EP3633284A1 - Duct connection port and ventilation device - Google Patents
Duct connection port and ventilation device Download PDFInfo
- Publication number
- EP3633284A1 EP3633284A1 EP17911905.2A EP17911905A EP3633284A1 EP 3633284 A1 EP3633284 A1 EP 3633284A1 EP 17911905 A EP17911905 A EP 17911905A EP 3633284 A1 EP3633284 A1 EP 3633284A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- connection port
- duct connection
- duct
- hull
- heat exchange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 10
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 16
- 239000000428 dust Substances 0.000 description 6
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0209—Ducting arrangements characterised by their connecting means, e.g. flanges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0263—Insulation for air ducts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
Definitions
- the present invention relates to a duct connection port that is mounted to a ventilator, and the ventilator.
- Ventilators including a heat exchange ventilator have duct connection ports for connection to ducts.
- the duct connection ports are formed integrally with or separately from a ventilator body. If the duct connection ports are formed separately from the ventilator body, the plurality of duct connection ports required per ventilator can be used as common parts. Forming the duct connection ports and the ventilator body separately from each other also increases flexibility in packing of the ventilator.
- a heat-insulating layer is disposed on the duct and the duct connection port for the purpose of preventing dew condensation.
- a ventilator disclosed in Patent Literature 1 includes an air passage unit and a heat-insulating unit that are assembled together.
- Patent Literature 1 Japanese Patent No. 5079137
- the duct connection port is defined by the assemblage of the air passage unit and the heat-insulating unit, which incurs costs for making the heat-insulating unit as well as for assembling the air passage unit and the heat-insulating unit together. Additionally, an increased parts count also increases the weight and impairs ease of the assemblage.
- the present invention has been made in view of the above, and an object of the present invention is to obtain a duct connection port that eliminates the necessity of assembling an air passage unit and a heat-insulating unit together and suppresses increase of a parts count.
- the present invention provides a duct connection port that is to be mounted to a ventilator for connection to a ventilation duct.
- the duct connection port includes an outer hull including a cylindrical part to be connected to the duct, and an inner hull provided inside the outer hull in a spaced relation to the outer hull and defines a passage for a ventilation air flow.
- the outer hull and the inner hull are integral with each other.
- the duct connection port according to the present invention eliminates the necessity of assembling the air passage unit and the heat-insulating unit together, and can suppress the increase of the parts count.
- FIG. 1 is a perspective view of a heat exchange ventilator according to the first embodiment of the present invention.
- FIG. 2 is an exploded perspective view of the heat exchange ventilator according to the first embodiment.
- the heat exchange ventilator 30 is the ventilator according to the first embodiment and includes duct connection ports 22 mounted to its body casing 1.
- the body casing 1 is a sheet-metal formed product and is in the shape of a hexahedral box having a top plate 12, side plates 13, 14, 15, and 16, and a bottom plate 17.
- Each of styrene formed products 6, 7, 8, 9, 10, and 11, which define a box, is mounted on an inner side of a corresponding one of the top plate 12, the side plates 13, 14, 15, and 16, and the base plate 17.
- an air supply blower 3a and 3b Installed in the box-shaped structure defined by the styrene formed products 6, 7, 8, 9, 10, and 11 are an air supply blower 3a and 3b, an air exhaust blower 4a and 4b, and a heat exchanger 2. Wires (not illustrated) drawn from the air supply blower 3a and 3b and the air exhaust blower 4a and 4b are connected to a terminal block inside a circuit box 18 through an opening (not illustrated). That is, power lines and signal lines can be connected to the air supply blower 3a and 3b and the air exhaust blower 4a and 4b via the terminal block of the circuit box 18 in the heat exchange ventilator 30. Electric dampers that are capable of switching between heat exchange ventilation and non-heat exchange ventilation are mounted in openings 16a formed in the side plate 16. If the motorized dampers are not mounted, the openings 16a are closed with closing plates 19.
- the styrene formed product 11 serves as a drain pan.
- An upper surface of the styrene formed product 11 is coated with a resin.
- Acrylonitrile butadiene styrene (ABS) can be used as the resin coating the upper surface of the styrene formed product 11, but the coating is not limited to this.
- the heat exchanger 2 includes a supply air passage and an exhaust air passage formed independently of each other, and heat exchange is effected between air passing through the supply air passage and air passing through the exhaust air passage. Detailed descriptions of the supply air passage and the exhaust air passage are omitted.
- a rib frame body 5 mounted to the styrene formed product 7 engages an angular part of the heat exchanger 2 and thus separates the supply air passage from the exhaust air passage.
- An outside-air dust filter frame unit 20 is provided on a windward side of the supply air passage of the heat exchanger 2.
- a room-interior-return-air dust filter frame unit 21 is provided on a windward side of the exhaust air passage of the heat exchanger 2. The outside-air dust filter frame unit 20 and the room-interior-return-air dust filter frame unit 21 are removable from the side plate 14.
- FIG. 3 is a perspective view of the duct connection port of the heat exchange ventilator according to the first embodiment.
- FIG. 4 is a top view of the duct connection port of the heat exchange ventilator according to the first embodiment.
- FIG. 5 is a front view of the duct connection port of the heat exchange ventilator according to the first embodiment.
- FIG. 6 is a side view of the duct connection port of the heat exchange ventilator according to the first embodiment.
- FIG. 7 is a sectional view of the duct connection port of the heat exchange ventilator according to the first embodiment.
- FIG. 7 is the sectional view taken along line VII-VII in FIG. 4 .
- the duct connection ports 22 are mounted in air passage openings 13a and 15a formed in the side plates 13 and 15.
- each of the duct connection ports 22 serves as any one of a port intended for supply of air into a room interior, a return air inlet, an exhaust air outlet, and an outside-air inlet.
- the duct connection port 22 includes a base 22a and cylindrical parts 22b, 22c, and 22d.
- the base 22 serves as a mounting base when mounted to the side plate 13 or 15.
- the cylindrical parts 22b, 22c, and 22d are of tubular shape.
- An inside of the cylindrical part 22b defines an air passage that allows a flow of supply or exhaust air coming from the heat exchange ventilator 30 to pass therethrough.
- the cylindrical part 22b has an outside diameter of 125 mm and is connectable to a duct having an inside diameter of 125 mm.
- the cylindrical parts 22c and 22d which are cylinders of different diameters, are arranged stepwise relative to the cylindrical part 22b.
- the cylindrical part 22c has an outside diameter of 150 mm
- the cylindrical part 22d has an outside diameter of 175 mm. It is to be noted that the individual outside diameters of the cylindrical parts 22b, 22c, and 22d are not limited to the above values.
- FIG. 8 is a perspective view of the duct connection port as seen from a mounting surface of the duct connection port of the heat exchange ventilator according to the first embodiment.
- a guide projection 22g that projects as a positioning part.
- the guide projection 22g fits in the air passage opening 13a or 15a, thereby positioning the duct connection port 22.
- a packing is preferably affixed to the guide projection 22g of the duct connection port 22 and the mounting surface of the base 22a that is to be attached to the side plate 13 or 15.
- the guide projection 22g is formed as an extension of an inner hull 22h that defines an air passage of the duct connection port 22.
- the guide projection 22g is contiguous with the inner hull 22h.
- the inner hull 22h, which defines the air passage, and the guide projection 22g are inwardly spaced away from the cylindrical parts 22c and 22d, thereby forming air spaces 22j.
- the cylindrical parts 22c and 22d define a part of an outer hull of the duct connection port 22.
- the air spaces 22j serve as heat-insulating layers that function to prevent dew condensation.
- the inner hull 22h defining the air passage is formed integrally with the guide projection 22g, the base 22a, and the cylindrical parts 22b, 22c, and 22d that define the outer hull of the duct connection port 22.
- the duct connection port 22 is a single-piece, resin formed product.
- the cylindrical part 22d is similar to a shape having its outer side truncated by planes parallel to a central axis of the cylindrical part 22d.
- the cylindrical part 22d having the outside diameter of 175 mm is of a shape truncated by planes that are parallel to the inner hull 22h and adjoin an outer peripheral surface of the cylindrical part 22c having the outside diameter of 150 mm.
- Truncated portions 22e are formed in an opposed relation to each other with the cylindrical part 22d interposed therebetween.
- the cylinder having the outside diameter of 175 mm has its opposite sides cut, such that each of the opposite sides has its radial dimension reduced by 12.5 mm.
- a tape that seals a gap between the duct and the cylindrical part 22d generally has a width of 50 mm. If the gap between the duct and the cylindrical part 22d increases, in order to seal the gap, the tape has a smaller width for a duct part to adhesively overlie, so that there is a possibility of sealing performance deterioration. For this reason, an amount by which the cylindrical part 22d is radially cut is preferably 12.5 mm maximum.
- FIG. 9 is a plan view of the heat exchange ventilator according to the first embodiment.
- FIG. 10 is a side view of the heat exchange ventilator according to the first embodiment.
- FIG. 10 illustrates the heat exchange ventilator 30 as seen from the side plate 14. Because the cylindrical part 22d has the truncated portions 22e formed partly thereon as illustrated in FIG. 3 , the base 22a, which serves as the mounting base when the duct connection port 22 is mounted to the side plate 13 or 15, can have a decreased height dimension. In this way, the heat exchange ventilator 30 can have a decreased outside dimension as illustrated in FIG. 10 .
- the duct connection port 22 enables the duct having the inside diameter of 125 mm to be connected to the cylindrical part 22b.
- the duct connection port 22 also enables a duct having an inside diameter of 150 mm to be connected to the cylindrical part 22c.
- the duct connection port 22 also enables a duct having an inside diameter of 175 mm to be connected to the cylindrical part 22d.
- the duct connection port 22 can be connected to the ducts of different inside diameters. Because the ducts of different inside diameters can be connected directly without use of any member that changes the duct diameter, pressure loss can be reduced as compared to a case where the member which changes the duct diameter is used. Therefore, the use of the duct connection port 22 can increase ventilation capacity of the heat exchange ventilator 30.
- the guide projection 22g fits in the air passage opening 13a or 15a, thereby temporarily positioning the duct connection port 22 at the air passage opening 13a or 15a.
- the duct connection port 22 is screwed to the side plate 13 or 15 through the through holes 22f formed in the base 22a serving as the mounting base. Because the use of the guide projection 22g can temporarily position the duct connection port 22 at the air passage opening 13a or 15a, it is unlikely that workability is impaired even when visibility is poor or when a foothold is unstable.
- the air spaces 22j positioned above and below the inner hull 22h serve as the heat-insulating layers, thereby eliminating the necessity of providing the duct connection port 22 with heat insulators such as styrene formed products respectively at its top and bottom.
- FIG. 11 is a top view of a duct connection port of a different structure of the heat exchange ventilator according to the first embodiment.
- FIG. 12 is a front view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment.
- FIG. 13 is a side view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment.
- FIG. 14 is a sectional view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment.
- FIG. 14 is the sectional view taken along line XIV-XIV in FIG. 11 .
- the duct connection port 23 includes a base 23a, and cylindrical parts 23b, 23c, and 23d.
- the base 23a serves as a mounting base when mounted to the side plate 13 or 15.
- the cylindrical parts 23b, 23c, and 23d are of tubular shape. Truncated portions 23e are formed in an opposed relation to each other with the cylindrical part 23d interposed therebetween. Formed in the base 23a are through holes 23f that allow screws to pass therethrough when the duct connection port 23 is mounted to the side plate 13 or 15.
- a guide projection 23g is formed as an extension of an inner hull 23h that defines an air passage of the duct connection port 23.
- the guide projection 23g is contiguous with the inner hull 23h.
- the inner hull 23h, which defines the air passage, and the guide projection 23g are inwardly spaced away from the cylindrical parts 23c and 23d, thereby forming an air space 23j.
- the cylindrical parts 23c and 23d define a part of an outer hull of the duct connection port 23.
- the air space 23j serves as a heat-insulating layer that functions to prevent dew condensation.
- the inner hull 23h, which defines the air passage of the duct connection port 23, and the guide projection 23g are formed in an inwardly spaced relation to the cylindrical parts 23c and 23d defining the part of the outer hull, such that the air space 23j can be formed along the entire periphery of the inner hull 23h defining the air passage.
- FIG. 15 is a top view of a duct connection port of a different structure of the heat exchange ventilator according to the first embodiment.
- FIG. 16 is a front view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment.
- FIG. 17 is a side view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment.
- FIG. 18 is a sectional view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment.
- FIG. 18 is the sectional view taken along line XVIII-XVIII in FIG. 15 .
- the duct connection port 24 includes a base 24a, and cylindrical parts 24b, 24c, and 24d.
- the base 24a serves as a mounting base when mounted to the side plate 13 or 15.
- the cylindrical parts 24b, 24c, and 24d are of tubular shape. Truncated portions 24e are formed in an opposed relation to each other with the cylindrical part 24d interposed therebetween.
- Formed in the base 24a are through holes 24f that allow screws to pass therethrough when the duct connection port 24 is mounted to the side plate 13 or 15.
- a guide projection 24g is formed as an extension of an inner hull 24h that defines an air passage of the duct connection port 24.
- the guide projection 24g is contiguous with the inner hull 24h.
- the inner hull 24h, which defines the air passage, and the guide projection 24g are inwardly spaced away from the cylindrical parts 24c and 24d, thereby forming an air space 24j.
- the cylindrical parts 24c and 24d define a part of an outer hull of the duct connection port 24.
- the air space 24j serves as a heat-insulating layer that functions to prevent dew condensation.
- the air space 24j of the duct connection port 24 illustrated in FIGS. 15 to 18 is formed along the entire periphery of the inner hull 24h defining the air passage.
- Each of the duct connection ports 22, 23, and 24 according to the first embodiment is the single-piece, resin formed product having no undercuts and thus can be removed from a mold when the mold is opened in one direction. For this reason, mold preparation cost can be reduced.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Duct Arrangements (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
- The present invention relates to a duct connection port that is mounted to a ventilator, and the ventilator.
- Ventilators including a heat exchange ventilator have duct connection ports for connection to ducts. The duct connection ports are formed integrally with or separately from a ventilator body. If the duct connection ports are formed separately from the ventilator body, the plurality of duct connection ports required per ventilator can be used as common parts. Forming the duct connection ports and the ventilator body separately from each other also increases flexibility in packing of the ventilator.
- If a ventilator is to be installed in a cold region where dew condensation takes place in winter, in some case, a heat-insulating layer is disposed on the duct and the duct connection port for the purpose of preventing dew condensation.
- A ventilator disclosed in
Patent Literature 1 includes an air passage unit and a heat-insulating unit that are assembled together. - Patent Literature 1: Japanese Patent No.
5079137 - For the above-mentioned invention disclosed in
Patent Literature 1, the duct connection port is defined by the assemblage of the air passage unit and the heat-insulating unit, which incurs costs for making the heat-insulating unit as well as for assembling the air passage unit and the heat-insulating unit together. Additionally, an increased parts count also increases the weight and impairs ease of the assemblage. - The present invention has been made in view of the above, and an object of the present invention is to obtain a duct connection port that eliminates the necessity of assembling an air passage unit and a heat-insulating unit together and suppresses increase of a parts count.
- To solve the above-stated problems and achieve the object, the present invention provides a duct connection port that is to be mounted to a ventilator for connection to a ventilation duct. The duct connection port includes an outer hull including a cylindrical part to be connected to the duct, and an inner hull provided inside the outer hull in a spaced relation to the outer hull and defines a passage for a ventilation air flow. The outer hull and the inner hull are integral with each other.
- The duct connection port according to the present invention eliminates the necessity of assembling the air passage unit and the heat-insulating unit together, and can suppress the increase of the parts count.
-
-
FIG. 1 is a perspective view of a heat exchange ventilator according to a first embodiment of the present invention. -
FIG. 2 is an exploded perspective view of the heat exchange ventilator according to the first embodiment. -
FIG. 3 is a perspective view of a duct connection port of the heat exchange ventilator according to the first embodiment. -
FIG. 4 is a top view of the duct connection port of the heat exchange ventilator according to the first embodiment. -
FIG. 5 is a front view of the duct connection port of the heat exchange ventilator according to the first embodiment. -
FIG. 6 is a side view of the duct connection port of the heat exchange ventilator according to the first embodiment. -
FIG. 7 is a sectional view of the duct connection port of the heat exchange ventilator according to the first embodiment. -
FIG. 8 is a perspective view of the duct connection port as seen from a mounting surface of the duct connection port of the heat exchange ventilator according to the first embodiment. -
FIG. 9 is a plan view of the heat exchange ventilator according to the first embodiment. -
FIG. 10 is a side view of the heat exchange ventilator according to the first embodiment. -
FIG. 11 is a top view of a duct connection port of a different structure of the heat exchange ventilator according to the first embodiment. -
FIG. 12 is a front view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment. -
FIG. 13 is a side view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment. -
FIG. 14 is a sectional view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment. -
FIG. 15 is a top view of a duct connection port of a different structure of the heat exchange ventilator according to the first embodiment. -
FIG. 16 is a front view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment. -
FIG. 17 is a side view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment. -
FIG. 18 is a sectional view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment. - A detailed description of duct connection ports and a ventilator according to an embodiment of the present invention is provided hereinafter with reference to the drawings. It is to be noted that this embodiment is not restrictive of the invention.
-
FIG. 1 is a perspective view of a heat exchange ventilator according to the first embodiment of the present invention.FIG. 2 is an exploded perspective view of the heat exchange ventilator according to the first embodiment. Theheat exchange ventilator 30 is the ventilator according to the first embodiment and includesduct connection ports 22 mounted to itsbody casing 1. Thebody casing 1 is a sheet-metal formed product and is in the shape of a hexahedral box having atop plate 12,side plates bottom plate 17. Each of styrene formedproducts top plate 12, theside plates base plate 17. Installed in the box-shaped structure defined by the styrene formedproducts air supply blower air exhaust blower heat exchanger 2. Wires (not illustrated) drawn from theair supply blower air exhaust blower circuit box 18 through an opening (not illustrated). That is, power lines and signal lines can be connected to theair supply blower air exhaust blower circuit box 18 in theheat exchange ventilator 30. Electric dampers that are capable of switching between heat exchange ventilation and non-heat exchange ventilation are mounted inopenings 16a formed in theside plate 16. If the motorized dampers are not mounted, theopenings 16a are closed withclosing plates 19. - The styrene formed
product 11 serves as a drain pan. An upper surface of the styrene formedproduct 11 is coated with a resin. Acrylonitrile butadiene styrene (ABS) can be used as the resin coating the upper surface of the styrene formedproduct 11, but the coating is not limited to this. - The
heat exchanger 2 includes a supply air passage and an exhaust air passage formed independently of each other, and heat exchange is effected between air passing through the supply air passage and air passing through the exhaust air passage. Detailed descriptions of the supply air passage and the exhaust air passage are omitted. Arib frame body 5 mounted to the styrene formedproduct 7 engages an angular part of theheat exchanger 2 and thus separates the supply air passage from the exhaust air passage. An outside-air dustfilter frame unit 20 is provided on a windward side of the supply air passage of theheat exchanger 2. A room-interior-return-air dustfilter frame unit 21 is provided on a windward side of the exhaust air passage of theheat exchanger 2. The outside-air dustfilter frame unit 20 and the room-interior-return-air dustfilter frame unit 21 are removable from theside plate 14. - A description is provided next as to the
duct connection port 22.FIG. 3 is a perspective view of the duct connection port of the heat exchange ventilator according to the first embodiment.FIG. 4 is a top view of the duct connection port of the heat exchange ventilator according to the first embodiment.FIG. 5 is a front view of the duct connection port of the heat exchange ventilator according to the first embodiment.FIG. 6 is a side view of the duct connection port of the heat exchange ventilator according to the first embodiment.FIG. 7 is a sectional view of the duct connection port of the heat exchange ventilator according to the first embodiment.FIG. 7 is the sectional view taken along line VII-VII inFIG. 4 . Theduct connection ports 22 are mounted inair passage openings side plates - Depending on mounting position, each of the
duct connection ports 22 serves as any one of a port intended for supply of air into a room interior, a return air inlet, an exhaust air outlet, and an outside-air inlet. Theduct connection port 22 includes abase 22a andcylindrical parts base 22 serves as a mounting base when mounted to theside plate cylindrical parts cylindrical part 22b defines an air passage that allows a flow of supply or exhaust air coming from theheat exchange ventilator 30 to pass therethrough. In the first embodiment, thecylindrical part 22b has an outside diameter of 125 mm and is connectable to a duct having an inside diameter of 125 mm. Thecylindrical parts cylindrical part 22b. In the first embodiment, thecylindrical part 22c has an outside diameter of 150 mm, while thecylindrical part 22d has an outside diameter of 175 mm. It is to be noted that the individual outside diameters of thecylindrical parts - Formed in the
base 22a are throughholes 22f that allow screws to pass therethrough when theduct connection port 22 is mounted to theside plate -
FIG. 8 is a perspective view of the duct connection port as seen from a mounting surface of the duct connection port of the heat exchange ventilator according to the first embodiment. Formed on the mounting surface of thebase 22a that is to be attached to theside plate guide projection 22g that projects as a positioning part. When theduct connection port 22 is mounted to theside plate guide projection 22g fits in theair passage opening duct connection port 22. To prevent leakage of the air from theheat exchange ventilator 30, a packing is preferably affixed to theguide projection 22g of theduct connection port 22 and the mounting surface of thebase 22a that is to be attached to theside plate - As illustrated in
FIG. 7 , theguide projection 22g is formed as an extension of aninner hull 22h that defines an air passage of theduct connection port 22. Theguide projection 22g is contiguous with theinner hull 22h. Theinner hull 22h, which defines the air passage, and theguide projection 22g are inwardly spaced away from thecylindrical parts air spaces 22j. Thecylindrical parts duct connection port 22. Theair spaces 22j serve as heat-insulating layers that function to prevent dew condensation. - As illustrated in
FIG. 7 , theinner hull 22h defining the air passage is formed integrally with theguide projection 22g, thebase 22a, and thecylindrical parts duct connection port 22. In the first embodiment, theduct connection port 22 is a single-piece, resin formed product. - The
cylindrical part 22d is similar to a shape having its outer side truncated by planes parallel to a central axis of thecylindrical part 22d. In the first embodiment, thecylindrical part 22d having the outside diameter of 175 mm is of a shape truncated by planes that are parallel to theinner hull 22h and adjoin an outer peripheral surface of thecylindrical part 22c having the outside diameter of 150 mm.Truncated portions 22e are formed in an opposed relation to each other with thecylindrical part 22d interposed therebetween. In other words, the cylinder having the outside diameter of 175 mm has its opposite sides cut, such that each of the opposite sides has its radial dimension reduced by 12.5 mm. A tape that seals a gap between the duct and thecylindrical part 22d generally has a width of 50 mm. If the gap between the duct and thecylindrical part 22d increases, in order to seal the gap, the tape has a smaller width for a duct part to adhesively overlie, so that there is a possibility of sealing performance deterioration. For this reason, an amount by which thecylindrical part 22d is radially cut is preferably 12.5 mm maximum. -
FIG. 9 is a plan view of the heat exchange ventilator according to the first embodiment.FIG. 10 is a side view of the heat exchange ventilator according to the first embodiment.FIG. 10 illustrates theheat exchange ventilator 30 as seen from theside plate 14. Because thecylindrical part 22d has thetruncated portions 22e formed partly thereon as illustrated inFIG. 3 , thebase 22a, which serves as the mounting base when theduct connection port 22 is mounted to theside plate heat exchange ventilator 30 can have a decreased outside dimension as illustrated inFIG. 10 . - As described with reference to
FIG. 3 , theduct connection port 22 enables the duct having the inside diameter of 125 mm to be connected to thecylindrical part 22b. Theduct connection port 22 also enables a duct having an inside diameter of 150 mm to be connected to thecylindrical part 22c. Theduct connection port 22 also enables a duct having an inside diameter of 175 mm to be connected to thecylindrical part 22d. In other words, theduct connection port 22 can be connected to the ducts of different inside diameters. Because the ducts of different inside diameters can be connected directly without use of any member that changes the duct diameter, pressure loss can be reduced as compared to a case where the member which changes the duct diameter is used. Therefore, the use of theduct connection port 22 can increase ventilation capacity of theheat exchange ventilator 30. - A description is provided as to a process of mounting the
duct connection port 22 in theair passage opening side plate guide projection 22g fits in theair passage opening duct connection port 22 at theair passage opening duct connection port 22 is screwed to theside plate holes 22f formed in thebase 22a serving as the mounting base. Because the use of theguide projection 22g can temporarily position theduct connection port 22 at theair passage opening - The
air spaces 22j positioned above and below theinner hull 22h serve as the heat-insulating layers, thereby eliminating the necessity of providing theduct connection port 22 with heat insulators such as styrene formed products respectively at its top and bottom. -
FIG. 11 is a top view of a duct connection port of a different structure of the heat exchange ventilator according to the first embodiment.FIG. 12 is a front view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment.FIG. 13 is a side view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment.FIG. 14 is a sectional view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment.FIG. 14 is the sectional view taken along line XIV-XIV inFIG. 11 . Theduct connection port 23 includes abase 23a, andcylindrical parts base 23a serves as a mounting base when mounted to theside plate cylindrical parts Truncated portions 23e are formed in an opposed relation to each other with thecylindrical part 23d interposed therebetween. Formed in thebase 23a are throughholes 23f that allow screws to pass therethrough when theduct connection port 23 is mounted to theside plate guide projection 23g is formed as an extension of aninner hull 23h that defines an air passage of theduct connection port 23. Theguide projection 23g is contiguous with theinner hull 23h. Theinner hull 23h, which defines the air passage, and theguide projection 23g are inwardly spaced away from thecylindrical parts air space 23j. Thecylindrical parts duct connection port 23. Theair space 23j serves as a heat-insulating layer that functions to prevent dew condensation. As illustrated inFIGS. 11 to 14 , theinner hull 23h, which defines the air passage of theduct connection port 23, and theguide projection 23g are formed in an inwardly spaced relation to thecylindrical parts air space 23j can be formed along the entire periphery of theinner hull 23h defining the air passage. -
FIG. 15 is a top view of a duct connection port of a different structure of the heat exchange ventilator according to the first embodiment.FIG. 16 is a front view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment.FIG. 17 is a side view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment.FIG. 18 is a sectional view of the duct connection port of the different structure of the heat exchange ventilator according to the first embodiment.FIG. 18 is the sectional view taken along line XVIII-XVIII inFIG. 15 . Theduct connection port 24 includes abase 24a, andcylindrical parts base 24a serves as a mounting base when mounted to theside plate cylindrical parts Truncated portions 24e are formed in an opposed relation to each other with thecylindrical part 24d interposed therebetween. Formed in thebase 24a are throughholes 24f that allow screws to pass therethrough when theduct connection port 24 is mounted to theside plate guide projection 24g is formed as an extension of aninner hull 24h that defines an air passage of theduct connection port 24. Theguide projection 24g is contiguous with theinner hull 24h. Theinner hull 24h, which defines the air passage, and theguide projection 24g are inwardly spaced away from thecylindrical parts air space 24j. Thecylindrical parts duct connection port 24. Theair space 24j serves as a heat-insulating layer that functions to prevent dew condensation. Theair space 24j of theduct connection port 24 illustrated inFIGS. 15 to 18 is formed along the entire periphery of theinner hull 24h defining the air passage. - The
duct connection ports air spaces duct connection ports duct connection ports - Each of the
duct connection ports - The above description has been provided as to the
heat exchange ventilator 30 including theheat exchanger 2; however, theduct connection ports heat exchanger 2. - The above structures illustrated in the embodiment are illustrative of contents of the present invention, can be combined with other techniques that are publicly known and can be partly omitted or changed without departing from the gist of the present invention.
- 1 body casing; 2 heat exchanger; 3a, 3b air supply blower; 4a, 4b air exhaust blower; 5 rib frame body; 6, 7, 8, 9, 10, 11 styrene formed product; 12 top plate; 13, 14, 15, 16 side plate; 13a, 15a air passage opening; 16a opening; 17 base plate; 18 circuit box; 19 closing plate; 20 outside-air dust filter frame unit; 21 room-interior-return-air dust filter frame unit; 22, 23, 24 duct connection port; 22a, 23a base; 22b, 22c, 22d cylindrical part; 22e truncated portion; 22f through hole; 22g guide projection; 22h inner hull; 22j, 23j, 24j air space; 30 heat exchange ventilator.
Claims (4)
- A duct connection port to be mounted to a ventilator for connection to a ventilation duct, the duct connection port comprising:an outer hull including a cylindrical part to be connected to the duct; andan inner hull defining a passage for a ventilation air flow, the inner hull being provided inside the outer hull in a spaced relation to the outer hull,wherein the outer hull and the inner hull are integral with each other.
- The duct connection port according to claim 1, further comprising
a positioning part projecting from a mounting surface of the duct connection port to be mounted to the ventilator,
wherein the positioning part is formed as an extension of the inner hull, the positioning part being contiguous with the inner hull, the positioning part being positioned at the ventilator by fitting in an opening formed in the ventilator. - The duct connection port according to claim 1 or 2, wherein:the outer hull includes the cylindrical part fittingly engaging an inner periphery of the duct; andthe cylindrical part is of a cylindrical shape having an outer side truncated by a plane parallel to the inner hull.
- A ventilator comprising:a casing that is box-shaped;a blower housed in the casing; andthe duct connection port according to any one of claims 1 to 3, the duct connection port being mounted to the casing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2017/020002 WO2018220697A1 (en) | 2017-05-30 | 2017-05-30 | Duct connection port and ventilation device |
Publications (2)
Publication Number | Publication Date |
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EP3633284A1 true EP3633284A1 (en) | 2020-04-08 |
EP3633284A4 EP3633284A4 (en) | 2020-06-10 |
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Application Number | Title | Priority Date | Filing Date |
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EP17911905.2A Pending EP3633284A4 (en) | 2017-05-30 | 2017-05-30 | Duct connection port and ventilation device |
Country Status (3)
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EP (1) | EP3633284A4 (en) |
JP (1) | JPWO2018220697A1 (en) |
WO (1) | WO2018220697A1 (en) |
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JP2022127007A (en) | 2021-02-19 | 2022-08-31 | パナソニックIpマネジメント株式会社 | Ceiling embedded type ventilating fan |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4890864A (en) * | 1986-09-02 | 1990-01-02 | C-System Incorporated | Insulated duct end system |
JPH1082548A (en) * | 1996-09-05 | 1998-03-31 | Toshiba Corp | Duct coupling device |
JPH10141732A (en) * | 1996-11-13 | 1998-05-29 | Sanyo Electric Co Ltd | Ventilation fan for duct |
JP2003166738A (en) * | 2001-11-30 | 2003-06-13 | Sanyo Electric Co Ltd | Bathroom heater |
WO2010116466A1 (en) * | 2009-03-30 | 2010-10-14 | 三菱電機株式会社 | Duct connection opening and ventilation device |
KR20130117894A (en) * | 2009-04-27 | 2013-10-28 | 미쓰비시덴키 가부시키가이샤 | Heat exchanging ventilator |
JP5555585B2 (en) * | 2010-09-29 | 2014-07-23 | アズビル株式会社 | Fitting for air passage connection |
JP2012241979A (en) * | 2011-05-19 | 2012-12-10 | Mitsubishi Electric Corp | Duct connection port and ventilation apparatus |
JP5818701B2 (en) * | 2012-01-20 | 2015-11-18 | 三菱電機株式会社 | Ventilation equipment |
CA2923711C (en) * | 2015-03-13 | 2023-03-14 | Owens Corning Intellectual Capital, Llc | Flex duct connection system |
-
2017
- 2017-05-30 WO PCT/JP2017/020002 patent/WO2018220697A1/en active Application Filing
- 2017-05-30 JP JP2019521559A patent/JPWO2018220697A1/en active Pending
- 2017-05-30 EP EP17911905.2A patent/EP3633284A4/en active Pending
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WO2018220697A1 (en) | 2018-12-06 |
JPWO2018220697A1 (en) | 2019-11-07 |
EP3633284A4 (en) | 2020-06-10 |
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