TWI419416B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector for positioning a positioning terminal.

Please refer to the Republic of China New Patent Application Publication No. 200908451, which discloses a prior art electrical connector technology comprising an insulative housing, a plurality of array terminals held in the insulating body, and a shielding housing covering the outside of the insulative housing. And a positioning plate mounted on the insulative housing; the insulative housing has a base portion and a tongue portion protruding from the base portion, the tongue plate portion forming a mating cavity with the shielding shell surrounding the peripheral side of the tongue plate portion for the corresponding docking connector to be inserted The terminal is inserted into the abutting portion of the insulating body from the base side, and is provided with a holding portion that is fixed on the insulating body, a contact portion that extends from the holding portion to the butting portion, and a terminal that extends from the other end of the holding portion to the outside of the insulating body. The positioning plate is inserted and fixed from the base side, the positioning plate is provided with a plurality of protrusions of a ruler shape, and the base of the insulating body is provided with a plurality of recessed portions that are matched with the protrusions, and the terminal pins are “L” shaped and It is fixed between the protrusion and the recessed portion to prevent the terminal pin from being too long to be shaken, so that the terminal can be smoothly and correctly soldered to the corresponding printed circuit of the electrical connector. On the board.

However, when the number of terminals is large, the positioning plate needs to be provided with more protrusions to correspond to the terminals. Therefore, the length dimension of the electrical connector may increase. If the spacing between the terminals is reduced to maintain the original electrical connector size, signal interference may occur between the terminals, thereby affecting the electrical performance of the electrical connector.

Therefore, it is indeed necessary to design an improved electrical connector to overcome the deficiencies of the prior art.

In view of the foregoing, it is a technical problem to be solved by the present invention to provide an electrical connector that is miniaturized and can prevent terminal sway.

In order to solve the foregoing technical problem, the electrical connector of the present invention adopts the following technical solution: an electrical connector includes: an insulating body provided with a plurality of convex portions protruding outward; and a plurality of terminals fixed on the insulating body a retaining portion that is fixed on the insulating body, a contact portion extending from one end of the retaining portion, and a pin extending from the other end of the self-holding portion to the outside of the insulating body; the positioning member is mounted on the insulating body; and the pins of the terminal are at least Two rows are arranged, two sides of the positioning member are provided with concave portions, the concave portion on one side of the positioning member receives the pins of one row of terminals, and the concave portion on the other side cooperates with the convex portion of the insulating body, and the positioning member and the insulating body Hold the pins of the other row of terminals between them.

Compared with the prior art, the electrical connector of the present invention has the following functions: the recess on one side of the positioning member receives the pin of one of the rows of terminals, and the recess on the other side and the convex portion of the insulative housing cooperate with each other By clamping the pins of the other row of terminals, the stable position of the terminals can be achieved and the miniaturization of the electrical connector can be facilitated.

100‧‧‧Electrical connector

1‧‧‧Insulating body

101‧‧‧ docking space

11‧‧‧Base 11

110‧‧‧ accommodating slot

111‧‧‧Knocking slot 111

112‧‧‧ Guided slope

113‧‧‧ convex 113

114‧‧‧ Notch

115, 431‧‧‧ pressure surface

12‧‧ ‧ tongue plate

2‧‧‧ terminals

201‧‧‧ Holding Department

203‧‧‧ pins

204‧‧‧Contacts

21‧‧‧First terminal

22‧‧‧second terminal

23‧‧‧ Third terminal

3‧‧‧Shield

301‧‧‧Upper mask

302‧‧‧Under mask

31‧‧‧ openings

32‧‧‧Tip

4‧‧‧ Positioning parts

40‧‧‧ Main body

41‧‧‧Detention Department

42‧‧‧Bumps

43, 44‧‧ ‧ recess

1 is a perspective exploded view of the electrical connector of the present invention; the second is a perspective view of the electrical connector of the present invention shown in the first figure; Figure 4 is a cross-sectional view of the electrical connector of the present invention taken along line IV-IV; Figure 5 is a cross-sectional view of the electrical connector of the present invention taken along line VV; FIG. 4 is a schematic view showing the positioning member of the electrical connector of the present invention in cooperation with the terminal; the seventh diagram is a bottom view of the electrical connector of the present invention shown in the second figure; and the eighth embodiment is the seventh embodiment of the present invention. A partial enlarged view of the electrical connector.

Referring to the first, second and third figures, the electrical connector 100 of the present invention comprises an insulating body 1 and a plurality of terminals 2 arranged on the insulating body in the X direction (ie, the first direction). a shielding member 3 on the outer side of the insulating body and a positioning member 4 mounted on the insulating body.

The insulative housing 1 has a base portion 11 and a tongue portion 12 extending from the base portion. The terminal is provided with a holding portion 201 fixed on the insulative housing, a contact portion 204 extending from one end of the holding portion, and the other end of the self-retaining portion extending from the outside of the insulating body. The pin 203 is connected to the printed circuit board corresponding to the electrical connector to electrically connect the electrical connector to the printed circuit board, and the contact portion 204 is in electrical contact with the docking connector. The base portion 11 forms an open receiving groove 110, and the positioning member 4 The receiving portion is disposed in the receiving groove, and has a fastening portion 41 at both ends of the X-direction. The two ends of the base portion are provided with a fastening groove 111 matched with the fastening portion, and the opening portion of the fastening groove has a guiding slope 112, the guiding positioning member can be smoothly loaded. The shielding member 3 includes two fastening upper and lower shielding sheets 301 and 302. The shielding member is separately arranged in two parts to meet the simple design of the electrical connector and the manufacturing is relatively simple. The opening 31 and the tab 32 bent from the opening side prevent the misconnecting of the mating connector.

Referring to the fourth and fifth figures, the terminal includes a first terminal 21, a second terminal 22, and a third terminal 23. The first and second terminals are arranged on the same side of the tongue portion 12, and the third terminal 23 The rows are located on the other side of the tongue portion, and the shielding member 3 is located around the tongue portion, so that the shielding member and the tongue portion jointly form two mutually independent docking spaces 101 for receiving corresponding mating connectors (not shown). Further, as shown in the sixth to eighth figures, the insulating body base 11 is provided with a plurality of outwardly extending plurality of convex portions 113, and a notch 114 between the adjacent two convex portions, and the positioning member 4 is insulated from the vicinity. The side of the main body is provided with a plurality of concave portions 43 respectively matching the convex portion 113 and the concave portion 114, and a plurality of convex portions 42. The concave portion 43 and the convex portion 113 of the insulating body cooperate with each other, and the pins of the first terminal are clamped. Between the recessed portion 43 and the convex portion 113, the pin of the second terminal 22 is clamped between the recess 114 of the insulative housing and the bump 42 of the positioning member, so that the first and second terminal terminals can be realized. The stable fixed position is beneficial to prevent the pins of the terminal from moving; the positioning member 4 is far away The side of the main body is provided with a plurality of recesses 44 for accommodating the third terminals 23, and the third terminals are received in the recesses to prevent the pins of the third terminal from moving; when the number of terminals of the electrical connector is large, Both sides of the positioning member The recessed portion can be used as a positioning structure to achieve stable positioning of the plurality of rows of terminals, and does not need to increase the size of the positioning member, which is advantageous for miniaturization of the electrical connector and reduction of production cost. In this embodiment, the first terminal 21 is sandwiched between the convex portion 113 and the concave portion 43, and the second terminal 22 is located in the recess between the adjacent convex portions, and is clamped to the concave portion 114 and positioned. Between the bumps 42 of the piece, the pins of the first and second terminals are staggered from each other, so that the pins are not arranged in a straight line, which can achieve miniaturization and reduce signal interference between adjacent terminals.

Referring to the first and eighth figures, the positioning member 4 has a main body portion 40 between the two fastening portions 41. In the embodiment, the convex portion and the concave portion have a "V" shape, and the positioning terminal can be ensured. At the same time, the length of the electrical connector in the X direction is reduced, which is advantageous for miniaturization; the inside of the recess and the recess has pressing surfaces 115 and 431 which abut against the terminal, and the pressing surface encloses a door frame shape, so that the corresponding second The three surfaces of the first terminal abut against the inner side of the abutting surface, so that the positioning is more stable; as shown in the fourth and fifth figures, the electrical connector has a mounting surface (not shown), and the third terminal The free end of the pin of 23 is parallel to the mounting surface, that is, using SMT (Surface Mount Technology) type soldering technology, and the free ends of the pins of the first and second terminals 21, 22 are perpendicular to the mounting surface, that is, wearing The plate-mounted welding technology, when the number of terminals of the electrical connector is large, the combination of the above two welding techniques can be advantageous in reducing the interference between the terminals and also facilitating miniaturization.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited to the above embodiments, and those skilled in the art are skilled in the art. Equivalent modifications or variations made by Shishi in accordance with the spirit of the present invention are intended to be included in the scope of the following claims.

100‧‧‧Electrical connector

1‧‧‧Insulating body

101‧‧‧ docking space

113‧‧‧ convex

12‧‧ ‧ tongue plate

203‧‧‧ pins

21‧‧‧First terminal

22‧‧‧second terminal

23‧‧‧ Third terminal

3‧‧‧Shield

4‧‧‧ Positioning parts

Claims (9)

An electrical connector comprising: an insulative housing having a base, the base being provided with a plurality of outwardly extending projections and a plurality of recesses between adjacent projections; the plurality of terminals being retained on the insulative body and a retaining portion fixed on the insulating body, a contact portion extending from one end of the retaining portion and a pin extending from the other end of the retaining portion to the printed circuit board; the positioning member is mounted on the insulating body The locating member is provided with a plurality of recesses and a plurality of bumps on a side of the insulating body. The terminal includes a first terminal, a second terminal and a third terminal, and the concave portion of the positioning member and the convex portion of the insulating body Cooperating, the pin of the first terminal is clamped between the concave portion and the convex portion, the protrusion of the positioning member is matched with the notch of the insulating body, and the pin of the second terminal is clamped to the bump and Between the notches, the pins of the third terminal are received in the recess provided by the positioning member away from the other side of the insulating body. The electrical connector of claim 1, wherein the pins of the second terminal are located between adjacent convex portions of the insulative housing. The electrical connector of claim 1, wherein the convex portion of the insulative housing is "V" shaped. The electrical connector of claim 1, wherein the inner side of the recess on the other side of the positioning member has a pressing surface that abuts against the terminal, and the pressing surface encloses a door frame shape. The electrical connector of claim 1, wherein the adjacent two convex portions of the insulating body have another concave portion, and the inner side of the other concave portion has an abutting surface abutting the terminal, the pressing The surface is framed by a door. The electrical connector of claim 1, wherein the insulative housing has a base portion and a tongue portion extending from the base portion, the first and second terminals are located on the same side of the tongue portion, and the third terminal is located at the tongue portion The other side. The electrical connector of claim 6, wherein the electrical connector has a mounting surface, the free end of the pin of the third terminal is parallel to the mounting surface, and the free end of the pin of the first and second terminals It is perpendicular to the mounting surface. The electrical connector of claim 1, wherein the electrical connector has a shielding member that covers the outer side of the insulating body, and the shielding member has an opening at both ends thereof and is bent from the opening side. Tab. The electrical connector of claim 8, wherein the shielding member comprises two shielding sheets that are engaged with each other.