KR200310054Y1 - Low-noise fan - Google Patents

Abstract

A low noise ventilation device is disclosed. The low noise ventilation device of the present invention is to reduce the noise caused by various kinds of noises generated by the conventional ventilation device, in particular, the electric motor grille installed on the ceiling or wall of the space for the purpose of ventilation; An exhaust pipe configured to connect the grill and one side to be separated to form an exhaust path to the main exhaust pipe; And a fan unit which is coupled to the rotating shaft of the electric motor to provide an intake force. The fan unit is configured to separate the grill and the fan and use an exhaust pipe having sound absorption performance, and noise generated from the fan and the electric motor, and noise introduced from the outside. In addition, the noise caused by the aging of the electric motor and the vibration of the electric motor during vibration of the electric motor are reduced, and the noise problem is solved. It can increase the ventilation capacity, and it is possible to separate each component to reduce the cost when replacing, as well as to reduce the space required when installing the ventilation device, and to provide the safety and ease of installation.

Description

Low noise ventilation unit {LOW-NOISE FAN}

The present invention relates to a ventilation device for ventilating the internal air by discharging the toilet or bathroom and other polluted air to the outside, and more particularly relates to a ventilation device for intake using an electric motor to exhaust through the main exhaust pipe.

Conventional ventilation device is a flexible hose made of aluminum material as an integral grill (2) made integrally of the electric motor (6) to which the grill (4) and the fan (4) to which air is introduced, integrally, It is composed of a fire damper and a band, and the air is sucked out by the suction force provided by the integrated grill 2 to discharge. In addition, the ventilation device is installed in the integrated grill (2) on the ceiling 200, as shown in Figure 2 shows the installation of a conventional ventilation device and flexible to the damper 40 attached to the integrated grill (2) and the main exhaust pipe (80). It is common to install by connecting with a hose (12).

However, in the form of the integrated grill 2 shown in FIG. 1, noise is generated in a space for ventilation due to air friction noise generated when the fan 6 rotates and noise generated by the electric motor. Due to aging, the noise of the electric motor itself is increased and the noise due to the vibration of the ceiling 200 and the wall and the electric motor in contact with the grill increases with the noise and the vibration at the same time.

Therefore, when using an electric motor with a high rotational speed to increase the intake force or discharge capacity or increasing the capacity of the fan, the noise is further increased, and the replacement capacity is not sufficiently increased. There is a problem in that maintenance costs are high because the entire integrated grill 2 including the electric motor needs to be replaced.

In addition, in terms of the construction of the ventilation device, the integrated grill 2 has a height of 100 mm to 150 mm basically due to the fan and the electric motor, and the flexible hose 12 needs space to change direction, so that the height of 300 mm or more is increased. The flexible hose 12 is also required to include a direction changer 60 for preventing bending of the flexible hose 12 having the shape shown in FIG. 2 and preventing backflow from being introduced from the outside. You need more space than you need to convert. That is, the rear space of the ceiling 200 is required to be 300mm or more, and below it is difficult to install the ventilation device and the electrical wiring for inputting electricity to the electric motor is possible after the ceiling 200 is installed the grill is installed. In addition, when the integrated grille 2 is attached to the ceiling 200, there is a difficulty in connecting the electric motor and the electric wiring through a narrow space, and in particular, the electric wiring is exposed to the ceiling 200 as it is, so that the electric leakage and other electric Risk of accident

The low noise ventilation device of the present invention was devised to solve the above problems, and the noise generated from the fan and the electric motor is naturally reduced by separating the electric motor with the grill and the fan and using the exhaust pipe having sound absorption performance. The purpose of the present invention is to provide a ventilation device which is inexpensive and easy to maintain and at the same time easy to install and thus secure electric wiring.

1 is a view showing the structure of a conventional ventilation device.

2 is a view showing the installation of a conventional ventilation device.

Figure 3 is a view showing the structure of the present invention low noise ventilation device.

Figure 4 is a view showing the installation of the low noise vent device of the present invention.

*** BRIEF DESCRIPTION OF THE DRAWINGS ***

2: integrated grill 10: grill

12: flexible hose 20: exhaust pipe

30: Fan 40: Damper

60: direction switch 80: main exhaust pipe

200: ceiling 310: frame

320: fan 330: power input line

340: drilling 350: electric motor

360: fixed part

The low noise ventilation device of the present invention to achieve the object of the above-described design, the grill is installed on the ceiling or wall of the space for the purpose of ventilation; An exhaust pipe configured to connect the grill and one side to be separated to form an exhaust path to the main exhaust pipe; And the other side and one side of the exhaust pipe is connected so as to be separated and the main motor and the other side is coupled to the fixed and the motor is inserted into and fixed to the inside of the frame to drive the rotating shaft by the electric energy supplied from the outside and the It includes a fan unit consisting of a fan coupled to the rotary shaft of the electric motor to provide an intake force, in particular the exhaust pipe is combined with the synthetic fiber assembly having a predetermined width along the coil-shaped goal line from the inside and outside to provide compression, extension and flexibility An air pipe forming a cylindrical cylinder; Sound absorbing material which is located on the outside of the air tube and made of copolymer fibers surrounding the whole of the air tube to a predetermined thickness and attenuates noise and vibration; And an outer finishing material positioned outside the sound absorbing material to prevent the external outflow of the fluid and protecting the air pipes and the sound absorbing material therein.

In addition, the grill is preferably used to combine the direction of the bending portion for switching the direction of the flow path 90 degrees to prevent the inflow of air from the main exhaust pipe to the place for the purpose of ventilation. It is preferable to further include a; anti-wind shutter for.

In addition, one side is coupled to the other side of the fan portion and the other side is coupled to the main exhaust pipe to further prevent the toxic gas generated in the fire from the main exhaust pipe; It further preferably comprises a.

Hereinafter, exemplary embodiments of the present invention low noise ventilation device will be described in detail with reference to the accompanying drawings.

3 is a view showing the structure of the present invention low noise ventilation device. As shown in FIG. 3, the inventive low noise ventilation device includes a grill 10, an exhaust pipe 20, a fan part 30, a band 50, and the like, and includes a direction change part (not shown), a damper 40, and the like. It is configured to further include a band (not shown).

The grill 10 is an inlet through which air is introduced in a general ventilation device, and in the present invention, the grill 10 is installed on a ceiling or a wall of a space for venting, and serves as an inlet through which air is introduced. At this time, the grill 10 is not limited to any particular grill, and when installed on a ceiling or a wall, the space side has a predetermined design to enhance aesthetics, and the other side forms a tube of a constant length to be connected to the exhaust pipe 20 and the like. do.

The length of the tube is not limited to the length, but preferably has a length between 30 mm and 50 mm. In particular, the grill 10 is easy to connect when connected to the exhaust pipe 20, as shown in Figure 4 and the direction change direction is switched to 90 degrees to prevent bending when switching the direction of the exhaust pipe 20 It can be integrally coupled with the unit 60 and the direction change unit 60 has a form in which the pipe is bent at 90 degrees in the form of a pipe.

In addition, the direction switching unit 60 may further include a backwind prevention shutter 62 to block the inflow of air from the main exhaust pipe in the reverse direction when the ventilation device is not driven, the backwind prevention shutter 62 is generally There are gravity type and wind type, and the anti-wind shutter used in the present invention is not limited to any specific type, and can be used during gravity or wind type, and the type shown in FIG. 4 is a anti-wind shutter using gravity type. .

The exhaust pipe 20 serves to form a flow path from the grill 10 to the main exhaust pipe so that air introduced through the grill 10 can be discharged through the main exhaust pipe. In this case, the exhaust pipe 20 may use a flexible hose made of aluminum and generally use a duct used to form a flow path in a ventilation device, but in particular, a synthetic fiber assembly having a predetermined width along a coil-shaped valley line. Air pipe to form a cylinder having a compression, extension and flexibility by combining the inside and the outside, located on the outside of the air pipe and wraps the entire air pipe to a predetermined thickness and noise and vibration and noise and vibration generated in the air pipe It is preferable to use a flexible duct excellent in sound absorbing power and flexibility consisting of a sound absorbing material made of a copolymer fiber to attenuate and an outer finishing material located on the outside of the sound absorbing material to prevent the outflow of the fluid and protect the inner air pipe and the sound absorbing material. .

The fan unit 30 is composed of a frame 310 having a predetermined length in the form of a cylindrical tube, a fan made of a plurality of wings (fan, 320) and an electric motor for rotating the fan 320, one side of the main Is connected to the exhaust pipe 20, the connection portion is fixed to the band and the other side is coupled to the main exhaust pipe to the damper 40. At this time, the coupling with the main exhaust pipe to the damper 40 preferably has a structure in which the fan portion 30 is inserted into the socket shape, and the coupling between the fan portion 30 and the main exhaust pipe to the damper 40 provides a predetermined fastening means. Can be used to reinforce the bond.

The frame 310 has a fixing part 360 that can be fixed by inserting the electric motor 350 coupled to the fan 320 in the inner space as shown in FIG. As shown in FIG. 3, a perforation 340 may be inserted into the power input line 330 for inputting power to the electric motor 350 that is inserted and fixed inside the mold 310. At this time, the perforation 340 is preferably a rubber material further includes a packing to fill the space generated after the power input line 330 is inserted into the elastic material.

The fan 320 and the electric motor 340 may use a fan and an electric motor generally used in a ventilation device, and are not limited to any specific fan or electric motor.

Therefore, by separating the electric motor combined with the grill and the fan, the noise generated from the fan and the electric motor is naturally reduced to increase the capacity of the fan or use an electric motor with a high rotational speed. A device can be provided.

The damper 40 is coupled to the main exhaust pipe to connect the main exhaust pipe and the exhaust pipe 20 to form a flow path through which the air introduced through the ventilation device is discharged to the main exhaust pipe and to perform a specific function. To pest prevention dampers.

The inlet blocking damper is a damper of the type in which the damper is closed by closing the damper at a predetermined temperature in order to prevent the toxic gas generated in the fire from being introduced through the exhaust pipe 20. 80 is meshed to the damper in order to prevent entering the space for the purpose of ventilation through the exhaust pipe (20). 3 is an inlet blocking damper.

The grill 10, the exhaust pipe 20, the fan part 30, and the damper 40 described above may be separated and combined in independent forms, respectively, and the grill 10, the exhaust pipe 20, and the exhaust pipe 20 may be separated from each other. Coupling of the fan portion 30 is preferably combined using a band, but is not necessarily limited to the band can be maintained in the connection portion of the grill 10 and the exhaust pipe 20 and the exhaust pipe 20 and the fan portion 30. Various forms of coupling means can be used.

Therefore, when repairing or replacing, each of them can be repaired or replaced, so the ventilation device can be easily maintained and the cost of maintenance can be reduced.

Figure 4 is a view showing the installation of the low noise vent device of the present invention. As shown in FIG. 4, the low noise ventilation device of the present invention is provided with a grill 10, which is an inlet of internal air, on a wall or a ceiling 200 of a space for ventilation, such as a toilet, a bathroom, or a smoking place. At this time, the grill 10 of the type shown in FIG. 4 has a grille and a direction change unit 60 in an integrated form, and also includes an anti-wind shutter 62. The grill 10 is connected to the exhaust pipe 20 to form an exhaust path to the main exhaust pipe 80, one side is coupled to the other side of the fan portion 30 is coupled to the damper 40 installed in the main exhaust pipe (80) Exhaust is made to the main exhaust pipe 80 in the space by the intake force provided at 30. 4 is a shape including a grill 10 and a damper 40 in which the turning part 60 is integrated, but is not necessarily limited thereto, and the exhaust pipe 20 and the exhaust pipe 20 are not necessarily limited thereto. The damper 40 may also be directly connected, and the fan unit 30 may be directly coupled to the main exhaust pipe 80 without the damper 40. In this case, the fan unit 30 and the damper 40 may be attached to the main exhaust pipe 80 before the ceiling construction, and the electrical wiring may be made even before the ceiling construction. Since the electrical safety is high because it is not made, as can be seen in FIG. It is possible to install the ventilation device even if the rear space of the ceiling or the wall is secured only about 200 mm.

Although the present invention described above has been described in detail only with respect to the specific examples described, it will be apparent to those skilled in the art that various modifications and changes are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended claims of utility model registration. Is a matter of course.

As described above, the low noise ventilation device of the present invention separates an electric motor with a grill and a fan, and is coupled to a damper to reduce noise generated by the fan and the electric motor, and the capacity of the fan due to the noise reduction or rotation of the electric motor. It is possible to increase the exhaust capacity of the ventilator by increasing the number, and the maintenance cost is reduced because each component constituting the ventilator can be separated and combined. In addition, by using a flexible duct excellent in sound absorption as an exhaust pipe, there is an effect of reducing noise generated from the outside as well as other generated noise.

In addition, if the space of the ceiling or wall surface is secured only for the flexible hose or the duct, the ventilation device can be installed and the electrical wiring necessary for the ventilation device can be installed before the ceiling construction. Since it is easy to install and electric wiring is not left on the ceiling, electric leakage prevention and wire protection are easy.

Claims (5)

A grill installed on the ceiling or wall of the space for ventilation purposes; An exhaust pipe configured to connect the grill and one side to be separated to form an exhaust path to the main exhaust pipe; And The other side and one side of the exhaust pipe is connected so as to be separated and the main motor and the other side is connected to the fixed and the motor is inserted into and fixed to the inside of the frame to drive the rotating shaft by the electric energy supplied from the outside and the electric Low noise ventilation device comprising a; fan portion made of a fan coupled to the rotating shaft of the motor to provide the intake force The method of claim 1, wherein the exhaust pipe An air pipe that combines a synthetic fiber assembly having a predetermined width along the coil-shaped goal line from the inside and the outside to form a cylinder having compression, extension, and flexibility; Sound absorbing material which is located on the outside of the air pipe and surrounds the whole of the air pipe to a predetermined thickness and made of copolymer fibers to attenuate the noise and vibration generated in the exhaust device and the noise and vibration generated in the air pipe; And Low outside ventilating device, characterized in that formed on the outside of the sound absorbing material to prevent the outflow of the fluid and to protect the inner air pipe and the sound absorbing material. The method of claim 1, wherein the grill Low-ventilation ventilating device characterized in that the combination of the turn direction of the bending direction for switching the direction of the flow path 90 degrees. The method of claim 3, wherein the direction change unit Low-ventilating ventilator further comprises a; anti-wind shutter to prevent the air from flowing into the place for the purpose of ventilation from the main exhaust pipe. The method of claim 1, One side is coupled to the other side of the fan portion and the other side is coupled to the main exhaust pipe inlet blocking damper to prevent the toxic gas generated in the fire from the main exhaust pipe; further comprising a low noise ventilation apparatus.