CN201450188U - electrical connector - Google Patents

Abstract

The utility model discloses an electric connector, it includes insulating seat, transmission terminal group and the switch terminal group of fixing on insulating seat. The insulating base is provided with a plug hole and a gap correspondingly communicated with the plug hole. The switch terminal group is composed of a fixed terminal and an elastic terminal, wherein the fixed terminal covers the outer side of the insulating base, the fixed terminal is provided with a first connecting part and at least more than two first switch parts extending from the first connecting part, the first switch parts correspond to the gap and are arranged on the outer side of the gap, the elastic terminal is provided with a second connecting part and a second switch part extending from the second connecting part, the second switch part corresponds to the gap and is arranged on the inner side of the gap, a certain distance is reserved between the second switch part and the first switch part, and the second switch part can be elastically pressed on the first switch part. When the butt-joint connector is inserted into the electric connector, the fixed terminal and the elastic terminal of the switch terminal set of the electric connector can be stably electrically connected.

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 continue to emerge. Audio socket connectors capable of transmitting voice signals have been widely used in audio-visual audio, such as mobile phones, PDA, MP3, MP4 and notebook computers and other electronic products , its main function is to provide voice transmission between the two systems.

An audio jack connector as shown in Chinese Patent Publication No. CN2914398Y mainly includes an insulating body, several signal terminals and a switch terminal group. An insertion hole and a plurality of accommodating grooves communicated with the insertion hole are provided on the insulating body, and the plurality of signal terminals and a group of switch terminals are accommodated in the accommodating grooves. The switch terminal has a first terminal and a second terminal. The first terminal has a first terminal body and a first elastic contact arm extending from the first terminal body. The second terminal has a second terminal body and a first elastic contact arm extending from the second terminal body. out of the second elastic contact arm. When a mating plug is inserted into the insertion hole, the second elastic contact arm of the second terminal is pushed by the mating plug to electrically connect with the first elastic contact arm of the first terminal.

However, the second elastic contact arm of the second terminal of the above-mentioned audio socket connector is only in single-point contact with the first elastic contact arm of the first terminal. When the audio socket connector is docked with the voice plug, the voice plug often appears obliquely Or when the docking plug rotates in the socket hole, at this time, the voice plug will give the second elastic contact arm of the second terminal an inclined or rotating pushing force, so that the second elastic contact arm is twisted and deformed and fails to contact with the second elastic contact arm. The first elastic contact arm of the first terminal is in good contact, thus making the electrical connection between the second terminal and the first terminal unstable.

Utility model content

The purpose of this utility model is to provide an electrical connector in which the two switch terminals of the switch terminal group can stably contact in order to solve the defects and insufficiencies of the above-mentioned prior art.

In order to achieve the above purpose, the electrical connector provided by the utility model includes an insulating base, a transmission terminal group and a switch terminal group held on the insulating base. An insertion hole is provided on the insulating base, and a gap communicating with the insertion hole is provided on the top wall of the insulating base corresponding to the insertion hole. The switch terminal group includes a fixed terminal and an elastic terminal that are covered and held on the outside of the insulating seat. The fixed terminal has a first connection portion and at least two first switch portions extending from the first connection portion. The first switch portion corresponds to the notch And arranged outside the notch, the elastic terminal has a second connection part and a second switch part extending from the second connection part, the second switch part corresponds to the notch and is arranged inside the notch, and the second switch part is separated from the first switch part by a certain distance. distance, and the second switch part can elastically press against at least two or more first switch parts.

As mentioned above, since the fixed terminal has at least two first switch parts, at least two-point contact is formed between the first switch part and the second switch part. The fixed terminal and the elastic terminal of the switch terminal group can be electrically connected stably.

Description of drawings

FIG. 1 is a perspective view of an embodiment of the electrical connector of the present invention.

FIG. 2 is an exploded perspective view of the electrical connector shown in FIG. 1 .

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

FIG. 4 is a front view of the electrical connector shown in FIG. 1 after it is docked with a voice plug. In order to clearly show the contact mode between the fixed terminal and the elastic terminal, the insulating seat is partially cut away.

The reference signs of each component in the figure are explained as follows:

Electrical Connector 1 Insulation Holder 10

Base 11 Socket hole 12

Notch 13 Voice Terminal Slot 14

Positioning block 15 bump 16

Accommodating hole 17 Charging terminal slot 18

Rear cover 20 Transmission terminal group 30

Voice Terminal 301 Charging Terminal 302

Switch terminal group 40 Fixed terminal 41

First connecting part 411 Positioning hole 4111

The first clamping part 412 The first bayonet 413

The first welding foot 414 recessed part 415

Opening 416 Contact Arm 417

Contact convex part 418 first switch part 419

Elastic terminal 42 Second connection part 421

The second clamping part 422 The second bayonet port 423

The second welding foot 424 Elastic arm 425

Contact part 426 Second switch part 427

Voice plug 50

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to FIG. 1 , FIG. 2 and FIG. 4 , the electrical connector 1 of the present invention is used to connect with a voice plug 50 , and the voice plug 50 has an insulating ring (not shown in the figure). The electrical connector 1 includes an insulating base 10 , a rear cover 20 , and a transmission terminal set 30 and a switch terminal set 40 held on the insulating base 10 .

Please refer to FIG. 2 and FIG. 3 , the insulating base 10 has a one-piece base portion 11 , and an insertion hole 12 penetrating through the base portion 11 is opened backward from the front end of the base portion 11 . A notch 13 communicating with the insertion hole 12 is opened on the top of the front end of the base portion 11 . The base 11 is provided with a plurality of voice terminal grooves 14 communicating with the insertion hole 12 on both sides of the insertion hole 12, and an accommodation hole 17 is extended to one side at the front end of the base 11, and the upper and lower sides of the accommodation hole 17 are provided with There are several charging terminal slots 18 . A positioning block 15 protrudes from both ends of the upper surface of the front portion of the base 11 , and a plurality of protruding blocks 16 protrude outward from both sides of the base 11 .

The transmission terminal group 30 is composed of a plurality of voice terminals 301 and a number of charging terminals 302. The voice terminals 301 are installed in the voice terminal grooves 14 provided on both sides of the socket hole 12 of the base 11, and the charging terminals 302 are installed in the base. 11 in the charging terminal slots 18 provided on the upper and lower sides of the accommodating hole 17 .

Please refer to FIG. 1, the rear cover 20 covers the rear end of the insulating base 10 to prevent dust, water or other debris from entering the electronic product (not shown in the figure) equipped with the electrical connector 1 from the insulating base 10.

Please refer to FIG. 2 and FIG. 3 , the switch terminal set 40 has a fixed terminal 41 and a resilient terminal 42 . The fixed terminal 41 has a sheet-shaped first connecting portion 411. A positioning hole 4111 is opened at both ends of the first connecting portion 411. The two side edges of the first connecting portion 411 are respectively bent vertically to the same side to extend a first card. The fixing portion 412 has a first bayonet opening 413 opened on the first fixing portion 412 , and a first welding foot 414 extends outward from the side edge of the end of the first fixing portion 412 . The first connecting portion 411 covers the upper surface of the front portion of the insulating base 10 , the positioning block 15 is engaged in the positioning hole 4111 , and the protrusion 16 is engaged in the first bayonet opening 413 . The first connecting portion 411 is formed with an upward concave portion 415 relative to the insertion hole 12. The first connecting portion 411 defines an opening 416 at the front end of the concave portion 415, and the two side edges of the opening 416 respectively extend into the opening. The switch portion 419 includes a contact arm 417 extending from two side edges of the opening 416 and a contact protrusion 418 protruding from the end of the contact arm 417 .

The elastic terminal 42 has a sheet-shaped second connecting portion 421. The two side edges of the second connecting portion 421 are respectively bent and extended vertically to the same side to form a second fastening portion 422. A second fastening portion 422 is formed on the second fastening portion 422. In the bayonet socket 423 , a second welding leg 424 extends outward from a side edge of a terminal end of a second fastening portion 422 . A second switch part 427 is extended from the front end side edge of the second connecting part 421, and the second switch part 427 is arranged corresponding to the notch 13 and placed inside the notch 13. The elastic arm 425 extending forward and obliquely toward one side of the second fastening portion 422 and the contact portion 426 extending from the end of the elastic arm 425 are bent.

Please refer to Fig. 1, Fig. 2 and Fig. 3, when the electrical connector 1 of the present utility model is assembled, the fixed terminal 41 and the elastic terminal 42 are covered and closed on the insulating seat 10 downwards, and the first connecting part 411 and the second connecting part 421 is covered on the upper surface of the insulating seat 10, and the two first fastening parts 412 and the two second fastening parts 422 are covered on the two side surfaces of the insulating seat 10, and the first bayonet 413 and the second bayonet 423 is engaged with the protrusion 16 to be fixed on the insulating base 10 , and the first soldering pin 414 and the second soldering pin 424 both extend out of the insulating base 10 to be soldered on a circuit board (not shown in the figure). The elastic arm 425 of the elastic terminal 42 protrudes into the insertion hole 12 , and the elastic arm 425 of the elastic terminal 42 is separated from the contact protrusion 418 of the fixed terminal 41 by a distance, so that the fixed terminal 41 and the elastic terminal 42 are in a disconnected state.

3 and 4, when the voice plug 50 is inserted into the insertion hole 12 of the insulating base 10, the insulating ring of the voice plug 50 is pressed against the contact portion 426 of the elastic terminal 42, so that the contact portion 426 of the elastic terminal 42 It abuts against the contact protrusion 418 of the fixed terminal 41 , and then the fixed terminal 41 of the switch terminal set 40 is electrically connected to the elastic terminal 42 . The fixed terminal 41 and the elastic terminal 42 are covered on the outside of the insulating seat, and the contact part 426 of the elastic terminal 42 is pressed against the insulating ring of the voice plug 50 but not directly pressed against the voice plug 50, effectively reducing the number of switch terminal groups 40 Electrostatic induction with the transmission terminal group 30 of the electrical connector 1 and signal interference with the voice plug 50 .

To sum up, since the fixed terminal 41 of the electrical connector 1 of the present invention is provided with two first switch parts 419, at least two-point contact is formed between the first switch part 419 and the second switch part 427, so when the voice plug 50 When obliquely inserted or rotated in the insertion hole due to external force, the elastic arm 425 of the elastic terminal 42 is slightly deflected, but the elastic arm 425 will still be in contact with one of the contact protrusions 418 of the first switch part 419. Contact, so as to ensure the continuous electrical connection between the fixed terminal 41 and the elastic terminal 42, thereby ensuring the stable transmission of the voice signal.

Claims (7)

1. electric connector, comprise insulating base, be immobilizated in transmission terminal group and switch terminal set on the insulating base, offer spliced eye on the insulating base, switch terminal set comprises fixed terminal and flexible terminal, the second switch portion that flexible terminal has second connecting portion and extends from second connecting portion, it is characterized in that: the corresponding spliced eye that is communicated with also offers a breach on the insulating base, the fixed terminal of switch terminal set and flexible terminal are covered on the insulating base outside, the second switch portion of flexible terminal is corresponding to breach and be arranged at the breach inboard, plural at least first switch portion that fixed terminal has first connecting portion and extends from first connecting portion, first switch portion is corresponding to breach and be arranged at the breach outside, the second switch portion and first switch portion are separated by a distance, but second switch portion elasticity presses on plural at least first switch portion.

2. electric connector as claimed in claim 1 is characterized in that: described insulating base both sides outwards convex with some projections; The both side edges of first connecting portion of fixed terminal is extended one first holding division to vertical bending the in the same side respectively, offer first bayonet socket on first holding division, the terminal lateral margin of first holding division is outward extended with first welding foot, first connecting portion is covered on the upper surface of insulating base front portion, projection is sticked in first bayonet socket, be formed with a recess that goes out to fovea superior with respect to spliced eye on first connecting portion, first connecting portion is offered an opening in the front end of recess.

3. electric connector as claimed in claim 2 is characterized in that: described first switch portion is extended a contact arm respectively from the both sides of the edge of opening in opening, the contact arm end is formed with the contact protuberance, and the contact protuberance is corresponding to breach and be arranged at the breach outside.

4. electric connector as claimed in claim 2, it is characterized in that: the both side edges of described second connecting portion is extended one second holding division to vertical bending the in the same side respectively, offer second bayonet socket on second holding division, projection is sticked in second bayonet socket, the terminal lateral margin of second holding division is outward extended with second welding foot, tiltedly extends described second switch portion forward and to a square neck of second holding division from the cephalolateral margin of second connecting portion.

5. electric connector as claimed in claim 4 is characterized in that: described second switch portion comprises from the front end lateral margin of second connecting portion forward and to the oblique extended elastic arm of a square neck of second holding division and the contact site that extends from the end bending of elastic arm.

6. electric connector as claimed in claim 1 is characterized in that: described insulating base upper surface convexes with locating piece, offers location hole on first connecting portion of fixed terminal, and locating piece is sticked in the location hole.

7. electric connector as claimed in claim 1 is characterized in that: described insulating base offers the some end-speech pilot trench that are communicated with spliced eye in the both sides of spliced eye; The front end of insulating base is extended with a containing hole toward a side, and the both sides up and down of containing hole are provided with some charging ends pilot trench; Described transmission terminal group comprises some voice terminals and some charging terminals, and these voice terminals are installed in the described end-speech pilot trench, and these charging terminals are installed in the pilot trench of described charging end.

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