Anti-falling photovoltaic connector with high weather resistance

Abstract

The utility model provides an anti-falling photovoltaic connector with strong weather resistance, and relates to the technical field of photovoltaic connectors. The right end of the negative connecting cylinder is in threaded connection with a negative connector, the right end of the negative connector is provided with threads, the right side of the negative connecting cylinder is provided with a positive connecting cylinder, the left end of the positive connecting cylinder is provided with internal threads, and the left end of the positive connecting cylinder is in threaded connection with a positive connector; according to the utility model, the connection thread bushing, the locking nut and the elastic convex plate are matched to form double fastening, so that the connector is effectively prevented from falling off due to vibration and external force; multiple sealing structures such as a first sealing ring and a sealing gasket are applied, invasion of external environmental factors is blocked, and the weather resistance is improved; by means of accurate cooperation of the positioning seats and the positioning grooves on the positive and negative electrode connectors, rapid assembly is realized, accurate connection is guaranteed, installation dislocation and rotation are avoided, and the problems of poor stability, weak weather resistance, inconvenient installation and the like of the existing photovoltaic connector are solved in all directions.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic connector technology, and in particular to a weather-resistant, anti-detachment photovoltaic connector. Background Technology

[0002] With the continued growth in global demand for clean energy, photovoltaic power generation, as a green and sustainable energy acquisition method, has been widely applied and rapidly developed. As a key component in photovoltaic systems for achieving electrical connections, the performance of photovoltaic connectors directly affects the stability and reliability of the entire photovoltaic system. This invention is a weather-resistant, anti-detachment photovoltaic connector. Existing photovoltaic connectors, during long-term outdoor use, are prone to loosening or even detachment due to external forces such as wind and equipment vibration. Furthermore, their simple sealing structure makes it difficult to effectively prevent the intrusion of external moisture and dust, causing the internal electrical components of the connector to easily become damp and oxidized, thus shortening the connector's lifespan. Utility Model Content

[0003] This disclosure relates to a weather-resistant, non-detachable photovoltaic connector to solve the technical problems mentioned in the background art.

[0004] In a first aspect, this disclosure provides a weather-resistant, anti-detachment photovoltaic connector, specifically comprising: a negative electrode connecting cylinder;

[0005] The negative electrode connecting cylinder has an internal thread on its right side, and a negative electrode connector is threaded onto the right end of the negative electrode connecting cylinder. The right end of the negative electrode connector is also threaded. A positive electrode connecting cylinder is located on the right side of the negative electrode connecting cylinder. The left end of the positive electrode connecting cylinder has an internal thread, and a positive electrode connector is threaded onto the left end of the positive electrode connecting cylinder. A connecting threaded sleeve is movably fitted onto the positive electrode connector, and the connecting threaded sleeve is threaded onto the negative electrode connector. Both the negative electrode connecting cylinder and the positive electrode connecting cylinder have elastic protrusions with chamfered edges. Both the negative electrode connecting cylinder and the positive electrode connecting cylinder have locking nuts threaded onto them. The locking nuts have mating grooves inside, and the elastic protrusions rest within the mating grooves.

[0006] In at least some embodiments,

[0007] Both the negative electrode connecting tube and the positive electrode connecting tube are equipped with a No. 1 sealing ring at their tail ends, and both the negative electrode connecting tube and the positive electrode connecting tube are equipped with plugs, with a flower basket fitted on the plugs.

[0008] In at least some embodiments,

[0009] A sealing gasket is installed between the negative electrode connector and the negative electrode connecting cylinder. A negative electrode core seat is installed inside the negative electrode connecting cylinder. An insert is installed on the negative electrode core seat. A first positioning groove and a second positioning groove are provided inside the negative electrode connector.

[0010] In at least some embodiments,

[0011] The positive electrode connector has a positive electrode core seat installed inside, and a plug is installed on the positive electrode core seat.

[0012] In at least some embodiments,

[0013] The positive electrode connector is equipped with a second sealing ring, and the positive electrode connector is provided with a first positioning seat and a second positioning seat, which respectively cooperate with the first positioning groove and the second positioning groove.

[0014] In at least some embodiments,

[0015] A No. 3 sealing ring is installed between the positive electrode connector and the positive electrode connecting cylinder.

[0016] In at least some embodiments,

[0017] Both the plug rod and the plug sleeve are made of copper, and the plug rod and the plug sleeve are electrically connected to the positive and negative poles of the cable, respectively.

[0018] This utility model provides a weather-resistant, anti-detachment photovoltaic connector with the following advantages:

[0019] In this invention, the negative and positive terminals are connected by a threaded connection sleeve, and a locking nut and elastic convex plate are designed to provide a double fastening effect when the locking nut is tightened. This greatly enhances the stability of the connection and effectively prevents the connector from falling off due to vibration, external force pulling, or other factors during use, thus ensuring the stable operation of the photovoltaic system.

[0020] Furthermore, in this invention, the No. 1 sealing ring installed at the tail of the negative electrode connecting cylinder and the positive electrode connecting cylinder, as well as the sealing gasket, No. 2 sealing ring, No. 3 sealing ring, and other multiple sealing structures between the connector head and the connecting cylinder, can effectively prevent external environmental factors such as rainwater, dust, and moisture from invading the connector, avoiding damage to internal parts due to moisture, oxidation, etc., significantly improving the weather resistance of the connector in complex outdoor environments and extending its service life.

[0021] Furthermore, in this invention, the first and second positioning seats on the positive terminal connector cooperate with the first and second positioning slots on the negative terminal connector to achieve precise positioning during installation, facilitating quick assembly. This also ensures the accuracy and consistency of the connection, prevents rotation between the negative and positive terminal connectors, and reduces the probability of installation errors. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0023] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0024] In the attached diagram:

[0025] Figure 1 A schematic diagram of the overall structure of this application is shown;

[0026] Figure 2 A schematic diagram of the locking nut portion of this application is shown;

[0027] Figure 3 A schematic diagram of the negative electrode connecting cylinder portion of this application is shown;

[0028] Figure 4 This application shows Figure 3 A magnified structural diagram of part A in the middle;

[0029] Figure 5 A schematic diagram of the structure of the left end portion of the negative electrode connector of this application is shown;

[0030] Figure 6 A schematic diagram of the structure of the right end portion of the negative electrode connector of this application is shown;

[0031] Figure 7 A schematic diagram of the positive electrode connecting cylinder portion of this application is shown;

[0032] Figure 8 A schematic diagram of the positive electrode connector portion of this application is shown.

[0033] List of reference numerals

[0034] 1. Negative electrode connecting tube; 11. Plug; 12. Basket; 13. No. 1 sealing ring; 14. Elastic convex plate; 15. Locking nut; 151. Mating groove; 16. Negative electrode connector; 161. Sealing gasket; 162. Negative electrode core seat; 1621. Insert; 163. No. 1 positioning groove; 164. No. 2 positioning groove;

[0035] 2. Positive electrode connecting tube; 21. Positive electrode connector; 211. No. 3 sealing ring; 212. No. 2 sealing ring; 22. Positive electrode core seat; 221. Insert rod; 23. No. 2 positioning seat; 24. No. 1 positioning seat; 25. Connecting threaded sleeve. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0037] Please refer to Figures 1 to 8 Example 1:

[0038] This utility model proposes a weather-resistant, anti-detachment photovoltaic connector, comprising: a negative electrode connecting cylinder 1;

[0039] The negative electrode connecting cylinder 1 has an internal thread on its right side. A negative electrode connector 16 is threaded onto the right end of the negative electrode connecting cylinder 1. A positive electrode connecting cylinder 2 is located on the right side of the negative electrode connecting cylinder 1. The positive electrode connecting cylinder 2 has an internal thread on its left end. A positive electrode connector 21 is threaded onto the left end of the positive electrode connecting cylinder 2. A connecting threaded sleeve 25 is movably fitted onto the positive electrode connector 21. The connecting threaded sleeve 25 is threaded onto the negative electrode connector 16. Both the negative electrode connecting cylinder 1 and the positive electrode connecting cylinder 2 are provided with elastic protrusions 14. The elastic protrusions 14 are provided with chamfered edges. Both the negative electrode connecting cylinder 1 and the positive electrode connecting cylinder 2 are threaded with locking nuts 15. The locking nuts 15 have a mating groove 151 inside. The elastic protrusions 14 rest in the mating groove 151.

[0040] In this embodiment of the disclosure,

[0041] Both the negative terminal connecting cylinder 1 and the positive terminal connecting cylinder 2 are equipped with a No. 1 sealing ring 13 at their tail ends, and both are equipped with a plug 11 at their tail ends. A basket 12 is fitted onto the plug 11. The function of the basket 12 is as follows: The No. 1 sealing ring 13 fits tightly against the tail ends of the negative terminal connecting cylinder 1 and the positive terminal connecting cylinder 2, effectively filling the gap between the connecting cylinder and the external environment, forming a sealing barrier to prevent rainwater, moisture, dust and other external debris from entering the connector. Together with other sealing rings and sealing gaskets 161, it forms a multi-seal system, further improving the waterproof and dustproof performance of the connector, preventing internal electrical components from malfunctioning due to moisture or dust, and extending the service life of the connector. When the locking nut 15 is tightened, the basket 12 is squeezed and locked onto the plug 11, thereby tightening the binding force of the basket 12 on the cable, realizing the locking and fixing of the cable, preventing the cable from shifting due to external forces, and ensuring the stability and reliability of the electrical connection.

[0042] Example 2, based on Example 1,

[0043] A sealing gasket 161 is installed between the negative electrode connector 16 and the negative electrode connecting cylinder 1. A negative electrode core seat 162 is installed inside the negative electrode connecting cylinder 1, and an insert 1621 is installed on the negative electrode core seat 162. The negative electrode connector 16 has a first positioning groove 163 and a second positioning groove 164 inside. The positive electrode connector 21 has a positive electrode core seat 22 inside, and an insert 221 is installed on the positive electrode core seat 22. A second sealing ring 212 is installed on the positive electrode connector 21, and a first positioning seat 24 and a second positioning seat 23 are provided on the positive electrode connector 21. The first positioning seat 24 and the second positioning seat 23 mate with the first positioning groove 163 and the second positioning groove 164, respectively. A third sealing ring 211 is installed between the positive electrode connector 21 and the positive electrode connecting cylinder 2, and its function is to act as a sealing gasket between the negative electrode connector 16 and the negative electrode connecting cylinder 1. The sealing rings 161, 211 (the third sealing ring 211 between the positive connector 21 and the positive connector cylinder 2), and 212 (the second sealing ring 212 on the positive connector 21) form sealing structures at different connection points. These structures effectively prevent external moisture, dust, and other impurities from entering the connector, preventing short circuits and oxidation of electrical components caused by moisture and dust, and further enhancing the connector's waterproof and dustproof capabilities. The first positioning groove 163 and the second positioning groove 164 inside the negative connector 16 cooperate with the first positioning seat 24 and the second positioning seat 23 on the positive connector 21. During installation, these positioning structures can quickly and accurately determine the relative positions of the positive connector 21 and the negative connector 16, avoiding misalignment and preventing rotation between the negative connector 16 and the positive connector 21.

[0044] Example 3, based on Examples 1 and 2,

[0045] Both the plug rod 221 and the plug sleeve 1621 are made of copper, and the plug rod 221 and the plug sleeve 1621 are electrically connected to the positive and negative poles of the cable, respectively. Their function is that the plug sleeve 1621 on the negative pole core seat 162 and the plug rod 221 on the positive pole core seat 22 are made of copper. Copper has excellent conductivity and stability, which greatly reduces the loss of electrical energy during transmission.

[0046] The working principle of this embodiment is as follows: During the assembly stage, the negative electrode connector 16 is screwed onto the right internal thread of the negative electrode connecting cylinder 1 via its left-side thread, and the sealing gasket 161 ensures the sealing of the connection between the two. The positive electrode connector 21 is screwed onto the left-side thread of the positive electrode connecting cylinder 2 via its right-end thread, and the third sealing ring 211 ensures the seal at this point. The first positioning seat 24 and the second positioning seat 23 on the positive electrode connector 21 cooperate with the first positioning groove 163 and the second positioning groove 164 on the negative electrode connector 16 to achieve precise positioning of the positive electrode connector 21 and the negative electrode connector 16. Subsequently, the connecting threaded sleeve 25 is screwed onto the negative electrode connector 16 to securely connect the positive electrode connector 21 and the negative electrode connector 16. Finally, the locking nut 15 is tightened. The elastic protruding plate 14 is inserted into the mating groove 151, locking the basket 12 onto the plug 11, further securing the cable and enhancing the overall connection stability. The insertion rod 221 is inserted into the insertion tube 1621. With the good conductivity of copper, a stable current transmission channel is formed, realizing a reliable electrical connection between the positive and negative poles of the cable in the photovoltaic system, ensuring efficient power transmission. The multiple sealing structures, including the first sealing ring 13, the sealing gasket 161, the second sealing ring 212, and the third sealing ring 211, as well as the protective function of the plug 11, prevent rainwater, dust, moisture, and other external environmental factors from entering the connector, preventing internal electrical components from getting damp, oxidized, or affected by debris, improving the connector's weather resistance, and ensuring its long-term stable operation in outdoor environments.

[0047] The following points should be noted in this article:

[0048] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0049] 2. Where there is no conflict, the embodiments and features described herein can be combined to obtain new embodiments. The above are merely specific implementations of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed herein should be included within the scope of protection of this disclosure.

Claims

1. A weather-resistant, anti-detachment photovoltaic connector, comprising: Negative electrode connecting cylinder (1); characterized in that, The negative electrode connecting cylinder (1) has an internal thread on its right side, and a negative electrode connector (16) is threaded onto the right end of the negative electrode connecting cylinder (1). The right end of the negative electrode connector (16) is also threaded. A positive electrode connecting cylinder (2) is located on the right side of the negative electrode connecting cylinder (1). The left end of the positive electrode connecting cylinder (2) has an internal thread, and a positive electrode connector (21) is threaded onto the left end of the positive electrode connecting cylinder (2). A connecting threaded sleeve (2) is movably fitted onto the positive electrode connector (21). 5) The threaded sleeve (25) is screwed onto the negative terminal connector (16), and both the negative terminal connector (1) and the positive terminal connector (2) are provided with elastic protrusions (14). The elastic protrusions (14) are provided with chamfered edges. Both the negative terminal connector (1) and the positive terminal connector (2) are threaded onto locking nuts (15). The locking nuts (15) are provided with mating grooves (151) inside, and the elastic protrusions (14) are pressed against the mating grooves (151).

2. The weather-resistant, anti-detachment photovoltaic connector according to claim 1, characterized in that, Both the negative electrode connecting tube (1) and the positive electrode connecting tube (2) are equipped with a No. 1 sealing ring (13) at their tail ends, and both the negative electrode connecting tube (1) and the positive electrode connecting tube (2) are equipped with a plug (11) at their tail ends, with a flower basket (12) fitted on the plug (11).

3. The weather-resistant, anti-detachment photovoltaic connector according to claim 1, characterized in that, A sealing gasket (161) is installed between the negative electrode connector (16) and the negative electrode connecting cylinder (1). A negative electrode core seat (162) is installed inside the negative electrode connecting cylinder (1). A plug (1621) is installed on the negative electrode core seat (162). A first positioning groove (163) and a second positioning groove (164) are provided inside the negative electrode connector (16).

4. A weather-resistant, anti-detachment photovoltaic connector according to claim 1, characterized in that, The positive electrode connector (21) has a positive electrode core seat (22) installed inside, and a plug (221) is installed on the positive electrode core seat (22).

5. A weather-resistant, anti-detachment photovoltaic connector according to claim 4, characterized in that, The positive terminal connector (21) is equipped with a second sealing ring (212), and the positive terminal connector (21) is provided with a first positioning seat (24) and a second positioning seat (23), which are respectively matched with the first positioning groove (163) and the second positioning groove (164).

6. A weather-resistant, anti-detachment photovoltaic connector according to claim 5, characterized in that, A No. 3 sealing ring (211) is installed between the positive electrode connector (21) and the positive electrode connecting cylinder (2).

7. A weather-resistant, anti-detachment photovoltaic connector according to claim 4, characterized in that, Both the plug rod (221) and the plug tube (1621) are made of copper, and the plug rod (221) and the plug tube (1621) are electrically connected to the positive and negative poles of the cable, respectively.

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