Noise-proof earphone socket

Abstract

The utility model belongs to the technical field of connectors, and particularly relates to an anti-noise earphone socket, which comprises a base and an earphone jack, a functional terminal assembly and a detection switch terminal assembly are sequentially distributed inside the base from outside to inside along a channel direction, and the detection switch terminal assembly comprises a first detection switch terminal and a second detection switch terminal; the first detection switch terminal comprises a first mounting plate, a first abdicating groove, a first elastic sheet, a first contact convex part and a first welding pin; the second detection switch terminal comprises a second mounting plate, a second abdicating groove, a second elastic sheet, a second contact convex part and a second welding pin; the control system comprises a controller and a pressure sensor arranged on the side face, facing the first elastic piece, of the second elastic piece. The pressure sensor is used for detecting the pressure on the second elastic sheet, generating a pressure detection signal and feeding back the pressure detection signal to the controller; the controller is used for controlling on and off of the functional terminal assembly according to the pressure detection signal, and the anti-noise effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and in particular relates to an anti-noise earphone socket. Background Art

[0002] Headphone jacks are mainly used in stereoscopic mobile phones, CD players, cordless phones, MP3 players, digital laptops, DVDs, digital cameras, and many audio and video electronic products are equipped with headphone jacks to provide audio output interfaces. The headphone plugs that match them are stepped cylindrical. Each step, as a different electrode, needs to form electrical contact with different conductive sheets in the headphone jack to achieve the purpose of connecting the left channel, right channel, microphone, and grounding.

[0003] In the use of some existing headphone sockets, when the headphone is inserted into the headphone socket, these headphone sockets are simply connected to the headphone plug. Although the detection switch terminal sends a signal that the headphone is inserted during use, the various terminals in the headphone socket are not in a stable state of contact with the corresponding electrodes in the headphone plug at this time, and the full insertion detection function is not satisfied, and some noise will be generated at this time; when the headphone plug is unplugged, the detection switch terminal has not detected the unplugging operation, and the various terminals in the headphone socket are disconnected from the corresponding electrodes in the headphone plug. The detection switch terminal cannot achieve the function of early detection, and at the same time, some noise will be generated. Usually, a delay circuit is added to the line to achieve the effect of eliminating the noise, but the structure of these circuits is relatively complicated.

[0004] In addition, when the headphone plug is not inserted into the existing headphone socket, the detection switch terminal is connected to the ground terminal and the microphone terminal, so that when the headphone plug is not fully inserted into the headphone socket, certain noise will be generated. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an anti-noise headphone socket to solve the problem of noise when the existing headphone socket is inserted or unplugged.

[0006] The technical solution adopted by the utility model is as follows: an anti-noise earphone socket, comprising a base, the base is arranged in a cavity, and an earphone jack is arranged at one end of the base for inserting an earphone terminal;

[0007] A functional terminal assembly, wherein the functional terminal assembly is arranged in the base, and the earphone terminal is inserted into the base and electrically connected to the functional terminal assembly;

[0008] A detection switch terminal assembly, wherein the base forms a channel inward from the headphone jack, the functional terminal assembly and the detection switch terminal assembly are sequentially distributed inside the base from the outside to the inside along the direction of the channel, and the detection switch terminal assembly includes a first detection switch terminal and a second detection switch terminal;

[0009] A first mounting groove and a second mounting groove are formed on a side wall of the base away from the headphone jack, the first mounting groove and the second mounting groove are both connected to the cavity of the base, and the first mounting groove and the second mounting groove are sequentially arranged on the side wall of the base from the inside to the outside;

[0010] The first detection switch terminal includes a first mounting plate, a first clearance groove, a first spring sheet, a first contact protrusion and a first welding foot;

[0011] The first mounting plate is clamped in the first mounting groove, the first clearance groove is provided on the first mounting plate, one end of the first elastic sheet is connected to the inner side wall of the first clearance groove, the first contact protrusion is provided on the side of the first elastic sheet facing the earphone terminal, and the first welding foot is provided on the top of the first mounting plate and passes through the top of the base upward and protrudes from the base;

[0012] The second detection switch terminal includes a second mounting plate, a second clearance groove, a second spring sheet, a second contact protrusion and a second welding foot;

[0013] The second mounting plate is clamped in the second mounting groove, the second clearance groove is provided on the second mounting plate, one end of the second elastic sheet is connected to the inner side wall of the second clearance groove, the second contact protrusion is provided on the side of the second elastic sheet facing the first elastic sheet, and the second welding foot is provided on the top of the second mounting plate and passes through the top of the base upward and protrudes from the base;

[0014] A control system, the control system comprising a controller and a pressure sensor;

[0015] The functional terminal assembly, the first detection switch terminal, the second detection switch terminal and the pressure sensor are all electrically connected to the controller;

[0016] The pressure sensor is arranged on the side of the second elastic sheet facing the first elastic sheet and is located on one side of the second contact protrusion. When the first elastic sheet is pressed by the earphone terminal and abuts against the second contact protrusion, the first elastic sheet can abut against the pressure sensor.

[0017] The pressure sensor is used to detect the pressure on the side of the second elastic sheet facing the first elastic sheet, generate a pressure detection signal, and feed back the pressure detection signal to the controller;

[0018] The controller is used to control the opening and closing of the functional terminal assembly according to the pressure detection signal.

[0019] Further, the functional terminal assembly includes a microphone terminal, a ground terminal, a right channel terminal and a left channel terminal;

[0020] The microphone terminal is clamped on the outer side wall of the base, and a clearance opening is provided at the edge of the earphone jack of the base to allow the contact end of the microphone terminal to extend into the earphone jack of the base;

[0021] The base forms a channel inward from the headphone jack, the ground terminal, the right channel terminal and the left channel terminal are sequentially distributed inside the base from the outside to the inside along the direction of the channel, the microphone terminal is located outside the ground terminal, and when the headphone terminal is inserted into the channel, the headphone terminal is sequentially electrically connected to the microphone terminal, the ground terminal, the right channel terminal, the left channel terminal, the first detection switch terminal and the second detection switch terminal;

[0022] The microphone terminal, the ground terminal, the right channel terminal and the left channel terminal are all electrically connected to the controller;

[0023] The controller is used to control the opening and closing of the microphone terminal, the ground terminal, the right channel terminal and the left channel terminal according to the pressure detection signal.

[0024] Further, the microphone terminal includes a bending plate, a card interface, a microphone spring, a microphone contact protrusion and a microphone welding foot;

[0025] The two sides of the bending plate are provided with card interfaces, and the two side surfaces of the base are provided with card convexities corresponding to the card interfaces, and the card convexities can be buckled with the card interfaces, so that the microphone terminal is fixedly installed on the base, and the microphone welding foot is connected to one end of the bending plate and is located above the card convexity;

[0026] The microphone spring is arranged in the middle of the bending plate and between the two card interfaces. The microphone contact protrusion is arranged on the microphone spring. The microphone contact protrusion extends into the headphone jack through the clearance opening. The microphone contact protrusion can abut against the outer surface of the headphone terminal.

[0027] Furthermore, the base is provided with a ground mounting groove, a right channel mounting groove and a left channel mounting groove corresponding to the ground terminal, the right channel terminal and the left channel terminal, respectively, for clamping and mounting the ground terminal, the right channel terminal and the left channel terminal, respectively.

[0028] Furthermore, the base is made of high-temperature nylon material.

[0029] Furthermore, a mounting positioning column is arranged on the top of the base, and two mounting positioning columns are arranged for mounting the base on a circuit board.

[0030] Beneficial effects of the utility model:

[0031] 1. When the headphone terminal is inserted, the first spring sheet is squeezed by the headphone terminal, and the first spring sheet can abut against the second contact protrusion and the pressure sensor. At this time, the pressure sensor detects the pressure on the second spring sheet, generates a pressure detection signal, and feeds back the pressure detection signal to the controller. The controller controls the functional terminal assembly to open according to the pressure detection signal and starts sound transmission, thereby avoiding the occurrence of noise when the headphone plug is inserted into the base. When the headphone terminal is pulled out of the base, the headphone terminal first disengages from the first contact protrusion on the first spring sheet, so that the first spring sheet disengages from the second contact protrusion on the second spring sheet and the pressure sensor. At this time, the pressure detection signal is interrupted, and the controller controls the functional terminal assembly to close. When the headphone terminal is pulled out of the base, noise is avoided when the headphone plug is pulled out of the base; when the headphone socket is not in use, the first detection switch terminal and the second detection switch terminal inside the base are in a normally disconnected state to avoid noise during subsequent insertion. Only when the headphone terminal is fully inserted into the base and the first contact protrusion is contacted to squeeze the first spring sheet and electrically connected to the first detection switch terminal, the first spring sheet is electrically connected to the second contact protrusion on the second spring sheet and triggers the pressure sensor, generates a pressure detection signal, and forms a trigger signal, and then controls the function terminal assembly to open through the controller, which further avoids noise and makes the anti-noise effect better, thereby improving the comfort of headphone use.

[0032] 2. When the headphone terminal is inserted into the base, the headphone terminal can first contact the microphone terminal, the ground terminal, the right channel terminal and the left channel terminal, and then contact the first detection switch terminal and the second detection switch terminal. Conversely, when the headphone plug is pulled out from the base, the headphone plug can first be disconnected from the second detection switch terminal and the first detection switch terminal, and then disconnected from the left channel terminal, the right channel terminal, the ground terminal and the microphone terminal, so that a timing device is formed under the combined action of the base, the first detection switch terminal, the second detection switch terminal, the right channel terminal, the left channel terminal, the microphone terminal and the ground terminal, thereby avoiding the occurrence of noise when the headphone plug is inserted into the base, thereby affecting the comfort of using the headphone. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model (first viewing angle, the state when the earphone terminal is not inserted into the base);

[0034] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model (second viewing angle, the headphone terminal is not shown in the figure);

[0035] Figure 3This is a schematic diagram of the structure of the functional terminal assembly and the detection switch terminal assembly of the utility model;

[0036] Figure 4 This is a schematic diagram of the explosion structure of the detection switch terminal assembly of the utility model;

[0037] The attached drawings are marked as follows:

[0038] Base 1, headphone jack 11, first mounting slot 12, second mounting slot 13, yielding port 14, ground mounting slot 15, right channel mounting slot 16, left channel mounting slot 17, card convex 18, headphone terminal 2, functional terminal assembly 3, microphone terminal 31, bending plate 311, card interface 312, microphone spring 313, microphone contact convex portion 314, microphone welding foot 315, ground terminal 32, right channel terminal 33, left channel terminal 34, detection switch terminal assembly 4, first detection switch terminal 41, first mounting plate 411, first yielding slot 412, first spring 413, first contact convex portion 414, first welding foot 415, second detection switch terminal 42, second mounting plate 421, second yielding slot 422, second spring 423, second contact convex portion 424, second welding foot 425, pressure sensor 5, installation positioning column 6. DETAILED DESCRIPTION

[0039] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0040] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Embodiment 1:

[0043] like Figure 1 to Figure 4 As shown, an anti-noise headphone socket comprises a base 1, the base 1 is arranged in a cavity, and an headphone jack 11 is arranged at one end of the base 1 for inserting a headphone terminal 2;

[0044] A functional terminal assembly 3, wherein the functional terminal assembly 3 is arranged in the base 1, and the earphone terminal 2 is inserted into the base 1 and electrically connected to the functional terminal assembly 3;

[0045] The detection switch terminal assembly 4, the base 1 forms a channel inward from the headphone jack 11, the functional terminal assembly 3 and the detection switch terminal assembly 4 are sequentially distributed inside the base 1 from the outside to the inside along the direction of the channel, and the detection switch terminal assembly 4 includes a first detection switch terminal 41 and a second detection switch terminal 42;

[0046] A first mounting groove 12 and a second mounting groove 13 are formed on the side wall of the base 1 away from the headphone jack 11. The first mounting groove 12 and the second mounting groove 13 are both connected to the cavity of the base 1. The first mounting groove 12 and the second mounting groove 13 are sequentially arranged on the side wall of the base 1 from the inside to the outside;

[0047] The first detection switch terminal 41 includes a first mounting plate 411, a first clearance groove 412, a first elastic sheet 413, a first contact protrusion 414 and a first welding foot 415;

[0048] The first mounting plate 411 is clamped in the first mounting groove 12, the first clearance groove 412 is provided on the first mounting plate 411, one end of the first elastic sheet 413 is connected to the inner side wall of the first clearance groove 412, the first contact protrusion 414 is provided on the side of the first elastic sheet 413 facing the headphone terminal 2, and can abut against the outer side wall of the headphone terminal 2, the first welding foot 415 is provided on the top of the first mounting plate 411, and passes through the top of the base 1 upward and protrudes from the base 1;

[0049] The second detection switch terminal 42 includes a second mounting plate 421, a second clearance groove 422, a second elastic piece 423, a second contact protrusion 424 and a second welding foot 425;

[0050] The second mounting plate 421 is clamped in the second mounting groove 13, the second clearance groove 422 is provided on the second mounting plate 421 and is arranged opposite to the first clearance groove 412, one end of the second elastic piece 423 is connected to the inner side wall of the second clearance groove 422, the second contact protrusion 424 is arranged on the side of the second elastic piece 423 facing the first elastic piece 413, the first elastic piece 413 can abut against the second contact protrusion 424 when the first elastic piece 413 is squeezed by the headphone terminal 2, the first elastic piece 413 is electrically connected to the first detection switch terminal 41 and the second detection switch terminal 42, the second welding foot 425 is arranged on the top of the second mounting plate 421, and extends out of the base 1 through the top of the base 1 upward;

[0051] A control system, the control system comprising a controller and a pressure sensor 5;

[0052] The functional terminal assembly 3, the first detection switch terminal 41, the second detection switch terminal 42 and the pressure sensor 5 are all electrically connected to the controller;

[0053] The pressure sensor 5 is arranged on the side of the second elastic sheet 423 facing the first elastic sheet 413 and located on one side of the second contact protrusion 424. When the first elastic sheet 413 is pressed by the earphone terminal 2 and abuts against the second contact protrusion 424, the first elastic sheet 413 can abut against the pressure sensor 5.

[0054] The pressure sensor 5 is used to detect the pressure on the side of the second elastic sheet 423 facing the first elastic sheet 413, generate a pressure detection signal, and feed back the pressure detection signal to the controller;

[0055] The controller is used to control the opening and closing of the functional terminal assembly 3 according to the pressure detection signal.

[0056] As a preferred embodiment, the functional terminal assembly 3 includes a microphone terminal 31, a ground terminal 32, a right channel terminal 33 and a left channel terminal 34; the microphone terminal 31 is clamped on the outer wall of the base 1, and a clearance opening 14 is opened at the edge of the headphone jack 11 of the base 1 to allow the contact end of the microphone terminal 31 to extend into the headphone jack 11 of the base 1; the base 1 forms a channel inward from the headphone jack 11, and the ground terminal 32, the right channel terminal 33 and the left channel terminal 34 are sequentially distributed on the base 1 from the outside to the inside along the direction of the channel. Inside, the microphone terminal 31 is located on the outside of the ground terminal 32. When the headphone terminal 2 is inserted into the channel, the headphone terminal 2 is electrically connected to the microphone terminal 31, the ground terminal 32, the right channel terminal 33, the left channel terminal 34, the first detection switch terminal 41 and the second detection switch terminal 42 in sequence; when the headphone terminal 2 is inserted into the base 1, the headphone terminal 2 can first contact with the microphone terminal 31, the ground terminal 32, the right channel terminal 33 and the left channel terminal 34, and then contact with the first detection switch terminal 41 and the second detection switch terminal 42. On the contrary, when the headphone plug is pulled out from the base 1, the headphone plug can be disconnected from the second detection switch terminal 42 and the first detection switch terminal 41 first, and then disconnected from the left channel terminal 34, the right channel terminal 33, the ground terminal 32 and the microphone terminal 31, so that a timing device is formed under the combined action of the base 1, the first detection switch terminal 41, the second detection switch terminal 42, the right channel terminal 33, the left channel terminal 34, the microphone terminal 31 and the ground terminal 32, thereby avoiding the headphone plug from being disconnected when it is inserted into the base 1. When the earphone is used, there is a situation where noise occurs, which affects the comfort of using the earphone; in other embodiments of the present application, the ground terminal 32, the microphone terminal 31, the left channel terminal 34 and the right channel terminal 33 are distributed inside the base 1 from the outside to the inside along the direction of the channel. When the earphone terminal 2 is inserted into the channel, the earphone terminal 2 is electrically connected to the ground terminal 32, the microphone terminal 31, the left channel terminal 34, the right channel terminal 33, the first detection switch terminal 41 and the second detection switch terminal 42 in sequence; it can also achieve the effect of avoiding noise.

[0057] The microphone terminal 31, the ground terminal 32, the right channel terminal 33 and the left channel terminal 34 are all electrically connected to the controller; the controller is used to control the opening and closing of the microphone terminal 31, the ground terminal 32, the right channel terminal 33 and the left channel terminal 34 according to the pressure detection signal. Specifically, when the headphone terminal 2 is inserted, the first spring piece 413 is squeezed by the headphone terminal 2, and the first spring piece 413 can abut against the second contact protrusion 424 and the pressure sensor 5. At this time, the pressure sensor 5 detects that the second spring piece 42 3, generates a pressure detection signal, and feeds back the pressure detection signal to the controller. The controller controls the microphone terminal 31, the ground terminal 32, the right channel terminal 33 and the left channel terminal 34 to open according to the pressure detection signal, and starts sound transmission, thereby avoiding the situation where noise occurs when the headphone plug is inserted into the base 1. When the headphone terminal 2 is pulled out of the base 1, the headphone terminal 2 is first disengaged from the first contact protrusion 414 on the first spring sheet 413, so that the first spring sheet 413 and the second spring sheet 423 are separated from each other. The second contact protrusion 424 and the pressure sensor 5 are disengaged. At this time, the pressure detection signal is interrupted, and the controller controls the microphone terminal 31, the ground terminal 32, the right channel terminal 33 and the left channel terminal 34 to be closed, so that when the headphone terminal 2 is pulled out of the base 1, the headphone plug is prevented from making noise when the base 1 is pulled out; when the headphone socket is not in use, the first detection switch terminal 41 and the second detection switch terminal 42 inside the base 1 are in a normally disconnected state to prevent noise during subsequent insertion. Only when the headphone terminal 2 is fully inserted into the base 1 and electrically connected to the first detection switch terminal 41, the first spring piece 413 of the first detection switch terminal 41 is electrically connected to the second contact protrusion 424 on the second spring piece 423 and triggers the pressure sensor 5, generates a pressure detection signal, and forms a trigger signal, and then controls the microphone terminal 31, the ground terminal 32, the right channel terminal 33 and the left channel terminal 34 to be turned on through the controller, which further avoids the noise, makes the anti-noise effect better, and thus improves the comfort of the headphone.

[0058] As a preferred embodiment, the microphone terminal 31 includes a bending plate 311, a card interface 312, a microphone spring 313, a microphone contact protrusion 314 and a microphone welding foot 315; the bending plate 311 is provided with a card interface 312 on both sides, and the two side surfaces of the base 1 are provided with a card protrusion 18 corresponding to the card interface 312, and the card protrusion 18 can be engaged with the card interface 312, so that the microphone terminal 31 is fixedly installed on the base 1, and the microphone welding foot 315 is connected to one end of the bending plate 311 and is located above the card protrusion 18; the microphone spring 313 is arranged in the middle of the bending plate 311 and is located between the two card interfaces 312, and the microphone contact protrusion 314 is arranged on the microphone spring 313, and the microphone contact protrusion 314 extends into the headphone jack 11 through the make way opening 14, and the microphone contact protrusion 314 can abut against the outer surface of the headphone terminal 2. By using the microphone spring 313 and the microphone contact protrusion 314 in coordination and utilizing the elasticity of the microphone spring 313, the microphone contact protrusion 314 can be brought into contact with the outer surface of the headphone terminal 2. With this design, the contact is more complete, and the contact detection signal between the microphone terminal 31 and the headphone terminal 2 can be enhanced. At the same time, the microphone terminal 31 can be completely fixed on the base 1 through the action of the card protrusion 18 and the card interface 312.

[0059] As a preferred solution, the base 1 is provided with a grounding installation groove 15, a right channel installation groove 16 and a left channel installation groove 17 corresponding to the grounding terminal 32, the right channel terminal 33 and the left channel terminal 34, respectively, for respectively clamping and installing the grounding terminal 32, the right channel terminal 33 and the left channel terminal 34. By providing the grounding installation groove 15, the right channel installation groove 16 and the left channel installation groove 17 on the base 1, for respectively clamping and installing the grounding terminal 32, the right channel terminal 33 and the left channel terminal 34, the structure is simple and the installation is convenient.

[0060] In this embodiment, the grounding terminal 32 includes a grounding mounting plate, a grounding spring, a grounding contact protrusion and a grounding welding foot. The grounding mounting plate is clamped in the grounding mounting groove 15 to facilitate the installation of the grounding terminal 32 on the base 1. The grounding spring is arranged on the side wall of the grounding mounting plate and is located on the inner side of the grounding mounting plate. The grounding contact protrusion is arranged on the inner side of the grounding spring and can abut on the outer surface of the headphone terminal 2. The grounding spring and the grounding contact protrusion enable the grounding terminal 32 to contact the headphone terminal 2 more stably. The grounding contact protrusion is better abutted on the headphone terminal 2 by the elasticity of the grounding spring. In this design, the contact is more sufficient, which can enhance the contact detection signal between the grounding terminal 32 and the headphone terminal 2. The grounding welding foot is arranged on the top of the grounding mounting plate, and the grounding welding foot passes through the grounding mounting groove 15 upward and extends out of the base 1.

[0061] The right channel terminal 33 includes a right channel mounting plate, a right channel spring sheet, a right channel contact protrusion and a right channel welding foot. The right channel mounting plate is snapped into the right channel mounting groove 16 to facilitate mounting the right channel terminal 33 on the base 1. The right channel spring sheet is arranged at the bottom of the right channel mounting plate. The right channel spring sheet is arranged vertically upward and located on the inner side of the right channel mounting plate. The right channel contact protrusion is arranged on the inner side of the right channel spring sheet and can abut on the outer surface of the headphone terminal 2. The right channel terminal 33 can be more stably contacted with the headphone terminal 2 through the right channel spring sheet and the right channel contact protrusion. The right channel contact protrusion is better abutted against the headphone terminal 2 through the elasticity of the right channel spring sheet. In this design, the contact is more sufficient, which can enhance the contact detection signal between the right channel terminal 33 and the headphone terminal 2. The right channel welding foot is arranged on the top of the right channel mounting plate. The right channel welding foot passes through the right channel mounting groove 16 upward and extends out of the base 1.

[0062] The left channel terminal 34 includes a left channel mounting plate, a left channel spring, a left channel contact protrusion and a left channel welding foot. The left channel mounting plate is snap-fitted into the left channel mounting groove 17 to facilitate mounting the left channel terminal 34 on the base 1. The left channel spring is arranged on the side wall of the left channel mounting plate and is located on the inner side of the left channel mounting plate. The left channel contact protrusion is arranged on the inner side of the left channel spring and can abut on the outer surface of the headphone terminal 2. The left channel spring and the left channel contact protrusion enable the left channel terminal 34 to contact the headphone terminal 2 more stably. The left channel contact protrusion is better abutted against the headphone terminal 2 by the elasticity of the left channel spring. In this design, the contact is more sufficient, which can enhance the contact detection signal between the left channel terminal 34 and the headphone terminal 2. The left channel welding foot is arranged on the top of the left channel mounting plate, and the left channel welding foot passes through the left channel mounting groove 17 upward and extends out of the base 1.

[0063] As a preferred solution, the base 1 is made of high-temperature nylon material, which is beneficial to improving the anti-interference performance of the base 1 and preventing external signals from being transmitted to the inside of the base 1 to cause detection signals of the terminal components, thereby generating noise.

[0064] As a preferred solution, the top of the base 1 is provided with an installation positioning column 6, and two installation positioning columns 6 are provided for installing the base 1 on the circuit board. By providing two installation positioning columns 6 on the top of the base 1, the base 1 is installed on the circuit board through the installation positioning columns 6, and the base 1 can be limited, making the installation of the base 1 more convenient.

[0065] The working mode of the utility model is as follows:

[0066] When in use, when the headphone terminal 2 is inserted into the base 1, the headphone terminal 2 can first contact with the microphone terminal 31, the ground terminal 32, the right channel terminal 33 and the left channel terminal 34, and then contact with the first detection switch terminal 41 and the second detection switch terminal 42. Conversely, when the headphone plug is pulled out from the base 1, the headphone plug can first disconnect from the second detection switch terminal 42 and the first detection switch terminal 41, and then disconnect from the left channel terminal 34, the right channel terminal 33, the ground terminal 32 and the microphone terminal 31, so that a timing device is formed under the combined action of the base 1, the first detection switch terminal 41, the second detection switch terminal 42, the right channel terminal 33, the left channel terminal 34, the microphone terminal 31 and the ground terminal 32, thereby avoiding the occurrence of noise when the headphone plug is inserted into the base 1, thereby affecting the comfort of the headphone.

[0067] When the headphone terminal 2 is inserted, the first spring piece 413 is squeezed by the headphone terminal 2, and the first spring piece 413 is deformed to a shape and abuts against the second contact protrusion 424 and the pressure sensor 5. At this time, the pressure sensor 5 detects the pressure on the second spring piece 423, generates a pressure detection signal, and feeds back the pressure detection signal to the controller. The controller controls the microphone terminal 31, the ground terminal 32, the right channel terminal 33 and the left channel terminal 34 to open according to the pressure detection signal, and starts sound transmission, thereby avoiding the occurrence of noise when the headphone plug is inserted into the base 1. When the headphone terminal 2 is pulled out of the base 1, the headphone terminal 2 first disengages from the first contact protrusion 414 on the first spring piece 413, so that the first spring piece 413 disengages from the second contact protrusion 424 on the second spring piece 423 and the pressure sensor 5. At this time, the pressure detection signal is interrupted, and the controller controls the microphone terminal 31, the ground terminal 32, the right channel terminal 33 and the left channel terminal The first channel terminal 34 is closed, so that when the headphone terminal 2 is pulled out of the base 1, noise is avoided when the headphone plug is pulled out of the base 1; when the headphone socket is not in use, the first detection switch terminal 41 and the second detection switch terminal 42 inside the base 1 are in a normally disconnected state to avoid noise during subsequent insertion. Only when the headphone terminal 2 is fully inserted into the base 1 and squeezes the first spring piece 413 by contacting the first contact protrusion 414, and the headphone terminal 2 is electrically connected to the first detection switch terminal 41, the first spring piece 413 of the first detection switch terminal 41 is electrically connected to the second contact protrusion 424 on the second spring piece 423 and triggers the pressure sensor 5, generates a pressure detection signal, and forms a trigger signal, and then controls the microphone terminal 31, the ground terminal 32, the right channel terminal 33 and the left channel terminal 34 to be turned on through the controller, which further avoids noise, makes the anti-noise effect better, and thus improves the comfort of headphone use.

[0068] The utility model is described in detail above. The description of the specific embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A noise-proof headphone socket, characterized in that: include A base (1), the base (1) being arranged in a cavity, and an earphone jack (11) being arranged at one end of the base (1) for inserting an earphone terminal (2); A functional terminal assembly (3), wherein the functional terminal assembly (3) is arranged in the base (1), and the earphone terminal (2) is inserted into the base (1) and electrically connected to the functional terminal assembly (3); A detection switch terminal assembly (4), wherein the base (1) forms a channel inwardly from the headphone jack (11), the functional terminal assembly (3) and the detection switch terminal assembly (4) are sequentially distributed inside the base (1) from the outside to the inside along the direction of the channel, and the detection switch terminal assembly (4) comprises a first detection switch terminal (41) and a second detection switch terminal (42); A first mounting groove (12) and a second mounting groove (13) are provided on a side wall of the base (1) facing away from the headphone jack (11); the first mounting groove (12) and the second mounting groove (13) are both connected to the cavity of the base (1); the first mounting groove (12) and the second mounting groove (13) are arranged on the side wall of the base (1) in sequence from the inside to the outside; The first detection switch terminal (41) comprises a first mounting plate (411), a first clearance groove (412), a first elastic sheet (413), a first contact protrusion (414) and a first welding foot (415); The first mounting plate (411) is clamped in the first mounting groove (12); the first clearance groove (412) is provided on the first mounting plate (411); one end of the first spring sheet (413) is connected to the inner side wall of the first clearance groove (412); the first contact protrusion (414) is arranged on the side of the first spring sheet (413) facing the earphone terminal (2); the first welding foot (415) is arranged on the top of the first mounting plate (411) and extends upward through the top of the base (1) and out of the base (1); The second detection switch terminal (42) comprises a second mounting plate (421), a second clearance groove (422), a second elastic sheet (423), a second contact protrusion (424) and a second welding foot (425); The second mounting plate (421) is clamped in the second mounting groove (13); the second clearance groove (422) is provided on the second mounting plate (421); one end of the second elastic sheet (423) is connected to the inner side wall of the second clearance groove (422); the second contact protrusion (424) is provided on the side of the second elastic sheet (423) facing the first elastic sheet (413); the second welding leg (425) is provided on the top of the second mounting plate (421) and extends upward through the top of the base (1) and out of the base (1); A control system, the control system comprising a controller and a pressure sensor (5); The functional terminal assembly (3), the first detection switch terminal (41), the second detection switch terminal (42) and the pressure sensor (5) are all electrically connected to the controller; The pressure sensor (5) is arranged on the side of the second elastic sheet (423) facing the first elastic sheet (413) and is located on one side of the second contact protrusion (424); when the first elastic sheet (413) is pressed by the earphone terminal (2) and abuts against the second contact protrusion (424), the first elastic sheet (413) can abut against the pressure sensor (5); The pressure sensor (5) is used to detect the pressure on the side of the second elastic sheet (423) facing the first elastic sheet (413), generate a pressure detection signal, and feed back the pressure detection signal to the controller; The controller is used to control the opening and closing of the functional terminal assembly (3) according to the pressure detection signal.

2. The anti-noise headphone socket according to claim 1, characterized in that: The functional terminal assembly (3) comprises a microphone terminal (31), a ground terminal (32), a right channel terminal (33) and a left channel terminal (34); The microphone terminal (31) is clamped on the outer wall of the base (1), and a clearance opening (14) is provided at the edge of the earphone jack (11) of the base (1) to allow the contact end of the microphone terminal (31) to extend into the earphone jack (11) of the base (1); The base (1) forms a channel inward from the headphone jack (11); the ground terminal (32), the right channel terminal (33) and the left channel terminal (34) are sequentially distributed inside the base (1) from the outside to the inside along the direction of the channel; the microphone terminal (31) is located outside the ground terminal (32); when the headphone terminal (2) is inserted into the channel, the headphone terminal (2) is sequentially electrically connected to the microphone terminal (31), the ground terminal (32), the right channel terminal (33), the left channel terminal (34), the first detection switch terminal (41) and the second detection switch terminal (42); The microphone terminal (31), the ground terminal (32), the right channel terminal (33) and the left channel terminal (34) are all electrically connected to the controller; The controller is used to control the opening and closing of the microphone terminal (31), the ground terminal (32), the right channel terminal (33) and the left channel terminal (34) according to the pressure detection signal.

3. The anti-noise headphone socket according to claim 2, characterized in that: The microphone terminal (31) comprises a bent plate (311), a card interface (312), a microphone spring (313), a microphone contact protrusion (314) and a microphone welding foot (315); The two sides of the bending plate (311) are provided with card interfaces (312), and the two side surfaces of the base (1) are provided with card protrusions (18) corresponding to the card interfaces (312), and the card protrusions (18) can be engaged with the card interfaces (312), so that the microphone terminal (31) is fixedly installed on the base (1), and the microphone welding foot (315) is connected to one end of the bending plate (311) and is located above the card protrusion (18); The microphone spring (313) is arranged in the middle of the bending plate (311) and between the two card interfaces (312); the microphone contact protrusion (314) is arranged on the microphone spring (313); the microphone contact protrusion (314) extends into the headphone jack (11) through the clearance opening (14); and the microphone contact protrusion (314) can abut against the outer surface of the headphone terminal (2).

4. The anti-noise headphone socket according to claim 2, characterized in that: The base (1) is provided with a grounding installation groove (15), a right channel installation groove (16) and a left channel installation groove (17) corresponding to the grounding terminal (32), the right channel terminal (33) and the left channel terminal (34), respectively, for clamping and installing the grounding terminal (32), the right channel terminal (33) and the left channel terminal (34), respectively.

5. The anti-noise headphone socket according to claim 1, characterized in that: The base (1) is made of high-temperature nylon material.

6. The anti-noise headphone socket according to claim 1, characterized in that: The top of the base (1) is provided with a mounting positioning column (6), and two mounting positioning columns (6) are provided and are used to mount the base (1) on a circuit board.

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