A high tolerance contact pair and electrical connector

Abstract

The present application discloses a high-tolerance contact pair in the field of electrical connectors, which includes a first female terminal, a second female terminal and a male terminal, the first female terminal is provided with a first clamp, the second female terminal is provided with a second clamp, the first clamp and the second clamp are arranged relatively to each other, and the first clamp and the second clamp correspond to elastically clamp the two ends of the male terminal; the first female terminal and the second female terminal designed in the present application have elastic clamps on both female terminals, which ensures that the two female terminals have a certain toughness when docking with the male terminal, expands the compatibility of the device, and accommodates deviations; in addition, a fastener is installed on the male terminal of the device to cooperate with the mounting hole on the first or second fixing member, which can also maintain good contact between the male and female terminals on the other hand, avoiding the poor contact caused by the mismatch of the insertion direction.

Description

Technical Field

[0001] The present application relates to the technical field of electrical connectors, and in particular to a high-tolerance contact pair and an electrical connector. Background Art

[0002] Electrical connectors are widely used in a variety of electrical components. The reliability of their operation directly affects whether the host circuit can work normally, and involves the safety performance of the entire host. With the development of the times, the demand for electrical connectors, especially high-power electrical connectors, is increasing, and people have put forward higher standards for the quality and reliability of electrical connectors.

[0003] Whether the contact of an electrical connector is good or not has always been the top priority of its performance requirements. In existing designs, due to the manufacturing process of the PCB board and the manufacturing process during the welding process, the inter-board connector will cause a certain amount of deviation in the position of the contact pair between the upper and lower PCB boards. In general, the inter-board electrical connector relies on the elastic deformation of the PIN needle reed to solve these deviation problems. However, the deformation of the reed is limited and can only accommodate limited deviations. Moreover, relying on the elastic deformation of the reed to accommodate the deviation will lead to problems such as excessive contact resistance between the contact pairs, high temperature rise, small contact area, poor contact, and poor current capacity. At the same time, when this type of connector is in use, the plug-in and pull-out force is large, which causes great loss to the reed, seriously affecting the service life of the connector. Utility Model Content

[0004] The purpose of the present application is to provide a high-tolerance contact pair to solve the defects of the prior art electrical connector in which the terminal connection is expanded compatibility through PIN needle springs, but the compatibility is small and the terminals cannot make reliable contact (poor contact) under extreme deviations.

[0005] In order to solve the above technical problems, this application is implemented by adopting the following technical solutions:

[0006] On the one hand, a high-tolerance contact pair includes a first female terminal, a second female terminal and a male terminal, the first female terminal is provided with a first clamp, the second female terminal is provided with a second clamp, the first clamp and the second clamp are arranged opposite to each other, and the first clamp and the second clamp correspond to elastically clamp the two ends of the male terminal.

[0007] According to a further solution of the present application, the first clamp includes two elastic clips extending along one side of the first female terminal and arranged opposite to each other, the two elastic clips are in contact with one side of the second clamp and are provided with a guide member with an obtuse angle, and the second clamp has the same structure as the first clamp.

[0008] In a further solution, the two elastic clips are arranged obliquely.

[0009] A further solution of the present application also includes a first fixing member and a second fixing member, the first female terminal is fixedly connected to the first fixing member, the second female terminal is fixedly connected to the second fixing member, and one end of the male terminal passes through the corresponding female terminal and is movably installed with the first fixing member or the second fixing member through a movable component.

[0010] In a further solution, the movable component includes a locking body and a mounting hole, the locking body is fixed to one end of the male terminal, the mounting hole is arranged on the first fixing member or the second fixing member, and the locking body and the mounting hole are limitedly plugged in.

[0011] In a further solution, the locking body includes two fasteners fixed at intervals on the male terminal, a first guide angle is provided on the facing surfaces of the two fasteners, a second guide angle is provided on the edge of the mounting hole, and the first guide angle matches the second guide angle.

[0012] In a further embodiment, the first fixing member and the second fixing member are arranged in parallel.

[0013] On the other hand, an electrical connector includes a connector body and the high tolerance contact pair described above, wherein the high tolerance contact pair is mounted on the connector body.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The first female terminal and the second female terminal designed in the present application both have elastic clamps, which ensures that the two female terminals have a certain toughness when docking with the male terminals, expands the compatibility of the device, and accommodates deviations.

[0016] In addition, a fastener is installed on the male terminal of the device to cooperate with the mounting hole on the first or second fixing member. On the one hand, it can fix the position of the male terminal, and on the other hand, it can also maintain good contact between the male and female terminals, avoiding the poor contact caused by the mismatch of insertion direction. The fastener has mobility to improve docking compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0018] Figure 2 This is a schematic diagram of the structure of the first female terminal in Example 1 of the present application;

[0019] Figure 3 This is a schematic diagram of the structure of the second female terminal in Example 1 of the present application;

[0020] Figure 4 This is a schematic diagram of the connection structure of the second female terminal, the first female terminal and the male terminal in Example 1 of the present application;

[0021] Figure 5 This is a schematic diagram of the structure of the male terminal of Example 1 of the present application;

[0022] Figure 6 for Figure 5 The enlarged schematic diagram of point Ⅰ in the middle;

[0023] Figure 7 This is a structural schematic diagram of another viewing angle of Embodiment 1 of the present application;

[0024] Figure 8 for Figure 7 Enlarged schematic diagram of point II in the middle.

[0025] Among them, 1, the first fixing member; 2, the first female terminal; 21, the first clamping opening; 211, the guide member; 3, the male terminal; 31, the locking body; 310, the fastener; 4, the second female terminal; 41, the first clamping opening; 5, the second fixing member; 51, the mounting hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Example 1

[0027] Reference Figure 1 In the present embodiment, a high-tolerance contact pair is disclosed, which includes a first female terminal 2, a second female terminal 4 and a male terminal 3. The first female terminal 2 is provided with a first clamping opening 21, and the second female terminal 4 is provided with a second clamping opening 41. The first clamping opening 21 and the second clamping opening 41 are arranged relatively to each other. The first clamping opening 21 and the second clamping opening 41 correspond to elastically clamping the two ends of the male terminal 3. The clamps on the two female terminals are elastic and have a compatible range, which ensures reliable docking between the terminals to a certain extent. It also includes a first fixing member 1 and a second fixing member 5. The first female terminal 2 is fixedly welded to the first fixing member 1, and the second female terminal 4 is fixedly welded to the second fixing member 5. The two fixing members in the present embodiment both use PCB boards. One end of the male terminal 3 passes through the corresponding female terminal and is movably installed with the second fixing member 5 through a movable component. The movable component enables the male terminal 3 to have a certain degree of freedom of movement.

[0028] In this embodiment, refer to the attached Figures 2 to 4The first clamping opening 21 includes two elastic clips, which extend along one end of the first female terminal 2 and are arranged opposite to each other. The two elastic clips are in contact with and provided with a guide member 211 at an obtuse angle on one side close to the second clamping opening 41. The two guide members 211 form a V-shaped structure, which can effectively guide the male terminal 3. Figure 2 , 3 It can be seen that the second clamp 41 has the same structure as the first clamp 21; the two elastic clips are arranged obliquely, and the two elastic clips provide a place for the male terminal 3 to place the workpiece, which to a certain extent increases the clamping and stabilizing effect of the clamp. The design is ingenious, simple and practical.

[0029] Figure 5 In the present embodiment, the movable component includes a locking body 31 fixed to one end of the male terminal 3, and a mounting hole 51 provided on the second fixing member 5, the locking body 31 is inserted into the mounting hole 51, wherein there is a certain gap between the locking body 31 and the mounting hole 51, so as to ensure that the male terminal 3 has a certain rotation space, that is, the device meets the design concept of strong compatibility and strong reliability after the terminals are connected.

[0030] Observation attachment Figure 6 Considering the installation convenience and stability of the lock body 31 in the embodiment, the lock body 31 is designed in a split manner. The lock body 31 includes two fasteners 310 fixed to the male terminal 3 at intervals. The two fasteners 310 are provided with a first guide angle on the diverging surfaces. In addition, the edge of the mounting hole 51 is provided with a second guide angle. The first guide angle and the second guide angle match. The two guide angles here are the inclined surfaces of the two annular bodies, and the two inclined surfaces cooperate to accurately guide. In this embodiment, the first fixing member 1 and the second fixing member 5 are arranged in parallel. Example 2

[0031] This embodiment discloses an electrical connector, which includes a connector body and the high-tolerance contact pair in the above-mentioned embodiment 1, wherein the high-tolerance contact pair is mounted on the connector body.

[0032] Specific use:

[0033] Reference Figure 8 and 7 , weld the first female terminal 2 and the first fixing piece 1, weld the second female terminal 4 and the second fixing piece 5, and finally insert the locking body 31 on the male terminal 3 into the mounting hole 51 of the second fixing piece 5, so as to ensure that the male terminal 3 can rotate around the clamp of the second female terminal 4 and have a certain amount of activity. The design of the elastic first clamp 21 and the second clamp 41 itself can accommodate the contact deviation. Even if the position of the contact pair on the upper and lower PCB boards (the first and second fixing pieces) reaches the limit deviation value, the corresponding clamps on the two female terminals can be used to correct the insertion direction of the male terminal 3 to ensure sufficient contact between the male and female terminals.

[0034] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0035] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

Claims

1. A high tolerance contact pair, characterized in that: The invention comprises a first female terminal (2), a second female terminal (4) and a male terminal (3); the first female terminal (2) is provided with a first clamping opening (21); the second female terminal (4) is provided with a second clamping opening (41); the first clamping opening (21) and the second clamping opening (41) are arranged opposite to each other; the first clamping opening (21) and the second clamping opening (41) correspond to elastically clamping two ends of the male terminal (3).

2. The high tolerance contact pair according to claim 1, characterized in that: The first clamping opening (21) comprises two elastic clips extending along one side of the first female terminal (2) and arranged opposite to each other, the two elastic clips are in contact with one side of the second clamping opening (41) and are provided with a guide member (211) at an obtuse angle, and the second clamping opening (41) has the same structure as the first clamping opening (21).

3. The high tolerance contact pair according to claim 2, characterized in that: The two elastic clips are arranged obliquely.

4. The high tolerance contact pair according to claim 1, characterized in that: It also comprises a first fixing member (1) and a second fixing member (5), wherein the first female terminal (2) is fixedly connected to the first fixing member (1), and the second female terminal (4) is fixedly connected to the second fixing member (5), and one end of the male terminal (3) passes through the corresponding female terminal and is movably mounted on the first fixing member (1) or the second fixing member (5) via a movable assembly.

5. The high tolerance contact pair according to claim 4, characterized in that: The movable component comprises a locking body (31) and a mounting hole (51); the locking body (31) is fixed to one end of the male terminal (3); the mounting hole (51) is arranged on the first fixing member (1) or the second fixing member (5); and the locking body (31) and the mounting hole (51) are plugged in a limited position.

6. The high tolerance contact pair according to claim 5, characterized in that: The locking body (31) comprises two fasteners (310) fixed at intervals on the male terminal (3), a first guide angle is provided on the diverging surfaces of the two fasteners (310), a second guide angle is provided on the edge of the mounting hole (51), and the first guide angle matches the second guide angle.

7. The high tolerance contact pair according to claim 5, characterized in that: The first fixing member (1) and the second fixing member (5) are arranged in parallel.

8. An electrical connector, characterized in that: The invention comprises a connector body and the high-tolerance contact pair according to any one of claims 1 to 7, wherein the high-tolerance contact pair is mounted on the connector body.

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