CN205004480U - Earphone connector and mobile terminal - Google Patents

Abstract

The utility model is suitable for the technical field of connectors, and provides an earphone connector and a mobile terminal. The insulating housing is provided with jacks, and the terminal group includes a first detection piece and a first sound channel contact piece. The hole wall protrudes and extends to support the first support protrusion and the second support protrusion of the first detection sheet and the first sound track contact sheet respectively. The earphone connector is provided with a first support protrusion and a second support protrusion on the wall of the jack hole. When the earphone plug is inserted into the jack to perform a swing test up and down, use the first support protrusion and the second support protrusion respectively Press against the first detection sheet and the first channel contact sheet to avoid complete deformation of the first detection sheet and the first channel contact sheet and cause failure, and after the swing force is released, the first detection sheet and the second channel contact sheet The channel contacts will recover elastically naturally, thus ensuring normal contact and conduction with the earphone plug.

Description

Earphone connector and mobile terminal

technical field

The utility model belongs to the technical field of connectors, in particular to an earphone connector and a mobile terminal with the earphone connector.

Background technique

As the market has higher and higher requirements for the performance of mobile terminals (such as mobile phones, IPADs, etc.), it is necessary to require the connectors in the mobile terminal to pass various application performance tests. However, the common normally open headphone connector structure currently on the market is generally difficult to pass the swing performance test, and cannot meet the performance requirements of mobile terminals. That is, when the plug is inserted into the headphone connector and the plug is swung up and down, the plug The detection piece and the first sound channel contact piece in the earphone connector are strongly pressed, so that the contact terminal is subdued and destroyed, resulting in the failure of the function of the earphone socket.

Utility model content

The purpose of the utility model is to provide an earphone connector, aiming to solve the technical problem that the earphone connector in the prior art cannot meet the swing performance test.

The utility model is achieved in this way. An earphone connector includes an insulating shell and a terminal group connected to the insulating shell and electrically connected to the circuit board. The insulating shell is provided with a plug for inserting the earphone plug hole, the terminal set includes a first detecting piece and a first sound track contact piece that are against the earphone plug when the earphone plug is inserted into the jack, the first detecting piece and the second The first channel contact piece is arranged on the hole wall of the socket oppositely, and the insulating housing also includes a protrusion extending along the hole wall of the socket for supporting the first detecting piece and the second detecting piece respectively. The first support protrusion and the second support protrusion of the first channel contact piece are arranged opposite to each other.

Further, the first supporting protrusion and the second supporting protrusion are located at an end of the insulating housing away from the opening of the socket.

Further, the first detection piece includes a first welding leg and a first contact elastic piece which are integrally bent and formed, and the first welding leg is welded and fixed on the circuit board and electrically connected to the circuit board, so The first contact elastic piece includes a first protruding portion bent and extending along one end of the first welding leg and used to resist the earphone plug, and the first supporting protrusion is accommodated between the first protruding portion and the earphone plug. Inside the first raised space formed by the first solder fillet.

Further, the first sound channel contact piece includes a second welding leg and a second contact spring that are integrally formed, and the second welding leg is welded and fixed on the circuit board and electrically connected to the circuit board, so that The second contact elastic piece includes a second protruding portion bent and extending along one end of the second welding leg and used to bear against the earphone plug, and the second supporting protrusion is accommodated in the second protruding portion In the second raised space formed with the above-mentioned second solder fillet.

Further, the terminal group further includes a second detection piece located on the same side of the inner wall of the socket as the first detection piece, and the second detection piece and the first detection piece are on the same side of the socket. The earphone plug is inserted into the jack and disconnected to form a circuit for completing the electrical detection function. After the earphone plug is inserted into the jack, the first channel contact piece passes through the earphone plug and The second detection sheet and/or the first detection sheet are connected in contact to form another loop for completing the electrical detection function.

Further, the second detecting piece includes a third welding leg and a third contact elastic piece which are integrally bent and formed, and the third welding leg is welded and fixed on the circuit board and electrically connected to the circuit board. The third contact elastic piece is protruded with a first bump for electrical connection with the first detection piece.

Further, the terminal group also includes a microphone signal contact piece, a ground detection contact piece and a second channel contact piece for transmitting signals, the microphone signal contact piece, the ground detection contact piece and the first channel contact piece The two-channel contacts are respectively arranged on both sides of the earphone plug and are electrically connected to the earphone plug.

Further, the microphone signal contact piece includes a fourth welding leg and a fourth contact elastic piece which are integrally bent and formed, the fourth welding leg is welded and fixed on the circuit board and electrically connected to the circuit board, the The fourth contact shrapnel is protruded with a second bump for electrical connection with the earphone plug;

The ground detection contact piece includes an integrally bent fifth welding leg and a fifth contact elastic piece, the fifth welding leg is welded and fixed on the circuit board and electrically connected with the circuit board, the fifth The contact shrapnel protrudes with a third bump for electrical connection with the earphone plug;

The second sound channel contact piece includes a sixth welding leg and a sixth contact elastic piece that are integrally bent and formed. The sixth welding leg is welded and fixed on the circuit board and electrically connected to the circuit board. The first The six contact springs are protrudingly provided with a fourth protruding point for electrical connection with the earphone plug.

Further, the earphone plug includes several conductive areas, each of which is insulated from each other and electrically connected to the terminal group correspondingly.

The utility model also provides a mobile terminal, including the above-mentioned earphone connector.

Compared with the prior art, the technical effect of the utility model is: the earphone connector inserts the earphone plug into the jack by setting a first support protrusion and a second support protrusion on the hole wall of the jack. When performing the test of swinging up and down, use the first support protrusion and the second support protrusion to respectively bear against the first detection piece and the first sound track contact piece to avoid the first detection The detection piece and the first sound channel touch piece are completely deformed and fail, and after the swing force is released, the first detection piece and the first sound channel touch piece will naturally recover elastically, thereby ensuring Keep normal contact and conduction with the earphone plug.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the accompanying drawings that need to be used in the embodiments of the utility model or the description of the prior art. Obviously, the accompanying drawings described below are only the present invention. For some embodiments of the utility model, those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a perspective view of an earphone connector provided by an embodiment of the present invention in one direction;

Fig. 2 is a partial enlarged view of part II in Fig. 1;

Fig. 3 is a perspective view of the earphone connector provided by the embodiment of the present invention in another direction;

Fig. 4 is an exploded view of the earphone connector in Fig. 3;

Fig. 5 is a diagram of the connection relationship between the earphone plug and the earphone connector provided by the embodiment of the present invention;

FIG. 6 is an exploded view of the earphone plug and the earphone connector in FIG. 5 .

Explanation of reference signs:

1 headphone connector 244 first bump

10 Insulation housing 26 Microphone signal contacts

12 jacks 260 fourth solder pin

14 The first support protrusion 262 The fourth contact shrapnel

16 second support protrusion 264 second bump

20 terminal group 28 ground detection contacts

21 The first detection piece 280 The fifth welding leg

210 The first welding leg 282 The fifth contact shrapnel

212 The first contact shrapnel 284 The third bump

214 The first protruding part 29 The contact piece of the second sound channel

216 The first raised space 290 The sixth welding leg

22 The first channel contact piece 292 The sixth contact shrapnel

220 The second welding leg 294 The fourth bump

222 Second contact shrapnel 3 earphone plug

224 Conductive region of the second raised part 30

226 second raised space 32 first conductive region

24 The second detection sheet 34 The second conductive region

240 The third welding leg 36 The third conductive area

242 The third contact shrapnel 38 The fourth conductive area

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

1 to 6, the earphone connector 1 provided by the embodiment of the present invention includes an insulating housing 10 and a terminal group 20 connected to the insulating housing 10 and electrically connected to a circuit board (not shown). The insulating housing 10 is provided with a jack 12 for inserting the earphone plug 3 , and the terminal group 20 includes a first detection pin that abuts against the earphone plug 3 when the earphone plug 3 is inserted into the jack 12 . sheet 21 and the first sound channel contact sheet 22, the first detecting sheet 21 and the first sound channel contact sheet 22 are relatively arranged on the hole wall of the jack 12, and the insulating housing 10 also includes The first support protrusion 14 and the second support protrusion 16 extending along the hole wall of the socket 12 are used to support the first detection piece 21 and the first sound track contact piece 22 respectively, so The first supporting protrusion 14 and the second supporting protrusion 16 are arranged opposite to each other.

The earphone connector 1 provided by the embodiment of the utility model is provided with a first support protrusion 14 and a second support protrusion 16 on the hole wall of the jack 12, after the earphone plug 3 is inserted into the jack 12, When carrying out the test of swinging up and down, the first support protrusion 14 and the second support protrusion 16 are respectively used to resist the first detection piece 21 and the first sound channel contact piece 22 to avoid the The first detection sheet 21 and the first sound channel contact sheet 22 are completely deformed to cause failure, and after the swing force is released, the first detection sheet 21 and the first sound channel contact sheet 22 will The natural elastic recovery ensures normal contact and conduction with the earphone plug 3 .

In this embodiment, the insulating housing 10 , the first supporting protrusion 14 and the second supporting protrusion 16 are integrally formed, and are all made of plastic materials.

In this embodiment, the first sound channel contact piece 22 is a left sound channel contact piece, which is not only used to realize the function of transmitting the sound of the left channel of the earphone, but also bears against the first detection piece 21 at the same time. The same part of the earphone plug 3 forms a loop, making the entire detection system more stable and reliable.

Please refer to FIG. 1 and FIG. 2 , further, the first support protrusion 14 and the second support protrusion 16 are located at an end of the insulating housing 10 away from the opening of the insertion hole 12 . The first support protrusion 14 is opposite to the second support protrusion 16 and is located on the side of the jack 12 away from its opening, so as to ensure that the earphone plug 3 is aligned after being inserted into the jack 12. The first detection sheet 21 and the first sound track contact sheet 22 play a supporting role, preventing the first detection sheet 21 and the first sound channel contact sheet 22 from being completely deformed and unable to recover.

Please refer to FIG. 1 to FIG. 4 , further, the first detecting piece 21 includes a first welding leg 210 and a first contact elastic piece 212 integrally bent and formed, and the first welding leg 210 is welded and fixed to the circuit and electrically connected to the circuit board, the first contact elastic piece 212 includes a first protruding portion 214 bent and extended along one end of the first welding leg 210 and used to resist the earphone plug 3 , so The first supporting protrusion 14 is accommodated in a first raised space 216 formed by the first protruding portion 214 and the first welding leg 210 . The first soldering leg 210 is electrically connected to the circuit board for signal transmission, and the first contact spring 212 and the first soldering leg 210 are integrally formed so that the entire first detection The sheet 21 has a stable and firm structure, and is made by stamping, which is easy to process. The first protruding portion 214 and the earphone plug 3 are opposed to each other to realize electrical connection with the earphone plug 3 , and the earphone plug 3 is inserted into the jack 12 to press the first protruding portion 214 And make the first protruding portion 214 elastically deform, the first protruding portion 214 can not only effectively abut against the earphone plug 3 under the support of the first supporting protrusion 14, but also quickly Natural elastic recovery ensures the stability of signal transmission.

Please refer to FIG. 1 to FIG. 4 , further, the first sound channel contact piece 22 includes a second welding leg 220 and a second contact elastic piece 222 that are integrally formed, and the second welding leg 220 is welded and fixed to the circuit and electrically connected to the circuit board, the second contact elastic piece 222 includes a second protrusion 224 bent and extended along one end of the second welding leg 220 and used to bear against the earphone plug 3 , The second supporting protrusion 16 is accommodated in a second raised space 226 formed by the second protruding portion 224 and the second welding leg 220 . The second soldering leg 220 is electrically connected to the circuit board for signal transmission, and the second contact spring 222 and the second soldering leg 220 are integrally formed so that the entire first sound channel The structure of the contact piece 22 is stable and firm, and it is made by stamping, which is convenient for processing. The second protrusion 224 and the earphone plug 3 resist each other to realize electrical connection with the earphone plug 3 , and the earphone plug 3 is inserted into the jack 12 to press the second protrusion 224 And make the second protruding part 224 elastically deform, the second protruding part 224 can not only effectively abut against the earphone plug 3 under the support of the second supporting protruding part 16, but also quickly Natural elastic recovery ensures the stability of signal transmission.

Please refer to FIG. 4 to FIG. 6 , further, the terminal set 20 further includes a second detection piece 24 located on the same side of the inner wall of the insertion hole 12 as the first detection piece 21 , the second detection piece 24 The piece 24 and the first detection piece 21 are disconnected when the earphone plug 3 is inserted into the jack 12 to form a circuit for completing the electrical detection function. The first sound channel contact piece 22 After the earphone plug 3 is inserted into the jack 12, the earphone plug 3 is in contact with the second detection sheet 24 and/or the first detection sheet 21 to form another electrical connection. The loop of the detection function. The first channel contact piece 22 and the first detecting piece 21 are normally open when the earphone plug 3 is not inserted into the jack 12, and the second detecting piece 24 and the The first detection piece 21 together forms a double normally open detection structure, which is stressed when the earphone plug 3 is inserted in place, and when the earphone plug 3 is pulled out from the jack 12, the first detection piece The second detection sheet 24, the first detection sheet 21 and the first sound channel contact sheet 22 can be reset in time, with high reliability.

In this embodiment, the first sound channel contact piece 22 and the first detection piece 21 and the second detection piece 24 are separately arranged on both sides of the hole wall of the socket 12, which is beneficial to reduce the The volume of the earphone connector 1 can further realize the lightness and thickness of the earphone connector 1 , and the double normally open detection structure is not easy to fail, and the reliability is greatly improved.

In this embodiment, the second detection sheet 24 and the first detection sheet 21 are adjacently arranged at intervals. Under normal conditions, the gap between the second detection sheet 24 and the first detection sheet 21 With a certain gap and non-conduction, the second detection piece 24 and the first detection piece 21 are arranged on the same side of the hole wall of the socket 12, so that the structure of the terminal group 20 is simple and convenient. , Fast father to achieve conduction, stable electrical connection. When the earphone plug 3 is inserted, the first detecting piece 21 is squeezed by the earphone plug 3 , so that the second detecting piece 24 on the same side can conduct and realize electrical connection.

Please refer to FIG. 4 to FIG. 6 , further, the second detection piece 24 includes a third welding leg 240 and a third contact elastic piece 242 integrally bent and formed, and the third welding leg 240 is welded and fixed to the circuit The board is electrically connected with the circuit board, and the third contact elastic piece 242 protrudes from the first bump 244 for electrically connecting with the first detecting piece 21 . The third soldering leg 240 is electrically connected to the circuit board for signal transmission, and the third contact spring 242 and the third soldering leg 240 are integrally formed so that the entire second detection The sheet 24 has a stable and firm structure, and is made by stamping, which is easy to process. The first bump 244 is electrically connected to the first detecting piece 21, so that the contact is better during the electrical connection, and the stability of signal transmission is ensured.

4 to 6, further, the terminal group 20 also includes a microphone signal contact piece 26 for transmitting signals, a ground detection contact piece 28 and a second channel contact piece 29, the microphone signal contact piece 26. The ground detection contact piece 28 and the second channel contact piece 29 are respectively arranged on both sides of the earphone plug 3 and are both electrically connected to the earphone plug 3 .

Please refer to FIG. 4 to FIG. 6, specifically, the microphone signal contact piece 26 includes a fourth welding leg 260 and a fourth contact spring 262 integrally bent and formed, and the fourth welding leg 260 is welded and fixed on the circuit board. and electrically connected with the circuit board, the fourth contact elastic piece 262 protrudes with a second bump 264 for electrically connecting with the earphone plug 3 . The fourth soldering leg 260 is electrically connected to the circuit board for signal transmission, and the fourth contact spring 262 and the fourth soldering leg 260 are integrally formed so that the entire microphone signal contact 26 The structure is stable and firm, and it is made by stamping, which is easy to process. The second protruding point 264 is opposed to the earphone plug 3 to realize electrical connection with the earphone plug 3, which ensures the stability of signal transmission.

The ground detection contact piece 28 includes a fifth welding leg 280 and a fifth contact spring 282 which are integrally bent and formed, and the fifth welding leg 280 is welded and fixed on the circuit board and electrically connected to the circuit board, The fifth contact elastic piece 282 is protruded with a third bump 284 for electrically connecting with the earphone plug 3 . The fifth soldering leg 280 is electrically connected to the circuit board for signal transmission, and the fifth contact spring 282 and the fifth soldering leg 280 are integrally formed so that the entire ground detection contact The sheet 28 has a stable and firm structure, and is made by stamping, which is easy to process. The third protruding point 284 is opposed to the earphone plug 3 to realize electrical connection with the earphone plug 3, which ensures the stability of signal transmission.

The second channel contact piece 29 includes an integrally bent sixth welding leg 290 and a sixth contact elastic piece 292, the sixth welding leg 290 is welded and fixed on the circuit board and electrically connected to the circuit board , the sixth contact elastic piece 292 protrudes with a fourth bump 294 for electrically connecting with the earphone plug 3 . The second channel contact piece 29 is a right channel contact piece, the sixth soldering leg 290 is electrically connected to the circuit board for signal transmission, and the sixth contact spring 292 is connected to the sixth soldering leg 290 is made by integral molding, so that the structure of the entire second sound channel contact piece 29 is stable and firm, and it is made by stamping, which is convenient for processing. The fourth protruding point 294 is opposed to the earphone plug 3 to realize electrical connection with the earphone plug 3, which ensures the stability of signal transmission.

The microphone signal contact piece 26, the ground detection contact piece 28, the second channel contact piece 29, and the second detection piece 24 are provided with a gold-plated layer to ensure that they are electrically connected to the earphone plug 3. The good connection makes the audio signal transmission more stable.

Please refer to FIG. 5 and FIG. 6 , further, the earphone plug 3 includes several conductive areas 30 , each of which is insulated from each other and electrically connected to the terminal group 20 correspondingly. In this embodiment, the earphone plug 3 adopts a four-core structure, and four conductive regions 30 are arranged on it, which are respectively the first conductive region 32, the second conductive region 34, the third conductive region 36 and the second conductive region connected in sequence. Four conductive areas 38, the second channel contact piece 29 is electrically connected to the first conductive area 32, the ground detection contact piece 28 and the second detection piece 24 are electrically connected to the second conductive area 34 , the microphone signal contact piece 26 is electrically connected to the third conductive region 36, the first detection piece 21 and the first channel contact piece 22 are electrically connected to the fourth conductive region 38, and the first A detection sheet 21 forms a loop between the first sound channel contact sheets 22 to realize the detection of the earphone plug 3 .

Please refer to FIG. 1 to FIG. 6 , the mobile terminal provided by the present invention includes the earphone connector 1 provided by the above-mentioned embodiments. The earphone connector 1 has the same structure and function as the earphone connector 1 provided in the above-mentioned embodiments, which will not be repeated here. The earphone connector 1 is small in size, high in strength, and not easy to be damaged, which meets the requirements for the earphone connector 1 in the process of developing thinner and lighter mobile terminals.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. An earphone connector, comprising an insulating housing and a terminal group connected to the insulating housing and electrically connected to a circuit board, the insulating housing is provided with a jack for inserting an earphone plug, characterized in that, The terminal group includes a first detection piece and a first sound track contact piece that are against the headphone plug when the headphone plug is inserted into the jack, and the first detection piece and the first sound channel The contact piece is arranged on the hole wall of the socket oppositely, and the insulating housing also includes a protrusion extending along the hole wall of the socket for supporting the first detection piece and the first sound sensor respectively. The first support protrusion and the second support protrusion of the track contact piece are arranged opposite to each other. 2 . The earphone connector according to claim 1 , wherein the first supporting protrusion and the second supporting protrusion are located at an end of the insulating housing away from the jack opening. 3 . 3. The earphone connector according to claim 1, wherein the first detection piece includes a first welding leg and a first contact elastic piece which are integrally bent and formed, and the first welding leg is welded and fixed to the and electrically connected to the circuit board, the first contact elastic piece includes a first protruding portion bent and extended along one end of the first welding leg and used to resist the earphone plug, the first contact A support protrusion is accommodated in a first raised space formed by the first protrusion and the first welding foot. 4. The earphone connector according to claim 3, characterized in that, the first sound channel contact piece includes a second welding leg and a second contact elastic piece integrally formed, and the second welding leg is welded and fixed to the said second welding leg. and electrically connected to the circuit board, the second contact elastic sheet includes a second protruding portion bent and extended along one end of the second welding leg and used to bear against the earphone plug, the The second supporting protrusion is accommodated in a second raised space formed by the second protrusion and the second welding leg. 5. The earphone connector according to claim 1, wherein the terminal group further comprises a second detecting piece located on the same side of the inner wall of the socket as the first detecting piece, the second detecting piece The detection sheet and the first detection sheet are disconnected when the earphone plug is inserted into the jack to form a loop for completing the electrical detection function, and the first sound channel contact sheet is connected to the After the earphone plug is inserted into the jack, the earphone plug is in contact with the second detection sheet and/or the first detection sheet to form another circuit for completing the electrical detection function. 6. The earphone connector according to claim 5, wherein the second detecting piece includes a third welding leg and a third contact elastic piece which are integrally bent and formed, and the third welding leg is welded and fixed to the and electrically connected to the circuit board, and the third contact elastic piece protrudes with a first bump for electrical connection with the first detection piece. 7. The earphone connector according to claim 1, wherein the terminal group further comprises a microphone signal contact piece, a ground detection contact piece and a second channel contact piece for transmitting signals, and the microphone signal The contact piece, the ground detection contact piece and the second audio channel contact piece are respectively arranged on two sides of the earphone plug and are all electrically connected to the earphone plug. 8. The earphone connector according to claim 7, wherein the microphone signal contact piece includes a fourth welding leg and a fourth contact elastic piece integrally bent, and the fourth welding leg is welded and fixed to the The circuit board is electrically connected to the circuit board, and the fourth contact elastic piece is protruded with a second bump for electrical connection with the earphone plug; The ground detection contact piece includes an integrally bent fifth welding leg and a fifth contact elastic piece, the fifth welding leg is welded and fixed on the circuit board and electrically connected with the circuit board, the fifth The contact shrapnel protrudes with a third bump for electrical connection with the earphone plug; The second sound channel contact piece includes a sixth welding leg and a sixth contact elastic piece that are integrally bent and formed. The sixth welding leg is welded and fixed on the circuit board and electrically connected to the circuit board. The first The six contact springs are protrudingly provided with a fourth protruding point for electrical connection with the earphone plug. 9. The earphone connector according to any one of claims 1 to 8, characterized in that, the earphone plug includes several conductive areas, each of which is insulated from each other and electrically connected to the terminal group. connect. 10. A mobile terminal, characterized by comprising the earphone connector according to any one of claims 1-9.