KR20200069154A - A portable voice listening device comprisng soundproof function - Google Patents

Abstract

The present invention relates to a portable voice listening device having a soundproof function and, specifically, to a portable voice listening device having a soundproof function, which enables a user to listen to his/her voice or pronunciation without harming others even in a library or a quiet learning space. Provided, in the present invention, is the portable voice listening device having the soundproof function comprising: a housing assembly having an open side; a noise reduction unit which is provided inside the housing assembly to cause changes in the cross sectional area of a passage, through which sounds pass, or in a route, thereby reducing noise inside the housing assembly; and a guide tube connected to the other side of the housing assembly to guide the sounds inside the housing assembly.

Description

A portable voice listening device comprisng soundproof function}

The present invention relates to a portable voice listening device having a soundproofing function, and more particularly, to a portable voice listening device having a soundproofing function capable of listening to one's own voice or pronunciation without damaging others even in a library or a quiet learning space. It is about.

In the case of language learning, memorizing phrases, singing practice, etc., it is recognized that learning by listening to the pronunciation by making a sound by mouth is significantly higher than learning by learning in a manner other than that. A number of results are drawn.

However, such verbal pronunciation or vocalization should be more than a certain amount of sound. To do this, there are constraints that must be made in an independent space without others, in a soundproof booth, or in a space where such vocalization or pronunciation is permitted.

However, in the case of language learning, etc., it is often done in a library, and when a loud voice is made in an apartment house, there is a problem with the neighbors, so there is a problem that they cannot speak or pronounce as much as they like.

In order to solve this problem, as disclosed in Korean Patent 10-1109854, there is a case where a soundproof booth is used, but the volume of the soundproof booth is large, the mobility is inconvenient, and the price is high, which is a problem in terms of utilization.

Korean Registered Patent 10-1109854 (announced on February 14, 2012)

The present invention is provided to solve these problems, and is easy to carry and store and use, while being able to hear one's voice while speaking or speaking anywhere, and can solve the noise problem caused by such pronunciation or speaking outside. It is an object of the present invention to provide a portable voice listening device having a sound insulation function.

The present invention for achieving this object, the housing assembly with one side open; A noise reduction unit provided inside the housing assembly to cause a change in a cross-sectional area of a passage through which the sound passes and reduce noise inside the housing assembly; It provides a portable sound listening device having a soundproofing function, characterized in that it comprises a guide tube for guiding the sound inside the housing assembly is connected to the other side of the housing assembly.

The housing assembly has a first housing that is open on one side and can be sealed around the mouth of the user; It is arranged continuously in the first housing, it characterized in that the guide tube is inserted at its end.

The noise reduction unit is installed so as to span the interior of the first housing and the second housing, and a guide pipe is connected to one end of the noise reduction unit.

The noise reduction unit; A noise reduction plate in which a plurality of noise reduction holes are formed and spanning the interior space of the first housing; An extension pipe communicating with a through hole formed in the center of the noise reduction plate and extending downward and a plurality of noise reduction holes are formed on an outer circumferential surface; a guide pipe is provided at a lower end of the extension pipe to connect the interior space and the guide pipe of the extension pipe. It characterized in that it comprises a connecting portion to communicate.

A coupling portion provided on the lower edge of the extension pipe; It is characterized in that it comprises a corresponding engaging portion provided on the inner rim of the second housing and engaged with the engaging portion.

It characterized in that it further comprises a partition wall for connecting the lower surface of the noise reduction plate and the outer circumferential surface of the extension pipe and dividing the first housing inner space into a plurality of spaces.

It characterized in that it further comprises a sound absorbing member accommodated in the space partitioned by the partition.

According to the present invention, the user does not need to practice vocal exercises or pronunciation in search of an isolated or isolated space, and can listen to it while maintaining the tone, pronunciation, and height of his voice even in a quiet place such as a library. There is this.

In particular, it is possible to further improve the function of reducing sound energy by changing the cross-sectional area of the passage through which the sound passes through the housing assembly, and further reducing noise by adding a suction member therein.

In addition, the user has the advantage that the portability of the housing assembly around the mouth by hand or by using the band is easy to use, and its size is small, so it is easy to carry.

1 is a perspective view of the present invention.
2 is an exploded perspective view of the present invention.
3 is an exploded perspective view of a part of the present invention.
4 is a perspective view of the noise reduction unit of the present invention.
5 is a side cross-sectional view of the present invention.
6 is a state diagram of use of the present invention.
7 is an exploded perspective view of the present invention to which a sound absorbing member is added.
8 is a perspective view of the present invention including a band.
9 is a combined perspective view and an exploded perspective view showing a modified embodiment of the present invention.

The present invention can be applied to various changes and can have various embodiments, and specific embodiments will be illustrated and described in the drawings.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms.

The terms are used only for the purpose of distinguishing one component from other components.

For example, the second component may be referred to as a first component without departing from the scope of the present invention, and similarly, the first component may also be referred to as a second component.

The term and/or includes any combination of a plurality of related described items or any of a plurality of related described items.

When an element is said to be "connected" to or "connected" to another component, it is understood that other components may be directly connected to or connected to the other component, but may exist in the middle. It should be.

On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that no other component exists in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention.

Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, terms such as “include” or “have” are intended to indicate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, one or more other features. It should be understood that the existence or addition possibilities of fields or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings, but the same or corresponding components are assigned the same reference numbers regardless of reference numerals, and redundant descriptions thereof will be omitted.

As shown in Figures 1 and 2, the portable voice listening device having a sound insulation function (hereinafter referred to as a'listening device') 1 has a housing assembly 100 forming its appearance, and therein a housing assembly ( 100) A noise reduction unit 200 for reducing or blocking sound by causing a change in a cross-sectional area or a path of a passage through which sound generated through vocalization or pronunciation passes through is disposed, and a housing assembly is disposed under the housing assembly 100 It includes a guide tube 310 made of a flexible material that transmits a sound (voice signal) spread inside, and an ear plug 320 provided at the end of the guide tube 310 to be inserted into a user's ear.

The housing assembly 100 includes a first housing 110 located at an upper portion and a second housing 120 positioned below it, which are separated from each other, and in an assembled state, are in a continuous state up and down with each other. . On the other hand, the appearance is shown to take a cone (cone) shape, but is not limited thereto.

The housing assembly 100 has a wide opening on the upper side, and the inlet rim is curved, so that the user can place the opened inlet 111 around the mouth to block the mouth around the outside (see FIG. 6).

In this state, when the sound is made by the mouth, the sound is ringed inside the housing assembly 100, and it is prevented from being transmitted to the outside as it is by the noise reduction function (muffler function) of the noise reduction unit 200.

However, the sound is transmitted through the guide tube 310 as it is, and the sound is transmitted to the user's ear through the ear plug 320 so that the user can hear his voice.

2 is an exploded perspective view of the present invention.

The first housing 110 has an upper inlet 111 is formed wide, its inner diameter and outer diameter is formed narrower as it goes down, and is provided in a conical shape in which a part of the vertex is removed.

The noise reduction unit 200 is inserted into the first housing 110 to be accommodated. The noise reduction unit 200 is disposed over the first housing 110 and the second housing 120, and the guide tube 310 is connected to the connection unit 223 at the lower end of the noise reduction unit 200. .

The noise reduction unit 200 includes a noise reduction plate 210 in which a plurality of noise reduction holes 212 are formed and spans the interior space of the first housing 110, and the noise reduction plate 210 has a central portion thereof. It has a concave shape, a communication hole 211 is formed in the central portion, and a plurality of noise reduction holes 212 are formed in the periphery. The sound passes through the plurality of noise reduction holes 212 and the sound is reduced as energy is reduced.

An extension pipe (communication hole 211) formed in the center of the noise reduction plate 210 extends downward and a plurality of noise reduction holes 221 are formed on the outer circumferential surface of the area where the communication hole 211 is located. 220) is located.

A space is formed inside the extension pipe 220, and noise reduction holes (side surfaces, bottom surfaces) 221 and 224 are formed on the outer circumferential surface to communicate with the inner space. The sound entering through the entrance portion of the first housing 110 passes through the noise reduction holes 212 of the noise reduction plate 210 and the noise reduction holes 221 on the outer circumferential surface of the extension pipe 220, thereby reducing its energy. . However, the sound energy moving through the space inside the communication hole 211 is returned to the user's ears through the guide tube 310 and the ear plug 320 connected to the connection part 223 provided in the form of a tap at the bottom of the extension pipe 220. Can be delivered.

Meanwhile, a rib-shaped partition wall portion 230 is provided to connect the lower surface of the noise reduction plate 210 and the outer circumferential surface of the extension pipe 220, and to partition a plurality of spaces in the inner space of the first housing 110, and the partition wall portion ( It is preferable that the plurality of 230 is provided and spaced apart from each other.

A coupling portion 222 provided in the form of a male thread is provided on the outer circumferential surface of the lower end region of the extension pipe 220, and a female spiral shape combined with the coupling portion 222 is provided on the inner circumferential surface of the upper region of the second housing 120. The corresponding coupling portion 122 is provided.

However, the coupling portion 222 and the corresponding coupling portion 122 are not limited to those described above, and other types of coupling methods (adhesive insertion method, one-touch fitting method, etc.) may be variously applied.

The rim of the noise reduction plate 210 is provided to be in close contact with the inner wall surface of the first housing 110, and the outer rim of the partition wall 230 can also be in close contact with the inner wall surface of the first housing 110, the partition wall part The lower end portion of the 230 is provided above the engaging portion 222, the lower end portion of the partition wall 230 is preferably provided to be hung on the lower edge of the first housing 110.

The connection portion 223 is shown to protrude in the form of a tap as described above, but alternatively, it is also possible to be provided with a groove structure into which the guide tube 310 can be inserted, and the inside of the connection portion 223 is hollow. In this way, the guided sound can be transmitted to the guide pipe 310 by riding the extension pipe 220.

The second housing 120 is provided in a narrow cone shape, and its upper rim is in close contact with the lower rim when the first housing 110 is provided, and the lower region of the noise reduction unit 200 (eg, an extension pipe ( The coupling portion 222, the connection portion 223, and the noise reduction hole 224 at the lower end of the 220 are inserted and coupled.

In addition, a passing groove 121 is formed at a lower portion of the second housing 120, and the guide pipe 310 passes through the passing groove 121 to be exposed to the outside.

FIG. 3 shows the second housing 120 and the guide tube 310 (including the ear plug 320) separated when the first housing 110 and the noise reduction unit 200 are combined.

When the noise reduction unit 200 is inserted and disposed into the first housing 110, the noise reduction plate 210 is disposed to enter the inner side of the entrance 111 and is spaced between the entrance 111 and the noise reduction plate 210. It is formed. Then, in the state in which the noise reduction unit 200 is inserted, the coupling portion 222 and the connection portion 223 of the noise reduction unit 200 are exposed below the lower portion of the first housing 110.

In this state, the area exposed in the direction of the second housing 120 (the coupling portion 222 and the connection portion 223) is inserted and fixed, and the guide pipe 310 is coupled to the connection portion 223 as described above, The structure and shape shown in FIG. 1 are completed.

4, the noise reduction plate 210 is formed to be concave toward the center from the rim, and the noise reduction holes 212 formed in the noise reduction plate 210 are spaced apart from each other and are provided in plural to penetrate vertically. It is desirable. Then, a through hole 211 is formed in the most concave portion of the center as described above.

The extension pipe 220 extends a predetermined length downward, and is connected to the center of the noise reduction plate 210, and its inner space communicates with the through hole 211. Therefore, the sound on the noise reduction plate 210 may be transmitted down through the through hole 211 and the extension pipe 220.

In addition, noise reduction holes 221 and 224 are also provided on the outer circumferential surface of the extension pipe 220 so that sound energy coming out of the extension pipe 220 and passing through the noise reduction holes 221 and 224 can be reduced.

In addition, the partition wall portion 230 is provided to be spaced apart, and the two adjacent partition walls 230 together with the inner wall of the first housing 110 make a compartment, which is an independent space, and reduce the noise of the extension pipe 220 with this portion. The sound passing through the noise reduction hole 212 of the holes 221 and 224 and the noise reduction plate 210 moves.

The principle of the silencer is that the energy (wave and vibration energy) is reduced by repeatedly passing through a wide space and a narrow space, and again a wide space constituting the sound. The noise reduction unit 200 includes a noise reduction plate 210 ) The noise reduction hole 212 is disposed between the upper space and the space (compartment) below, and the noise reduction hole 221 is also provided between the inside of the extension pipe 220 and the outside (compartment) of the extension pipe 220. 224), so that the energy can be reduced when the sound moves between them.

In addition, since the housing assembly 110 blocks the internal space and the external space, it is possible to significantly block the transmission of reduced sound energy from inside the housing assembly 110 to the external space.

5 is a side cross-sectional view of the present invention.

As shown in FIG. 5, the border of the noise reduction plate 210 is adjacent to or touches the inner wall of the first housing 110, and the side border of the partition wall 230 also touches the inner wall of the first housing 110 to border them. Thus, a plurality of partitioned spaces are formed.

The extension pipe 220 passes through the lower end of the first housing 110 to reach the upper region of the second housing 120, and the guide pipe 310 is connected to the connection portion 223 at the lower end of the extension pipe 220 The guide tube 310 is disposed to extend downward along the second housing 120 and passes through the through groove 121 to be exposed to the outside. An ear plug 320 is provided at the other end of the guide tube 310 exposed to the outside.

As shown in Fig. 6, the user holds the housing assembly 100 and places the entrance around the mouth, thereby blocking the mouth around from the outside.

In this state, even if a loud sound is made, only a small'humming' sound can be heard from the outside, so that outsiders cannot perceive the loudness and pronunciation of the original sound at all.

However, the guide pipe 310 is connected to the extension pipe 220 inside the housing assembly 100, so that the interior space of the extension pipe 220 and the sound and pronunciation originally made through the guide pipe 310 are transmitted. The ear plug 320 can be heard intact.

7 shows that the sound absorbing member 250 is added to the basic embodiment of the present invention. The suction member 250 is preferably made of a porous material, such as a sponge. Here, the sound absorbing member 250 is preferably provided in a block shape and is disposed between the partition wall 230 and the partition wall 230.

In addition, it is preferable that the appearance shape corresponds to the shape of the compartment formed by the noise reduction plate 210, the partition wall 230, the partition wall 230, and the inner wall of the first housing 110. The rest of the configuration is the same as the above description, so a detailed description will be omitted to prevent duplicate description.

8 is another embodiment of the present invention. In FIGS. 1 to 7, the housing assembly was used to hold the body directly and adhered to the mouth, but in this case, since there is inconvenience in using the hand, a pair of bands 410 and 420 are removed as shown in FIG. 8(a). 1 The housing 110 may be attached to both sides to be worn like a mask having a band hanging on the ear, or a long band 430 such as a hair band mounted on the head as shown in FIG. ) Connect from one side to the other, and cover it to the back of the head so that it can be worn like a gas mask. Here, the bands 410, 420, and 430 are preferably made of an elastic material.

As shown in FIG. 8, when the bands 410, 420, and 430 are worn on the ears or the head, the inlet 111 of the housing assembly 100 is around the user's mouth by the elastic restoring force of the bands 410, 420, and 430. It is in close contact with the sealing between the rim of the entrance 111 and around the mouth can be made tight. On the other hand, if the band 410, 420, .430 has a string length adjustment function, it is more preferable.

9 is a modified embodiment of the present invention.

Fig. 9(a) is a combined perspective view of a modified embodiment, and Fig. 9(b) is an exploded perspective view.

As illustrated in FIG. 9, the housing assembly 1100 having a soundproofing function forms its appearance, and therein, noise reduction to reduce or block sounds generated through vocalization or pronunciation through the housing assembly 1100. The part 1200 is disposed, and the housing assembly 1100 is provided at the end of the guide tube 1310 and a flexible material guide tube 1310 for transmitting sound (voice signal) spread inside the housing assembly, and can be inserted into the user's ear. Includes ear plug 1320.

The housing assembly 1100 includes a first housing 1110 located at an upper portion and a second housing 1120 positioned below it, which are separated from each other, and in an assembled state, are in a continuous state up and down with each other. . On the other hand, the appearance is shown to take a cylindrical shape, but is not limited to this.

The housing assembly 1100 has a wide opening on the upper side, and the entrance rim is curved, so that the user can place the opened entrance 1111 around the mouth to block the mouth circumference from the outside.

And, at the entrance of the housing assembly 1100, a sealing member 1400 of a flexible material that is in contact with the skin around the user's mouth and functions as a sealing function is provided.

When the sound around the mouth is covered with the housing assembly 1110, the sound is made inside the housing assembly 1100, but the sound is reduced to the outside by the noise reduction function (muffler function) of the noise reduction unit 200. Transmission is prevented.

However, the sound is transmitted through the guide tube 1310 as it is, and the sound is transmitted to the user's ear through the ear plug 1320 so that the user can hear his voice.

9(b), the noise reduction unit 1200 is inserted into the first housing 1110 and accommodated. The noise reduction unit 1200 is disposed over the first housing 1110 and the second housing 1120, and the guide tube 1310 is connected to the connection unit 1223 at the lower end of the noise reduction unit 1200. .

The noise reduction unit 1200 includes a noise reduction plate 1210 in which a plurality of noise reduction holes 1212 are formed and spans the interior space of the first housing 1110, and the noise reduction plate 1210 has a central portion thereof. It has a concave shape, a communication hole 1211 is formed in the central portion, and a plurality of noise reduction holes 1212 are formed in the periphery.

The sound passes through the plurality of noise reduction holes 1212 and the sound is reduced as energy is reduced.

Meanwhile, in order to maximize the noise reduction effect, a sound absorbing member (not shown) may be additionally installed in the space below the noise reduction plate 1210.

An extension pipe (1211) communicating with the communication hole (1211) formed in the center of the noise reduction plate (1210), extending downward, and forming a plurality of noise reduction holes (1221) on the outer circumferential surface below the area where the communication hole (1211) is located 1220) is located.

A space is formed inside the extension pipe 1220, and noise reduction holes (side surfaces, bottom surfaces) 1221 and 1224 are formed on the outer circumferential surface to communicate with the inner space. The sound entering through the entrance portion of the first housing 1110 passes through a plurality of noise reduction holes 1212 of the noise reduction plate 1210 and the noise reduction holes 1221 on the outer peripheral surface of the extension pipe 1220, thereby reducing its energy. .

However, the sound energy moving through the space inside the communication hole 1211 is returned to the user's ears through the guide tube 1310 and the ear plug 1320 connected to the connection part 1223 provided in the form of a tap at the bottom of the extension pipe 1220. Can be delivered.

A coupling portion 1222 provided in the form of a male spiral is provided on the outer circumferential surface of the lower end region of the extension pipe 1220, and a female spiral shape coupled with the coupling portion 1222 is provided on the inner circumferential surface of the upper region of the second housing 1120. A corresponding engaging portion 1122 is provided.

However, the coupling portion 1222 and the corresponding coupling portion 1122 are not limited to those described above, and other types of coupling methods (adhesive insertion method, one-touch fitting method, etc.) may be variously applied.

The edge of the noise reduction plate 1210 is provided in close contact with the inner wall surface of the first housing 1110.

The connection portion 1223 is shown to protrude in the form of a tap as described above, but alternatively, the guide tube 1310 may be provided with a groove structure that can be inserted, and the inside of the connection portion 1223 is hollow. Therefore, the guided sound can be transmitted to the guide tube 1310 by riding the extension pipe 1220.

The second housing 120 is provided in a bowl shape, and its upper rim is in close contact with the lower rim when the first housing 1110 is formed, and inside the upper region, a lower region (eg, an extension) of the noise reduction unit 1200 The coupling portion 1222, the connection portion 1223, and the noise reduction hole 1224 at the lower end of the pipe 1220 are inserted and combined.

In addition, a pass groove (not shown) is formed in the lower portion of the second housing 1120, and the guide tube 310 passes through the pass groove (not shown) to be exposed to the outside.

Meanwhile, a storage space part 1123 is provided inside the second housing 1120, and the storage space part 1123 serves as a space for wrapping and guiding the guide tube 1310 made of a soft material. Therefore, the guide tube 1310 is wound around the inside of the storage space 1123 around the corresponding coupling portion 1122, and the ear plug 1320 can also be accommodated inside the storage space 1123 and carried. There is an advantage.

Since the operation of the modified embodiment according to FIG. 9 is the same as that already described, a detailed description will be omitted.

As described above, the present invention has been described with reference to embodiments shown in the drawings, but this is only for explaining the invention, and those skilled in the art to which the present invention pertains various modifications or equivalents from the detailed description of the invention It will be understood that one embodiment is possible.

Therefore, the true scope of the present invention should be determined by the technical spirit of the claims.

100: housing assembly 110: first housing
120: second housing 200: no noise reduction
210: noise reduction plate 211, 221, 224: noise reduction hall
220: extension pipe 230: bulkhead
310: guide tube 320: ear plug

Claims (7)

A housing assembly having one side open;
A noise reduction unit provided inside the housing assembly to reduce the noise inside the housing assembly by causing a change in the cross-sectional area or path of the passage through which the sound passes;
And a guide tube connected to the other side of the assembly of the housing to guide sound inside the housing assembly. According to claim 1,
The housing assembly includes a first housing that is open on one side and surrounds the user's mouth to be sealed;
A portable voice listening device having a sound insulation function which is continuously disposed in the first housing and the guide tube is inserted at its end. According to claim 2,
The noise reduction unit is installed so as to span the interior of the first housing and the second housing, a portable voice listening apparatus having a soundproofing function, characterized in that a guide tube is connected to one end of the noise reduction unit. According to claim 3,
The noise reduction unit;
A noise reduction plate in which a plurality of noise reduction holes are formed and spanning the interior space of the first housing;
An extension pipe communicating with a through-hole formed in the center of the noise reduction plate and extending downward and a plurality of noise reduction holes are formed on an outer circumferential surface;
It is provided at the lower end of the extension pipe is connected to the guide tube is connected to the inner space of the extension pipe and a connecting portion for communicating with the sound guide, a portable audio listening device having a sound insulation function. The method of claim 4,
A coupling portion provided on the lower edge of the extension pipe;
A portable voice listening device having a soundproofing function, characterized in that it comprises a corresponding engaging portion provided on the inner rim of the second housing and engaged with the engaging portion. According to claim 3,
A portable voice listening device having a soundproofing function, further comprising a partition wall portion connecting the lower surface of the noise reduction plate and the outer circumferential surface of the extension pipe, and partitioning the first housing interior space into a plurality of spaces. The method of claim 4,
And a sound absorbing member accommodated in the lower space of the noise reduction plate.

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