KR20180024235A - Portable sound equipment - Google Patents

Abstract

The present invention provides a portable sound device which solves a problem that the weight of the portable sound device is concentrated on a part of the neck of a user due to an increase in weight, and solves a problem of a howling phenomenon occurs in performing call transmitting/receiving functions by using a speaker. To this end, the portable sound device comprises: a neck band wire surrounding at least one region of the neck of a user; a main body including a first body and a second body respectively coupled to both ends of the neck band wire; a microphone for receiving a sound signal through a microphone hole provided in the first body; a speaker module mounted on the second body, and outputting a sound; and a sound guide hole formed on the second body, and provided to be located far from the microphone.

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 transmitting / receiving a sound signal to / from a terminal through wired or wireless communication and transmitting a control signal for controlling the terminal according to a signal input through a user input unit.

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.

Particularly, there is an increasing tendency of a portable acoustic apparatus in the form of a neckband which can be hung on the user's neck. When the portable acoustic apparatus of the neck band shape is not used, the ear bud can be stored in a portable acoustic apparatus of a neck band shape, and the load is less burdened on the shoulder or collarbone side of the user than on the ear or head.

Therefore, it is possible to bear the weight to a certain level, so that the capacity of the battery can be increased to a certain level.

However, when the load of the main body that mounts the component is applied, the neckband wire area is not stably fixed to the user's neck but floats in the air, and the force of pulling the neck is applied to the neck.

Therefore, it is necessary that the portable acoustic apparatus is placed evenly on the neck and collarbone of the user to act as a dispersed load.

In addition, the portable audio apparatus can perform not only the output of a specific sound but also the input of a sound signal, and furthermore, a call / reception function with another party. In the case of performing the call / reception function, the other party's voice can be heard using the earbud, or it can be heard using the built-in speaker. When the other party's voice is heard by using the speaker, the sound output from the speaker may unintentionally flow back into the microphones, and a soaring phenomenon may occur that the signal is repeatedly sounded.

It is an object of the present invention to solve the above-mentioned problem that a portable acoustic apparatus is subjected to a heavy load on a part of a neck of a user due to an increase in weight.

Another object of the present invention is to solve the problem of howling phenomenon occurs in performing a call / reception function using a speaker.

According to an aspect of the present invention, there is provided a method of connecting a neckband wire to a neckband wire, the neckband wire including a neckband wire surrounding at least one region of a user's neck, a first body coupled to both ends of the neckband wire, A speaker module for outputting sound by being mounted on the second body; and a speaker module mounted on the second body, wherein the speaker module is disposed on the far side of the microphone, And a sound guide hole.

According to another aspect of the present invention, the first body is provided in a bar shape extending in a first direction, and the acoustic guide hole includes a slit shape provided in the first direction. Thereby providing a portable sound device.

According to another aspect of the present invention, there is provided a portable audio apparatus, wherein the portable audio apparatus is further provided with a guide step portion formed on the inner side of the sound guide hole and having a width larger than a width of the sound guide hole.

According to another aspect of the present invention, there is provided a portable audio apparatus, wherein the microphone is biased toward the front of the first body, and the acoustic guide hole is biased toward the rear of the second body.

According to another aspect of the present invention, the microphone hole includes a first microphone hole provided on an upper surface of the first body and a second microphone hole provided on an outer surface of the first body, And a control unit for removing a sound signal input through the second microphone hole from the sound signal input through the microphone hole to form a filtered user voice signal.

According to another aspect of the present invention, there is provided a speaker module including a module housing including an output hole, a resonance part forming a resonance space inside the module housing, and a resonance part coupled to the resonance part boundary, And an extension plate which forms an area.

According to another aspect of the present invention, there is provided a portable audio apparatus, further comprising a duct hole formed in the speaker module and a mesh sheet coupled to the duct hole.

In addition, according to another aspect of the present invention, the neck band wire includes a seating part forming a specific angle inclination in a lower direction with respect to the main body, and a connecting part connecting the seating part and the main body. And a portable acoustic apparatus.

According to another aspect of the present invention, there is provided a portable acoustic apparatus, wherein the connecting portion forms a curved portion.

According to another aspect of the present invention, the main body includes an upper case and a lower case, and the neck band wire is provided at both ends to be coupled between the upper case and the lower case of the main body, And a fastening part to be fixed to the base part.

According to another aspect of the present invention, the neck band wire includes a frame wire including a shape memory alloy, a wire tube surrounding the frame wire, and a fastening case coupled to both ends of the wire tube, And the frame wire, the wire tube, and the fastening case are fixed by being double-injected inside the fastening case.

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

According to at least one of the embodiments of the present invention, there is an advantage that the phenomenon of howling can be minimized.

In addition, according to at least one of the embodiments of the present invention, there is an advantage that surrounding noise can be removed during a call / reception.

Also, according to at least one of the embodiments of the present invention, there is an advantage that the resonance space for sounding can be maximized.

Also, according to at least one of the embodiments of the present invention, there is an advantage that excessive bass regions can be minimized.

Also, according to at least one of the embodiments of the present invention, there is an advantage that the portable sound device can be stably worn by the user.

In addition, according to at least one of the embodiments of the present invention, the neckband wire and the main body can be prevented from being twisted or pulled out to enhance durability.

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 embodiment 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 for explaining a portable acoustic apparatus according to the present invention.
2 is a perspective view of a portable acoustic apparatus according to the present invention.
3 is an exploded perspective view of a portable acoustic apparatus according to the present invention.
4 shows a part of a portable acoustic apparatus according to the present invention.
Fig. 5 (a) shows the side of the first body, and Fig. 5 (b) shows the side of the second body.
6 is a view of a user wearing a portable acoustic apparatus according to the present invention.
7 is a side view of a portable acoustic apparatus according to the present invention.
8 is a top view of a portable acoustic apparatus according to the present invention.
9 is an exploded perspective view of a neck band wire.
10 is a partially exploded perspective view of a portable acoustic apparatus according to the present invention.
11 shows an embodiment of a portable acoustic apparatus according to the present invention.
12 is an exploded perspective view of a second body according to the present invention.
13 is a partial cross-sectional view of a portable acoustic apparatus according to the present invention.
14 is a rear view of a speaker module related to the present invention.
15 is a cross-sectional view taken along the line AA 'in Fig.

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.

1 is a block diagram for explaining a portable acoustic apparatus 100 according to the present invention.

The portable audio device 100 includes a wireless communication unit 110, an input unit 120, a sensing unit 130, an output unit 140, an interface unit 150, a control unit 160, and a power supply unit 170 can do.

The components shown in Fig. 1 are not essential in implementing a portable acoustic apparatus, so that the portable acoustic apparatus described in this specification can have more or fewer components than those listed above.

The wireless communication unit 110 may be connected between the portable audio player 100 and the wireless communication system or between the portable audio player 100 and another portable terminal or between the portable audio player 100 and the external server Lt; RTI ID = 0.0 > wireless < / RTI > In addition, the wireless communication unit 110 may include one or more modules for connecting the portable audio-visual device 100 to one or more networks.

The wireless communication unit 110 may include at least one of a local communication module 111 and a location information module 112. Or may include a mobile communication module or a wireless Internet module as needed.

The short-range communication module 111 is for short-range communication, and includes Bluetooth ™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, NFC (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technology.

The short-range communication module 111 is connected to the portable acoustic device 100 and the wireless communication system through the wireless area networks, between the portable acoustic device 100 and another mobile terminal, or between the portable acoustic device 100 ) And a network in which another mobile terminal (or an external server) is located. The short-range wireless communication network may be a short-range wireless personal area network.

The short-range communication module 111 may detect (or recognize) a terminal or the like capable of communicating around the portable acoustic device 100. If the detected terminal is a device authenticated to communicate with the portable acoustic device 100 according to the present invention, the control unit 160 may transmit at least part of the data processed by the mobile terminal to the local communication module 111 through the local communication module 111 Can be received. Therefore, the user of the portable audio-visual device 100 can use the data processed by the terminal through the wearable device.

For example, according to this, the user can perform a telephone conversation through the portable acoustic device 100 when a telephone is received in the terminal or the like.

The position information module 112 is a module for obtaining the position (or the current position) of the portable acoustic device 100, and representative examples thereof include a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module. For example, when the mobile terminal utilizes the GPS module, it can acquire the position of the portable acoustic device 100 using a signal transmitted from the GPS satellite. As another example, the portable audio-visual device 100 may utilize a Wi-Fi module to provide a portable audio device 100 with a Wi-Fi module, based on information of a wireless access point (AP) Can be obtained. Optionally, the location information module 112 may substitute or additionally perform any of the other modules of the wireless communication unit 110 to obtain data relating to the location of the portable acoustic device 100. The location information module 115 is a module used to obtain the location (or current location) of the portable acoustic device 100 and is not limited to a module that directly calculates or obtains the location of the portable acoustic device 100 .

The input unit 120 includes a microphone (MIC) 121 for inputting audio signals or an audio input unit, a user input unit 122 for receiving information from a user, for example, a touch key, key, etc.). The voice data or image data collected by the input unit 120 may be analyzed and processed by a user's control command.

The user input unit 122 is a unit for controlling the portable audio device 100 by a user. The user input unit 122 may include a call button, a button for volume control, a power button, and a storage button for storing the audio cable into the main body. .

The user input unit 122 may include a call button, a pair of volume control buttons, and may further include a play / stop button and a music order change button.

Since the size of the portable audio-visual device 100 is limited, and the user input unit 122 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. And a control command that can be input by combining a plurality of buttons may be enlarged.

The microphone 121 processes the external acoustic signal into electrical voice data. The processed voice data may be utilized according to a function (or a running application program) being executed in the portable acoustic device 100, or may be transmitted to an external terminal or an external server through the wireless communication unit 110. Meanwhile, the microphone 122 may be implemented with various noise reduction algorithms for eliminating noise generated in the process of receiving an external sound signal.

The sensing unit 130 may include at least one sensor for sensing at least one of information in a portable audio player, surrounding information surrounding the portable audio player, and user information. For example, the sensing unit 130 may include a proximity sensor 131, an illumination sensor 132, a touch sensor, an acceleration sensor, a magnetic sensor, A G-sensor, a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor, a finger scan sensor, an ultrasonic sensor, An optical sensor, a microphone (see 121), a battery gauge, an environmental sensor (for example, a barometer, a hygrometer, a thermometer, a radiation sensor, a heat sensor, A chemical sensor (e. G., An electronic nose, a healthcare sensor, a biometric sensor, etc.). Meanwhile, the portable sound device disclosed in the present specification can combine and use information sensed by at least two of the sensors.

In particular, it may include a sensor for detecting whether or not an earphone, which will be described later, is located in the holder, and the magnetic sensor and the like may be typically applied to such a sensor.

The output unit 140 may include at least one of an acoustic output unit 141, a haptic module 142, and a light output unit 143 to generate an output related to a visual, auditory or tactile sense.

The sound output unit 141 is a device for outputting sound according to a sound signal. As a typical example, there may be an earphone for transmitting sound through a user's ear and a speaker for outputting sound without an earphone.

The interface unit 150 serves as a channel with various kinds of external devices connected to the portable acoustic device 100. The interface unit 150 may include at least one of an external charger port and a wired / wireless data port. In the portable audio-visual device 100, corresponding to the connection of the external device to the interface unit 150, it is possible to perform appropriate control related to the connected external device.

In addition to the operations associated with the application program, the control unit 160 typically controls the overall operation of the portable audio-visual device 100. The controller 160 may process signals, data, information, and the like that are input or output through the above-described components.

The power supply unit 170 receives external power and internal power under the control of the controller 160 and supplies power to the components included in the portable audio player 100. The power supply unit 170 includes a battery, which may be an internal battery or a replaceable battery.

At least some of the components may operate in cooperation with one another to implement a method of operating, controlling, or controlling a portable acoustic device according to various embodiments described below.

FIG. 2 is a perspective view of a portable acoustic apparatus 100 according to the present invention, and FIG. 3 is an exploded perspective view of a portable acoustic apparatus 100 according to the present invention.

The portable audio-visual device 100 may largely include the configuration of the neck band wire 210 and the main body 220. [ The neckband wire 210 may wrap around the neck area of the user and the portable acoustic device 100 may be mounted on the user's neck.

The main body 220 and the neck band wire 210 can be combined to form a U-shape, or both ends can be optionally detached to form an 'O' shape.

The main body 220 can be coupled to both ends of the neck backing wire, respectively. The main body 220 may be divided into a first body 220a coupled to one end of the neckband wire 210 and a second body 220b coupled to the other end of the neckband wire 210. [

The main body 220 may be integrally formed, but may be provided in a form of a combination of an upper case 2201 and a lower case 2202 for the purpose of component mounting. The side case 2203 may be coupled to a side surface of the upper case 2201 and the lower case 2202 to form a side surface of the main body 220.

Since the portable audio-visual device 100 is easily exposed to moisture such as sweat, it can have a waterproof function. It is possible to form a rib that covers the gap between the upper case 2201 and the lower case 2202 or to prevent water from penetrating through the waterproof member.

The main body 220 may be manufactured by injection molding a polymer material. For example, a plastic product having strength such as polystyrene (PS) can be used. However, it may be partially composed of a release material including metal, glass, leather, and the like.

The main body 220 may be coated with a polyurethane coating on the surface of the main body 220 so that the main body 220 protects internal components and is in close contact with the user's body. When the polyurethane coating is applied to the surface of the main body 220, a unified appearance of the portable acoustic device 100 can be formed. The main body 220 is brought into close contact with the user's skin, There are advantages.

The main body 220 can mount most parts capable of performing the functions of the portable acoustic device 100 of the present invention. For example, various components such as the main board, the wireless communication unit, the battery and the collection module 284 may be inserted into the main body 220.

The main board includes a wireless communication unit, a microphone 270, and the like, and is connected to a battery, a user input unit, and an audio output unit. The components mounted on the main body 220 may be symmetrically provided on both sides of the body, that is, the first body 220a and the second body 220b, or may be provided on only one side.

The neck band wire 210 is elastically deformed when it is applied with a force, and can be restored to its original shape when the force is removed. There may be a shape memory alloy in a representative form having elastic properties.

Fig. 4 shows a part of a portable acoustic apparatus 100 according to the present invention.

The ear bud 281 is inserted into a user's ear to transmit sound, and the ear bud 281 is connected to the main board through an acoustic cable 285.

The main body 220 of the present invention has a holder 282 on both sides of which an earbud 281 is seated. The holder 282 may be formed at an end of the lower case 2202 so that the user is not exposed to the outside when the portable acoustic device 100 is worn.

The holder 282 includes a recessed portion recessed corresponding to the shape of the earbud 281. The holder 282 has an acoustic portion for connecting the earbud 281 to the main board through a cable hole 283 formed in the holder 282, Cable 285 can pass.

The ear bud 281 can be automatically seated in the holder 282 while the acoustic cable 285 is wound around the collection module 284 by the elasticity of the rotating member mounted on the main body 220. [

The inside of the holder 282 and the earbud 281 may be provided with magnetic portions that generate attraction force with each other so that the earbud 281 stably seats and engages with the holder 282. [

5 (a) is a side view of the first body 220a, and Fig. 5 (b) is a side view of the second body 220b.

The main body 220 is provided with a user input part 122 for receiving input of a user interface and an input / output port 226 as an interface part 150 for sending / receiving an electric signal to / from an external device .

A power button 224 for turning on / off the power, a button 221 for playing / stopping the music or receiving an incoming call, a button 222 for adjusting the volume, a button 223 for selecting a reproduced music, and the like .

In addition, when the sound output as the present invention can be selected by the ear bud 281 or the speaker 230, an output path selection button 225 for selecting the ear bud 281 or the speaker 230 may be additionally provided.

The button may be a dome key that is physically pressed, or may be a touch key that senses a change in capacitance.

Or may be provided in the form of a toggle button for sliding in one direction, which is different from the button of the depressed type.

FIG. 6 is a view of a user wearing the portable acoustic device 100 according to the present invention, and FIG. 7 is a side view of the portable acoustic device 100 related to the present invention.

For convenience of description, when the portable acoustic device 100 is worn, the direction of the portable acoustic device 100 is defined corresponding to the vertical direction of the user.

The specific shapes of the first body 220a and the second body 220b may vary depending on the mounting type and type of internal parts. In particular, the first body 220a and the second body 220b may be provided in a bar shape extending to the lower front end.

The first body 220a and the second body 220b that are seated in the vicinity of the collarbone of the user are inclined toward the front lower end.

In particular, the first body 220a may extend in a first direction and the second body 220b may extend in a second direction. The first direction and the second direction may be included in a plane in the front lower end direction of the portable acoustic device 100 as described above.

The neck band wire 210 may be bent at a specific angle A with respect to the first body 220a and the second body 220b.

In a portable audio apparatus capable of selectively outputting sound using the speaker module 260 and the ear bud 281, the main body 220 is relatively lowered in the downward direction due to an increase in the weight of components mounted on the main body 220, The area of the lightweight neckband wire 210 can be raised. Therefore, a structure is required in which the portable acoustic device 100 can be stably mounted on the entire neck of the user.

When the first body 220a and the second body 220b are seated on the collarbone of the user and are inclined forward and downward while the portable acoustic device 100 is worn by the user, the neckband wire 210 is parallel to the ground So as to surround the neckline of the user.

When the neckband wire 210 is provided so as to surround the neckline of the user, it is possible to prevent the load from concentrating on the clavicle area.

That is, the neck band wire 210 and the main body 220 apply a uniform load to the entire region of the user's neck and collarbone, thereby minimizing the fatigue felt by the user.

In addition, since the neck band wire 210 can be rolled up in the shortest distance without obliquely sensing the neck of the user, it is provided in a short length, which enables downsizing of the portable audio-visual device 100.

More specifically, the seating portion 2102, which is an area directly attached to the user's neck in the neckband wire 210, forms an A-angle inclination in the lower direction with respect to the main body, And the main body 220. The connection part 2101 may be formed in a curved shape that naturally connects the seating part 2102 and the main body 220. [

8 is a top view of a portable acoustic device 100 according to the present invention.

The neckband wire 210 may include a shape bent at a certain angle with respect to the upper surface of the portable audio-visual device 100 as well as the side surface as shown in FIG. The seat 2102 is formed gently along the circumference of the user's neck but is folded steeply at a predetermined angle at the connecting portion 2101 so that the main body 220 does not extend beyond a certain angle and can be appropriately seated on the collarbone of the user. Lt; / RTI >

9 is an exploded perspective view of the neck band wire 210. FIG.

The frame wire 213 serves to maintain the overall rigidity of the neckband wire 210. The frame wire 213 may comprise a shape memory alloy.

Particularly, the frame wire 213 corresponding to the connection portion 2101 can be processed using a three-dimensional shape memory alloy processing technique.

The conductive cable 211 may serve to electrically connect electronic components provided in the first body 220a and the second body 220b, respectively.

The wire tube 212 may serve to protect the frame wire 213 and the conductive cable 211 from the outside by mounting the frame wire 213 and the conductive cable 211.

A process of manufacturing the neck band wire 210 will be described. First, the frame wire 213 and the conductive cable 211 are inserted into the wire tube 212. The fastening case 214 is engaged with both the frame wire 213 and the wire tube 212 into which the conductive cable 211 is inserted. At this time, the wire tube 212 can be engaged with the fastening case 214.

The fastening part 240 can be engaged with the frame wire 213 and the conductive cable 211 while filling the inside of the fastening case 214.

The fastening part 240 may be injected into the fastening case 214 in a double injection manner, in particular, an insert injection method so as to be combined with the fastening case 214.

The fastening part 240 formed by the double injection can fix the frame wire 213, the conductive cable 211, the wire tube 212 and the fastening case 214 to each other.

The neckband wire 210 integrally formed by the fastening part 240 can improve the sense of unity of design and improve the durability.

The wire tube 212 may be made of thermoplastic polyurethane. It can be made by dissolving in heat. When hardened, it has oil resistance and abrasion resistance and can be made elastic material such as rubber.

The wire tube 212 may be an area that directly contacts the user ' s neck. Therefore, the wire tube 212 has a high coefficient of friction on the surface, so that it can be prevented from slipping easily by coming into contact with the user's body.

10 is a partially exploded perspective view of a portable acoustic device 100 according to the present invention.

The fastening portions 240 formed at both ends of the neck band wire 210 are fastened to the main body 220. The fastening part 240 fixes the neck band wire 210 so as not to be separated from the main body 220.

The fastening portion 240 can be seated in the lower case 2202. The fastening holes of the fastening part 240 can be fitted to the projecting parts 251 of the lower case 2202 to be seated.

The upper case 2201 can be fitted and coupled to the fastening part 240 that is seated in the lower case 2202. The coupling of the lower case 2202, the coupling part 240 and the upper case 2201 can be fixed with a screw.

The engaging portion 252 of the lower case 2202 may be fitted and engaged along the guide hole 2402 of the fastening portion 240 in addition to the fastening hole and the protrusion 251. The coupling between the fastening hole and the projection 251 and the double coupling between the guide hole 2402 and the fastening part 252 can stably fix the neck band wire 210 and the main body 220.

The coupling structure of the coupling part 240 and the main body 220 prevents the neck band wire 210 from rotating unintentionally or flowing in the longitudinal direction with respect to the main body 220.

The fastening portion 240 is seated in the upper case 2201 and the lower case 2202 is then inserted into the upper case 2201. In this case, 2201 < / RTI >

11 illustrates an embodiment of a portable acoustic device 100 in accordance with the present invention.

The portable acoustic device 100 may include a speaker module 260. The portable acoustic device 100 may selectively output sound through the speaker module 260 or a separate ear bud 281. [

The microphone 270 may be provided in the first body 220a to input external sounds. A microphone hole 271 may be formed in the first body 220a to provide a path for external sound to reach the microphone 270. [

A plurality of microphone holes 271 may be provided. In particular, the microphone hole 271 may include a first microphone hole 271a and a second microphone hole 271b.

The first microphone hole 271a mainly serves to input the user's voice and the second microphone hole 271b mainly serves to input ambient noise.

A plurality of microphones corresponding to the first microphone hole 271a and the second microphone hole 271b may be provided or one microphone may be provided to distinguish the acoustic signals inputted through the respective microphone holes. An algorithm for removing an external noise, that is, an acoustic signal input through the second microphone hole 271b from a user's voice signal input through the first microphone hole 271a, .

The first microphone hole 271a may be provided on the upper surface of the first body 220a and the second microphone hole 271b may be provided on the side surface of the first body 220a. That is, the upper surface of the first body 220a is close to the user's mouth when the user wears the portable acoustic device 100, and the external noise can be effectively input to the side surface of the first body 220a.

The speaker module 260 or the ear bud 281 may function as an acoustic output of the portable acoustic device 100 and the microphone 270 may function as an earset of the portable acoustic device 100 as a whole.

An example of a role of an earset is a call function. The user can make a call through the earbud 281 and the microphone 270 by wearing the earbud 281 or can make a call through the speaker module 260 and the microphone 270 without wearing the earbud 281 Can be performed.

In a state in which the ear bud 281 is worn, only the wearer of the ear bud 281 can hear the output sound. In the case of using the speaker module 260 without wearing the ear bud 281, It can come out openly.

There is a fear that a howling phenomenon in which the sound output from the speaker module 260 flows back into the microphone 270 may occur in the speaker 230 mode in which the speaker module 260 performs a function such as a call.

The arrangement of the speaker module 260 and the microphone 270 can minimize the hauling phenomenon.

One way to do this is to provide the microphone 270 and the speaker module 260 in different bodies. That is, the distance between the microphone 270 and the speaker module 260 can be maximized by mounting the microphone 270 on the first body 220a and the speaker module 260 on the second body 220b.

Particularly, the microphone 270 is biased toward the front of the first body 220a, and the speaker module 260 is biased toward the rear of the second body 220b to maximize the distance therebetween.

The speaker module 260 is positioned at a position as close as possible to the ear while the user wears the portable acoustic device 100 and the microphone 270 is positioned at a position as close as possible to the mouth while the user wears the portable acoustic device 100. [ As shown in FIG.

12 is an exploded perspective view of the second body 220b related to the present invention.

The speaker module 260 may function as an independent module mounted on the second body 220b to output sound.

The sound guide hole 291 may guide the sound outputted from the speaker module 260 to the outside of the second body 220b.

Since the acoustic guide hole 291 is positioned to correspond to the position of the speaker module 260, the positional characteristic of the acoustic guide hole 291 in the second body 220b is determined by the position of the speaker module 260 The same can be applied.

13 is a partial cross-sectional view of a portable acoustic apparatus 100 according to the present invention.

The acoustic guide hole 291 may be provided on the second body 220b so as to be located away from the microphone 270 of the first body 220a.

That is, the acoustic guide holes 291 may be offset from the upper surface area of the main body 200 in the lateral direction of the portable acoustic device 100. The position of the acoustic guide hole 291 and the position of the speaker module 260 The position of the output hole 261 can be matched. The output hole 261 is a passage through which sound is output from the speaker module 260. Sounds generated through the sounding of the diaphragm may sound in the speaker module 260 along the output hole 261.

Therefore, the output hole 261 of the speaker module 260 may be provided on the speaker module 260 to be away from the microphone 270.

A guide step 291a may be additionally formed on the inner surface of the upper case 2201 so as to form a step so that the sound generated by the speaker module 260 can pass through the sound guide hole 291 effectively.

The guide step 291a may be formed on the inner side of the acoustic guide hole 291. The width of the guide stepped portion 291a may be larger than the width of the acoustic guide hole 291. [

Referring again to FIG. 12, the acoustic guide hole 291 may be provided in a slit shape. An opening larger than a predetermined size is required to ensure a minimum output of sound, and a slit-shaped acoustic guide hole 291 can satisfy this requirement.

The slit of the acoustic guide hole 291 may be formed along a first direction which is the longitudinal direction of the second body 220b.

The slit-shaped acoustic guide hole 291 formed along the first direction can output sound in a direction that does not interfere with the microphone hole 271 provided in the first body 220a as much as possible, thereby minimizing the hauling phenomenon .

In addition, the slit-shaped acoustic guide hole 291 provided along the longitudinal direction of the second body 220b can provide a design-like feeling together with the second body 220b, 2201 can be minimized.

Speaker module 260 refers to the concept of a collection of minimal devices that output sound. The speaker module 260 may be provided inside the body of the portable acoustic device 100.

The speaker module 260 mounted on the portable audio device 100 may take the form of a speaker 230 with the microphone 270 focused on portability.

The housing forming the external appearance of the speaker module 260 may have a long shape so as to be easily mounted on a bar-shaped body.

14 is a rear view of a speaker module 260 related to the present invention.

The speaker module 260 itself may form a resonance space 265 to maximize the size of the generated sound.

The resonant space 265 may include an interior space formed by the exterior housing of the speaker module 260. The resonance portion 266 of the module housing can form one region of the resonance space 265.

The extension plate 262 may be coupled to the boundary of the resonance unit 266 to form the remaining area of the resonance space 265.

The speaker housing 2601, which forms the appearance of the speaker module 260, may be formed of a material such as polycarbonate or polyamide, and may have advantages of hardness and light weight.

On the other hand, the extension plate 262 may be made of a thin sheet-like metal material.

15 is a sectional view taken along the line A-A 'in Fig.

The extension plate 262 maximizes the size of the resonance space 265, and there is a risk of breakage or cracking when it is the same as the appearance material of most of the speaker modules 260 such as polycarbonate or polyamide, have.

Therefore, the effect of making the resonance space 265 maximized by minimizing the thickness of the outer tube through the extension plate 262 is obtained.

Referring again to FIG. 14, the duct hole 263 may form a path through which air can flow into and out of the speaker module 260, thereby adjusting the output of a specific frequency band.

The mesh sheet 264 can block the duct hole 263 and control the amount of air flowing in and out. The lower the amount of air passing through the duct hole 263, the lower the output of the low sound. The mesh sheet 264 can block the duct hole 263 and serve to reduce the output of the low sound region.

When performing the call function through the speaker module 260, the mesh sheet 264 can minimize the bass region of the output voice so that a clear voice can be heard.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

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.

100: Portable audio device 210: Neck band wire
2101: Curved portion 2102:
211: conductive cable 212: wire tube
213: frame wire 214: fastening case
220: main body 220a: first body
220b: second body 2201: upper case
2202: lower case 2203: side case
230: speaker 240: fastening portion
2401: fastening hole 2402: guide hole
251: protrusion 252:
260: Speaker module 2601: Speaker housing
261: output hole 262: extension plate
263: Duct hole 264: Mesh sheet
265: resonance space 266: resonance section
270: microphone 271: microphone hole
271a: first microphone hole 271b: second microphone hole
281: ear bud 282: holder
283: Cable hole 284: Recovery module
285: Sound cable 291: Sound guide hole
291a: guide stepped portion

Claims (11)

A neck band wire surrounding at least one region of the user's neck;
A main body including a first body and a second body respectively coupled to both ends of the neck band wire;
A microphone for receiving a sound signal through a microphone hole provided in the first body;
A speaker module mounted on the second body to output sound; And
And an acoustic guide hole formed on the second body and being offset away from the microphone. The method according to claim 1,
Wherein the first body is provided in a bar shape extending in a first direction, and the acoustic guide hole includes a slit shape provided in the first direction. 3. The method of claim 2,
And a guide stepped portion formed on the inner side of the acoustic guide hole and having a width larger than a width of the acoustic guide hole. The method according to claim 1,
Wherein the microphone is biased toward the front of the first body, and the acoustic guide hole is biased toward the rear of the second body. The method according to claim 1,
The microphone hole
A first microphone hole provided on an upper surface of the first body; And
And a second microphone hole provided on an outer surface of the first body,
Further comprising a controller for removing a sound signal input through the second microphone hole from the acoustic signal input through the first microphone hole to form a filtered user voice signal. The method according to claim 1,
The speaker module comprising: a module housing including an output hole;
A resonance unit forming a resonance space within the module housing; And
And an extension plate coupled to the resonance boundary to form a remaining region of the resonance space. The method according to claim 1,
A duct hole formed in the speaker module; And
And a mesh sheet coupled to the duct hole. The method according to claim 1,
Wherein the neck band wire comprises:
A seating part forming a specific angle inclination in the lower direction with respect to the main body; And
And a connection part connecting the seating part to the main body. 9. The method of claim 8,
And the connecting portion forms a curved portion. The method according to claim 1,
Wherein the main body includes an upper case and a lower case,
Wherein the neck band wire comprises:
And a fastening part provided at both ends and coupled to the upper and lower cases of the main body to be fixed to the main body. 11. The method of claim 10,
Wherein the neck band wire comprises:
A frame wire including a shape memory alloy;
A wire tube surrounding the frame wire; And
And a fastening case coupled to both ends of the wire tube,
Wherein the fastening portion is formed in the fastening case so that the frame wire, the wire tube, and the fastening case are fixed.

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