JP3036532U - 3-pole / 4-pole common plug and switch circuit for voice input / output device with switch - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide a three-pole / four-pole common plug and switch circuit of a voice input / output device with a switch, which can be used in an earphone / microphone with a switch even if the types of input / output terminals of a mobile phone are different Offer of. SOLUTION: A three-pole / four-pole common plug 10 includes a microphone electrode 1, an earphone or speaker electrode 2, and a ground electrode 3 which are insulated by an insulator 5 and integrally formed to form a plug-in column portion 6. The base portion 7 of the insertion columnar portion 6, the groove portion 8 provided in the base portion 7, the terminal portion 9 formed in the groove portion 8, and the three electrodes 1, 2, 3, and 3 laid in the base portion 7 in the base portion 7. Four lines a extending from the other end of the base portion 7 to the outside by connecting or joining to the terminal portion 9, respectively.
b, c and d, and the groove portion 8 are formed so as to be able to be fitted or screwed into the electrode body, and the terminal portion 9 is formed so as to be connectable to the electrode body at the bottom portion or the side portion inside the groove portion 8. When the electrode body as the fourth electrode is fitted into or screwed into the groove portion 8, the electrode body is connected to the line d via the terminal portion 9, so that a 4-pole plug is formed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a plug and a switch circuit of a voice input / output device with a switch, and more particularly to a 3 pole / 4 pole common plug and its switch circuit.

[0002]

[Prior art]

 FIG. 6 (a) shows a conventional example of an earphone microphone with a switch used as an accessory of a portable wireless telephone, etc., an earphone microphone with a switch 60 has an earphone 61 at one end and a portable wireless telephone such as a portable wireless telephone. It is equipped with a plug 64 that is inserted into an input / output terminal section such as an audio input / output terminal section to input an audio signal and the like, and is provided with a housing in which a microphone 62 and a switch 63 are provided side by side, and a cord 65 is provided. It is electrically connected with.

FIG. 6B shows a conventional example of a cylindrical convex connector (commonly referred to as an RC connector) used as an output terminal of a video or the like. The convex connector 67 is composed of an electric conductor, and the center of the convex portion is formed. A hole 68 for inserting a plug is provided in the. A four-pole plug, which will be described later, is used to connect to the convex connector 67, and the pole contacting (fitting) with the upper portion or the outer periphery of the convex connector 67 is the fourth pole.

FIG. 7A is a conventional example of a three-pole plug of an earphone microphone with a switch. The three-pole plug 70 has three electrodes, a microphone electrode 71, an earphone electrode 72, and a ground electrode 73. The insertion columnar portions 76 (see the sectional view of the 3-pole / 4-pole plug in FIG. 2) integrally formed by being insulated by the insulator 75, the base portion 77, and the base portion 77 laid in the base portion 77. It has three lines a, b, and c electrically connected to the electrodes 71 to 73, respectively, and extending from the other end of the base portion to the outside.

FIG. 7B is a conventional example of a switch circuit of an earphone microphone with a switch using a three-pole plug as shown in FIG. 7A. In the switch circuit 170, the earphone 172 is connected to the lines a and c. Connected, the microphone 171 is connected to the lines b and c, the capacitor 177 is provided in series with the line a, and the switch circuit 173 is provided in parallel with the line a with the capacitor 177 interposed therebetween, and the input electrode side of the switch circuit 177 is provided. Is provided with a resistor 174. Further, between the lines b and c, a capacitor 175 and a diode 176 having the lines c to b in the forward direction are provided in parallel with the earphone 171.

The switch circuit 170 having such a configuration changes the internal resistance by lowering the impedance between the lines a and c by pushing down the switch 177, and the incoming / outgoing by the on / off operation of the switch 173. Can perform actions.

FIG. 8A shows a conventional example of a four-pole plug of an earphone microphone with a switch. A four-pole plug 80 has three electrodes, a microphone electrode 81, an earphone electrode 82, and a ground electrode 74. A fourth electrode fixed to the outer periphery of the base of each plug-in columnar portion 86 (see the cross-sectional view of the 3 pole / 4 pole plug in FIG. 2) integrally formed by being insulated by the insulator 84, and It has a base portion 87 of the columnar portion 86 and four lines a, b, c, d laid in the base portion 87 and connected to the electrodes 81 to 84 in the base portion 87 and extending from the other end of the base portion to the outside. ing.

FIG. 8B is a conventional example of a switch circuit of an earphone microphone with a switch using a three-pole plug as shown in FIG. 8A. In the switch circuit 180, the earphone 182 is connected to the lines a and c. Connected, the microphone 181 is connected to the lines b and c, the switch section 183 is connected to the lines c and d, and the capacitors 184 and the lines c to b are connected in parallel to the earphone 181 between the lines b and c in the forward direction. Is provided. The switch circuit 180 having such a configuration can perform incoming / outgoing operation by turning on / off the switch unit 183.

[0009]

When the conventional 3-pole plug 70 or 4-pole plug 80 is used for a voice input / output device (for example, earphone microphone with switch), the switch circuit 170 or 180 described above is used. Thus, the input / output operation of the voice (that is, the input / output operation of the voice input device or the voice output device) can be controlled by the on / off operation of the switch.

However, the conventional earphone / microphone with switch uses a 3-pole plug or a 4-pole plug depending on the type of input / output terminals of electric devices such as mobile phones (that is, mobile phone models). There is a problem that one type of earphone / microphone with switch cannot be used for mobile phones of different manufacturers.

The present invention was devised to solve the above-mentioned problems, and has a switch that enables use in a switch-equipped earphone microphone even if the type of input / output terminals of an electric device such as a mobile phone is different. The purpose is to provide a 3-pole / 4-pole common plug and a switch circuit for an audio input / output device.

[0012]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, in the 3-pole / 4-pole common plug of the voice input / output device with a switch of the present invention, the voice input device electrode, the voice output device electrode, and the ground electrode are isolated from each other. Column formed integrally as a single body, a base having one end fixed with the column for insertion, and the other column formed at the end of the base where the column for insertion is fixed A groove portion having a larger diameter, a terminal portion formed in the groove portion, three lines laid in the base portion, connected to or bonded to three electrodes in the base portion, and extending to the outside from the other end of the base portion, and the base portion And a line extending inside from the other end of the base connected to or joined to the terminal.

A preferred embodiment of the 3-pole / 4-pole common plug of the voice input / output device with a switch of the present invention is such that the groove portion is formed so as to be capable of being fitted or screwed with the electrode body, and the terminal portion is a bottom portion in the groove portion. Is formed so that it can be connected to the electrode body at the side, and it becomes a 4-pole plug when the electrode body is fitted or screwed into the groove, and a 3-pole plug when it is not fitted or screwed. Is configured.

Another preferred embodiment of the 3-pole / 4-pole common plug of the voice input / output device with a switch of the present invention is to hold an electrode body at the end of the base on which the insertion column is fixed. Along with this, there is provided a slide portion that allows the electrode body to slide in the longitudinal direction of the insertion columnar portion, the groove portion is formed so as to be capable of being fitted or screwed into the electrode body, and the terminal portion is formed at the bottom portion or the side portion in the groove portion. It is formed so that it can be connected to the electrode body, and becomes a 4-pole plug when the electrode body is fitted or screwed into the groove along the slide portion, and is 3 poles when the electrode body is not fitted or screwed in the groove portion. It is configured to be a pole plug.

Further, in the three-pole / four-pole common plug of each of the voice input / output devices with switches, it is desirable that the electrode body has a ring shape.

The switch circuit of the voice input / output device with a switch of the present invention has one end connected to the electrode for a voice input device of the three-pole / four-pole common plug of the present invention, and the other end of the switch circuit is the first end of the voice input device. The first line connected to the child, the second terminal connected to the second terminal, the fourth line, and the sixth line of the voice input device, and the sound of the three-pole / four-pole common plug at one end. A third line connected to the voice output device electrode and the other end connected to the first terminal of the voice output device, and a fourth line connected to the second terminal and the second line of the voice output device. And a fifth line having one end connected to the fourth electrode of the three-pole / four-electrode common plug and the other end having the first contact of the switch portion, and one end connected to the three-electrode / 4-electrode common plug. A sixth line connected to the ground electrode and having a second contact of the switch section at the other end; And a backflow prevention member that is provided between the line and the fourth line and has a direction from the second line to the fourth line as a forward direction.

[0017]

[Embodiment of the invention]

 <First Embodiment> FIG. 1A is a side view of a 3-pole / 4-pole common plug of the present invention, and FIG. 1B is a partial cross-sectional side view of the 3-pole / 4-pole common plug. Is.

In FIGS. 1A and 1B, the three-pole / four-pole common plug 10 includes a microphone electrode 1, an earphone or speaker electrode 2, and a grounding electrode 3 which are insulators and Insertion columnar portion 6 which is insulated by the synthetic resin 5 as a forming member and is formed in a columnar shape integrally with the synthetic resin 5, a base portion 7 in which the insertion columnar portion 6 is fixed at one end, and the base portion 7 is inserted. A groove 8 having a diameter larger than that of the insertion pillar 6 provided at the end on the side where the pillar 6 is fixed, a terminal 9 formed in the groove 8, and a base 7 laid inside the base 7. Inside, four lines a, b, c, d extending from the other end of the base portion 7 by connecting or joining to the three electrodes 1, 2, 3 and the terminal portion 9 respectively, and the groove portion 8 are electrode bodies. 4 (see FIG. 2) so that it can be fitted or screwed, and the terminal portion 9 is in the groove portion 8. Is formed so that it can be connected to the electrode body 4 at the bottom or the side. The symbol 12 is a cord containing four lines a, b, c, d extending from the other end of the base 7 to the outside.

In the case of FIG. 1, since the electrode body 4 as the fourth electrode is not fitted or screwed into the groove portion 8, the voltage of the line d connected to the terminal portion 9 is zero. Therefore, the electrode can be used as a three-pole plug in which the three electrodes of the microphone electrode 1, the earphone or speaker electrode 2, and the ground electrode 3 function.

FIG. 2 is a diagram showing a configuration example of the electrode body 4 used as the fourth electrode. In FIGS. 2A and 2B, the electrode body 4 is similar to the positive cross section of the insertion columnar portion 6 so that the electrode body 4 can be loosely fitted in the insertion columnar portion 6 of the 3 pole / 4 pole common plug 10. It has a space (or a through hole) 43. Since the positive cross section of the insertion columnar portion 6 of FIG. 1 is a circle, the space 43 in FIG. 2A and FIG. 2B is a through hole having a circular positive cross section. Further, when the electrode body 4 is configured to be fittable in the groove portion 8 as shown in FIG. 2A, the outer shape (front cross section) is not limited, and may be circular or polygonal, but as shown in FIG. 2B. When the electrode body 4 is provided with a screw groove 45 and the electrode body 4 is formed so as to be screwed into the groove portion 8, the electrode body 4 has a circular shape (that is, in this case, the conductor 4 has a ring shape). In addition, the grooves 41 and 42 provided inside the electrode body 4 in FIG. 2B are grooves for detent when the electrode body 4 is fitted.

It is to be noted that the inside of the electrode body 4 in FIG. 2 is electrically insulated, for example, by processing such as crimping a synthetic resin, or the inside of the electrode body 4 is fitted into the groove portion 8 in FIG. When screwed, it is desirable that the portion of the insertion columnar portion 6 with which the electrode body 4 can abut be subjected to an insulation treatment.

FIG. 3 is a side view when the electrode body 4 as shown in FIG. 2 is fitted or screwed into the groove portion 8 of FIG. 1. The electrode body 4 is inserted from the tip of the insertion columnar portion 6 to the base portion 7. It is carried toward and is fitted or screwed into the groove portion 8. In this case, the tip or side portion of the electrode body 4 abuts and connects to the terminal portion 9 provided at the bottom portion or side portion of the groove portion 8, so that the electrode body 4 is connected to the line d via the terminal portion 9 and 4 electrodes. Therefore, the electrode can be used as a four-pole plug in which the microphone electrode 1, the earphone or speaker electrode 2, the ground electrode 3, and the four electrodes of the fourth electrode function.

FIG. 4 is a diagram showing a configuration of a switch circuit of a voice input / output device with a switch (for example, an earphone microphone with a switch) using the 3-pole / 4-pole common plug 10 of the present invention.

In FIG. 4, the switch circuit 100 includes a line a having one end connected to the microphone electrode 1 and the other end connected to the first terminal of the microphone 101, and a line from the second terminal of the microphone 101. Therefore, the line b ′ from the second terminal of the earphone 102 and the line a ′ connected to the line c, one end of which is connected to the earphone electrode 2, and the other end of which is connected to the first terminal of the earphone 101. A line b, one end of which is connected to the fourth electrode and a contact point 103A of the switch unit 103 at the other end, and a line d, one end of which is connected to the ground electrode 3 and a contact point 103B of the switch unit 103 at the other end. It is composed of a line c and a diode 104 as a backflow preventing member which is provided between the line b and the line d and whose forward direction is from the line b to the line d. You.

In the switch circuit 100 having the above-described configuration, the 3-pole / 4-pole common plug 10 does not fit or screw the electrode body 4 into the groove portion 8 so that the 3-pole / 4-pole common plug is used for an ordinary concave connector of a mobile phone or the like. When the plug 10 is inserted, the voltage of the line d becomes 0, and the switch unit 103 performs the on / off operation between the line b and the line c to perform the incoming / outgoing operation by the on / off operation. Since it is possible, it functions as a switch circuit for 3 pole plug. Further, the three-pole / four-pole common plug 10 fits or screw-engages the electrode body 4 into the groove portion 8 to form a fourth electrode, and moves the electrode body 4 toward the base of the inserting columnar body 6 to fit into the groove portion 8. If the plug-in column 6 is inserted into the connection hole of the RC connector of an electric device such as a mobile phone until the upper part of the RC connector comes into contact with the electrode body 4, the voltage of the line d becomes higher than the voltage of the line d. Therefore, the switch unit 103 can perform an on / off operation between the line d and the line c, and an incoming / outgoing operation can be performed by the on / off operation, and functions as a 4-pole plug switch circuit.

<Second Embodiment> FIG. 5 is a side view of another embodiment of the 3-pole / 4-pole common plug of the present invention. In FIG. 5, the three-pole / four-pole common plug 10 ′ has three electrodes of the microphone electrode 1, the earphone or speaker electrode 2, and the grounding electrode 3 insulated by the insulator and the synthetic resin 5 as a forming member, respectively. Is formed integrally with the synthetic resin 5 into a columnar shape, the base portion 7 having the insertion columnar portion 6 fixed to one end thereof, and the end of the base portion 7 having the insertion columnar portion 6 fixed thereto. The groove 8 having a diameter larger than that of the insertion columnar portion 6 and the end on the side where the insertion columnar portion 6 is fixedly mounted, the electrode body 4 is held and the electrode body 4 is inserted into the insertion columnar portion 6. The sliding portion 15 is provided so as to be slidable in the longitudinal direction thereof, and the groove portion 8 is formed so that it can be fitted into or screwed into the electrode body 4.

The slide portion 15 (most of which is hidden inside the electrode body 4 and only a part thereof is visible in FIG. 5) is fixed to the end portion where the insertion columnar portion 6 is fixed, and the insertion columnar portion A guide rail (not shown) fitted to a guide groove (not shown) provided inside the electrode body 4 so that the electrode body 4 can be slid in the longitudinal direction of the insertion columnar portion 6 toward the distal end direction of the electrode body 6. ) Consists of. When the 3-pole / 4-pole common plug 10 'is used as a 3-pole plug, the electrode body 4 may be moved toward the tip of the inserting columnar body 6 and the inserting columnar body 6 may be inserted into the concave connector. When used as a plug, the electrode body 4 is moved toward the base of the insertion columnar body 6 to be fitted into the groove portion 8, the insertion columnar body 6 is connected to the connecting hole of the RC connector, and the upper portion of the RC connector is brought into contact with the electrode body 4. All you have to do is insert it until you touch it. In addition, a convex portion is provided at the tip of the slide portion 15 to prevent the electrode body 4 from coming out. Further, the switch circuit 100 of FIG. 4 can be used as it is for the three-pole / four-pole common plug of this embodiment.

In the present embodiment, the electrode body 4 is loosely fitted in the slide portion 15 of the three-pole / four-pole common plug 10, and the electrode body is grooved in accordance with the shape of the connector of the other device to be inserted during use. It can be inserted into the connector to form a 4-pole plug, or can be released from the groove 8 to form a 3-pole plug.

[0029]

[Effect of the invention]

 According to the 3-pole / 4-pole common plug of the present invention, it can be used as a 4-pole plug by fitting the electrode body in the groove portion, and as a 3-pole plug when the electrode body is not fitted in the groove portion. Since it can be used, it can be connected even if the shape of the connector of electrical equipment is different.

In the third aspect of the invention, the electrode body 4 is loosely fitted in the slide portion 15 of the three-pole / four-pole common plug 10, and the electrode body is fitted to the shape of the connector of the other device to be inserted during use. It can be inserted into the groove 8 to form a four-pole plug, or can be released from the groove 8 to form a three-pole plug, and it does not fall off, so it is easy for the user to handle.

Further, the switch circuit has a simpler structure than the conventional example, and the 3-pole / 4-pole common plug does not fit or screw the electric conductor into the groove portion, and thus it can be used in a usual concave connector of a mobile phone or the like. When a 3-pole / 4-pole common plug is inserted, it functions as a 3-pole plug switch circuit, and the 3-pole / 4-pole common plug fits or screws an electric conductor into a groove to form a fourth electrode. If the body 4 is inserted into the groove and the plug-in column is inserted into the connecting hole of the RC connector of an electric device such as a mobile phone until the upper part of the RC connector comes into contact with the electrode body, it will function as a 4-pole plug switch circuit. To do.

[Brief description of the drawings]

FIG. 1 is a schematic view of a 3-pole / 4-pole common plug and an electrode body of the present invention.

FIG. 2 is a diagram showing a configuration example of an electrode body used as a fourth electrode.

FIG. 3 is a side view when the electrode body is fitted or screwed.

FIG. 4 is a diagram showing a configuration of a switch circuit of a voice input / output device with a switch using a 3-pole / 4-pole common plug of the present invention.

FIG. 5 is a side view of another embodiment of the 3-pole / 4-pole common plug of the present invention.

FIG. 6 is a diagram showing a conventional example of a switch-equipped earphone microphone used as an accessory of a portable wireless telephone or the like.

FIG. 7 is a diagram showing a conventional example of a three-pole plug and a switch circuit of an earphone microphone with a switch.

FIG. 8 is a diagram showing a conventional example of a 4-pole plug and a switch circuit of an earphone microphone with a switch.

[Explanation of symbols]

1,71,81 Microphone electrode 2,72,82 Earphone or speaker electrode 3,73,83 Grounding electrode 4,74,84 Fourth electrode (electrode body) 5,75,85 Synthetic resin (insulator) 6,76,86 Inserting columnar body 7,77,87 Base portion 8,78,88 Groove portion 9,79,89 Terminal portion 10,170,180 Switch circuit 15 Slide portion 60 Earphone microphone with switch (voice input / output device with switch) ) 101,171,181 Microphone (voice input device) 102,172,182 Earphone or speaker (voice output device) a, b, c, d line

Claims (5)

[Utility model registration claims] 1. A plug of a voice input / output device with a switch, wherein three electrodes of a voice input device electrode, a voice output device electrode, and a ground electrode are insulated and integrally formed. A base portion having the insertion columnar portion fixed to one end thereof, and a groove portion having a larger diameter than the insertion columnar portion provided at an end portion of the base portion on which the insertion columnar portion is fixedly formed, A terminal portion formed in the groove portion, three lines laid in the base portion and connected to or joined to the three electrodes in the base portion to extend from the other end of the base portion to the outside, and laid in the base portion, A three-pole / four-pole common plug for a voice input / output device with a switch, comprising: one line connected to or joined to the terminal portion and extending from the other end of the base portion to the outside. 2. The three-pole / four-pole common plug of the voice input / output device with a switch according to claim 1, wherein the groove portion is formed so as to be capable of being fitted into or screwed into the electrode body, and the terminal portion is a bottom portion in the groove portion or It is formed so as to be connectable to the electrode body at a side portion, and becomes a 4-pole plug when the electrode body is fitted or screwed into the groove portion, and becomes a 3-pole plug when not fitted or screwed. 3 pole / 4 pole common plug of voice input / output device with switch characterized by. 3. The three-pole / four-pole common plug of the voice input / output device with a switch according to claim 1, wherein the electrode body is held at an end portion of the base portion on which the insertion columnar portion is fixedly mounted, and the electrode body. Is provided with a slide portion that is slidable in the longitudinal direction of the insertion columnar portion, the groove portion is formed so as to be capable of being fitted or screwed into the electrode body, and the terminal portion is the electrode body at the bottom or side portion in the groove portion. When the electrode body is fitted or screwed into the groove along the slide portion, a four-pole plug is formed, and when the electrode body is not fitted or screwed in the groove, Is a three-pole / four-pole common plug of a voice input / output device with a switch, which is a three-pole plug. 4. The three-pole / four-pole common plug of the voice input / output device with a switch according to claim 2 or 3, wherein the electrode body that is formed so as to be loosely fit in the insertion columnar portion has a ring shape. A three-pole / four-pole common plug of a voice input / output device with a switch, which is characterized in that 5. One end is connected to an electrode for a voice input device of a 3 pole / 4 pole common plug of the voice input / output device with a switch according to claim 1, and the other end is a voice input device. A first line connected to a first terminal of the voice input device, a second line connected to a second terminal, a fourth line, and a sixth line of the voice input device, and one end of the three-pole / four-pole A third line connected to the sound output device electrode of the common plug and the other end connected to the first terminal of the sound output device, and a fourth line connecting the second terminal and the second line of the sound output device. Line, one end of which is connected to the fourth electrode of the three-pole / four-electrode common plug and the other end of which has a first contact of the switch section, and one end of which is a three-electrode / 4-electrode common plug A sixth line connected to the ground electrode and having a second contact of the switch section at the other end; And a backflow prevention member that is provided between the second line and the fourth line and has a forward direction in the direction from the second line to the fourth line. .