CN101997212A - Electric connector - Google Patents

Abstract

An electric connector comprises an insulating body and a plurality of terminals housed in the insulating body, wherein the insulating body is provided with side walls and a plurality of terminal slots; the terminal slots are provided with bottom walls; terminals are provided with arms hanging above the bottom walls; the bottom walls are provided with upper surfaces facing the arms; the bottom walls of the insulating body are provided with vias running through the bottom walls; and the upper surfaces of the bottom walls obliquely extend so that the bottom walls become thinner and the height of the insulating body can be reduced while providing the deformation space of the arms.

Description

electrical connector

【Technical field】

The invention relates to an electrical connector, especially an electrical connector with an insulating body having a bottom wall.

【Background technique】

For example, Taiwan New Patent Publication No. 302787 discloses a board-to-board electrical connector, wherein the receptacle connector has an insulating body and a plurality of terminals accommodated in the insulating body. The insulating body has a receiving chamber for accommodating a plug connector, a tongue plate located in the receiving chamber, and a plurality of terminal slots for accommodating terminals. The terminal has a holding portion fixed on the insulating body, a U-shaped contact portion extending from the holding portion into the receiving cavity, and a welding portion extending from the holding portion out of the insulating body. In order to miniaturize the receptacle connector, the terminal slot penetrates the insulating body up and down, so as to reduce the height of the electrical connector.

However, in this receptacle connector, since the terminal groove is not provided with a bottom wall, the overall strength of the insulating body is reduced and it is not easy to manufacture, and because the U-shaped contact portion of the terminal needs a deformation space when it is docked with the plug connector, so that Setting the bottom wall must increase the height of the insulating body, which is not conducive to the miniaturization of the connector.

Therefore, in view of the above problems, it is necessary to propose a new electrical connector to solve the above problems.

【Content of invention】

The technical problem to be solved by the present invention is to provide a miniaturized electrical connector that can enhance the strength of the insulating body.

In order to solve the above problems, the present invention adopts the following technical solution: an electrical connector, which is used for docking with a docking object and has a docking direction extending toward the docking object, the electrical connector includes: an insulating body and terminals accommodated in the insulating body , the insulating body has a side wall and a plurality of terminal slots, the terminal slot has a bottom wall, the terminal has a holding portion and a contact portion extending from the holding portion, the contact portion of the terminal has a The bottom wall has an upper surface facing the arm, the bottom wall of the insulating body has a through hole penetrating through the bottom wall, and the through hole corresponds to the end of the arm of the terminal away from the holding part , the upper surface of the bottom wall extends obliquely, and the end of the upper surface connected to the side wall is higher than the end adjacent to the through hole in the butt joint direction.

Compared with the prior art, the electrical connector of the present invention has the following beneficial effects: the upper surface of the bottom wall extends obliquely, and the end of the upper surface connected to the side wall is higher than the end adjacent to the through hole in the mating direction. One end, so as to provide more and more deformation space to meet the deformation needs of different parts of the arm of the terminal. Compared with the prior art, the miniaturization can be realized, and the elastic deformation space of the terminal can be increased at the same time.

In addition, in order to solve the above problems, the present invention can also adopt the following technical solutions: an electrical connector, comprising: an insulating body and terminals accommodated in the insulating body, the insulating body has side walls and a plurality of terminal grooves, the terminals The slot has a bottom wall, the terminal has a holding portion and a contact portion extending from the holding portion, the contact portion of the terminal has an arm suspended above the bottom wall, and the bottom wall has an upper surface facing the arm , the bottom wall of the insulating body has a through hole through the bottom wall, and the through hole corresponds to the end of the arm of the terminal away from the holding part, the upper surface of the bottom wall and the inner surface of the side wall The angle between them is an obtuse angle.

Compared with the prior art, the electrical connector of the present invention has the following beneficial effects: by making the angle between the upper surface of the bottom wall and the inner surface of the side wall an obtuse angle, it can meet the needs of deformation of different parts of the terminal arm An increasingly larger deformation space is provided, and compared with the prior art, miniaturization can be realized, and at the same time, the elastic deformation space of the terminal can be increased.

【Description of drawings】

FIG. 1 is a three-dimensional assembled view of the electrical connector of the present invention in a docking state with a mating connector.

Fig. 2 is a three-dimensional combined view of the electrical connector of the present invention and the docking connector in a non-docking state.

Fig. 3 is a three-dimensional exploded view of the electrical connector of the present invention.

FIG. 4 is a schematic cross-sectional view of the electrical connector of the present invention shown in FIG. 2 along the direction A-A.

FIG. 5 is a schematic cross-sectional view of the electrical connector of the present invention shown in FIG. 1 along the direction B-B.

【Detailed ways】

Please refer to FIG. 1 , the electrical connector 100 of the present invention is mounted on a circuit board (not shown) and is used to be mated with a mating connector 200 .

Please refer to FIG. 2 and FIG. 3 , the electrical connector 100 includes an elongated insulating body 20 , a plurality of terminals 30 accommodated in the insulating body 20 , and fixing members 40 fixed at both ends of the insulating body 20 . The insulating body 20 has a pair of side walls 21 arranged along the longitudinal direction, a pair of end walls 22 and a bottom wall 23 located at both ends of the side walls 21, and the side walls 21, the end walls 22 and the bottom wall 23 form a The docking chamber 25 accommodates the docking connector 200 . A plurality of terminal slots 26 for accommodating the terminals 30 are defined in the docking cavity 25 . The side wall 21 has an inner surface 211 facing the docking cavity 25 . A tongue plate 24 protrudes from the bottom wall 23 into the docking cavity 25 , and a receiving groove 241 is recessed from a side of the tongue plate 24 . The bottom wall 23 defines a through hole 231 passing through the bottom wall 23 , and the through hole 231 is located below the tongue plate 24 and communicates with the receiving groove 241 of the tongue plate 24 . The arrangement of the bottom wall 23 can improve the strength of the insulating body 20 . The bottom wall 23 has an upper surface 232 facing the docking cavity 25 and a bottom surface 233 opposite to the upper surface 232, wherein the upper surface 232 is inclined, and the upper surface 232 is connected to the side wall 21 One end of the upper surface 232 is higher than the end adjacent to the through hole 231 in the butt joint direction, so that the angle between the upper surface 232 and the inner surface 211 of the side wall 21 is an obtuse angle. In this embodiment, the inner surface 211 of the side wall 21 is perpendicular to the installation surface where the electrical connector 100 is installed on a circuit board (not shown).

Please refer to FIG. 3 , the terminal 30 has a holding portion 31 fixed on the side wall 21 of the insulating body 20, a contact portion 32 extending from the holding portion 31 into the docking cavity 25 and extending out of the insulating body from the holding portion 31. The welding part 33 of 20. The contact portion 32 includes a first bent portion 321 connected to the holding portion 31 , an arm portion 322 extending from the first bent portion 321 , and a second bent portion connected to an end of the arm portion away from the holding portion 31 323. The first bending portion 321 , the arm portion 322 and the second bending portion 323 form a U shape. The arm portion 322 is suspended from the bottom wall 23 , and an end of the arm portion 322 away from the holding portion 31 is located above the through hole 231 of the bottom wall 23 . The second bending portion 323 is located in the receiving groove 241 of the tongue plate 24 , and bends and extends into the mating cavity 25 to form a second contact 325 for contacting the mating connector 200 . The first bending portion 321 is provided with a first contact 324 protruding into the mating cavity 25 and opposite to the second contact 325 .

Please refer to FIG. 4 and FIG. 5 again, when the electrical connector 100 is docked with the docking connector 200, the contact portion 32 of the terminal 30 is in contact with the docking connector 200 and the end connected to the holding portion 31 is The fulcrum rotates toward the bottom wall 23 , so that the end of the arm portion 322 away from the holding portion 31 of the terminal 30 requires a larger deformation space. As mentioned above, since the upper surface 232 of the bottom wall 23 of the insulating body 20 is inclined and the end connected to the side wall 21 is higher than the end of the upper surface 232 adjacent to the through hole 231 in the butt direction, Therefore, the space for the elastic deformation of the arm portion 322 of the terminal 30 from one end close to the holding portion 31 to the other end toward the bottom wall 23 becomes larger, so as to meet the deformation requirement of the arm portion 322 . Meanwhile, the through hole 231 of the bottom wall 23 provides a larger deformation space for the end of the arm portion 322 located in the receiving groove 241 of the tongue plate 24 . After the electrical connector 100 is installed on the circuit board (not shown), the welding portion 33 of the terminal 30 is welded on the circuit board, and the bottom surface 233 of the bottom wall 23 is carried on the circuit board to assist the welding portion. The electrical connector 100 is supported to prevent the electrical connector 100 from being damaged by the impact of a relatively large external force on the welding portion 33 .

In the electrical connector 100 of the present invention, the bottom wall 23 of the insulating body 20 is provided with an inclined upper surface 232, so that the bottom wall 23 connected to the side wall 21 has a thicker thickness to enhance the overall strength of the insulating body 20, It can also provide more and more deformation space corresponding to the deformation needs of different parts of the arm portion 322 of the terminal 30. At the same time, the bottom wall 23 becomes thinner and thinner as the arm portion 322 of the terminal 30 needs more and more deformation space, so that The setting of the bottom wall 23 has little influence on the height of the insulating body 20 , which is beneficial to realize the miniaturization of the electrical connector 100 , and solves the problem that the bottom wall cannot be provided in the miniaturized electrical connectors in the prior art to provide terminal deformation space.

Claims (10)

1. An electrical connector, used for docking with a docking object and having a docking direction extending toward the docking object, the electrical connector includes: an insulating body and terminals accommodated in the insulating body, the insulating body has side walls and several A terminal groove, the terminal groove has a bottom wall, the terminal has a holding portion and a contact portion extending from the holding portion, the contact portion of the terminal has an arm portion suspended above the bottom wall, and the bottom wall has a The upper surface of the arm portion is characterized in that: the bottom wall of the insulating body has a through hole passing through the bottom wall, and the through hole corresponds to the end of the arm portion of the terminal away from the holding portion, and the bottom wall of the bottom wall The upper surface extends obliquely, and the end of the upper surface connected to the side wall is higher than the end adjacent to the through hole in the butt joint direction. 2. The electrical connector according to claim 1, wherein the thickness of the end of the bottom wall connected to the side wall is greater than the thickness of the end adjacent to the through hole. 3. The electrical connector according to claim 1 or 2, wherein the electrical connector is mounted on a circuit board, and the bottom wall of the insulating body has a bottom surface opposite to the upper surface, so The bottom surface is carried on the circuit board. 4. The electrical connector according to claim 3, wherein the insulating body has a docking cavity for accommodating a docking object, a tongue plate protrudes from the docking cavity, and the tongue plate has a receiving groove, the The end of the arm portion of the terminal away from the holding portion extends into the receiving groove of the tongue plate, and the through hole in the bottom wall of the insulating body is located under the tongue plate and communicates with the receiving groove. 5. The electrical connector according to claim 1, wherein the contact portion of the terminal further includes a first bending portion connected to the holding portion and a second bending portion connected to the end of the arm portion away from the holding portion. The bending part, the first bending part, the arm part and the second bending part form a U shape. 6 . The electrical connector according to claim 5 , wherein the through hole is disposed corresponding to the second bent portion of the terminal. 7. An electrical connector, comprising: an insulating body and terminals accommodated in the insulating body, the insulating body has side walls and a plurality of terminal slots, the terminal slots have a bottom wall, and the terminals have a holding portion and a self-holding The contact portion of the terminal is extended, the contact portion of the terminal has an arm suspended above the bottom wall, the bottom wall has an upper surface facing the arm, and it is characterized in that: the bottom wall of the insulating body has a penetrating The through hole of the bottom wall corresponds to the end of the arm portion of the terminal away from the holding portion, and the angle between the upper surface of the bottom wall and the inner surface of the side wall is an obtuse angle. 8. The electrical connector according to claim 7, wherein the electrical connector is mounted on a circuit board and has a mounting surface, and the inner surface of the side wall is perpendicular to the mounting surface . 9. The electrical connector according to claim 8, wherein the contact portion of the terminal further includes a first bending portion connected to the holding portion and a second bending portion connected to the end of the arm portion away from the holding portion. The bending part, the first bending part, the arm part and the second bending part form a U shape. 10. The electrical connector according to claim 9, wherein the through hole is disposed corresponding to the second bent portion of the terminal.

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