KR200280041Y1 - Earphone socket conneted with three pole plug or four pole plug - Google Patents

Abstract

The present invention is installed in personal handheld terminals and mobile phones, so that the three- and four-pole earphone plugs can be selectively connected to transmit sound and video, so that both three- and four-pole plugs can be accommodated and used. It relates to a three-pole and four-pole earphone socket.

The present invention is fixed to both sides of the lower end of the socket body, respectively, the first and second connection terminals in contact with the first and second terminals of the plug, the third and fourth connection terminals respectively fixed to the upper both sides of the socket body and It is mounted on the bottom surface of the socket body and consists of a fifth connection terminal connected to the first terminal together with the first connection terminal, wherein the third connection terminal is located in contact with the third terminal when the plug is four poles In the case of 3 poles, it is located in contact with the insulating member between the second terminal and the third terminal, and the fourth connection terminal is in contact with the fourth terminal when the plug to be connected is 4 poles, and in contact with the third terminal when it is 3 poles. Characterized in that it is located.

Description

Earphone socket with three and four poles {Earphone socket conneted with three pole plug or four pole plug}

The present invention relates to an earphone jack applied to a personal portable terminal and a mobile phone, and more particularly, a three-pole and four-pole earphone plug is selectively connected to a personal portable terminal and a mobile phone. And it relates to a three-pole and four-pole earphone socket (Socket) that can be used to accommodate both the three-pole plug or four-pole plug by transmitting the image.

In general, earphones (a concept including a headphone) connected to a personal mobile phone and a mobile phone are provided with a plug, and the plug is coupled to a socket of the personal mobile phone and the mobile phone to receive sound. It is.

The above-mentioned plug mainly uses two poles when receiving a mono sound source, and generally three poles when receiving a stereo sound source. One example of such a universal three-pole plug and a three-pole socket connected thereto is shown in FIGS. 1 and 2.

1a to 1d are views showing the structure of a conventional three-pole earphone socket, Figure 1a is a front view, Figure 1b is a rear view, Figure 1c is a right side view, Figure 1d is a plan view. 2 is a cross-sectional view illustrating a structure in which an earphone plug is inserted into the earphone socket shown in FIG. 1A.

As shown in the drawing, the socket 1 is fixed to the first connecting terminal 20 on the upper side of the socket body 10 through its conduit 12 formed on the upper side of the socket body 10 through its connecting end 22. ) Is brought into the inside to be in contact with the first terminal 20a of the plug 2. In addition, the second connection terminal 30 is provided at the lower right side of the socket body 10 as shown in FIG. 1A, and the connecting portion 32 entered into the socket body 10 is connected to the second terminal 30a of the plug 2. Is configured to come into contact with In addition, the third connection terminal 40 is configured at the lower left side in FIG. 1A so that the connection part 42 entered into the socket body 10 is in contact with the third terminal 40a of the plug 2. The connecting terminal 50 is also in contact with the third terminal 40a of the plug 2 together with the third connecting terminal 40.

Since the socket for earphone 1 is provided in a personal portable terminal and a mobile phone, when a user inserts the three-pole plug 2 of the earphone into the socket 1, the first, second, and second sockets provided in the socket body 10 are provided. The third connection terminals 20, 30, and 40 are in contact with the first, second, and third terminals 20a, 30a, and 40a of the plug 2, respectively, to transmit corresponding signals to the earphone. In general, the first terminal 20a functions as a microphone and a power supply, the second terminal 30a functions as a speaker, USB, and data, and the third terminal 40a functions as a ground. As such, the signals are connected and transmitted by the connection terminals 20, 30 and 40 of the socket 1 and the corresponding terminals 20a, 30a and 40a of the plug 2 so that the user can listen to a desired sound. .

However, such three-pole plugs and three-pole sockets are unable to transmit more information such as control signals or other signals of personal portable terminals and mobile phones. Therefore, in recent years, a multifunctional four-pole earphone jack has been proposed. In addition to the stereo reception function, the earphone jack uses a remote control connected to the cord line of the earphone to adjust, rewind, stop, It allows you to perform various functions such as fast forward. This will be described in more detail with reference to FIGS. 3 and 4.

Figure 3 is an exploded perspective view showing the configuration of a conventional four-pole earphone jack, Figure 4 is a combined cross-sectional view of FIG.

The 4-pole earphone jack is composed of a 4-pole plug 3 and a 4-pole socket 4 connected thereto. The 4-pole plug 3 and the 4-pole socket 4 include the 3-pole plug and the 3-pole socket described above. In addition to the configuration of the first, second, third terminal (60a, 70a, 80a) and the first, second, third connection terminal (60, 70, 80) the same as the annular shape surrounding the plug 3 The fourth terminal 90a and the annular fifth connecting terminal 90 that enters and connects into the annular fourth terminal 90a are provided at the front portion of the socket 4 corresponding thereto. In particular, the fourth terminal 90a has elasticity and is elastically coupled when the fourth terminal 90a is connected to the fifth connection terminal 90.

The four-pole plug of this configuration is mainly equipped with a terminal consisting of an elastic ring at the rear of the plug is coupled to the connection terminal provided on the socket of the personal mobile terminal and the mobile phone. As described above, the conventional four-pole earphone jack has an annular connection terminal and an annular connection terminal to a socket of a personal portable terminal and a mobile phone corresponding to the plug, so the structure is very complicated. Such a structure is made of a structure in which the external structure of the plug is modified in many international standards, so the production is difficult and incompatible, and the overall manufacturing cost is increased.

Existing three-pole and four-pole plugs and sockets described above are dedicated, and the four-pole plug cannot be connected in the three-pole socket, and the three-pole plug cannot be used in the four-pole socket.

Accordingly, an object of the present invention is to solve the above-mentioned drawbacks, and is installed in personal mobile terminals and mobile phones, the three-pole and four-pole earphone plugs are selectively connected to transmit sound, so that the three-pole plug or The present invention provides a three-pole and four-pole earphone socket for accommodating and using all four-pole plugs.

DETAILED DESCRIPTION A detailed description of embodiments of the present invention will be made with reference to the accompanying drawings, in which like numbers designate corresponding parts in the drawings.

1a to 1d are views showing the structure of a conventional three-pole earphone socket,

Figure 2 is a cross-sectional view showing a structure in which the earphone plug is inserted into the earphone socket shown in Figure 1a,

3 is an exploded perspective view showing the configuration of a conventional four-pole earphone jack,

4 is a cross-sectional view of the combination of FIG.

5a to 5d are views of the three-pole and four-pole earphone socket according to the present invention,

6 is a perspective view showing a socket of the present invention,

7 is a cross-sectional view taken along the line A-A of FIG.

8 is a cross-sectional view showing a state of use of the four-pole plug is inserted into the socket of the present invention,

9 is a circuit diagram under the connected state of FIG. 8;

10 is a cross-sectional view showing a state of use in which the three-pole plug is inserted into the socket of the present invention.

** Explanation of symbols for main parts of drawings **

100: socket 110: socket body

112: entrance 114: insertion space

116,116a: mounting groove 118,118a: entry hole

120: first connection terminal 122: fixed angle

124: connection terminal 130: second connection terminal

132: fixed angle 134: connection end

140: third connection terminal 142: fixed angle

144: plate body 146: connection end

150: fourth connection terminal 152: fixed angle

154: plate body 156: connection end

160: fifth connection terminal 162: fixed angle

164: connection end

Three-pole and four-pole combined earphone socket according to the present invention for achieving the above object is mounted on the personal portable terminal and mobile phone is connected to the terminals of the earphone plug, the earphone socket for mediating the signal transmission between the personal portable terminal and mobile phone and earphone In the first and second mounting grooves are formed in the longitudinal direction from the entrance to the plug to accommodate the terminals, and the first and second mounting grooves are formed on opposite sides, the outer surface portion between the mounting grooves A socket body having at least one entry hole communicating therein; A first connection terminal fixed to one side of the lower end of the socket body and having a connection end which enters into the socket body and is connected to a first terminal located at an end of the plug; A second connection terminal fixed to the lower end of the socket body facing the first connection terminal, the second connection terminal being positioned such that a connection end entered into the socket body is connected to the second terminal of the plug; The socket is inserted into and fixed to the first mounting groove formed on one side of the upper end of the socket body, and is bent from the fixing portion to extend in close contact with a neighboring surface adjacent to the first mounting groove, the connection end of which is connected to the socket through the entry hole. A third connection terminal entered into the body and positioned to be in contact with a third terminal when the plug to be connected is four poles, and in contact with an insulating member between the second terminal and the third terminal when the plug is three poles; The second mounting groove is formed and fixed to the second mounting groove formed on the other side of the upper end of the socket body facing the third connecting terminal, the fixing portion is bent toward the surface portion where the entry hole is formed, the end is passed through the entry hole A fourth connection terminal which enters into the insertion space and is in contact with a fourth terminal when the plug is connected to a fourth pole, and is in contact with a third terminal when a third pole is connected; And a fifth connection terminal fixed to the center of the lower end of the socket body and in contact with the first terminal of the plug together with the first connection terminal.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to a preferred embodiment of the present invention.

5A to 5D are views of a three-pole and a four-pole earphone socket according to the present invention. FIG. 5A is a front view of the present socket, FIG. 5B is a side view thereof, FIG. 5C is a rear view thereof, and FIG. 5D is It is a plan view. 6 is a perspective view showing the socket of the present invention, Figure 7 is a cross-sectional view taken along line A-A of FIG.

As shown, the socket body 110 of the earphone socket 100 is provided with an insertion space 114 into the interior from the entrance 112 to the plug (not shown). The first connection terminal 120 is fixed to the lower left side of the socket body 110. The first connection terminal 120 protrudes to the outside of the socket body 110 and is connected to the PCB (PCB) not shown, and a fixed angle 122, and extending from the fixed angle 122, the socket body 110 It is composed of a connecting portion 124 is entered into the first terminal of the plug. In particular, the connecting portion 124 is bent and protruded to be connected to the first terminal only the portion that is in contact with the first plate of the metal plate body.

The second connecting terminal 130 is fixed to the socket body 110 opposite to the first connecting terminal 120. The second connection terminal 130 also has a fixed angle 132 is located outside the socket body 110, the connection portion 134 extending therefrom enters the insertion space 114 on the portion corresponding to the second terminal of the plug Located in The third connection terminal 140 is fixed to the upper left side of the socket body 110 spaced apart from the first connection terminal 120 by a predetermined distance. The third connection terminal 140 is a state in which both side ends of the plate body portion 144, which is bent from the fixing angle 142, is inserted into and fixed to the first mounting groove 116 formed on the side of the socket body 110. Is bent again in close contact with the upper surface of the socket body 110, the end of which is entered into the position through the first entrance hole 118 formed on the upper surface of the socket body 110. The connection terminal 146 of the third connection terminal 140 thus entered is in contact with the third terminal of the plug. In particular, the connection end 146 of the third connection terminal 140 is bent into a V shape and protrudes toward the insertion space 110 in the socket 100. Therefore, the connection end 146 of the third connection terminal 140 is bent to have elasticity and elastically line-contact as the third terminal enters. Now, the line contact point of the three connection terminal 140 corresponds to the position of the third terminal of the four-pole plug. When the three-pole plug is inserted into the socket 100, the line contact point is the second terminal and the third terminal. Corresponds to the position of the insulating member interposed between. Therefore, when the 3-pole plug is connected to the main socket 100, the third connecting terminal 140 is connected to the insulating member and loses its function.

The fourth connection terminal 150 is fixed to the upper right side of the socket body 100 on the opposite side of the third connection terminal 140. The fourth connecting terminal 150 also has a plate body portion 154 extending from the fixing angle 152 in the second mounting groove 116a formed at the upper right side of the socket body 110 like the third connecting terminal 140. Inserted and bent again in a state where both sides are fitted and fixed to be in close contact with the upper surface of the socket body 110, and then the connection end 156 through the second inlet hole 118a formed in the upper surface of the socket body 110. ) Will enter the interior. The connection terminal 156 of the fourth connection terminal 150 entered into the insertion space 114 of the socket body 110 corresponds to the fourth terminal when the plug is connected to the socket 100 at a four pole position. In the case of a three-pole and in the case of a three-pole, it is located in the portion corresponding to the third terminal. In addition, the socket 100 includes a fifth connection terminal 160 connected to the first terminal of the plug together with the first connection terminal 120 at the center of the lower end thereof. The fifth connection terminal 160 also includes a fixed angle 162 located outside the lower end of the socket body 110 and a connection end 164 positioned inside the socket 100 and in contact with the end of the first terminal.

As described above, the socket body 110 is provided with first and second mounting grooves 116 and 116a for fitting the third and fourth connection terminals 140 and 150 on both upper surfaces thereof. The mounting grooves 116 and 116a are plate-shaped recesses formed on the side of the socket body 110, and grooves are formed on both sides thereof, and as a result, third and fourth connections inserted into the jaws are formed on both sides. Both ends of the terminals 140 and 150 are gripped. In addition, the socket body 110 is perforated with a first entrance hole 118 through which the connection end 146 of the third connection terminal 140 enters the insertion space 114 in the upper surface portion, and is connected to the upper portion. The second entry hole 118a into which the connection end 156 of the fourth connection terminal 150 enters is drilled. In this embodiment, the first and second entry holes 118 and 118a are connected, but may be formed in the socket body 110 individually.

8 is a cross-sectional view showing a state in which the four-pole plug is inserted into the socket of the present invention, Figure 9 is a circuit diagram under the connected state of FIG.

When the 4-pole plug 200 is inserted into the socket 100, the plug 200 enters through the entrance port 112, and the terminal portion thereof is positioned in the insertion space 114 of the socket 100. Particularly, when the plug 200 enters, the first terminal 210 of the plug 200 pushes and enters the first connection terminal 120 located in the socket 100 to make elastic contact, and at the same time, the second terminal 220. The second terminal 130, the third terminal 230 is a third connection terminal 140 and the fourth terminal 240 is pushed into the fourth connection terminal 150 to enter the elastic contact. In this case, the fifth connection terminal 160 is in contact with the end of the first terminal 210.

Therefore, the first to fourth terminals 210 to the plug 200 connected to the wire end of the earphone through the first to fifth connection terminals 120 to 160 of the main socket 100 mounted in the personal portable terminal and the mobile phone. The signal is transmitted to 240 so that the earphone can be used. At this time, the first terminal 210 is a microphone and the power, the second terminal 220 is a speaker, USB, data (+), the third terminal 230 is a speaker, USB, data (-) is transmitted, The fourth terminal 240 is used as a ground.

10 is a cross-sectional view showing a state in which a three-pole plug is inserted into the socket of the present invention.

When the 3-pole plug 300 is inserted into and connected to the socket 100, the first connection terminal 120 and the fifth connection terminal 160 are connected to the first terminal 310, and the second connection terminal 130 is connected. Is connected to the second terminal 320, the fourth connection terminal 150 is connected to the third terminal 330, each of the first, second, fourth, fifth connection terminals (120, 130, 150, 160) and physical The signals are transmitted to the first, second, and third terminals 310, 320, and 330 which are in contact with each other. However, as shown in the drawing, the third connection terminal 140 is connected to the insulating member 340 interposed between the second terminal 320 and the third terminal 330 of the plug 300 to insulate the two terminals. The connection end 146 is in line contact. Therefore, the signals of the personal portable terminal and the mobile phone output to the third connection terminal 140 are not transmitted to the plug 300, and at the same time, the signal from the earphone through the plug 300 is also input to the third connection terminal 140. Will not be.

As described above with reference to FIGS. 6 to 8, in the socket 100, when the four-pole plug 200 is connected, the third connection terminal 140 is physically in contact with the third terminal 230, and thus four sockets are connected. Since all the connection terminals of the socket 100 are connected to all the plug terminals, the socket 100 functions for four poles. On the other hand, when the three-pole plug 300 is connected, the third connection terminal 140 contacts the insulating member 340 between the second terminal 320 and the third terminal 330 and loses its function. As described above, three connection terminals are connected to three terminals, so that the socket 100 is used for three poles.

The embodiments disclosed herein are only presented by selecting the most preferred examples to help those skilled in the art from the various possible examples, the technical spirit of the present invention is not necessarily limited or limited only by this embodiment, the present invention Various changes and modifications are possible within the scope without departing from the spirit of the invention, as well as other equivalent embodiments.

As described above, the three-pole and four-pole earphone socket according to the present invention is installed in a personal mobile terminal and a mobile phone so that the three-pole and four-pole earphone plugs are selectively connected to transmit sound. The advantage is that all four-pole plugs can be accommodated. Therefore, any earphone can be easily connected and used in the personal portable terminal and mobile phone equipped with this socket. In addition, since the socket can be used for both the 3-pole and 4-pole plugs by a simple configuration, the compact structure can be reduced in weight and the manufacturing cost can be reduced.

Claims (5)

In the earphone socket mounted on the personal mobile terminal and the mobile phone and connected to the terminals of the earphone plug to mediate signal transmission between the personal mobile terminal and the mobile phone and the earphone, The insertion space is formed in the longitudinal direction from the entrance to the plug entry to accommodate the terminals, and the first and second mounting grooves are formed on opposite sides of the plug, and communicate the outside and the inside in the face portion located between the mounting grooves. A socket body in which at least one entry hole is drilled; A first connection terminal fixed to one side of the lower end of the socket body and having a connection end which enters into the socket body and is connected to a first terminal located at an end of the plug; A second connection terminal fixed to the other lower end of the socket body facing the first connection terminal, and having a connection end entered into the socket body to be connected to a second terminal of the plug; The socket is inserted into and fixed to the first mounting groove formed on one side of the upper end of the socket body, and is bent from the fixing portion to extend in close contact with a neighboring surface adjacent to the first mounting groove, the connection end of which is connected to the socket through the entry hole. A third connection terminal entered into the body and positioned to be in contact with a third terminal when the plug to be connected is four poles, and in contact with an insulating member between the second terminal and the third terminal when the plug is three poles; The second mounting groove is formed and fixed to the second mounting groove formed on the other side of the upper end of the socket body facing the third connecting terminal, the fixing portion is bent toward the surface portion where the entry hole is formed, the end is passed through the entry hole A fourth connection terminal which enters into the insertion space and is in contact with a fourth terminal when the plug is connected to a fourth pole, and is in contact with a third terminal when a third pole is connected; And Three-pole and four-pole earphone socket is fixed to the center of the lower end of the socket body including a fifth connection terminal in contact with the first terminal of the plug together with the first connection terminal. 2. The method of claim 1, wherein the entry hole comprises a first entrance hole having a larger diameter into which the third connection terminal enters, and a second entrance hole into which the fourth connection terminal enters into a small aperture extending from the first entrance hole. Three-pole and four-pole combined earphone socket, characterized in that. According to claim 1, The first and second mounting grooves are three poles and four characterized in that the grooves are formed in the side on both sides so that both ends of the third, fourth connection terminal can be fitted Pole earphone socket. 4. The third and fourth connection terminals of claim 3, wherein the third and fourth connection terminals are respectively fixed to the PCB and bent vertically at the fixing angle to enter the first and second mounting grooves so that both edges thereof are formed. 3, characterized in that the three poles consisting of a plate body that is inserted into the grooves formed on the side of the first mounting groove, and the connection end is bent toward the adjacent upper surface from the plate body portion into the insertion space through the entry hole And 4-pole earphone socket. The three-pole terminal according to claim 4, wherein the connecting end of the third connecting terminal is bent and protruded in a direction substantially perpendicular to the axis of the plug so as to be in line contact with the insulating member when the three-pole plug is connected. And 4-pole earphone socket.