KR102626881B1 - Air Respirator with Wired Head-Up-Display - Google Patents

Abstract

The present invention relates to an air respirator, and the air respirator according to an embodiment of the present invention is a full-face mask type respirator that forms an airtight space on the user's face and is connected to a positive pressure regulator to receive air into the airtight space from an air tank. It includes a facepiece, and the respirator facepiece is provided with an external connection port on the outer surface through which external devices can be connected so that electronic devices placed in the airtight space can receive power, pressure information, etc. from external devices. According to the present invention, an external connection port to which an external device can be connected is placed on the face of the respirator, so that the electronic device installed in the airtight space on the face can be connected to the external device by wire, so that the electronic device can receive power from the outside, miniaturizing the device. It is possible, and information or signals can be stably transmitted and received between electronic devices and external devices.

Description

Air respirator with wired head-up-display}

The present invention relates to an air respirator, and more specifically, to an air respirator in which an external connection port through which external devices can be connected is placed on the respirator casing, thereby enabling a wired connection between an electronic device installed on the inside of the respirator casing and an external device. will be.

Generally, firefighters extinguishing a fire are supplied with air through a breathing apparatus at the scene of the fire. These air respirators are made in the form of a backpack and supply air from the air tank worn on the firefighter's back to the respirator face worn on the firefighter's face. At this time, a regulator is provided near the backrest and respirator cover where the air respirator air tank is connected so that the air in the air tank can be supplied by depressurizing it to the respirator face worn by the firefighter. It depressurizes the high-pressure air to a pressure suitable for breathing by the firefighter and supplies it. do.

In this way, an air respirator consisting of an air cylinder, a respirator face, and a back with a regulator installed as a set is made up of a set and can be worn by firefighters and put into a fire scene and used to extinguish a fire or rescue people.

In addition to the self-contained breathing apparatus (SCBA) for firefighters, there are self-contained underwater breathing apparatus (SCUBA: Self-Contained Underwater Breathing Apparatus) used by scuba divers. . The underwater respirator differs in that it may be equipped with a separate device for diving, such as a water pressure indicator that measures the surrounding water pressure, but the basic principle of supplying air to the user is similar to that of a firefighter's air respirator. .

In such an air respirator, various electronic devices can be placed in the airtight space on the face side formed by the user wearing the respirator facepiece. For example, a pressure indicator that provides information on the air pressure of the air tank to the user may be placed in the airtight space, and a microphone module that collects the user's voice signal may be placed. At this time, the pressure indicator is separate from the pressure gauge directly connected to the air tank and allows the user to check the remaining amount of the air tank at all times without using their hands. The microphone module collects the user's voice signal and transmits it to the surroundings through a speaker. It can be output or transmitted externally through a radio.

However, electronic devices placed in confidential spaces like this have difficulty making wired connections with devices outside the confidential space, so they either have built-in batteries to supply power themselves, or they can share signals or information with external devices through wireless communication connections such as Bluetooth. Sending and receiving.

However, self-power supply using a built-in battery increases the size and weight of the electronic device, which is disadvantageous for placing the electronic device in a confidential space, and transmitting and receiving information using a wireless communication connection has limitations such as the occurrence of communication failures. Accordingly, there is a need for the development of an air respirator that enables wired connection of electronic devices in an airtight space to external devices.

The present invention is intended to solve the problems of the prior art mentioned above. The purpose of the present invention is to place an external connection port on the respirator face to which external devices can be connected, so that electronic devices installed in the airtight space on the face can be connected to external devices. The purpose is to provide an air respirator that allows for a wired connection.

The air respirator according to an embodiment of the present invention includes a full-face mask type respirator casing that forms an airtight space on the user's face and is connected to a positive pressure regulator to receive air from the air tank into the airtight space, and the respirator casing is airtight. An external connection port through which external devices can be connected is provided on the outer surface so that electronic devices placed in the space can receive at least one of power and information from external devices.

At this time, the respirator face is disposed to cover the user's face and includes a viewing window in which a coupling hole is formed, and a ventilation unit that penetrates and couples to the coupling hole, and the external connection port is disposed in the ventilation unit.

Additionally, the ventilation unit may include a valve seat coupled to the coupling hole on the airtight space side, and a seat cover coupled to the valve seat on the opposite side of the airtight space and on which an external connection port is disposed.

In addition, the air respirator further includes a cable unit having a first connection terminal connectable to an external connection port at one end and a second connection terminal connectable to an external device at the other end, and one end of the cable unit is connected to a positive pressure regulator. can be combined

In addition, the cable unit has a first connection terminal disposed, a coupling ring coupled to the periphery of the protruding insertion hole of the positive pressure regulator that is inserted and coupled to the coupling hole of the seat cover, and a cable connecting the first connection terminal and the second connection terminal. , and may further include a cable cover that integrally surrounds and accommodates the air hose and cable extending from the positive pressure regulator.

In addition, the air respirator is connectable to an external connection port and further includes a pressure sensor that detects the air pressure in the air tank and a pressure indicator that is coupled to the valve seat and displays air pressure information to the user, and the pressure indicator connects to an external connection port. It can be electrically connected to an external connection port to receive air pressure information from a pressure sensor.

Additionally, an internal connection port that is electrically connected to an external connection port and to which electronic devices can be connected may be disposed on the valve seat.

In addition, the air respirator is connectable to an external connection port and further includes a loudspeaker that amplifies and outputs a voice signal. A microphone module that collects the user's voice signal is placed on the valve seat, and the microphone module is connected to the loudspeaker through an external connection port. It can be electrically connected to an external connection port to provide a voice signal.

In addition, the microphone module is electrically connected to a voice signal collection unit disposed on the valve seat toward the user to collect voice signals from the user, and penetrates the valve seat in a direction approaching or away from the PCB of the external connection port. It may include one or more pins that can be moved, and an elastic member disposed to exert an elastic repulsion force so that the pins face the PCB.

According to the present invention, an external connection port to which an external device can be connected is placed on the face of the respirator to enable a wired connection between an electronic device installed in the confidential space on the face and an external device, thereby generating information or signals between the electronic device in the confidential space and the external device. It can stably transmit and receive power and can supply power from the outside, making it possible to miniaturize electronic devices by eliminating the need for a separate built-in battery.

Figure 1 is a diagram showing a schematic appearance of an air respirator according to an embodiment of the present invention.
Figure 2 is a diagram showing an exploded view of a respirator facepiece according to an embodiment of the present invention.
Figures 3 (a) and (b) are diagrams showing an example of operation of a pressure indicator according to an embodiment of the present invention.
Figure 4 is a view showing an exploded view between a ventilation unit and a pressure indicator according to an embodiment of the present invention.
Figure 5 is a view showing an exploded view between the respirator face and the positive pressure regulator according to an embodiment of the present invention.
Figure 6 is a view showing an exploded view between the positive pressure regulator and the cable unit of the air respirator according to an embodiment of the present invention.
Figure 7 is a diagram showing an exploded view between a ventilation unit and a voice amplification unit according to an embodiment of the present invention.
Figure 8 is a diagram showing an exploded view of the voice amplifying module in the voice amplifying unit according to an embodiment of the present invention.
Figure 9 is a diagram showing an exploded view of a microphone module according to an embodiment of the present invention.

It should be noted that the technical terms used in the present invention are only used to describe specific embodiments and are not intended to limit the present invention. In addition, the technical terms used in the present invention, unless specifically defined in a different sense in the present invention, should be interpreted as meanings generally understood by those skilled in the art in the technical field to which the present invention pertains, and are not overly comprehensive. It should not be interpreted in a literal or excessively reduced sense. Additionally, if the technical term used in the present invention is an incorrect technical term that does not accurately express the idea of the present invention, it should be replaced with a technical term that can be correctly understood by a person skilled in the art.

Additionally, as used in the present invention, singular expressions include plural expressions unless the context clearly dictates otherwise. In the present invention, terms such as “consists of” or “comprises” should not be construed as necessarily including all of the various components or steps described in the invention, and some of the components or steps are included. It may not be possible, or it may include additional components or steps.

In addition, it should be noted that the attached drawings are only intended to facilitate easy understanding of the spirit of the present invention, and should not be construed as limiting the spirit of the present invention by the attached drawings.

Hereinafter, the air respirator according to the present invention will be examined in more detail with reference to the attached drawings.

Figure 1 is a diagram showing a schematic appearance of an air respirator according to an embodiment of the present invention.

Hereinafter, an air respirator according to an embodiment of the present invention will be schematically reviewed with reference to FIG. 1.

The air respirator according to an embodiment of the present invention is characterized by enabling a wired connection between an electronic device placed in the airtight space on the face side and an external device.

For this purpose, the air respirator according to this embodiment includes a respirator face 100 that is worn on the user's face to form an airtight space, and a positive pressure regulator that is coupled to the respirator face 100 and connected to an air box to supply air to the airtight space. It may be configured to include (200), a pressure indicator (300) corresponding to an electronic device placed in an airtight space, and a cable unit (400) electrically connected to an external device.

The respirator face 100 can be worn on the user's face to form an airtight space isolated from the outside on the user's face. Here, the respirator face 100 may be provided with a strap for wearing, but it is omitted in the drawing. Preferably, the respirator facepiece according to this embodiment can be applied as a full face mask consisting of a transparent window all the way to the bottom to facilitate the user's visibility.

The respirator face 100 may be connected to a positive pressure regulator 200, and the positive pressure regulator 200 may be provided with an air hose 210 connected to a separate air tank. Therefore, the air in the air tank can be supplied to the airtight space formed by the respiratory face 100 through the positive pressure regulator 200.

Various electronic devices can be placed within a confidential space. For example, a pressure indicator 300 may be placed in an airtight space so that a user can easily check the pressure of the air tank. Preferably, such an electronic device can be mounted on the inner surface of the respirator face 100 forming an airtight space.

At this time, an external connection port (170 in FIG. 4) through which external devices can be connected may be disposed on the outer surface of the respirator face so that electronic devices placed in the airtight space can be connected by wire to external devices. A cable unit 400 to which an external device is connected can be connected to the external connection port, and electronic devices placed in the confidential space are electrically connected to the external connection port, so that the electronic devices can be wired and connected to the external device. Accordingly, electronic devices placed in a confidential space can receive power, information, etc. from external devices, and conversely, electronic devices placed in a confidential space can provide signals, etc. to external devices.

Figure 2 is a view showing an exploded view of a respirator face according to an embodiment of the present invention, and Figures 3 (a) and (b) are views showing an example of operation of a pressure indicator according to an embodiment of the present invention. am. And Figure 4 is a diagram showing an exploded view between the ventilation unit and the pressure indicator according to an embodiment of the present invention.

The respirator face 100 of the air respirator according to this embodiment includes a transparent viewing window 110 arranged to cover the user's face and forming a coupling hole 111, and a ventilation unit penetratingly coupled to the coupling hole 111. (130), and a nose mask 150 that is coupled to the ventilation unit 130 on the inside of the viewing window 110 and covers the nose and mouth of the user wearing the respirator facepiece 100 to separate it from other airtight spaces. You can.

The ventilation unit 130 is coupled to the valve seat 131 press-fitted into the coupling hole 111 on the inside (face side) of the viewing window, and the valve seat 131 coupled to the coupling hole 111 on the outside of the viewing window. Includes a seat cover 133 and a seat seal 135 interposed between the valve seat 131 and the seat cover 133 when coupled to form an airtight seal between the valve seat 131 and the seat cover 133. It can be configured as follows.

At this time, the pressure indicator 300 may be mounted on the valve seat 131 disposed inside the viewing window as shown in FIG. 2. The pressure indicator 300 can visually display the pressure information of the air tank. Preferably, the pressure indicator 300 does not block the user's field of view and allows the user to visually check the pressure information provided by the pressure indicator 300. Possibly, it may be mounted on the upper left or upper right side of the valve seat 131.

The pressure indicator 300 can visually display pressure information using a plurality of LED lamps. 3(a) as an example, the pressure indicator 300 may be provided with four LED lamps 311, 313, 315, and 317 to display the pressure in the air tank, and the pressure indicator 300 may be Four LED lamps (311, 313, 315, 317) can be mounted to face the user's face. At this time, in order to prevent the light of the LED lamps (311, 313, 315, 317) from shining directly into the user's eyes, the pressure indicator 300 has four lamps (311, 313, 315, 317) through the viewing window (110). It can be mounted to face, and in this case, a reflective film may be attached to a predetermined area of the viewing window where the light of the lamp is reflected to increase the light reflectance of the lamp.

The pressure indicator 300 may determine the number of LED lamps 311, 313, 315, and 317 that emit light depending on the pressure of the air tank. For example, if the pressure in the air tank is above 225 bar, all four LED lamps (311, 313, 315, 317) emit light, and if the pressure in the air tank is less than 225 bar but more than 150 bar, three LED lamps (313, 315, 317) emit light from the bottom. If the temperature is less than 150 bar or more than 75 bar, two LED lamps (315, 317) emit light from the bottom, and if it is less than 75 bar, one LED lamp (317) at the bottom can emit light. Preferably, the emission colors of each LED lamp (311, 313, 315, and 317) may be different from each other. For example, from the top, the first and second LED lamps 311 and 313 emit green light, the third LED lamp 315 emits yellow light, and the lowest LED lamp 317 emits red light. You can. Therefore, the user can intuitively determine the remaining amount of air in the air tank.

At this time, in the above example, it is explained that four LED lamps are provided, but the number of LED lamps can be changed as needed. For example, as shown in (b) of FIG. 3, the pressure indicator 300 may be equipped with three LED lamps. The pressure indicator 300 may be mounted with three lamps 311', 315', and 317' facing the viewing window 110. In this case, the predetermined area of the viewing window through which the light of the lamp is reflected is determined by the light reflectance of the lamp. A reflective film may be attached to raise the height.

The pressure indicator 300 may determine the number of LED lamps 311', 315', and 317' that emit light depending on the pressure of the air tank. For example, if the air tank pressure is over 150 bar, all three LED lamps (311', 315', 317') emit light, and if it is less than 150 bar but more than 75 bar, two LED lamps (315', 317') emit light from the bottom. , if it is less than 75 bar, the lowest one LED lamp (317') can emit light. Preferably, the emission colors of each LED lamp 311', 315', and 317' may be different from each other. For example, the first LED lamp 311 from the top may emit green light, the second LED lamp 315 may emit yellow light, and the lowest LED lamp 317 may emit red light. Therefore, the user can intuitively determine the remaining amount of air in the air tank.

Meanwhile, as described above, an external connection port 170 to which an external device can be connected may be disposed in the respirator face 100 according to this embodiment. At this time, the external connection port 170 may be placed in the ventilation unit 130 of the respirator face. To be described in more detail with reference to FIG. 4, the external connection port 170 is disposed on the seat cover 133 of the ventilation unit, and the electronic device in the airtight space, that is, the pressure indicator 300, is electrically connected to the external connection port 170. It can be connected to . Here, a separate pressure sensor (not shown) may be placed in the air tank to detect the air pressure in the air tank, and the pressure sensor (not shown) is directly or indirectly connected to the cable unit 400 through the cable unit 400. It can be connected to the external connection port 170. Accordingly, the pressure sensor (not shown) may be connected to the pressure indicator 300 by wire, and thus the air pressure information detected by the pressure sensor (not shown) may be provided to the pressure indicator 300. In addition, a battery (not shown) capable of supplying power may be directly or indirectly connected to the cable unit 400, and thus the pressure indicator 300 may be supplied with power from an external battery (not shown). In this way, the air respirator according to this embodiment can be miniaturized because the electronic device placed in the airtight space can receive power from the outside, and can stably transmit and receive information or signals between the electronic device and the external device.

Preferably, as shown in FIG. 4, a mounting member 1311 on which an electronic device such as a pressure indicator 300 can be mounted may be disposed on the valve seat 131 of the ventilation unit.

Preferably, as shown in FIG. 4, an internal connection port 190 is disposed on the valve seat 131 of the ventilation unit, which is electrically connected to the external connection port 170 and to which an electronic device, that is, a pressure indicator 300, can be connected. You can. Electronic devices such as the pressure indicator 300 may be directly connected to the external connection port 170, but if the internal connection port 190 is provided, they may be connected to the external connection port 170 through the internal connection port 190. there is. For this purpose, an electronic device such as the pressure indicator 300 may be provided with an indicator cable 330 connectable to the internal connection port 190.

Figure 5 is a view showing an exploded view between the face of a respirator and a positive pressure regulator according to an embodiment of the present invention, and Figure 6 is a view showing an exploded view between a positive pressure regulator and a cable unit of an air respirator according to an embodiment of the present invention. This is a drawing.

The air respirator according to this embodiment, like a conventional air respirator, combines a positive pressure regulator 200 with the respirator face 100 to supply air from the air cylinder to the airtight space. To this end, the positive pressure regulator 200 has a hollow cylindrical shape. A protruding insert 230 in a protruding form may be provided, and the ventilation unit 130 of the respirator face may be provided with a coupling port 1331 into which the protruding insert 230 can be inserted and coupled. The protruding insert hole 230 forms an air flow path together with the air hose 210, and the air flow path can communicate with the airtight space by inserting and coupling the protruding insert hole 230 into the coupling hole 1331 of the ventilation unit.

At this time, the cable unit 400 to which the external device is connected is coupled to the positive pressure regulator 200 so that it can be connected to the external connection port 170 when the positive pressure regulator 200 is combined with the ventilation unit 130. ) can be configured integrally with.

Looking at the cable unit 400 in more detail with reference to FIG. 6, the cable unit 400 has a first connection terminal 410 connectable to the external connection port 170 disposed at one end, and one or more external devices at the other end. A second connection terminal 430 that is directly or indirectly connected is disposed, and the first connection terminal 410 and the second connection terminal may be connected to each other through a cable 470. In addition, the cable unit 400 is coupled to the first connection terminal 410 around the protruding insertion hole 230 of the positive pressure regulator and may be provided with a coupling ring 450 formed integrally with the first connection terminal 410. . At this time, as shown in the example shown in FIG. 6, the protruding insert 230 is separable from the body of the positive pressure regulator, and the coupling ring 450 is between the protruding insert 230 when it is coupled to the body of the positive pressure regulator. Can be joined together to wrap around the perimeter of (230). Additionally, the cable unit 400 may further include a cable cover 490 that integrally surrounds and accommodates the air hose 210 and the cable extending from the body of the positive pressure regulator.

Figure 7 is a diagram showing an exploded view between a ventilation unit and a voice amplifying unit according to an embodiment of the present invention, and Figure 8 is a diagram showing an exploded view of an electric module in a voice amplifying unit according to an embodiment of the present invention. It is a diagram, and FIG. 9 is a diagram showing an exploded view of a microphone module according to an embodiment of the present invention.

The air respirator according to this embodiment may be equipped with a voice amplification unit 137 to amplify the user's voice. At this time, a loudspeaker (not shown) may be connected to the external connection port 170 through the cable unit 400. In addition, the voice amplification unit 137 may include a microphone module 1373 that collects the user's voice signal, and the microphone module 1373 is electrically connected to the external connection port 170 to transmit the collected voice signal to a loudspeaker ( (not shown), and a loudspeaker (not shown) can amplify and output the voice signal provided from the microphone module 1373. Here, the voice amplification unit 137 is placed on the valve seat 131 in front of the user's mouth, and the microphone module 1373 penetrates the valve seat 131 and contacts the PCB 171 of the external connection port. You can.

As shown in FIG. 8, the voice amplifying unit 137 may be equipped with a voice amplification module 1371 that amplifies the user's voice. The electromagnetic module 1371 forms the body of the voice amplification unit 137 and includes a module body 1371a coupled to the valve seat 131, a film cover 1371b coupled to face the module body 1371a, and a module body. It may be configured to include a malleable film (1371c) interposed between (1371a) and the film cover (1371b). The malleable film 1371c can amplify the user's voice by amplifying the vibration according to the user's voice. Here, a plurality of through holes are formed in a portion of the module body 1371a, and the film cover 1371b can be coupled to cover the through hole formation area of the module body 1371a. Additionally, the film cover 1371b may also have multiple through holes. Therefore, both sides of the malleable film 1371c are in communication with the outside through a plurality of through holes, so that the user's voice can be transmitted or the amplified voice can be transmitted to the outside. Preferably, the microphone module 1373 may be formed integrally with the electronics module 1371 by being coupled to the module body 1371a.

To describe the microphone module 1373 in more detail with reference to FIG. 9, the microphone module 1373 includes a voice signal collection unit 1373a disposed toward the user in the module body 1371a to collect voice signals from the user, One or more pins (1373b) that are electrically connected to the voice signal collection unit (1373a) and penetrate the valve seat (131) and can move in a direction toward or away from the PCB (171) of the external connection port, and the pin (1373b) is connected to the PCB (1373b). An elastic member 1373c is disposed so that an elastic repulsion force is directed toward (171) to connect the pin 1373b to the PCB 171, and an elastic member 1373c surrounds the exposed portion of the pin 1373b and makes contact with components other than the PCB 171. It may include a pin cover (1373d) that blocks. Therefore, the microphone module 1373 collects the user's voice signal and provides it to an external device (loudspeaker) through the external connection port 170, and can be maintained in contact with the PCB 171 by the elastic member 1373c. .

The above description is merely an illustrative explanation of the technical idea of the present invention, and those skilled in the art will be able to make various modifications and changes without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

100: Respirator facepiece
110: viewing window 111: coupling hole
130: ventilation unit 131: valve seat
1311: Mounting member 133: Seat cover
1331: Coupler 135: Sheet seal
137: Voice amplification unit 1371: Heunseong module
1371a: module body 1371b: film cover
1371c: malleable film 1373: microphone module
1373a: Voice signal collection unit 1373b: Pin
1373c: elastic member 1373d: pin cover
150: Nose mask 170: External connection port
171: PCB 190: Internal connection port
200: positive pressure regulator
210: air hose 230: protruding insertion hole
300: pressure indicator
311, 313, 315, 317: LED lamp 330: Indicator cable
400: Cable unit
410: first connection terminal 430: second connection terminal
450: coupling ring 470: cable
490: Cable cover

Claims (9)

A ventilation unit that forms an airtight space on the user's face and is connected to a positive pressure regulator to receive air into the airtight space from an air tank, and an electronic device placed in the airtight space receives at least one of power and information from an external device. a full-face mask-type respirator facepiece disposed in the ventilation unit and having an external connection port to which the external device can be connected; and
A cable unit having a first connection terminal connectable to the external connection port at one end and a second connection terminal connectable to the external device at the other end,
The cable unit is
a coupling ring coupled around a protruding insertion hole of the positive pressure regulator where the first connection terminal is disposed and inserted into the coupling hole of the ventilation unit;
a cable connecting the first connection terminal and the second connection terminal; and
An air respirator comprising an air hose extending from the positive pressure regulator and a cable cover that integrally surrounds and accommodates the cable.
The method of claim 1, wherein the respiratory facepiece is
An air respirator further comprising a viewing window arranged to cover the user's face and forming a coupling hole through which the ventilation unit penetrates.
The method of claim 2, wherein the ventilation unit
a valve seat coupled to the coupling hole on the airtight space side; and
An air respirator coupled to the valve seat on the opposite side of the airtight space and including a seat cover on which the external connection port is disposed.
delete delete The method of claim 3, wherein the air respirator
a pressure sensor connectable to the external connection port and detecting air pressure in the air tank; and
Further comprising a pressure indicator coupled to the valve seat and displaying air pressure information to the user,
The pressure indicator is an air respirator electrically connected to the external connection port to receive air pressure information from the pressure sensor through the external connection port.
According to claim 3,
An air respirator in which an internal connection port is disposed on the valve seat, which is electrically connected to the external connection port and to which the electronic device can be connected.
According to clause 3. The air respirator is
It is connectable to the external connection port and further includes a loudspeaker that amplifies and outputs a voice signal,
A microphone module for collecting a user's voice signal is disposed on the valve seat, and the microphone module is electrically connected to the external connection port to provide a voice signal to the loudspeaker through the external connection port.
A ventilation unit that forms an airtight space on the user's face and is connected to a positive pressure regulator to receive air into the airtight space from the air tank, and an electronic device placed in the airtight space provides at least one of power and information from an external device. A full-face mask-type respirator is disposed on the ventilation unit so as to receive water and has an external connection port to which the external device can be connected,
The ventilation unit is
a valve seat coupled to the coupling hole on the airtight space side; and
It is coupled to the valve seat on the opposite side of the airtight space and includes a seat cover on which the external connection port is disposed,
A microphone module for collecting a user's voice signal is disposed on the valve seat, and the microphone module is electrically connected to the external connection port to provide the voice signal to a loudspeaker connected through the external connection port,
The microphone module is
a voice signal collection unit disposed from the valve seat toward the user to collect the voice signal from the user;
One or more pins electrically connected to the voice signal collection unit, penetrating the valve seat, and movable in a direction toward or away from the PCB of the external connection port; and
An air respirator including an elastic member disposed to exert an elastic repulsion force so that the pin faces the PCB.