WO2022070356A1

WO2022070356A1 - Ventilation device

Info

Publication number: WO2022070356A1
Application number: PCT/JP2020/037314
Authority: WO
Inventors: 祐樹宮崎; 庸充松原; 進藤井
Original assignee: 三菱電機株式会社
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2022-04-07
Also published as: JPWO2022070356A1; JP7357806B2

Abstract

This ventilation device comprises: a housing forming an outer shell; an inside structure (42) disposed inside of the housing and having a through-hole (42a) that is in communication with an air conduit provided inside of the housing; and a cylindrical duct connection port having connected thereto a duct that permits communication between the inside of the housing and the outside of the housing, and being provided to an outer surface of the housing in communication with the air conduit. The duct connection port has an attachment part that is a portion of the duct connection port, said attachment part being gripped between the inside structure and an outer shell component that forms the outer surface. With the ventilation device, it is possible to inhibit transmission of vibrations between the duct and the ventilation device via the duct connection port that connects the duct and the ventilation device.

Description

Ventilation system

The present disclosure relates to a ventilation device having at least one of a function of taking in air from the outside into a room and a function of discharging air from the room to the outside of the room.

Conventionally, like the heat exchange type ventilator shown in Patent Document 1, a heat exchange type ventilator installed in a building and ventilating while exchanging heat between the air from the outside and the air from the room is known. Has been done. In such a heat exchange type ventilator, in general, a duct connection port to which a duct through which air flows is connected by communicating the inside and the outside of the heat exchange type ventilator, and the inside and the inside of the heat exchange type ventilator are connected. The duct connection port, to which the duct through which air flows is connected, is fixed in direct contact with the parts of the housing that constitutes the outer shell of the heat exchange type ventilation device using fastening parts such as screws. There is.

Japanese Unexamined Patent Publication No. 2015-218923

However, when the duct connection port is fixed in direct contact with the housing parts using fastening parts, the vibration of the duct is transmitted to the main body of the heat exchange type ventilation device through the duct connection port, or heat is generated. There is a problem that the vibration of the main body of the replaceable ventilation device is transmitted to the duct through the duct connection port. When the vibration of the duct is transmitted to the main body of the heat exchange type ventilator, the vibration of the main body of the heat exchange type ventilator causes abnormal noise and causes noise, and the vibration of the main body for a long period of time causes the heat exchange type ventilator. It may cause a failure. Further, when the vibration of the main body of the heat exchange type ventilation device is transmitted to the duct, abnormal noise is generated due to the vibration of the duct, which causes noise.

The present disclosure has been made in view of the above, and obtains a ventilation device capable of suppressing the transmission of vibration between a duct and a ventilation device through a duct connection port connecting the duct and the ventilation device. With the goal.

In order to solve the above-mentioned problems and achieve the object, the ventilation device according to the present disclosure has a housing constituting the outer shell and a housing having a through hole communicating with an air passage provided inside the housing. A tubular duct connection provided on the outer surface of the housing that communicates with the air passage and connects the inner structure arranged inside the body and the duct that communicates the inside of the housing and the outside of the housing. With a mouth. In the duct connection port, a mounting portion that is a part of the duct connection port is sandwiched between the outer shell component constituting the outer surface and the inner structure.

The ventilation device according to the present disclosure has an effect that it is possible to suppress the transmission of vibration between the duct and the ventilation device through the duct connection port connecting the duct and the ventilation device.

An exploded perspective view showing a heat exchange type ventilator according to the first embodiment. It is a perspective view which shows the assembled state of the heat exchange type ventilator shown in FIG. 1, and is the figure which shows the state which the heat exchange type ventilator is hung on the wall surface of a building, and is installed. A perspective view showing a state in which the control board is pulled out from the heat exchange type ventilator shown in FIG. 2 to the outside of the housing. A perspective view showing a state in which various filters and various filter lids are removed from the heat exchange type ventilator shown in FIG. Top view of the heat exchange type ventilator according to the first embodiment Bottom view of the heat exchange type ventilator according to the first embodiment Front view of the heat exchange type ventilator according to the first embodiment Rear view of the heat exchange type ventilator according to the first embodiment Right side view of the heat exchange type ventilator according to the first embodiment Cross-sectional view taken along line XX shown in FIG. The perspective view which shows the heat exchange element of the heat exchange type ventilation apparatus which concerns on Embodiment 1. Sectional drawing which shows the attachment structure part of the outdoor suction port in the heat exchange type ventilation apparatus which concerns on Embodiment 1. FIG. 12 is an enlarged cross-sectional view showing the vicinity of the outdoor suction port flange in the mounting structure portion of the outdoor suction port shown in FIG. It is a figure which shows the state which removed the top plate and the cushioning material in the heat exchange type ventilation apparatus shown in FIG. 5, and is the figure which shows the structure of the outdoor suction port and the inner structure. A plan view showing the details of the mounting structure of the outdoor suction port shown in FIG. 14 in an enlarged manner. A plan view showing the details of the mounting structure of the outdoor suction port shown in FIG. 14 in an enlarged manner. It is sectional drawing which shows the deformation example of the mounting structure part of the outdoor suction port shown in FIG. 12, and is the plan view corresponding to FIG. FIG. 12 is a cross-sectional view showing a modified example of the mounting structure portion of the outdoor suction port shown in FIG. 12, and is a plan view corresponding to FIG. FIG. 12 is a cross-sectional view showing a modified example of the mounting structure portion of the outdoor suction port shown in FIG. 12, and is a plan view corresponding to FIG.

The ventilation device according to the embodiment will be described in detail below based on the drawings.

Embodiment 1.
FIG. 1 is an exploded perspective view showing a heat exchange type ventilation device 100 according to the first embodiment. FIG. 2 is a perspective view showing the assembled state of the heat exchange type ventilator 100 shown in FIG. 1, and is a view showing a state in which the heat exchange type ventilator 100 is hung on the wall surface 30 of the building and installed. Is. FIG. 3 is a perspective view showing a state in which the control board 15 is pulled out from the heat exchange type ventilation device 100 shown in FIG. 2 to the outside of the housing 1. FIG. 4 is a perspective view showing a state in which various filters and various filter lids are removed from the heat exchange type ventilator 100 shown in FIG. FIG. 4 shows a state in which the outside air filter 5, the exhaust filter 6, and the supply air filter 7, which are the filters provided in the heat exchange type ventilation device 100, are removed. Further, FIG. 4 shows a state in which the outside air filter lid 20, the exhaust filter lid 21, and the air supply filter lid 22, which are the filter lids provided in the heat exchange type ventilator 100, are removed. There is.

The heat exchange type ventilator 100 includes a housing 1, a heat exchange element 2, an air supply blower 3, an exhaust blower 4, an outside air filter 5, an exhaust filter 6, and an air supply filter 7. Further, the heat exchange type ventilation device 100 includes an outdoor suction port 8, an indoor suction port 9, an indoor air outlet 10, an outdoor air outlet 11, a drain pan 12, and an exhaust side drain port 13a. The air side drain port 13b, the operation unit 14, and the control board 15 are provided. The heat exchange type ventilation device 100 is a ventilation device that ventilates the room while exchanging heat between the air from the outside and the air from the room, and has a function of taking in the air from the outside and the air from the room. It is a ventilation device that has the function of discharging to the outside of the room. As shown in FIG. 2, the heat exchange type ventilation device 100 is hung on the wall surface 30 of the building near the ceiling surface 31 and installed.

The housing 1 is a box-shaped member constituting the outer shell of the heat exchange type ventilator 100. The shape of the housing 1 may be a cube, but in the present embodiment, it is a rectangular parallelepiped. The housing 1 has a top plate 1a, a bottom plate 1b, a front plate 1c, a back plate 1d, a left side plate 1e, and a right side plate 1f. In the first embodiment, the plate portion of the housing 1 in contact with the wall surface 30 is referred to as a back plate 1d, and the plate portion arranged on the opposite side of the back plate 1d from the wall surface 30 is referred to as a front plate 1c. When explaining the direction, the normal direction of the front plate 1c in the direction toward the outside of the housing 1 is the front, and the normal direction of the back plate 1d in the direction toward the outside of the housing 1 is the rear. The vertical direction seen from the user facing the face plate 1c is the vertical direction, and the horizontal direction seen from the user facing the front plate 1c is the horizontal direction. The front-rear direction, which is the direction along the normal direction of the front plate 1c and the normal direction of the back plate 1d, corresponds to the depth direction of the housing 1. The vertical direction corresponds to the height direction of the housing 1. The left-right direction corresponds to the width direction of the housing 1.

The normal of the top plate 1a in the direction toward the outside of the housing 1 faces upward. The plan view shape of the top plate 1a is rectangular. The top plate 1a has an outdoor suction port 8 which is a duct connection port for sucking air from the outside into the inside of the housing 1, and a duct connection port for sucking air from the room into the inside of the housing 1. A certain indoor suction port 9 is provided. The top plate 1a has an indoor air outlet 10 which is a duct connection port for blowing air from the outside to the outside of the housing 1, and a duct connection port for blowing air from the room to the outside of the housing 1. A certain outdoor air outlet 11 is provided.

A duct 27a connected to the outside is connected to the outdoor suction port 8 which is a duct connection port. A duct 27b connected to the room is connected to the indoor suction port 9 which is a duct connection port. A duct 27c connected to the room is connected to the indoor air outlet 10 which is a duct connection port. A duct 27d connected to the outside is connected to the outdoor outlet 11 which is a duct connection port. On the top plate 1a, an outdoor suction port 8, an indoor suction port 9, an indoor air outlet 10, an outdoor air outlet 11, and a design material 28 for hiding each

duct

27a, 27b, 27c, 27d are arranged. Has been done.

FIG. 5 is a plan view of the heat exchange type ventilation device 100 according to the first embodiment. Here, the line extending in the direction perpendicular to the front plate 1c and the back plate 1d through the center in the left-right direction of the top plate 1a is referred to as the center line C. The indoor side suction port 9 and the indoor side air outlet 10 are arranged on the top plate 1a to the left of the center line C. The outdoor suction port 8 and the outdoor outlet 11 are arranged on the top plate 1a to the right of the center line C. The outdoor suction port 8 is arranged in front of the outdoor air outlet 11 on the top plate 1a. The indoor side air outlet 10 is arranged in front of the indoor side suction port 9 in the top plate 1a. The outdoor suction port 8 and the indoor air outlet 10 are arranged at positions on the top plate 1a that coincide with each other in the front-rear direction. The indoor side suction port 9 and the outdoor side air outlet 11 are arranged at positions that coincide with each other in the front-rear direction on the top plate 1a.

FIG. 6 is a bottom view of the heat exchange type ventilator 100 according to the first embodiment. The normal of the bottom plate 1b in the direction toward the outside of the housing 1 faces downward. The bottom view shape of the bottom plate 1b is rectangular. The bottom plate 1b is arranged below the top plate 1a apart from the top plate 1a. The bottom plate 1b is formed with a substrate opening 16 that communicates the inside and the outside of the housing 1. The substrate opening 16 is an opening for pulling out the control board 15 to the outside of the housing 1 and inserting the control board 15 into the inside of the housing 1. The shape of the substrate opening 16 seen from below is rectangular. The substrate opening 16 is arranged in front of the center of the bottom plate 1b in the front-rear direction. In the first embodiment, the substrate opening 16 is arranged near the boundary portion of the bottom plate 1b with the front plate 1c. The bottom plate 1b is provided with an exhaust side drain port 13a and an air supply side drain port 13b. The exhaust side drain port 13a is arranged near the right rear corner of the bottom plate 1b in the first embodiment. The air supply side drain port 13b is arranged near the left rear corner of the bottom plate 1b in the first embodiment.

FIG. 7 is a front view of the heat exchange type ventilator 100 according to the first embodiment. The normal of the front plate 1c in the direction toward the outside of the housing 1 faces the front, which is the front. The front plate 1c connects the front ends of the top plate 1a and the bottom plate 1b to each other. The front view shape of the front plate 1c is rectangular. As shown in FIGS. 4 and 7, the front plate 1c has an opening 17 for an outside air filter, an opening 18 for an exhaust filter, and an opening for an air supply filter that communicate the inside of the housing 1 and the outside of the housing 1. The portion 19 is formed.

The outside air filter opening 17 is an opening for attaching the outside air filter 5 to the inside of the housing 1 and taking out the outside air filter 5 to the outside of the housing 1. The outside air filter opening 17 is arranged to the right of the center of the front plate 1c in the left-right direction. The shape of the opening 17 for the outside air filter seen from the front is rectangular. The outside air filter opening 17 is inclined so as to approach the right side plate 1f from the upper side to the lower side.

The outside air filter lid 20 can be opened and closed by attaching and detaching. The outside air filter lid 20 covers the outside air filter opening 17 when it is closed. Below the opening 17 for the outside air filter in the front plate 1c, an operation unit 14 for operating the operation start of the heat exchange type ventilation device 100 and the stop of the heat exchange type ventilation device 100 is provided. In the first embodiment, the operation unit 14 is arranged near the lower right corner of the front plate 1c.

The exhaust filter opening 18 is an opening for attaching the exhaust filter 6 to the inside of the housing 1 and taking out the exhaust filter 6 to the outside of the housing 1. The exhaust filter opening 18 is arranged to the left of the center of the front plate 1c in the left-right direction. Further, the exhaust filter opening 18 is provided at the same height as the outside air filter opening 17. The shape of the exhaust filter opening 18 seen from the front is rectangular. The exhaust filter opening 18 is inclined so as to approach the left side plate 1e from the upper side to the lower side.

The exhaust filter lid 21 can be opened and closed by attaching and detaching. The exhaust filter lid 21 covers the exhaust filter opening 18 when closed.

The air supply filter opening 19 is an opening for attaching the air supply filter 7 to the inside of the housing 1 and taking out the air supply filter 7 to the outside of the housing 1. The air supply filter opening 19 is arranged to the left of the center of the front plate 1c in the left-right direction. Further, the air supply filter opening 19 is arranged below the exhaust filter opening 18. The shape of the air supply filter opening 19 seen from the front is rectangular. The air supply filter opening 19 is inclined so as to approach the right side plate 1f from the upper side to the lower side.

The air supply filter lid 22 can be opened and closed by attaching and detaching. The air supply filter lid 22 covers the air supply filter opening 19 when it is closed.

FIG. 8 is a rear view of the heat exchange type ventilator 100 according to the first embodiment. The normal of the back plate 1d in the direction toward the outside of the housing 1 faces rearward. The back plate 1d connects the rear ends of the top plate 1a and the bottom plate 1b to each other. The rear view shape of the back plate 1d is rectangular.

FIG. 9 is a right side view of the heat exchange type ventilator 100 according to the first embodiment. The normal of the right side plate 1f in the direction toward the outside of the housing 1 faces to the right. The right side plate 1f connects the right end portions of the top plate 1a and the bottom plate 1b to each other. The side view shape of the right side plate 1f is rectangular. The normal in the left side plate 1e shown in FIG. 8 in the direction toward the outside of the housing 1 faces to the left. The left side plate 1e connects the left end portions of the top plate 1a and the bottom plate 1b to each other. The side view shape of the left side plate 1e is rectangular.

FIG. 10 is a cross-sectional view taken along the line XX shown in FIG. The solid arrow X shown in FIG. 10 indicates the flow of air from the outside to the inside, that is, the flow of air supply. The broken line arrow Y shown in FIG. 10 indicates the flow of air from the room to the outside, that is, the flow of exhaust gas. In addition, in FIG. 10, for the sake of facilitation of explanation, the outdoor side suction port 8 and the indoor side air outlet 10 are not shown in cross section. Inside the housing 1, an air supply air passage 23 for supplying air from the outside to the room and an exhaust air passage 24 for exhausting the air from the room to the outside are formed.

The air supply air passage 23 is an air passage that takes in outdoor air from the outdoor suction port 8 into the inside of the housing 1 and supplies air from the indoor air outlet 10 toward the room. The exhaust air passage 24 is an air passage that takes in indoor air from the indoor side suction port 9 into the inside of the housing 1 and exhausts it from the outdoor air outlet 11 toward the outdoor side. In the following description, the upstream and downstream are based on the flow direction of the air flowing through the supply air passage 23 or the exhaust air passage 24.

In the air supply air passage 23, an outside air filter 5, a heat exchange element 2, an air supply filter 7, and an air supply blower 3 are arranged in order from the upstream side. A part of the air supply air passage 23 is formed of the heat insulating component 25 shown in FIG. 1 in order to suppress the occurrence of dew condensation.

In the exhaust air passage 24, an exhaust filter 6, a heat exchange element 2, and an exhaust blower 4 are arranged in order from the upstream side. A part of the exhaust air passage 24 is formed of the heat insulating component 25 shown in FIG. 1 in order to suppress the occurrence of dew condensation.

The heat exchange element 2 is a member that exchanges heat between the outdoor air flowing in the air supply air passage 23 and the indoor air flowing in the exhaust air passage 24. The heat exchange element 2 is installed between the top plate 1a and the pedestal 12a in the housing 1. A space 29 for accommodating the control board 15 is formed between the pedestal 12a and the bottom plate 1b. The heat exchange element 2 is arranged at the center of the housing 1 in the left-right direction. In the first embodiment, the heat exchange element 2 is installed in a horizontal state with respect to the front-rear direction and in a state of being tilted with respect to the left-right direction, but is installed in a state of being horizontal or tilted with respect to any direction. May be good.

FIG. 11 is a perspective view showing the heat exchange element 2 of the heat exchange type ventilation device 100 according to the first embodiment. The shape of the heat exchange element 2 is not particularly limited as long as it is a polygonal column, but in the first embodiment, it is a hexagonal column. The heat exchange element 2 includes a plurality of partition members 2a arranged at intervals from each other, and a plurality of spacing members 2b for maintaining the spacing between the partition members 2a. The partition member 2a is formed in the form of a flatly processed sheet. The partition member 2a and the spacing member 2b are alternately laminated.

An air passage is formed between adjacent partition members 2a. The heat exchange element 2 is provided with air passages through which air from the outside flows and air passages through which air from the inside of the room flows alternately. In the first embodiment, the heat exchange element 2 is a countercurrent type heat exchange element in which the air flow direction from the outside and the air flow direction from the room are different by 180 degrees. The heat exchange element 2 may be an orthogonal type heat exchange element in which the air flow direction from the outside and the air flow direction from the room are orthogonal to each other.

The stacking direction, which is the direction in which the partition member 2a and the spacing member 2b are laminated, coincides with the front-rear direction in the first embodiment, and is the direction perpendicular to the front plate 1c and the back plate 1d. The stacking direction may be a direction that coincides with the vertical direction and is perpendicular to the top plate 1a and the bottom plate 1b, or may be a direction that coincides with the left-right direction and is perpendicular to the left side plate 1e and the right side plate 1f. By appropriately changing the material of the partition member 2a, the heat exchange element 2 may be configured to be capable of both sensible heat exchange and latent heat exchange, or to be configured to be capable of either sensible heat exchange or latent heat exchange. May be good.

As shown in FIG. 10, the air supply blower 3 is a blower arranged in the air supply air passage 23. The air supply blower 3 takes in air into the air supply air passage 23 from the outdoor suction port 8 and blows the air into the room from the indoor air outlet 10. The air supply blower 3 is arranged on the downstream side of the heat exchange element 2, the outside air filter 5, and the air supply filter 7.

The exhaust blower 4 is a blower arranged in the exhaust air passage 24. The exhaust blower 4 takes in air into the exhaust air passage 24 from the indoor side suction port 9, and blows air toward the outdoor side from the outdoor air outlet 11. The exhaust blower 4 is arranged on the downstream side of the exhaust filter 6 and the heat exchange element 2.

The outside air filter 5 is a member that is arranged in the air supply air passage 23 and collects foreign substances such as dust and insects contained in the air from the outside. The outside air filter 5 is arranged at a position downstream of the outdoor suction port 8 and at a position upstream of the heat exchange element 2. The outside air filter 5 is arranged at the inlet of the outdoor air in the heat exchange element 2. By collecting foreign matter such as dust with the outside air filter 5, clogging of the heat exchange element 2 due to the adhesion of the foreign matter can be suppressed. The outside air filter 5 is arranged to the right of the center of the housing 1 in the left-right direction.

The air supply filter 7 is a member that is arranged in the air supply air passage 23 and collects foreign substances such as dust and insects contained in the air from the outside. The air supply filter 7 is arranged at a position downstream of the heat exchange element 2 and at a position upstream of the indoor air outlet 10. The air supply filter 7 is arranged at the outlet of the outdoor air in the heat exchange element 2. By providing the outside air filter 5 and the air supply filter 7 which are two filters in the air supply air passage 23, the air from the outside can be further purified. The air supply filter 7 is arranged to the left of the center of the housing 1 in the left-right direction.

The exhaust filter 6 is a member that is arranged in the exhaust air passage 24 and collects foreign substances such as dust and insects contained in the air from the room. The exhaust filter 6 is arranged at a position downstream of the indoor suction port 9 and at a position upstream of the heat exchange element 2. The exhaust filter 6 is arranged at the inlet of the indoor air in the heat exchange element 2. The exhaust filter 6 is arranged to the left of the center of the housing 1 in the left-right direction.

The drain pan 12 is a member that is arranged below the heat exchange element 2 inside the housing 1 and collects the drain water generated by the heat exchange element 2. The drain pan 12 is arranged on the bottom plate 1b.

The exhaust side drain port 13a and the air supply side drain port 13b are members for discharging the drain water stored in the drain pan 12 to the outside of the housing 1. The exhaust side drain port 13a and the air supply side drain port 13b are formed in a cylindrical shape extending in the vertical direction. The exhaust side drain port 13a and the air supply side drain port 13b penetrate the bottom plate 1b and the drain pan 12. The lower ends of the exhaust side drain port 13a and the air supply side drain port 13b project downward from the bottom plate 1b. The upper ends of the exhaust side drain port 13a and the air supply side drain port 13b are provided at the same height as the bottom surface of the drain pan 12. In the first embodiment, the exhaust side drain port 13a and the air supply side drain port 13b are integrally formed with the drain pan 12.

The control board 15 is arranged in the space 29 below the heat exchange element 2 inside the housing 1. The control board 15 is electrically connected to the operation unit 14 shown in FIG. 1 by a cable (not shown). As shown in FIG. 1, the control board 15 has a first board 15a and a second board 15b. The first substrate 15a is a substrate connected to a power source (not shown). The first substrate 15a is housed in a box-shaped first substrate case 15c that opens downward. The second substrate 15b is a substrate having a connection unit, a control setting unit, and the like to which a sensor (not shown) is connected. The sensor connected to the second substrate 15b is, for example, a humidity sensor or a carbon dioxide (CO ₂ ) sensor. The second substrate 15b is attached to the second substrate case 15d. The substrate lid 15f is a lid that closes an opening for taking out the second substrate 15b to the outside of the housing 1.

FIG. 12 is a cross-sectional view showing a mounting structure portion of the outdoor suction port 8 in the heat exchange type ventilation device 100 according to the first embodiment. FIG. 13 is an enlarged cross-sectional view showing the vicinity of the outdoor suction port flange 40 in the mounting structure portion of the outdoor suction port 8 shown in FIG. FIG. 14 is a diagram showing a state in which the top plate 1a and the cushioning material 44 are removed in the heat exchange type ventilation device 100 shown in FIG. 5, and is a diagram showing the configuration of the outdoor suction port 8 and the inner structure 42. Is. In FIG. 14, since the inner structure 42 is shown focusing on the structural portion for fixing the outdoor suction port 8, the outer edge of the inner structure 42 is omitted, and the entire inner structure 42 is shown. Not. Further, in FIG. 14, the tapered shape of the outer peripheral surface 8a of the outdoor suction port 8 is omitted. Further, although FIG. 14 is a plan view, the upper end surface of the outdoor suction port 8 is hatched for easy understanding. FIG. 15 is an enlarged plan view showing the details of the mounting structure portion of the outdoor suction port 8 shown in FIG. In FIG. 15, the vicinity of the flange convex portion 41 is enlarged and shown. FIG. 16 is an enlarged plan view showing the details of the mounting structure portion of the outdoor suction port 8 shown in FIG. In FIG. 16, the vicinity of the cushioning material 44 is enlarged and shown.

The top plate 1a is an outer shell component that constitutes the outer shell of the housing 1. The top plate 1a is provided with an opening 1aa into which the outdoor suction port 8 is inserted. The outdoor suction port 8 which is a duct connection port is fixed in a state of being inserted into an opening 1aa provided in the top plate 1a. The opening 1aa has a shape similar to the outer peripheral shape of the outdoor suction port 8 and is formed larger than the outer peripheral portion of the outdoor suction port 8 facing at the same position as the top plate 1a in the vertical direction. In the first embodiment, the opening 1aa has a diameter larger than the diameter of the outer peripheral portion of the outdoor suction port 8 facing the top plate 1a at the same position in the vertical direction. As a result, the opening 1aa of the top plate 1a and the outdoor suction port 8 are in a positional relationship having no contact surface.

The inner structure 42 is a structure arranged at a position facing the top plate 1a inside the housing 1. The top plate 1a is a component of the housing 1 that constitutes the outer shell of the housing 1. The inner structure 42 functions as a holding portion for fixing the outdoor suction port 8 by sandwiching the outdoor suction port flange 40 and the flange convex portion 41, which are mounting portions of the outdoor suction port 8 to be described later, together with the top plate 1a. Has. That is, in the heat exchange type ventilation device 100, the outdoor suction port 8 which is a duct connection port has the outdoor suction port flange 40 and the flange convex portion 41 which are a part of the outdoor suction port 8 and the inner structure 42 and the ceiling. By being sandwiched between the plate 1a and the plate 1a, it is fixed without using fastening parts such as screws.

As the inner structure 42, a part of the constituent parts necessary for the configuration of the heat exchange type ventilation device 100 may be used. As the inner structure 42, for example, a part of the heat insulating component 25 constituting a part of the air supply air passage 23 can be used. Further, the inner structure 42 may be formed by expanding the constituent parts necessary for the configuration of the heat exchange type ventilation device 100. Further, the inner structure 42 may be provided as a dedicated component function as a holding portion when there is a space inside the housing 1. The inner structure 42 is supported and fixed by another member inside the housing 1. Further, when the inner structure 42 is fixed by the top plate 1a, it does not have to be fixed by another member inside the housing 1.

The outdoor suction port 8 is formed in a cylindrical shape extending in the vertical direction with the central axis 8c as an axis. The outer diameter of the outdoor suction port 8 has a truncated cone shape having a tapered shape in which the outer diameter increases from the upper side to the lower side. As shown in FIGS. 12 to 14, the outdoor suction port 8 is an annular outdoor suction port flange extending from the outer peripheral surface 8a of the outdoor suction port 8 in a direction perpendicular to the central axis 8c. 40 is provided on the outer peripheral surface 8a near the lower end. That is, the outdoor suction port flange 40 extends in the direction perpendicular to the central axis 8c of the outdoor suction port 8 and projects in an annular shape.

As shown in FIGS. 12 to 15, the outdoor suction port flange 40 has a flange convex portion 41 which is a plurality of convex portions distributed and arranged on the outer peripheral portion 40a of the annular shape. That is, the plurality of flange convex portions 41 are provided at positions separated from each other in the outer peripheral direction of the outer peripheral portion 40a on the outer peripheral portion 40a of the annular outdoor suction port flange 40. In the first embodiment, the outdoor suction port flange 40 has four flange convex portions 41 on the outer peripheral portion 40a of the annular shape. The four flange convex portions 41 are provided at positions rotated by 90 ° about the central axis 8c in the outer peripheral direction of the outer peripheral portion 40a in the plane of the surface perpendicular to the central axis 8c of the outdoor suction port 8. ing. The outdoor suction port flange 40 and the plurality of flange convex portions 41 are integrally formed with the outdoor suction port 8.

The outdoor side suction port flange 40 and the flange convex portion 41 are sandwiched and fixed between the top plate 1a and the inner structure 42 via a cushioning material 44 described later. That is, the outdoor suction port flange 40 and the flange convex portion 41 are housed and fixed between the top plate 1a and the inner structure 42. The outdoor suction port flange 40 and the flange convex portion 41 are a part of the outdoor suction port 8 housed between the top plate 1a and the inner structure 42 in order to attach the outdoor suction port 8 to the top plate 1a. It is a certain mounting portion, and is a sandwiched portion sandwiched between the top plate 1a and the inner structure 42.

The inner structure 42 has a circular through hole 42a that communicates with the air supply air passage 23, which is an air passage provided inside the housing 1. As shown in FIGS. 13 and 14, the inner structure 42 includes a first storage portion 42b for accommodating the outdoor suction port flange 40, a second storage portion 42c for accommodating the flange convex portion 41, and a cushioning material 44. A third storage portion 42d for storing is provided at the upper part of the inner peripheral surface. The second storage portion 42c is configured as a recess in which the outer peripheral portion of the first storage portion 42b is partially extended to the inside of the inner structure 42. Therefore, the second storage portion 42c for storing the flange convex portion 41 can be rephrased as an inner structure concave portion.

The first storage portion 42b has a first support surface 42e which is a surface that comes into contact with the outdoor suction port flange 40 and supports the outdoor suction port flange 40. As shown in FIG. 13, the second accommodating portion 42c has a second support surface 42f that contacts the flange convex portion 41 and supports the flange convex portion 41. As shown in FIG. 13, the third storage portion 42d has a third support surface 42g that comes into contact with the cushioning material 44 and supports the cushioning material 44.

The outdoor side suction port flange 40 and the flange convex portion 41 and the inner structure 42 have a positional relationship having a contact surface. That is, as shown in FIG. 13, the lower surface 40b of the outdoor suction port flange 40 is supported by the first support surface 42e of the inner structure 42 and is in contact with the first support surface 42e. The lower surface 41a of the flange convex portion 41 is supported by the second support surface 42f of the inner structure 42 and is in contact with the second support surface 42f. Further, the outdoor suction port flange 40 and the flange convex portion 41 and the top plate 1a are in a positional relationship having no contact surface.

In the heat exchange type ventilation device 100, the opening 1aa of the top plate 1a and the outdoor suction port 8 do not have a contact surface, and the outdoor suction port flange 40, the flange convex portion 41, and the top plate 1a are formed. Has no contact surface. As a result, in the heat exchange type ventilation device 100, the vibration of the duct 27a is not transmitted to the housing 1 through the outdoor suction port 8 which is the duct connection port. As a result, the vibration transmitted from the duct 27a to the housing 1 does not cause the housing 1 of the heat exchange type ventilation device 100 and the internal components of the housing 1 to vibrate, and the vibration transmitted from the duct 27a to the housing 1 It is possible to prevent the generation of abnormal noise and the occurrence of failure of the heat exchange type ventilation device 100 due to the above.

Further, in the heat exchange type ventilation device 100, the vibration of the heat exchange type ventilation device 100 is not transmitted to the duct 27a through the outdoor suction port 8 which is the duct connection port. As a result, the duct 27a does not vibrate due to the vibration transmitted from the housing 1 to the duct 27a, and it is possible to prevent the generation of abnormal noise due to the vibration transmitted from the housing 1 to the duct 27a.

The cushioning material 44 includes the flange convex portion 41, the outdoor suction port flange 40, and the top plate 1a in order to prevent the flange convex portion 41, the outdoor suction port flange 40, and the top plate 1a from directly interfering with the outdoor suction port flange 40 and the flange convex portion 41. It is a part arranged in the area including the space. The cushioning material 44 is formed in an annular sheet shape and is arranged on the outside of the outer peripheral surface 8a of the outdoor suction port 8. As shown in FIGS. 12 and 13, the cushioning material 44 has an inner structure 42, a flange convex portion 41, and an outdoor suction port flange in a plane perpendicular to the central axis 8c of the outdoor suction port 8. It is arranged in a positional relationship that overlaps with 40.

Further, the cushioning material 44 is in contact with the top plate 1a. That is, as shown in FIG. 13, the upper surface 44a of the cushioning material 44 is in contact with the lower surface 1ab of the top plate 1a. Further, the cushioning material 44 is in contact with the inner structure 42, the flange convex portion 41, and the outdoor suction port flange 40. That is, as shown in FIG. 13, the lower surface 44b of the cushioning material 44 is in contact with the third support surface 42g of the inner structure 42, the upper surface 41b of the flange convex portion 41, and the upper surface 40c of the outdoor suction port flange 40. There is.

The inner structure 42 and the cushioning material 44 are made of an elastic material. Having elasticity here means that the elasticity is at least larger than that of the outdoor suction port flange 40, that is, the elasticity is at least larger than that of the material constituting the outdoor suction port 8. And, having elasticity here can be said to have a larger elasticity than the outdoor suction port flange 40.

When the inner structure 42 is made of an elastic material, a vertical load acts on the outdoor suction port 8 and a vertical load acts on the outdoor suction port flange 40 and the flange convex portion 41. In addition, the vertical load applied to the inner structure 42 from the outdoor suction port flange 40 and the flange convex portion 41 can be alleviated by the action of the elastic material. As a result, in the heat exchange type ventilation device 100, it is possible to prevent the inner structure 42 from being damaged due to the vertical load applied to the inner structure 42 from the outdoor suction port flange 40 and the flange convex portion 41. can.

When the cushioning material 44 is made of an elastic material, a vertical load acts on the outdoor suction port 8 and a vertical load acts on the outdoor suction port flange 40 and the flange convex portion 41. The vertical load applied to the cushioning material 44 from the outdoor suction port flange 40 and the flange convex portion 41 can be alleviated by the action of the elastic material. As a result, in the heat exchange type ventilation device 100, it is possible to prevent the cushioning material 44 from being damaged due to the vertical load applied to the cushioning material 44 from the outdoor suction port flange 40 and the flange convex portion 41.

The inner structure 42 and the cushioning material 44 are preferably made of a foam material having both elasticity and heat insulating properties. An example of a foam material having both elasticity and heat insulating properties is Styrofoam. Having heat insulating properties means that the heat transfer characteristics are at least smaller than those of the outdoor suction port flange 40, that is, the heat transfer characteristics are smaller than those of the material constituting the outdoor suction port 8. And, having the heat insulating property here can be said to have higher heat insulating property than the outdoor suction port flange 40.

Since the inner structure 42 is made of a material having heat insulating properties, it is possible to suppress heat conduction from the outdoor suction port flange 40 and the flange convex portion 41 to the top plate 1a via the inner structure 42. As a result, when air having a low outside air temperature is taken into the inside of the housing 1 from the outdoor suction port 8, the outdoor suction port flange 40 and the flange convex portion 41 pass through the inner structure 42 to the top plate 1a. Due to heat conduction, the top plate 1a becomes below the dew point temperature, and it is possible to prevent the housing 1 including the top plate 1a from dew condensation.

Since the cushioning material 44 is made of a material having heat insulating properties, it is possible to suppress heat conduction from the outdoor suction port flange 40 and the flange convex portion 41 to the top plate 1a via the cushioning material 44. As a result, when air having a low outside air temperature is taken into the inside of the housing 1 from the outdoor suction port 8, heat from the outdoor suction port flange 40 and the flange convex portion 41 to the top plate 1a via the cushioning material 44. It is possible to prevent the housing 1 including the top plate 1a from dew condensation because the top plate 1a becomes lower than the dew point temperature due to the conduction.

Further, the inner structure 42 may be made of styrofoam, and the cushioning material 44 may be made of urethane-based foam material. Compared to Styrofoam, urethane-based foaming materials have advantages such as high heat insulating properties, less condensation, and easy shaping into a desired shape. Therefore, by using a urethane-based foam material for the cushioning material 44, when air having a low outside air temperature is taken into the inside of the housing 1 from the outdoor suction port 8, the outdoor suction port flange 40 and the flange convex portion 41 It is possible to further suppress that the temperature of the top plate 1a becomes lower than the dew point temperature due to heat conduction from the top plate 1a to the top plate 1a via the cushioning material 44 and the housing 1 including the top plate 1a is dewed.

A plurality of the above-mentioned second storage portions 42c, that is, the inner structure recesses, are dispersedly arranged on the annular inner peripheral surface 42h facing the outdoor side suction port flange 40 in the first storage portion 42b. That is, the plurality of second storage portions 42c are provided at positions corresponding to the flange convex portions 41 on the annular inner peripheral surface 42h of the first storage portion 42b in a state of being separated in the circumferential direction of the inner peripheral surface 42h. ing. In the first embodiment, the inner structure 42 has four second storage portions 42c. The four second storage portions 42c are 90 with respect to the central shaft 8c in the circumferential direction of the inner peripheral surface 42h of the first storage portion 42b in the plane of the plane perpendicular to the central shaft 8c of the outdoor suction port 8. It is installed at a position rotated by °.

The flange convex portion 41 of the outdoor suction port 8 and the second storage portion 42c of the inner structure 42 have shapes corresponding to each other. Then, as shown in FIGS. 14 and 15, the flange convex portion 41 and the second storage portion 42c correspond to the flange convex portion 41 by fitting the flange convex portion 41 and the second storage portion 42c. 2 The flange convex portion 41 can be fixed at the position of the storage portion 42c. As a result, in the heat exchange type ventilation device 100, when the torque in the rotational direction along the outer peripheral direction of the annular outer peripheral portion 40a is applied to the outdoor suction port 8, the outdoor suction port 8 rotates in the rotational direction. The effect of anti-rotation is obtained. That is, in the heat exchange type ventilator 100, the flange convex portion 41 fits into the second storage portion 42c, so that the rotation of the outdoor suction port 8 around the tubular axis is restricted.

Here, from the viewpoint of providing the second storage portion 42c in the inner structure 42, it is preferable to use a foam material such as styrofoam having elasticity and heat insulating properties as the material of the inner structure 42. A foam material such as Styrofoam is suitable as a material for the inner structure 42 because the shape can be easily formed and the second storage portion 42c can be easily formed.

As shown in FIGS. 12 and 13, the outdoor suction port 8 is a protrusion extending below the outdoor suction port flange 40 in the height direction of the housing 1 in a direction perpendicular to the extending direction of the flange convex portion 41. A flange protrusion 46, which is a portion, is provided. The flange protrusion 46 is formed in an annular shape centered on the central axis 8c of the outdoor suction port 8. The direction perpendicular to the extending direction of the flange convex portion 41 is the direction along the central axis 8c of the outdoor suction port 8.

On the other hand, the inner structure 42 is a recess portion 47 having an inner peripheral surface and a bottom surface having a shape corresponding to the outer shape of the flange protrusion 46 below the first storage portion 42b on the inner peripheral surface of the through hole 42a. Is provided.

In the first embodiment, the bottom surface 47a of the step portion 47 has a shape along the lower end portion 46a of the flange protrusion 46, and has an annular shape coaxial with the circular shape of the through hole 42a of the inner structure 42. Have. The height position of the bottom surface 47a of the step portion 47 is slightly lower than the position of the lower end portion 46a of the flange protrusion 46. The lower end portion 46a of the flange protrusion 46 can be rephrased as the lower end portion of the outdoor suction port 8.

Further, the inner peripheral surface 47b of the step portion 47 has a shape along the outer peripheral shape of the flange protrusion 46, and has a circular shape coaxial with the circular shape of the through hole 42a of the inner structure 42. The diameter of the inner peripheral surface 47b of the step portion 47 is provided to be slightly larger than the outer shape of the flange protrusion 46.

Then, the flange protrusion 46 is fitted into the step 47. In normal times, the flange protrusion 46 is not in contact with the bottom surface 47a of the step portion 47 and the inner peripheral surface 47b of the step portion 47. Therefore, in normal times, the corner portion 46b on the outer peripheral side of the lower end portion 46a of the flange protrusion portion 46 does not contact the bottom surface 47a of the step portion 47 and the inner peripheral surface 47b of the step portion 47.

In the heat exchange type ventilation device 100, the outer shape of the flange protrusion 46 and the shape of the inner peripheral surface 47b of the step portion 47 are the outer peripheral surface of the outdoor suction port 8 in the in-plane direction of the surface perpendicular to the central axis 8c. It is matched to the shape of 8a. As a result, in the heat exchange type ventilation device 100, when a downward load is applied to the outdoor suction port 8, the flange protrusion 46 and the step portion 47 can be brought into line contact with each other. The shape of the outer peripheral surface 8a of the outdoor suction port 8 in the in-plane direction of the surface perpendicular to the central axis 8c can be said to be the shape of the outer peripheral surface of the duct connection port. Therefore, the outer shape of the flange protrusion 46 and the shape of the inner peripheral surface 47b of the step portion 47 are shaped to follow the shape of the outer peripheral surface of the duct connection port.

That is, if the shape of the outer peripheral surface 8a of the outdoor suction port 8 in the in-plane direction of the surface perpendicular to the central axis 8c is circular, the outer shape of the flange protrusion 46 and the shape of the inner peripheral surface 47b of the step portion 47. Is matched with a circular shape along the shape of the outer peripheral surface 8a of the outdoor suction port 8 in the in-plane direction of the surface perpendicular to the central axis 8c. As a result, when a downward load is applied to the outdoor suction port 8, the outer peripheral side corner portion 46b and the inner circumference of the step portion 47 at the lower end portion 46a of the flange protrusion portion 46, which is a part of the flange protrusion portion 46. The surface 47b is in line contact.

Further, if the shape of the outer peripheral surface 8a of the outdoor suction port 8 in the in-plane direction of the surface perpendicular to the central axis 8c is rectangular, the outer shape of the flange protrusion 46 and the shape of the inner peripheral surface 47b of the step portion 47. To match the rectangular shape along the shape of the outer peripheral surface 8a of the outdoor suction port 8 in the in-plane direction of the surface perpendicular to the central axis 8c. As a result, when a downward load is applied to the outdoor suction port 8, the outer peripheral side corner portion 46b and the inner circumference of the step portion 47 at the lower end portion 46a of the flange protrusion portion 46, which is a part of the flange protrusion portion 46. The surface 47b is in line contact.

As a result, in the heat exchange type ventilation device 100, when a downward load is applied to the outdoor suction port 8, the outer peripheral side corner of the lower end portion 46a of the flange protrusion 46, which is a part of the flange protrusion 46. The line contact between the portion 46b and the inner peripheral surface 47b of the step portion 47 can prevent the outdoor suction port 8 from moving downward.

FIG. 17 is a cross-sectional view showing a modified example of the mounting structure portion of the outdoor suction port 8 shown in FIG. 12, and is a plan view corresponding to FIG. 13. FIG. 18 is a cross-sectional view showing a modified example of the mounting structure portion of the outdoor suction port 8 shown in FIG. 12, and is a plan view corresponding to FIG.

The cushioning material 44 may be provided with a cushioning material recess 44c for accommodating the outdoor suction port flange 40 and the flange convex portion 41 at a position corresponding to the flange convex portion 41. In this case, at least the position of the upper surface 41b of the flange convex portion 41 in the vertical direction is a position above the lower surface 44b of the cushioning material 44 and a position below the upper surface 44a of the cushioning material 44. The upper surface 40c of the outdoor suction port flange 40 adjacent to the upper surface 41b of the flange convex portion 41 is also positioned in the vertical direction above the lower surface 44b of the cushioning material 44 as well as the upper surface 41b of the flange convex portion 41. There may be a position below the upper surface 44a of the cushioning material 44. FIG. 17 shows a state in which the upper surface 41b of the flange convex portion 41 and the upper surface 40c of the outdoor suction port flange 40 are positioned above the lower surface 44b of the cushioning material 44 in the vertical direction.

In the direction perpendicular to the extending direction of the flange convex portion 41, the cushioning material concave portion 44c of the cushioning material 44 has a shape capable of accommodating the flange convex portion 41 of the outdoor suction port 8. The direction perpendicular to the extending direction of the flange convex portion 41 is the direction along the central axis 8c of the outdoor suction port 8. As shown in FIG. 18, the cushioning material recess 44c of the cushioning material 44 and the flange convex portion 41 of the outdoor suction port 8 are the cushioning material concave portion 44c of the cushioning material 44 and the flange convex portion 41 of the outdoor suction port 8. The flange convex portion 41 can be fixed at the position of the cushioning material concave portion 44c corresponding to the flange convex portion 41 by fitting the two.

As a result, in the heat exchange type ventilation device 100, when the torque in the rotational direction along the outer peripheral direction of the annular outer peripheral portion 40a is applied to the outdoor suction port 8, the outdoor suction port 8 rotates in the rotational direction. The effect of anti-rotation is obtained. That is, in the heat exchange type ventilator 100, the flange convex portion 41 fits into the cushioning material recess 44c, so that the rotation of the outdoor suction port 8 around the tubular axis is restricted.

Here, from the viewpoint of providing the cushioning material recess 44c in the cushioning material 44, it is preferable to use a foaming material such as styrofoam having elasticity and heat insulating properties as the material of the cushioning material 44. A foam material such as Styrofoam is suitable as a material for the cushioning material 44 because the shape can be easily formed and the cushioning material recess 44c can be easily formed.

FIG. 19 is a cross-sectional view showing a modified example of the mounting structure portion of the outdoor suction port 8 shown in FIG. 12, and is a plan view corresponding to FIG. In the configuration of the mounting structure portion of the outdoor suction port 8 shown in FIG. 19, the cushioning material 44 is arranged only on the inner structure 42. In this case, the flange convex portion 41 and the flange convex portion 41 of the outdoor suction port 8 are housed between the top plate 1a and the inner structure 42. The positions of the flange convex portion 41 and the flange convex portion 41 in the vertical direction are positioned below the upper surface 44a of the cushioning material 44. Even in this configuration, the outdoor suction port flange 40 and the flange convex portion 41 and the top plate 1a are in a positional relationship having no contact surface.

However, the flange convex portion 41 and the flange convex portion 41 of the outdoor suction port 8 are not sandwiched between the top plate 1a and the inner structure 42 via the cushioning material 44. Therefore, the outdoor suction port 8 is not completely fixed to the housing 1 but is attached to the housing 1, but the flange convex portion 41 and the flange convex portion 41 of the outdoor suction port 8 are the top plate 1a. Since it is housed between the inner structure 42 and the inner structure 42, it does not come off from the housing 1.

In the above modification, the cushioning material 44 is provided at a position where the cushioning material recess 44c corresponds to the flange convex portion 41. In the above modification, the cushioning material recess 44c accommodates the flange convex portion 41 in the direction perpendicular to the extending direction of the flange convex portion 41. In this case, at least the position of the upper surface 41b of the flange convex portion 41 in the vertical direction is a position above the lower surface 44b of the cushioning material 44 and a position below the upper surface 44a of the cushioning material 44.

The upper surface 40c of the outdoor suction port flange 40 adjacent to the upper surface 41b of the flange convex portion 41 is also positioned in the vertical direction above the lower surface 44b of the cushioning material 44 as well as the upper surface 41b of the flange convex portion 41. There may be a position below the upper surface 44a of the cushioning material 44.

In the direction perpendicular to the extending direction of the flange convex portion 41, the cushioning material concave portion 44c of the cushioning material 44 has a shape capable of accommodating the flange convex portion 41 of the outdoor suction port 8. The direction perpendicular to the extending direction of the flange convex portion 41 is the direction along the central axis 8c of the outdoor suction port 8. As shown in FIG. 19, the cushioning material recess 44c of the cushioning material 44 and the flange convex portion 41 of the outdoor suction port 8 are the cushioning material concave portion 44c of the cushioning material 44 and the flange convex portion 41 of the outdoor suction port 8. The flange convex portion 41 can be fixed at the position of the cushioning material concave portion 44c corresponding to the flange convex portion 41 by fitting the two.

As a result, in the above modification, when the torque in the rotational direction along the outer peripheral direction of the annular outer peripheral portion 40a is applied to the outdoor suction port 8, the outdoor suction port 8 rotates in the rotational direction. The effect of anti-rotation is obtained. That is, in the above modification, the flange convex portion 41 fits into the cushioning material recess 44c, so that the rotation of the outdoor suction port 8 around the tubular axis is restricted.

Also in the above modification, the opening 1aa of the top plate 1a and the outdoor suction port 8 do not have a contact surface, and the outdoor suction port flange 40 and the flange convex portion 41 and the top plate 1a are in contact with each other. It has no face. As a result, the vibration of the duct 27a is not transmitted to the housing 1 through the outdoor suction port 8 which is the duct connection port. As a result, the vibration transmitted from the duct 27a to the housing 1 does not cause the housing 1 of the heat exchange type ventilation device 100 and the internal components of the housing 1 to vibrate, and the vibration transmitted from the duct 27a to the housing 1 It is possible to prevent the generation of abnormal noise and the occurrence of failure of the heat exchange type ventilation device 100 due to the above.

Further, in the above modification, the vibration of the heat exchange type ventilation device 100 is not transmitted to the duct 27a through the outdoor suction port 8 which is the duct connection port. As a result, the duct 27a does not vibrate due to the vibration transmitted from the housing 1 to the duct 27a, and it is possible to prevent the generation of abnormal noise due to the vibration transmitted from the housing 1 to the duct.

The mounting structure of the duct connection port in the heat exchange type ventilation device 100 according to the first embodiment has been described above by taking the outdoor suction port 8 as an example. However, the indoor suction port which is a duct mounting port other than the outdoor suction port 8 has been described. The port 9, the indoor air outlet 10, and the outdoor air outlet 11 are all fixed to the top plate 1a of the housing 1 by the same mounting structure as the outdoor suction port 8.

In the mounting structure of the indoor suction port 9 to which the mounting structure of the duct connection port described above is applied, the inner structure 42 communicates with the exhaust air passage 24 which is an air passage provided inside the housing 1. It has a through hole. Further, in the mounting structure of the indoor air outlet 10 to which the mounting structure of the duct connection port described above is applied, the inner structure 42 communicates with the air supply air passage 23 which is an air passage provided inside the housing 1. It has a through hole. Further, in the mounting structure of the outdoor outlet 11 to which the mounting structure of the duct connection port described above is applied, the inner structure 42 communicates with the exhaust air passage 24 which is an air passage provided inside the housing 1. It has a through hole.

As described above, the heat exchange type ventilation device 100 according to the first embodiment is an annular outdoor side extending from the outer peripheral surface 8a of the outdoor side suction port 8 in a direction perpendicular to the central axis 8c. The suction port flange 40 and the flange convex portion 41 are housed and fixed between the top plate 1a and the inner structure 42. Further, the outdoor suction port flange 40 and the flange convex portion 41 and the inner structure 42 have a positional relationship having a contact surface. Further, the outdoor suction port flange 40 and the flange convex portion 41 and the top plate 1a are in a positional relationship having no contact surface. With the above configuration, in the heat exchange type ventilation device 100, the movement of the outdoor suction port flange 40 and the flange convex portion 41 in the vertical direction can be suppressed.

Further, in the heat exchange type ventilation device 100, the cushioning material 44 is arranged in the region including between the outdoor suction port flange 40 and the flange convex portion 41 and the top plate 1a. The cushioning material 44 is arranged in a positional relationship in which the inner structure 42, the outdoor suction port flange 40, and the flange convex portion 41 overlap each other in the plane of the surface perpendicular to the central axis 8c of the outdoor suction port 8. There is. Further, the cushioning material 44 is in contact with the top plate 1a.

With the above configuration, in the heat exchange type ventilation device 100, the outdoor suction port flange 40 and the flange convex portion 41 are sandwiched between the top plate 1a and the inner structure 42 via the cushioning material 44. Can be done. In the heat exchange type ventilation device 100, the cushioning material 44 can prevent the outdoor suction port flange 40 and the flange convex portion 41 from directly interfering with the top plate 1a, and the outdoor suction port flange 40 can be prevented from directly interfering with each other. And the state where the flange convex portion 41 and the top plate 1a do not have a contact surface can be reliably maintained.

Further, in the heat exchange type ventilation device 100, the cushioning material 44 is made of an elastic material, and the inner structure 42 is also made of an elastic material, so that the outdoor suction port flange 40 and the outdoor suction port flange 40 are made of the elastic material. The flange convex portion 41 can be sandwiched. As a result, in the heat exchange type ventilation device 100, when a vertical load is applied to the outdoor suction port 8, the vertical load applied to the cushioning material 44 and the inner structure 42 from the outdoor suction port 8 is elastic. It is possible to prevent the cushioning material 44 and the inner structure 42 from being damaged by alleviating the action of the material having the above.

Further, in the heat exchange type ventilation device 100, the outdoor suction port 8 which is a duct connection port for connecting the duct 27a for taking in the air from the outside into the room is a room which is a part of the outdoor suction port 8. The outer suction port flange 40 and the flange convex portion 41 are sandwiched between the inner structure 42 and the top plate 1a via a cushioning material 44. That is, the outdoor suction port 8 is fixed to the top plate 1a constituting the outer shell of the housing 1 without using fastening parts such as screws.

With the above configuration, in the heat exchange type ventilation device 100, the vibration of the duct 27a is not transmitted to the housing 1 through the outdoor suction port 8 which is the duct connection port. As a result, the vibration transmitted from the duct 27a to the housing 1 does not cause the housing 1 of the heat exchange type ventilation device 100 and the internal components of the housing 1 to vibrate, and the vibration transmitted from the duct 27a to the housing 1 It is possible to prevent the generation of abnormal noise and the occurrence of failure of the heat exchange type ventilation device 100 due to the above.

Further, with the above configuration, in the heat exchange type ventilation device 100, the vibration of the heat exchange type ventilation device 100 is not transmitted to the duct 27a through the outdoor suction port 8 which is the duct connection port. As a result, the duct 27a does not vibrate due to the vibration transmitted from the housing 1 to the duct 27a, and it is possible to prevent the generation of abnormal noise due to the vibration transmitted from the housing 1 to the duct 27a.

When the outdoor suction port 8 which is a duct connection port is directly fixed to the top plate 1a constituting the outer shell of the housing 1 via a fastening component, the outside air temperature is low from the outdoor suction port 8 to the inside of the housing 1. When the air is taken in, the outdoor suction port 8 and the fastening component form a thermal bridge, and dew condensation occurs on the outer shell of the housing 1.

On the other hand, in the heat exchange type ventilation device 100, the outdoor suction port 8 and the top plate 1a are fixed without using fasteners, and the outdoor suction port 8 and the top plate 1a are not directly fixed. As a result, in the heat exchange type ventilation device 100, it is possible to prevent the duct connection port and the fastening component from forming a thermal bridge, and when air with a low outside air temperature is taken into the inside of the housing 1 from the outdoor suction port 8. However, it is possible to suppress the occurrence of dew condensation on the outer shell of the housing 1 due to the thermal bridge via the outdoor suction port 8.

Further, in the heat exchange type ventilator 100, it is preferable to use a foam material such as Styrofoam having both elasticity and heat insulating properties for the inner structure 42. As a result, in the heat exchange type ventilation device 100, even if the top plate 1a constituting the outer shell of the housing 1 and the inner structure 42 are in contact with each other, the outside air temperature is low from the outdoor suction port 8 to the inside of the housing 1. When the air is taken in, the temperature of the top plate 1a becomes lower than the dew point temperature due to heat conduction from the inner structure 42 to the top plate 1a, and dew condensation can be suppressed.

Further, in the heat exchange type ventilation device 100, the flange convex portion 41 and the second accommodating portion 42c are fitted so that torque in the rotational direction along the outer peripheral direction of the annular outer peripheral portion 40a is applied to the outdoor suction port 8. When applied, the effect of preventing the outdoor suction port 8 from rotating in the rotation direction can be obtained.

Further, in the heat exchange type ventilation device 100, the flange convex portion 41 and the cushioning material concave portion 44c are fitted so that torque in the rotational direction along the outer peripheral direction of the annular outer peripheral portion 40a is applied to the outdoor suction port 8. At that time, the effect of preventing the outdoor suction port 8 from rotating in the rotation direction can be obtained.

Further, the outer shape of the outdoor suction port 8 is not limited to the shape of a truncated cone. The outdoor suction port 8 may have a tubular shape to which the duct 27a can be connected. The outer shape of the outdoor suction port 8 may be a cylindrical shape, a square tubular shape, or the like, or may be a shape provided with a step.

Further, in the above description, the heat exchange type ventilation device 100 that ventilates while exchanging heat between the air from the outside and the air from the room has been described as an example. It is also possible to use it as a duct connection port of a ventilation device that performs only exhaust and a duct connection port of a ventilation device that performs only exhaust. That is, the above-mentioned duct connection port mounting structure can be applied to a duct connection port in a ventilation device having at least one of a function of taking in air from the outside into a room and a function of discharging air from the room to the outside of the room.

The above-mentioned effects can also be obtained with the indoor suction port 9, the indoor air outlet 10, and the outdoor air outlet 11, which are duct attachment ports other than the outdoor suction port 8 in the heat exchange type ventilation device 100. ..

Therefore, according to the heat exchange type ventilator 100 according to the first embodiment, the heat exchange type ventilator 100 vibrates due to the vibration of the duct being transmitted to the heat exchange type ventilator 100 through the duct connection port. Can be suppressed. Further, according to the heat exchange type ventilation device 100, it is possible to suppress the vibration of the duct due to the vibration of the heat exchange type ventilation device 100 being transmitted to the duct through the duct connection port. Thereby, in the heat exchange type ventilation device 100, it is possible to suppress the transmission of vibration between the duct and the heat exchange type ventilation device 100 through the duct connection port connecting the duct and the heat exchange type ventilation device 100. , Has the effect.

The configuration shown in the above embodiment is an example, and can be combined with another known technique, or a part of the configuration may be omitted or changed without departing from the gist. It is possible.

1 housing, 1a top plate, 1aa opening, 1ab, 40b, 41a, 44b bottom surface, 1b bottom plate, 1c front plate, 1d back plate, 1e left plate, 1f right plate, 2 heat exchange element, 2a partition member, 2b Spacing member, 3 air supply blower, 4 exhaust blower, 5 outside air filter, 6 exhaust filter, 7 air supply filter, 8 outdoor suction port, 8c central axis, 8a outer peripheral surface, 9 indoor suction port, 10 room Inner air outlet, 11 outdoor air outlet, 12 drain pan, 12a pedestal, 13a exhaust side drain port, 13b air supply side drain port, 14 operation unit, 15 control board, 15a 1st board, 15b 2nd board, 15c 1st Board case, 15d second board case, 15f board lid, 16 board opening, 17 outside air filter opening, 18 exhaust filter opening, 19 air supply filter opening, 20 outside air filter lid, 21 exhaust Filter lid, 22 air supply filter lid, 23 air supply air passage, 24 exhaust air passage, 25 heat insulating parts, 27a, 27b, 27c, 27d duct, 28 design materials, 29 spaces, 30 wall surfaces, 31 ceiling surfaces, 40 rooms. Outer suction port flange, 40a outer peripheral part, 40c, 41b, 44a upper surface, 41 flange convex part, 42 inner structure, 42a through hole, 42b first storage part, 42c second storage part, 42d third storage part, 42e second 1 support surface, 42f 2nd support surface, 42g 3rd support surface, 42h inner peripheral surface, 44 cushioning material, 44c cushioning material recess, 46 flange protrusion, 46a lower end, 47 step, 47a bottom, 100 heat exchange type Ventilation device, C center line.

Claims

The housing that constitutes the outer shell and
An inner structure having a through hole communicating with an air passage provided inside the housing and arranged inside the housing, and an inner structure.
A tubular duct connection port that communicates with the air passage and is provided on the outer surface of the housing, to which a duct that communicates the inside of the housing and the outside of the housing is connected.
Equipped with
The duct connection port has a mounting portion that is a part of the duct connection port sandwiched between the outer shell component constituting the outer surface and the inner structure.
Ventilation system featuring.
The mounting portion is sandwiched between the outer component of the housing and the inner structure via a cushioning material.
The ventilation device according to claim 1.
The inner structure and the cushioning material are made of a material having higher elasticity than the mounting portion.
2. The ventilation apparatus according to claim 2.
The inner structure and the cushioning material are made of a material having a higher heat insulating property than the mounting portion.
The ventilation apparatus according to claim 2 or 3.
The inner structure and the cushioning material are made of a foam material.
The ventilation apparatus according to claim 4.
The inner structure is composed of Styrofoam and
The cushioning material is made of a urethane-based foaming material.
The ventilation apparatus according to claim 5.
The mounting portion is a flange provided so as to project from the outer peripheral surface of the duct connection port.
The flange comprises a flange protrusion protruding from the outer peripheral portion of the flange.
The cushioning material includes a cushioning material recess for accommodating the flange convex portion.
By fitting the flange convex portion into the cushioning material recess, the rotation of the duct connection port around the cylindrical axis of the duct connection port is restricted.
The ventilation apparatus according to any one of claims 2 to 6.
The mounting portion is a flange provided so as to project from the outer peripheral surface of the duct connection port.
The flange comprises a flange protrusion protruding from the outer peripheral portion of the flange.
The inner structure comprises an inner structure recess for accommodating the flange protrusion.
By fitting the flange convex portion into the inner structure concave portion, the rotation of the duct connection port around the cylindrical axis of the duct connection port is restricted.
The ventilation device according to any one of claims 1 to 7.
The duct connection port has a protrusion arranged apart from the inner peripheral surface of the through hole below the mounting portion in the height direction of the housing.
The outer shape of the protrusion and the inner peripheral surface of the through hole are shaped to follow the shape of the outer peripheral surface of the duct connection port.
When a downward load in the height direction of the housing is applied to the duct connection port, the outer peripheral corner of the lower end of the protrusion is in line contact with the inner peripheral surface of the through hole.
The ventilation device according to any one of claims 1 to 8.