Multi-faceted contact high current terminal and connector
By designing multi-faceted high-current terminals and utilizing multiple spring arms and flange structures to increase the contact area and insertion stability, the problems of traditional connector terminals under high current and vibration environments are solved, thereby improving the stability and applicability of electronic devices.
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
- 2026-06-09
AI Technical Summary
Traditional connector terminals have small contact areas, which leads to severe temperature rise in high-current applications and makes the contacts prone to detachment under vibration, affecting the stability and reliability of electronic devices.
A multi-faceted contact high-current terminal is designed, which abuts against the pin from three end faces through the first, second and third spring arms to increase the contact area, and clamps the pin through multiple faces. The flanged structure is used to improve the insertion stability and vibration resistance.
It effectively increases the contact area, improves the stability and vibration resistance of the connection, is suitable for high current conditions, reduces insertion and extraction force, adapts to various connection methods, and enhances the stability and reliability of electronic equipment.
Smart Images
Figure CN224342557U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, and in particular to a multi-faceted contact high-current terminal and connector. Background Technology
[0002] With the rapid development of electronic technology, the performance requirements for connector terminals in various electronic devices are becoming increasingly stringent. Traditional connector terminals have gradually revealed numerous drawbacks during long-term use. On the one hand, the contact area of traditional connector terminals is relatively small. In applications requiring high current flow, this small contact area leads to increased resistance, resulting in severe temperature rise. Even with a small increase in resistance, the heat generated can rise sharply when the current is high. This sustained high temperature rise not only accelerates the aging of the terminal material, reducing its mechanical and electrical properties, but also poses a risk of connector terminal failure, significantly impacting the stability and reliability of electronic equipment. On the other hand, in complex vibration environments, traditional single or double-contact terminals, due to their limited contact points, are prone to momentary disconnection when subjected to vibration and impact, causing instantaneous circuit interruption. Although this momentary interruption is brief, it can lead to serious consequences such as data loss and equipment failure for devices with extremely high circuit continuity requirements, such as precision electronic measuring instruments and communication equipment. Utility Model Content
[0003] Based on this, the purpose of this utility model is to provide a multi-faceted contact high-current terminal. By setting a first spring arm, a second spring arm, and a third spring arm to simultaneously abut against the pin from three end faces, the contact area with the pin is greatly increased. At the same time, the pin is clamped from multiple faces, which effectively increases the insertion stability of the terminal and the pin and improves its insertion vibration resistance.
[0004] Another objective of this invention is to provide a connector that uses multi-faceted contact high-current terminals, which has low insertion and extraction force while ensuring insertion stability and can be applied to high-current conditions; at the same time, it can adapt to forward or reverse insertion of the pins and is suitable for various usage environments.
[0005] A multi-faceted contact high-current terminal, connected to a pin, comprising:
[0006] Connect the main body;
[0007] The first and second spring arms extend in the same direction and are connected to the plug-in body; the free ends of the first and second spring arms are bent toward the same side of the plug-in body to form a first contact portion and a second contact portion, and the pin is clamped between the first contact portion and the second contact portion;
[0008] The third spring arm has one end extended and connected to the plug body, and the other end is bent in the same direction as the first spring arm and the second spring arm to form a third contact portion, which elastically abuts against the pin.
[0009] Furthermore, the plug-in body has a first slit, the third elastic arm is disposed in the first slit, and one end of the third elastic arm extends and connects to the edge of the first slit, while the other end extends along the length direction of the plug-in body.
[0010] Furthermore, the free end of the third elastic arm is bent toward the plane where the first cut is located, so that its end is inserted into the first cut.
[0011] Furthermore, the first contact portion and the second contact portion are respectively provided with a first contact point and a second contact point that protrude relatively; the first contact point and the second contact point abut against the opposite end faces of the pin.
[0012] Furthermore, the first contact has a first flange extending toward one side of the plug-in body; the second contact has a second flange extending toward one side of the plug-in body.
[0013] Preferably, the first flange and the second flange are symmetrically arranged arc surfaces.
[0014] Furthermore, the height difference between the plane containing the first contact portion and the second contact portion and the plane of the insertion body is greater than or equal to the thickness of the pin.
[0015] Furthermore, the plug-in body has a snap-fit structure on one or both sides along its width direction.
[0016] Furthermore, a multi-faceted contact high-current terminal also includes:
[0017] The connecting portion extends and connects to the end of the plug-in body away from the first spring arm, and bends in the opposite direction to the first spring arm.
[0018] The present invention provides a connector comprising: the multi-faceted contact high-current terminal described in the present invention.
[0019] The beneficial effects of this utility model are as follows:
[0020] (1) By setting the first spring arm, the second spring arm and the third spring arm to simultaneously abut against the pin from three end faces, the contact area with the pin is greatly increased, which is suitable for high current conditions.
[0021] (2) By setting multiple spring arms to clamp the pin from multiple faces at the same time, the insertion stability of the terminal and the pin is effectively increased, and its insertion vibration resistance is improved.
[0022] (3) By setting a flange structure on the first contact and the second contact, the contact area between the first spring arm and the second spring arm and the pin is increased, thereby further increasing its high current resistance and the pin clamping stability.
[0023] (4) Pins can be installed from multiple directions and angles. In some special electronic equipment assembly scenarios, it can meet the requirement that pins be inserted from bottom to top into the connector terminals.
[0024] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the insertion of traditional connector terminals;
[0026] Figure 2 A schematic diagram of the insertion of multi-faceted contact high-current terminals provided in an embodiment of this application;
[0027] Figure 3 This is a schematic diagram of the structure of a multi-faceted contact high-current terminal provided in an embodiment of this application;
[0028] Figure 4 for Figure 3 A magnified view of a portion of the image;
[0029] Figure 5 Right view of a multi-faceted contact high-current terminal;
[0030] In the diagram: 100 - terminal; 10 - plug-in body; 11 - first notch; 12 - snap-fit structure; 20 - first spring arm; 21 - first contact part; 211 - first contact point; 212 - first flange; 30 - second spring arm; 31 - second contact part; 311 - second contact point; 312 - second flange; 40 - third spring arm; 41 - third contact part; 50 - connecting part; 200 - pin; 300 - conventional connector terminal; 301 - conventional contact point. Detailed Implementation
[0031] 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.
[0032] 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.
[0033] 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.
[0034] Please see Figure 1 Traditional connector terminals 300 typically use one or two traditional contacts 301 for contact, and their contact area is relatively small. In applications that require high current, the small contact area can cause serious temperature rise problems. This continuous high temperature rise not only accelerates the aging of the terminal material and reduces its mechanical and electrical properties, but also poses a risk of connector terminal failure in severe cases, which greatly affects the stability and reliability of electronic equipment operation.
[0035] Based on this, please refer to Figure 2-5 This application provides a multi-faceted contact high-current terminal for connection to a pin 200, comprising: a plug-in body 10, a first spring arm 20 and a second spring arm 30 extending and connected to the plug-in body 10, and a third spring arm 40. The first spring arm 20 and the second spring arm 30 extend and connect to the plug-in body 10 in the same direction; the free ends of the first spring arm 20 and the second spring arm 30 are bent toward the same side of the plug-in body 10 to form a first contact portion 21 and a second contact portion 31, and the pin 200 is sandwiched between the first contact portion 21 and the second contact portion 31. One end of the third spring arm 40 extends and connects to the plug-in body 10, and the other end is bent in the same direction as the first spring arm 20 to form a third contact portion 41, which elastically abuts against the pin 200.
[0036] This embodiment of the application, by simultaneously abutting the pin 200 from three end faces with the first spring arm 20, the second spring arm 30, and the third spring arm 40, greatly increases the contact area with the pin 200. Simultaneously, it clamps the pin 200 from multiple faces, effectively increasing the insertion stability of the terminal 100 and the pin 200 and improving its vibration resistance. Furthermore, this arrangement allows the pin 200 to be installed from multiple directions and angles, meeting the requirement for bottom-to-top insertion of the pin 200 into the connector terminal 100 in certain special electronic equipment assembly scenarios.
[0037] Furthermore, in some embodiments, the first contact portion 21 and the second contact portion 31 are respectively provided with relatively protruding first contact points 211 and second contact points 311. The pin 200 is inserted between the first contact portion 21 and the second contact portion 31, and elastic connection with the terminal 100 is achieved by pressing the first contact points 211 and the second contact points 311. It can be understood that the first contact points 211 and the second contact points 311 have a structure with a central protrusion and beveled surfaces on both sides, which facilitates the insertion of the pin 200 in the forward or reverse direction along the length of the terminal 100. This expands the usage and application environment of the terminal 100 and improves the applicability of the terminal 100. Preferably, the first contact points 211 and the second contact points 311 are both arc-shaped with a central outward protrusion. This arrangement plays a guiding role when the pin 200 is inserted, reducing the insertion and extraction force during use.
[0038] Furthermore, in some embodiments, the first contact 211 includes a first flange 212 extending toward the side of the plug-in body 10; the second contact 311 includes a second flange 312 extending toward the side of the plug-in body 10. This can increase the contact area between the first spring arm 20 and the second spring arm 30 and the pin 200, which can be applied to high current conduction and improve the stability and applicability of the terminal 100.
[0039] Similarly, the first flange 212 and the second flange 312 are symmetrically arranged arc-shaped surfaces, which facilitates the insertion of the pin 200 from the forward or reverse direction, reduces the insertion and extraction force during the insertion process of the terminal 100 and the pin 200, avoids damage to the terminal 100 caused by rigid insertion and extraction, and improves the service life and contact stability of the terminal 100.
[0040] Preferably, the height difference between the plane of the first contact portion 21 and the second contact portion 31 and the insertion body 10 is greater than or equal to the thickness of the pin 200. This allows the terminal 100 to completely cover the pin 200 in the thickness direction, preventing the pin 200 from being exposed in the thickness direction. In this configuration, the contact area between the first spring arm 20 and the second spring arm 30 and the pin 200 can be increased by adjusting the flange height of the first flange 212 and the second flange 312, thereby maximizing the contact area.
[0041] Furthermore, in some embodiments, the insertion body 10 is provided with a first cut 11, and a third spring arm 40 is disposed within the first cut 11, with one end extending and connected to the edge of the first cut 11, and the other end extending along the length direction of the insertion body 10. Specifically, in some embodiments, the third spring arm 40 may extend toward the first spring arm 20 and the second spring arm 30; in other embodiments, the third spring arm 40 may extend away from the first spring arm 20.
[0042] Please see Figure 3 and Figure 5 Furthermore, in some embodiments, the free end of the third spring arm 40 is bent toward the plane of the first cut 11 so that its end is inserted into the first cut 11. It is understood that in this configuration, neither the extended connecting end nor the free end of the third spring arm 40 protrudes from the plane of the first cut 11. Thus, during the insertion process, whether the pin 200 is inserted from the extended connecting end of the third spring arm 40 or from the free end of the third spring arm 40, the pin 200 can slide against the third contact portion 41 and press the third contact portion 41 toward the first cut 11, causing the third spring arm 40 to undergo elastic deformation under pressure and elastically abut against an outer wall surface of the pin 200.
[0043] Please see Figure 3 Furthermore, in some embodiments, the plug-in body 10 is provided with a snap-fit structure 12 on one or both sides along its width direction for snap-fitting with the plastic shell, which will not be described in detail here.
[0044] Furthermore, in some embodiments, the multi-faceted contact high-current terminal 100 also includes a connecting portion 50 for fixing to the PCB. Specifically, the connecting portion 50 extends to the end of the plug-in body 10 away from the first spring arm 20 and is bent in the opposite direction to the first spring arm 20. In this configuration, the pin 200 can be plugged into the terminal 100 in either the forward or reverse direction without contacting the connecting portion 50.
[0045] Please see Figure 2 This application also provides a connector that uses a multi-faceted contact high-current terminal 100, which has low insertion and extraction force while ensuring insertion stability and can be applied to high current conditions; at the same time, it can adapt to forward or reverse insertion of the pin 200, and is suitable for a variety of usage environments.
[0046] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows:
[0047] (1) By setting the first spring arm, the second spring arm and the third spring arm to simultaneously abut against the pin from three end faces, the contact area with the pin is greatly increased, which is suitable for high current conditions.
[0048] (2) By setting multiple spring arms to clamp the pin from multiple faces at the same time, the insertion stability of the terminal and the pin is effectively increased, and its insertion vibration resistance is improved.
[0049] (3) By setting a flange structure on the first contact and the second contact, the contact area between the first spring arm and the second spring arm and the pin is increased, thereby further increasing its high current resistance and the pin clamping stability.
[0050] (4) Pins can be installed from multiple directions and angles. In some special electronic equipment assembly scenarios, it can meet the requirement that pins be inserted from bottom to top into the connector terminals.
[0051] 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 multi-faceted contact high-current terminal, connected to a pin, characterized in that, include: Connect the main body; The first and second spring arms extend in the same direction and are connected to the plug-in body; The free ends of the first spring arm and the second spring arm are both bent toward the same side of the insertion body to form a first contact portion and a second contact portion, and the pin is clamped between the first contact portion and the second contact portion; The third spring arm has one end extended and connected to the plug body, and the other end is bent in the same direction as the first spring arm and the second spring arm to form a third contact portion, which elastically abuts against the pin.
2. The multi-faceted contact high-current terminal according to claim 1, characterized in that: The plug-in body has a first cut, the third elastic arm is located in the first cut, and one end of the third elastic arm extends and connects to the edge of the first cut, while the other end extends along the length direction of the plug-in body.
3. A multi-faceted contact high-current terminal according to claim 2, characterized in that: The free end of the third elastic arm is bent toward the plane of the first cut so that its end is inserted into the first cut.
4. A multi-faceted contact high-current terminal according to claim 1, characterized in that: The first contact portion and the second contact portion are respectively provided with a first contact point and a second contact point that protrude relatively; the first contact point and the second contact point abut against the opposite end faces of the pin.
5. A multi-faceted contact high-current terminal according to claim 4, characterized in that: The first contact has a first flange extending toward one side of the plug-in body; the second contact has a second flange extending toward one side of the plug-in body.
6. A multi-faceted contact high-current terminal according to claim 5, characterized in that: The first flange and the second flange are symmetrically arranged arc surfaces.
7. A multi-faceted contact high-current terminal according to claim 1, characterized in that: The height difference between the plane containing the first contact portion and the second contact portion and the plane of the insertion body is greater than or equal to the thickness of the pin.
8. A multi-faceted contact high-current terminal according to claim 1, characterized in that: The plug-in body has a snap-fit structure on one or both sides along its width direction.
9. A multi-faceted contact high-current terminal according to claim 1, characterized in that, Also includes: The connecting portion extends and connects to the end of the plug-in body away from the first spring arm, and bends in the opposite direction to the first spring arm.
10. A connector, characterized in that, include: The multi-faceted contact high-current terminal according to any one of claims 1-9.