WO2018003544A1 - Ventilation device - Google Patents

Abstract

A ventilation device (200) comprises: a housing (10); a heat exchange element (20) that is positioned within the housing (10) and is for performing heat exchange between air drawn in from outdoors and air drawn in from indoors; and a second fan unit that is positioned within the housing (10) and is for discharging, to the outdoors, the air drawn in from indoors. The housing (10) has a first discharge outlet (116c) and a second discharge outlet (114c) formed therein and is structured such that the discharge outlet that serves as a discharge destination of the second fan unit can be switched.

Description

Ventilation equipment

The present invention relates to a ventilator, particularly a ventilator provided with a heat exchange element.

Conventionally, ventilators equipped with heat exchange elements are known. This ventilator supplies fresh outdoor air that is heat-exchanged with indoor air and temperature-controlled. Conventionally, for example, a heat exchange element as described in Patent Document 1 has been proposed.

JP 2016-0405501 A

The ventilator as described in Patent Document 1 is attached to a wall so that an exhaust outlet formed in the back surface of the casing faces a wall hole formed in the wall. Therefore, depending on the installation area around the wall hole, it may be difficult to install the ventilation device. It is conceivable to form an exhaust outlet on the side of the housing and connect the exhaust outlet and the wall hole via a hose. However, if the hose is exposed, the appearance will be damaged, so it has never been avoided. . Although it is conceivable to manufacture a model ventilator with a blowout port formed on the back surface and a model ventilator with a blowout port formed on the side surface, respectively, the cost increases as the number of models increases.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a ventilation device capable of switching an exhaust outlet.

In order to solve the above-described problems, a ventilator according to an aspect of the present invention is a heat exchanger for exchanging heat between a housing and air that is disposed in the housing and is sucked from outside and air that is sucked from indoors. The device includes a device and a fan unit that is disposed in the housing and exhausts air sucked from indoors to the outside. A plurality of exhaust outlets are formed in the housing, and the exhaust outlet serving as an exhaust destination of the fan unit is switched.

According to the present invention, it is possible to provide a ventilation device capable of switching the exhaust outlet.

It is a figure which shows the installation state of the ventilation apparatus which concerns on 1st Embodiment. It is a perspective view which shows the ventilation apparatus of FIG. FIGS. 3A to 3C are a top view, a front view, and a bottom view, respectively, showing the ventilation device of FIG. FIGS. 4A and 4B are views showing a ventilator according to the second embodiment. Fig.5 (a), (b) is a figure which shows the ventilation apparatus which concerns on 2nd Embodiment. FIGS. 6A and 6B are perspective views showing the movable part of the second fan case of FIG. It is a figure which shows the ventilation apparatus which concerns on a modification. FIGS. 8A and 8B are views showing a ventilation device according to a modification.

Hereinafter, the same or equivalent components and members shown in each drawing will be denoted by the same reference numerals, and repeated description will be omitted as appropriate. In addition, the dimensions of the members in each drawing are appropriately enlarged or reduced for easy understanding. Also, in the drawings, some of the members that are not important for describing the embodiment are omitted.

(First embodiment)
FIG. 1 is a diagram illustrating an installation state of the ventilation device 100 according to the first embodiment. The ventilation device 100 is attached to the wall surface 2 inside the building, and ventilates by supplying and exhausting air between the outside and the inside of the building. In FIG. 1, the ventilation device 100 is attached to the wall surface 2 between the window 4 and the ceiling 6.

2 to 3 show the ventilator 100. FIG. 2 is a perspective view of the ventilation device 100. 3A to 3C are a top view, a front view, and a bottom view of the ventilation device 100, respectively. The ventilation device 100 includes a housing 10, a heat exchange element 20, a first fan unit 30, a second fan unit 40, a first partition member 50, a second partition member 60, and a duct 70. .

The housing 10 has a long shape. The housing 10 has a rectangular parallelepiped box shape in the present embodiment, and includes a first side surface portion 11, a second side surface portion 12, a third side surface portion 13, a fourth side surface portion 14, and a front surface portion 15. , And back portion 16. In the following description, the longitudinal direction of the housing 10 is assumed to be the x direction, the normal direction of the back surface portion 16 is assumed to be the y direction, and the direction orthogonal to the x direction and the y direction is assumed to be the z direction.

The front portion 15 has a long shape that is long in the x direction. The back surface portion 16 has a long shape that is long in the x direction and faces the front surface portion 15. The back surface portion 16 comes into contact with the wall surface when the ventilation device 100 is attached to the wall surface of the building. An air supply / exhaust port 16 a is formed in the back surface portion 16. The ventilation device 100 is attached so that the air supply / exhaust port 16a faces a wall hole for air supply / exhaust formed on the wall surface.

The air supply / exhaust port 16a is formed in a circular shape in the present embodiment. The air supply / exhaust port 16a is partitioned by a second partition member 60 into an air supply / intake port 16b and an exhaust air outlet 16c. Outdoor air is taken in from the air supply inlet 16b. From the exhaust outlet 16c, the indoor air taken into the housing 10 from the exhaust inlet 12a (described later) and heat-exchanged by the heat exchange element 20 as described later is discharged to the outdoors.

The first side surface portion 11 has a long shape that is long in the x direction, and is connected to the front surface portion 15 and the back surface portion 16. The first side surface portion 11 is formed with an air supply outlet 11a for supplying air, which is taken into the housing 10 from the air supply inlet 16b and heat-exchanged by the heat exchange element 20, as will be described later. Has been. In the present embodiment, air supply outlet 11a is formed at the end on the front portion 15 side.

The second side surface portion 12 has a long shape in the x direction, and is connected to the front surface portion 15 and the back surface portion 16 so as to face the first side surface portion 11. The second side surface portion 12 is formed with an exhaust suction port 12 a for taking indoor (indoor) air into the housing 10. In the present embodiment, the exhaust suction port 12a is formed at the end on the front portion 15 side.

The heat exchange element 20 is disposed in the housing 10 and exchanges heat between the air sucked from the outdoors and the air sucked from the indoors. In the present embodiment, heat exchange element 20 has a hexagonal prism shape. The heat exchange element 20 is formed by laminating a plurality of hexagonal heat transfer sheets in the y direction with a space therebetween via a spacer. The heat transfer sheet is formed of a material having moisture permeability such as paper. Between the plurality of heat transfer sheets, an air supply flow path that forms part of a flow path through which air sucked from outside passes and an exhaust flow path that forms part of a flow path through which air sucked from indoors pass Are alternately formed in the y direction.

The heat exchange element 20 is formed such that the width in the z direction is the same as or slightly shorter than the width in the z direction of the accommodation space in the housing 10 (for example, 10 to 20 mm). In other words, the housing 10 is formed such that the width of the housing space in the z direction is the same as or slightly longer than the width of the heat exchange element 20 in the z direction.

The first partition member 50 is disposed in the first space 81 in the housing 10 so as to be adjacent to the heat exchange element 20 in the x direction. The first space 81 is a space in the housing 10 adjacent to the heat exchange element 20 in the x direction. The first partition member 50 is a plate-like member in the present embodiment, and is arranged so that its two main surfaces face the first side surface portion 11 and the second side surface portion 12, respectively. The first space 81 is partitioned by the first partition member 50 into a first chamber 91 on the first side surface portion 11 side and a second chamber 92 on the second side surface portion 12 side. The first chamber 91 is provided on the downstream side of the air supply passage and communicates with the outlet 21b of the air supply passage. The second chamber 92 is provided on the upstream side of the exhaust passage and communicates with the inlet 22a of the exhaust passage.

The second partition member 60 is disposed in the second space 82 in the housing 10 so as to be adjacent to the heat exchange element 20 in the x direction. The second space 82 is a space in the housing 10 adjacent to the heat exchange element 20 in the x direction, and is a space located on the opposite side of the first space 81 with respect to the heat exchange element 20 in the x direction. . The second partition member 60 is a plate-like member in the present embodiment, and is disposed in the housing 10 so that the two main surfaces thereof face the first side surface portion 11 and the second side surface portion 12, respectively. The second space 82 is partitioned by the second partition member 60 into a third chamber 93 on the first side surface portion 11 side and a fourth chamber 94 on the second side surface portion 12 side. The third chamber 93 is provided on the downstream side of the exhaust passage and communicates with the outlet 22b of the exhaust passage. The fourth chamber 94 is provided on the upstream side of the air supply passage and communicates with the inlet 21a of the air supply passage. As described above, the air supply / exhaust port 16a is partitioned by the second partition member 60 into the air supply / intake port 16b and the exhaust air outlet 16c.

The first fan unit 30 is accommodated in the first space 81. The first fan unit 30 includes a first fan case 31, a first fan 32, and a first motor 33. The first fan case 31 is a conch case. The first fan 32 is a centrifugal blower such as a sirocco fan, for example. The first fan 32 is accommodated in the first fan case 31. The first motor 33 is fixed to the first fan case 31, and its motor shaft (not shown) enters the first fan case 31 and is attached to the first fan 32. When the first motor 33 is driven and the first fan 32 rotates, air is sucked from the suction port 31a and blown out from the blower port 31b.

The first fan unit 30 is fixed to the first partition member 50 in a state where the first fan case 31 is placed on the first partition member 50. The first fan unit 30 is arranged such that the acute angle formed by the rotation axis R of the first fan 32 and the z direction is 90 degrees or less. Preferably, the first fan unit 30 is arranged such that an acute angle formed by the rotation axis R of the first fan 32 and the z direction is 45 degrees or less. Note that the smaller the acute angle formed between the rotation axis R of the first fan 32 and the z direction, the better. In FIG. 3B, the first fan unit 30 forms the rotation axis R of the first fan 32 and the z direction. Arrangement is made so that the acute angle is 0 degree, that is, the rotation axis R of the first fan 32 and the z direction are parallel to each other.

Further, the first fan unit 30 is disposed across the first chamber 91 and the second chamber 92. Specifically, in the first fan unit 30, at least a part of the first fan case 31 (and at least a part of the first fan 32) is positioned in the first chamber 91, and at least a part of the first motor 33 is included. It arrange | positions so that it may be located in the 2nd chamber 92. In FIG. 3B, the entire first fan case 31 is located in the first chamber 91, and the first motor 33 enters the second chamber 92 from the insertion hole 50 a formed in the first partition member 50 and enters the second chamber 92. The case where the whole 1 motor 33 is located in the 2nd chamber 92 is shown.

Furthermore, in the present embodiment, the first fan unit 30 is configured such that at least a part of the first fan case 31 faces the outlet 21b of the heat exchange element 20 supply passage in the x direction, and at least one of the first motor 33 is disposed. Is disposed so as to face the inlet 22a of the heat exchange element 20 exhaust passage in the x direction. In FIG. 3 (b), the first fan case 31 faces the outlet 21b of the air supply passage and the inlet 22a of the exhaust passage in the x direction, and the first motor 33 faces the inlet 22a of the exhaust passage in the x direction. The case is shown.

The second fan unit 40 is accommodated in the second space 82 in the housing 10. The second fan unit 40 includes a second fan case 41, a second fan 42, and a second motor 43. The second fan case 41, the second fan 42, and the second motor 43 are configured similarly to the first fan case 31, the first fan 32, and the first motor 33, respectively.

The second fan unit 40 is fixed to the second partition member 60 in a state where the second fan case 41 is placed on the second partition member 60. The second fan unit 40 is arranged such that the acute angle formed by the rotation axis R of the second fan 42 and the z direction is 90 degrees or less. Preferably, the second fan unit 40 is arranged such that an acute angle formed by the rotation axis R of the second fan 42 and the z direction is 45 degrees or less. Note that the smaller the acute angle between the rotation axis R of the second fan 42 and the z direction is, the better. In FIG. 3B, the second fan unit 40 has the rotation axis R of the second fan 42 and the z direction. The second fan 42 is arranged so that the acute angle is 0 degree, that is, the rotation axis R of the second fan 42 is parallel to the z direction.

Further, the second fan unit 40 is disposed across the third chamber 93 and the fourth chamber 94. Specifically, in the second fan unit 40, at least a part of the second fan case 41 (and at least a part of the second fan 42) is located in the third chamber 93, and at least a part of the second motor 43 is included. It is arranged so as to be located in the fourth chamber 94. In FIG. 3B, the entire second fan case 41 is located in the third chamber 93, and the entire second motor 43 enters the fourth chamber 94 from the insertion hole 60 a formed in the second partition member 60. The case where the entire second motor 43 is located in the fourth chamber 94 is shown.

Furthermore, in the present embodiment, the second fan unit 40 is configured such that at least a part of the second fan case 41 faces the outlet 22b of the exhaust passage of the heat exchange element 20 in the x direction, and at least the second motor 43 A part of the heat exchange element 20 is disposed so as to face the inlet 21a of the air supply passage in the x direction. In FIG. 3B, the second fan case 41 faces the outlet 22b of the exhaust passage and the inlet 21a of the supply passage in the x direction, and the entire second motor 43 is in the x direction with the inlet 21a of the supply passage. The opposite case is shown.

The duct 70 is a duct that extends from the air outlet 31 b of the first fan case 31 to the air supply outlet 11 a of the first side surface portion 11. The duct 70 allows the first fan case 31 and the indoor space outside the housing 10 to communicate with each other.

The operation of the ventilation device 100 configured as described above will be described.
The first fan unit 30 and the second fan unit 40 are driven under the control of a control device (not shown). When the first fan unit 30 is driven, outdoor air is sucked into the fourth chamber 94 from the air supply inlet 16b of the back surface portion 16, and flows into the first chamber 91 through the air supply passage of the heat exchange element 20. The air is sucked into the first fan case 31 through the suction port 31a. The air sucked into the first fan case 31 is blown out from the blower outlet 31b, and blown out through the duct 70 from the air supply blower outlet 11a of the first side surface portion 11 into the room. Further, when the second fan unit 40 is driven, indoor air is sucked into the second chamber 92 from the exhaust suction port 12a of the second side surface portion 12, and the third chamber passes through the exhaust flow path of the heat exchange element 20. Into the second fan case 41 through the suction port 41a. The air sucked into the second fan case 41 is blown out from the blower outlet 41b and blown out from the exhaust blower outlet 16c.

At this time, heat exchange is performed between the air passing through the air supply passage of the heat exchange element 20 and the air passing through the exhaust passage of the heat exchange element 20. Thereby, the temperature of the air which flows in from the outdoors becomes close to the temperature of the indoor air.

According to the ventilation device 100 described above, the first fan unit 30 and the second fan unit 40 are arranged so as to sandwich the heat exchange element 20 in the x direction. In each fan unit, the rotation axis of the fan faces the z direction, the fan case and the fan are located in the first chamber 91 or the third chamber 93, and the motor is located in the second chamber 92 or the fourth chamber 94. Placed in the state. Thereby, for example, when the fan unit is arranged so that the rotation axis of the fan faces the x direction, or when the entire fan unit is located in the first chamber 91 or the third chamber 93, The width of the ventilation device 100 can be shortened.

Further, according to the ventilation device 100, indoor air is sucked into the second chamber 92 from the exhaust suction port 12 a formed in the second side surface portion 12. In addition, air is blown out indoors from an air supply outlet 11 a formed in the first side surface portion 11 (side surface portion facing the second side surface portion 12) through the duct 70. That is, since the indoor air entrance / exit is formed on the opposing side surface portions, occurrence of a short circuit is suppressed. Moreover, since the entrance / exit is formed in the side part which opposes, the air of the whole room in which the ventilator 100 is installed circulates.

(Second Embodiment)
4 and 5 show a ventilator 200 according to the second embodiment. 4 (a) and 4 (b) are perspective views of the second space 82 and its periphery as viewed from the back surface 16 side. FIG. 4A shows a state where the second fan unit 140 is attached, and FIG. 4B shows a state where the second fan unit 140 is removed. FIG. 5 is a cross-sectional view taken along a plane parallel to the xy plane and passing through the second fan 42 of the second fan unit 140. FIGS. 6A and 6B are perspective views of the movable portion 144 of the second fan case 141 as seen from different directions.

Focus on the differences with the ventilation device 100. The ventilation device 200 includes a second fan unit 140 instead of the second fan unit 40. Further, in the ventilator 200, the first air supply / exhaust port 116 a is formed in the back surface portion 16, and the second air supply / exhaust port 114 a is formed in the fourth side surface portion 14. That is, the ventilator 200 has two air supply / exhaust ports.

The first air supply / exhaust port 116a is formed in a rectangular shape in the present embodiment. The first air supply / exhaust port 116a is partitioned by the second partition member 60 into a first air supply / intake port 116b and a first exhaust air outlet 116c. The first supply air inlet 116b and the first exhaust air outlet 116c correspond to the intake air inlet 16b and the exhaust air outlet 16c of the first embodiment, respectively.

The second air supply / exhaust port 114a is formed in a rectangular shape in the present embodiment. The second air supply / exhaust port 114a is partitioned by the second partition member 60 into a second air supply / intake port 114b and a second exhaust air outlet 114c. The second air intake port 114b and the second exhaust air outlet 114c correspond to the air intake port 16b and the exhaust air outlet 16c of the first embodiment, respectively.

The second fan unit 140 includes a second fan case 141, a second fan 42, and a second motor 43. The second fan case 141 includes a movable part 144 having a main body part 146 and two projecting parts 147, and a fixed part 145.

The main body 146 is a cylindrical body having a cylindrical portion 146a that forms a side surface, a bottom portion 146b that closes one end of the cylindrical portion 146a, and a lid portion 146c that closes the other end of the cylindrical portion 146a. Accommodate. The main body 146 is configured to be rotatable in the circumferential direction of the cylindrical portion 146a. The cylindrical portion 146a has a cylindrical outer peripheral surface, and is formed so that its radial thickness increases as it advances in the circumferential direction (clockwise in FIG. 5). Further, a blower outlet (opening) 146d is formed in the cylindrical portion 146a between a portion having the largest radial thickness and a thin portion. When the second motor 43 is driven and the second fan 42 is rotated, air is sucked from the suction port 146e formed in the lid 146c and blown out from the air outlet 146d.

The two projecting parts project from both sides of the air outlet 146d in parallel with the axial direction of the cylindrical part 146a. The two overhanging parts 147 are formed in an arcuate plate shape. As will be described later, the overhanging portion 147 closes the unused air supply / exhaust port together with the cylindrical portion 146a.

The fixing part 145 is fixed to the second partition member 60. The fixing part 145 includes a first duct part 145a and a second duct part 145b. The first duct portion 145a connects (communicates) the air outlet 146d and the first exhaust air outlet 116c when the air outlet 146d of the cylindrical portion 146a faces the first exhaust air outlet 116c in the y direction. In this case, the air blown from the air outlet 146d is discharged to the outside from the first exhaust air outlet 116c through the first duct portion 145a. The second duct portion 145b connects (communicates) the air outlet 146d and the second exhaust air outlet 114c when the air outlet 146d of the cylindrical portion 146a faces the second exhaust air outlet 114c in the x direction. In this case, the air blown out from the air outlet 146d is discharged to the outside from the second exhaust air outlet 114c through the second duct portion 145b.

When the air outlet 146d of the cylindrical portion 146a is connected to the first exhaust air outlet 116c, the second exhaust air outlet 114c is blocked by the cylindrical portion 146a, and the second air intake port 114b is blocked by the overhanging portion 147. Can be removed. On the other hand, when the air outlet 146d of the cylindrical portion 146a is connected to the second exhaust air outlet 114c, the first exhaust air outlet 116c is blocked by the cylindrical portion 146a, and the first air intake port 116b is extended by the overhanging portion 147. Is blocked.

According to the ventilator 200 according to the present embodiment, the air supply / exhaust port to be used can be switched to the first air supply / exhaust port 116a or the second air supply / exhaust port 114a. For example, an operator who installs the ventilation device 200 can switch the air supply / exhaust port used when the ventilation device 200 is installed. Accordingly, when the ventilation device 200 cannot be attached to the wall surface so that the first air supply / exhaust port 116a faces the wall hole, that is, when the first air supply / exhaust port 116a cannot be connected to the wall hole, the second air supply / exhaust port 114a. Can be used as an air supply / exhaust port, and a duct can be extended from the second air supply / exhaust port 114a to be connected to a wall hole. Therefore, the ventilation device 200 can be installed in a building that cannot be installed when only the first air supply / exhaust port 116a is provided. Moreover, the installation freedom degree of the ventilation apparatus 200 improves. This is especially effective for apartment renovation where it is difficult to form a wall hole later. On the other hand, when the ventilator 200 can be attached to the wall surface so that the first air supply / exhaust port 116a faces the wall hole, the first air supply / exhaust port 116a can be used as the air supply / exhaust port. It becomes unnecessary and can maintain a good indoor aesthetic.

Moreover, according to the ventilating apparatus 200 according to the present embodiment, the movable portion 144 of the second fan case 141 is rotated, and the position where the air outlet 146d faces the first exhaust air outlet 116c and the second exhaust air outlet. By switching between the position facing the outlet 114c, the air supply / exhaust port to be used can be switched. In other words, the air supply / exhaust port to be used can be switched without special tools or skills.

Further, according to the ventilation device 200 according to the present embodiment, the air supply / exhaust port to be used can be switched by rotating the movable portion 144 without rotating the fixed portion 145, that is, the duct portion. Therefore, a required space is small compared with the case where the duct portion is rotated in addition to the movable portion 144. Thereby, slimming of the housing 10 and thus the ventilation device 100 can be realized.

The configuration and operation of the ventilation device according to the embodiment have been described above. It is to be understood by those skilled in the art that these embodiments are exemplifications, and various modifications can be made to the combination of each component, and such modifications are also within the scope of the present invention.

(Modification 1)
In the first and second embodiments, the case where both the first fan unit 30 and the second fan unit 40 are disposed across two chambers has been described. However, the present invention is not limited to this, and the first fan unit 30 and At least one of the second fan units 40 may be disposed across the two chambers.

FIG. 7 shows a ventilation device 300 according to a modification. In the ventilation device 300, the first fan unit 30 is disposed so as to be located only in the first chamber 91 without straddling the two chambers. On the other hand, the second fan unit 40 is disposed so as to straddle the two chambers of the second chamber 92 and the third chamber 93. The first fan unit 30 may be arranged so as to straddle two chambers, and the second fan unit 40 may be arranged so as to be located only in one chamber without straddling the two chambers. According to this modification, the width of the ventilation device 300 in the z direction can be shortened at least partially.

(Modification 2)
In the first and second embodiments, the case where the heat exchange element has a hexagonal column shape has been described. However, the present invention is not limited to this, and the heat exchange element can take various shapes. FIGS. 8A and 8B show a ventilator 400 and a ventilator 500 according to modifications, respectively.

In the ventilation device 400 shown in FIG. 8 (a), the heat exchange element 20 has a quadrangular prism shape. The heat exchange element 20 is formed by laminating a plurality of quadrangular (diamond-shaped) heat transfer sheets in the y direction with a space between them.

8 (b), the heat exchange element 20 has a rectangular parallelepiped shape. The heat exchange element 20 is formed by laminating a plurality of rectangular heat transfer sheets in the y direction with a space therebetween via a spacer.

According to these modified examples, the same operational effects as the operational effects exhibited by the ventilator according to the embodiment are exhibited.

(Modification 3)
Although not particularly mentioned in the first and second embodiments, the first fan case 31 and the first fan 32 are disposed in the first chamber 91, and the first motor 33 is disposed in the first chamber 91 and the second chamber 92. You may straddle and arrange. Alternatively, the first fan case 31 and the first fan 32 may be disposed across the first chamber 91 and the second chamber 92, and the first motor 33 may be disposed in the second chamber 92. In the latter case, at least the suction port 31 a of the first fan case 31 needs to be located in the first chamber 91. The same applies to the second fan case.

(Modification 4)
In the first and second embodiments, the case where the ventilation device includes the duct 70 has been described. However, the present invention is not limited to this. A configuration in which the ventilation device does not include the duct 70 is also conceivable. In this case, an air supply outlet is formed in the third side surface portion 13 instead of the first side surface portion 11, and the air outlet 31 b of the first fan case 31 is formed in the third side surface portion 13 of the first fan unit 30. What is necessary is just to arrange | position so that it may oppose with the supply air outlet.

(Modification 5)
In 2nd Embodiment, although the case where the air supply / exhaust port to be used was switched by rotating the movable part of the 2nd fan case 141 was demonstrated, it is not restricted to this.

For example, the ventilation device may include the second fan unit 40 instead of the second fan unit 140, and may switch the air supply / exhaust port to be used by rotating the entire second fan unit 40.

In addition, for example, the ventilator includes the second fan unit 40 instead of the second fan unit 140, and further, a flexible connecting the air outlet 41b of the second fan case 41 of the second fan unit 40 and the air supply / exhaust port. A hose may be provided. In this case, the air supply / exhaust port to be used may be switched by switching the connection destination of the hose between the first air supply / exhaust port 116a and the second air supply / exhaust port 114a.

(Modification 6)
In the second embodiment, a case has been described in which two air supply / exhaust ports, the first air supply / exhaust port 116a and the second air supply / exhaust port 114a, are formed in the housing 10, but the present invention is not limited to this. An air supply / exhaust port may be formed. For example, in addition to the first air supply / exhaust port 116a and the second air supply / exhaust port 114a, a third air supply / exhaust port is formed in the front portion 15, and the fixing portion 145 of the second fan unit 140 is replaced with the first duct portion 145a, In addition to the two duct portions 145b, a third duct portion may be included. The third duct portion connects the air outlet 146d and the third exhaust air outlet when the air outlet 146d of the cylinder portion 146a faces the third exhaust air outlet of the third air supply / exhaust port in the y direction (communication). )

Any combination of the above-described embodiments and modifications is also useful as an embodiment of the present invention. The new embodiment generated by the combination has the effects of the combined embodiment and the modified examples. In addition, it should be understood by those skilled in the art that the functions to be fulfilled by the constituent elements described in the claims are realized by the individual constituent elements shown in the embodiments and the modified examples or by their cooperation. .

The following invention is recognized from the above description.
A ventilation device according to an aspect of the present invention is disposed in a housing, a heat exchange element that is disposed in the housing, and performs heat exchange between air sucked from outside and air sucked from indoors. And a fan unit for exhausting air sucked from the indoors to the outdoors. A plurality of exhaust outlets are formed in the housing, and the exhaust outlet serving as an exhaust destination of the fan unit is switched.

According to this aspect, it is possible to switch the exhaust outlet for exhausting the air sucked from indoors to the outside.

The fan unit may include a fan and a fan case that houses the fan. By rotating at least a part of the fan case, the exhaust outlet serving as the exhaust destination of the fan unit may be switched.

The housing may include a back surface portion that is in contact with the wall and a side surface portion that is connected to the back surface portion. A first exhaust outlet is formed on the back surface, a second exhaust outlet is formed on the side surface, and the fan case accommodates a fan and has a cylindrical main body with an outlet formed on the side surface. And a first duct part whose one end is connected to the first exhaust outlet and a second duct part whose one end is connected to the second exhaust outlet. When the main body rotates in the circumferential direction, the duct connected to the outlet may be switched.

The casing is elongated, and the heat exchange element and the fan unit are arranged so as to be aligned in the longitudinal direction of the casing, and the fan unit has a rotation axis of the fan orthogonal to the longitudinal direction and the normal direction of the back surface portion. It may be arranged as follows.

10 housing, 14 4th side face part, 16 back face part, 20 heat exchange element, 140c second exhaust outlet, 140 second fan unit, 144 movable part, 145 fixed part, 116c first exhaust outlet, 200 ventilator .

The present invention can be used for a ventilator, particularly a ventilator provided with a heat exchange element.

Claims (4)

A housing,
A heat exchange element disposed in the housing for exchanging heat between air sucked from outside and air sucked from indoors;
A fan unit that is disposed in the housing and exhausts air sucked from indoors to the outside, and
The casing is formed with a plurality of exhaust outlets,
A ventilator configured to switch an exhaust outlet serving as an exhaust destination of the fan unit. The fan unit includes a fan and a fan case that houses the fan,
The ventilator according to claim 1, wherein an exhaust outlet serving as an exhaust destination of the fan unit can be switched by rotating at least a part of the fan case. The housing includes a back surface portion that comes into contact with a wall, and a side surface portion connected to the back surface portion,
A first exhaust outlet is formed on the back surface, and a second exhaust outlet is formed on the side surface;
The fan case is
A cylindrical main body portion in which the fan is accommodated and a blow-out port is formed on a side surface;
A first duct portion having one end connected to the first exhaust outlet,
A second duct portion having one end connected to the second exhaust outlet,
The ventilation apparatus according to claim 2, wherein a duct portion connected to the air outlet is switched by rotating the main body portion in the circumferential direction. The housing is elongated,
The heat exchange element and the fan unit are arranged to be aligned in the longitudinal direction of the housing,
The ventilator according to claim 3, wherein the fan unit is arranged so that a rotation axis of the fan is orthogonal to the longitudinal direction and a normal direction of the back surface portion.

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