CN201364991Y - Plate-to-plate connector, socket terminal and plug terminal thereof - Google Patents

Abstract

The utility model aims at the shortcomings of the prior art that the insertion force is too large, the processing is complicated and the cost is high. A board-to-board connector provided by an embodiment of the present invention includes a plug and a socket. The plug includes a plug terminal and a plug body provided with the plug terminal. The socket includes a socket terminal and a socket body provided with the socket terminal. The socket terminal has a first bending portion, and the first bending portion is bent to extend a first contact arm, and the plug terminal has a second bending portion, and the second bending portion is bent to form a second contact arm. An inclined arm is connected between the first bending part and the first contact arm, one end of the first contact arm has a first buckle part, and one end of the second contact arm has a second buckle that can cooperate with the first buckle part. As for the buckle part, a region for locking the second bending part and the second buckle part is formed between the inclined arm and the first buckle part. The utility model solves the problem of excessive insertion and extraction force in the prior art through the above structure, and the processing technology is relatively simple.

Description

Board-to-board connectors and their socket terminals and plug terminals

technical field

The utility model relates to the field of electric connectors, in particular to a board-to-board connector and socket terminals and plug terminals thereof.

Background technique

Since light, thin and short are the unstoppable development trend of electronic connector products, no matter notebook computers or mobile phones, they are getting thinner and smaller, so the connectors used are also forced to be smaller and smaller. The spacing between the needles is getting tighter and tighter. Taking desktop computers as an example, the pitch (pitch) of the pins is only 2.54mm and 1.27mm. On the notebook computer connector, the pitch of the pins has reached 0.5mm, and the pitch of the mobile phone is even smaller, with a pitch of only 0.4mm. , needle height 0.8mm. The board-to-board connector used by the most popular Apple mobile phone (I-Phone) has a spacing of 0.4mm and a height of only 0.8mm. This kind of connector can fly far away with a breath, which shows that it is small and thin. At the same time, an average of two board-to-board connectors is required for a mobile phone, which requires high quality and significant commercial value.

A prior art terminal structure is shown in FIG. 1 , 01 is a plug terminal, and 02 is a socket terminal. In this patent, the connector terminal is formed by bending and deforming the material of the terminal, that is, the thickness direction of the metal plate. At the position where the side edges in the width direction of the plug terminal are spaced apart, a part of the concave surface 011 (including 011A, 011B) recessed from the board surface is formed, and the socket terminal 02 is in the corresponding area of the concave surface of the plug terminal 01 The convex part 021 (including 021A, 021B) is formed, and the above-mentioned concave part 011 forms a certain interference range with the convex part 021. The concave part 011 of the plug terminal 01 is formed by dotting and thinning, and the convex part 021A of the socket terminal 02 is processed by applying protrusion to the board surface. Due to the difficulty of dot pressing and protrusion processing on the micro-miniature terminal, the product yield rate is low. High, affecting production efficiency. Moreover, after the plug terminal and the socket terminal are mated, the interference contact area on the inner side (011A and 021A) is not smooth enough, and a large pull-out force needs to be applied, so that the large pull-out force is likely to cause structural damage to the terminal when pulling out. The service life of the entire connector is shortened.

Utility model content

The utility model aims at the problems of excessive insertion and extraction force and complicated processing technology in the prior art.

An embodiment of the utility model provides a board-to-board connector, including a plug and a socket, the plug includes a plug terminal and a plug body, the socket includes a socket terminal and a socket body, and the socket terminal has a first bend The first bending part bends and extends the first contact arm, the plug terminal has a second bending part, the second bending part is bent to form the second contact arm, the first bending part and the first An inclined arm is connected between one contact arm, one end of the first contact arm has a first buckle part, one end of the second contact arm has a second buckle part that can cooperate with the first buckle part, and the inclined A region for locking the second bending portion and the second buckle portion is formed between the arm and the first buckle portion.

The embodiment of the utility model also provides a board-to-board connector socket terminal, which has a first bending part, and the first bending part bends and extends a first contact arm, and the first bending part is in contact with the first contact arm. An inclined arm is connected between the arms, and one end of the first contact arm has a first buckle portion.

The embodiment of the utility model also provides a plug terminal of a board-to-board connector with a second bending portion, the second bending portion is bent to form a second contact arm, and one end of the second contact arm has a second buckle department.

The utility model solves the problem of excessive insertion and extraction force in the prior art through the above structure, and the processing technology is relatively simple.

Description of drawings

Figure 1 is a schematic diagram of connector terminals in the prior art

Figure 2 is an overall schematic diagram of the connector of the utility model embodiment

Fig. 3 is an exploded schematic diagram of the plug and socket of the utility model embodiment

Figure 4 is an exploded schematic view of the plug terminal and the socket terminal of the embodiment of the present invention

Figure 5 is a sectional view of the connector of the utility model embodiment

Fig. 6 is a sectional view of the cooperation between the plug terminal and the socket terminal of the utility model

Figure 7 is a detailed schematic diagram of part A in Figure 6

Figure 8 is a detailed schematic diagram of part B in Figure 6

Detailed ways

Preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Figure 2 is a three-dimensional schematic diagram of a board-to-board connector according to an embodiment of the utility model, and Figure 3 is an exploded schematic diagram of a plug terminal and a socket terminal according to an embodiment of the utility model, the board-to-board connector has a plug 10 and a socket 20, and the plug 10 It includes a plug terminal 1 and a plug body 3 provided with several plug terminals 1 , and the socket 20 includes a socket terminal 2 and a socket body 4 provided with several socket terminals 2 . The plug terminal 1 and the socket terminal 2 can be respectively held in the plug 10 and the socket 20 through integral molding or slots.

Fig. 4 is an exploded schematic diagram of the plug terminal 1 and the socket terminal 2 according to the embodiment of the present invention. An inclined arm 23 is connected between a bent portion 22 and the first contact arm 21. One end of the first contact arm 21 has a first buckle portion 21A. The plug terminal 1 has a second bent portion 12, the second The bent portion 12 is bent to form the second contact arm 11 , and one end of the second contact arm 11 has a second buckle portion 11A. If the size requires, a first connecting arm 24 is connected between the inclined arm 23 and the first contact arm 21 , and a second connecting arm 13 is connected between the second bending portion 12 and the second contact arm 11 .

Fig. 5 is a cross-sectional view of the connector of the embodiment of the utility model, through which the terminal fit of the embodiment of the utility model can be seen relatively easily. The second bending portion 12 is in conflict with the inclined arm 23, and the first buckle portion 21A is in conflict with the second buckle portion 11A. The area where the bent portion 12 is locked with the second buckle portion 11A, so that the socket terminal 2 clamps the plug terminal 1 .

Figure 6 is a cross-sectional view of the utility model connecting the plug terminal and the socket terminal. Referring to Figure 6 and Figure 4 at the same time, the angle formed by the first buckle part 21A and the horizontal is slope angle X, and the angle formed by the inclined arm 23 and the horizontal is the slope angle Y, the angle formed between the second buckle portion 11A and the horizontal is the slope angle Z, and the locking area formed between the inclined arm 23 and the first buckle portion 21A is more effective. The preferred slope angle X, Both Y and Z are less than or equal to 75° and greater than or equal to 45°. In order to generate a better clamping force between the plug terminal and the socket terminal, it is further preferred that the slope angle Y is greater than or equal to the slope angle X, and the further preferred slope angle Y is greater than or equal to the slope angle Z, and the slope angle Z is greater than or equal to Slope angle X.

Fig. 7 is a detailed schematic view of part A in Fig. 6, wherein the dotted line part is when the inclined arm 23 is in contact with the second bending part 12 but not fully fitted; Fig. 8 is a detailed schematic view of part B in Fig. 6, wherein the dotted line part is the first When the buckle portion 21A is in contact with the second buckle portion 11A but not fully fitted. When the plug terminal 1 and the receptacle terminal 2 respectively move to the solid line state, the inclined arm 23 produces a bending deformation, and this deformation is transmitted to the first buckle part 21A to generate a relatively large elastic bending deformation, and the first buckle part 21A and the second buckle part 21A The contact points of the two buckle parts 11A move down along the direction of the arrow, so that the pressure of 21A on 11A increases, and the total resultant force direction makes the plug terminal 1 face to the lower side of the first connecting arm 21 . This increases the clamping force on the plug terminal 1, provides sufficient holding force between the plug terminal 1 and the socket terminal 2, and the insertion and extraction force between the plug terminal and the socket terminal will not be too large, and the whole structure is relatively technical. It is also easier to process and manufacture, and the cost is relatively reduced.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (8)

1. A board-to-board connector, comprising a plug and a socket, said plug comprising a plug terminal and a plug body provided with a plug terminal, said socket comprising a socket terminal and a socket body provided with a socket terminal, characterized in that said socket The terminal has a first bending portion, and the first bending portion is bent to extend a first contact arm. The plug terminal has a second bending portion, and the second bending portion is bent to form a second contact arm. The first An inclined arm is connected between the bending portion and the first contact arm, one end of the first contact arm has a first buckle portion, and one end of the second contact arm has a second buckle that can cooperate with the first buckle portion part, and a region for locking the second bending part and the second buckle part is formed between the inclined arm and the first buckle part. 2. The board-to-board connector according to claim 1, wherein the slope angle of the inclined arm is less than or equal to 75° and greater than or equal to 45°, and the slope angle of the first buckle part is less than or equal to 75° and greater than or equal to 45° , the slope angle of the second buckle portion is less than or equal to 75° and greater than or equal to 45°. 3. The board-to-board connector according to claim 1 or 2, characterized in that the slope angle of the inclined arm is greater than or equal to the slope angle of the first buckle portion. 4. The board-to-board connector according to claim 3, characterized in that the slope angle of the inclined arm is greater than or equal to the slope angle of the second buckle part, and the slope angle of the second buckle part is greater than or equal to the first buckle slope angle of the department. 5. A board-to-board connector socket terminal, characterized in that it has a first bending portion, the first bending portion bends and extends out of the first contact arm, and the gap between the first bending portion and the first contact arm An inclined arm is connected, and one end of the first contact arm has a first buckle portion. 6. The board-to-board connector socket terminal according to claim 5, characterized in that the slope angle of the inclined arm is less than or equal to 75° and greater than or equal to 45°, and the slope angle of the first buckle part is less than or equal to 75° Greater than or equal to 45°. 7. A board-to-board connector plug terminal, characterized in that it has a second bending portion, the second bending portion is bent to form a second contact arm, and one end of the second contact arm has a second buckle portion. 8 . The board-to-board connector plug terminal according to claim 7 , wherein the slope angle of the second buckle portion is less than or equal to 75° and greater than or equal to 45°.

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