Double-force-arm terminal and connector

Abstract

The utility model relates to a double-force-arm terminal and a connector. The double-force-arm terminal is inserted in a terminal hole, can be elastically abutted against a rigid terminal, and comprises a first bending part, and a first elastic force arm and a second elastic force arm which extend outwards from two end parts of the first bending part, when the first bending part elastically abuts against the rigid terminal, the first elastic force arm and the second elastic force arm elastically abut against an inner wall surface, opposite to the rigid terminal, of the terminal hole. According to the double-force-arm terminal provided by the utility model, the elastic force arms are arranged at the two sides of the contact position, so that the elastic force arms at the two sides can provide large contact force at the same time when the double-force-arm terminal is abutted against the rigid terminal of the male seat, the connection resistance is reduced, the fatigue risk is reduced, and the stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a double-force-arm terminal and a connector. Background Art

[0002] A connector usually realizes current conduction or signal connection through elastic terminals arranged on a female seat and rigid terminals arranged on a male seat. In this setting, the contact stability between the female seat and the male seat mainly depends on the strength of the elastic terminals.

[0003] Generally, the elastic terminal is provided with a bent contact point and a spring arm extending from the contact point. During the process of inserting the rigid terminal into the female seat, the rigid terminal abuts against the contact point, causing the spring arm to undergo elastic deformation to generate a reverse elastic force, so as to ensure that the contact point abuts against the rigid terminal. However, the existing elastic terminals only extend a single-force arm on one side of the contact point. The positive pressure of the single-force arm on the position of the contact point is small, which will lead to a large connection resistance and unstable contact performance. In addition, the elastic terminal with a single-force arm has small elasticity and is prone to fatigue, which will cause the spring-back failure of the force arm and contact failure, and then lead to circuit breakage. Summary of the Utility Model

[0004] Based on this, one object of the utility model is to provide a double-force-arm terminal. By arranging elastic force arms on both sides of the contact point position, when abutting against the rigid terminal of the male seat, the elastic force arms on both sides can simultaneously provide a large contact force, reduce the connection resistance, reduce the fatigue risk, and improve the stability.

[0005] Another object of the utility model is to provide a connector. By arranging a double-force-arm terminal on the female seat, the stable performance and mechanical reliability of the electrical connection with the male seat are enhanced.

[0006] A double-force-arm terminal is inserted into a terminal hole and can elastically abut against a rigid terminal, and includes:

[0007] A first bending part, and a first elastic force arm and a second elastic force arm extending outward from both ends of the first bending part; when the first bending part elastically abuts against the rigid terminal, the first elastic force arm and the second elastic force arm elastically abut against an inner wall surface of the terminal hole opposite to the rigid terminal.

[0008] Further, the second elastic force arm includes a support part and a sliding part; one end of the support part is connected to the first bending part, the other end is connected to the sliding part, and the sliding part abuts against an inner wall surface of the terminal hole opposite to the rigid terminal;

[0009] The included angle between the support part and the first elastic force arm is between 90° and 150°.

[0010] Further, the sliding portion is arc-shaped, and its convex surface slidably abuts against the inner wall of the terminal hole;

[0011] Alternatively, the sliding portion is flat, and its outer end surface slidably abuts against the inner wall of the terminal hole.

[0012] Further, the sliding portion is connected to one end of the supporting portion away from the first bending portion and extends toward the first elastic force arm side.

[0013] Further, the sliding portion is provided with a second contact, and the pressure direction of the inner wall of the terminal hole on the second contact is the same as the pressure direction of the first bending portion on the rigid terminal.

[0014] Further, a fixing portion is fixedly inserted into the terminal hole; the fixing portion is extended and connected to one end of the first elastic force arm away from the first bending portion and is arranged at an angle with the first elastic force arm.

[0015] Further, a protruding clamping point is provided on the outer end surface of the fixing portion; the fixing portion is clamped in the terminal hole through the clamping point.

[0016] Further, a double-force-arm terminal further includes:

[0017] A welding portion is extended and connected to the fixing portion and is located outside the terminal hole.

[0018] A connector includes:

[0019] A female seat; the female seat includes a female end housing and a plurality of double-force-arm terminals; a plurality of terminal holes are formed in the female end housing, and the double-force-arm terminals are clamped in the terminal holes.

[0020] Further, a connector further includes: a male seat inserted into the female seat; the male seat is provided with a plurality of rigid terminals; the rigid terminals are inserted into the terminal holes, and one end surface thereof elastically abuts against the first bending portion so that the first elastic force arm and the second elastic force arm elastically abut against the inner wall of the terminal hole. The beneficial effects of the embodiments of the present application are as follows:

[0021] (1) By arranging elastic force arms on both sides of the contact position, when abutting against the rigid terminals of the male seat, the elastic force arms on both sides can simultaneously provide a large contact force, reduce the connection resistance, reduce the fatigue risk, and improve the stability;

[0022] (2) By arranging a sliding portion extending toward the first elastic force arm side at the end of the second elastic force arm, the double-force-arm terminal has a more stable structure, smaller size, and strong applicability;

[0023] (3) By providing a slot on one side wall of the terminal hole that is in interference fit with the fixing part, the female seat has a simple structure and is convenient for assembly.

[0024] For better understanding and implementation, the present utility model will be described in detail below with reference to the accompanying drawings. Description of the Drawings

[0025] Figure 1 An exploded view of a connector provided by an embodiment of the present application;

[0026] Figure 2 is Figure 1 a partial enlarged view of;

[0027] Figure 3 a cross-sectional view of the connector;

[0028] Figure 4 A schematic structural diagram of a double-force-arm terminal provided by an embodiment of the present application;

[0029] Figure 5 is a schematic diagram of the assembly of the double-force-arm terminal Figure 1 ;

[0030] Figure 6 is a schematic diagram of the assembly of the double-force-arm terminal Figure 2 。

[0031] In the figure: 100 - female seat; 10 - female terminal housing; 101 - terminal hole; 1011 - first side wall; 102 - second side wall; 102 - slot; 20 - double-force-arm terminal; 21 - first bending part; 22 - first elastic force arm; 23 - second elastic force arm; 231 - support part; 232 - sliding part; 233 - guiding part; 24 - fixing part; 241 - clamping point; 25 - welding part; 200 - male seat; 201 - rigid terminal. Detailed Embodiments

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "vertical direction", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0034] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or a connection through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] Please refer to Figures 1-6 , an embodiment of the present application provides a double-force-arm terminal, which is inserted into the terminal hole 101 of the female seat 100 and can be elastically abutted against the rigid terminal 201 of the male seat 200. It includes: a first bending portion 21, and a first elastic force arm 22 and a second elastic force arm 23 extending outward from both ends of the first bending portion 21. When the first bending portion 21 elastically abuts against the rigid terminal 201, the first elastic force arm 22 and the second elastic force arm 23 elastically abut against an inner wall of the terminal hole 101 opposite to the rigid terminal 201.

[0036] The double-force-arm terminal 20 of the embodiment of the present application generates elastic force by simultaneously undergoing elastic deformation of the first elastic force arm 22 and the second elastic force arm 23, so that there is a large contact force at the first contact point between the first bending portion 21 and the rigid terminal 201, thereby reducing the connection resistance between the two. In addition, by simultaneously undergoing elastic deformation of the first elastic force arm 22 and the second elastic force arm 23, the aging fatigue of the double-force-arm terminal 20 can be reduced, and it is easier to maintain the elasticity of the double-force-arm terminal 20, improving the contact stability between the double-force-arm terminal 20 and the rigid terminal 201.

[0037] Please refer to Figure 3, Further, in some embodiments, the second elastic force arm 23 includes a support portion 231 and a sliding portion 232. One end of the support portion 231 is connected to the first bent portion 21, and the other end is connected to the sliding portion 232. The sliding portion 232 can abut against the inner wall of the terminal hole 101 and slide along the inside of the terminal hole 101, so as to prevent the end of the second elastic force arm 23 from interfering with the inner wall of the terminal hole 101 when subjected to pressure, resulting in bending of the second elastic force arm 23 and affecting its elasticity.

[0038] It can be understood that the first elastic force arm 22 and the support portion 231 are respectively located on both sides of the first acting force direction of the rigid terminal 201 acting on the first bent portion 21, and extend in directions away from each other. Thus, when the first bent portion 21 is subjected to pressure, the second elastic force arm 23 undergoes elastic deformation, and the sliding portion 232 slides along the inner wall of the terminal hole 101, so that the ends of the first elastic force arm 22 and the support portion 231 move away from each other. During this process, the first included angle between the support portion 231 and the first elastic force arm 22 gradually increases. Preferably, the first included angle is between 90° and 150°, so as to ensure that the first elastic force arm 22 and the second elastic force arm 23 have sufficient deformation space to generate a large elastic force acting on the rigid terminal 201. More preferably, in the non-loaded state, the first included angle is between 120° and 140°.

[0039] Further, in some embodiments, the sliding portion 232 can be arc-shaped, and in the loaded state, its convex surface slides and abuts against the inner wall of the terminal hole 101. In some other embodiments, the sliding portion 232 can be flat, and in the loaded state, its end face slides and abuts against the inner wall of the terminal hole 101. In other embodiments, the sliding portion 232 can also be other shapes that facilitate sliding on the inner wall of the terminal hole 101, and are not limited thereto.

[0040] It can be understood that, in some embodiments, the sliding portion 232 can be connected to the end of the support portion 231 away from the first bent portion 21 and extend towards the end away from the first elastic force arm 22. In some other embodiments, the sliding portion 232 can also be connected to the end of the support portion 231 away from the first bent portion 21 and extend towards the end close to the first elastic force arm 22, so that the sliding portion 232 can slide on the inner wall of the terminal hole 101 to drive the first elastic force arm 22 and the second elastic force arm 23 to deform and generate elastic force, and are not limited thereto.

[0041] Preferably, in this embodiment, the sliding portion 232 is connected to one end of the supporting portion 231 away from the first bending portion 21 and extends toward the first elastic force arm 22. This setting method can reduce the size of the double-force-arm terminal 20, making it more applicable. In addition, in this setting method, during the production of the double-force-arm terminal 20, only one stamping and bending process is required to form a second included angle between the sliding portion 232 and the supporting portion 231. Specifically, the second included angle is between 15° and 80°, so as to ensure that the sliding portion 232 and the supporting portion 231 have sufficient deformation space to generate a large elastic force. Preferably, the second included angle is 20° to 40°.

[0042] At the same time, the sliding portion 232 is arranged opposite to the first bending portion 21, which can provide a large contact force to the first contact when the sliding portion 232 abuts against the inner wall surface of the terminal hole 101, reduce the connection resistance, and enhance the electrical connection stability and mechanical reliability. Preferably, the contact position between the sliding portion 232 and the inner wall of the terminal hole 101 is defined as the second contact, and the second pressure exerted by the inner wall of the terminal hole 101 on the second contact is in the same direction as the first pressure exerted by the first bending portion 21 on the rigid terminal 201.

[0043] Furthermore, a guiding portion 233 can be extended and provided at the free end of the sliding portion 232. The guiding portion 233 is inclined relative to the sliding portion 232 in the direction toward the first elastic force arm 22 to prevent the sliding portion 232 from interfering with the inner wall surface of the terminal hole 101 during the sliding process. A chamfer is cut on the side of the guiding portion 233 close to the first elastic force arm 22 to increase the deformation space of the first elastic force arm 22.

[0044] Furthermore, the double-force-arm terminal 20 further includes a fixing portion 24. The fixing portion 24 is extended and connected to one end of the first elastic force arm 22 away from the first bending portion 21 and is arranged at an angle with the first elastic force arm 22; and it is fixedly inserted into the terminal hole 101.

[0045] Furthermore, the double-force-arm terminal 20 further includes a welding portion 25. The welding portion 25 is extended and connected to the fixing portion 24 and is located outside the terminal hole 101 for welding with devices such as a PCB. It can be understood that the welding portion 25 can be linearly extended relative to the fixing portion 24 or can be bent relative to the fixing portion 24, which is set according to its use environment and is not limited herein.

[0046] Please refer to Figures 1-3 and Figure 6, embodiments of the present application further provide a connector, including a female seat 100 and a male seat 200 that are inserted into each other. The female seat 100 includes a female end housing 10 and a plurality of double-arm terminals 20; the female end housing 10 is provided with a plurality of terminal holes 101, and the double-arm terminals 20 are inserted into the terminal holes 101 through one end of the second elastic arm 23 and are clamped in the terminal holes 101. Specifically, the fixing portion 24 is clamped in the terminal hole 101, the first bending portion 21 is close to or abuts against the first side wall 1011 in the length direction of the terminal hole 101, and the fixing portion 24 and the sliding portion 232 are close to or abut against the second side wall 102 opposite to the first side wall 1011 of the terminal hole 101; the welding portion 25 is located outside the terminal hole 101 for welding with external devices.

[0047] Further, in some embodiments, a slot 102 is provided at an insertion end of the terminal hole 101, and the fixing portion 24 is inserted into the slot 102 and fixedly connected to the slot 102. Preferably, the slot 102 is provided on an inner wall of the terminal hole 101, and one or both ends of the fixing portion 24 in its width direction are provided with clamping points 241. The fixing portion 24 interferes with the inner wall of the slot 102 through the clamping points 241 so that the fixing portion 24 is clamped in the slot 102, with a simple structure and convenient assembly.

[0048] Further, the male seat 200 includes a plurality of rigid terminals 201. The rigid terminals 201 are inserted into the terminal holes 101 from an end of the terminal hole 101 away from the slot 102 and abut against the double-arm terminals 20 to achieve conduction connection. Specifically, after the rigid terminals 201 are inserted into the terminal holes 101, the first bending portion 21 is squeezed so that the arms at both ends of the first bending portion 21 abut against the second side wall 102 and undergo elastic deformation.

[0049] Compared with the prior art, the beneficial effects of the embodiments of the present application are as follows:

[0050] (1) By providing elastic arms on both sides of the contact position, when abutting against the rigid terminals of the male seat, the elastic arms on both sides can simultaneously provide a large contact force, reducing the connection resistance, reducing the fatigue risk, and improving the stability;

[0051] (2) By providing a sliding portion extending toward the first elastic arm at the end of the second elastic arm, the double-arm terminal structure is more stable, the size is smaller, and the applicability is strong;

[0052] (3) By providing a slot with an interference fit with the fixing portion on one side wall of the terminal hole, the female seat has a simple structure and is convenient for assembly.

[0053] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and the present utility model also intends to cover these modifications and variations.

Claims

1. A double-armed terminal is inserted into a terminal hole and can elastically abut against a rigid terminal. It is characterized in that Comprising: A first bent portion, and a first elastic force arm and a second elastic force arm extending outward from two ends of the first bent portion; when the first bent portion elastically abuts against the rigid terminal, the first elastic force arm and the second elastic force arm elastically abut against an inner wall surface of the terminal hole opposite to the rigid terminal.

2. A double-force-arm terminal according to claim 1, wherein: The second elastic force arm comprises a support portion and a sliding portion; one end of the support portion is connected to the first bent portion, and the other end is connected to the sliding portion, and the sliding portion abuts against an inner wall surface of the terminal hole opposite to the rigid terminal; The included angle between the support portion and the first elastic force arm is between 90° and 150°.

3. A double-force-arm terminal according to claim 2, wherein: The sliding portion is arc-shaped, and its convex surface slidably abuts against the inner wall of the terminal hole; Or, the sliding portion is flat, and its outer end face slidably abuts against the inner wall of the terminal hole.

4. A double-force-arm terminal according to claim 3, wherein: The sliding portion is connected to one end of the support portion away from the first bent portion and extends toward the first elastic force arm.

5. A double-force-arm terminal according to claim 4, wherein: The sliding portion is provided with a second contact point, and the pressure direction of the inner wall of the terminal hole on the second contact point is the same as the pressure direction of the first bent portion on the rigid terminal.

6. The double-armed terminal according to any one of claims 1-5, characterized in that, Further comprising: A fixing portion fixedly inserted into the terminal hole; the fixing portion extends and is connected to one end of the first elastic force arm away from the first bent portion and is arranged at a certain angle with the first elastic force arm.

7. A double-force-arm terminal according to claim 6, wherein: The outer end face of the fixing portion is provided with a protruding clamping point; the fixing portion is clamped in the terminal hole through the clamping point.

8. A double-force-arm terminal according to claim 6, characterized in that, Further comprising: A welding portion extending and connected to the fixing portion and located outside the terminal hole.

9. A connector, characterized in that, Comprising: A female base; The female base comprises a female terminal housing and a plurality of double-force-arm terminals according to any one of claims 1-8; a plurality of terminal holes are formed in the female terminal housing, and the double-force-arm terminals are clamped in the terminal holes.

10. A connector according to claim 9, wherein, Further comprising: A male base inserted into the female base; the male base is provided with a plurality of rigid terminals; the rigid terminals are inserted into the terminal holes, and one end face of the rigid terminals elastically abuts against the first bent portion, so that the first elastic force arm and the second elastic force arm elastically abut against the inner walls of the terminal holes.

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