High-stability connector with double self-locking structure
By introducing a dual self-locking structure into the connector, and using components such as stops and guide rails for secondary self-locking, the problem of loosening of traditional connectors under complex working conditions is solved, achieving high stability and simplified production of the connector.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN WEIFENG HARDWARE ELECTRONICS PROD CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional connectors are prone to loosening under complex operating conditions, leading to electronic equipment malfunctions and posing safety hazards.
It adopts a double self-locking structure, which uses a connector position retainer to self-lock the connector a second time, enhancing the self-locking strength of the male and female connectors. This includes a stop, guide rail, and snap-fit structure to stabilize the connector position.
It improves connector stability, prevents loosening, enhances self-locking strength, simplifies the production process, and improves connector reliability.
Smart Images
Figure CN224305050U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, and in particular to a highly stable connector with a double self-locking structure. Background Technology
[0002] With the rapid development of technology, various industries are placing increasingly stringent demands on connector performance. From consumer electronics pursuing lightweight portability and efficient data transmission, to industrial control emphasizing stable and reliable operation, and to communication base stations needing to handle high-speed, high-capacity data interaction, connectors, as key components in electronic devices that achieve electrical connections and signal transmission, have never stopped iterating on their technological development. In current connector application scenarios, especially in fields with extremely high requirements for connection reliability, such as automotive, aerospace, and industrial automation, the robust connection of connectors is crucial. Taking automobiles as an example, during vehicle operation, they are continuously subjected to severe vibrations caused by complex road conditions, high-frequency vibrations generated by engine operation, and various extreme temperature environments.
[0003] Traditional connectors rely on simple snap-fit or friction to maintain the connection between the male and female sockets. This method has many drawbacks when faced with complex operating conditions. When the electronic device using the connector experiences excessive vibration, the relative position between the male and female sockets can easily shift, potentially causing the connection to detach and leading to electronic device malfunctions, posing a significant safety hazard. Utility Model Content
[0004] Based on this, the purpose of this utility model is to provide a highly stable connector with a dual self-locking structure. By setting a connector position retainer, the connector is self-locked a second time to enhance the self-locking strength of the male and female connectors and improve the stability of the connector.
[0005] A high-stability connector with a dual self-locking structure, comprising:
[0006] A female connector includes a base, a clip, and a retaining mounting structure; the retaining mounting structure is fixed to the base; one end of the clip is elastically connected to the base, and the other end is movably disposed within the retaining mounting structure; the retaining mounting structure is provided with at least one stop, the stop is fixed to the base and protrudes toward the clip; the stop, the base, and the clip form a insertion cavity.
[0007] A connector position retainer is inserted into the insertion cavity and sandwiched between the fastener and the base.
[0008] Furthermore, the number of the stops is two, and they are arranged symmetrically; each of the two stops has a relatively protruding first abutment at the end away from the base;
[0009] The connector position retainer is provided with a self-locking boss, and the movable end of the fastener is clamped between the first abutment and the self-locking boss.
[0010] Furthermore, the connector position holding member also includes a first guide rail disposed on one or both sides of the self-locking boss; the stop block has a first guide groove on the wall facing the self-locking boss; the first guide rail is inserted into the first guide groove and is provided with a first snap-fit structure to engage with the first guide groove.
[0011] Furthermore, the connector position retainer also includes a second guide rail disposed on one or both sides of the self-locking boss; the retainer mounting structure is provided with a second guide groove; the second guide rail is inserted into the second guide groove and is provided with a second snap-fit structure to engage with the second guide groove.
[0012] Furthermore, the second guide groove is provided on the wall surface of the stop block opposite to the self-locking boss.
[0013] Furthermore, the connector position retainer is also provided with a stop portion, which is fixedly connected to the insertion end of the self-locking boss. When the self-locking boss is fixedly inserted into the insertion cavity, the stop portion abuts against the stop block.
[0014] Furthermore, the aforementioned high-stability connector with a dual self-locking structure further includes:
[0015] Public seat;
[0016] The fastener has a fastening part and a limiting part spaced apart along its insertion direction. The fastening part is fastened to the male seat. The limiting part is located near the free end of the fastener to limit the insertion stroke of the male seat.
[0017] Furthermore, the aforementioned high-stability connector with a dual self-locking structure further includes:
[0018] The terminal position retainer is equipped with a positioning post;
[0019] The female connector also includes a flexible terminal, which is partially embedded in the base; both the flexible terminal and the base have corresponding positioning holes, and the positioning pin is inserted into the positioning hole.
[0020] Furthermore, the terminal position retainer also includes a spring arm hook protruding in the same direction as the positioning post, and the spring arm hook is fixedly connected to the base.
[0021] Furthermore, the spring arm hooks are disposed at both ends of the terminal retainer, and the opposite side walls of the base are provided with grooves, in which the spring arm hooks are fixedly inserted.
[0022] The beneficial effects of this utility model are as follows:
[0023] (1) The connector is self-locked twice by setting a connector position retainer. When the latching piece is engaged with the male socket, the connector position retainer is inserted into the mating cavity to limit the elastic movement of the latching piece and prevent the latching piece from loosening from the male socket, thereby strengthening the self-locking strength of the male and female sockets and improving the stability of the connector.
[0024] (2) By setting two sets of guide rails to engage with the retainer mounting structure, the assembly of the connector position retainer and the retainer mounting structure can be made more stable, and the self-locking strength of the connector can be strengthened.
[0025] (3) By simplifying the mounting structure of the retainer, the mold structure of the plastic parts can be simplified, which facilitates production;
[0026] (4) By simultaneously setting terminal position retaining components, mechanical interlocking is performed between the flexible terminal and the base, thereby increasing the holding force of the base on the flexible terminal.
[0027] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description
[0028] Figure 1 An exploded view of a high-stability connector with a dual self-locking structure provided in an embodiment of this application;
[0029] Figure 2 This is an assembly diagram of a high-stability connector with a dual self-locking structure.
[0030] Figure 3 A cross-sectional view of a high-stability connector with a dual self-locking structure;
[0031] Figure 4 This is a schematic diagram of the structure of the wire end female connector;
[0032] Figure 5 This is a structural schematic diagram of the connector position retainer;
[0033] Figure 6 This is a schematic diagram of the terminal position retainer.
[0034] Figure 7 This is an assembly diagram of the terminal position retainer.
[0035] In the diagram: 10-Female connector; 11-Base; 111-Positioning hole; 112-Groove; 1121-Snap-on; 113-Positioning groove; 12-Snap-on piece; 121-Snap-on part; 122-Limiting part; 123-Extending boss; 13-Retaining member mounting structure; 131-Stop; 1311-First abutting part; 132-Plug-in cavity; 133-First guide groove; 134-Second guide groove; 1341-Guide strip; 14-Flexible terminal; 20-Connector position retainer; 21-Self-locking boss; 22-First guide rail; 221-First snap-on structure; 23-Second guide rail; 231-Second snap-on structure; 24-Stop part; 30-Terminal position retainer; 31-Positioning post; 32-Spring arm hook; 33-Positioning boss; 40-Male connector. Detailed Implementation
[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0037] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] Please see Figure 1-4This application provides a highly stable connector with a dual self-locking structure, including a male connector 40, a female connector 10, and a connector position retainer 20. The female connector 10 is inserted into the male connector 40, and the connector position retainer 20 is used to perform a secondary locking after the female connector 10 and the male connector 40 are inserted, so as to prevent the male connector 40 from becoming loose from the female connector 10 and causing poor contact.
[0040] Specifically, the female connector 10 includes a base 11, a snap fastener 12, and a retaining member mounting structure 13. The retaining member mounting structure 13 is fixedly mounted on the base 11. One end of the snap fastener 12 is elastically connected to the base 11, and the other end is movably disposed within the retaining member mounting structure 13. The retaining member mounting structure 13 is provided with at least one stop 131, which is fixedly connected to the base 11 and protrudes towards the snap fastener 12. The stop 131, the base 11, and the snap fastener 12 together form a insertion cavity 132. A connector position retainer 20 is inserted into the insertion cavity 132 and sandwiched between the snap fastener 12 and the base 11. The connector position retainer 20 maintains the snap fastener 12 in a snapped state with the male connector 40, preventing the snap fastener 12 from being elastically deflected by force and dislodging from the male connector 40.
[0041] The high-stability connector with a dual self-locking structure provided in this application embodiment performs secondary self-locking on the connector by setting a connector position retainer 20. When the latching tab 12 is engaged with the male socket 40, the connector position retainer 20 is inserted into the insertion cavity 132 to restrict the elastic movement of the latching tab 12 and prevent the latching tab 12 from loosening from the male socket 40, thereby strengthening the self-locking strength of the male socket 40 and the female socket and improving the stability of the connector.
[0042] Please see 3 and Figure 4 Furthermore, in some embodiments, the stop 131 consists of two symmetrically arranged blocks; each of the two stop blocks 131 has a relatively protruding first abutment portion 1311 at its end away from the base 11. The connector position retainer 20 is provided with a self-locking boss 21, and the movable end of the latching tab 12 is sandwiched between the first abutment portion 1311 and the self-locking boss 21. When the latching tab 12 is engaged with the male seat 40 through the fastening portion 121, the self-locking boss 21 is inserted into the insertion cavity 132 from below the latching tab 12 until the latching tab 12 is pressed against the first abutment portion 1311, thereby positioning the latching tab 12, preventing the latching tab 12 from elastically moving, and avoiding the latching tab 12 from elastically loosening from the male seat 40 in the event of a collision.
[0043] Furthermore, in some embodiments, the movable end of the latch 12 is provided with an extension boss 123, which is sandwiched between the first abutment portion 1311 and the self-locking boss 21. This arrangement reduces the size of the retainer mounting structure 13, thus limiting the size of the connector and expanding its application scenarios.
[0044] Furthermore, preferably, the contact surfaces of the self-locking boss 21 and the fastener 12 are inclined at a certain angle, which facilitates the smooth insertion of the connector position retainer 20 into the insertion cavity 132 and abuts against the fastener 12.
[0045] Please see 3 and Figure 4 Furthermore, the fastener 12 is provided with a fastening part 121 and a limiting part 122 at intervals along its insertion direction. The fastening part 121 is fastened and connected to the male seat 40. The limiting part 122 is provided near the free end of the fastener 12 to limit the insertion stroke of the male seat 40.
[0046] Please see Figure 4 and Figure 5 Furthermore, in some embodiments, the connector position retainer 20 further includes a first guide rail 22 disposed on one or both sides of the self-locking boss 21; the retainer mounting structure 13 is provided with a first guide groove 133; the first guide rail 22 is inserted into the first guide groove 133 and is provided with a first snap-fit structure 221 that engages with the first guide groove 133. During the process of inserting the self-locking boss 21 into the insertion cavity 132, the first guide rail 22 slides forward along the first guide groove 133 until the first guide rail 22 and the first guide groove 133 are engaged by the first snap-fit structure 221, thereby achieving positioning. Specifically, the first snap-fit structure 221 is a hook or buckle that can engage with the first guide groove 133, used to achieve positioning and limiting of the first guide rail 22 and the first guide groove 133, which is not limited here.
[0047] Preferably, the first guide groove 133 is provided on the inner wall of the stop block 131, which simplifies the mounting structure 13 of the retainer and is beneficial to mold design and production.
[0048] Furthermore, in some embodiments, the connector position retainer 20 further includes a second guide rail 23 disposed on one or both sides of the self-locking boss 21; the retainer mounting structure 13 is provided with a second guide groove 134; the second guide rail 23 is inserted into the second guide groove 134 and is provided with a second snap-fit structure 231 to engage with the second guide groove 134. During the process of inserting the self-locking boss 21 into the insertion cavity 132, the second guide rail 23 slides forward along the second guide groove 134 until the second guide rail 23 and the second guide groove 134 are engaged by the second snap-fit structure 231 to achieve positioning. Specifically, the second snap-fit structure 231 is a hook or buckle that can engage with the second guide groove 134, used to achieve positioning and limiting of the second guide rail 23 and the second guide groove 134, which is not limited here.
[0049] Preferably, the second guide groove 134 is provided on the outer wall of the stop 131 away from the self-locking boss 21, which can further simplify the retainer installation structure 13.
[0050] Furthermore, in a preferred embodiment, the second snap-fit structure 231 is located on the side of the second guide rail 23 away from the self-locking boss 21. This simplifies the mold structure and facilitates injection molding. In this configuration, the second guide groove 134 also includes a guide strip 1341, which is spaced a certain distance from the stop block 131. This guide strip 1341 is used to position the initial insertion position of the connector position holder 20, and the second guide rail 23 is inserted along the guide strip 1341. Additionally, the guide strip 1341 has hooks or buckles that mate with the second snap-fit structure 231, engaging with the second guide rail 23.
[0051] Preferably, in this configuration, the second guide rail 23 is a ring-shaped structure with a hollowed-out center. This helps to ensure that it has a certain degree of elasticity, which is conducive to inserting into and engaging with the second guide groove 134, while also having a certain degree of rigidity to maintain a fixed engagement with the second guide groove 134.
[0052] Furthermore, in some embodiments, the connector position retainer 20 is also provided with a stop portion 24, which is fixedly connected to the self-locking boss 21. When the self-locking boss 21 is fixedly inserted into the insertion cavity 132, the stop portion 24 abuts against the stop block 131 to limit the insertion depth of the connector position retainer 20, while facilitating hand-held insertion.
[0053] Please see Figure 1 , Figure 6 and Figure 7 Furthermore, the female connector 10 also includes a flexible terminal 14, which is partially embedded in the base 11. The high-stability connector with a dual self-locking structure provided in this application embodiment also includes a terminal position retainer 30, which is used to mechanically interlock the flexible terminal 14 and the base 11, increasing the holding force of the base 11 on the flexible terminal 14.
[0054] Furthermore, in some embodiments, the terminal position holding member 30 is provided with a positioning post 31. The flexible terminal 14 and the base 11 are respectively provided with positioning holes 111. The positioning post 31 is inserted into the positioning hole 111 through the flexible terminal 14 and the base 11 to achieve further positioning of the flexible terminal 14 and the base 11, and to prevent the flexible terminal 14 from being subjected to force and causing relative displacement with the base 11, which would affect the conductive performance of the connector.
[0055] Furthermore, in some embodiments, the terminal position retainer 30 also includes a spring arm hook 32 protruding in the same direction as the positioning post 31. The spring arm hook 32 is engaged with the base 11 to fix the terminal position retainer 30 to the base 11.
[0056] Specifically, the spring-loaded hooks 32 are located at both ends of the terminal retainer, and the opposite side walls of the base 11 are provided with grooves 112, in which the spring-loaded hooks 32 are fixedly inserted. Furthermore, the grooves 112 are provided with latching positions 1121 that engage with the spring-loaded hooks 32. When installing the terminal position retainer 30, it is only necessary to align the positioning pin 31 with the positioning hole 111 and insert it. At this time, the spring-loaded hooks 32 slide along the grooves 112 until they engage with the latching positions 1121 inside the grooves 112, thus achieving the positioning and fixing of the terminal position retainer 30 to the base 11. The assembly structure is simple, and the overall appearance of the connector is maintained.
[0057] Furthermore, the terminal position retainer 30 has a positioning boss 33 on the side close to the base 11. In cooperation, the base 11 has a positioning groove 113. When the terminal position retainer 30 and the base 11 are engaged, the positioning boss 33 is embedded in the positioning groove 113 to further prevent the terminal position retainer 30 and the base 11 from shifting and to increase the holding force between the base 11 and the terminal position retainer 30.
[0058] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows:
[0059] (1) The connector is self-locked twice by setting a connector position retainer. When the latching piece is engaged with the male socket, the connector position retainer is inserted into the mating cavity to limit the elastic movement of the latching piece and prevent the latching piece from loosening from the male socket, thereby strengthening the self-locking strength of the male and female sockets and improving the stability of the connector.
[0060] (2) By setting two sets of guide rails to engage with the retainer mounting structure, the assembly of the connector position retainer and the retainer mounting structure can be made more stable, and the self-locking strength of the connector can be strengthened.
[0061] (3) By simplifying the mounting structure of the retainer, the mold structure of the plastic parts can be simplified, which facilitates production;
[0062] (4) By simultaneously setting terminal position retaining components, mechanical interlocking is performed between the flexible terminal and the base, thereby increasing the holding force of the base on the flexible terminal.
[0063] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.
Claims
1. A highly stable connector with a dual self-locking structure, characterized in that, include: The line terminal female connector includes a base, a fastener, and a retaining mounting structure; The retaining component mounting structure is fixedly mounted on the base; One end of the fastener is elastically connected to the base, and the other end is movably disposed within the retaining member mounting structure; the retaining member mounting structure is provided with at least one stop, the stop is fixed to the base and protrudes toward the fastener side; the stop, the base and the fastener together form an insertion cavity; A connector position retainer is inserted into the insertion cavity and sandwiched between the fastener and the base.
2. A high-stability connector with a dual self-locking structure according to claim 1, characterized in that: The number of the blocks is two, and they are arranged symmetrically; each of the two blocks has a relatively protruding first abutment at the end away from the base; The connector position retainer is provided with a self-locking boss, and the movable end of the fastener is clamped between the first abutment portion and the self-locking boss.
3. A high-stability connector with a dual self-locking structure according to claim 2, characterized in that: The connector position retainer also includes a first guide rail disposed on one or both sides of the self-locking boss; the stop block has a first guide groove on the wall facing the self-locking boss; the first guide rail is inserted into the first guide groove and is provided with a first snap-fit structure to engage with the first guide groove.
4. A high-stability connector with a dual self-locking structure according to claim 2, characterized in that: The connector position retainer also includes a second guide rail disposed on one or both sides of the self-locking boss; the retainer mounting structure is provided with a second guide groove; the second guide rail is inserted into the second guide groove and is provided with a second snap-fit structure to engage with the second guide groove.
5. A high-stability connector with a dual self-locking structure according to claim 4, characterized in that: The second guide groove is located on the wall surface of the stop block away from the self-locking boss.
6. A high-stability connector with a dual self-locking structure according to claim 2, characterized in that: The connector position retainer is further provided with a stop portion, which is fixedly connected to the insertion end of the self-locking boss. When the self-locking boss is fixedly inserted into the insertion cavity, the stop portion abuts against the stop block.
7. A high-stability connector with a dual self-locking structure according to claim 1, characterized in that, Also includes: Public seat; The fastener has a fastening part and a limiting part spaced apart along its insertion direction. The fastening part is fastened to the male seat. The limiting part is located near the free end of the fastener to limit the insertion stroke of the male seat.
8. A high-stability connector with a dual self-locking structure according to claim 1, characterized in that, Also includes: The terminal position retainer is equipped with a positioning post; The female connector also includes a flexible terminal, which is partially embedded in the base; both the flexible terminal and the base have corresponding positioning holes, and the positioning pin is inserted into the positioning hole.
9. A high-stability connector with a dual self-locking structure according to claim 8, characterized in that: The terminal position retainer also includes a spring arm hook that protrudes in the same direction as the positioning post, and the spring arm hook is fixed to the base.
10. A high-stability connector with a dual self-locking structure according to claim 9, characterized in that: The spring arm hooks are disposed at both ends of the terminal retainer, and the opposite side walls of the base are provided with grooves, in which the spring arm hooks are fixedly inserted.