JP6097931B2 - Heat exchange ventilator - Google Patents

Description

  The present invention relates to a heat exchange type ventilator for exchanging heat between outside air and room air.

Conventionally, as this type of ventilator, a ventilator that is installed in a building, introduces outside air from an outside air supply port, and supplies the outside through a built-in heat exchange element is known. (For example, see Patent Document 1)
Hereinafter, the ventilation air conditioner will be described with reference to FIG.

  As shown in FIG. 18, the ventilator main body 101 is installed in an attic space or a ceiling space in a building. Fresh outside air is introduced from the outside air inlet 102, passes through the built-in heat exchange element 103, and is supplied to the room through the indoor inlet 104. On the other hand, the dirty air in the room is introduced from the indoor exhaust port 105, passes through the heat exchange element unit 103, and is exhausted to the outside through the outdoor exhaust port 106. Fresh fresh air introduced from the outside air supply port 102 and indoor dirty air introduced from the indoor exhaust port 105 are connected to the electric motor 107 through the heat exchange element unit 103 and connected to the electric motor 107 on the same shaft 108. And an exhaust fan 110 for transfer.

JP-A-11-325535

  In such a conventional heat exchange type ventilator, the exterior case has a structure that also serves as an air supply and exhaust passage. That is, cold outdoor air flows through the supply air blowing path, and cold exhaust air after heat exchange flows through the exhaust ventilation path. These cold air is in thermal contact with the air around the main body through the exterior case to exchange heat. At this time, the attic space or the ceiling space where the heat exchange type ventilator main body is installed is not necessarily insulated and air-conditioned, and there is a concern about the occurrence of condensation. In order to prevent the occurrence of the dew condensation, a conventional heat exchange type ventilator attaches a heat insulating material to the outside and inside of the outer case. However, sticking the heat insulating material requires a large number of man-hours, and there is a problem of increasing the number of parts of the heat insulating material itself.

  Therefore, the present invention solves the above-described conventional problems, and the exterior case and the exterior case are configured by holding the interior case that internally includes the air supply and exhaust passages inside the exterior case. It is an object of the present invention to insulate between the outer case and the cold air flowing through the air supply path and the exhaust air path formed in the interior case, and to suppress the occurrence of condensation.

In order to achieve this object, the present invention provides an outside air intake port for taking air from the outside into the main body, an indoor air exhaust port for discharging indoor air from the main body to the outside, and blows out air from the main body into the room. An indoor air outlet, and an indoor air inlet that sucks exhaust air from the room into the main body, and an air supply / air supply path that communicates outdoor air from the outside air inlet to the indoor air outlet inside the main body, An exhaust air passage that communicates indoor air from the indoor air intake port to the indoor air exhaust port, a fan motor section provided in each of the air supply air passage and the exhaust air passage, and the air supply air passage In the heat exchange type ventilator in which a heat exchange element part for exchanging heat between indoor air and outdoor air is arranged at a position where the exhaust air blowing path intersects, the fan motor part and the heat exchange element part are held It is those having the outer case covering the outside of the interior casing and the interior casing, thereby is to achieve the intended purpose.

  According to the present invention, an outside air intake port for taking in air from the outside into the main body, an indoor air exhaust port for discharging indoor air from the main body to the outside, an indoor air outlet for blowing air from the main body into the room, and a main body from the room An indoor air suction port for sucking exhaust air into the main body, and an air supply / air flow path for communicating outdoor air from the outside air suction port to the indoor air outlet in the main body, and indoor air as the indoor air suction port An exhaust air passage that communicates with the indoor air exhaust port, a fan motor unit provided in each of the air supply air passage and the exhaust air passage, and the air supply air passage and the exhaust air passage intersect. In the heat exchange type ventilator, in which a heat exchange element part for exchanging heat between indoor air and outdoor air is arranged at a position where the fan motor part and the heat exchange element part are held, and the interior case By providing the exterior case that covers the outside, the air layer that exists between the exterior case and the exterior case insulates between the interior case and the exterior case, and the indoor air that exists outside the exterior case and the interior case Along with the effect of suppressing the occurrence of dew condensation caused by the heat exchange of the cold air flowing through the internal air supply and exhaust air passages, the number of heat insulating parts to be attached to the exterior and interior of the exterior case is reduced. An effect that can reduce the cost can be obtained.

The lower perspective view which shows the heat exchange type | mold ventilation apparatus of Embodiment 1 of this invention Side sectional view showing the same heat exchange type ventilator Side sectional view showing the exhaust ventilation path of the heat exchange type ventilator Lower perspective view showing an exterior case and an interior case of the heat exchange type ventilator Lower perspective view showing the interior case of the heat exchange type ventilator Plan sectional view showing the heat exchange type ventilator Upper perspective view showing the interior case of the heat exchange type ventilator Top view showing the interior case of the heat exchange type ventilator Lower partial perspective view showing the interior case of the heat exchange type ventilator A perspective view showing an exterior case of the heat exchange type ventilator and a partially enlarged view of an angle fixing boss The lower perspective view and the partial enlarged view of the angle showing the exterior case of the heat exchange type ventilator Exploded perspective view showing exterior case, interior cover and angle of the heat exchange type ventilator Cross-sectional perspective view and partial enlarged view showing the exterior case, interior cover, and angle of the heat exchange ventilator Exploded perspective view showing the inner case and outer case of the heat exchange ventilator An exploded perspective view showing the heat exchange type ventilator Plan sectional view showing the heat exchange type ventilator Upper perspective view showing the interior cover of the heat exchange type ventilator Side sectional view showing a conventional heat exchange ventilator

The heat exchange ventilator according to the present invention includes an outdoor air intake port for taking air from outside into the main body, an indoor air exhaust port for discharging indoor air from the main body to the outdoor, and an indoor air outlet for blowing air from the main body into the room And an indoor air suction port for sucking exhaust air from the room into the main body, and an air supply / air supply path for communicating outdoor air from the outside air suction port to the indoor outlet in the main body, An exhaust air blowing path communicating from the indoor air suction port to the indoor air exhaust port, a fan motor unit provided in each of the supply air blowing path and the exhaust air blowing path, the supply air blowing path, and the exhaust In a heat exchange type ventilator in which a heat exchange element unit that exchanges heat between indoor air and outdoor air is arranged at a position where the air flow path intersects, an interior case that holds the fan motor unit and the heat exchange element unit , In which an outside case covering the outside of the interior case. As a result, the air layer existing between the interior case and the exterior case insulates between the interior case and the exterior case, the indoor air existing in the outer case of the exterior case, the air supply / air supply path and the exhaust air blower inside the interior case There is an effect that it is possible to suppress the occurrence of condensation caused by heat exchange of cold air flowing through the path. In addition, there is an effect that it is possible to reduce the cost by reducing the heat insulating material to be attached to the outside and inside of the outer case in order to prevent condensation.

  The interior case includes a heat exchange element unit holding unit and a fan motor fixing unit, and the heat exchange element unit alternately includes the air supply and air flow path and the air supply air flow path by the stacked heat exchange element. An exhaust air blowing path is formed, and in the fan motor fixing part, the supply air blowing path and the exhaust air blowing path are divided by a partition part on which a motor fixing plate is mounted. As a result, the interior case can serve as a ventilation path, and the number of air path forming parts can be reduced, thereby reducing the number of assembly steps and reducing the cost.

  The outer case has a box shape with the bottom side open, and an air layer is provided between the inner case and the outer case on a side surface, and the inner surface of the outer case and the outer surface of the inner case are outside. Are fixed through a sealing material. Thereby, while fixing an exterior case and an interior case reliably, the heat insulation layer between an interior case and an exterior case is ensured and dew condensation prevention can be performed.

Further, a rib portion is provided on the top surface of the interior case, a boss portion is provided at a position corresponding to the rib portion inside the top surface of the exterior case, the seal material is pasted while avoiding the boss portion, and the rib It is good also as a structure hold | maintained inside the said exterior case by screw-connecting a part and the said boss | hub part. As a result, the sealing material provided between the outer case and the inner case can be fixed while being compressed, and the outflow of air from the air supply / exhaust air path formed by the internal case is prevented, and the air supply / air supply path There is an effect that it is possible to suppress the occurrence of dew condensation caused by the mixing of the blast air and the blast air in the exhaust blast path.
The interior case is configured to attach the interior cover and cover the bottom surface side to constitute a part of the air supply and exhaust passage. Thereby, the ventilation path can be configured inside the interior case, and by separating the outside of the main body and the blowing air, it is possible to suppress the occurrence of dew condensation caused by the mixing of the room air and the blowing air. .
The interior cover may be fixed to an angle with an L-shaped cross section having a fixed surface fixed with a screw to the boss portion on the inner side surface of the exterior case and a surface bent at 90 degrees with respect to the fixed surface. . Thereby, an interior cover can be fixed to an exterior case, without installing a screw with high heat conductivity inside a ventilation course, and it has the effect of suppressing generating of condensation by heat exchange which removed a screw.
The angle may further include a surface that contacts the inner wall surface of the exterior case. Thus, by correcting the warpage of the outer case by molding, the appearance of the outer case is finished straight, and there is an effect that the aesthetic appearance is not impaired.

The width of the fixed surface of the angle may be the same as the distance between the interior case and the exterior case. Since the space between the interior case and the exterior case is surely one side of the angle, there is an effect that reliable space insulation can be performed.
The interior case and the interior cover may be in contact with each other via a seal material. This prevents the outflow of air from the air supply / delivery path and the exhaust ventilation path that are configured inside the interior case and the interior cover, and keeps cold air between the interior case and the interior cover, thereby exchanging heat with the air outside the body. There is an effect that the occurrence of dew condensation can be suppressed.

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

(Embodiment 1)
About the heat exchange type | mold ventilation apparatus of the 1st Embodiment of this invention, an internal structure, an air supply ventilation path | route, and an exhaust ventilation path | route are demonstrated using FIG. As shown in FIG. 1, the heat exchanging ventilator 1 is provided with an indoor air suction port 5 at the lower part of a box-shaped main body, an outdoor air suction port 2, an indoor air exhaust port 3 on the side surface, and opposed to this side surface. The outside air supply port 4 is provided on the side surface.

As shown in FIG. 2, the heat exchanging ventilator 1 sucks fresh outdoor air from the outside air inlet 2 on the side surface, passes through the heat exchanging element portion 11 inside the heat exchanging ventilator 1, and supplies outside air. An air supply / air supply path 6 that is supplied into the room through the mouth 4 is provided. On the other hand, as shown in FIG. 3, the indoor contaminated air is sucked from the indoor air suction port 5, and has an exhaust air blowing path 7 that is exhausted from the indoor air exhaust port 3 to the outside through the heat exchange element portion 11. ing. At this time, the heat exchange element unit 11 supplies the heat quantity of the exhausted air to the supplied air, or supplies the heat quantity of the supplied air to the heat quantity of the exhausted air. have.
As shown in FIG. 2, fresh outdoor air introduced from the outside air inlet 2 and indoor contaminated air introduced from the indoor air inlet 5 are supplied to the motor 10 on the same shaft. The fan 8 and the exhaust fan 9 are operated to flow through the supply air blowing path 6 and the exhaust ventilation path 7, respectively. The heat exchange element unit 11 is disposed at a position where the supply air blowing path 6 and the exhaust ventilation path 7 intersect. The motor 10 is fixed to a motor fixing plate 16.
In addition, a duct (not shown) can be connected to each of the outside air inlet 2, the room air outlet 3, and the outside air inlet 4. The duct connected to the outside air inlet 2 and the room air outlet 3 is routed to the outer wall surface of the building and communicates with the outdoor air outside the building. The duct connected to the outside air supply port 4 communicates with the ceiling surface or wall surface of the living room and supplies outdoor air into the room.
The most characteristic part of the present embodiment is that the interior case 12 is attached to the interior of the exterior case 13 as shown in FIGS. The interior case 12 is shown in FIG. The interior case 12 fits and holds the heat exchange element portion 11 in the heat exchange element holding portion 18. Further, the motor fixing plate 16 is fixed to a motor fixing plate fixing boss 19 provided in the interior case 12 with screws, thereby holding the air supply fan 8, the exhaust fan 9 and the motor 10. As shown in FIG. 6, a heat insulating space 25 exists between the outer surface of the interior case 12 and the inner surface of the exterior case 13. The air supply / air flow path 6 and the exhaust air / air flow path 7 are surrounded by the heat insulating space 25. In the winter, cold air of the outside air exists in the air supply / airflow path 6, particularly in the air path from the outside air inlet 2 to the inflow portion of the heat exchange element portion 11. In the exhaust air flow path 7, the heat exchange element unit 11 from the heat exchange element unit 11 through which heat is exchanged with the outside air that has flowed in from the outside air suction port 2 and cooled indoor air flows out from the heat exchange element unit 11. There is cold air in the air path. In these air passage spaces, the heat insulating space 25 existing between the inner case 12 and the outer case 13 insulates between the outer surface of the inner case 12 and the inner side surface of the outer case 13 by adopting the above configuration. Therefore, it is possible to suppress the occurrence of dew condensation caused by heat exchange between the air in the building existing in the outer case of the exterior case 13 and the cold air flowing in the air supply and exhaust passage 6 and the exhaust air passage 7 in the interior case 12. it can. In addition, there is an effect that it is possible to reduce the cost by reducing the heat insulating material to be attached to the outside and inside of the outer case 13 in order to prevent condensation.
Further, details of the interior case 12 will be described. As shown in FIG. 5, the interior case 12 includes a heat exchange element holding part 18 and a fan motor fixing part 34. Furthermore, as shown in FIGS. 4 and 5, the interior case 12 has an outside air inlet connection port 20 and an indoor air exhaust port connection port 21. As shown in FIGS. 4 and 10, the exterior case 13 is a box shape with one side serving as a bottom surface, the outside air intake port 2 and the indoor air exhaust port 3 on one side surface, and the outside air supply port 4 on the opposite side surface. It is provided. As shown in FIG. 4, the outside air inlet port 20 and the indoor air outlet port 21 provided in the interior case 12 are located in the outside air inlet 2 and the room air outlet 3 provided in the exterior case 13. Connected by plugging. In this way, an air passage on the suction side of the air supply / air passage 6 and an air passage on the discharge side of the exhaust air passage 7 are formed.
Further, as shown in FIGS. 5, 8, and 9, the interior case 12 has an air supply air passage 6 in the outside air inlet 2 and the indoor air exhaust port 3, and an air supply / exhaust port partition 22 in the exhaust air passage 7. This air supply / exhaust port partition 22 is provided between the outside air inlet port connection port 20 and the indoor air exhaust port connection port 21, and there is no mixing of the air supply / air flow path 6 and the exhaust air flow path 7. An air path can be formed.
Further, as shown in FIG. 5, the interior case 12 is provided with an exhaust fan casing 23 integrally in the fan motor fixing portion 34. The motor fixing plate 16 is fixed to a motor fixing plate fixing boss 19 provided in the partition portion 33. In the fan motor fixing part 34, the supply air blowing path 6 and the exhaust blowing path 7 are divided by the partition part 33 that is a part of the exhaust fan casing part 23 and the motor fixing plate 16. The exhaust ventilation path 7 forms an air path from the heat exchange element unit 11 to the exhaust fan 9. The air discharged from the exhaust fan 9 flows from the exhaust fan casing discharge port 27 to the indoor air exhaust port connection port 21 and is exhausted to the outside through the indoor air exhaust port 3. Thus, the interior case 12 is configured to form the air passages of the air supply and exhaust passage 6 and the exhaust air passage 7. By setting it as the said structure, in the part in which the interior case 12 forms the air supply ventilation path 6 and the exhaust ventilation path 7 independently, a wind leak can be reduced and a sealing performance can be improved. Furthermore, the interior case 12 can also serve as a ventilation path, and there is an effect that the number of air path forming parts can be reduced, the number of assembling steps can be reduced, and the cost can be reduced.
As shown in FIG. 5, the interior case 12 is provided with an interior case fixing rib 24 at the upper end of the side surface. As shown in FIG. 10, the exterior case 13 is provided with an interior case fixing boss 28 inside. The inner case 12 is held inside the outer case 13 by screwing the inner case fixing rib 24 and the inner case fixing boss 28 inside the outer case 13. At this time, as shown in FIG. 14, the inner case 12 and the outer case 13 are fixed with the inner case seal material 26 interposed therebetween. That is, the interior case seal material 26 is attached to the inside of the top surface of the exterior case 13. The interior case seal material 26 enhances the sealing performance of the air passage space from the outlet of the heat exchange element portion 11 of the exhaust air blowing path 7 to the exhaust fan casing portion 23 shown in FIG. Prevent occurrence. Similarly, the interior case seal material 26 enhances the sealing performance of the space from the exhaust fan casing discharge port 27 to the indoor air exhaust port connection port 21 in the exhaust air blowing path 7, and prevents air leakage from the exhaust air blowing path 7. It was set as the structure which prevents generation | occurrence | production. According to the above configuration, the exterior case 13 and the interior case 12 fix the interior case seal material 26 provided therebetween while compressing. Therefore, the outflow of air from the supply air blowing path 6 and the exhaust ventilation path 7 which the interior case 12 constitutes is prevented, and the occurrence of condensation caused by mixing of the blowing air in the supply air blowing path 6 and the blowing air in the exhaust ventilation path 7 is prevented. There exists an effect that it can control.

  As shown in FIG. 11, the angle 30 is attached to an angle fixing boss 29 provided on the inner wall of the exterior case 13. The angle 30 is L-shaped in cross section with a fixing surface 35b screwed to at least the angle fixing boss 29 and an inscribed surface 35c formed so as to be bent in the longitudinal direction. ing.

  In the present embodiment, the angle 30 includes one surface (flange 35a) that comes into contact with the inner surface of the outer case 13, a surface bent at 90 degrees with respect to the surface (fixed surface 35b), and the fixing thereof. The surface 35b has a surface bent by 90 degrees (inscribed surface 35c), and further has a surface bent by 90 degrees with respect to the inscribed surface 35c (cover mounting surface 35d). The bending lines of these surfaces are parallel to the longitudinal direction of the angle 30. The cover mounting surface 35d is provided with an interior cover fixing screw hole 31 for fixing the interior cover 14 with screws. Further, the cover mounting surface 35d of the angle 30 has an internal cover fixing screw hole 31 for fixing the internal cover 14 with a screw, and the fixing surface 35b has a through hole 38 that matches the angle fixing boss 29. is there.

Thus, the cross-sectional shape of the angle 30 forms a surface in all four directions that form a generally rectangular shape.
Thereby, since the cross-sectional secondary coefficient is improved, the bending strength is dramatically improved. In the present embodiment, the shape of the cross section of the angle 30 is not a quadrangle, but a shape in which a flange 35a is added to a U-shape.

  As shown in FIG. 10, the angle fixing boss 29 is provided so as to form a space 40 between a wall surface without the exterior case 13. In the present embodiment, the angle fixing bosses 29 are provided at six locations on the inner wall surface of the outer case 13. The angle 30 is positioned by inserting a flange 35 a into a space 40 formed by the angle fixing boss 29. Then, the angle fixing boss 29 and the angle 30 are fixed with screws. At this time, the fixing surface 35b and the angle fixing boss 29 are screwed through a through hole 38 provided in the fixing surface 35b.

  As shown in FIG. 13, the inscribed surface 35 c of the angle 30 is in contact with the outer wall of the interior case 12. The interior cover 14 is fixed so that the cover mounting surface 35d of the angle 30 and the interior cover 14 are in contact with each other.

That is, as shown in FIG. 15, the interior cover 14 is fixed to the interior cover fixing screw hole 31 of the angle 30 with a screw, and covers the interior case 12. The interior case 12 and the interior cover 14 constitute an air supply / air flow path 6 and an exhaust air flow path 7 inside. Specifically, in the air supply / air blowing path 6, an air path from the outside air inlet 2 through the outside air inlet connection port 20 to the inflow portion of the heat exchange element unit 11 is formed. Then, an air path is formed from the outlet of the heat exchange element portion 11 through the air supply fan casing 17 to be sucked into the air supply fan 8. In the exhaust ventilation path 7, it was set as the structure which forms the air path from the front panel 15 to the inflow port to the heat exchange element part 11. FIG. By setting it as the said structure, a ventilation path | route is comprised inside the interior case 12 and the interior cover 14. FIG. In this way, it is possible to completely separate the outside of the main body and the blown air, and it is possible to suppress the occurrence of condensation caused by the mixing of the room air and the blown air.
Moreover, as shown in FIG. 16, the angle 30 is provided in the heat insulation space 25 shown in FIG. The heat insulating space 25 has a screw for fixing the inner cover 14 and the screw hole 31 for fixing the inner cover. By setting it as the said structure, the interior cover 14 can be fixed to the exterior case 13 without installing a screw with high heat conductivity in the ventilation path. Therefore, there is an effect of suppressing the occurrence of condensation due to heat exchange via the screw.

  With such a configuration, the heat insulating space 25 is secured by the angle 30 between the interior case 12 and the exterior case 13.

  Further, since the angle 30 is fixed along the long side of the outer case 13, it serves as a framework for the outer case 13. In general, the exterior case 13 and the like are often formed of resin because of the complexity of the shape, the appearance of the exterior, or the problem of dew condensation unique to the present heat exchanger ventilator. In such an external case 13, the longitudinal direction of the box shape is formed, and due to the material conditions, there is a tendency for the rigidity to be insufficient, the inside to fall as a defect in molding, or the outside to swell. Can be done.

  Further, in addition to fixing by the screw, the angle 30 is fixed by inserting the flange 35a into the gap (space 40) of the angle fixing boss 29, so that it contacts the inner wall surface of the outer case 13 and is attached along the inner wall surface. It will be. As a result, the long surface of the outer case 13 is kept straight due to the high rigidity of the angle 30. Therefore, deformation due to molding variation can be corrected, and the appearance is not impaired.

Further, the space 40 of the angle fixing boss 29 is formed by two thin ribs 39 having a resin thickness provided from the boss body toward the inner wall surface of the exterior case 13. For this reason, prevention of sink marks on molding in the exterior is achieved, leading to further improvement in aesthetic appearance.

  Further, as shown in FIGS. 13 and 16, the distance A, that is, the distance between the outer wall surface of the interior case 12 and the inner wall surface of the exterior case 13 that forms the heat insulation space 25 is the fixed surface 35 b of the angle 30. The height (the length of the short side of the fixed surface 35b) is the same. With such a configuration, the heat insulation space 25 is reliably maintained, so that uncertainty in distance due to molding variation of the outer case 13 can be eliminated, and reliable air insulation can be performed.

  As shown in FIG. 17, the interior cover 14 is in contact with the interior case 12 and the air supply fan casing 17 via the interior cover seal material 32. By setting it as the said structure, the outflow of the air from the air supply ventilation path 6 and the exhaust ventilation path 7 which are comprised in the interior case 12 and the interior cover 14 can be prevented. Further, by keeping the cold air between the interior case 12 and the interior cover 14, it is possible to suppress the occurrence of condensation by exchanging heat with the air from the outside of the main body.

  Thus, according to the heat exchange ventilator of Embodiment 1 of the present invention, the air layer that exists between the outer case 13 and the inner case 12 insulates between the inner case 12 and the outer case 13, Condensation that occurs due to heat exchange between the air in the building existing in the outer case of the exterior case 13 and the cold air flowing through the air supply and exhaust passages 6 and 7 inside the interior case 12 is suppressed. And the effect which can acquire the effect which can reduce the number of parts of the heat insulating material affixed on the exterior and inside of the exterior case 13, and can reduce a cost is produced.

  The heat exchange type ventilator according to the present invention is effective for applications such as a duct type heat exchange air device and a duct type air conditioner for the purpose of exchanging heat between outside air and room air.

DESCRIPTION OF SYMBOLS 1 Heat exchange type ventilator 2 Outside air intake port 3 Indoor air exhaust port 4 Outside air inlet port 5 Indoor air inlet port 6 Supply air ventilation route 7 Exhaust air supply route 8 Supply air fan 9 Exhaust fan 10 Motor 11 Heat exchange element part DESCRIPTION OF SYMBOLS 12 Interior case 13 Exterior case 14 Interior cover 15 Front panel 16 Motor fixing plate 17 Air supply fan casing 18 Heat exchange element holding part 19 Motor fixing plate fixing boss 20 Outside air intake port connection port 21 Indoor air exhaust port connection port 22 Supply Exhaust port partition 23 Exhaust fan casing 24 Internal case fixing rib 25 Heat insulation space 26 Internal case seal material 27 Exhaust fan casing discharge port 28 Internal case fixing boss 29 Angle fixing boss 30 Angle 31 Internal cover fixing screw hole 32 Interior cover seal material 33 Partition part 34 Fan motor fixing part 5a flange 35b fixed surface 35c inscribed surface 35d cover mounting surface 38 through hole 39 rib 40 space

Claims (8)

Outside air intake port for taking air from outside into the main body,
An indoor air exhaust port for discharging indoor air from the main body to the outside;
An indoor outlet that blows air from the body into the room;
It has an indoor air inlet that sucks exhaust air from the room into the main body,
Inside the main body, an air supply and ventilation path for communicating outdoor air from the outside air inlet to the indoor outlet,
An exhaust air blowing path communicating indoor air from the indoor air inlet to the indoor air outlet;
Indoor air and outdoor air are heat-exchanged at positions where the fan motor unit provided in each of the air supply and exhaust air paths and the air supply and air exhaust paths intersect each other. In the heat exchange ventilator with the heat exchange element part,
Chi lifting and interior casing which holds the fan motor unit and the heat exchanger element, the outer case covering the outside of the interior casing,
The outer case has a box shape with the bottom side open,
Between the interior case and the exterior case, an air layer is provided on the side surface,
A heat exchange type ventilator characterized in that the inner surface of the outer case and the outer surface of the inner case are fixed via a sealant . The interior case has a heat exchange element part holding part and a fan motor fixing part,
In the heat exchange element section, the supply air blowing path and the exhaust ventilation path are alternately formed by a stacked heat exchange element,
The heat exchange ventilator according to claim 1, wherein the fan motor fixing portion divides the supply air blowing path and the exhaust ventilation path by a partition portion on which a motor fixing plate is mounted. A rib is provided on the top surface of the interior case,
A boss part is provided at a position corresponding to the rib part inside the top surface of the exterior case,
Affixing the sealing material avoiding the boss part,
Heat exchange type ventilator according to claim 1, wherein the threaded connection of the boss portion and the rib portion. The heat exchange ventilator according to any one of claims 1 to 3 , wherein the interior case constitutes a part of the air supply and exhaust passage by attaching an interior cover and covering the bottom surface side. Outside air intake port for taking air from outside into the main body,
An indoor air exhaust port for discharging indoor air from the main body to the outside;
An indoor outlet that blows air from the body into the room;
It has an indoor air inlet that sucks exhaust air from the room into the main body,
Inside the main body, an air supply and ventilation path for communicating outdoor air from the outside air inlet to the indoor outlet,
An exhaust air blowing path communicating indoor air from the indoor air inlet to the indoor air outlet;
Indoor air and outdoor air are heat-exchanged at positions where the fan motor unit provided in each of the air supply and exhaust air paths and the air supply and air exhaust paths intersect each other. In the heat exchange ventilator with the heat exchange element part,
An interior case that holds the fan motor part and the heat exchange element part, and an exterior case that covers the outside of the interior case,
The interior cover is fixed to an angle with an L-shaped cross section having a fixed surface fixed with a screw to a boss portion on an inner side surface of the exterior case and a surface bent at 90 degrees with respect to the fixed surface. heat exchange type ventilator you. The heat exchange type ventilator according to claim 5 , wherein the angle further has a surface abutting against an inner wall surface of the exterior case. The heat exchange type ventilation apparatus according to claim 5 or 6 , wherein a width of the fixed surface of the angle is equal to a distance between the inner case and the outer case. Outside air intake port for taking air from outside into the main body,
An indoor air exhaust port for discharging indoor air from the main body to the outside;
An indoor outlet that blows air from the body into the room;
It has an indoor air inlet that sucks exhaust air from the room into the main body,
Inside the main body, an air supply and ventilation path for communicating outdoor air from the outside air inlet to the indoor outlet,
An exhaust air blowing path communicating indoor air from the indoor air inlet to the indoor air outlet;
Indoor air and outdoor air are heat-exchanged at positions where the fan motor unit provided in each of the air supply and exhaust air paths and the air supply and air exhaust paths intersect each other. In the heat exchange ventilator with the heat exchange element part,
An interior case that holds the fan motor part and the heat exchange element part, and an exterior case that covers the outside of the interior case,
The interior case constitutes a part of the air supply and exhaust path by attaching an interior cover and covering the bottom side,
The heat exchange type ventilator characterized in that the interior case and the interior cover are in contact with each other through a sealing material.