connectors for waterproof sealing. During use, the product is affected by swing and vibration, which leads to waterproof failure, thereby affecting the conductive performance inside the electrical connector. Therefore, a shockproof and waterproof photovoltaic connector with a new sealing structure is proposed. Summary of the invention

[0004] Based on the above problems, the purpose of the present invention is to provide a shockproof and waterproof photovoltaic connector. The present invention adopts the following technical solutions:

[0005] The present invention provides a shockproof and waterproof photovoltaic connector, comprising a male body and a female body, the front ends of the female body and the male body are both plug-in parts, the female body and the male body are plug-in matched with each other, a detachable intermediate lock nut is arranged on the outer wall of the plug-in part of the female body, an annular embedding groove is arranged at the port of the plug-in part of the female body, a sealing clamp ring is arranged in the annular embedding groove, inner and outer rings of the sealing clamp ring are respectively sealed and matched with the plug-in parts of the male body and the female body, and the outer end of the sealing clamp ring is against the intermediate lock nut, and the inner ring of the sealing clamp ring is limitedly matched with the plug-in part of the male body through a clamping structure.

[0006] Preferably, the clamping structure comprises an annular protrusion arranged on the outer wall of the male plug body plugging portion, and an annular groove arranged on the inner wall of the sealing clamp ring;

[0007] The number of the annular protrusion is the same as the number of the annular groove, and is at least one;

[0008] The annular protrusion and the annular groove are embedded and matched with each other in a one-to-one manner.

[0009] Preferably, the annular protrusion extends obliquely rearward of the male head body.

[0010] Preferably, the intermediate lock nut comprises a fastening sleeve, which is threadedly connected to the outer wall of the female head body plug-in portion through a threaded structure, and a pressure ring is provided at the front end of the fastening sleeve, which is pressed and fitted with the sealing clamp ring.

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

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

[0013] Compared with the prior art, the beneficial technical effects of the present invention are:

[0014] The present invention utilizes a clamping structure to limit the axial movement of the sealing clamp ring, and the intermediate lock nut is against the sealing clamp ring. With the help of the sealing clamp ring, the intermediate lock nut has a good supporting and position limiting effect. The intermediate lock nut locks the male head body and the female head body together, and the male and female heads will not become loose due to vibration, resulting in waterproof failure, thereby ensuring a good waterproof sealing effect of the connector and making the electrical connection conductive performance more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 This is a schematic structural diagram of a shockproof and waterproof photovoltaic connector in Embodiment 1 of the present invention;

[0017] Figure 2 It is a cross-sectional view of the shockproof and waterproof photovoltaic connector in the first embodiment of the present invention;

[0018] Figure 3 It is a cross-sectional view of the female head body in the first embodiment of the present invention;

[0019] Figure 4 for Figure 2 A partial enlarged view of the middle A;

[0020] Figure 5 A cross-sectional view of a lock nut according to an embodiment of the present invention;

[0021] Figure 6 It is a cross-sectional view of the shockproof and waterproof photovoltaic connector in the second embodiment of the present invention.

[0022] Explanation of the reference numerals: 1. male body; 2. female body; 3. intermediate lock nut; 301. fastening sleeve; 302. pressing ring; 4. annular embedding groove; 5. sealing collar; 6. snap-fit ​​structure; 601. annular protrusion; 602. annular groove; 7. conical inner plug; 8. end lock nut. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] Embodiment 1

[0025] like Figures 1 to 3 As shown, the present embodiment discloses a shockproof and waterproof photovoltaic connector, comprising a male body 1 and a female body 2, the front ends of the female body 2 and the male body 1 are both plug-in parts, the female body 2 and the male body 1 are plug-in matched with each other, a detachable intermediate lock nut 3 is arranged on the outer wall of the plug-in part of the female body 2, an annular embedding groove 4 is arranged at the port of the plug-in part of the female body 2, a sealing clamp 5 is arranged in the annular embedding groove 4, the inner and outer rings of the sealing clamp 5 are respectively sealed with the plug-in parts of the male body 1 and the female body 2, and the outer end of the sealing clamp 5 is against the intermediate lock nut 3, and the inner ring of the sealing clamp 5 is limitedly matched with the plug-in part of the male body 1 through the clamping structure 6.

[0026] The male body 1 and the female body 2 are sealed by a sealing collar 5, and the clamping structure 6 is used to limit the axial movement of the sealing collar 5. The intermediate lock nut 3 is against the sealing collar 5, and the sealing collar 5 is used to provide good support and position restriction for the intermediate lock nut 3. The intermediate lock nut 3 locks the male body 1 and the female body 2 together, and the male and female heads will not become loose due to vibration, resulting in waterproof failure, thereby ensuring a good waterproof sealing effect of the connector and making the electrical connection conductivity more stable.

[0027] like Figure 4 As shown, the clamping structure 6 includes an annular protrusion 601 arranged on the outer wall of the plug-in part of the male head body 1, and an annular groove 602 arranged on the inner wall of the sealing clamp ring 5; the number of the annular protrusion 601 and the annular groove 602 is the same, and there is at least one; the annular protrusion 601 and the annular groove 602 are embedded and matched with each other one by one. In this embodiment, the number of the annular protrusion 601 and the annular groove 602 are both one. Among them, the cross section of the annular protrusion 601 can be a triangle, trapezoid, rectangle, circle, etc. The cross section of the corresponding annular groove 602 is also designed to be the same shape as that of the annular groove 602.

[0028] In this embodiment, the annular protrusion 601 extends obliquely rearward of the male body 1. The annular embedding groove 4 is tapered, the opening of which gradually decreases along the connector insertion direction, and the outer ring surface of the sealing collar 5 in contact with the annular embedding groove 4 is a tapered surface.

[0029] like Figure 5 As shown, the intermediate lock nut 3 includes a fastening sleeve 301, which is threadedly connected to the outer wall of the plug-in part of the female head body 2 through a threaded structure. A pressure ring 302 is provided at the front end of the fastening sleeve 301, and the pressure ring 302 is pressed and matched with the sealing clamp ring 5.

[0030] like Figure 1 As shown, in this embodiment, the rear ends of the male body 1 and the female body 2 are both provided with a conical inner plug 7, and the outer side of the conical inner plug 7 is provided with an end lock nut 8, and the end lock nut 8 is threadedly connected with the male body 1 or the female body 2. The conical inner plug 7 is sleeved on the wire to tighten the wire, and the conical inner plug 7 is pressed against the rear ends of the male body 1 and the female body 2 by means of the end lock nut 8. In this embodiment, the structure of the end lock nut 8 is the same as that of the middle lock nut 3.

[0031] It should be noted that metal terminals are provided in both the male body 1 and the female body 2, and the metal terminals are connected and fixed to the wires at the rear. When the male body 1 and the female body 2 are plugged in, the metal terminals in the male body 1 and the female body 2 are also plugged in together.

[0032] Embodiment 2

[0033] like Figure 6 As shown, in this embodiment, the number of the annular protrusion 601 and the number of the annular groove 602 are both two. The rest of the structure in this embodiment is the same as that in the first embodiment.

[0034] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A shockproof and waterproof photovoltaic connector, comprising a male body (1) and a female body (2), the front ends of the female body (2) and the male body (1) are both plug-in parts, the female body (2) and the male body (1) are plug-in-matched with each other, characterized in that: A detachable intermediate lock nut (3) is arranged on the outer wall of the plug-in part of the female main body (2); an annular embedding groove (4) is arranged at the port of the plug-in part of the female main body (2); a sealing clamp ring (5) is arranged in the annular embedding groove (4); the inner and outer rings of the sealing clamp ring (5) are respectively sealed with the plug-in parts of the male main body (1) and the female main body (2); the outer end of the sealing clamp ring (5) abuts against the intermediate lock nut (3); the inner ring of the sealing clamp ring (5) is limitedly matched with the plug-in part of the male main body (1) through a clamping structure (6).

2. The shockproof and waterproof photovoltaic connector according to claim 1, characterized in that: The clamping structure (6) comprises an annular protrusion (601) arranged on the outer wall of the plug-in part of the male head body (1), and an annular groove (602) arranged on the inner wall of the sealing clamp ring (5); The number of the annular protrusion (601) is the same as the number of the annular groove (602), and is at least one; The annular protrusion (601) and the annular groove (602) are embedded and matched with each other in a one-to-one manner.

3. The shockproof and waterproof photovoltaic connector according to claim 2, characterized in that: The annular protrusion (601) extends obliquely rearward of the male head body (1).

4. The shockproof and waterproof photovoltaic connector according to claim 1, characterized in that: The intermediate lock nut (3) comprises a fastening sleeve (301), the fastening sleeve (301) being threadedly connected to the outer wall of the plug-in portion of the female head body (2) via a threaded structure, and a pressure ring (302) is provided at the front end of the fastening sleeve (301), and the pressure ring (302) is pressed and matched with the sealing clamp ring (5).

5. The shockproof and waterproof photovoltaic connector according to claim 1, characterized in that: 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 collar (5) in contact with the annular embedding groove (4) is a tapered surface.

6. The shockproof and waterproof photovoltaic connector according to claim 1, characterized in that: The rear ends of the male body (1) and the female body (2) are both provided with a conical inner plug (7), and the outer side of the conical inner plug (7) is provided with an end lock nut (8), and the end lock nut (8) is threadedly connected to the male body (1) or the female body (2).

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