CN201966400U - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector, which comprises an insulating body provided with a plurality of terminal holes and a plurality of conductive terminals accommodated in the terminal holes. Diagonals of the insulating body are respectively provided with a first positioning hole and a second positioning hole, wherein the first positioning hole has a pair of vertical surfaces extending along the diagonal direction of the insulating body and a pair of vertical surfaces connecting the pair of vertical surfaces. Curved surface, so that the electric connector has a better positioning effect and is easy to assemble and disassemble.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector installed on a circuit board for connecting chip modules.

【Background technique】

Electrical connectors are widely used to establish an electrical connection between two electronic components, such as between a chip module and a circuit board. At this time, one end of the electrical connector is installed on the circuit board, and the other end is used to connect with the chip module. electrical contact. Miniaturization and high density are the current development trend of electronic components. In order to adapt to this trend, in the process of designing electrical connectors, the number of terminals of electrical connectors used to establish electrical connections on the same area continues to increase. Therefore, in order to ensure electrical The connector is accurately positioned on the circuit board, usually with a positioning device.

A common and widely used positioning device is to provide a positioning column integrally on the electrical connector, which extends out of the lower surface of the electrical connector, and then protrudes into the through hole provided on the circuit board, so that the electrical connector can be positioned Align with the circuit board. Since the positioning post is arranged on the electrical connector, the arrangement of the positioning post relatively increases the overall height of the electrical connector, which cannot meet the requirement of miniaturization. Thus, a structure in which the positioning posts are separated from the electrical connector appears, that is, circular through holes are provided at the corresponding positions of the electrical connector and the circuit board, and the positioning posts are used to pass through the through holes respectively during assembly. Moreover, in order to make the cooperation between the positioning post and the electrical connector more elastic, an elastic piece can also be arranged in the circular through hole of the electrical connector.

Due to the tight fit between the positioning post and the electrical connector, the change of its position is determined by the radial deformation of the circular through hole of the electrical connector, so the changeable amount is small and difficult to assemble. Moreover, when the tolerance of the through hole is large, the positioning between the two will be inaccurate. In order to ensure the accuracy of positioning, the manufacturing requirements of the electrical connector are relatively high. In the case of high precision, even if the positioning between the positioning post and the through hole is accurate, it is not easy to remove the positioning post when the two are closely matched.

Therefore, it is necessary to improve the aforementioned electrical connectors to overcome the defects of the prior art.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector with better positioning and easy assembly and disassembly.

The electrical connector of the utility model can be realized through the following technical solutions: the electrical connector includes an insulating body provided with a plurality of terminal holes and a plurality of conductive terminals accommodated in the terminal holes. The insulating body is provided with a first positioning hole and a second positioning hole, wherein the first positioning hole has a pair of vertical surfaces and a pair of curved surfaces connecting the pair of vertical surfaces.

The first positioning hole and the second positioning hole are arranged on the diagonal of the insulating body, and the pair of vertical surfaces extend along the diagonal of the insulating body.

The second positioning hole is a circular hole.

A number of cantilever-shaped first elastic pieces are evenly distributed along the periphery of the second positioning hole.

A cantilever-shaped second elastic piece extends downward from the vertical upper edge of the first positioning hole.

The outer dimension of the first positioning hole along the diagonal direction of the insulating body is larger than the outer dimension of the first positioning hole along the direction perpendicular to the diagonal line.

The second positioning hole has a pair of vertical surfaces and a pair of curved surfaces connecting the pair of vertical surfaces, and the vertical surface of the second positioning hole is perpendicular to the vertical surface of the first positioning hole.

A pair of cantilever-shaped third elastic pieces extend downward from the vertical upper edge of the second positioning hole.

The outer dimension of the second positioning hole along the diagonal direction of the insulating body is smaller than the outer dimension of the second positioning hole along the direction perpendicular to the diagonal line.

The first positioning hole and the second positioning hole both penetrate the upper surface and the lower surface of the insulating body, the terminal holes penetrate the insulating body, and each conductive terminal has an upper contact portion and a lower contact portion extending out of the insulating body.

Compared with the prior art, the first positioning hole of the utility model has a pair of vertical surfaces arranged along the diagonal direction, which can provide a larger displacement of the insulating body in the diagonal direction so as to absorb the first positioning hole and the tolerance of the second positioning hole; and make the first positioning hole and the second positioning hole arranged on the diagonal easier to assemble and disassemble, and can also meet the needs of multiple plugging and unplugging.

【Description of drawings】

FIG. 1 is a three-dimensional assembled view of the electrical connector of the present invention.

Fig. 2 is a top view of the electrical connector of the present invention.

Fig. 3 is an enlarged view of the circled part in the upper left corner in Fig. 2 .

FIG. 4 is an enlarged view of the circled part at the lower right corner in FIG. 2 .

Fig. 5 is a cross-sectional view of the electrical connector of the present invention along line A-A in Fig. 2 .

Fig. 6 is a sectional view of the electrical connector of the present invention along line B-B in Fig. 2 .

Fig. 7 is a top view of the second embodiment of the electrical connector of the present invention.

【Detailed ways】

1 to 6 are the first preferred embodiment of the electrical connector 100 of the present invention. In this embodiment, the electrical connector 100 is used to electrically connect the chip module (not shown) to the circuit board (not shown). As shown in the figure), it includes an insulating body 10 and a plurality of conductive terminals 20 disposed on the insulating body 10 . The insulating body 10 is a flat plate structure, on which there are a number of terminal holes 11 arranged in a matrix and penetrating through the upper surface 101 and the lower surface 102 of the insulating body 10. The conductive terminals 20 are respectively accommodated in the terminal holes 11, and each conductive terminal 20 Each has an upper contact portion 21 and a lower contact portion 22 extending out of the insulating housing 10 . The upper contact part 21 is used for connecting the chip module, and the lower contact part 22 is used for connecting the circuit board.

Please refer to Figures 2 to 4, on the diagonal line L of the insulating body 10, there are two first positioning holes 12 and second positioning holes 13 with different shapes, and the first positioning hole 12 and the second positioning hole 13 They are respectively located on diagonally opposite corners of the insulating body 10 . The first positioning hole 12 has a pair of vertical surfaces 121 extending along the diagonal line L of the insulating body 10 and a pair of curved surfaces 122 connecting the pair of vertical surfaces 121 . The first dimension D1 of the first positioning hole 12 along the diagonal line L of the insulating body 10 is larger than the second dimension D2 of the first positioning hole 12 along the direction perpendicular to the diagonal L. The second positioning hole 13 is a circular hole, and there are a plurality of cantilever-shaped first elastic pieces 131 uniformly distributed along its periphery. A pair of cantilever-shaped second elastic pieces 123 extend downward from the upper edge of the vertical surface 121 in the first positioning hole 12 .

Please refer to Fig. 5 and Fig. 6, which are cross-sectional views of the first positioning hole 12 and the second positioning hole 13 of the insulating body 10 respectively, wherein the dotted line part is when the electrical connector 100 is installed on the circuit board, and the first positioning hole 12 and the schematic diagram of the positioning posts 30 , 40 fitted with the second positioning holes 13 respectively. Since the second positioning hole 13 is a circular hole and the first elastic piece 131 is disposed therein, the cooperation with the positioning post 40 can be more elastic. Since the first positioning hole 12 has a pair of vertical surfaces 121 arranged along the direction of the diagonal line L, compared with the circular hole, it can provide a larger displacement of the insulating body 10 along the direction of the diagonal line L so as to absorb the first positioning hole 121. The tolerance of the positioning hole 12 and the second positioning hole 13; and make the first positioning hole 12 and the second positioning hole 13 arranged on the diagonal line L easier to assemble and disassemble, and can also meet the needs of multiple plugging and unplugging.

Fig. 7 is the second embodiment of the electrical connector of the present invention, which differs from the first embodiment in the structure of the second positioning hole 13'. In this embodiment, the second positioning hole 13' also has a pair of vertical surfaces 131' and a pair of curved surfaces 132' connecting the two vertical surfaces 131', but the vertical surface 131' of the second positioning hole 13' is It is perpendicular to the vertical surface 121 of the first positioning hole 12 . A pair of cantilever-shaped third elastic pieces 133' extend downward from the upper edge of the vertical surface 131' in the second positioning hole 13'. The external dimension of the second positioning hole 13' along the diagonal line L of the insulating body 10, that is, the third dimension D3 is smaller than the external dimension of the second positioning hole 13' along the direction perpendicular to the diagonal line L, that is, the fourth dimension D4.

Since the second positioning hole 13' has a pair of vertical surfaces 131' arranged along the direction perpendicular to the diagonal line L, it, together with the first positioning hole 12, is in the direction of the diagonal line L and the direction perpendicular to the diagonal line L. Both can provide a large displacement of the insulating body 10 so as to absorb manufacturing tolerances; and make it easier to assemble and disassemble when the first positioning hole 12 and the second positioning hole 13' arranged on the diagonal line L are matched with the positioning column, It can also meet the needs of multiple plugging and unplugging. The above are the preferred implementation modes of the utility model, but the protection scope of the utility model is not limited thereto.

Claims (10)

1. An electrical connector, comprising an insulating body provided with a plurality of terminal holes and a plurality of conductive terminals accommodated in the terminal holes, characterized in that: the insulating body is provided with a first positioning hole and a second positioning hole, Wherein the first positioning hole has a pair of vertical surfaces and a pair of curved surfaces connecting the pair of vertical surfaces. 2. The electrical connector according to claim 1, wherein the first positioning hole and the second positioning hole are arranged on the diagonal of the insulating body, and the pair of vertical surfaces are along the diagonal of the insulating body extend. 3. The electrical connector as claimed in claim 2, wherein the second positioning hole is a round hole. 4. The electrical connector according to claim 3, wherein a plurality of cantilever-shaped first elastic pieces are evenly distributed along the periphery of the second positioning hole. 5 . The electrical connector as claimed in claim 2 , wherein a second elastic piece in the shape of a cantilever extends downward from the vertical upper edge of the first positioning hole. 6 . 6 . The electrical connector according to claim 2 , wherein an outer dimension of the first positioning hole along a diagonal direction of the insulating body is larger than an outer dimension of the first positioning hole along a direction perpendicular to the diagonal line. 7. The electrical connector according to claim 6, wherein the second positioning hole has a pair of vertical surfaces and a pair of curved surfaces connecting the pair of vertical surfaces, and the vertical surface of the second positioning hole The surface is perpendicular to the vertical surface of the first positioning hole. 8 . The electrical connector according to claim 7 , wherein a pair of cantilever-shaped third elastic pieces extend downward from the vertical upper edge of the second positioning hole. 9 . The electrical connector according to claim 7 , wherein an outer dimension of the second positioning hole along a diagonal direction of the insulating body is smaller than an outer dimension of the second positioning hole along a direction perpendicular to the diagonal line. 10. The electrical connector according to claim 1, wherein the first positioning hole and the second positioning hole both penetrate the upper surface and the lower surface of the insulating body, the terminal holes penetrate the insulating body, and each conductive Each terminal has an upper contact portion and a lower contact portion extending out of the insulating body.

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