KR101910064B1 - Microphone - Google Patents

Abstract

The present invention relates to a microphone capable of enabling a user to easily and effectively block noise of an external sound signal input to the microphone, and more particularly, to a microphone capable of converting vibration into an electric signal when the vibration through a sound signal (sound wave) is input. The microphone comprises a blimp which is provided on the outer surface of the microphone to ascend and descend, and blocks noise of a sound signal input to a head by opening and closing the outside of the head of the microphone to which the sound signal is input by the ascending and descending movement. The blimp includes a rod member formed on the outer surface of the microphone in the longitudinal direction, and a noise blocking member provided so as to be able to ascend and descend along the rod member and block the noise of the sound signal input to the head by opening and closing the outside of the head by the ascending and descending movement.

Description

MICROPHONE < / RTI >

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a microphone that can effectively block noise of an external sound signal input to a microphone by a user.

Generally speaking, a microphone is a ribbon microphone using a thin ribbon-like film made of an aluminum material as a diaphragm, a coil wound around a permanent magnet moves according to a reaction of a diaphragm caused by an air sound pressure, A condenser microphone that generates a change in the current in the condenser when the diaphragm responds to sound pressure, and a non-directional microphone on a flat plate to provide a PZM Pressure Zone Mic microphone.

As shown in FIG. 1, in the conventional microphone, a microphone unit is inserted into one end of a handle having a switch, and a grill is fastened to the handle. The handle has an inner body to which the switch is attached, A button cover which is fitted on the button of the switch, and a snap cover engaging the snap-fit groove of the outer cover to cover the button cover, so that the inner body and the outer skin are snapped And a switch decorating body which can be combined with each other.

The body 11 is a truncated hollow body and a gentle step is formed in two sections of the inner and outer surfaces. A phantom 13 having an outer diameter equal to the outer diameter of the portion where the outer shell 12 and the grill 4 come into contact with each other is located on the side where the inner space of the inner body 11 is widened, Respectively. A switch mounting portion 14 is formed in the middle of the inner body 11 and a switch 15 fitted in the switch mounting portion 14 is fastened by the piece 16 at the switch mounting portion 14. [

On both sides in the longitudinal direction of the switch mounting portion 14, there is formed a fitting hole 19 capable of substantially snap-fitting the switch decorative member 18 to be described later. A cable jack 7 for plugging a cable (not shown) coming from the outside is inserted into a portion where the inner space of the inner body 11 is narrowed, and is fixed to the piece 20 after the cable jack 7 is inserted.

The inner surface of the inner body 11 is widened to have a threaded surface 21, so that the grill 4 is fastened. The microphone unit (3) protected by the grill (4) is partially fitted into the expanded end of the inner body (11).

The microphone unit 3 is first inserted into the expanded side of the inner body 11 and the grill 4 is put on the outer surface of the microphone unit 3 so that the inclined surface 21 of the inner body 11 .

The envelope 12 is made of soft synthetic resin. The outer shell 12 is fitted to the outer surface of the inner body 11 and then coupled to the inner body 11 by the switch decorating body 18. [ The shell 12 is a truncated cone-shaped hollow body with no step in the middle.

The outer shell 12 is joined to a section from the end of the narrowed portion of the inner body 11 to the tip 13. In the middle of the shell 12, a snap engagement groove 22 is formed in the same size and coplanar shape at a position corresponding to the switch mounting portion 14 of the inner body 11 described above.

The switch decorative member 18 is formed by being extruded through a synthetic resin. The switch decorative member 18 is formed in the same shape as the snap fitting groove 22 of the outer shell 12 and the switch mounting portion 14 of the inner body 11 and is coupled to the snap fitting groove 22.

The switch cover (23) is provided at the center of the switch decorative body (18) so as to slide in the front and rear direction by an external operation without detaching the button cover (23) from the outside.

At both sides of the bottom surface of the switch decorative member 18 in the longitudinal direction, coupling protrusions 24 are formed which are capable of being pressed against the coupling holes 19 formed in the switch mounting portion 14 in the inner body 11. The button cover 23 is slidably inserted in the middle of the switch decorating body 18 and is formed in the order that the groove is formed on the bottom surface and is coupled onto the button 17 of the switch 15.

However, such a conventional microphone has a structure in which a sound signal including noises is directly inputted through a grill, so that an expensive blimp having a structure for wrapping the whole microphone separately for blocking the noise is used to generate noise However, since the installation process is complicated and the microphone having the blip is installed in a structure which is inconvenient to use by the moderator who carries out the external event, there is a problem that the audience can not receive the correct sound signal .

In order to solve the above-mentioned conventional problems, a moderator (user) who performs an external event removes noise of a sound signal micro-input by a simple operation according to the environment (snow, rainy weather or windy day) And to provide a microphone that can be used while the moderator can easily grasp and move the microphone having the noise canceling function.

According to an aspect of the present invention, there is provided a microphone having a blind structure, which converts a vibration of a sound wave into an electric signal when the vibration is inputted through a sound wave, And a bluff which is provided on the outer surface of the microphone so as to be able to move up and down to block noise of an acoustic signal input to the head by opening and closing the head of the microphone, And a noise blocking member provided so as to be able to move up and down along the rod member and to block noise of an acoustic signal input to the head by opening and closing the outside of the head by raising and lowering the rod member .

The rod member is protruded to have a plate shape having a predetermined diameter on the outer surface of the microphone in proximity to the head to limit a vertical distance of the noise shielding member, and a stopper having one end connected to the stopper, And a guide movably coupled to the noise blocking member, the guide block providing a traveling path when the noise blocking member is lifted or lowered.

The noise blocking member may include a lifting body that is formed in a tubular shape having a hollow portion through which the microphone is inserted and inserted, the lifting body lifting along the rod member to open and close the outside of the head, A cover plate provided to close the upper portion of the ascending / descending member opened when the ascending / descending member is lifted to enclose the outside, and a plurality of protrusions formed on at least one of the outer surface of the ascending / descending member and the cover plate to communicate with the hollow portion And a noise shielding film provided so that noises of an acoustic signal input to the head are intercepted and inputted, wherein the cover plate is normally detachably coupled to an outer surface of the lifting body, It is possible to engage with the open top of the lifting body only when the noise of the lifting body is interrupted Is recommended.

According to the present invention, a noise shielding member provided on a microphone is provided so as to be able to move up and down along a rod member differently from the conventional one, and the noise shielding member is lifted up and down according to the user's choice, It is possible to block the noise included in the sound signal, thereby providing an accurate sound signal to the audience.

1 is a conventional microphone drawing.
2 shows a microphone having a blink structure according to the present invention;
3 is a view showing a rod member of a microphone having a blooming structure according to the present invention.
4 is a cross-sectional view taken along line AA 'of FIG. 3;
5 is a view showing a noise blocking member of a microphone having a blooming structure according to the present invention.
6 is a cross-sectional view of BB 'and CC' of FIG. 5;
Figs. 7 and 8 are diagrams showing the operational relationship of a microphone having a blooming structure according to the present invention. Fig.
9 and 10 are views showing first and second auxiliary shielding films of a microphone having a blind structure according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a microphone having a bimorph structure according to the present invention will be described in detail with reference to the accompanying drawings. Prior to the description, the microphone according to the present invention converts a vibration through an acoustic signal (sound wave) such as an external sound into a H (hard), converts the vibration into an electric signal by a diaphragm, a magnet coil, And means a microphone that allows a person to listen through a speaker, an earphone, etc., and a description of its structure and operation will be omitted so as not to obscure the gist of the present invention.

1, the Bull limb 1 according to the present invention includes a rod member 100 formed on a microphone 10 and a microphone 100 mounted on the microphone 10 so as to be capable of being raised and lowered along the rod member 100. As shown in FIG. And a noise blocking member 200 which is made of a metal.

The user can easily recognize that the acoustic signal input through the head 11 of the microphone 10 when the microphone 10 is used outdoors is mixed with noises such as a sound of rain or wind which hits the head 11 , The noise blocking member 200 is raised so that unnecessary noise can be prevented from being input to the head 11 (see FIGS. 7 and 8).

3 and 4, the rod member 100 has a structure in which the noise blocking member 200 to be described later can move up and down along the microphone 10, and the stopper 110 And a guide 120. As shown in FIG.

The stopper 110 is formed in a plate shape having a predetermined diameter and protrudes from the outer surface of the microphone 10 so as to be close to the head 11 so that the lifting body 210 moves up and down along the guide 120, 210 have limited movement distances.

At this time, the position where the stopper 110 is formed is maintained when the head 11 is normally opened, and when the noise is to be blocked, the lifting body 210 provided on the outer surface of the microphone 10 moves along the guide 120 So that noise of the acoustic signal can be blocked by the noise blocking layer 230. [0041] As shown in FIG.

The guide 120 is formed to have a predetermined length in the longitudinal direction of the microphone 10 so that one end of the guide 120 is connected to the outer surface of the stopper 110. The outer surface of the guide 120 is engaged with the lifting body 210 so that the lifting body 210 can slide, So as to be able to provide a moving path capable of ascending and descending.

In addition, the guide 120 is radially formed on the outer surface of the microphone 10 so as to stably ascend and descend the ascending / descending body 210 so that the ascending and descending body 210 can be stably lifted and lowered.

At this time, the length of the guide 120 may be such that the power switch 13 or the like provided on the microphone 10 is exposed to the outside before the ascending / descending body 210, which is movably engaged with the guide 120, So that the user can operate the microphone 10 with ease.

As shown in FIGS. 5 and 6, the noise blocking member 200 is configured to selectively block a noise of an acoustic signal input through the head 11 by a user. The noise blocking member 200 includes a lifting body 210 A cover plate 220, and a noise barrier film 230.

For example, the lifting body 210 has a hollow cylindrical shape having a hollow portion 211 through which the microphone 10 is inserted. The outer surface of the lifting body 210 has a plurality of first The through holes 212 may be formed in the perforations.

The first through hole 212 is formed to communicate with the hollow portion 211 so that the acoustic signal having the noise removed through the noise blocking layer 230 can be easily inputted to the head 11 .

The lifting body 210 is upwardly / downwardly opened and is lifted up along the outer surface of the microphone 10 by the external force of the user. Then, the upper portion of the lifting body 210 is closed by the cover plate 220, The stopper 110 closes the head 11 so that the outside of the head 11 is entirely enclosed by the lifting body 210. This maximizes the effect of blocking the noise of the acoustic signal input through the head 11. [

A moving groove 213 is formed in the inner surface of the lifting body 210 so as to movably engage with the respective guides 120. The moving groove 213 is formed in the outer surface of the stopper 110 when the lifting body 210 is lifted, So that the ascending distance of the lifting body 210 can be limited.

A locking protrusion 214 is formed on the inner surface of the upper end of the lifting body 210 so that the lifting body 210 can limit the lowering distance of the lifting body 210 when the lifting body 210 is lowered along the guide 120 do.

The upper surface of the lower portion of the lifting body 210 may be provided with a fitting groove 215 to which a mounting table (not shown) for fixing the microphone 10 at a predetermined height is coupled, have.

The cover plate 220 is configured to have a shape corresponding to the open upper portion of the ascending / descending member 210 to close the opened upper portion of the ascending / descending member 210. In the present invention, The shape will be described as an example.

The cover plate 220 is detachably coupled to the outer surface of the lifting body 210 so as not to be lost when the lifting body 210 is not normally lifted to the head 11, The upper portion of the lifting body 210 is closed to maximize the noise blocking effect (see FIGS. 1 and 8).

In addition, at least one second through hole 221 through which the noise blocking film 230 can be installed, so that the cover plate 220 can easily input an acoustic signal into the head 11, So that the noise included in the received signal can be blocked.

At the outer surface of the cover plate 220, an engaging protrusion 216 protruding from the outer surface of the lifting body 210 and an engaging groove 223 engaging with the engaging protrusion 216 are formed on the outer surface of the lifting body 210, ) Or on an upper surface thereof.

The noise blocking layer 230 may be made of wool or cloth having fine pores to block noise of an acoustic signal input through the head 11.

9 and 10, the noise blocking layer 230 may further include a first auxiliary blocking layer 231 or a second auxiliary blocking layer 233, The first and second auxiliary shielding films 210 and 210 are made of a fur material which can be opened and closed and are provided so as to surround the outer surface of the elevating and lowering body 210 to maximize noise blocking effect of an acoustic signal in an environment of rain or snow, 233 are provided inside the head 11 to maximize the noise blocking effect together with the noise blocking film 230 described above.

The second auxiliary blocking layer 233 may have the same shape as the noise blocking layer 230. The second auxiliary blocking layer 233 may have the same shape as the noise blocking layer 230, In the present invention, a sponge material having a plurality of pores is used.

At this time, the pore diameter of the second auxiliary blocking layer 233 may be larger than the diameter of the pores formed in the noise blocking layer 230, so that the acoustic noise, which is primarily removed by the noise blocking layer 230, It is preferable that the volume thereof does not decrease when passing through the second auxiliary blocking film 233.

That is, when the noise of the acoustic signal is primarily blocked through the noise blocking film 230, the volume of the corresponding acoustic signal flowing through the head 11 may be lowered. The lowered acoustic signal is transmitted to the second auxiliary blocking film 233 ) May be lowered at the time of passing.

The diameter of the pores formed in the second auxiliary blocking layer 233 is formed to be larger than the diameter of the pores formed in the noise blocking layer 230, thereby solving the above-described problems.

The specific embodiments of the present invention have been described above. It is to be understood, however, that the spirit and scope of the invention are not limited to these specific embodiments, but that various changes and modifications may be made without departing from the spirit of the invention, If you are a person, you will understand.

Therefore, it should be understood that the above-described embodiments are provided so that those skilled in the art can fully understand the scope of the present invention. Therefore, it should be understood that the embodiments are to be considered in all respects as illustrative and not restrictive, The invention is only defined by the scope of the claims.

1: Microphone having blind structure according to the present invention
10: microphone 11: head
13: power switch 100: rod member
110: Stopper 120: Guide
200: Noise blocking member 210:
211: hollow part 212: first through hole
213: moving groove 214: latching jaw
215: fitting groove 216: engaging projection
220: cover plate 221: second through hole
223: coupling groove 230: noise barrier
231: first auxiliary blocking film 233: second auxiliary blocking film

Claims (3)

A microphone (10) for converting the vibration into an electric signal when a vibration through a sound wave (sound wave) is inputted,
The head 11 is provided on the outer surface of the microphone 10 to open and close the outside of the head 11 of the microphone 10 to which acoustic signals are inputted by the lifting and lowering, (1), wherein the bling limb (1) comprises:
A rod member 100 formed on the outer surface of the microphone 10 in a longitudinal direction and being movable up and down along the rod member 100 so as to open and close the outside of the head 11 by a lift, And a noise blocking member (200) provided so as to block noise of a sound signal,
The rod member (100)
A stopper 110 protruding from the outer surface of the microphone 10 to define a plate having a predetermined diameter in the vicinity of the head 11 so as to limit the lifting distance of the noise blocking member 200; And a plurality of radial protrusions formed on an outer surface of the microphone 10 so as to be connected to the stopper 110. The noise blocking member 200 is movably coupled to the noise blocking member 200, And a guide (120) for providing the microphone (110).
delete The method according to claim 1,
The noise blocking member 200
A lifting body 210 which is formed in the shape of a tube having a hollow portion 211 through which the microphone 10 is inserted and which moves up and down along the rod member 100 to open and close the outside of the head 11;
A cover plate 220 provided to detachably attach the lifting body 210 and close the upper portion of the lifting body 210 opened when the lifting body 210 covers the outside of the head 11, ); And
A plurality of holes may be formed on the outer surface of the lifting body 210 to communicate with the hollow portion 211 or at least one of the cover plates 220 may block noise of an acoustic signal input to the head 11, And a noise barrier 230,
The cover plate 220 is normally detachably coupled to the outer surface of the lifting body 210. When the noise of the acoustic signal input to the head 11 is blocked, And the microphone is connected to the upper portion of the microphone.

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