KR101758285B1 - Portable sound equipment - Google Patents

Abstract

A body including an elastic portion and curved in a U-shape; An ear bud holder provided on the body; An ear bud detachably attached to the ear bud holder and including an acoustic output module for outputting sound; A main board disposed inside the main body and connected to the ear bud to control the sound output module; An acoustic cable connecting the earbud and the control unit; A rotation module located inside the main body in the direction of the end of the main body and wound around the outer periphery of the main board; A bridge covering one surface of the rotation module and coupled to the body; A flexible substrate disposed along the bridge and having one side connected to the main substrate; And a microphone coupled to the other side of the flexible substrate, wherein the ear bud minimizes the influence on surrounding components when the ear bud is housed in the ear bud holder and pulled out by the rotation module, and the earphone is wound on the rotation module without tangling It provides a structure that can be.

Description

[0001] PORTABLE SOUND EQUIPMENT [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a portable acoustic apparatus for receiving a sound signal from a terminal via wireless communication with a terminal and transmitting a control signal for controlling the terminal.

A sound device refers to a sound device that receives a sound signal from a terminal and transmits the sound information collected through the microphone to the terminal. Conventionally, a wired method has been used in which a terminal is connected to an earphone jack of a terminal to receive an acoustic signal. However, in view of mobility and ease of use, the demand for a wireless communication type portable acoustic device is increasing.

Portable audio equipment having a design considering portability such as a headphone type in which a user puts his / her head into a band shape so as to be portable to the user's body, an ear-type type and an ear-type type are being developed.

The earbud of the present invention minimizes the influence on peripheral components when the earbud holder is housed and pulled out of the earbud holder by the rotation module and the earbud holder and the earbud are wound on the rotary module without being tangled, The present invention is directed to a portable acoustic apparatus that can be used as a portable audio apparatus.

A body including an elastic portion and curved in a U-shape; An ear bud holder provided on the body; An ear bud detachably attached to the ear bud holder and including an acoustic output module for outputting sound; A main board disposed inside the main body and connected to the ear bud to control the sound output module; An acoustic cable connecting the earbud and the control unit; A rotation module located inside the main body in the direction of the end of the main body and wound around the outer periphery of the main board; A bridge covering one surface of the rotation module and coupled to the body; A flexible substrate disposed along the bridge and having one side connected to the main substrate; And a microphone coupled to the other side of the flexible substrate.

And a cable guide protruding toward the rotation module and spaced apart from a bottom surface of the rotation module by a predetermined distance. An acoustic cable wrapped around the rotation module may be positioned between the cable guide and the bottom surface.

The distance between the cable guide and the bottom surface may be 1-3 times the thickness of the acoustic cable.

And an antenna module coupled to the bridge and having one side connected to the main board and radiating a radio signal.

The flexible substrate may further include a switch module located on the other side and generating a pressed signal, and may further include a button that presses the switch module and is exposed to the outside of the housing.

A stopper that restricts rotation of the rotation module in a first direction and allows rotation in a second direction and that contacts the rotation module includes a SUS material; And an elastic spring for rotating the rotary module in a first direction so as to wind the acoustic cable on an outer surface of the rotary module. When the earbud is pulled apart from the earbud holder, the rotary module rotates in the first direction In a second direction opposite to the first direction.

And a storage button for separating the stopper from the rotation module to allow rotation of the rotation module in the first direction.

The earbud holder includes a horizontal portion; Further comprising a cable hole formed in the horizontal portion and through which the acoustic cable passes, the earbud being mounted with the acoustic output module and including a horizontal portion; And a cable holder protruded from the housing and coupled with the acoustic cable, wherein a first angle formed by the horizontal part of the cable hole and the earbud holder is a second angle formed by the cable holder of the earbud and the horizontal part of the earbud, As shown in FIG.

The earbud holder may be disposed on one side of the horizontal portion.

The pair of microphones can be arranged side by side.

The main body includes a lower housing having the rotation module and the main board coupled to each other and the earbud holder formed at an end thereof; And an upper housing coupled to an upper portion of the lower case to cover the rotation module and the main board, wherein the lower housing is formed in the earbud holder and has one side open and a closed side slit; And a holder cap covering the earbud holder and including a cable hole formed in a portion corresponding to the other side of the slit.

Effects of the portable acoustic apparatus according to the present invention will be described as follows.

The earbud minimizes the influence on peripheral components when the earbud is housed and drawn into the earbud holder by the rotation module, and the earphone can be wound around the rotary module without tangling.

There is an advantage that the user can easily carry the earbud by having the structure that the earbud can be housed in the earbud holder easily.

Further scope of applicability of the present invention will become apparent from the following detailed description. It should be understood, however, that the detailed description and specific examples, such as the preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art.

1 is a block diagram showing a configuration of a portable acoustic apparatus according to the present invention.
2 is a perspective view of a portable audio device according to an embodiment of the present invention, viewed from one direction.
3 is a view showing a process of manufacturing an elastic band of a portable acoustic apparatus according to an embodiment of the present invention.
4 is an exploded perspective view of a portable acoustic apparatus according to an embodiment of the present invention.
5 is a view showing an earbud and an earbud holder according to the present invention.
Figs. 6 and 7 are views for explaining an embodiment in which the ear bud of the present invention is coupled to the ear bud holder.
8 is a view showing a rotation module, a stopper and a storage button of the present invention.
FIG. 9 is an exploded perspective view illustrating the inside of a housing of a portable acoustic apparatus according to an embodiment of the present invention.
10 is an enlarged perspective view showing the arrangement of a bridge, a flexible substrate, and a rotation module of the present invention.
11 is a side view of the bridge and the rotating member of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

1 is a block diagram of a portable acoustic apparatus according to an embodiment of the present invention. The portable acoustic apparatus 200 includes a controller 250, a wireless communication unit 285, an acoustic output unit 240, a sensing unit 275, a microphone 260, a user input unit 270, and a power supply unit 290.

The sound output unit 240 is a device for outputting sound according to a sound signal. As a representative example, there is an ear bud 240 that transmits sound by being inserted into a user's ear.

The microphone 260 processes the external acoustic signal into electrical voice data. The processed voice data is transmitted to an external terminal or an external server through the wireless communication unit 285. The microphone 260 may be implemented with various noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The sensing unit 275 recognizes the state of the portable acoustic device 200 itself and its surroundings. The sensing unit 275 senses the brightness of the surroundings, the touch sensor that senses the touch input, and the inclination and position of the portable acoustic device A gyro sensor for detecting an ear bud 240, an earbud switch for detecting whether or not an ear bud 240 is positioned in the ear bud holder 225, and the like.

The user input unit 270 is an input unit for the user to control the portable acoustic device 200 and includes a call button 272, a button 273 for controlling the volume, a power button 271, and an acoustic cable 240, And a storage button 275 for storing the data into the storage unit 220.

The number of the user input units 270 may include only a call button 272 and a pair of volume control buttons 273 or may further include a play / stop button and a music order change button. Since the size of the portable audio device 200 is limited, and the user input unit 270 often inputs without looking directly at the user, if the number of buttons is large, it is difficult to distinguish the functions of the respective buttons. The number of times of pressing and the number of times the button is pressed, and the allowable input command by combining a plurality of buttons.

Since the portable audio equipment 200 maintains the wearing state of the user, the risk of loss is small, but a normal portable terminal may be lost. When the two user input units 270 are simultaneously pressed for a predetermined time, You can find the lost terminal by ringing an alarm.

Also, by activating the voice recording function of the terminal connected via Bluetooth, the voice collected through the microphone 260 of the portable acoustic device 200 can be stored in the terminal.

In the related art, only the functions related to the call or the functions related to the playback of the sound media can be controlled by the portable sound device. However, the portable sound device of the present invention has an expanded control range.

2 is a perspective view of the portable acoustic device 200 according to an embodiment of the present invention, viewed from one direction. 3 is a view showing a wearing state of the portable acoustic device 200 according to an embodiment of the present invention. The main body of the portable acoustic device 200 according to the present invention comprises an elastic band 210 and a housing 220 and forms a C-shaped curve as shown in FIG.

The elastic band 210 is a bar-shaped member bent in a curved shape and has elasticity. When the force is applied, the elastic band 210 is deformed within a predetermined range, and when the force is removed, the elastic band 210 returns to its original shape. The housing 220 is coupled to both ends of the elastic band 210 and is positioned at both ends of the C-shaped curve of the portable acoustic device 200. Various components such as a main board 281, a wireless communication unit 285, and a battery 291 retracting member 250 are inserted into the inside and the outside.

The C-shaped portable audio device 200 can be worn on the user's neck as shown in FIG. The elastic band 210 may be provided with a sensor 275 to detect whether the user wears the sensor. For example, a displacement sensor for detecting a change in curvature may be provided so that when the wearer wears the portable sound device 200, it can sense opening of the end of the portable sound device 200 as shown in FIG. In this case, since the curvature of the elastic band 210 changes gently, it can be determined that the user intends to use the portable acoustic device 200, and the power of the portable acoustic device 200 can be turned on or synchronized with the external terminal.

The curvature after the change of the curvature of the elastic band 210 in the displacement sensor can be taken into consideration in order to more accurately determine whether the user wears it or whether it is worn during carrying. When the curvature of the elastic band 210 is largely changed to the first size and then the curvature is fixed to a curvature of a second size that is gentler than that of the portable acoustic device 200, It is possible to judge that it is worn on.

In addition to the displacement sensor, a sensor such as a temperature sensor, a light sensor, or a heart sensor is provided on a wear surface of the wearer when the wearer worn the wearer's body, so that the temperature is in a person's body temperature range or brightness is darkened. The power of the portable audio-visual device 200 may be turned on, or the wireless communication unit 285 may be activated to synchronize with the external terminal.

Or a switch 278 that is pressed in a physical manner. When the switch 278 is turned on for a predetermined time or longer by pressing a protruding switch when the user wears the switch 278, the portable sound device 200 is powered on , And can synchronize with an external terminal.

The sensor 277 and the switch 278 may have a plurality of sensors, and the plurality of sensor 277 and the switch 278 may be combined to determine whether the sensor 277 is worn or not.

3 is a view illustrating a process of manufacturing the elastic band 210 of the portable acoustic device 200 according to an embodiment of the present invention. the shape memory alloy wire 211 and the signal line 212 are inserted into the polymer tube 214 having a pipe-like elasticity as shown in Fig. The shape memory alloy wire 211 provides a resilient force to restore the original shape even if a force is applied to the elastic band 210 in a state where the elastic band 210 is bent in a curvature maintaining the shape of Fig. The signal line 212 transmits and receives signals between the component mounted on the left housing 220 and the component mounted on the housing 220 on the right side. The polymer tube 214 holds the signal line 212 and the shape memory alloy wire 211 so as not to be separated from each other and is used for fixing a coupling bracket 215 to be described later.

Next, as shown in (b), the coupling bracket 215 is fitted to both ends of the polymer tube 214. The coupling bracket 215 is used for coupling the housing 220 to the elastic band 210 and a rigid plastic material having no elasticity can be used for stable coupling with the housing 220. [ The coupling bracket 215 may have a coupling hole / protrusion for coupling with the housing 220. The shape memory alloy wire 211 and the signal line 212 are exposed through the coupling bracket 215.

(b) is put into a mold, and an encapsulant covering a part of the polymer tube 214 and the coupling bracket 215 is formed by an insert injection method as shown in (c). When the band cover 216 is formed by the insert injection method, the shape memory alloy wire 211, the signal line 212 and the coupling bracket 215 are integrally formed to repeatedly change the shape of the elastic band 210, The durability is improved due to the widening or disassembling between the body 210 and the waterproof function, so that the sweat does not permeate in contact with the user's body.

The band cover 216 may be made of thermoplastic polyurethane. It can be manufactured by dissolving in heat, and when it hardens, it becomes oil-resistant, abrasion-resistant, rubber-like elastic material. The greater the overlapping interval of the coupling bracket 215 and the band cover 216, the greater the rigidity of the elastic band 210, and the deformation is not easily caused.

4 is an exploded perspective view of a portable acoustic device 200 according to an embodiment of the present invention.

The housing 220 coupled to both ends of the elastic band 210 includes an upper housing 220a and a lower housing 220b and a main board 281 is interposed between the upper housing 220a and the lower housing 220b. A wireless communication unit 285, a battery 291, a microphone 260, and a rotation module 250 are mounted.

The housing 220 is manufactured by injection molding a polymer material, for example, a plastic product having strength such as polystyrene can be used. It may partially include a release material such as metal, glass, or leather. The material of the housing 220 can be the same material as the binding bracket 215 and is different from the band cover 216.

The thermoplastic polyurethane (TPU) used in the band cover 216 is resilient and easily deformed. When the force is removed, the thermoplastic polyurethane (TPU) is restored to its original shape and the frictional coefficient of the surface is high.

The housing 220 may be formed of a rigid polystyrene (PS) material to protect the internal components and at the same time to coat the surface of the housing 220 with polyurethane so as to be in close contact with the user's body. When the polyurethane coating is applied to the surface of the housing 220, an integrated appearance of the portable acoustic device 200 can be formed, and both the elastic band 210 and the housing 220 are brought into close contact with the skin of the user, There is an advantage that it does not shake and it is comfortable.

Since the portable audio equipment 200 to be worn on the body is easily exposed to moisture such as sweat, the durability can be increased by adding a waterproof function. It is possible to form a rib that covers the gap between the upper housing 220a and the lower housing 220b or to prevent water from penetrating through the waterproof member. Even if a separate waterproof member is not interposed, if the polyurethane coating is applied, the upper housing 220a and the lower housing 220b can be closely contacted.

The main board 281 mounted in the housing 220 of the present invention includes a battery 291, a user input unit 270, an audio output unit 240, a wireless communication unit 285, a microphone 260, And the like. The components mounted on the housing 220 may be symmetrically provided on the housing 220 on both sides or may be provided with components provided only on one side thereof through the signal line 212 mounted on the elastic band 210. For example, when the wireless communication unit 285 is provided in the housing 220 on one side, the wireless communication unit 285 can output the sound signal through the earbuds 240 on both sides using the received acoustic signal.

The wireless communication unit 285 may be mounted on the main board 281 or formed on the surface of the housing 220 to transmit and receive signals to / from an external terminal. A control signal and an acoustic signal are received from an external terminal by synchronizing with an external terminal by using an external terminal and a local wireless communication method such as Bluetooth or input through a user input unit 270 or a microphone 260 of the portable audio- And transmits the received control command and sound signal to the external terminal.

The housing 220 may include a power button 271 for turning the power on / off, a button 272 for playing or talking, a direction key 273 for adjusting the sound, etc. Or may be used for the purpose of controlling to reproduce the music thereafter). The button may be a dome key that is physically pressed, or may be a touch key that senses a change in capacitance.

The position of the touch key is not limited, and the surface of the housing 220 can be variously used. When the touch key is implemented on the surface of the housing 220, the touch key position and function can be displayed using the LED on the surface of the housing 220 where the touch key is implemented. The earbud 240 is inserted into a user's ear to transmit sound and the earbud 240 is connected to the main board 281 through an acoustic cable 245. The main board 281 controls the ear bud 240 to control the sound output according to the acoustic signal.

6 and 7 illustrate an earbud 240 and an earbud holder 225 of the present invention for explaining aspects of coupling the earbud 240 to the earbud holder 225. FIG. FIG.

The housing 220 of the present invention has earbud holders 225 on both sides of which the earbuds 240 are seated. The earbud holder 225 may be formed at an end of the lower housing 220b so that the user is not exposed to the outside when the portable acoustic device 200 is worn.

The earbud holder 225 includes a recessed portion recessed corresponding to the shape of the earbud 240 and is connected to the earbud 240 through the cable hole 225a formed in the earbud holder 225, And the acoustic cable 245 connecting the speaker 281.

The earphone 240 is automatically engaged with the earbud holder 225 while the acoustic cable 245 is wound around the rotary member 250 by the elasticity of the rotary member mounted on the housing 220. [

The conventional earbud 240 is not correctly coupled to the earbud holder 225 but has a problem in that it is often connected in an oblique or inverse manner so that the user has to fix the earbud 240 again. The present invention improves the design of the earbud 240 and the earbud holder 225 so that the earbud 240 can engage the earbud holder 225 in place.

The earbud holder 225 is formed in a streamlined shape so that the earbud 240 is accommodated in the wrong position corresponding to the streamline even if the earbud 240 is coupled or slantedly coupled. And a horizontal portion 225c formed at a portion where the direction opposite to the direction in which the sound of the sound is output.

The earbud 240 also includes a horizontal portion 243 corresponding to the horizontal portion 225c of the earbud holder 225 so that the horizontal portion 243 of the earbud 240 and the horizontal portion 243 of the earbud holder 225 So that the ear bud 240 is received in the ear bud holder 225.

The cable hole 225a through which the acoustic cable 245 passes is located at one side of the horizontal portion 225c of the earbud holder 225. [ When the cable hole 225a is positioned at the center of the horizontal portion 225c, the earbud 240 can be inverted and engaged with the cable hole 225a. Therefore, the cable hole 225a is disposed at one side of the horizontal portion 225c, 243, the acoustic cable 245 is engaged at a position offset from the horizontal portion 243 at one side.

The cable holder 241 to which the earbud 240 and the acoustic cable 245 are connected is protruded from the earbud 240. The cable holder 241 includes an elastic member such as a rubber to prevent the acoustic cable 245 from being bent and broken. The cable holder 241 is inserted into the cable hole 225a of the ear bud holder 225. [

6, the first angle alpha between the horizontal portion 225c of the earbud holder 225 and the cable hole 225a is greater than the first angle alpha between the horizontal portion 243 of the earbud 240 and the cable hole 225a of the cable holder 241. [ Can be formed corresponding to the second angle beta. When the cable holder 241 is inserted into the cable hole 225a, the earbud 240 can be coupled to the earbud holder 225 at an accurate position when the first angle? And the second angle? .

It is possible to prevent the acoustic cable 245 from being rubbed while passing through the cable hole 225a if the angle of the normal to the horizontal portion 225c and the angle of the cable hole 225a is less than 45 degrees, It is preferable that the angle [beta] be larger than 45 [deg.].

7 shows a side view of the earbud holder 225 taken from the front and the side wall 225b of the earbud holder 225 surrounding the earbud 240 is shown to have a curvature corresponding to the peripheral curvature of the earbud 240, . The third angle? Between the side wall portion 225b of the earbud holder 225 and the cable hole 225a corresponds to a fourth angle? Between the side edge of the earbud 240 and the cable holder 241 Corresponding. When the third angle? And the fourth angle? Are larger than 90 degrees, the function of guiding the earbuds 240 to be in a correct position is deteriorated. When the third and fourth angles are smaller than 45 degrees, The shape of the earbuds 240 and the earbud holder 225 may be adjusted so as to have an angle of about 45 degrees with respect to the bird holder 225 and an intermediate angle of about 90 degrees with respect to the side wall portion 225b, You can design.

The side wall portion 225b of the horizontal portion 225c is elongated in the direction of the end of the main body so that the earbud 240 is received along the side wall portion 225b. 242) is housed in the side direction can be solved.

And a detachable ear cap 242 made of silicone or polyurethane to be closely inserted into the user's ear. The ear cap 242 can be replaced with a size suitable for a user when the user is changed, and is hygienic because the ear cap 242 can be replaced if it is dirty for a long time.

A magnetic material 226 such as a magnet and a metal is provided on the earbud 240 and the earbud holder 225 so that when the earbud 240 is adjacent to the earbud holder 225 using a magnetic force, (Not shown). And an earbud 240 sensor that senses whether the ear 240 is seated in the earbud holder 225. The user can control the portable acoustic device 200 depending on whether the user has removed the earbud 240 from the earbud holder 225 or the earbud 240.

For example, when only one earbud 240 is separated from the bud holder 225, the mobile terminal can activate the call function or activate the wireless communication unit 285 to synchronize with the external terminal. In addition, when both earbuds 240 are separated from the earbud holder 225, it is possible to activate functions related to the sound of the external terminal. When the earbud 240 is housed in the earbud holder 225, it can turn off the music to be reproduced or terminate the synchronization.

Since the portable audio-visual device 200 is worn on the user's neck, it is difficult to provide visual information, and the alarm can be provided to the user through the audio output unit 240 and the vibration motor. The user can be notified by providing a vibration or a beep when the power is turned on, synchronized with an external terminal, and when a notification such as receiving a call signal or receiving a message occurs.

The battery 291 may be mounted on both sides of the housing 220, may be mounted on only one side, and may include a charging terminal for charging the battery 291.

When the earbud 240 is housed in the ear bud holder 225, the acoustic cable 245 is wound around the rotating module 250 located inside the housing 220 and housed in the housing 220, 200 are not exposed to the outside. The rotation module 250 includes a fixed shaft fixed to the housing 220, a wheel that rotates about the fixed shaft and is wound around the acoustic cable 245, and a leaf spring that provides rotational force to the wheel .

The leaf spring provides a rotational force to rotate the rotation module 250 in the first direction. When the user pulls the acoustic cable 245, the rotary module 250 is rotated in the second direction opposite to the first direction so that the acoustic cable 245 is released from the rotary module 250 and exposed to the outside of the housing 220 .

8 is a view showing the rotation module 250, the stopper 255, and the storage button 275 of the present invention. And may further include a stopper 255 for preventing the rotation of the rotation module 250 in the first direction so as to allow the earbud 240 to be removed from the earbud holder 225 and remain usable by the user . Shaped projections 253 are formed on the outer side of the rotation module 250. One side of the projections 253 is a slope 253a and the other side is a step 253b.

When the rotation module 250 is rotated in the first direction, the step 253b of the projection 253 and the stopper 255 abut against each other and the rotation module 250 can not rotate and the rotation module 250 rotates in the second direction The hour stopper 255 moves along the inclined surface 253a of the projection 253 and does not restrict the rotation of the rotation module 250. [

That is, when the user pulls the acoustic cable 245, the rotation module 250 rotates in the second direction. However, when the force for pulling the acoustic cable 245 is removed, the stopper 255 is caught by the step 253b, Thereby limiting the rotation of the rotation module 250 in the direction of rotation.

At this time, since the portion 255b where the stopper 255 abuts against the projection 253 repeatedly rubs, members such as SUS (Steel Use Stainless) which is more durable than a synthetic resin such as PC (PolyCarbonate) can be used.

The stopper 255 moves in the radial direction of the rotation module 250 and the storage button 275 for controlling the movement of the stopper 255 is exposed to the outside. The storage button 275 is disposed in a vertical direction with respect to the stopper 255 and an inclined surface is formed at a position where the stopper 255 abuts against the storage button 275 to transmit the force of the storage button 275 to the stopper 255 do.

When the storage button 275 is pressed in the first direction, the inclined surface 275a of the storage button 275 moves along the inclined surface 255a formed on the stopper 255 and the stopper 255 is pushed in the second direction. The stopper 255 moves in the second direction and moves away from the rotation module 250 and rotates in the first direction by the leaf spring of the rotation module 250 so that the sound cable 245 is wound on the rotation module 250 and stored .

FIG. 9 is an exploded perspective view showing the internal structure of the housing 220 of the portable acoustic apparatus 200 according to the embodiment of the present invention, and FIG. 10 is a perspective view showing the bridge 230, Is an enlarged perspective view showing the arrangement of modules.

A main board 281, a rotation module 250, a bridge 230, a flexible board 282, a microphone 260 and an antenna module 285 are mounted inside the housing 220. 4, an opposing housing 220 is provided with a battery 291 instead of the main board 281, an auxiliary board for transmitting a signal of the user input unit 270 and an acoustic signal to the ear bud 240, 250 are mounted.

The rotary module 250 is repeatedly rotated in the first direction and the second direction by winding the acoustic cable 245 around the outer periphery. There is a problem that the rotation module 250 affects the peripheral device while rotating, or the sound cable 245 is wound around the rotation module 250 and hits the peripheral device. The rotation module 250 is disposed adjacent to the ear bud holder 225 because it is connected to the acoustic cable 245 so that the main board 281 is biased toward the elastic band as shown in FIG.

The position of the microphone 260 mounted on the main board 281 and the position of the user input unit 270 (button) are shifted toward the elastic band 210 as the main board 281 is located at the rear side. When the microphone 260 or the button is disposed on the side of the elastic band 210 rather than the end of the main body, there is a problem that it is inconvenient to use because the button or the sound output portion is located in the lateral direction rather than the front side on the basis of the user.

Accordingly, the present invention adds a bridge covering the rotation module 250 to minimize the influence of peripheral components due to the rotation of the rotation module 250. FIG.

The bridge 230 is bent as shown in FIG. 9 to form a space in a lower portion thereof, and the rotation module 250 is disposed in the space. Both end portions are fixed to the lower housing 220b so that the rotation module 250 is positioned below the bridge 230 and an electronic component such as a flexible substrate can be mounted on the bridge 230.

A flexible substrate 282 connected to the main substrate 281 is required for positioning the microphone 260 and the button on the end of the main body. The flexible substrate 282 is connected to the main body 281 of the bridge 230 Is located on the upper surface. One end is connected to the main board 281 and the other end is connected to the microphone 260.

The microphone 260 of the present invention receives sound through the two holes 261, and can collect sounds that are uniform regardless of the face position of the user and minimize noise around the user. The closer the microphone 260 is to the user's mouth, the more accurately the user's voice can be recognized. Therefore, the microphone 260 can be disposed in the direction of the end of the main body as much as possible to be adjacent to the earbud holder 225.

The flexible substrate 282 transmits signals of the user input unit 270 located at the end of the body as well as the microphone 260 to the main board 281. The user can conveniently place the button on the end of the main body by using the flexible board 282 because the user's input unit 270 is located in front of the user when it is worn.

In this way, The microphone 260 disposed at the position can accurately catch the voice of the user so that it can talk in a quiet environment such as an office or a library, and also in a clean environment even in an environment with a high ambient noise such as a commuting subway.

Also, the antenna module 285 can be disposed on the upper surface of the bridge 230. The antenna module 285 may be formed by forming a conductive pattern on a flexible insulating film and may be connected to the main substrate 281 to transmit and receive radio signals.

The acoustic cable 245 connected to the rotation module 250 is connected to the earbud 240 through a cable hole 225a formed in the earbud holder 225. [ It is necessary to cut the cable at the time of repairing the cable if the cable hole 225a is directly formed in the lower housing 220b. However, since the slit 221 is formed in the portion of the bird holder 225 after the lower housing 220b, To pass through the acoustic cable 245.

One end of the slit 221 is opened and the other end of the slit 221 is disposed at a position corresponding to the position of the cable hole 225a. The holder cap 226 may be covered with the earbud holder 225 so that the slit 221 is not visible. By forming the slit 221 as described above, the rotation module 250, the acoustic cable 245, and the ear bud 240 can be easily separated, thereby facilitating maintenance.

11 is a side view of the bridge and the rotating member of the present invention.

The lower part of the bridge 230 forms a space in a trapezoid shape to cover the rotation module 250. At this time, the cable guide 231 may be formed to protrude so that the distance from the outer circumference of the rotation module 250 is constant, thereby guiding the acoustic cable 245 wound around the rotation module 250 to be wound uniformly .

In order to solve the problem that the acoustic cable 245 is twisted inside the housing 220 and the rotary module 250 stops and the acoustic cable 245 does not come out of the housing 220, The cable guide 231 protruding toward the rotation module 250 can be formed.

The cable guide 231 protrudes from the lower portion of the bridge 230 so as to be positioned adjacent to the rotation module 250 and the gap between the bottom surface 255 on which the rotation module 250 is mounted and the cable guide 231 And a space is formed between the floor surface 255 spaced apart and the cable guide 231.

That is, the cable guide 231 is located near the upper part of the rotation module 250 and the distance between the rotation module 250 and the cable guide 231 is not close but is smaller than the thickness of the acoustic cable so that the acoustic cable 245 And can not be wound on the upper portion of the rotation module 250. That is, the acoustic cable 245 is wound only at the lower portion of the D, and the acoustic cable 245 is piled in the outward direction from the center of the roughly curved rotary module as shown in FIG. 11, so that the acoustic cable 245 tangles .

The acoustic cable 245 is wrapped in the space between the bottom surface 255 and the cable guide 231 and the cable guide 245 is wound at a distance such that one to three acoustic cables 245 are positioned so that the acoustic cable 245 is not twisted. (231) is disposed apart from the bottom surface (255).

At least one cable guide 231 can be disposed, and if too much is arranged, a frictional force is generated to limit the rotational force of the rotation module 250 and damage the acoustic cable 245, so that the number of cables needs to be adjusted. In this embodiment, four sets are also arranged.

As described above, the portable audio device 200 of the present invention minimizes the influence of peripheral components on the ear bud when the ear bud is housed and drawn into the ear bud holder by the rotation module, and the earphone can be wound on the rotary module without tangling Structure.

There is an advantage that the user can easily carry the earbud by having the structure that the earbud can be housed in the earbud holder easily.

The foregoing detailed description should not be construed in all aspects as limiting and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

200: portable audio device 210: elastic band
211: shape memory alloy wire 212: signal line
214: polymer tube 215: coupling bracket
216: band cover 220: housing
220a: upper housing 220b: lower housing
225: Earbud holder 225a: Cable hole
226: holder cap 230: bridge
240: Audio output unit 245: Audio cable
250: rotation module 260: microphone
270: user input unit 275: sensing unit
280: control unit 281: main board
282: Flexible board 285: Wireless communication unit
290: Power supply unit 291: Battery

Claims (11)

A body including an elastic portion and curved in a U-shape;
An ear bud holder provided on the body;
An ear bud detachably attached to the ear bud holder and including an acoustic output module for outputting sound;
A main board disposed inside the main body and connected to the ear bud to control the sound output module;
An acoustic cable connecting the earbud to the main board;
A rotation module located inside the main body in the direction of the end of the main body and wound around the outer periphery of the main board;
A bridge covering one surface of the rotation module and coupled to the body;
A flexible substrate disposed along the bridge and having one side connected to the main substrate; And
And a microphone coupled to the other side of the flexible substrate,
The bridge
And a cable guide protruding toward the rotation module and spaced apart from a bottom surface of the rotation module by a predetermined distance,
Wherein an acoustic cable wrapped around the rotating module is positioned between the cable guide and the bottom surface. delete The method according to claim 1,
Wherein the distance between the cable guide and the bottom surface is 1-3 times the thickness of the acoustic cable. The method according to claim 1,
Further comprising an antenna module coupled to the bridge and having one side radiating a radio signal coupled to the main board. The method according to claim 1,
A stopper that restricts rotation of the rotation module in a first direction and allows rotation in a second direction and that contacts the rotation module includes a SUS material; And
And an elastic spring for rotating the rotary module in a first direction so as to wind the acoustic cable on an outer surface of the rotary module,
Wherein the rotary module is rotated in a second direction opposite to the first direction when the earbud is pulled apart from the earbud holder. 6. The method of claim 5,
Further comprising a storage button for separating the stopper from the rotation module to allow rotation of the rotation module in the first direction. The method according to claim 1,
The earbud holder
Horizontal part;
And a cable hole formed in the horizontal portion and through which the acoustic cable penetrates,
The ear bud
A housing having the sound output module mounted therein and having a horizontal portion on one side thereof; And
A cable holder protruding from the housing and coupled with the acoustic cable,
Wherein the first angle formed by the horizontal portion of the cable hole and the earbud holder corresponds to the second angle formed by the cable holder of the earbud and the horizontal portion of the earbud. 8. The method of claim 7,
The earbud holder
Wherein the first and second sound sources are disposed to be offset from one side of the horizontal portion. The method according to claim 1,
And the pair of microphones are arranged side by side. The method according to claim 1,
The body
A lower housing coupled to the rotation module and the main board and having an ear bud holder at an end thereof; And
And an upper housing coupled to an upper portion of the lower housing to cover the rotation module and the main board,
The lower housing
The earbud holder being formed with one side open and the other side clogged; And
And a holder cap covering the earbud holder and including a cable hole formed in a portion corresponding to the other side of the slit. The method according to claim 1,
The flexible substrate further includes a switch module located on the other side and generating a pressed signal,
Further comprising a button that is pressed to the switch module and is exposed to the outside of the upper housing.

Images