Shielding lightning protection electric connector
By using a symmetrical left and right protective sleeve design, combined with fixing components and waterproof sleeves, the problems of difficult disassembly and insufficient waterproof performance of electrical connectors are solved, achieving convenient installation, firm fixation and efficient waterproofing.
Patent Information
- Application Number
- CN202520277984.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-21
AI Technical Summary
The insulating sleeves of existing electrical connectors are difficult to remove and tend to stick together after prolonged use, increasing the risk of damage during disassembly, and their waterproof performance is insufficient.
The design features a symmetrical left and right protective sleeve, which, through the cooperation of fixing components and snap-fit seats, enables convenient installation and secure fixation. Combined with the design of waterproof rubber sleeve and rotating sleeve, it improves insulation protection and waterproof performance.
It enables convenient installation and secure fixing of electrical connectors, enhances insulation protection and waterproof performance, reduces disassembly difficulty and damage risk, and improves operational convenience.
Smart Images

Figure CN223771418U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical connector technology, and in particular to a shielded lightning protection electrical connector. Background Technology
[0002] In modern electronic devices and electrical systems, electrical connectors are key components for achieving circuit connections and signal transmission. The stability and reliability of their performance are of paramount importance, especially in special environments such as areas with lightning strike risks or places sensitive to electromagnetic interference. Electrical connectors not only need to have good electrical connection performance, but also effective shielding and lightning protection functions.
[0003] Existing electrical connectors typically use sleeve-type insulating sleeves, which are mainly installed by simple direct connection. When maintenance or repair of electrical connectors is required, disassembling the sleeve-type insulating sleeve also faces difficulties. After long-term use, the sleeve and electrical connector may stick together due to the accumulation of dust and dirt or material aging, making the disassembly process extremely difficult. Operators may need to use additional tools, such as pry bars, to forcibly remove the insulating sleeve, which undoubtedly further increases the risk of damaging the electrical connector. Therefore, the above problems need to be improved. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a shielded lightning protection electrical connector.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a shielded lightning protection electrical connector, comprising an electrical connector, wherein an insulating protective sleeve is fitted onto the electrical connector, the insulating protective sleeve being divided into a symmetrically arranged left protective sleeve and a right protective sleeve, the left protective sleeve and the right protective sleeve being joined together to form a cylindrical shape, the two ends of the left protective sleeve and the right protective sleeve being flared, and a fixing component being provided at the point where the left protective sleeve and the right protective sleeve abut and fit together during installation.
[0006] Preferably, L-shaped adhesive strips are symmetrically provided on the inner walls of one end of the left and right protective sleeves, and multiple snap-fit seats are horizontally provided on one side of the outer wall of the electrical connector. The snap-fit seats are provided with sliding grooves that correspond to the shape of the two L-shaped adhesive strips after they are attached.
[0007] Preferably, the fixing component includes several fixing blocks disposed on the left and right protective sleeves. The fixing blocks are symmetrically disposed on the outer walls of the left and right protective sleeves and abut against each other during installation. The fixing blocks are provided with pins for fixing the left and right protective sleeves.
[0008] Preferably, one end of the pin has a cross opening, and an expansion cover is provided on the outer wall of one end of the pin. The expansion cover is truncated cone-shaped, and the fixing block, expansion cover, and pin are all made of plastic material for lightning protection.
[0009] Preferably, the outer walls of the flared openings of the left and right protective sleeves are provided with multiple mounting posts, the insulating protective sleeves are covered with waterproof sleeves by the mounting posts, the top of the mounting posts are provided with post heads, and the waterproof sleeves are made of heat shrink tubing.
[0010] Preferably, a rotating sleeve is provided on the outer wall of one end of the electrical connector, and multiple insertion interfaces are equidistantly opened on one end of the rotating sleeve along the axial side. An inner groove is opened on the inner wall of the rotating sleeve, and anti-slip texture is provided on the rotating sleeve.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the splicing and cooperation of the left and right protective sleeves, facilitates the installation of the insulating protective sleeve on the electrical connector, improving installation convenience and thus enabling the insulation protection function of the electrical connector. Multiple horizontally arranged locking seats on the connector engage with the L-shaped adhesive strips on the left and right protective sleeves, facilitating the initial connection and installation of the left and right protective sleeves of the lightning protection structure on the outer layer of the electrical connector. The cooperation of the fixing block and the pin ensures the left and right protective sleeves are firmly fixed together, improving the overall robustness of the insulating protective sleeve and thus enabling a stable installation. The cross-shaped opening at one end of the pin and the cooperation of the expansion cover further enhance the insulation protection. This design facilitates expansion and fixation after the pin is inserted into the fixing block, improving the reliability of the fixation and enabling a more reliable fixed connection. The cooperation between the mounting post and the waterproof sleeve facilitates the installation of the waterproof sleeve on the insulating protective sleeve, improving the waterproof performance of the electrical connector and thus achieving waterproof protection. The combination of the rotating sleeve, its interface, inner groove, and anti-slip texture facilitates the operator's grip on the rotating sleeve, improving operational convenience and enabling easy operation of the electrical connector. Ultimately, this design solves the problem of poor insulation and waterproof performance in existing electrical connectors, improving the insulation protection effect, installation stability, waterproof performance, and ease of operation. It also ultimately solves the problem of inconvenient disassembly and maintenance of existing insulating protective sleeves. Attached Figure Description
[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0013] Figure 1 This is a first-view schematic diagram of the overall structure proposed in this utility model;
[0014] Figure 2 This is a first-view schematic diagram of the overall structure for removing the waterproof sleeve proposed in this utility model;
[0015] Figure 3 This is an enlarged schematic diagram of the overall structure of the fixing component proposed in this utility model;
[0016] Figure 4 This is a schematic diagram of the overall structure for removing the right protective sleeve proposed in this utility model;
[0017] Figure 5 This is a schematic diagram of the overall structure of the electrical connector proposed in this utility model.
[0018] The numbers in the diagram are: 1. Electrical connector; 2. Left protective sleeve; 3. Right protective sleeve; 4. Snap-fit socket; 5. Fixing block; 6. Pin; 7. Expansion cover; 8. Mounting post; 9. Waterproof rubber sleeve; 10. Rotating sleeve; 11. Inner groove; 12. L-shaped rubber strip. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Example: See Figure 1-5This utility model discloses a shielded lightning protection electrical connector, comprising an electrical connector 1, on which an insulating protective sleeve is fitted. The insulating protective sleeve consists of a symmetrically arranged left protective sleeve 2 and a right protective sleeve 3, which, when joined together, form a cylindrical shape. The ends of the left and right protective sleeves 2 and 3 are flared. During installation, a fixing component is provided at the point where the left and right protective sleeves 2 and 3 abut against each other. The symmetrical design of the insulating protective sleeves (left and right protective sleeves 2 and 3) and their cylindrical shape when joined together on the electrical connector 1 facilitates installation and disassembly. Compared to traditional integral sleeve-type connectors... The insulating sleeves reduce installation difficulty, and the flared design at both ends facilitates the insertion and exit of cables, etc. The fixing components ensure that the left protective sleeve 2 and the right protective sleeve 3 can be firmly attached to the electrical connector 1, improving the stability of the insulating protective sleeve installation and effectively achieving insulation protection for the electrical connector 1, reducing the risk of leakage, short circuit, etc. The inner walls of one end of the left protective sleeve 2 and the right protective sleeve 3 are symmetrically provided with L-shaped adhesive strips 12. Multiple locking seats 4 are horizontally provided on one side of the outer wall of the electrical connector 1. The locking seats 4 have sliding grooves corresponding to the shape of the two L-shaped adhesive strips 12 after they are attached. The L-shaped adhesive strips 12 and the locking seats... The engagement of the connector 4 and its sliding groove allows the L-shaped rubber strip 12 to embed into the sliding groove of the connector 4 during the installation of the insulating protective sleeve, providing precise positioning and ensuring that the left protective sleeve 2 and the right protective sleeve 3 can be accurately installed on the electrical connector 1. This engagement also increases the connection stability between the insulating protective sleeve and the electrical connector 1, preventing displacement or movement of the insulating protective sleeve on the electrical connector 1, further enhancing the insulation protection effect and reliability. The fixing assembly includes several fixing blocks 5 symmetrically arranged on the left and right protective sleeves 2 and 3. The outer wall of the sheath 3 is abutted against each other during installation. The fixing block 5 is provided with a pin 6 for fixing the left protective sleeve 2 and the right protective sleeve 3. The fixing component consisting of the fixing block 5 and the pin 6, through the pin 6 passing through the abutting and fitting fixing block 5, firmly fixes the left protective sleeve 2 and the right protective sleeve 3 together, forming a complete and stable insulating protective sleeve structure. This fixing method is relatively simple to operate and can effectively enhance the overall strength and stability of the insulating protective sleeve, ensuring that the left protective sleeve 2 and the right protective sleeve 3 will not separate during use, and continuously provide reliable insulation protection for the electrical connector 1.
[0021] In this invention, one end of the pin 6 has a cross-shaped opening, and an expansion cover 7 is provided on the outer wall of one end of the pin 6. The expansion cover 7 is frustoconical in shape. The fixing block 5, the expansion cover 7, and the pin 6 are all made of plastic material for lightning protection. The cross-shaped opening at one end of the pin 6 facilitates the application of pressure, allowing the rod at one end of the pin 6 to be squeezed together and smoothly pass through the hole on the fixing block 5. After passing through the hole, the rod returns to its original shape. With the help of the frustoconical expansion cover 7, after being inserted into the fixing block 5, the expansion cover 7 will expand and deform under pressure, further securing it tightly to the fixing block. In section 5, the connection between the pin 6 and the fixing block 5 is made more secure and less prone to loosening. The choice of plastic material gives the fixing block 5, expansion cover 7, and pin 6 a certain degree of insulation performance, without affecting the insulation protection effect of the electrical connector 1. At the same time, it reduces costs and lightens the weight. Multiple mounting posts 8 are provided on the outer wall of the flared opening of the left protective sleeve 2 and the right protective sleeve 3. Waterproof rubber sleeves 9 are covered by the mounting posts 8 on the insulating protective sleeve. The top of the mounting post 8 is provided with a post head. The waterproof rubber sleeve 9 is made of heat shrink tubing. The mounting post 8 and the post head are provided with waterproof rubber sleeves 9. The installation provides reliable support and fixing points, allowing the waterproof sleeve 9 to be stably installed at the flared end of the insulating protective sleeve. The heat-shrink tubing-material waterproof sleeve 9, after heat shrinking, can tightly adhere to the insulating protective sleeve and the electrical connector 1, effectively preventing moisture from penetrating the interior of the electrical connector 1, improving its waterproof performance, and enhancing its reliability in humid or harsh environments. A rotating sleeve 10 is provided on the outer wall of one end of the electrical connector 1. Multiple insertion interfaces are equidistantly distributed along the axial side of one end of the rotating sleeve 10. An inner groove 11 is provided on the inner wall of the rotating sleeve 10, and anti-slip textures are provided on the rotating sleeve 10. The insertion interfaces on the rotating sleeve 10 facilitate connection with other components, enabling multiple functional expansions of the electrical connector 1. The design of the inner groove 11 may provide storage space for cables, making the internal structure of the electrical connector 1 more organized and tidy. The anti-slip textures increase the friction on the surface of the rotating sleeve 10, making it easier for operators to grip and rotate the rotating sleeve 10, improving operational convenience and comfort, and making insertion and removal operations easier and more accurate, thus enhancing the user experience of the electrical connector 1.
[0022] Working principle: When using this utility model, firstly, align the left protective sleeve 2 and right protective sleeve 3 with the two sides of the electrical connector 1 respectively, so that the L-shaped adhesive strips 12 on the inner wall of one end of the left protective sleeve 2 and right protective sleeve 3 are aligned with the snap-fit seat 4 on the outer wall of the electrical connector 1. Since the snap-fit seat 4 has a sliding groove that corresponds to the shape of the two L-shaped adhesive strips 12 after they are attached, slowly push the left protective sleeve 2 and right protective sleeve 3 so that the L-shaped adhesive strips 12 are embedded in the sliding groove, thus achieving the initial positioning and installation of the left protective sleeve 2 and right protective sleeve 3 on the electrical connector 1. At this time, the left protective sleeve 2 and right protective sleeve 3 are joined together to initially form a cylindrical shape. The left protective sleeve 2 and the right protective sleeve 3 are fitted onto the electrical connector 1, with the left protective sleeve 2 and the right protective sleeve 3 corresponding to the two sides of the electrical connector 1 respectively. The L-shaped adhesive strips 12 on the inner wall of one end of the left protective sleeve 2 and the right protective sleeve 3 are aligned with the snap-fit seat 4 on the outer wall of the electrical connector 1. Since the snap-fit seat 4 has a sliding groove that corresponds to the shape of the two L-shaped adhesive strips 12 after they are attached, the left protective sleeve 2 and the right protective sleeve 3 are slowly pushed so that the L-shaped adhesive strips 12 are embedded in the sliding groove, thus achieving the initial positioning and installation of the left protective sleeve 2 and the right protective sleeve 3 on the electrical connector 1. At this time, the left protective sleeve 2 and the right protective sleeve 3 are spliced together to initially form a cylindrical sleeve on the electrical connector 1.
[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A shielded lightning strike protected electrical connector comprising an electrical connector (1), characterized in that: The electric connector (1) is sleeved with an insulating protective sleeve, the insulating protective sleeve is divided into symmetrically arranged left protective sleeve (2) and right protective sleeve (3), the left protective sleeve (2) and the right protective sleeve (3) are combined to form a cylindrical shape, the left protective sleeve (2) and the right protective sleeve (3) are flared at both ends, and the left protective sleeve (2) and the right protective sleeve (3) are provided with a fixing assembly at the abutting position.
2. The shielded lightning strike protected electrical connector of claim 1, wherein: The left protective sleeve (2) and the right protective sleeve (3) are symmetrically provided with L-shaped rubber strips (12) on the inner wall of one end, and the outer wall of the electric connector (1) is horizontally provided with a plurality of clamping seats (4), and the clamping seat (4) is provided with a sliding groove corresponding to the shape of the two L-shaped rubber strips (12) after being combined.
3. A shielded lightning strike protected electrical connector according to claim 2, characterized in that: The fixing assembly includes a plurality of fixing blocks (5) arranged on the left protective sleeve (2) and the right protective sleeve (3), the fixing blocks (5) are symmetrically arranged on the outer walls of the left protective sleeve (2) and the right protective sleeve (3), and abut and fit with each other during installation, and the fixing blocks (5) are provided with a latch (6) for fixing the left protective sleeve (2) and the right protective sleeve (3).
4. The shielded lightning strike protected electrical connector of claim 3, wherein: The latch (6) is provided with a cross opening at one end, the outer wall of one end of the latch (6) is provided with an expansion cover (7), the expansion cover (7) is in the shape of a truncated cone, and the fixing block (5), the expansion cover (7) and the latch (6) are all made of plastic material which is shielded and lightning-proof.
5. A shielded lightning strike protected electrical connector according to claim 4, characterized in that: The outer wall of the flared portion of the left protective sleeve (2) and the right protective sleeve (3) is provided with a plurality of mounting columns (8), the insulating protective sleeve is provided with a waterproof rubber sleeve (9) through the mounting column (8), the top end of the mounting column (8) is provided with a head, and the waterproof rubber sleeve (9) is made of a heat shrink tube.
6. A shielded lightning strike protected electrical connector according to claim 5, characterized in that: The outer wall of one end of the electric connector (1) is provided with a rotating sleeve (10), a plurality of plug-in interfaces are equidistantly arranged on the one end of the rotating sleeve (10) along the shaft side, an inner groove (11) is arranged on the inner wall of the rotating sleeve (10), and the rotating sleeve (10) is provided with anti-skid lines.