CN201113048Y - electrical connector - Google Patents

Abstract

An electrical connector, used for docking with a voice plug to transmit voice signals, comprising an insulating body and a terminal accommodated in the insulating body, one end of the insulating body protrudes from a butt joint, and the butt joint extends inward along the longitudinal direction There is an insertion hole, the insertion hole includes an inner side wall, the terminal includes a movable terminal, and the movable terminal is provided with an elastic part, the elastic part protrudes in the insertion hole, and the elastic part includes a The contact point of the voice plug, wherein at least one protrusion is provided on the inner side wall, and the protrusion has a corresponding most protruding part relative to the inner side wall, and the protrusion is located between the elastic part and the docking part of the movable terminal, And the distance from the most protruding part of the protrusion to the axis of the insertion hole is greater than the distance from the contact point of the elastic part to the axis of the insertion hole. The structure is used to prevent the plastic deformation of the movable terminal caused by excessive pressing force when the voice plug is inserted, and cause poor conduction of the electrical connector.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector docked with a voice plug.

【Background technique】

With the rapid development of the electronics industry, various high-tech products are constantly emerging. Electronic products such as mobile phones and PDAs are undergoing an era of rapid development. There are various electrical connectors, especially for voice transmission. Signal electrical connectors have become an important part of various electronic products.

An electrical connector 100' as shown in Figures 1 to 3, the electrical connector 100' can be welded on a circuit board (not shown), and is used to connect with a voice plug (not shown) to transmit voice signals , which includes an insulating body 1' and a terminal (not shown) accommodated in the insulating body 1', and one end of the insulating body 1' protrudes from a butt joint 11', and the butt joint 11' extends inward along the longitudinal direction. The insertion hole 12', the insertion hole 12' is provided with an inner wall 13', the terminals include signal terminals 21', 22' and a switch terminal group (not marked), the switch terminal group includes a movable terminal 23 'and the fixed terminal 25' overlapped with the movable terminal 23', the movable terminal 23' is provided with an elastic part 232' protruding from the insertion hole 12' and is bent and extended from one end of the elastic part 232' and fixed The contact portion 233 ′ overlapped by the terminal 25 ′, when the voice plug matched with the electrical connector 100 ′ is inserted, the elastic portion 232 ′ contacts and conducts with the voice plug.

However, when the voice plug is inserted too hard, the elastic part 232' of the movable terminal 23' is pressed down too much. When the elastic deformation of the elastic part 232' exceeds its allowable elastic deformation, the movable terminal 23' The elastic part 232 ′ of the other parts may not return to the original state, thereby affecting its electrical contact with the voice plug.

In view of this, it is necessary to design a new electrical connector to solve the above problems.

【Content of utility model】

The purpose of this utility model is to overcome the above-mentioned defects, that is, to provide an electrical connector, which can prevent the plastic deformation of the movable terminal caused by excessive pressure when the voice plug is inserted too hard, and then cause poor conduction of the electrical connector. .

The purpose of this utility model is achieved through the following technical solutions: an electrical connector, which is used to connect with a voice plug to transmit voice signals, includes an insulating body and a terminal accommodated in the insulating body, and one end of the insulating body is protruded with a The butt joint portion has an insertion hole extending inward along the longitudinal direction, the insertion hole includes an inner side wall, the terminal includes a movable terminal, and the movable terminal is provided with an elastic portion, and the elastic portion protrudes from the In the insertion hole, the elastic part includes a contact point with the voice plug, wherein at least one protrusion is provided on the inner side wall, and the protrusion has a corresponding most protruding part relative to the inner side wall, and the protrusion It is located between the elastic part and the docking part of the movable terminal, and the distance from the most protruding part of the protrusion to the axis of the insertion hole is greater than the distance from the contact point of the elastic part to the axis of the insertion hole.

Compared with the prior art, when the voice plug is inserted, due to the blocking effect of the protrusion, the pressing amount of the voice plug on the elastic part of the movable terminal is appropriately reduced, preventing the voice plug from excessively pressing down on the elastic part. As a result, plastic deformation of the elastic portion is caused, thereby affecting the overlap between the movable terminal and the fixed terminal. Furthermore, the electrical connection between the voice plug and the electrical connector is improved.

【Description of drawings】

FIG. 1 is an exploded perspective view of a conventional electrical connector.

Fig. 2 is a three-dimensional assembled view of a conventional electrical connector.

FIG. 3 is a three-dimensional cross-sectional view along III-III of the electrical connector in FIG. 2 .

Fig. 4 is a three-dimensional exploded view of the electrical connector of the present invention.

Fig. 5 is a three-dimensional exploded view of the electrical connector of the present invention from another perspective.

Fig. 6 is a three-dimensional assembled view of the electrical connector of the present invention.

FIG. 7 is a perspective cross-sectional view along VII-VII of the electrical connector of FIG. 6 .

【Detailed ways】

The specific implementation of the electrical connector of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 4, the electrical connector 100 of the present invention is welded on a circuit board (not shown), and is used to connect with a voice plug (not shown), which includes a number of terminals (not shown), a holder 3, An insulating housing 4 for accommodating terminals and holders 3 .

The terminals are divided into signal terminals (not marked) and switch terminals (not marked), wherein the signal terminals include a first signal terminal 21 and a second signal terminal 22, and the switch terminals include a movable terminal 23, a first fixed terminal 24 and a The movable terminal 23 and the first fixed terminal 24 are in contact with the second fixed terminal 25 and the third fixed terminal 26 .

The first signal terminal 21 includes a first clamping portion 210, an arc-shaped first arm portion 211 bent and extended from one end of the first clamping portion 210, and a first contact portion 213 provided at the end of the first arm portion 211, wherein the first First protrusions 2100 are disposed on two sides of a holding portion 210 , and hemispherical protrusions 2130 protrude from the first contact portion 213 .

The second signal terminal 22 includes a second clamping portion 220 , a second arm portion 221 bent and extended from one end of the second clamping portion 220 , and a second contact portion 223 extending from one side of the second arm portion 221 , wherein the second Two sides of the second holding portion 220 are provided with a plurality of second protrusions 2200 .

The movable terminal 23 includes a holding portion 230 and a third welding portion 231 extending outward from one side of the holding portion 230 . The movable terminal 23 further includes an interference portion 234 extending outward from the middle of the holding portion 230 , an elastic portion 232 extending from one side of the holding portion 230 , and a third contact portion 233 disposed at the end of the elastic portion 232 .

The first fixed terminal 24 includes a first base portion 240 , a fourth welding portion 241 bent and extended from one side of the first base portion 240 , and a rod-shaped fourth contact portion 244 extended from one end of the first base portion 240 . Wherein the other end of the first base portion 240 is provided with a fourth protrusion 2400 .

The second fixed terminal 25 is connected to the movable terminal 23 , and includes a second base portion 250 and a fifth welding portion 251 bent outward from a side of the second base portion 250 .

The third fixed terminal 26 includes a third base 260 , a sixth soldering portion 261 bent outward from one side of the third base 260 , and a sixth contact bent inward from the other side of the third base 260 . Section 262. The sixth contact portion 262 is electrically connected to the fourth contact portion 244 of the first fixed terminal 24 , and sixth protrusions 2600 are provided at both ends of the third base portion 260 .

The holding part 3 is roughly elliptical, and the holding part 3 is provided with a notch (not marked), which is used for holding the voice plug after it is inserted into the electrical connector 100 of the utility model, so as to enhance the plugging force of the voice plug .

Please also refer to FIG. 5 , the insulating body 4 includes a substantially cuboid main body 40 , a docking portion 41 protruding from one end of the main body 40 , and an insertion hole 42 penetrating through the main body 40 and the docking portion 41 . The main body 40 includes a top wall 43 , a bottom wall 44 , a first side wall 45 , a second side wall 46 and a rear wall 47 . The top of the docking portion 41 is provided with a notch 410 communicating with the insertion hole 42 . An opening 450 is defined on the first side wall 45 , and a matching channel 471 is defined on one side of the rear wall 47 .

First, second, third, fourth, fifth and sixth slots 431, 432, 433, 434, 435 and 436 are respectively provided on both sides of the top wall 43, wherein the first, second, third and sixth The four slots 431, 432, 433 and 434 are sequentially arranged on the side close to the second side wall 46 from front to back, while the fifth and sixth slots 435, 436 are sequentially arranged on the side near the first side wall from front to back. 45 side.

The two sides of the bottom wall 44 are respectively provided with first, second, third, fourth, fifth and sixth receiving grooves 441, 442, 443, 444, 445 and 446. A positioning post 447 is also provided in the middle of the bottom wall 44 .

Please refer to FIG. 7 at the same time, the insertion hole 42 is provided with an inner wall 421, and the elastic portion 232 of the movable terminal 23 protrudes in the insertion hole 42, and the elastic portion 232 includes a contact point (not shown) in contact with the voice plug. marked). The inner side wall 421 is provided with at least one protrusion 422 , and the protrusion 422 has a corresponding most protruding part (not marked) relative to the inner side wall 421 , and the protrusion 422 is located between the elastic part 232 and the docking part of the movable terminal 23 41 , and the distance from the most protruding portion of the protrusion 422 to the axis of the insertion hole 42 (not shown) is greater than the distance from the contact point of the elastic portion 232 to the axis of the insertion hole 42 .

When assembling, the holder 3, the first and second clamping portions 210, 220 of the first and second signal terminals 21, 22, the retaining portion 230 of the movable terminal 23, and the first base portion 240 of the first fixed terminal 24 and the second and third bases 250 and 260 of the second and third fixed terminals 25 and 26 are successively accommodated in the corresponding first, second, third, fourth, fifth and sixth receiving grooves 441 on the insulating body 4 . The first contact portion 213 of the second signal terminal 22, the second contact portion 223 of the second signal terminal 22, the elastic portion 232 of the movable terminal 23, the fourth contact portion 244 of the first fixed terminal 24, and the sixth contact of the third fixed terminal 26 The portions 262 extend into the insertion hole 42 . At this time, the fourth contact portion 244 of the first fixed terminal 24 is in contact with the sixth contact portion 262 of the third fixed terminal 26 , and the third contact portion 233 of the movable terminal 23 is in contact with the second fixed terminal 25 .

The electrical connector 100 is mounted on the circuit board through the positioning column 447 of the bottom wall 44 , and each soldering portion 231 , 241 , 251 , 261 is soldered to the corresponding conductive path of the circuit board. Since the insertion hole 42 is provided with an inner wall 421 , the elastic portion 232 of the movable terminal 23 protrudes in the insertion hole 42 , and the elastic portion 232 includes a contact point (not shown) that contacts the voice plug. The inner side wall 421 is provided with at least one protrusion 422 , and the protrusion 422 has a most protruding part (not marked) corresponding to the inner side wall 421 , and the protrusion 422 is located between the elastic part 232 and the docking part of the movable terminal 23 41 , and the distance from the most protruding portion of the protrusion 422 to the axis of the insertion hole 42 (not shown) is greater than the distance from the contact point of the elastic portion 232 to the axis of the insertion hole 42 .

When the voice plug is inserted, the protruding platform 422 makes the pressing amount of the voice plug on the elastic part 232 of the movable terminal 23 decrease appropriately, preventing the elastic part 232 from being generated due to the excessive pressing of the voice plug on the elastic part 232. Plastic deformation, so that the third contact portion 233 at the end of the elastic portion 232 overlaps well with the second fixed terminal 25 , thereby improving the electrical connection between the voice plug and the electrical connector 100 .

The technical content and technical features of the utility model have been disclosed above, but those skilled in the art may still make various replacements and modifications based on the teachings and disclosures of the utility model without departing from the spirit of the utility model. Therefore, protection of the utility model The scope should not be limited to the content disclosed in the embodiments, but includes various replacements and modifications that do not deviate from the present utility model, all of which are covered by the claims of this patent application.

Claims (2)

1. An electrical connector, used for docking with a voice plug to transmit voice signals, comprising an insulating body and a terminal accommodated in the insulating body, one end of the insulating body is protrudingly provided with a docking portion, and the docking portion extends along the longitudinal direction There is an insertion hole extending inside, the insertion hole includes an inner side wall, the terminal includes a movable terminal, and the movable terminal is provided with an elastic part, the elastic part protrudes in the insertion hole, and the elastic part It includes a contact point that is in contact with the voice plug, and is characterized in that: the inner wall is provided with at least one protruding platform, and the protruding platform has a corresponding most protruding part relative to the inner wall, and the protruding platform is located between the elastic part of the movable terminal and the butt joint. between the parts, and the distance from the most protruding part of the protrusion to the axis of the insertion hole is greater than the distance from the contact point of the elastic part to the axis of the insertion hole. 2. The electrical connector according to claim 1, characterized in that: the electrical connector further comprises a holder for enhancing the plugging force of the voice plug.

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