CN201112834Y - electrical connector - Google Patents

Abstract

The utility model discloses an electrical connector used for electrically connecting printed circuit boards and external interface circuits. The electrical connector comprises an insulation body, a conductive terminal and a shielding case. A plurality of accommodating slot ways penetrating the front and back surfaces are arranged on the insulation body; the shielding case is provided with a top wall, a bottom wall and two lateral walls; the top wall is opened with a crevice, wherein, one side of the top wall of the shielding case is near the position of the crevice; pressing pieces are extended and bent on the two sides of the crevice.

Description

electrical connector

【Technical field】

The utility model relates to an electrical connector, in particular to an electrical connector arranged on an interface of an electronic product and used for transmitting signals.

【Background technique】

Electrical connectors are widely used in electronic products (such as mobile phones, handheld devices, etc.) to transmit signals. As shown in Japanese Laid-Open Patent No. 10-241793, this electrical connector combines the shielding shell and the insulating body together by means of interference fit. However, during the welding process, both the shielding shell and the insulating body are heated to produce certain stress and deformation, and then in the process of cooling, due to their different thermal expansion coefficients, conductivity and stress release speed, it is easy to cause the insulating body to relatively shield the shell. A certain displacement is generated, thereby causing a certain stress on the solder layer between the conductive terminal welding part and the circuit board. In severe cases, it may cause the solder to break and cause an open circuit between the conductive terminal and the electronic circuit of the circuit board. Although the connector disclosed in Japanese Laid-Open Patent No. 11-185862 is provided with a U-shaped baffle on the side of the shielding shell, which can be clamped in the groove at the corresponding position of the insulating shell, thereby preventing the level of the insulating body and the shielding shell Relative movement, but it still cannot effectively prevent the relative displacement of the shielding shell and the insulating body in the vertical direction.

Therefore, it is necessary to improve the electrical connector to solve the above-mentioned defects in the prior art.

【Content of utility model】

The purpose of the utility model is to provide an electrical connector which can prevent the insulating body and the shielding shell from moving relative to each other in the vertical direction, thereby ensuring good electrical connection between the welding part of the conductive terminal and the circuit board.

An electric connector includes an insulating body, a conductive terminal and a shielding shell. The insulating body is provided with a plurality of receiving grooves running through the front and rear surfaces. The shielding shell is stamped from a metal material, and a top surface is provided with a gap, which divides the top surface into two parts. On one side of the top surface, there are pressing pieces bent and extended on both sides of the gap. , the pressing piece is clamped in the holding groove provided at the corresponding position of the insulating body, so as to prevent the insulating body from moving in the vertical direction relative to the shielding case.

Compared with the prior art, the electrical connector of the utility model has the following beneficial effects: the pressing pieces on both sides of the shielding shell gap are fixed with the holding groove of the insulating body, so that in the process of welding and cooling, although the expansion coefficient of the two , conductivity and stress release speed are different, but the relative movement of the insulating body and the shielding shell in the vertical direction is effectively prevented by the pressing force of the pressing sheet in the vertical direction, thus ensuring the contact between the welding part of the conductive terminal and the shielding shell. Reliable electrical connection between circuit boards.

【Description of drawings】

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

FIG. 2 is a three-dimensional assembled view of the electrical connector shown in FIG. 1 from another angle.

FIG. 3 is an exploded perspective view of the electrical connector shown in FIG. 1 .

FIG. 4 is an exploded perspective view from another angle of the electrical connector shown in FIG. 1 .

FIG. 5 is a perspective view of the shielding case of the electrical connector shown in FIG. 1 .

FIG. 6 is a perspective view of the insulating body of the electrical connector shown in FIG. 1 .

【Detailed ways】

Please refer to FIG. 1 and FIG. 2, an electrical connector 1 is used to electrically connect a printed circuit board (not shown) of an electronic device and an external interface circuit (not shown), which mainly includes: an insulating body 10, The shielding case 20 and the conductive terminal 30, the insulating body 10 respectively includes a first main body portion 11 and a second main body portion 12, on which a plurality of receiving channels 101 are provided for accommodating the conductive terminal 30, and the shielding case 20 passes through the The pressing piece 2011 on one side is clamped on the periphery of the insulating housing 10 .

3 to 6, the insulating body 10 includes a first main body 11 and a second main body 12, the first main body 11 and the second main body 12 are rectangular shells with different lengths and mutually Connected by the connection block 13 in the length direction, the two opposite sides of the first body part 11 and the second body part 12 parallel to the connection block 13 pass through each other to form a storage space 100 including a terminal storage channel 101. In the channel 101 , a locking groove 1011 is provided for locking with the conductive terminal 30 . Wherein the connecting block 13 defines a first retaining groove 131 , and a first baffle portion 1311 is disposed in the first retaining groove 131 . Wedge-shaped grooves 1312 are symmetrically formed on both sides of the bottom of the insulating body 10 close to the first holding groove 131 . The first body part 11 and the second body part 12 respectively extend a tongue plate 14 at the end opposite to the connection end of the connection block 13, and the center of the tongue plate 14 is penetrated with a second holding groove 141, and the second holding groove 141 is provided with an inclined first The second baffle part 1410 is recessed with a wedge-shaped fastening groove 1411 at the outer end of the tongue plate 14 .

The shielding housing 20 is stamped from metal materials, and includes a top wall 201 , a bottom wall 202 , and two side walls 203 bent upward from the bottom wall 202 and connected to the top wall 201 . The side wall 203 close to the top wall 201 has a welding piece 2030 extending upward, and the side wall 203 below the welding piece 2030 is penetrated with a through hole 2031. The welding piece 2030 is welded with the printed circuit board to fix the electrical connector 1 on the printed circuit board. The two ends of the side wall 203 perpendicular to the extension direction of the welding piece 2030 are respectively bent and extended in opposite directions to have a buckling piece 2032 and a guide piece 2033, wherein the buckling piece 2032 is bent toward the side close to the insulating body 10. The guide piece 2033 is bent to the side away from the insulating body 10 by being locked with the corresponding buckling groove 1411 on the insulating body 10 , and plays a guiding role when the external interface circuit is inserted into the electrical connector 1 . The top wall 201 is provided with a crack 2010 for releasing stress and reducing deformation when the shielding shell 20 is heated or cooled. The top wall 201 is on the side where the buckle piece 2032 is located, and there are pressing pieces 2011 bent and extending toward the bottom wall 202 at both ends of the top wall 201 and the two sides near the gap 2010 respectively. The upper corresponding first holding groove 131 and the second holding groove 141 are fixed. At the position corresponding to the first holding groove 131 and the wedge-shaped groove 1312 of the insulating body 10 on the bottom wall 202 , a locking piece 2021 is bent and extended upward.

The conductive terminal 30 includes a holding part 301, a connecting part 302 bent vertically from one end of the holding part 301, a contact part 303 extending backward from the other end of the holding part 301, and a welding part bent vertically from the upper end of the connecting part 302 and extending horizontally. Section 304. The holding part 301 is fixed in the receiving channel 101 of the insulating body 10, the contact part 303 is received in the receiving space 100, and the top end of the contact part 303 protrudes from the receiving channel 101 to abut against the conductive terminal of the external interface circuit. In addition, the welding portion 304 is on the same plane as the upper surface of the insulating housing 10 to facilitate welding with the circuit board.

When assembling, insert the insulating body 10 from the front end of the shielding shell 20, and insert the pressing pieces 2011 into the first holding groove 131 and the second holding groove 141 of the insulating body 10 respectively, so as to prevent the insulating body 10 and the shielding shell 20 from relative movement in the vertical direction. The buckling pieces 2032 on both sides of the shielding housing 20 are engaged with the buckling grooves 1411 of the insulating body 10 , and the buckling piece 2021 bent upwards at the bottom of the shielding housing 20 is also correspondingly locked to the first holding position of the insulating housing 10 . The slot 131 and the wedge-shaped slots 1312 adjacent to two sides of the first holding slot 131 .

The above is only a preferred embodiment of the present utility model, and any improvement made on the premise of the concept of the present invention is within the scope of the present utility model.

Claims (8)

1. electric connector, comprise insulating body, conducting terminal and shielding casing, insulating body is provided with some conduits of accommodating that run through front and rear surfaces, and shielding casing is provided with roof, diapire and two side, it is characterized in that: a side bending of shielding casing roof is extended with compressing tablet.

2. electric connector as claimed in claim 1 is characterized in that: described insulating body comprises first main part and second main part, and this first main part is connected by contiguous block with second main part.

3. electric connector as claimed in claim 2 is characterized in that: described contiguous block is provided with first holding slot.

4. electric connector as claimed in claim 2 is characterized in that: described first main part and the second main part two ends are extended with tongue to both sides respectively, and this tongue is provided with second holding slot.

5. as claim 3 or 4 described electric connectors, it is characterized in that: described holding slot inside is provided with the baffle portion that is lozenges.

6. electric connector as claimed in claim 5 is characterized in that: described compressing tablet connects and is inserted in the holding slot.

7. electric connector as claimed in claim 1 is characterized in that: the roof of described shielding casing offers crack.

8. electric connector as claimed in claim 1 is characterized in that: the sidewall of described shielding casing is extended with bonding pad and welds mutually with circuit board.

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