Self-locking contact element
The self-locking contact structure design realizes the self-locking function of the pin and the socket, solves the problem of the connector being too large in a narrow space, and achieves miniaturization and improved reliability.
Patent Information
- Application Number
- CN202422839049.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-21
AI Technical Summary
Existing connectors are difficult to reduce in size in narrow spaces while meeting locking function requirements, and conventional structures result in excessive size.
A self-locking contact is designed, and self-locking is achieved by utilizing the structural design of the pin and socket assembly, including the coordination of the annular groove, notch, protrusion and elastic member to realize the self-locking function of the pin and socket.
Without adding an external locking mechanism, the connector size is significantly reduced, reliability is improved, and cost is reduced.
Smart Images
Figure CN223390895U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of connectors, and in particular to a self-locking contact. Background Art
[0002] Conventional connectors typically consist of a housing and a connector. During the connection process, the contacts serve solely as signal transmission devices, providing contact functionality and not participating in the connector's locking function. Locking is typically provided by a structure on the housing, with different configurations available to meet varying locking requirements. However, this results in a larger overall connector structure.
[0003] In engineering applications, construction space is often limited, which leads to volume requirements for the overall structure of the connector, requiring the connector to be as small as possible. However, existing connector structures cannot meet the technical requirements while reducing the overall volume, no matter from which technical perspective. Summary of the Invention
[0004] The purpose of the present invention is to propose a self-locking contact piece in response to the existing technology, remove the shell structure on the existing contact piece, design the contact piece body structure, and use the connector to achieve self-locking during the plug-in process.
[0005] To achieve the above object, the present invention adopts the following technical solutions:
[0006] A self-locking contact comprises a pin and socket assembly of a connector, wherein a protruding annular groove is provided on the body of the pin along the radial direction, and a notch is provided on one side of the annular groove.
[0007] The jack assembly comprises a jack body, and a protrusion is provided on the inner wall of the jack of the jack body, and the protrusion can be inserted into the annular groove through the notch.
[0008] In the above technical solution, a concave hole is provided on the inner side of the side with the notch.
[0009] In the above technical solution, the concave hole matches the raised portion on the socket body, and the raised portion can be embedded in the concave hole.
[0010] In the above technical solution, an elastic member is provided in the socket, and the elastic member provides an elastic force along the axial direction of the socket.
[0011] In the above technical solution, when the pin is inserted into the jack, the end of the pin contacts the elastic member, and the elastic member provides elastic force in the opposite direction of the insertion of the pin.
[0012] In the above technical solution, a contact spring for plugging in the pin is provided in the socket, and the elastic member is provided in the plug spring and connected to the contact spring.
[0013] In the above technical solution, a plurality of notches and recessed holes are provided on the main body of the insertion pin, and a number of protrusions that is the same as the number of notches is provided on the insertion hole body.
[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:
[0015] The present invention realizes the self-locking function of the pin and the socket without the external locking mechanism of the conventional connector, greatly reduces the volume of the connector, can meet the actual engineering needs, and at the same time improves the reliability of the connector while reducing the cost of the connector. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present invention will now be described by way of example with reference to the accompanying drawings, in which:
[0017] Figure 1 It is a schematic diagram of the overall structure of the contact;
[0018] Figure 2 It is a schematic diagram of the pin structure;
[0019] Figure 3 It is a schematic diagram of the structure of the jack;
[0020] Figure 4 yes Figure 3 sectional view of
[0021] Among them: 1 is the pin, 2 is the annular groove, 3 is the notch, 4 is the concave hole, 5 is the jack assembly, 6 is the protrusion, 7 is the connecting spring, and 8 is the elastic part. DETAILED DESCRIPTION
[0022] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.
[0023] Any feature disclosed in this specification (including any appended claims, abstract, and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. In other words, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.
[0024] like Figure 1 As shown, the contact piece of this embodiment includes two parts: a pin 1 and a socket assembly 5. In this embodiment, there is no conventional connector shell on the outside of the pin 1 and the socket assembly 5, and the connection and locking of the pin 1 and the socket assembly 5 are achieved by their own structure.
[0025] like Figure 1The body of the pin 1 is a one-piece die-cast structure. It is divided into two sections of different diameters: the smaller section is used for insertion, while the larger section is a locking mechanism. An annular groove 2 is provided along the circumference of the larger section, with a notch 3 on one side. Groove 2 is the locking groove, defining the snap, while notch 3 serves as the entry and exit for the locking mechanism.
[0026] In order to further improve the locking function, such as Figure 2 As shown, in this embodiment, a recessed hole 4 is provided on the inner side surface of the annular groove 2, and the recessed hole 4 is used to limit the locking portion.
[0027] like Figure 3 and Figure 4 As shown, the jack assembly 5 in this embodiment has a jack body, and a locking protrusion 6, a contact spring 7 and an elastic member 8 are respectively provided in the jack of the jack body. The protrusion 6 is used to match the annular groove 2 on the pin 1, the contact spring 7 is used to engage with the pin 1 to increase the contact area, and the elastic member 8 is used to apply force to the pin 1 to complete the self-locking function.
[0028] In this embodiment, a protrusion 6 is provided along the circumferential direction at the opening of the socket. The protrusion 6 may be a convex pin structure. When the pin 1 is inserted, the notch 3 on the annular groove 2 is aligned with the protrusion 6 for insertion. After the protrusion 6 enters the annular groove 2, the pin 1 is rotated so that the protrusion 6 falls into the recessed hole 4, thereby completing the positioning of the pin 1.
[0029] In this embodiment, the elastic member 8 is arranged at the bottom of the socket, and can also be arranged at one end of the contact spring 7. The elastic member 8 provides an axial force. When the pin 1 is inserted into the contact spring 7, the end of the pin 1 squeezes the elastic member 8. The elastic member 8 applies a force in the opposite direction of the insertion to the pin 1, thereby providing an extrusion force between the pin 1 and the socket assembly 5, and the concave hole 4 of the pin 1 and the protrusion 6 of the socket assembly 5 are buckled together by this extrusion force.
[0030] When the pin 1 and the socket assembly 5 are to be separated, the pin 1 is pushed along the insertion direction to squeeze the elastic member 8, and then the pin 1 is rotated so that the protrusion 6 exits the annular groove 2 from the notch, thereby completing the unlocking of the pin 1 and the socket assembly 5.
[0031] The present invention is not limited to the aforementioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.
Claims
1. A self-locking contact, comprising a pin and socket assembly of a connector, characterized in that: The body of the pin is provided with a protruding annular groove along the radial direction, and a notch is provided on one side of the annular groove. The jack assembly comprises a jack body, and a protrusion is provided on the inner wall of the jack of the jack body, and the protrusion can be inserted into the annular groove through the notch.
2. A self-locking contact according to claim 1, characterized in that: A concave hole is arranged on the inner side of the side with the notch.
3. The self-locking contact according to claim 2, characterized in that: The concave hole matches the convex portion on the socket body, and the convex portion can be embedded in the concave hole.
4. The self-locking contact according to claim 1, characterized in that: An elastic member is provided in the socket, and the elastic member provides an elastic force along the axial direction of the socket.
5. The self-locking contact according to claim 4, characterized in that: When the pin is inserted into the jack, the end of the pin contacts the elastic member, and the elastic member provides elastic force in the opposite direction of the insertion of the pin.
6. A self-locking contact according to claim 4 or 5, characterized in that: A contact spring for plugging in a pin is arranged in the socket, and the elastic member is arranged in the plug spring and connected to the contact spring.
7. The self-locking contact according to claim 3, characterized in that: The main body of the pin is provided with a plurality of notches and recessed holes, and the socket body is provided with protrusions having the same number as the notches.