CN2560127Y - Audio frequency electric connector - Google Patents

Abstract

The utility model relates to an audio frequency electric connector, in particular to an audio frequency electric connector of a three-pole earphone socket. The detect terminal of the electric connector and the playback loudspeaker terminal are designed into the same size to be applicable to the surface mount technology (SMT). The utility model is characterized in that the specification of the terminals is simplified, so as to save the cost in the process of producing and assembling, and that when the producing size is adjusted, only the smallest range of change is needed, thus being suitable for various manufacture demand mode with small quantity.

Description

The audio-frequency electric connector

(1) technical field

The relevant a kind of audio-frequency electric connector of the utility model refers in particular to function such as a kind ofly have microphone, detect, raise one's voice and is fit to the audio-frequency electric connector of surperficial gluing technology (SMT).

(2) background technology

Have the audio socket that can produce sound effect and be widely used in the audiovisual acoustic product, its major function is to provide two to be transmission of voice signal between system.In recent years, along with the appearance of various legerity type electronic products, as the development of electronic products such as mobile phone, PDA, MP3 and notebook computer, the application of audio socket electric connector on these products becomes more important.Each electronic product all has its audio socket electric connector that exclusively is suitable for to occur, and such relevant product design please refer to the 4th, 659, No. 167 patents of the U.S., No. 83215364 patent in Taiwan, No. 99039140 patent of China etc.

The design of existing socket connector is to adopt through hole weldering mode to be welded on the circuit board mostly, and this is inappropriate for all quite limited light and handy shape electronic product of inner usage space and circuit board space; This socket connector mainly includes insulation shell, it is typically provided with the main part in tool hollow circuit cylinder hole, this hollow circuit cylinder hole promptly is made as the spliced eye that inserts for audio jack, the quite flexible contact portion of several conducting terminal tools then protrude into respectively in this spliced eye with the conducting of audio jack butt, and these conducting terminals respectively are extended with engagement legs to insulation shell, to weld in the welding hole that inserts corresponding setting on the circuit board.Except that these conducting terminals, generally be equipped with the terminal that is exclusively used in ground connection, to realize eliminating the effect of electrostatic charge and electromagnetic interference.

The audio-frequency electric connector of surperficial gluing technology (SMT) type has appearred utilizing at present, but the most structure of conducting terminal of existing SMT type electric connector is comparatively complicated, need through multiple tracks punching out process, therefore need many covers or comparatively complicated mould to cooperate, make the relative raising of manufacturing cost.And, be used for the design that mode that the terminal of ground connection engages with insulating body has been continued to use existing through hole weldering type connector basically in the present SMT type audio-frequency electric connector, promptly be interlocked and combine by means of button hole on the terminal and the projection on the body, but this type of manner steadiness is relatively poor, promptly also come off because of the collision of external force, and this kind manner must increase terminal and insulating body during fabrication materials and increase structural complexity, this expenditure that will certainly raise the cost.

Simultaneously, existing audio jack is because single diameter touches through repeatedly plugging back all doing back and forth with each terminal because of the audio jack body of rod again, and terminal produces the bad phenomenon of elasticity because of excessive friction easily.

For improving the disappearance of existing electric connector for socket, the utility model then provides a kind of audio-frequency electric connector of simplifying the terminal specification, and can reach the multi-functional SMT type audio-frequency electric connector of running simultaneously.

(3) utility model content

For improving the disappearance of existing electric connector for socket, the purpose of this utility model provides a kind of terminal specification of simplifying also can realize the multi-functional SMT type audio-frequency electric connector of running simultaneously.

Audio-frequency electric connector of the present utility model comprises an insulating body and several conducting terminals; Wherein this insulating body is a cuboid, the one side is an interface, this interface is protruding with the spliced eye of the cylindrical shape of a hollow, spliced eye further is through to the rear side end of insulating body towards inner extension of insulating body thus, make the inside of rectangular housing form hollow, can insert wherein for audio jack; Several transmission terminals are arranged in the default hole on the insulating body, comprising first signal terminal, secondary signal terminal and the 3rd signal terminal; Wherein first signal terminal is that detection terminal, secondary signal terminal are the terminal of raising one's voice (Speaker) of playback and the microphone terminal (Microphone) that the 3rd signal terminal is radio reception.First signal terminal, secondary signal terminal design become same specification, adopt the mode of salient point contact.The 3rd signal terminal is the shape of falling a ㄇ member, be embedded at the insulation shell rear side end face of rectangle, one contact flat spring that inwardly concaves is respectively arranged on the and arranged on left and right sides of the 3rd signal terminal, then have in its bottom the fixing assembly of a card division of outwards giving prominence to as the 3rd signal terminal housing and insulation shell then arranged.

Therefore the utility model can contact, the position of each contact terminal positioning sorting in addition to reach the enhancement function that multiple function acts on simultaneously simultaneously with the contact site of audio jack; Design with several terminals simultaneously is simplified to two kinds of specifications, but ease of assembly also can reduce manufacturing cost like this.

For further specifying the purpose of this utility model, design feature and effect, the utility model is described in detail below with reference to accompanying drawing.

(4) description of drawings

Fig. 1 is the three-dimensional exploded view of the audio-frequency electric connector of the utility model one embodiment;

Fig. 2 is the three-dimensional combination figure of the audio-frequency electric connector of the utility model one embodiment;

Fig. 3 is another visual angle three-dimensional exploded view of the audio-frequency electric connector of the utility model one embodiment;

Fig. 4 is the audio frequency connector terminals circuit diagram of the utility model one embodiment.

(5) embodiment

See also shown in Fig. 1 to 3, the utility model audio-frequency electric connector 1 includes members such as an insulating body 10, first signal terminal 21, secondary signal terminal 22, the 3rd signal terminal 23.

Wherein this insulating body 10 is a cuboid, with wherein leading flank 11 is docking section 111, this docking section 111 is protruding with the spliced eye 50 of the cylindrical shape of a hollow, this spliced eye 50 further is through to rear side end face 16 places of insulating body 10 towards insulating body 10 inner extensions, make the inside of rectangular housing form hollow, can insert wherein for the audio jack (not shown); Spatial accommodation when on the end face 12 of insulating body 10, being provided with several grooved holes 121 and inserting, the position in this grooved hole 121 as terminal respectively with the bottom surface 15 of insulating body 10 on terminal insert portion 154 and form a passage, this passage can be inserted fully for terminal; In addition be provided with the elongated slot 122 that runs through at end face 12 near trailing flank 16 places, this elongated slot 122 is to cooperate with convex fastening part 255 on the 3rd signal terminal 23, makes the 3rd signal terminal 23 be able to be connected and fixed with insulating body 10; The right flank 13 of insulating body 10 is an even curface, and the relative position in grooved hole 121 is provided with recess 131 on itself and end face 12, and the design of this recess 131 is the demands that can meet the SMT processing procedure for the pin position after terminal is inserted; The left surface 14 of insulating body 10 roughly with right flank 13 identical setting, left surface 14 is provided with the recess 141 that cooperates with the relative position in grooved hole 121 on the end face 12 equally; On the bottom surface 15 of insulating body 10 except recess 131 is arranged, 141 terminals that extend to bottom surface 15 are inserted outside the portion 154, also be provided with positioning convex column 151, and be provided with a perforate 152 near trailing flank 16 places, the effect of this perforate 152 also is identical with the effect of the elongated slot 122 of end face 12, also be to use with card lug 252 on the 3rd signal terminal 23 to cooperate, another that is connected and fixed as the 3rd signal terminal 23 and insulating body 10 engages the place.

The utility model is designed to two kinds of specifications with several terminals, makes and assembling with convenient.Wherein, first signal terminal 21, secondary signal terminal 22 that place insulating body 10 stage casings are with a kind of specification, the structure of this type of terminal roughly is to be one " U " shape member, side at the U-shaped member is a terminal body, is provided with the sharp protuberance 213,223 that is used to fix terminal in the both sides of this body side, on terminal body, extend the pin 212 of bending, 222, then be the contact salient point 211,221 of oblique bending at another side of U-shaped member; Place 23 of the 3rd signal terminals of insulating body 10 rear ends to be another kind of specification, this the 3rd signal terminal 23 is the shape of falling a ㄇ member, the single piece type metal that is shaped as of this member forms through the punching out bending, the relative summary in position is respectively arranged to component inside bending and the quite flexible contact flat spring 234 of tool on the terminal side 233 of its both sides, the end of this contact flat spring 234 then is the contact protuberance that slightly bends up, and is provided with the convex fastening part 235 of projection on the top margin of terminal side 233; Be provided with card lug 232 on the terminal of member bottom 231,231 distal edge end then has pin 236 bottom terminal.

Please refer to shown in Figure 4ly, by terminal circuit structure of the present utility model as can be known, design of the present utility model is quite clear and definite, and the first signal terminal P1 is distal-most end (according to the engagement sequence of plug), has the function of detection signal and ground connection; Next is that 2 of secondary signal terminals P are the terminals of raising one's voice of playback; Then be the microphone terminal of radio reception with the 3rd signal terminal P3 that contacts foremost of plug; Each tool of each terminal function alone, running is clear and definite.

By above-mentioned explanation, in the structural design of the present utility model as can be known, have some technical characterstics to be stated clearly: structural design of the present utility model makes every effort to simple, first signal terminal 21 is designed to a kind of specification with secondary signal terminal 22, and the corresponding groove of inserting also forms identical specification on insulating body 10, so when the die sinking tool assembles with production, all can save considerable time and cost, and be fit to the demand of various a small amount of products of different specifications; Next is that the contact point of terminal makes the contact of button type into by the contact of in the past line, and no matter the friction area that can reduce terminal is to insert and take off when pulling out at plug, all can improve and commonly use easily tired lax disappearance of product terminal.

By above-mentioned explanation as can be known, the new structural design of the utility model utilization make the audio-frequency electric connector have more in the past like product presents better function of use, simultaneously this kind structural design have in assembling also quite rapidly convenient, the enhancement effect of minimizing assembling flow path.

The structure execution mode that the utility model disclosed only is the utility model for convenience of description, be not in order to limit scope of the present utility model, all personnel that understand this technology by the specification of the utility model have done various modifications and all should be considered as analog structure of the present utility model under the situation that does not break away from the utility model spirit, by the utility model claim is contained.

Claims (12)

1. an audio-frequency electric connector includes an insulating body, several transmission terminals; It is characterized in that:

This insulating body is a cuboid, the one side is an interface, this interface is protruding with the spliced eye of the cylindrical shape of a hollow, spliced eye further is through to the rear side end of insulating body towards inner extension of insulating body thus, make the inside of rectangular housing form hollow, insert wherein for audio jack;

Several transmission terminals are arranged in the default hole on the insulating body, and comprising first signal terminal, secondary signal terminal and the 3rd signal terminal etc., wherein, first signal terminal and secondary signal terminal are same specifications design.

2. audio-frequency electric connector as claimed in claim 1, it is characterized in that, spatial accommodation when on the end face of insulating body, being provided with several grooved holes and inserting as terminal, the position in this grooved hole respectively with the bottom surface of insulating body on the terminal portion of inserting form a passage, this passage can be inserted fully for terminal.

3. audio-frequency electric connector as claimed in claim 1 is characterized in that, is provided with the elongated slot that runs through at end face near the trailing flank place, and this elongated slot is to cooperate with convex fastening part on the 3rd signal terminal, makes the 3rd signal terminal be able to be connected and fixed with insulating body.

4. audio-frequency electric connector as claimed in claim 1, it is characterized in that, in the left and right side of insulating body is an even curface, and the relative position in grooved hole is provided with recess on itself and end face, and the design of this recess is the demand that can meet the SMT processing procedure for the pin position after terminal is inserted.

5. audio-frequency electric connector as claimed in claim 1, it is characterized in that, be provided with a perforate near the trailing flank place on the bottom surface of insulating body, this perforate is to use with card lug on the 3rd signal terminal to cooperate, and another that is connected and fixed as the 3rd signal terminal and insulating body engages the place.

6. audio-frequency electric connector as claimed in claim 1, it is characterized in that, placing first signal terminal and the secondary signal terminal in insulating body stage casing is with a kind of specification, the structure of this type of terminal roughly is to be one " U " shape member, side at the U-shaped member is a terminal body, being provided with the sharp protuberance that is used to fix terminal in the both sides of this body side, extending the pin of bending on terminal body, then is the contact salient point of oblique bending at another side of U-shaped member.

7. audio-frequency electric connector as claimed in claim 1 is characterized in that, the 3rd signal terminal that places the insulating body rear end is another kind of specification, and this secondary signal terminal is the shape of falling a ㄇ member, and the single piece type metal that is shaped as of this member forms through the punching out bending.

8. audio-frequency electric connector as claimed in claim 7 is characterized in that, the relative summary in position is respectively arranged to component inside bending and the quite flexible contact flat spring of tool on the terminal side of these member both sides, and the end of this contact flat spring is the contact protuberance that slightly bends up.

9. audio-frequency electric connector as claimed in claim 7 is characterized in that, is provided with the convex fastening part of projection on the top margin of the terminal side of this member.

10. audio-frequency electric connector as claimed in claim 7 is characterized in that, is provided with the card lug on the terminal of this member bottom, and the distal edge end in the terminal bottom then has pin.

11. audio-frequency electric connector as claimed in claim 1 is characterized in that, the secondary signal terminal is the terminal of raising one's voice of playback.

12. audio-frequency electric connector as claimed in claim 1 is characterized in that, the 3rd signal terminal then is the microphone terminal of radio reception.

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