Reed and reed type contact
By designing the external and internal convex spring structures of the spring-type contact, the problems of heat generation and large insertion and extraction forces during the insertion of the spring-type contact were solved, achieving excellent electrical transmission performance and a smooth insertion and extraction effect.
Patent Information
- Application Number
- CN202520366629.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-04
AI Technical Summary
Existing spring-type contacts generate significant heat and require large insertion and extraction forces during mating, affecting product performance and user experience.
Design a spring structure including a connecting section and a supporting section, with an outer convex spring and an inner convex spring. The connecting section is provided with a clearance hole and a slot. The outer convex spring contacts the inner wall of the socket and the inner convex spring contacts the outer wall of the pin, increasing the contact points and reducing the single-piece force.
It improves electrical transmission performance, makes plugging and unplugging smoother, reduces the risk of device overheating, and enhances the user experience.
Smart Images
Figure CN223898645U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a spring for a contact element, and in particular to a spring and a spring-type contact element. Background Technology
[0002] Existing spring-type contact socket assemblies often exhibit severe overheating and excessive, rough insertion / removal forces during pin engagement. Excessive overheating can affect product performance and, in severe cases, even burn out the equipment. Rough insertion / removal forces significantly impact the customer's user experience, especially for high-current and multi-core products, and also affect overall product performance. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a reed and a reed contact.
[0004] The objective of this utility model is achieved through the following technical solution: A spring sheet includes a connecting section, with support sections at both axial ends of the connecting section. The diameter of the support sections is larger than the diameter of the connecting section. A plurality of spring sheet groups are provided on the connecting section, and the plurality of spring sheet groups are spaced apart in the axial direction. Each spring sheet group includes an outer convex spring sheet distributed on the circumference and an inner convex spring sheet distributed on the circumference. The connecting section has clearance holes for the outer convex spring sheet and the inner convex spring sheet. One end of the outer convex spring sheet and one end of the inner convex spring sheet are mounted on the side wall of the corresponding clearance hole, and the connecting end of the outer convex spring sheet is close to the connecting end of the corresponding inner convex spring sheet. The inner convex spring sheet is located in front of the corresponding outer convex spring sheet. The spring sheet also has a slot that penetrates the connecting section and the support section. In its natural state, the outer circumference diameter of the outer convex spring sheet is larger than the diameter of the connecting section.
[0005] Optionally, there are two sets of shrapnel.
[0006] Optionally, the reed may also include a tapered section, and the support section and the connecting section are connected by a tapered section.
[0007] A spring-type contact includes a socket body and a pin, and also includes a spring. The socket body has an enlarged hole in its inner cavity. The spring is retracted and pressed into the enlarged hole, and the outer protruding spring abuts against the inner wall of the enlarged hole. The head of the pin is inserted into the spring, and the inner protruding spring abuts against the outer wall of the pin.
[0008] Optionally, the insertion end of the inner convex spring is rounded.
[0009] This utility model has the following advantages:
[0010] 1. Excellent electrical conductivity: Due to the numerous inner and outer protrusions and the large number of contact surfaces, this structure exhibits excellent electrical conductivity.
[0011] 2. Smooth insertion and removal: The inner / outer protruding spring contacts the socket body and the pin. There are many springs, but the force of each spring is very small, so insertion and removal are relatively smooth. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the reed's structure;
[0013] Figure 2 This is a schematic diagram of the contact element.
[0014] In the diagram, 1-spring, 2-insertion body, 3-plug connector, 11-support section, 12-connecting section, 13-outer convex spring, 14-inner convex spring, 15-groove, 16-conical section. Detailed Implementation
[0015] 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 embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.
[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0017] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.
[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used 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, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0020] 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 an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] like Figure 2 As shown, a spring-type contact includes a socket body 2, a pin 3, and a spring 1. In this embodiment, as... Figure 1As shown, the spring 1 includes a connecting section 12, with support sections 11 at both axial ends of the connecting section 12. The diameter of the support sections 11 is larger than the diameter of the connecting section 12. The connecting section 12 has several spring groups spaced apart in the axial direction. In this embodiment, there are two spring groups, each including an outwardly convex spring 13 distributed on the circumference and an inwardly convex spring 14 distributed on the circumference. The connecting section 12 has clearance holes for the outwardly convex spring 13 and the inwardly convex spring 14. One end of the outwardly convex spring 13 and one end of the inwardly convex spring 14 are mounted on the sidewalls of the corresponding clearance holes, and the connecting end of the outwardly convex spring 13 is connected to the corresponding inwardly convex spring 14. The connecting ends of the springs 4 are close to each other, and the inner convex spring 14 is located in front of the corresponding outer convex spring 13. The spring 1 is also provided with a slot 15 that penetrates the connecting section 12 and the support section 11, so that the spring 1 can be contracted in the circumferential direction. In the natural state, the outer circumferential diameter of the outer convex spring 13 is larger than the diameter of the connecting section 12. In this embodiment, an enlarged hole is provided in the inner cavity of the socket body 2. The spring 1 is contracted and pressed into the enlarged hole, and the outer convex spring 13 abuts against the inner wall of the enlarged hole. The head of the pin 3 is inserted into the spring 1, and the inner convex spring 14 abuts against the outer wall of the pin 3. When installing the spring 1, the spring 1 is first contracted in the circumferential direction. The spring 1 contracts, causing the supporting section 11 of the spring 1 to enter the socket body 2. An axial thrust is then applied to the spring 1, pressing it into the socket body 2. During this pressing process, when the outwardly protruding spring 13 contacts the inner wall of the socket body 2, it contracts inward, generating an elastic restoring force. When the spring 1 is fully inside the enlarged hole area, it expands circumferentially, causing the outwardly protruding spring 13 to contact the inner wall of the enlarged hole. The supporting section 11 is restricted by the corresponding enlarged hole end face, thus preventing axial movement of the spring 1. Then, the pin 3 is inserted into the socket body 2. To facilitate the insertion of the pin 3, the inner protruding spring 14... The insertion end has rounded corners. During insertion, the pin 3 presses the inner convex spring 14, causing the inner convex spring 14 to open outward, thereby generating an elastic restoring force. After the pin 3 is installed, the outer convex spring 13 contacts the inner wall of the enlarged hole, that is, the outer convex spring 13 is always in contact with the insertion hole body 2, while the inner convex spring 14 is always in contact with the pin 3. Both the inner convex spring 14 and the outer convex spring 13 have several contacts, so there are many contact points and the contact is reliable. Therefore, this contact has excellent conductivity. Moreover, although there are many contact points, the force of each individual spring is small, so the insertion and removal are relatively gentle.
[0022] In this embodiment, as Figure 1 As shown, the spring 1 also includes a tapered section 16. The support section 11 and the connecting section 12 are connected by the tapered section 16, which facilitates the manufacturing and processing of the spring 1. Therefore, the spring 1 can be formed by stamping with strip material, which reduces the cost.
[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A reed, characterized in that: The device includes a connecting section, with support sections at both axial ends. The diameter of the support sections is larger than the diameter of the connecting section. The connecting section has several sets of spring contacts spaced apart axially. Each spring contact set includes outwardly convex spring contacts and inwardly convex spring contacts distributed on the circumference. The connecting section has clearance holes for the outwardly and inwardly convex spring contacts. One end of each outwardly and inwardly convex spring contact is mounted on the sidewall corresponding to the clearance hole. The connecting end of the outwardly convex spring contact is close to the connecting end of the corresponding inwardly convex spring contact, and the inwardly convex spring contact is located in front of the corresponding outwardly convex spring contact. The spring contact also has a slot penetrating the connecting section and the support sections. In its natural state, the outer circumference diameter of the outwardly convex spring contact is larger than the diameter of the connecting section.
2. A reed according to claim 1, characterized in that: The shrapnel group consists of two sets.
3. A reed according to claim 1, characterized in that: The reed also includes a tapered section, and the support section and the connecting section are connected by a tapered section.
4. A spring-type contact element, characterized in that: The device includes a socket body and a pin, and also includes a spring as described in any one of claims 1 to 3. The socket body has an enlarged hole in its inner cavity, the spring is retracted and pressed into the enlarged hole, and the outer protruding spring abuts against the inner wall of the enlarged hole. The head of the pin is inserted into the spring, and the inner protruding spring abuts against the outer wall of the pin.
5. A spring-type contact element according to claim 4, characterized in that: The insertion end of the inner convex spring is rounded.