A photovoltaic connector with a backstop structure

Abstract

This utility model discloses a photovoltaic connector with an anti-loosening structure, belonging to the field of photovoltaic connector technology. It includes a male and female connector bodies that mate and interlock. An intermediate locking nut is provided at the insertion end of both the male and female connector bodies. A locking tooth structure is provided between the intermediate locking nut and the female connector body to prevent loosening of the intermediate locking nut. An anti-detachment basket is provided between the intermediate locking nut and the male connector body to prevent the male connector body from falling off. Cables are respectively inserted into the opposite ends of the male and female connector bodies. A conical inner plug is fitted onto the end of the cable and the end of the male / female connector body away from the intermediate locking nut. A nut is fitted onto the outer side of the conical inner plug, and the nut is threadedly connected to the male / female connector body. This utility model utilizes the locking tooth structure to limit the risk of the intermediate locking nut loosening and falling off due to vibration, accidental contact, etc., after locking, thus ensuring a good waterproof sealing effect and making the electrical connection more stable.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic connector technology, and in particular to a photovoltaic connector with a backstop structure. Background Technology

[0002] Photovoltaic connectors are key components in solar photovoltaic systems, used to connect modules, cables, inverters, and other equipment. Their main functions are to achieve electrical connections, transmit electrical energy, and ensure the safety and reliability of the system. During operation, photovoltaic systems may experience continuous vibrations due to wind, equipment operation, or vehicle bumps. This can cause the friction between the nut and threads of the photovoltaic connector (the part connecting the male and female ends) to gradually decrease, eventually leading to loosening and potentially causing poor contact, leakage, or even system failure. Therefore, this invention proposes a photovoltaic connector with a backlash prevention structure. Utility Model Content

[0003] The purpose of this invention is to provide a photovoltaic connector with a backstop structure to solve the problems mentioned above.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a photovoltaic connector with an anti-retraction structure, comprising a male connector body and a female connector body that mate and interlock. The female connector body has a pin inside, and the end of the male connector body has a sleeve that mates with the pin. An intermediate locking nut is provided at the interlocking end of the male and female connector bodies. A locking tooth structure is provided between the intermediate locking nut and the female connector body to prevent the intermediate locking nut from loosening. An anti-detachment basket is provided between the intermediate locking nut and the male connector body to prevent the male connector body from falling off. Cables are respectively inserted into the opposite ends of the male and female connector bodies. A conical inner plug is fitted onto the end of the cable and the male / female connector body away from the intermediate locking nut. A nut is fitted onto the outer side of the conical inner plug, and the nut is threadedly connected to the male / female connector body.

[0006] Furthermore, the locking tooth structure includes L-shaped rods symmetrically distributed and integrally formed at the insertion end of the female head body, and the ends of the L-shaped rods are integrally formed with upwardly inclined sharp teeth; the middle locking nut has a plurality of locking tooth grooves on its circumference near the female head body, which cooperate with the sharp teeth, and the sharp teeth are inserted into the locking tooth grooves.

[0007] Furthermore, the female head body has a protrusion at the insertion end, and the L-shaped rod is integrally formed on the upper surface of the protrusion.

[0008] Furthermore, the female head body insertion end is provided with an external thread that connects to the intermediate lock nut thread, and one side of the inner wall of the locking groove is a chamfered surface, the direction of the chamfered surface being opposite to the direction of the external thread.

[0009] Furthermore, the L-shaped rod is made of an elastic material.

[0010] Furthermore, the anti-loosening flower basket includes a flower basket body, with a limiting ring integrally formed on the middle position of the outer side wall of the flower basket body, the lower end face of the limiting ring abutting against the upper end face of the female head body insertion end; the upper end of the flower basket body is integrally formed with a plurality of claws, the claws being circumferentially distributed; the bottom of the plurality of claws abutting against the upper end face of the insertion part of the male head body insertion end, and the top abutting against the inner side wall of the intermediate lock nut.

[0011] Furthermore, the inner wall of the main body of the flower basket is provided with a plug groove that matches the plug part.

[0012] Furthermore, the upper end face of the female head body plug-in end is provided with an annular embedding groove for engaging the lower part of the flower basket body.

[0013] Furthermore, a sealing ring is provided inside the annular embedded groove.

[0014] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0015] This utility model of a photovoltaic connector with an anti-reverse structure uses a locking tooth structure to limit the risk of the intermediate lock nut loosening and falling off due to vibration, accidental contact, or other reasons after locking, thus ensuring the photovoltaic connector has a good waterproof sealing effect and making the electrical connection conductivity more stable. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the photovoltaic connector with anti-retraction structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the photovoltaic connector with anti-retraction structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the main structure of the mother head;

[0020] Figure 4 This is a schematic diagram of the intermediate lock nut structure;

[0021] Figure 5 A schematic diagram of the installation state of the anti-loosening flower basket;

[0022] Figure 6A sectional view of the structure in the installation state of the anti-loosening flower basket;

[0023] Figure 7 A schematic diagram of the anti-loosening flower basket structure;

[0024] Explanation of reference numerals in the attached diagram: 1. Male connector body; 2. Female connector body; 3. Middle lock nut; 4. Locking tooth structure; 5. Nut; 6. Cable; 7. Conical inner plug; 8. Pin; 9. Anti-detachment basket; 10. Insert sleeve;

[0025] 101. Connecting part;

[0026] 201. Boss; 202. External thread;

[0027] 401. L-shaped rod; 402. Pointed tooth section; 403. Tooth groove;

[0028] 901. Flower basket body; 902. Limiting ring; 903. Claw; 904. Insertion groove. Detailed Implementation

[0029] like Figure 1-7 As shown, a photovoltaic connector with a locking structure includes a male connector body 1 and a female connector body 2 that mate and interlock. The female connector body 2 has a pin 8 inside. The end of the male connector body 1 has a sleeve 10 that mates with the pin 8. A central locking nut 3 is installed at the interlocking ends of the male connector body 1 and the female connector body 2. Cables 6 are respectively inserted into the opposite ends of the male connector body 1 and the female connector body 2. A conical inner plug 7 is fitted onto the end of the cable 6 away from the central locking nut 3. A nut 5 is fitted onto the outer side of the conical inner plug 7, and the nut 5 is threadedly connected to the male connector body 1 and the female connector body 2.

[0030] A locking tooth structure 4 is installed between the intermediate lock nut 3 and the female head body 2 to restrict the loosening of the intermediate lock nut 3. The locking tooth structure 4 includes L-shaped rods 401 symmetrically distributed and integrally formed at the insertion end of the female head body 2. The end of the L-shaped rod 401 is integrally formed with upwardly inclined sharp teeth 402. The intermediate lock nut 3 has several locking tooth grooves 403 on its circumference near the female head body 2, which cooperate with the sharp teeth 402. The sharp teeth 402 are inserted into the locking tooth grooves 403 to form an anti-loosening and anti-retraction structure to prevent the intermediate lock nut 3 from rotating and falling off.

[0031] The female head body 2 has a boss 201 at the insertion end. The L-shaped rod 401 is integrally formed on the upper surface of the boss 201. The boss 201 provides the necessary movement space for the L-shaped rod 401 when it is opened by a special tool, while preventing the L-shaped rod 401 from exceeding the outer diameter of the female head body 2 under normal conditions, so as to make it look beautiful.

[0032] The female head body 2 is fitted with an external thread 202 that is threadedly connected to the intermediate lock nut 3. One side of the inner wall of the tooth groove 403 is a beveled surface. The direction of the beveled surface is opposite to the direction of rotation of the external thread 202. The beveled surface allows the pointed tooth 402 to be easily inserted into the tooth groove 403 along the beveled surface.

[0033] The L-shaped rod 401 is made of elastic material. Because it has a certain degree of elasticity, when disassembly is required, the L-shaped rod 401 is pressed down with a tool, the pointed tooth 402 moves down in the vertical direction, and the intermediate lock nut 3 is rotated in the opposite direction to achieve disassembly and reuse of the intermediate lock nut 3.

[0034] An anti-detachment basket 9 is installed between the intermediate lock nut 3 and the male head body 1 to prevent the male head body 1 from falling off. The anti-detachment basket 9 includes a basket body 901, and a limiting ring 902 is integrally formed on the middle position of the outer side wall of the basket body 901. The lower end face of the limiting ring 902 abuts against the upper end face of the insertion end of the female head body 2. Several claws 903 are integrally formed on the upper end of the basket body 901. The claws 903 are circumferentially distributed. The bottom of the claws 903 abuts against the upper end face of the insertion part 101 of the insertion end of the male head body 1, and the top abuts against the inner side wall of the intermediate lock nut 3.

[0035] The inner side wall of the flower basket body 901 is provided with a plug groove 904 that cooperates with the plug part 101.

[0036] The upper end face of the female head body 2 has an annular embedding groove for engaging the lower part of the flower basket body 901.

[0037] A sealing ring is installed inside the annular embedded groove for waterproofing.

[0038] The installation process of this utility model is as follows:

[0039] First, place the sealing ring in the annular groove of the female head body 2 insertion end, and then lock the anti-detachment basket 9 in the annular groove of the female head body 2 insertion end. Then, rotate the intermediate lock nut 3 so that its threaded connection is on the external thread 202 of the female head body 2. After rotating to the bottom, the pointed tooth 402 is inserted into the tooth groove 403 along the inclined surface to prevent the intermediate lock nut 3 from turning back and loosening. At the same time, when rotating the intermediate nut 3, the pin 8 of the female head body 2 will be inserted into the sleeve 10 of the male head body 1 until the insertion part 101 of the male head body 1 is inserted into the insertion groove 904 of the anti-detachment basket 9, and the bottom of the claw 903 is lower than the upper surface of the insertion part 101 of the male head body 1 insertion end, to prevent the male head body 1 from detaching from the female head body 2 and achieve quick insertion and installation.

[0040] 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 a backlash prevention structure, characterized in that: The device includes a male connector body (1) and a female connector body (2) that are fitted together. The female connector body (2) has a pin (8) inside. The end of the male connector body (1) has a sleeve (10) that mates with the pin (8). The insertion ends of the male connector body (1) and the female connector body (2) are provided with intermediate locking nuts (3). A locking tooth structure (4) is provided between the intermediate locking nut (3) and the female connector body (2) to restrict the loosening of the intermediate locking nut (3). A detachable basket (9) is provided between the head bodies (1) to prevent the male head body (1) from falling off; a cable (6) is inserted into one end of the male head body (1) and the female head body (2) respectively, and a conical inner plug (7) is fitted on the end of the cable (6) away from the middle lock nut (3) of the male head body (1) / female head body (2), and a nut (5) is provided on the outside of the conical inner plug (7), and the nut (5) is threadedly connected to the male head body (1) / female head body (2).

2. The photovoltaic connector with anti-reverse structure according to claim 1, characterized in that: The locking tooth structure (4) includes L-shaped rods (401) that are symmetrically distributed and integrally formed at the insertion end of the female head body (2). The ends of the L-shaped rods (401) are integrally formed with upwardly inclined sharp teeth (402). The intermediate locking nut (3) has a plurality of locking tooth grooves (403) that cooperate with the sharp teeth (402) on one circumference near the female head body (2). The sharp teeth (402) are inserted into the locking tooth grooves (403).

3. The photovoltaic connector with anti-reverse structure according to claim 2, characterized in that: The female head body (2) has a boss (201) at the insertion end, and the L-shaped rod (401) is integrally formed on the upper surface of the boss (201).

4. The photovoltaic connector with anti-reverse structure according to claim 2, characterized in that: The female head body (2) has an external thread (202) that is threaded to the intermediate lock nut (3) at the insertion end. One side of the inner wall of the locking groove (403) is a chamfered surface, and the direction of the chamfered surface is opposite to the direction of the external thread (202).

5. The photovoltaic connector with anti-reverse structure according to claim 2, characterized in that: The L-shaped rod (401) is made of elastic material.

6. The photovoltaic connector with anti-reverse structure according to claim 1, characterized in that: The anti-loosening flower basket (9) includes a flower basket body (901), and a limiting ring (902) is integrally formed on the middle position of the outer side wall of the flower basket body (901). The lower end face of the limiting ring (902) abuts against the upper end face of the insertion end of the female head body (2). Several claws (903) are integrally formed on the upper end of the flower basket body (901), and the claws (903) are circumferentially distributed. The bottom of the several claws (903) abuts against the upper end face of the insertion part (101) of the insertion end of the male head body (1), and the top abuts against the inner side wall of the intermediate lock nut (3).

7. The photovoltaic connector with anti-reverse structure according to claim 6, characterized in that: The inner wall of the main body of the flower basket (901) is provided with a plug groove (904) that cooperates with the plug part (101).

8. The photovoltaic connector with anti-reverse structure according to claim 6, characterized in that: The upper end face of the female head body (2) is provided with an annular embedding groove that engages with the lower part of the flower basket body (901).

9. The photovoltaic connector with anti-reverse structure according to claim 8, characterized in that: A sealing ring is provided inside the annular embedded groove.

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