JP2006029616A - Ventilator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilator capable of being thinned in a body. <P>SOLUTION: The ventilator comprises a turbo fan 3 driven by a motor 2 inside; a first air path 7 for feeding from the turbo fan 3 to an indoor side inlet 4 in a body 6 in which the indoor side inlet 4 and an indoor side inlet 5 are provided; and a second air path 8 for feeding from the turbo fan 3 to the indoor side inlet 4. The second air path 8 is provided at the counter suction side of the turbo fan 3, thus thinning the body 6. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a ventilation device that is provided on a wall surface of a room and can be thinned using a turbofan.

  Conventionally, a wall-mounted ventilation fan is known as an example of this type of ventilation device (see, for example, Patent Document 1).

  Hereinafter, the wall-mounted ventilation fan will be described with reference to FIG.

  As shown in the figure, a main body 104 in which a rotating shaft 102 of a motor 101 is attached so as to be substantially perpendicular to an indoor wall surface 103, a motor 101 housed in a duct partially passing through the indoor wall surface 103, and a motor An exhaust centrifugal fan 105 that is fixed to the rotating shaft 102 of 101 and sucks in from the opposite side of the motor 101 side and a fan 107 in which an intake centrifugal fan 106 that sucks in from the motor 101 side is integrated are provided. The supplied airflow is sent to the discharge unit 109 by the intake centrifugal fan 106 and supplied to the room.

  As another conventional example, a pipe fan is known as a means for supplying outside air into a room (see, for example, Patent Document 2).

  Hereinafter, the pipe fan will be described with reference to FIG.

As shown in the figure, the pipe fan 110 is provided in an air vent 113 communicating the indoor 111 and the outdoor 112, driven by a motor 114, and an air intake fan 115 for taking outside air into the room through the air vent 113; A circulation fan 116 is provided that is arranged coaxially with the intake fan 115 and is driven by a motor 114 to suck in air in the room 111 and mix the sucked air with air sucked in by the intake fan 115 and discharge it into the room 111. It was.
JP 58-78031 A (2nd page, 3rd page, FIG. 1) JP 2002-71185 A ([0013] [0014] FIG. 1)

  In such a conventional wall-mounted ventilation fan, a part of the motor 101 is located outside the indoor wall surface 103. However, when the motor 101 and the fan are arranged on the indoor side, the ventilation characteristics are satisfied. However, there is a problem that the main body 104 needs to be formed thick and the main body cannot be formed thin.

  In the pipe fan, the entire motor 114 is housed in the indoor wall. However, when the motor and the fan are arranged on the indoor side, the entire pipe fan is used to satisfy the required air supply characteristics. There is a problem that it is necessary to make the shape thick and it is difficult to reduce the thickness of the pipe fan 110.

  The present invention solves such a conventional problem, and an object of the present invention is to provide a ventilation device capable of reducing the thickness of the main body.

  In order to achieve the above object, the ventilator of the present invention has a turbo fan driven by a motor inside, provided with an outdoor air inlet and an indoor air inlet, and a main body installed on an indoor wall surface; A first ventilation path for sending the air discharged from the turbo fan into the main body, and the air discharged from the turbo fan through the inside of the main body. And a second ventilation path that is sent to the mouth, and the second ventilation path is provided on the anti-suction side of the turbofan.

  By this means, the main body can be made thin, and a ventilation device capable of improving the ventilation efficiency by increasing the air volume can be obtained.

  The other means is configured to expose the motor that drives the turbofan in the second ventilation path.

  By this means, a ventilation device that can enhance the cooling effect of the motor is obtained.

  Another means is that a curved portion is provided at the substantially central portion of the front surface of the main body so that the second ventilation path is widened and bulged.

  By this means, the cooling effect of the motor can be enhanced and the design effect can be enhanced.

  Another means is that the indoor air supply opening is connected to the first indoor air supply opening communicating with the first air passage and the second indoor air supply opening communicating with the second air passage. The first indoor side air inlet and the second indoor side air inlet are separated and formed on the same surface of the main body.

  By this means, a ventilation device is obtained in which the flow resistance is reduced and the ventilation efficiency can be improved.

  Another means is that the first indoor side air inlet and the second indoor side air inlet are partitioned into and communicated with the first air passage and the second air passage.

  By this means, an increase in noise can be prevented.

  The other means is configured to attach the motor to a concave motor mounting plate that can accommodate the motor.

  By this means, a ventilation device in which the ventilation resistance in the second ventilation path is reduced and the ventilation efficiency is improved is obtained.

  The other means is provided with a first indoor air supply port communicating with the first air passage and a second indoor air supply port communicating with the second air passage on different surfaces of the main body. It is.

  By this means, the opening area can be increased and the ventilation efficiency can be improved.

  In another means, the first indoor air supply port is provided on the upper surface of the main body, and the second indoor air supply port is provided on the front surface of the main body.

  This measure makes it possible to take measures against cold drafts and ceiling contamination.

  In another means, a guide portion that blows out the airflow flowing through the second ventilation path in a predetermined direction is provided at the second indoor air supply port.

  This measure makes it possible to take measures against cold drafts and ceiling contamination.

  Another means is that the duct communicating with the outdoor air supply port and the center position of the turbo fan are shifted upward from the center position of the main body, and the space between the turbo fan forming the second ventilation path and the lower surface of the main body is formed. It is formed to spread.

  By this means, the ventilation resistance which can reduce ventilation resistance of a 2nd ventilation path, an air flow flows smoothly, and can improve ventilation efficiency is obtained.

  The other means is provided with an opening / closing means for opening one of the first indoor side air supply port or the second indoor side air supply port and closing the other.

  By this means, it is possible to take measures against a cold draft.

  Further, the other means is provided integrally with an air supply ventilation means constituted by the turbofan and an exhaust ventilation means, and an outdoor exhaust port provided in communication with the exhaust ventilation means is provided on the outdoor side. It is provided in parallel with the air supply port.

  By this means, a ventilation device capable of supplying and exhausting air simultaneously can be obtained.

  ADVANTAGE OF THE INVENTION According to this invention, the ventilation apparatus which can aim at the thinning of a main body and the improvement of ventilation efficiency can be provided.

  Moreover, the ventilation apparatus which can improve the cooling effect of a motor can be provided.

  In addition, increase in noise can be prevented.

  In addition, it is possible to prevent cold drafts and ceiling contamination.

  The invention according to claim 1 of the present invention includes a main body that has a turbo fan driven by a motor therein, has an outdoor air supply port and an indoor air supply port, and is installed on an indoor wall surface, and the main body A first ventilation path for sending the air discharged from the turbo fan to the indoor air supply port, and the air discharged from the turbo fan through the inside of the main body to the indoor air supply port A second ventilation path to be sent, wherein the second ventilation path is provided on the anti-suction side of the turbofan, and one of the air discharged from the two directions on the outer periphery of the turbofan is the first ventilation The air passes through the road, the other passes through the second air passage, and air is supplied from the indoor air supply port. The fan is provided in a shape that covers the front half of the motor. The size in the thickness direction including the turbo fan can be reduced and the main body can be made thinner, and the second ventilation path can be formed using the space on the anti-suction port side of the turbo fan. The air supply characteristic is improved by effectively utilizing this space without increasing the thickness of the main body.

  The invention described in claim 2 is configured such that the motor for driving the turbofan is exposed in the second ventilation path, and the supply airflow passing through the second ventilation path is supplied in contact with the motor. As a result, the cooling effect of the motor is enhanced, and the temperature rise of the motor is alleviated, so that the motor can be miniaturized, and the whole can contribute to the thinning of the main body.

  In the invention according to claim 3, the curved portion is provided at the substantially central portion of the front surface of the main body so that the second air passage is widened, and the second air passage is widened. When the second ventilation path and the motor are exposed, the exposed area of the motor can be increased, and the cooling effect of the motor can be further enhanced.

  In addition, the air flow resistance of the second ventilation path is reduced by expanding to the front part of the main body to improve the air supply characteristic, and the front wall of the main body forms a gentle R to make the main body thin. It has the effect that the design effect can be enhanced.

  According to a fourth aspect of the present invention, there is provided a first indoor air supply port that communicates the indoor air supply port with the first air passage, and a second indoor air supply port that communicates with the second air passage. The first indoor side air inlet and the second indoor side air inlet are formed on the same surface of the main body, and the first indoor side air inlet and the second indoor side By providing the air supply ports in the first ventilation path and the second ventilation path, respectively, the opening area of the first indoor side air supply opening and the second indoor side air supply opening can be increased. In addition, the flow resistance is reduced and the ventilation efficiency is increased.

  In the invention according to claim 5, the first indoor side air supply port and the second indoor side air supply port are partitioned and communicated with the first ventilation path and the second ventilation path. The first ventilation path is communicated with the first indoor side air supply port and the second indoor side air supply port in a state of being partitioned into the first ventilation path and the second ventilation path. The air supply airflows flowing in the road and the second ventilation path are not interfered with each other, and the generation of noise due to the interference can be prevented.

  According to a sixth aspect of the present invention, the motor is attached to a concave motor mounting plate that can accommodate the motor. By reducing the degree of protrusion of the motor into the second ventilation path, the ventilation resistance of the second ventilation path is reduced, and the ventilation efficiency can be increased.

  According to a seventh aspect of the present invention, the first indoor air supply port communicating with the first air passage and the second indoor air supply port communicating with the second air passage are provided on different surfaces of the main body. By providing the positions of the first indoor side air inlet and the second indoor side air inlet on different surfaces of the main body, the first indoor side air inlet and the second indoor side are provided. The air supply air blown out from each of the air supply ports is not interfered with each other, and the air supply air can be distributed throughout the room, and the opening area of each air supply port can be changed. Thus, there is an effect that the ventilation efficiency can be improved by increasing the opening areas of the first indoor-side air inlet and the second indoor-side air inlet.

  In the invention according to claim 8, the first indoor air supply port is provided on the upper surface of the main body, and the second indoor air supply port is provided on the front surface of the main body. When the air supply port and the second indoor air supply port are on the same surface of the main body and are provided on the top surface of the main body, the first indoor air supply port and the second indoor air supply port The air blown out from the mouth is directed to the ceiling surface, and depending on the installation location of the main body, the ceiling surface may be soiled, or the first indoor side air inlet and the second indoor side air inlet may be connected to the main body. When it is provided on the front surface, there is an effect that it is possible to take measures to alleviate the fact that depending on the installation location of the main body, the occupant is given a cold draft feeling.

  According to a ninth aspect of the present invention, a guide portion that blows out the airflow flowing through the second ventilation path in a predetermined direction is provided at the second indoor-side air supply port. The air supply from the mouth is smoothly guided and supplied in the specified direction by the guide, and the airflow is blown toward the ceiling surface by giving the residents a cold draft feeling by adjusting the wind direction. Thus, it is possible to take measures such as reducing dirt on the ceiling surface.

  In the invention according to claim 10, the center position of the duct and the turbo fan communicating with the outdoor air supply port is shifted upward from the center position of the main body, and the space between the turbo fan forming the second ventilation path and the lower surface of the main body The flow of air flowing into the second ventilation path is smoothly performed without increasing the thickness of the main body, reducing the ventilation resistance and improving the ventilation efficiency. Have

  The invention according to claim 11 is provided with an opening / closing means for opening one of the first indoor side air supply port or the second indoor side air supply port and closing the other. By closing either the first indoor-side air inlet or the second indoor-side air inlet as needed, it is possible to reduce the airflow toward the occupant and to give a cold draft feeling. In addition, it has an effect that noise countermeasures can be taken.

  According to a twelfth aspect of the present invention, an outdoor exhaust port provided integrally with an air supply ventilation means and an exhaust ventilation means constituted by the turbofan and provided in communication with the exhaust ventilation means. Are provided side by side with the outdoor air supply port, and by providing ventilation means for supplying and exhausting air together, air can be supplied and exhausted simultaneously with a single duct. It has the action.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1, a turbo having a shape that substantially covers the front half of the motor 2 so as to be mounted by a motor mounting plate 1 inside and driven by a motor 2 whose rotation axis is perpendicular to the wall surface 10. It has a fan 3, an outdoor air supply port 4 and an indoor air supply port 5 are provided to form a main body 6, and air supply air discharged upward from a turbo fan 3 provided in the main body 6 is supplied to the indoor air supply The first ventilation path 7 that is sent directly to the port 5 and the second ventilation path 8 that sends the air flow discharged downward from the turbo fan 3 through the inside of the main body 6 to the indoor air supply port 5 are connected to the turbo fan 3. The motor 6 to be driven is exposed, a filter 9 is provided on the windward side of the turbo fan 3, and the main body 6 is attached to the wall surface 10 so that the outdoor air supply port 4 communicates with the duct 11 embedded through the wall surface 10. Install and configure.

  In the above configuration, when the ventilator is operated, the turbo fan 3 is driven by the motor 2, outdoor air is sucked through the duct 11, dust in the air is removed by the filter 9, and the purified air is removed from the turbo fan 3. The air is supplied into the room from the indoor side air inlet 5 through the first air passage 7 from the upper side of the air, and the motor 2 is contacted from the lower side of the turbofan 3 through the second air passage 8. The air that has cooled the motor 2 is supplied into the room through the indoor air supply port 5.

  One of the air discharged from the two directions on the outer periphery of the turbofan 3 passes through the first ventilation path 7 and the other passes through the second ventilation path 8 and is supplied from the indoor air supply port 5. In other words, the amount of air supplied increases compared to the case where the air is supplied from only one direction of the fan, and the turbo fan 3 is provided in a shape that covers the front half of the motor 2, so that the motor 2 and the turbo fan 3 are provided. Therefore, the thickness of the main body 6 can be reduced, and the second ventilation path 8 can be formed using the space on the side opposite to the suction side of the turbofan 3. It is not necessary to increase the thickness.

  Further, the supply airflow passing through the second ventilation path 8 is supplied in contact with the motor 2, whereby the cooling effect of the motor 2 is enhanced and the temperature rise of the motor 2 is alleviated. It is possible to reduce the size of the main body 6 and contribute to the thinning of the main body 6 as a whole.

(Embodiment 2)
As shown in FIG. 2, the second air passage 8A is widened so that a curved portion 12 is provided at a substantially central portion of the front surface of the main body 6A, and the indoor air supply port 5A is connected to the first air passage. The first indoor side air inlet 13 communicating with 7A and the second indoor side air inlet 14 communicating with the second ventilation path 8A are separated, and the first indoor side air inlet 13 and second The indoor air supply port 14 is formed on the same surface of the main body 6A.

  In the above configuration, when the ventilator is operated, one of the outside air sucked into the turbofan 3 passes through the first ventilation path 7A and is supplied into the room from the first indoor-side air inlet 13, and the other is Then, the air is supplied into the room through the second ventilation path 8A and is ventilated from the second indoor side air supply opening 14 provided on the same surface as the first indoor side air supply opening 13.

  And since the substantially central part of the front surface of the main body 6A bulges out so as to provide the curved portion 12, and the second ventilation path 8A is widened, the ventilation rate is increased and the ventilation efficiency is improved. The amount of exposure of the motor 2 exposed to the ventilation path 8A can be increased, and the cooling effect of the motor 2 is further enhanced.

  Further, since the central portion of the front surface of the main body 6A is bulged by the curved portion 12, the front wall of the main body 6A is gently curved, and the design effect is enhanced.

  In addition, the first indoor side air supply port 13 and the second indoor side air supply port 14 are provided independently of each other by the first ventilation path 7A and the second ventilation path 8A. The opening area can be increased by the one indoor-side air supply port 13 and the second indoor-side air supply port 14, and the flow resistance is reduced, thereby improving the ventilation efficiency.

  Further, the first indoor side air supply port 13 and the second indoor side air supply port 14 communicate with each other in a state of being partitioned by the first air passage 7A and the second air passage 8A, thereby The supply airflows flowing through the ventilation path 7A and the second ventilation path 8A are not interfered with each other, and the generation of noise due to the interference can be prevented.

(Embodiment 3)
As shown in FIG. 3, a configuration is adopted in which the motor 2A that accommodates the motor 2A is attached by a concave motor attachment plate 1A so that the degree of projection of the motor 2A that drives the turbofan 3A into the second ventilation path 8B is reduced.

  In the above configuration, when the ventilator is operated, the turbo fan 3A is driven by the motor 2A, and the turbo fan 3A is supplied from the indoor air supply port 5B through the first ventilation path 7B, one of the turbo fan 3A. The air is supplied from the indoor air supply port 5B through the second ventilation path 8B.

  Then, by reducing the amount by which the motor 2A protrudes into the second ventilation path 8B, the ventilation resistance of the second ventilation path 8B is reduced, and the blade 15 of the turbo fan 3A is replaced with the concave motor mounting plate 1A. By being able to be formed so as to be long, the ability of the turbofan 3A is improved, and the ventilation efficiency is increased.

(Embodiment 4)
As shown in FIG. 4, the first indoor side air inlet 13A is provided on the upper surface 16 of the main body 6B, and the second indoor side air inlet 14A is provided on the front surface 17 of the main body 6B. The air supply port 13A and the second indoor air supply port 14A are provided on different surfaces of the main body 6B, and the air flow flowing through the second ventilation path 8C communicating with the second indoor air supply port 14A is blown in a predetermined direction. The guide portion 18 is provided in the second indoor air supply port 14A, and the center position (a) of the duct 11A and the turbofan 3B communicating with the outdoor air supply port 4A is located above the center position (b) of the main body 6B. The space 19 between the turbo fan 3B forming the second air passage 8C and the lower surface of the main body 6B is formed to be widened.

  In the above configuration, when the ventilator is operated, the turbo fan 3B is driven by the motor 2, and the first indoor side air supply provided on the upper surface 16 of the main body 6B through the first ventilation path 7B from one side of the turbo fan 3B. Air is supplied from the port 13A, sent from the other side of the turbo fan 3B through the space 19 to the second ventilation path 8C, and supplied from the second indoor side air supply port 14A provided on the front surface 17 side of the main body 6B. I care. At this time, air is supplied in a predetermined direction by the guide portion 18 provided in the second indoor-side air supply port 14A.

  Then, by providing the positions of the first indoor side air supply port 13A and the second indoor side air supply port 14A on different surfaces of the main body 6B, the first indoor side air supply port 13A and the second indoor side air supply port 14A are provided. The air openings 14A are not interfered with each other, and the opening areas of the first indoor air supply opening 13A and the second indoor air supply opening 14A can be changed, thereby improving the ventilation efficiency by increasing the opening area. Can be achieved.

  When the main body 6B is installed near the ceiling by providing the first indoor air supply port 13A on the upper surface 16 of the main body 6B and the second indoor air supply port 14A on the front surface 17 of the main body 6B. Since only the first indoor air supply port 13A faces the ceiling, dirt on the ceiling is alleviated, and only the second indoor air supply port 14A is provided on the front surface 17 of the main body 6B. The air supply air from the indoor air supply opening 14A is smoothly guided and supplied in a predetermined direction by the guide unit 18, and by adjusting the air direction, a cold draft is given to the occupant and the ceiling It is possible to take measures such as reducing the amount of blown air to the surface and alleviating dirt on the ceiling surface.

  Further, the duct 11A communicating with the outdoor air supply port 4B and the center position (a) of the turbo fan 3B are shifted upward from the center position (b) of the main body 6B, and the turbo fan 3B forming the second ventilation path 8C. By forming so that the space 19 with the lower surface of the main body 6B is widened, the flow of the air flowing into the second ventilation path 8C is improved without increasing the thickness dimension of the main body 6B, and the ventilation resistance is also reduced. Ventilation efficiency will also be improved.

(Embodiment 5)
As shown in FIG. 5, an opening / closing means 20 is provided to open one of the first indoor air supply port 13B or the second indoor air supply port 14B and close the other.

  In the above configuration, when the ventilator is operated with the second indoor-side air inlet 14B closed by the opening / closing means 20 and the first indoor-side air inlet 13B opened, the turbo fan 3B driven by the motor 2 is used. The air supply from the air passes only through the first ventilation path 7B and is supplied from the first indoor air supply port 3B. Further, by operating the opening / closing means 20 to close the first indoor air supply port 13B and to open the second indoor air supply port 14B, the air supply from the turbo fan 3B is supplied to the second ventilation path. The air flows only to 8B and is supplied from the second indoor-side air supply port 14B.

  Then, either one of the first indoor side air supply port 13B or the second indoor side air supply port 14B is closed by the opening / closing means 20, thereby reducing the air flow toward the occupant and giving a cold draft feeling. As a result, noise countermeasures can be taken.

(Embodiment 6)
As shown in FIG. 6, an air supply ventilation means 22 and an exhaust ventilation means 23 configured by a turbofan are integrally provided so that an outdoor exhaust port 21 is provided in parallel with the outdoor supply port 4 </ b> C. The outdoor hood 27 is provided on the outdoor side of the two-layer pipe duct 26 so as to communicate with the outside through the two-layer pipe duct 26 penetrating the wall surface 10 </ b> A and provided with an air supply path 24 and an exhaust path 25.

  In the above configuration, when the ventilator is operated, outside air is taken in from the air supply path 24 of the two-layer pipe duct 26 by the air supply ventilation means 22 and is supplied into the room, and indoor air is supplied by the exhaust ventilation means 23. The air is exhausted to the outside through the exhaust passage 25 of the two-layer pipe duct 26, and air supply and exhaust can be performed simultaneously.

  And by providing the ventilation means 22 for supply air and the ventilation means 23 for exhaust gas integrally, it becomes possible to supply and exhaust air simultaneously with one two-layer pipe duct 26, and to the wall at the time of piping construction work. Since the drilling work is no more than one place, the construction is saved. In addition, the outdoor hood can be handled with a single unit, which improves the exterior. In addition, since the exhaust path ventilation means 23 has a smaller air path pressure loss than the supply air ventilation means 22, the exhaust ventilation means 23 can be made as thin as the supply air ventilation means 22 and the thickness of the supply air ventilation means 22 can be reduced. By arranging the air ventilation means 22 and the exhaust ventilation means 23 in parallel, the main body including the air supply ventilation means 22 and the exhaust ventilation means 23 can be thinned.

  By using means for forming the first ventilation path and the second ventilation path with one turbo fan in the main body, the present invention can be applied to the use of a ventilation fan incorporating a heat exchanger.

Sectional drawing which shows the installation state of the ventilation apparatus of Embodiment 1 of this invention Sectional drawing which shows the installation state of the ventilation apparatus of Embodiment 2 of this invention Sectional drawing which shows the installation state of the ventilator of Embodiment 3 of this invention Sectional drawing which shows the installation state of the ventilator of Embodiment 4 of this invention Sectional drawing which shows the installation state of the ventilator of Embodiment 5 of this invention Sectional drawing which shows the installation state of the ventilator of Embodiment 6 of this invention Sectional drawing which shows the installation state of the conventional ventilation fan for wall mounting Sectional drawing which shows the installation state of the conventional pipe fan

Explanation of symbols

1A motor mounting plate 2 motor 2A motor 3 turbo fan 3A turbo fan 3B turbo fan 4 outdoor air supply port 4A outdoor air supply port 4C outdoor air supply port 5 indoor air supply port 5A indoor air supply port 6 main body 6A Main Body 6B Main Body 7 First Ventilation Path 7A First Ventilation Path 8 Second Ventilation Path 8A Second Ventilation Path 8B Second Ventilation Path 8C Second Ventilation Path 10 Wall 11A Duct 12 Curved Section 13 First Indoor air supply port 13A First indoor air supply port 13B First indoor air supply port 14 Second indoor air supply port 14A Second indoor air supply port 14B Second indoor air supply port 16 upper surface 17 front surface 18 guide portion 19 space 20 opening / closing means 21 outdoor exhaust port 22 air supply ventilation means 23 exhaust ventilation means

Claims (12)

A turbo fan driven by a motor inside, a main body installed on an indoor wall surface with an outdoor air inlet and an indoor air inlet, and wind discharged from the turbo fan in the main body A first ventilation path for sending to the indoor air supply port; and a second ventilation path for sending the wind discharged from the turbofan to the indoor air supply port through the inside of the main body, A ventilator provided with two ventilation paths on the anti-suction side of the turbofan. The ventilator according to claim 1, wherein a motor for driving the turbofan is exposed in the second ventilation path. The ventilator according to claim 1 or 2, wherein a curved portion is provided at a substantially central portion of the front surface of the main body so that the second ventilation path is widened and bulged. The indoor air supply port is separated into a first indoor air supply port communicating with the first air passage and a second indoor air supply port communicating with the second air passage. The ventilator according to any one of claims 1 to 3, wherein the indoor air supply port and the second indoor air supply port are formed on the same surface of the main body. The ventilator according to claim 4, wherein the first indoor-side air inlet and the second indoor-side air inlet are partitioned into and communicated with the first ventilation path and the second ventilation path. The ventilation device according to claim 1, wherein the motor is attached to a concave motor mounting plate that can accommodate the motor. The first indoor side air supply port communicating with the first air passage and the second indoor side air supply port communicating with the second air passage are provided on different surfaces of the main body. Ventilation device according to. The ventilator according to claim 7, wherein the first indoor-side air supply port is provided on the upper surface of the main body, and the second indoor-side air supply port is provided on the front surface of the main body. The ventilator according to claim 4, 5, 7, or 8, wherein a guide portion that blows out the airflow flowing through the second ventilation path in a predetermined direction is provided at the second indoor air supply port. 2. The duct communicating with the outdoor air supply port and the center position of the turbo fan are shifted upward from the center position of the main body, and the space between the turbo fan forming the second ventilation path and the lower surface of the main body is widened. The ventilation apparatus in any one of -9. The ventilator according to claim 4, further comprising an opening / closing means for opening one of the first indoor air supply port and the second indoor air supply port and closing the other. An air supply ventilation means and an exhaust ventilation means constituted by the turbofan are integrally provided, and an outdoor exhaust port provided in communication with the exhaust ventilation means is provided in parallel with the outdoor air supply opening. The ventilation apparatus in any one of Claims 1-11 provided.

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