Elastic contact element, signal terminal and electric connector
By designing a sleeve structure with jaw assembly, the problem of high cost of elastic contacts is solved, and the effect of reducing manufacturing costs and improving pin stability is achieved.
Patent Information
- Application Number
- CN202420748186.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-11
AI Technical Summary
Existing elastic contacts have high cost problems, especially in terms of material and processing costs, and it is difficult to take into account both performance and cost.
An elastic contact member including a sleeve and a jaw assembly is designed. One end of the elastic claw of the jaw assembly connects to the inner side wall of the window, and the other end extends toward the axis of the sleeve, and the first and second are provided on the sleeve. The annular projection is used to guide and position the pin, reducing the positioning structure requirements on the housing and improving the stability and clamping force of the pin.
The manufacturing cost of signal terminals is reduced, the stability and stability of pin plugs are improved, and the dependence on the housing is reduced by the integrated positioning structure on the sleeve, and the clamping force of the pin is improved.
Smart Images
Figure CN222191179U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electrical connection, and in particular relates to an elastic contact piece, a signal terminal and an electrical connector. Background Art
[0002] As a basic component, electrical connectors are used to transmit and control electrical signals and to connect electronic and electrical equipment. They are widely used in the electronics, machinery, aviation and other industries and play an important role. The general structure of an electrical connector is mainly composed of three parts: a contact, an insulator and a shell. Among them, the contact is responsible for completing the function of transmitting electrical signals and is an important component of an electrical connector. Elastic contacts are divided into three categories: closed cantilever beam sockets (slot type) directly processed from copper alloy, single-leaf hyperbolic wire spring sockets composed of copper alloy wire and shell, and single-leaf hyperbolic leaf spring sockets (rotation springs, crown springs, torsion springs) composed of stamped and curled copper alloy sheets and shells.
[0003] Among them, the closed cantilever beam socket needs to be made of copper alloy material as a whole, and the whole is processed and then closed. There are problems of high material cost and high processing cost, and the thickness of the coating cannot be increased at the contact point. The copper alloy wire of the single-leaf hyperbolic wire spring socket needs to be precisely arranged and riveted, which has a high assembly cost. The single-leaf hyperbolic leaf spring socket is usually composed of a stainless steel clamping spring leaf and a shell (torsion spring), or a high-precision spring leaf is connected to the shell by riveting a copper piece (torsion spring). There is a situation where performance and cost cannot be taken into account at the same time. Utility Model Content
[0004] The technical problem to be solved by the utility model is that the elastic contact piece has the technical problem of high cost, and provides an elastic contact piece, a signal terminal and an electric connector.
[0005] In order to solve the above problems, the first embodiment of the utility model provides an elastic contact member, comprising a sleeve provided with a plug hole and at least one claw assembly; at least one window group connected to the plug hole is provided on the outer wall of the sleeve, and each of the window groups includes a plurality of windows distributed in an annular manner;
[0006] Each of the claw assemblies comprises a plurality of elastic claws, one end of each of the elastic claws is connected to the inner side wall of the window, and the sleeve is further provided with a first annular protrusion and a second annular protrusion both protruding toward the axis of the sleeve, and the other end of each of the elastic claws extends toward the axis of the sleeve, and the windows and the elastic claws are arranged one by one;
[0007] The sleeve is also provided with a first annular protrusion and a second annular protrusion, both extending toward the axis thereof, and all the window groups are located between the first annular protrusion and the second annular protrusion.
[0008] Optionally, in the same claw assembly, all the elastic claws are arranged in a ring-shaped manner with equal intervals.
[0009] Optionally, the elastic contact member comprises at least two claw assemblies spaced apart along the axial direction of the sleeve, and the outer wall of the sleeve is provided with at least two window groups spaced apart along the axial direction thereof;
[0010] On the orthographic projection of the sleeve in the axial direction, the elastic claws in all the elastic claw assemblies are arranged in an annular manner with equal intervals.
[0011] Optionally, each of the claw assemblies includes three elastic claws, and each of the window groups includes three windows that are equally spaced in a ring shape.
[0012] Optionally, the elastic contact member comprises two claw assemblies spaced apart along the axial direction of the sleeve, and the outer wall of the sleeve is provided with two window groups spaced apart along the axial direction thereof;
[0013] On the axial orthographic projection of the sleeve, the six elastic claws are arranged in an annular shape at equal intervals.
[0014] Optionally, the sleeve and all the elastic claws are an integrally formed part.
[0015] Optionally, each of the elastic claws comprises an inclined section and a contact section connected to the inclined section, and one end of the inclined section away from the contact section is connected to the inner side wall of the window;
[0016] The angle between the inclined section and the axial section of the sleeve is a first angle, the angle between the contact section and the axial section of the sleeve is a second angle, the first angle is greater than the second angle, and the first angle is an acute angle.
[0017] Optionally, the second angle is 0 degree.
[0018] The second embodiment of the utility model further provides a signal terminal, comprising a housing provided with a mounting hole and the elastic contact member mentioned above, wherein the sleeve is mounted in the mounting hole.
[0019] The second embodiment of the utility model further provides an electrical connector, comprising a plug pin and the above-mentioned signal terminal, wherein the plug pin is detachably plugged into the plug hole.
[0020] In the utility model, each claw assembly includes a plurality of elastic claws, one end of which is connected to the inner side wall of the window, and the other end of which extends toward the axis of the sleeve; the sleeve is also provided with a first annular protrusion and a second annular protrusion, both extending toward the axis thereof, and all the window groups are located between the first annular protrusion and the second annular protrusion; when the pin is inserted into the socket of the sleeve, the first annular protrusion can guide and position the upper end of the pin, and the second annular protrusion can guide and position the lower end of the pin, thereby integrating the positioning structure into the sleeve, and eliminating the need to provide a positioning structure on the housing adapted to the sleeve, thereby reducing the manufacturing cost of the signal terminal. In addition, the pin inserted into the socket contacts the elastic claws, and in the same claw assembly, the plurality of elastic claws can press the pin from all sides, thereby ensuring the stability of the pin inserted into the socket; and both the first annular protrusion and the second annular protrusion have a certain clamping force on the pin, further ensuring the stability of the pin inserted into the socket. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0022] Figure 1 A schematic diagram of the structure of an elastic contact member provided in one embodiment of the utility model;
[0023] Figure 2 A cross-sectional structural diagram of an elastic contact member provided in one embodiment of the utility model;
[0024] Figure 3 This is a cross-sectional structural diagram of a signal terminal provided in one embodiment of the utility model.
[0025] The reference numerals in the specification are as follows:
[0026] 1. Elastic contact piece; 11. Sleeve; 111. Socket; 112. Window group; 1121. Window; 113. First annular protrusion; 114. Second annular protrusion; 12. Claw assembly; 121. Elastic claw; 1211. Inclined section; 1212. Contact section; 2. Housing. DETAILED DESCRIPTION
[0027] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0028] It should be understood that the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", and "middle" are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation of the present invention.
[0029] like Figure 1 and Figure 2 As shown, an elastic contact piece 1 provided in an embodiment of the utility model comprises a sleeve 11 provided with a socket 111 and at least one claw assembly 12; at least one window group 112 connected to the socket 111 is provided on the outer wall of the sleeve 11, and each of the window groups 112 comprises a plurality of windows 1121 distributed in an annular manner; it can be understood that the window group 112 can be provided with 1, 2, 3, etc., and the number of the window groups 112 is equal to the number of the claw assemblies 12.
[0030] Each of the claw assemblies 12 includes a plurality of elastic claws 121, one end of the elastic claw 121 is connected to the inner side wall of the window 1121, the other end of the elastic claw 121 extends toward the axis of the sleeve 11, and the window 1121 and the elastic claw 121 are arranged in a one-to-one correspondence; it can be understood that the upper end of the elastic claw 121 is connected to the inner side wall of the window 1121, the lower end and the left and right sides of the elastic claw 121 are not connected to the inner side wall of the window 1121, and the lower end of the elastic claw 121 extends toward the middle of the sleeve 11; each of the windows 1121 is provided with one elastic claw 121. Preferably, the sleeve 11 and all the elastic claws 121 are an integrally formed part.
[0031] The sleeve 11 is also provided with a first annular protrusion 113 and a second annular protrusion 114, both extending toward the axis thereof, and all the window groups 112 are located between the first annular protrusion 113 and the second annular protrusion 114. It can be understood that the first annular protrusion 113 and the second annular protrusion 114 both protrude toward the middle of the insertion hole 111, the first annular protrusion 113 is located above the window group 112, and the second annular protrusion 114 is located below the window group 112.
[0032] In the utility model, each claw assembly 12 includes a plurality of elastic claws 121, one end of the elastic claw 121 is connected to the inner side wall of the window 1121, and the other end of the elastic claw 121 extends toward the axis of the sleeve 11; the sleeve 11 is also provided with a first annular protrusion 113 and a second annular protrusion 114, both extending toward its axis, and all the window groups 112 are located between the first annular protrusion 113 and the second annular protrusion 114; when a pin (not shown in the figure) is inserted into the socket 111 of the sleeve 11, the first annular protrusion 113 can guide and position the upper end of the pin, and the second annular protrusion 114 can guide and position the lower end of the pin, thereby integrating the positioning structure on the sleeve 11, eliminating the need to set a positioning structure on the housing 2 adapted to the sleeve 11, thereby reducing the manufacturing cost of the signal terminal. In addition, the pin inserted in the socket 111 is in contact with the elastic claw 121. In the same claw assembly 12, multiple elastic claws 121 can press the pin from all sides, thereby ensuring the stability of the pin inserted in the socket 111; and the first annular protrusion 113 and the second annular protrusion 114 both have a certain clamping force on the pin, further ensuring the stability of the pin inserted in the socket 111.
[0033] In one embodiment, if Figure 1 and Figure 2 As shown, in the same claw assembly 12, all the elastic claws 121 are arranged at equal intervals in a ring (that is, the central angles between two adjacent windows 1121 are equal); so that in the same claw assembly 12, all the elastic claws 121 are distributed at equal intervals in a ring. After the pin is inserted into the socket 111, in the same claw assembly 12, multiple elastic claws 121 can evenly provide a pressing force to the outer side wall of the pin, further ensuring the stability of the pin inserted into the socket 111.
[0034] In one embodiment, if Figure 1 and Figure 2 As shown, the elastic contact member 1 comprises at least two claw assemblies 12 spaced apart along the axial direction of the sleeve 11, and the outer wall of the sleeve 11 is provided with at least two window groups 112 spaced apart along the axial direction thereof;
[0035] On the axial orthographic projection of the sleeve 11, all the elastic claws 121 in all the claw assemblies 12 are arranged at equal intervals in a ring. It can be understood that the staggered design of all the elastic claws 121 enables different elastic claws 121 to provide a pressing force for the plug pin inserted in the plug hole 111 from different sides, further ensuring the stability of the plug pin inserted in the plug hole 111; it also effectively reduces the positive force of the plug pin inserted in the plug hole 111, which is conducive to removing the plug pin from the plug hole 111.
[0036] In a specific embodiment, if Figure 1 and Figure 2 As shown, each of the claw assemblies 12 includes three elastic claws 121, and each of the window groups 112 includes three windows 1121 arranged in an annular pattern at equal intervals. It can be understood that in the same claw assembly 12, the central angle between two adjacent elastic claws 121 is 120 degrees. In this embodiment, each of the claw assemblies 12 includes three elastic claws 121 arranged in an annular pattern at equal intervals. The three elastic claws 121 not only ensure the stability of the pin being inserted into the socket 111, but also reduce the manufacturing cost of the elastic contact member 1.
[0037] In a specific embodiment, if Figure 1 and Figure 2 As shown, the elastic contact member 1 comprises two claw assemblies 12 spaced apart along the axial direction of the sleeve 11, and the outer wall of the sleeve 11 is provided with two window groups 112 spaced apart along the axial direction thereof;
[0038] On the axial orthographic projection of the sleeve 11, the six elastic claws 121 are arranged in a ring at equal intervals. It can be understood that in the same claw assembly 12, the central angle between two adjacent elastic claws 121 is 120 degrees; in the entire elastic contact piece 1, the central angle between two adjacent elastic claws 121 is 60 degrees. In this embodiment, all the elastic claws 121 can better clamp the pin inserted into the socket 111 in the circumferential direction, and the contact surface between the elastic claws 121 and the pin covers the entire angle, so that the contact of the pin inserted in the socket 111 is more stable; and in this embodiment, the layout structure of the elastic claws 121 contacting and connecting between the pin and the elastic contact piece 1 and the front-to-back staggered layout can also effectively reduce the positive force of the insertion, making it easier to remove the pin from the socket 111.
[0039] In a specific embodiment, if Figure 1 and Figure 2As shown, each of the elastic claws 121 includes an inclined section 1211 and a contact section 1212 connected to the inclined section 1211, and one end of the inclined section 1211 away from the contact section 1212 is connected to the inner wall of the window 1121;
[0040] The angle between the inclined section 1211 and the axial section of the sleeve 11 is a first angle, and the angle between the contact section 1212 and the axial section of the sleeve 11 is a second angle. The first angle is greater than the second angle, and the first angle is an acute angle. It can be understood that the lower part of the inclined section 1211 extends toward the middle of the plug hole 111; when the plug pin is inserted into the plug hole 111, the contact section 1212 is lowered on the plug pin, and the inclined section 1211 provides elastic force for the contact section 1212, so that the contact section 1212 can be tightly pressed against the plug pin.
[0041] In a specific embodiment, the second angle is 0 degrees; at this time, the contact segment 1212 is parallel to the axial section of the sleeve 11, so that the contact segment 1212 can fit tightly on the pin, further ensuring the stability of the pin being inserted into the socket 111.
[0042] like Figure 3 As shown, the second embodiment of the utility model further provides a signal terminal, comprising a housing 2 provided with a mounting hole and the elastic contact member 1, wherein the sleeve 11 is installed in the mounting hole. In this embodiment, the first annular protrusion 113 can guide and position the upper end of the pin, and the second annular protrusion 114 can guide and position the lower end of the pin, thereby integrating the positioning structure on the sleeve 11, eliminating the need to provide a positioning structure on the housing 2, and reducing the manufacturing cost of the signal terminal.
[0043] The second embodiment of the present invention further provides an electrical connector, comprising a plug pin (not shown in the figure) and the above-mentioned signal terminal, wherein the plug pin is detachably plugged into the plug hole 111 .
[0044] The above are only embodiments of the elastic contact member of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An elastic contact member, characterized in that: It comprises a sleeve with an insertion hole and at least one claw assembly; the outer wall of the sleeve is provided with at least one window group connected to the insertion hole, and each of the window groups comprises a plurality of windows distributed in an annular manner; Each of the claw assemblies comprises a plurality of elastic claws, one end of each of the elastic claws is connected to the inner side wall of the window, the other end of each of the elastic claws extends toward the axis of the sleeve, and the windows and the elastic claws are arranged in one-to-one correspondence; The sleeve is also provided with a first annular protrusion and a second annular protrusion, both extending toward the axis thereof, and all the window groups are located between the first annular protrusion and the second annular protrusion.
2. The elastic contact member according to claim 1, characterized in that: In the same clamping claw assembly, all the elastic clamping claws are arranged in a ring-shaped manner with equal intervals.
3. The elastic contact member according to claim 2, characterized in that: The elastic contact member comprises at least two claw assemblies spaced apart along the axial direction of the sleeve, and the outer wall of the sleeve is provided with at least two window groups spaced apart along the axial direction thereof; On the orthographic projection of the sleeve in the axial direction, the elastic claws in all the elastic claw assemblies are arranged in an annular manner with equal intervals.
4. The elastic contact member according to claim 1, characterized in that: Each of the claw assemblies includes three elastic claws, and each of the window groups includes three windows that are equally spaced in an annular shape.
5. The elastic contact member according to claim 4, characterized in that: The elastic contact member comprises two claw assemblies spaced apart along the axial direction of the sleeve, and the outer wall of the sleeve is provided with two window groups spaced apart along the axial direction thereof; On the axial orthographic projection of the sleeve, the six elastic claws are arranged in an annular shape at equal intervals.
6. The elastic contact member according to any one of claims 1 to 5, characterized in that: The sleeve and all the elastic claws are an integrally formed part.
7. The elastic contact member according to any one of claims 1 to 5, characterized in that: Each of the elastic claws comprises an inclined section and a contact section connected to the inclined section, and one end of the inclined section away from the contact section is connected to the inner side wall of the window; The angle between the inclined section and the axial section of the sleeve is a first angle, the angle between the contact section and the axial section of the sleeve is a second angle, the first angle is greater than the second angle, and the first angle is an acute angle.
8. The elastic contact member according to claim 7, characterized in that: The second angle is 0 degree.
9. A signal terminal, characterized in that: It comprises a housing provided with a mounting hole and the elastic contact piece according to any one of claims 1 to 8, wherein the sleeve is mounted in the mounting hole.
10. An electrical connector, characterized in that: It comprises a plug pin and the signal terminal as claimed in claim 9, wherein the plug pin can be detachably plugged into the plug hole.