Conductive terminal structure and socket

By introducing a concave connecting rib and a suspended contact spring design into the conductive terminal structure, the problems of high insertion force and easy damage of the pin are solved, achieving good electrical contact and improved reliability, and is suitable for conductive terminals in circuit board sockets.

CN120728280APending Publication Date: 2025-09-30BELLWETHER ELECTRONICS KUNSHAN
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Patent Information

Application Number
CN202410366539.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-03-28
Publication Date
2025-09-30

AI Technical Summary

Technical Problem

The existing conductive terminal structure requires a large force when inserting the pin, is easily damaged, and has difficulty in balancing electrical contact and insertion force.

Method used

The conductive terminal structure is designed with two supporting parts, multiple connecting ribs and at least one spring. The connecting ribs are concave, and the contact end of the spring is suspended in the air. The pin first contacts the spring and then contacts the connecting ribs. The design of the connecting ribs and the spring is combined to reduce the insertion force and protect the spring.

Benefits of technology

The pin insertion force is reduced, ensuring electrical contact while protecting the spring, improving the reliability and service life of the conductive terminal, reducing contact impedance, and facilitating current transmission.

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Abstract

The invention relates to a conductive terminal structure and a socket. The conductive terminal structure comprises two supporting parts, a plurality of connecting ribs and at least one elastic sheet. The two support portions are spaced apart and extend along a first direction. The connecting ribs are arranged at intervals and extend in the second direction perpendicular to the first direction. The two ends of each connecting rib are connected with the two supporting parts respectively, and the connecting ribs are in an inward concave shape. The elastic piece extends in the second direction and is provided with a fixed end and a contact end which are opposite. The fixed end is connected with one of the two supporting parts, and the contact end is suspended. When the conductive terminal structure is wound to form a space, the contact end of the elastic sheet and the connecting rib protrude towards the space, and the contact pin inserted into the space is configured to be electrically contacted. According to the conductive terminal structure, the insertion force required by the contact pin can be reduced, and the electric contact between the contact pin and the elastic sheet can be ensured.
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Description

Technical Field

[0001] The present disclosure relates to a conductive terminal structure and a socket having the conductive terminal structure. Background Art

[0002] To achieve electrical connections between different electronic devices, various types of electrical connectors exist. Electrical connectors can be categorized by their placement into two types: cable-side connectors and board-side connectors. Cable-side connectors are located at one end of a cable, while board-side connectors are located on a circuit board. With the continuous advancement and innovation of various electronic product technologies, the performance of new electronic products has significantly improved, and the types of electrical signals have become more diverse, requiring greater bandwidth and power.

[0003] Due to technological advancements, electronic devices are increasingly demanding more current, so power connectors require better power terminals to withstand greater currents. Generally speaking, the conductive terminals used in circuit board sockets are made of copper to provide better conductivity. In order to achieve excellent current transmission, a large number of strip-shaped connecting ribs can be designed on the conductive terminals as contacts, and used to clamp the pins of the male terminals to form better electrical contact. However, if the structure of the conductive terminals is not specially designed, greater force may be required when inserting the pins, causing inconvenience and easy damage. As a result, it is difficult to strike a balance between excellent electrical contact and appropriate insertion force. Summary of the Invention

[0004] According to some embodiments of the present disclosure, a conductive terminal structure includes two supporting parts, a plurality of connecting ribs and at least one spring. The two supporting parts are separated by a distance and extend along a first direction. The connecting ribs are arranged at intervals and extend along a second direction perpendicular to the first direction. The two ends of each connecting rib are respectively connected to the two supporting parts, and the connecting rib is concave. The spring extends along the second direction and has a fixed end and a contact end relative to each other. The fixed end is connected to one of the two supporting parts, and the contact end is suspended. When the conductive terminal structure is wound to form a space, the contact end of the spring and the connecting rib protrude into the space and are configured to electrically contact the pin inserted into the space.

[0005] In some embodiments, the conductive terminal structure includes a plurality of spring clips arranged in an upper row and a lower row. The spring clips in the upper row extend from the upper of the two support portions, and the spring clips in the lower row extend from the lower of the two support portions.

[0006] In some embodiments, one of the spring sheets in the upper row is located between two of the spring sheets in the lower row, and the other is located between one of the spring sheets in the lower row and one of the connecting bars; one of the spring sheets in the lower row is located between two of the spring sheets in the upper row, and the other is located between one of the spring sheets in the upper row and one of the connecting bars.

[0007] In some embodiments, the spring pieces in the upper row and the spring pieces in the lower row are staggered and arranged in a tooth shape.

[0008] In some embodiments, a connecting line of the centers of the connecting ribs is located between a connecting line of the contact ends of the upper row of spring pieces and a connecting line of the contact ends of the lower row of spring pieces.

[0009] In some embodiments, a line connecting the contact ends of the spring pieces in the upper row, a line connecting the centers of the connecting ribs, and a line connecting the contact ends of the spring pieces in the lower row are three parallel lines.

[0010] In some embodiments, the width of the elastic piece gradually decreases from the fixed end to the contact end.

[0011] In some embodiments, the elastic height of the connecting rib is smaller than the elastic height of the contact end of the spring piece, so that the contact end is deeper into the space than the connecting rib.

[0012] In some embodiments, the two supporting parts, the connecting ribs and the spring sheet are integrally formed metal sheets.

[0013] According to some embodiments of the present disclosure, a socket includes a connecting body and a conductive terminal structure. The connecting body has an accommodating space configured for insertion of a pin. The conductive terminal structure is wound and arranged in the accommodating space of the connecting body. When the pin is inserted into the accommodating space, the conductive terminal structure is located between the connecting body and the pin to make the connecting body and the pin conductive. The conductive terminal structure includes two supporting parts, a plurality of connecting ribs and at least one spring. The two supporting parts are separated by a distance and extend along a first direction. The connecting ribs are arranged at intervals and extend along a second direction perpendicular to the first direction. The two ends of each connecting rib are respectively connected to the two supporting parts, and the connecting rib is concave. The spring extends along the second direction and has a fixed end and a contact end relative to each other. The fixed end is connected to one of the two supporting parts, and the contact end is suspended. The contact end of the spring and the connecting rib protrude into the accommodating space and electrically contact the pin.

[0014] In the above-mentioned embodiment of the present disclosure, since the conductive terminal structure in the socket has a connecting rib and a spring sheet, the two ends of the connecting rib are respectively connected to the two support parts, and the fixed end of the spring sheet is connected to the support part while the contact end is suspended. Therefore, when the pin is inserted into the wound conductive terminal structure, the pin will first abut the contact end of the spring sheet and then abut the concave connecting rib. In this way, the insertion force required for the pin can be reduced, and the electrical contact between the pin and the spring sheet can be ensured. In addition, in addition to being able to electrically contact the pin, the connecting rib can also protect the spring sheet from being permanently deformed by excessive squeezing of the pin, and the connecting rib can press the conductive terminal structure tightly against the connecting body under the squeezing of the pin to ensure good electrical contact. In other words, the connecting rib can improve the reliability and service life of the spring sheet, and can effectively reduce the contact impedance between the conductive terminal structure and the connecting body, which is beneficial to current transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] When accompanied by Figure 1 The present disclosure is best understood from the following detailed description when read together. Note that, in accordance with standard practice in this industry, various features are not drawn to scale. In fact, the dimensions of various features may be arbitrarily increased or decreased for clarity of discussion.

[0016] Figure 1 A three-dimensional diagram of a socket and a pin according to one embodiment of the present disclosure is shown.

[0017] Figure 2 Draw Figure 1 Exploded view of the socket.

[0018] Figure 3 Draw Figure 2 An enlarged view of the conductive terminal structure.

[0019] Figure 4 Draw Figure 3 A top view of the conductive terminal structure after it is unfolded.

[0020] Figure 5 Draw Figure 4 A top view of the conductive terminal structure after winding.

[0021] Figure 6 Draw Figure 1 A perspective view of the connector body is omitted after the pin is inserted into the socket.

[0022]

Main component symbol description

[0023] 100: Conductive terminal structure 110a, 110b: Support portion

[0024] 120: Connecting bars 130: Shrapnel

[0025] 132: Fixed end 134: Contact end

[0026] 200: socket 210: connection body

[0027] 212: Accommodation space 300: Pin

[0028] D1: first direction D2: second direction

[0029] H1, H2: Spring height L1, L2, L3: Connection line

[0030] S: Space DETAILED DESCRIPTION

[0031] The embodiments disclosed below provide many different embodiments, or examples, for implementing the various features of the subject matter provided. Specific examples of components and arrangements are described below to simplify the present invention. Of course, the examples are merely examples and are not intended to be limiting. In addition, the present invention may repeat element symbols and / or letters in each example. This repetition is for the purpose of simplicity and clarity and does not, in itself, specify the relationship between the various embodiments and / or configurations discussed.

[0032] Spatially relative terms such as "below," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive purposes to describe the relationship of one element or feature to another element or feature as illustrated in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein should be interpreted accordingly.

[0033] Figure 1 A three-dimensional view of a socket 200 and a plug pin 300 according to an embodiment of the present disclosure is shown. Figure 2 Draw Figure 1 See also the exploded view of the socket 200. Figure 1 and Figure 2 The socket 200 can be inserted into the pin 300 to achieve electrical contact and transmit current. In some embodiments, the socket 200 can be a board or wire end connector. In one embodiment, the socket 200 can be set on a circuit board. Both the socket 200 and the pin 300 can be electrically connected to other electronic devices. The socket 200 includes a connecting body 210 and a conductive terminal structure 100. The connecting body 210 has a receiving space 212 that can accommodate the conductive terminal structure 100 and allow the pin 300 to be inserted; the connecting body 210 can be a metal sleeve. The conductive terminal structure 100 is wound and arranged in the receiving space 212 of the connecting body 210, and the conductive terminal structure 100 can form a space S by being wound. When the pin 300 is inserted into the receiving space 212 of the connecting body 210, it is also inserted into the space S surrounded by the conductive terminal structure 100, so that the conductive terminal structure 100 is located between the connecting body 210 and the pin 300. In this way, the connection body 210 and the plug pin 300 are electrically connected via the conductive terminal structure 100 . In other words, the conductive terminal structure 100 increases the contact area between the connection body 210 and the plug pin 300 .

[0034] In some embodiments, the bottom of the connector body 210 has a stopper to prevent the conductive terminal structure 100 from being pushed out of the connector body 210 when the pin 300 is inserted. The connector body 210 may have a housing that extends above the top of the conductive terminal structure 100 to prevent the conductive terminal structure 100 from being pulled out of the connector body 210 when the pin 300 is removed. Furthermore, the connector body 210 is a metal conductor. The conductive terminal structure 100 and the pin 300 may be made of copper, but this is not intended to limit the present disclosure.

[0035] In the following description, the design of the conductive terminal structure 100 will be described in detail.

[0036] Figure 3 Draw Figure 2 An enlarged view of the conductive terminal structure 100 is shown. Figure 4 Draw Figure 3 A top view of the conductive terminal structure 100 after it is unfolded. Figure 3 and Figure 4 The conductive terminal structure 100 includes two supporting parts 110a and 110b, a plurality of connecting ribs 120 and at least one spring 130. The two supporting parts 110a and 110b are spaced apart and extend along a first direction D1. The connecting ribs 120 are arranged at intervals and extend along a second direction D2 perpendicular to the first direction D1. The two ends of the connecting rib 120 are respectively connected to the two supporting parts 110a and 110b, and when the connecting rib 120 is arranged in a plane, the middle section away from the two supporting parts 110a and 110b is concave. In this embodiment, the center of the connecting rib 120 protrudes into the interior of the space S formed by winding the conductive terminal structure 100. The spring 130 extends away from the two supporting parts 110a and 110b, and has opposite fixed ends 132 and contact ends 134. The fixed end 132 of the spring 130 is connected to one of the two supporting parts 110a and 110b, and the contact end 134 is a free end. In this way, the connecting bar 120 can be regarded as a simply supported beam design, and the spring piece 130 can be regarded as a cantilever beam design.

[0037] When the conductive terminal structure 100 is wound to form the space S, the contact end 134 of the spring 130 and the connecting rib 120 both protrude toward the space S, that is, toward Figure 2 Therefore, the contact end 134 of the spring 130 and the concave connecting rib 120 can electrically contact the insertion space S and the pin 300 of the accommodating space 212 (see Figure 1 ).

[0038] In this embodiment, the two support portions 110a, 110b, the connecting rib 120, and the spring 130 can be an integrally formed metal sheet (e.g., a copper sheet) that can be stamped. The hollow areas between adjacent springs 130 and between the connecting rib 120 and the spring 130 can be formed by blanking rather than tearing. Therefore, when the spring 130 is pressed, it will not become stuck in the tearing opening and lose its function, unlike traditional tear-type terminals. The thickness of the metal sheet can range from 0.3 mm to 0.5 mm, and the width of the hollow area can range from 0.7 mm to 1.2 mm, depending on design requirements.

[0039] See also Figure 1 and Figure 3 Specifically, because the conductive terminal structure 100 in the socket 200 includes a connecting rib 120 and a spring 130, the connecting rib 120 has two ends connected to the two support portions 110a and 110b, respectively. The fixed end 132 of the spring 130 is connected to one of the support portions 110a and 110b, while the contact end 134 is suspended in the air. Therefore, when the pin 300 is inserted into the wound conductive terminal structure 100, the pin 300 first abuts the contact end 134 of the spring 130 and then abuts the concave connecting rib 120. This reduces the insertion force required for the pin 300 and ensures electrical contact between the pin 300 and the spring 130. Furthermore, the connecting rib 120 not only provides electrical contact with the pin 300 but also protects the spring 130 from permanent deformation caused by excessive compression from the pin 300. Furthermore, the connecting rib 120, under the compression of the pin 300, holds the conductive terminal structure 100 tightly against the connecting body 210, ensuring good electrical contact. In other words, the connecting rib 120 improves the reliability and service life of the spring 130 and effectively reduces the contact impedance between the conductive terminal structure 100 and the connecting body 210, facilitating current transmission.

[0040] See Figure 4In this embodiment, the conductive terminal structure 100 includes a plurality of spring clips 130. The spring clips 130 are arranged in an upper row and a lower row. The spring clips 130 in the upper row extend downward from the upper support portion 110a, and the spring clips 130 in the lower row extend upward from the lower support portion 110b. One of the spring clips 130 in the upper row (for example, the second spring clip 130 on the left side of the upper row) can be located between the two spring clips 130 in the lower row, and the other (for example, the first spring clip 130 on the left side of the upper row) can be located between the spring clips 130 in the lower row and the connecting rib 120. Similarly, one of the spring clips 130 in the lower row (for example, the first spring clip 130 on the left side of the lower row) can be located between the two spring clips 130 in the upper row, and the other (for example, the second spring clip 130 on the left side of the lower row) can be located between the spring clips 130 in the upper row and the connecting rib 120. The width of the springs 130 gradually decreases from the fixed end 132 toward the contact end 134, and the springs 130 in the upper row are staggered with the springs 130 in the lower row, forming a tooth-like arrangement. This design effectively reduces the pitch of the springs 130, allowing the conductive terminal structure 100 to have more springs 130 while maintaining the same width, thereby facilitating current transmission.

[0041] Furthermore, the line L1 connecting the contact ends 134 of the lower row of spring clips 130 is close to the upper support portion 110a, while the line L2 connecting the contact ends 134 of the upper row of spring clips 130 is close to the lower support portion 110b. The line L3 connecting the centers of the connecting ribs 120 is located between the line L2 connecting the contact ends 134 of the upper row of spring clips 130 and the line L1 connecting the contact ends 134 of the lower row of spring clips 130. The line L1 connecting the contact ends 134 of the lower row of spring clips 130, the line L3 connecting the centers of the connecting ribs 120, and the line L2 connecting the contact ends 134 of the upper row of spring clips 130 form three parallel lines. When the pin 300 is inserted into the wound conductive terminal structure 100 , it can sequentially pass through the contact end 134 of the lower spring sheet 130 , the center of the connecting rib 120 , and the contact end 134 of the upper spring sheet 130 , that is, sequentially pass through the connection lines L1 , L2 , and L3 .

[0042] Figure 5 Draw Figure 4 As shown in the figure, the spring height H1 of the connecting rib 120 of the conductive terminal structure 100 is smaller than the spring height H2 of the contact end 134 of the spring piece 130, so that after the conductive terminal structure 100 is wound, the contact end 134 of the spring piece 130 can penetrate deeper into the space S than the connecting rib 120.

[0043] In the following description, the process of inserting the aforementioned pin 300 into the space S of the conductive terminal structure 100 will be explained.

[0044] Figure 6 Draw Figure 1The pin 300 is inserted into the socket 200, and the connection body 210 is omitted. When the pin 300 is inserted into the space S of the conductive terminal structure 100, it will first abut the contact end 134 of the lower row of springs 130 (such as Figure 4 The contact end 134 through which the line L1 passes, the spring 130 allows the pin 300 to continue to be inserted due to its elasticity and abuts against the center of the connecting rib 120 (such as Figure 4 The connecting line L3 passes through the position), and then the pin 300 continues to be inserted and further abuts against the contact end 134 of the upper row of springs 130 (such as Figure 4 Line L2 passes through the contact end 134. Because the spring height H1 of the connecting rib 120 is less than the spring height H2 of the contact end 134 of the spring clip 130, sufficient pressure can be applied to the spring clip 130 to ensure electrical contact between the contact end 134 of the spring clip 130 and the pin 300. Furthermore, the center of the connecting rib 120 can be used to limit the radial position of the pin 300, preventing excessive compression of the contact end 134 of the spring clip 130 and affecting its service life. For example, when compressed by the pin 300, the contact end 134 of the spring clip 130 is only depressed from the spring height H2 to approximately the spring height H1.

[0045] The foregoing summarizes the features of several embodiments so that those skilled in the art can better understand the aspects of the present disclosure. Those skilled in the art will appreciate that they can easily use this disclosure as a basis for designing or modifying other processes and structures to achieve the same purposes and / or achieve the same advantages as the embodiments described herein. Those skilled in the art will also appreciate that such equivalent constructions do not depart from the spirit and scope of the present disclosure, and that various changes, substitutions, and modifications may be made herein without departing from the spirit and scope of the present disclosure.

Claims

1. A conductive terminal structure, characterized in that: include: Two support portions, spaced apart and extending along a first direction; a plurality of connecting ribs arranged at intervals and extending along a second direction perpendicular to the first direction, wherein two ends of each of the plurality of connecting ribs are respectively connected to the two supporting portions, and the plurality of connecting ribs are concave; as well as At least one spring sheet extends along the second direction and has a fixed end and a contact end relative to each other, wherein the fixed end is connected to one of the two supporting parts and the contact end is suspended in the air. When the conductive terminal structure is wound to form a space, the contact end of the spring sheet and the multiple connecting ribs protrude into the space and are configured to electrically contact the pins inserted into the space.

2. The conductive terminal structure according to claim 1, wherein: The plurality of spring sheets are arranged into an upper row and a lower row. The spring sheets in the upper row extend from the upper of the two supporting parts, and the spring sheets in the lower row extend from the lower of the two supporting parts.

3. The conductive terminal structure according to claim 2, wherein: One of the multiple spring sheets in the upper row is located between two of the multiple spring sheets in the lower row, and the other is located between one of the multiple spring sheets in the lower row and one of the multiple connecting bars; one of the multiple spring sheets in the lower row is located between two of the multiple spring sheets in the upper row, and the other is located between one of the multiple spring sheets in the upper row and one of the multiple connecting bars.

4. The conductive terminal structure according to claim 2, wherein: The plurality of spring pieces in the upper row and the plurality of spring pieces in the lower row are staggered and arranged in a tooth shape.

5. The conductive terminal structure according to claim 2, wherein: A connecting line of centers of the plurality of connecting ribs is located between a connecting line of the plurality of contact ends of the plurality of spring pieces in the upper row and a connecting line of the plurality of contact ends of the plurality of spring pieces in the lower row.

6. The conductive terminal structure according to claim 5, wherein: The connecting line of the contact ends of the plurality of spring sheets in the upper row, the connecting line of the centers of the plurality of connecting ribs, and the connecting line of the contact ends of the plurality of spring sheets in the lower row are three parallel lines.

7. The conductive terminal structure according to claim 1, wherein: The width of the elastic piece gradually decreases from the fixed end to the contact end.

8. The conductive terminal structure according to claim 1, wherein: The elastic height of the plurality of connecting ribs is smaller than the elastic height of the contact end of the spring piece, so that the contact end is deeper into the space than the plurality of connecting ribs.

9. The conductive terminal structure according to claim 1, wherein: The two supporting parts, the multiple connecting ribs and the spring are integrally formed metal sheets.

10. A socket, characterized in that: include: The connecting body has a receiving space configured for the pin to be inserted; as well as A conductive terminal structure is wound and disposed in the accommodating space of the connecting body, wherein when the plug pin is inserted into the accommodating space, the conductive terminal structure is located between the connecting body and the plug pin, thereby connecting the connecting body and the plug pin, and the conductive terminal structure includes: Two support portions, spaced apart and extending along a first direction; a plurality of connecting ribs arranged at intervals and extending along a second direction perpendicular to the first direction, wherein two ends of each of the plurality of connecting ribs are respectively connected to the two supporting portions, and the plurality of connecting ribs are concave; and At least one spring sheet extends along the second direction and has a fixed end and a contact end relative to each other, wherein the fixed end is connected to one of the two supporting parts, and the contact end is suspended in the air, and the contact end of the spring sheet and the multiple connecting ribs protrude into the accommodating space and electrically contact the pins.

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