JP2020190343A - Ventilation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation device capable of reliably sucking indoor air by a fan without being greatly affected by outdoor wind pressure, mixing it with outdoor air, and blowing it indoors. SOLUTION: A device main body 10 of a ventilation device 3 has an outdoor side introduction port 12a for introducing outdoor air, an indoor side introduction port 13a for introducing indoor air, and mixed air of outdoor air and indoor air. It has an air outlet 15a for blowing out air. The fan 20 installed in the apparatus main body 10 sucks the outdoor air and the indoor air from the suction port 24, and discharges the mixed air of the outdoor air and the indoor air to the air outlet 15a. In the apparatus main body 10, partition walls 35 and 36 extending to the suction port 24 of the fan 20 are arranged. The partition walls 35 and 36 provide an outdoor air passage 37 that guides outdoor air from the outdoor side introduction port 12a to the suction port 24, and an indoor air passage 38 that guides indoor air from the indoor side introduction port 13a to the suction port 24. , Is isolated. [Selection diagram] FIG. 5A

Description

The present invention relates to a ventilation device that takes in outdoor air indoors using a fan.

Ventilators that maintain a clean indoor environment by blowing fresh outdoor air indoors using a fan are known. In such a ventilation device, especially in a situation where the interior is heated in cold weather, the cold air outside is discharged indoors, which causes dew condensation or the cold air hits the feet of the resident, causing discomfort.

Therefore, in the ventilation device disclosed in Patent Documents 1 and 2, the device main body has an indoor side introduction port for introducing indoor air in addition to the outdoor side introduction port for introducing outdoor air. The outdoor air and the indoor air are mixed in the space inside the ventilation device, and this mixed air is sucked into the suction port of the fan and blown indoors from the air outlet of the device main body.
According to the above-mentioned ventilation device, cold outdoor air is mixed with warm indoor air and supplied indoors in cold weather, so that the cold air can be softened, and dew condensation occurs or the cold air hits the feet of the resident. Can be suppressed.

Japanese Unexamined Patent Publication No. 2000-274784 Japanese Unexamined Patent Publication No. 2005-133961

In the ventilation device disclosed in Patent Documents 1 and 2, since a space for mixing outdoor air and indoor air exists in the device main body, the mixing ratio of outdoor air and indoor air is adjusted by the outdoor wind pressure. It will be greatly affected. For example, when the outdoor wind pressure is high, the outdoor air presses on the indoor air, and as a result, the ratio of the outdoor air becomes abnormally high, preventing the above-mentioned dew condensation and cold air at the feet of the resident. Can't be done.

The present invention has been made to solve the above problems, and includes an outdoor side introduction port for introducing outdoor air, an indoor side introduction port for introducing indoor air, and outdoor air and indoor air. A hollow device main body having an outlet for blowing out mixed air, and a mixed air of outdoor air and indoor air installed in the device main body and sucking the outdoor air and the indoor air from a suction port. In a ventilation system equipped with a fan that discharges air to the air outlet.
Further, an outdoor air passage which is arranged in the main body of the apparatus and extends to the suction port of the fan is provided, and the partition wall guides the outdoor air from the outdoor side introduction port to the suction port. The indoor air passage that guides the indoor air from the indoor side introduction port to the suction port is isolated.

According to the above configuration, since the outdoor air and the indoor air are not mixed up to the suction port of the fan by the partition wall, the indoor air is surely sucked by the fan without being greatly affected by the outdoor wind pressure, and the outdoor air is taken in. It can be mixed with air and blown indoors. Therefore, even when the outdoor wind pressure is high in cold weather, the temperature of the mixed air can be surely higher than the temperature of the outdoor air, and as a result, dew condensation can be prevented and cold air can be prevented from hitting the feet of the resident. it can.

Preferably, the apparatus main body is formed in an elongated shape, the rotation axis of the fan extends along the longitudinal direction of the apparatus main body, and the partition wall extends in the longitudinal direction of the apparatus main body, and one end thereof of the fan. The outdoor air passage and the indoor air passage include a first partition wall portion leading to the suction port and a second partition wall portion extending at least a part in a direction intersecting the longitudinal direction of the apparatus main body. Each has a fan-side passage portion isolated by the first partition wall portion.
According to the above configuration, the outdoor air and the indoor air flow along the rotation axis of the fan while being isolated from each other and are sucked into the fan, so that the indoor air can be sucked together with the outdoor air more reliably.

Preferably, a filter insertion port for inserting the filter detachably is formed between the other end of the first partition wall portion and the second partition wall, and the filter is the outdoor side air. An outdoor filter portion arranged at an opening end opposite to the suction port in the fan-side passage portion of the passage, and an opening end opposite to the suction port in the fan-side passage portion of the indoor air passage. The indoor side filter portion is arranged in the above, and the boundary portion between the outdoor side filter portion and the indoor side filter portion is arranged in the filter insertion port.
According to the above configuration, dust such as pollen contained in the outdoor air and the indoor air is removed by the outdoor side filter portion and the indoor side filter portion of the filter, so that clean mixed air can be blown indoors. .. Further, since the filter can be detachably attached via the filter insertion port between the first partition wall portion and the second partition wall portion, the replacement work is easy.

Preferably, the apparatus main body has a retention chamber connected to the outdoor side introduction port, and the second partition wall portion is inclined toward the outside so as to approach the fan to provide an internal space of the apparatus main body. Crossing, the fan-side passage portion of the indoor air passage and the retention chamber are separated, and the fan-side passage portion of the outdoor air passage and the retention chamber are communicated with each other through the second partition wall portion. A communication port is formed, whereby the outdoor side air passage includes the fan side passage portion and the retention chamber, and the outdoor side filter portion and the indoor side filter portion are on two planes intersecting each other. With this, the filter has a bent shape, the outdoor side filter portion is arranged along the second partition wall portion, and the indoor side filter portion intersects the second partition wall portion. The indoor side introduction port is arranged between the second partition wall portion and the indoor side filter portion.
According to the above configuration, since the retention chamber acts as a buffer, the influence of a temporary increase in outdoor wind pressure can be mitigated. Further, the filter can be inserted along the second partition wall portion, and the installation work thereof is easy. Further, a space is formed between the indoor side filter portion and the second partition wall portion, and the indoor side introduction port can be connected to this space.

Preferably, the fan is installed in the central portion of the main body of the apparatus and has suction ports at both ends thereof, and has the outdoor side introduction port, the indoor side introduction port, the outdoor air passage, and the indoor air passage. And the partition wall is arranged on both sides of the fan.
According to the above configuration, outdoor air and outdoor air can be sucked from both sides of the fan.

Preferably, the apparatus main body includes a front wall facing indoors, a back wall facing outdoors, and a bottom wall, the back wall is formed with the outdoor side introduction port, and the bottom wall is formed with the indoor side. An introduction port is formed, and the air outlet is formed on the front wall.
According to the above configuration, since the introduction direction of the indoor air and the blowing direction of the mixed air are different, it is possible to prevent the blown mixed air from being immediately introduced into the ventilation device, to ensure good ventilation, and to blow out in cold weather. The cold air can be effectively softened.

Preferably, the apparatus main body includes a front wall facing indoors and a back wall facing outdoors, the outdoor side introduction port is formed on the back wall, and the fan and the filter are mounted on the front wall. An opening for exposure is formed, which is opened and closed by a cover rotatably supported by the device body, which is provided as part of the front wall and is provided. It has an air outlet, and a switch that responds to the opening and closing operation of the cover is arranged in the main body of the device. This switch rotates the fan when the cover is in the closed position, and the cover is Stop the fan when it is in the open position.
According to the above configuration, when the cover is opened for fan maintenance or filter replacement, the fan can be automatically stopped, and the fan maintenance and filter replacement work is completed and the cover is opened. When closed, the fan can be driven to rotate automatically.

Preferably, the shutter plate arranged along the back wall of the apparatus main body is further moved between the opening position for opening the outdoor side introduction port and the closing position for closing the outdoor side introduction port. The switch comprises an actuator and, when the cover is closed, drives the actuator to open the shutter, and when the cover is opened, drives the actuator to close the shutter. ..
According to the above configuration, when the cover is opened for fan maintenance or filter replacement, the outdoor side introduction port is automatically closed in conjunction with the stop of the motor, and when the cover is closed, the motor is driven to rotate. The outdoor side introduction port can be opened automatically in conjunction with the start.

According to the present invention, the indoor air can be reliably sucked by the fan without being greatly affected by the outdoor wind pressure, mixed with the outdoor air, and blown out indoors.

It is a front view which looked at the sash door which incorporated the ventilation system which concerns on one Embodiment of this invention from the indoor side. It is a perspective view which saw the said ventilation system from the indoor side. It is a perspective view which saw the said ventilation system from the outdoor side. It is a perspective view which shows the said ventilation system with the cover open. It is a perspective view which shows the said ventilation device in the state which disassembled into the apparatus main body, a fan and a filter. It is sectional drawing which cut the right half of the said ventilator in a horizontal plane. It is sectional drawing which cut the left half of the said ventilator in a horizontal plane. It is a top view of the said filter. FIG. 6A is a view of the filter viewed from the direction of arrow B in FIG. 6A. FIG. 6A is a view of the filter viewed from the direction of arrow C in FIG. 6A.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the sash door 2 is rotatably supported by the window frame 1 fitted in the wall hole of the building, for example, around the right edge, and can be opened toward the outside. ..
The ventilation device 3 of the present invention is incorporated in the sash door 2 as an upper sash or a part of the upper sash of the sash door 2.

As shown in FIGS. 1 to 3, the ventilation device 3 includes a hollow device main body 10 that extends in the left-right direction and is closed at both ends thereof. A fan 20 is arranged at the center of the apparatus main body 10, and a blower guide 30 and a filter 40 are arranged on the left and right sides of the fan 20.

The apparatus main body 10 has a vertically standing front wall 11 facing indoors. An elongated opening 11a extending to the left and right is formed in the front wall 11, and the fan 20, the left and right blower guides 30, and the filter 40 are exposed indoors by the opening 11a.
On the lower edge of the opening 11a, the lower edge of the cover 15 extending to the left and right is rotatably supported by the blower guide 30 and the device main body 10 by the hinge 16, and the opening 11a is opened and closed by the cover 15. ing. The cover 15 is provided as a part of the front wall 11 and has an outlet 15a including a large number of holes for blowing out the mixed air described later.

As shown in FIGS. 3 and 4, magnets 17 are fixed to the left and right portions of the surface of the cover 15 facing the outdoor side, and magnets 18 are also fixed to the surfaces of the left and right blower guides 30 facing the indoor side. The closed state of the cover 15 is maintained by attracting the magnets 17 and 18 to each other.

As shown in FIGS. 2B, 5A, and 5B, the apparatus main body 10 has a vertically erected back wall 12 facing the outdoors. On the left and right sides of the back wall 12, outdoor side introduction ports 12a for introducing outdoor air are formed. The outdoor side introduction port 12a of the present embodiment is configured by arranging a plurality of vertically arranged holes at equal pitches in the left-right direction.

A shutter plate 50 is arranged in the apparatus main body 10 so as to be in contact with the indoor surface of the back wall 12. The shutter plate 50 extends in the left-right direction, and a large number of control ports 51 corresponding to the outdoor side introduction port 12a are formed on the left and right portions at the same pitch as the outdoor side introduction port 12a. In the shutter plate 50, the actuator 55 causes the control port 51 to coincide with the outdoor side introduction port 12a to open the outdoor side introduction port 12a, and the control port 51 does not match the outdoor side introduction port 12a to open the outdoor side introduction port 12a. It is moved to the left and right from the closing position where 12a is closed.

As shown in FIGS. 3 to 5, indoor introduction ports 13a for introducing indoor air are formed on the left and right portions of the bottom wall 13 of the apparatus main body 10.

As shown in FIGS. 3 to 5, the fan 20 arranged in the central portion of the apparatus main body 10 is composed of a double sirocco fan, a case 21 in which the indoor side is open, and a motor 22 supported in the center of the case 21. And the blades 23 fixed to the left and right output shafts of the motor 22 and arranged in a cylindrical shape. The rotation axis of the blade 23 extends in the longitudinal direction of the apparatus main body 10, and the tip opening thereof serves as a suction port 24. The indoor side opening portion of the case 21 is provided as a discharge port 25. The air discharged from the discharge port 25 is blown indoors from the air outlet 15a of the front wall 11.

As shown in FIGS. 5A and 5B, each of the pair of blower guides 30 has a tubular guide body 31 with both left and right ends open and a vertically standing flat plate-shaped first and second partition wall portions 35. , 36 (partition wall) are integrally provided.
The first partition wall portion 35 extends in the longitudinal direction of the apparatus main body 10, and divides the internal space of the guide main body 31 into two fan-side passage portions 37a and 38a. One end of the guide main body 31 and the first partition wall portion 35 extends to the suction port 24 of the fan 20. The first partition wall portion 35 has a ratio of, for example, 7: 3 so that the area A of the suction port 24 of the fan 30 is large in the fan-side passage portion 37a on the outdoor side and small in the fan-side passage portion 38a on the indoor side. It is divided so that it becomes.

The outdoor side end of the second partition wall portion 36 is connected to the other end of the guide main body 31 and crosses the internal space of the apparatus main body 10. The second partition wall portion 36 is inclined with respect to the longitudinal direction of the apparatus main body 10 so as to approach the fan 20 from indoors to outdoors.

A retention chamber 37b connected to the outdoor side introduction port 12a of the back wall 12 is formed between the second partition wall portion 36 and the closed end of the apparatus main body 10.
A communication port 36a is formed in the outdoor side portion of the second partition wall portion 36. The retention chamber 37b and the fin-side passage portion 37a on the outdoor side are communicated with each other through the communication port 36a. The stay chamber 37b and the fan-side passage portion 37a constitute an outdoor air passage 37 for guiding the outdoor air introduced from the outdoor-side introduction port 12a to the suction port 24 of the fan 20.

The indoor side portion of the second partition wall portion 36 isolates the retention chamber 37b from the indoor side introduction port 13a and the indoor side fan side passage portion 38a. The indoor air passage for guiding the indoor air introduced from the indoor side introduction port 13a to the suction port 24 of the fan 20 by the space 38b directly above the indoor side introduction port 13a and the fan side passage portion 38a in the apparatus main body 10. 38 is configured. The space 38b is much smaller than the retention chamber 37b.

The first partition wall portion 35 extends toward the second partition wall portion 36, and a gap is formed between the other end and the second partition wall portion 36. This gap is provided as a filter insertion slot 39.

As shown in FIG. 6, each of the pair of left and right filters 40 has a frame 41 and two filter materials 42 and 43. The frame 41 has a first frame portion 41a on the outdoor side and a second frame portion 41b on the indoor side. The outdoor side filter portion 47 is formed by the first frame portion 41a and the filter material 42 attached to the first frame portion 41a, and the filter material 43 attached to the second frame portion 41b and the second frame portion 41b constitutes the outdoor side filter portion 47. , The indoor side filter unit 48 is configured. The outdoor side filter unit 47 has a larger area than the indoor side filter unit 48.

The outdoor side filter unit 47 and the indoor side filter unit 48 are arranged on a plane that intersects with each other at approximately 90 °, whereby the filter 40 has a shape that is bent in a dogleg shape. The filter 40 further has a knob 45 that is integral with the indoor side edge of the frame 41.

The outdoor side filter portion 47 is located along the second partition wall portion 36 and has an opening end of the fan side passage portion 37a opposite to the fan 20 (that is, a retention chamber 37b of the outdoor air passage 37 and a fan side passage portion 37a. (Between).
The indoor side filter portion 48 is inclined in the direction opposite to the second partition wall portion 36 and intersects with the second partition wall portion 36, and the opening end of the fan side passage portion 38a opposite to the fan 20 (that is, that is). It is arranged between the space 38b and the fan-side passage portion 38a). In other words, the space 38b and the indoor side introduction port 13a are arranged between the indoor side filter 48 and the second partition wall portion 36.

As shown in FIGS. 5A and 5B, the filter 40 is outdoors along the second partition wall portion 36 by pinching the knob 45 by hand and inserting the outdoor side filter portion 47 into the filter insertion port 39 with the cover 15 open. It can be easily installed by pushing it toward. In this installed state, the boundary portion 49 (bent portion) of the outdoor side filter portion 47 and the indoor side filter portion 48 of the filter 40 closes the filter insertion port 39. The knob 45 is arranged along the closed cover 15.

As shown in FIG. 3, a switch 70 that operates in response to opening and closing of the cover 15 is installed on the indoor side surface of the device main body 10, more specifically, the case 21 of the fan 20.
When the cover 15 is opened during maintenance of the fan 20 or replacement of the filter 40, the switch 70 is in the off position, the motor 22 of the fan 20 is stopped, and the actuator 55 is driven to close the shutter plate 50 (outdoor side). Move to the position where the introduction port 12a is closed).
When the maintenance of the fan 20 and the replacement of the filter 40 are completed and the cover 15 is closed, the switch is turned on by being pushed by the cover 15, whereby the motor 22 of the fan 20 is rotationally driven and the actuator 55 is driven. The shutter plate 50 is moved to the opening position (the position where the outdoor side introduction port 12a is opened).

A battery (not shown) (not shown) is housed in the apparatus main body 10. The battery is charged by a non-contact (wireless) power supply system. Briefly, as shown in FIG. 5A, a power receiving unit 81 is provided on the indoor side of the right end of the apparatus main body 10, and a power transmitting unit 82 is installed on the window frame 1. When the sash door 2 is in the closed state, the battery is charged from the power transmitting unit 82 via the power receiving unit 81.

The operation of the ventilation device having the above configuration will be described. When the cover 15 is closed, the outdoor side introduction port 12a is opened, and the fan 20 is rotationally driven, outdoor air is introduced from the left and right outdoor side introduction ports 12a and passes through the outdoor air passage 37 to the left and right of the fan 20. Is sucked into the suction port 24 of. At the same time, indoor air is introduced from the left and right indoor side introduction ports 13a, and is sucked into the left and right suction ports 24 of the fan 20 through the indoor air passage 38.

The sucked outdoor air and indoor air are mixed by the fan 20, and the mixed air is blown indoors from the discharge port 25 of the fan 20 through the outlet 15a of the front wall 11. Since the blown-out mixed air contains not only outdoor air but also indoor air, it is possible to soften the outdoor cold air by the indoor warm air in a situation where the indoor air is heated in cold weather, and as a result, dew condensation occurs indoors. Can be prevented from occurring, and cold air can be prevented from being applied to the feet of residents.
In the present embodiment, the suction amount of the outdoor air is larger than the suction amount of the indoor air, for example, 7: 3, and good ventilation can be performed.

Since the outdoor air passage 37 and the indoor air passage 38 are separated from each other up to the suction port 24 of the fan 20 by the partition wall composed of the first partition wall portion 35 and the second partition wall portion 36, the outdoor air and the indoor air are separated from each other. It is not mixed up to the suction port 24 of the fan 20. Therefore, it is possible to prevent the ratio of the amount of intake of outdoor air from becoming abnormally high (the ratio of the amount of intake of indoor air becomes abnormally low) due to the great influence of outdoor wind pressure, and to the above-mentioned dew condensation and the feet of residents. It is possible to surely prevent the addition of cold air.

In particular, in the present embodiment, the outdoor air passage 37 and the indoor air passage 38 are separated from the outdoor air and the indoor air passages 37a and 38a by the first partition wall 35 parallel to the rotation axis of the fan 20. Air is sucked into the suction port 24 along the rotation axis. Therefore, it is possible to prevent the mixture of the two more reliably.
Further, since the outdoor air passage 37 has a retention chamber 37b connected to the outdoor side introduction port 12a, the retention chamber 37b serves as a buffer to reduce the influence of sudden fluctuations in the outdoor wind pressure.

Since the indoor side introduction port 13a is formed on the bottom wall 13, the indoor air suction direction and the blowout direction can be made different, so that the mixed air blown out by this can be immediately introduced into the indoor side introduction port 13a. It can be avoided.

Dust containing pollen contained in the outdoor air is removed when the outdoor air passes through the outdoor side filter unit 47, and dust containing pollen contained in the indoor air is removed when the indoor air passes through the indoor side filter unit 48. Therefore, clean mixed air can be blown out from the outlet 15a.

When maintenance of the fan 20 or replacement of the filter 40 is required, the cover 15 is opened. Since the motor 22 of the fan 20 is screwed to the indoor side surface of the case 21, it can be easily removed from the case 21 together with the blade 23 by removing the screw.
The filter 40 can be easily pulled out by pinching the knob 45 and pulling it out along the second partition wall portion 36. The new filter 40 can also be easily set as described above.

In the above embodiment, the ventilation device according to the present invention is used alone, but it can also be used in a constant ventilation system equipped with a ventilation device with an exhaust fan. In this ventilation system, for example, an exhaust fan is installed in a sash window of a toilet, a bathroom, or the like, and a ventilation device according to the present invention is installed in a sash door or the like of a living room. In this ventilation system, an exhaust fan exhausts the indoor air to the outside and creates a negative pressure inside to guide the outdoor air to the inside. As described above, since the exhaust fan can mainly play a role of ventilation, the ventilation device according to the present invention only plays a role of mixing indoor air in order to alleviate the outdoor cold air supplied to the living room. Good. In this case, the output of the fan of the ventilation device according to the present invention can be smaller than that of the exhaust fan.

The present invention is not limited to the above embodiment, and various aspects are possible.
The edge of the partition wall and the suction port of the fan may be slightly separated so that the outdoor air and the indoor air do not mix at the suction port.

The present invention can be applied to a ventilation device in which outdoor air is blown indoors by using a fan.

3 Ventilation device 10 Device body 11 Front wall 11a Opening 12 Back wall 12a Outdoor side introduction port 13 Bottom wall 13a Indoor side introduction port 15 Cover 15a Air outlet 20 Fan 24 Suction port 30 Blower guide 35 1st partition wall (partition wall)
36 Second partition wall (partition wall)
36a Communication port 37 Outdoor air passage 37a Fan side passage part 37b Retention chamber 38 Indoor air passage 38a Fan side passage part 38b Space 39 Filter insertion port 40 Filter 47 Outdoor side filter part 48 Indoor side filter part 49 Boundary part 50 Shutter plate 55 Actuator 70 switch

Claims (8)

A hollow device body having an outdoor side introduction port for introducing outdoor air, an indoor side introduction port for introducing indoor air, and an outlet for blowing out a mixed air of outdoor air and indoor air.
A fan installed in the main body of the device, sucking the outdoor air and the indoor air from the suction port, and discharging a mixed air of the outdoor air and the indoor air to the outlet.
In the ventilation system equipped with
Further, an outdoor air passage which is arranged in the main body of the apparatus and extends to the suction port of the fan is provided, and the partition wall guides the outdoor air from the outdoor side introduction port to the suction port. A ventilation device characterized in that an indoor air passage for guiding indoor air from the indoor side introduction port to the suction port is isolated. The device body is elongated, and the rotation axis of the fan extends along the longitudinal direction of the device body.
The partition wall extends in the longitudinal direction of the main body of the device, and one end thereof extends in a direction intersecting the longitudinal direction of the main body of the device with at least a part of the first partition wall portion reaching the suction port of the fan. It has a partition wall and
The ventilation device according to claim 1, wherein the outdoor air passage and the indoor air passage each have a fan-side passage portion separated by the first partition wall portion. A filter insertion port for inserting the filter detachably is formed between the other end of the first partition wall portion and the second partition wall.
The filter includes an outdoor side filter portion arranged at an opening end opposite to the suction port in the fan side passage portion of the outdoor side air passage, and the suction in the fan side passage portion of the indoor air passage. It has an indoor filter portion arranged at an opening end on the opposite side of the mouth, and is characterized in that the boundary portion between the outdoor side filter portion and the indoor side filter portion is arranged at the filter insertion port. The ventilation device according to claim 2. The main body of the device has a retention chamber connected to the outdoor introduction port.
The second partition wall portion is inclined toward the outside so as to approach the fan, crosses the internal space of the apparatus main body, and separates the fan-side passage portion of the indoor air passage from the retention chamber. ,
The second partition wall portion is formed with a communication port for communicating the fan-side passage portion of the outdoor air passage with the retention chamber, whereby the outdoor-side air passage is formed with the fan-side passage portion and the above. Includes a retention chamber
The outdoor side filter part and the indoor side filter part are on two planes intersecting each other, whereby the filter has a bent shape.
The outdoor side filter portion is arranged along the second partition wall portion, the indoor side filter portion is arranged so as to be inclined in a direction intersecting the second partition wall portion, and the second partition wall portion and the shop are arranged. The ventilation device according to claim 3, wherein the indoor side introduction port is arranged between the inner filter portion and the inner filter portion. The fan is installed in the central portion of the main body of the apparatus and has suction ports at both ends thereof, and has the outdoor side introduction port, the indoor side introduction port, the outdoor air passage, the indoor air passage, and the partition. The ventilation device according to any one of claims 1 to 4, wherein the walls are arranged on both sides of the fan. The main body of the device includes a front wall facing indoors, a back wall facing outdoors, and a bottom wall. The outdoor side introduction port is formed on the back wall, and the indoor side introduction port is formed on the bottom wall. The ventilation device according to any one of claims 1 to 5, wherein the ventilation device is formed and the air outlet is formed on the front wall. The main body of the device includes a front wall facing indoors and a back wall facing outdoors, and the outdoor side introduction port is formed on the back wall, and the fan and the filter are exposed on the front wall. The opening is formed, and the opening is opened and closed by a cover rotatably supported by the main body of the device, and the cover is provided as a part of the front wall and the outlet is provided. Have and
Further, a switch that responds to the opening / closing operation of the cover is arranged in the main body of the apparatus, and this switch rotates the fan when the cover is in the closed position and drives the fan when the cover is in the open position. The ventilation device according to claim 3 or 4, wherein the ventilation device is stopped. Further, a shutter plate arranged along the back wall of the apparatus main body, an actuator for moving the shutter plate between an opening position for opening the outdoor side introduction port and a closing position for closing the outdoor side introduction port, With
The switch is characterized in that when the cover is closed, the actuator is driven to open the shutter, and when the cover is opened, the actuator is driven to close the shutter. Item 7. The ventilation device according to item 7.

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