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WO2018179186A1 - Ventilateur de ventilation pour conduit - Google Patents

Ventilateur de ventilation pour conduit Download PDF

Info

Publication number
WO2018179186A1
WO2018179186A1 PCT/JP2017/013078 JP2017013078W WO2018179186A1 WO 2018179186 A1 WO2018179186 A1 WO 2018179186A1 JP 2017013078 W JP2017013078 W JP 2017013078W WO 2018179186 A1 WO2018179186 A1 WO 2018179186A1
Authority
WO
WIPO (PCT)
Prior art keywords
duct
ventilation fan
shutter
connection member
shaft portion
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.)
Ceased
Application number
PCT/JP2017/013078
Other languages
English (en)
Japanese (ja)
Inventor
大輔 永▲崎▼
高瀬　毅
寿剛 竹居
雄大 小崎
友祐 澤野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to CN201780087540.XA priority Critical patent/CN110446895A/zh
Priority to JP2019508464A priority patent/JP6735906B2/ja
Priority to PCT/JP2017/013078 priority patent/WO2018179186A1/fr
Priority to CN202311025013.XA priority patent/CN117053321A/zh
Priority to TW106128394A priority patent/TWI666413B/zh
Publication of WO2018179186A1 publication Critical patent/WO2018179186A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F24F7/065—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 fan combined with single duct; mounting arrangements of a fan in a duct
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • 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
    • 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
    • F24F7/10—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 air supply, or exhaust, through perforated wall, floor or ceiling

Definitions

  • the present invention relates to a duct ventilation fan provided with a shutter that prevents outside air from entering when ventilation is stopped.
  • the ventilation fan for a duct disclosed in Patent Document 1 is a bent pipe immediately after the exhaust duct is connected to the duct connecting member when the shutter pops out from the duct connecting member when the shutter that prevents the outside wind from entering is opened. Then, the trouble that the shutter cannot be fully opened, or the shutter hits the exhaust duct and is damaged or deformed is improved.
  • This invention is made in view of the above, Comprising: It aims at obtaining the ventilation fan for ducts which reduced that a shutter remove
  • the present invention forms a ventilation fan body in which an air intake port and an exhaust port are formed, and an airflow that flows into the ventilation fan body from the intake port and flows out from the exhaust port.
  • a cylindrical duct connecting member that is detachably attached to the ventilation fan body and communicates the exhaust port and the duct, and is installed on the back of the ceiling with the air intake port on the indoor side. It is a duct ventilation fan that discharges air sucked from the duct to the duct via the duct connecting member, and includes a shutter that prevents the outside air from entering when the blower is stopped.
  • the shutter is pivotally supported inside the duct connection member by a shaft portion formed on the duct connection member and a bearing portion formed on the shutter.
  • the shaft portion has a cylindrical shape in which a notch along the axial direction is provided on the side surface on the outdoor side.
  • a protrusion having a convex curved surface is provided at the tip of the shaft portion, and the bottom surface of the protrusion protrudes from the portion where the notch is provided to the outdoor side.
  • the ventilating fan for duct according to the present invention has an effect that the shutter can be prevented from being detached from the duct connecting member when a load is applied to the shutter.
  • Sectional drawing which shows the attachment state of the ventilation fan for ducts concerning embodiment of this invention
  • the front view of the bearing part of the ventilation fan for ducts concerning an embodiment Enlarged view of
  • FIG. 1 is a cross-sectional view showing a mounted state of a duct ventilation fan according to an embodiment of the present invention.
  • FIG. 2 is a bottom view of the duct ventilation fan according to the embodiment with the decorative grille removed.
  • FIG. 3 is a bottom view of the duct ventilation fan according to the embodiment with the decorative grille removed and the terminal cover opened.
  • the ventilation fan 100 is installed in an opening provided in the ceiling, and the duct connection member 8 is inserted from the indoor side into the duct 14 that communicates the interior and the exterior to ventilate the indoor air.
  • the ventilation fan 100 includes a multi-blade fan 1 that is a blower that distributes air to be ventilated, and a fan casing 5 that houses the multi-blade fan 1.
  • the multi-blade blower 1 includes a motor 3 and a fan 4 attached to the shaft of the motor 3.
  • the ventilation fan 100 has a duct connecting member 8 provided on the side of the ventilation fan body 2 and extending from the side surface of the ventilation fan body 2 in a right angle direction and extending the discharge port 10 to a position communicating with the duct 14.
  • the ventilation fan 100 includes a decorative grill 12 that is a design part that prevents parts inside the ventilation fan body 2 including the fan casing 5 from being seen from the room.
  • the decorative grill 12 includes a spring 13 for attaching the main body, and is fixed to the ventilation fan main body 2 by hooking the spring 13 on a spring fixing portion 7 provided in the fan casing 5.
  • the duct 14 extends to the outside and is connected to a hood installed on the outer wall of the building, forming a ventilation air passage for ventilating the air in the building.
  • the ventilation fan body 2 has a box shape with an open bottom surface, and a motor 3 is installed on the top surface.
  • the lower surface of the ventilation fan body 2 serves as an intake port for taking in air from the room.
  • An exhaust port 2 b is formed on one side of the ventilation fan body 2.
  • a duct connection member 8 is connected to the exhaust port 2b.
  • the outer diameter of the duct connecting member 8 gradually decreases toward the side where the duct 14 is connected, and the duct connecting member 8 has a stepped shape.
  • the duct connecting member 8 can be connected to a plurality of ducts 14 having different inner diameters. Further, since the duct connecting member 8 has a step, it is easy to perform the operation of winding taping when sealing the joint between the duct connecting member 8 and the duct 14.
  • the fan casing 5 is provided with a resin terminal cover 11 that can be opened and closed.
  • the resin terminal cover 11 covers the electric wire connecting device 20 to which an external power supply electric wire can be connected.
  • the wire connection device 20 and the motor 3 are electrically connected by an unillustrated internal wire, and electricity applied by an external power supply wire flows from the internal wire to the motor 3 through the terminal block.
  • electricity applied by an external power supply wire flows from the internal wire to the motor 3 through the terminal block.
  • the fan casing 5 houses the multi-blade fan 1 and has a lower surface opened to form a suction port 6.
  • the air sucked into the fan casing 5 from the suction port 6 is sent to the exhaust port 2b along the inner wall of the fan casing 5 by the multiblade blower 1, and is exhausted to the outside through the duct connecting member 8 and the duct 14.
  • FIG. 4 is a diagram illustrating a state in which the duct connecting member of the ventilation fan for a duct according to the embodiment is viewed from the outdoor side.
  • FIG. 5 is a cross-sectional view of the duct connecting member of the ventilation fan for a duct according to the embodiment, and shows a cross section taken along the line V-V in FIG. 4.
  • 6 is a cross-sectional view of a duct connecting member of the ventilation fan for a duct according to the embodiment, and shows a cross section taken along the line VI-VI in FIG.
  • FIG. 7 is a cross-sectional view of the duct connecting member of the duct ventilation fan according to the embodiment, and shows a cross section taken along line VI-VI in FIG. 4 with the shutter 9 closed.
  • FIG. 4 shows the duct connecting member 8 with the shutter 9 opened.
  • the duct connecting member 8 is provided with a rotation stopper 21 that keeps the opening angle of the shutter 9 at a set angle and a shutter stopper 22 that contacts the shutter 9 in the closed state.
  • the shutter 9 rotates until it abuts against the rotation stopper 21 due to the wind pressure of the airflow generated by the multi-blade fan 1 to open the opening of the duct connection member 8.
  • the shutter 9 rotates by its own weight until it abuts against the shutter stop 22 and closes the opening of the duct connecting member 8.
  • the shaft portion 23 provided in the duct connection member 8 passes through the hole 28 of the bearing portion 26 provided in the shutter 9. Therefore, the shaft portion 23 is pivotally supported by the bearing portion 26, and the shutter 9 can be rotated by wind pressure.
  • the shaft portion 23 is integrated with the duct connecting member 8, but may be a separate part.
  • the shape of the duct connecting member 8 becomes complicated and the parts cost increases, but the work of assembling the shaft portion 23 and the duct connecting member 8 is not necessary. .
  • the shaft part 23 and the duct connecting member 8 are separate parts, the work of assembling the shaft part 23 and the duct connecting member 8 is required.
  • the shape of the duct connecting member 8 is simplified, the parts cost is reduced. Can be reduced.
  • FIG. 8 is a side view of the shaft portion of the duct ventilation fan according to the embodiment.
  • FIG. 9 is a front view of the shaft portion of the duct ventilation fan according to the embodiment.
  • the shape of the shaft portion 23 is a columnar shape in which a notch along the axial direction is provided on the side surface on the outdoor side.
  • the portion where the side surface of the shaft portion 23 is notched is a flat planar portion 25. Therefore, the cross section perpendicular to the axis of the shaft portion 23 is an arcuate shape surrounded by a dominant arc forming the cylindrical side surface portion and a chord forming the flat surface portion 25.
  • the tip 24 of the shaft portion 23 has a convex curved shape.
  • convex curved surfaces include, but are not limited to, a hemispherical surface, a partial spherical surface, a rotating paraboloid, and an elliptical paraboloid.
  • the bottom surface portion 24a of the protrusion of the tip 24 protrudes in a bowl shape from the flat surface portion 25 to the outdoor side. Accordingly, a step is formed at the boundary between the tip 24 and the flat portion 25, and the shaft portion 23 has a hook shape when viewed from a direction orthogonal to the axial direction and parallel to the flat portion 25.
  • the cross section of the shaft portion 23 is an arcuate shape surrounded by a dominant arc and a string, a cylindrical side surface portion exists on the side surface of the shaft portion 23 over a half circumference. Therefore, even if the flat portion 25 is provided, the rotating operation of the shaft portion 23 is not hindered.
  • FIG. 10 is a side view of the bearing portion of the duct ventilation fan according to the embodiment.
  • FIG. 11 is a front view of a bearing portion of the duct ventilation fan according to the embodiment.
  • the bearing portion 26 has a tongue-like shape that rises perpendicularly from the main surface of the shutter 9, and is formed with a hole 28 having a size that allows the tip 24 of the shaft portion 23 to pass therethrough.
  • FIG. 12 is an enlarged view of the shaft portion and the bearing portion of the duct ventilation fan according to the embodiment.
  • the direction of the load applied to the shutter 9 due to the disturbance is a direction from the outdoor side toward the indoor side, the bottom portion 24a is caught by the edge of the hole 28, so that the shaft portion Since 23 is prevented from coming out of the hole 28, it is reduced that the shutter 9 is detached from the duct connecting member 8 against the user's intention.
  • FIG. 13 is a diagram illustrating a modification of the shaft portion of the duct ventilation fan according to the embodiment. Since the parting line 30 is positioned in the direction of ⁇ 90 degrees with respect to the flat portion 25, the flat portion 29 is provided in the directions of +90 degrees and ⁇ 90 degrees with respect to the flat portion 25. By providing the flat portion 29, the shutter 9 can rotate without resistance by wind pressure even if there is a disturbance such as a burr in the parting line 30 or a minute displacement.
  • the shaft portion 23 is provided in the duct connecting member 8, but the shaft portion may be provided in the shutter 9 and the bearing portion may be provided in the duct connecting member 8.
  • the shaft 9 is provided on the shutter 9, the shaft may be integrated with the shutter 9 or may be a separate part.
  • the shaft portion is formed integrally with the shutter 9, the shape of the shutter 9 is complicated and the parts cost increases, but the work of assembling the shaft portion and the shutter 9 is not necessary.
  • the shaft portion and the shutter 9 are separate components, an operation of assembling the shaft portion and the shutter 9 is required, but the shape of the shutter 9 is simplified, so that the component cost can be reduced.
  • the duct ventilation fan includes the multi-blade fan 1 that is a centrifugal fan, but the duct ventilation fan may be configured using an axial fan. Moreover, it is also possible to apply to the duct ventilation fan which comprises a ventilation system member in combination with an air conditioner.
  • the flat surface portion 25 is formed on the side surface on the outdoor side of the shaft portion 23.
  • a notch is formed on the side surface on the outdoor side of the shaft portion 23 so that the tip 24 has a flange. It only has to be in the shape. That is, the outdoor side surface of the shaft portion 23 may not be planar.
  • the configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.
  • 1 multi-blade blower 2 ventilation fan body, 2b exhaust port, 3 motor, 4 fan, 5 fan casing, 6 suction port, 7 spring fixing part, 8 duct connection member, 9 shutter, 10 discharge port, 11 resin terminal cover, 12 makeup grille, 13 spring, 14 duct, 20 wire connection device, 21 rotation stop, 22 shutter stop, 23 shaft part, 24 tip, 24a bottom part, 25, 29 flat part, 26 bearing part, 30 parting line.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Duct Arrangements (AREA)

Abstract

L'invention concerne un ventilateur de ventilation pour un conduit comprenant : un corps de ventilateur de ventilation dans lequel sont formées une ouverture d'admission d'air et une ouverture d'évacuation d'air ; une soufflerie destinée à produire un flux d'air qui s'écoule depuis l'ouverture d'admission d'air dans le corps de ventilateur de ventilation et s'écoule hors de l'ouverture d'évacuation d'air ; et un élément de raccordement de conduit (8) ayant une forme cylindrique, l'élément de raccordement de conduit (8) étant monté de manière amovible sur le corps de ventilateur de ventilation et réalisant la communication entre l'ouverture d'évacuation d'air et un conduit. Le ventilateur de ventilation pour un conduit est installé dans un espace sous-toit avec l'ouverture d'admission d'air faisant face au côté intérieur de la pièce, et l'air aspiré depuis l'intérieur de la pièce à travers l'ouverture d'admission d'air est évacué dans le conduit à travers l'élément de raccordement de conduit (8). Le ventilateur de ventilation pour un conduit est pourvu d'un obturateur (9) servant à empêcher l'entrée d'air extérieur lorsque la soufflerie est arrêtée. L'obturateur (9) est monté à rotation à l'intérieur de l'élément de raccordement de conduit (8) par une section d'arbre (23) formée sur l'élément de raccordement de conduit (8) et par une section de palier (26) formée sur l'obturateur. La section d'arbre (23) présente la forme d'une colonne circulaire et comporte une découpe s'étendant dans le sens axial formée dans la surface latérale côté extérieur de la pièce de la section d'arbre (23). Une partie saillante de forme convexe se trouve à l'extrémité avant de la section d'arbre (23), et la surface inférieure de la partie saillante fait saillie vers le côté extérieur de la pièce depuis la portion où se trouve la découpe.
PCT/JP2017/013078 2017-03-29 2017-03-29 Ventilateur de ventilation pour conduit Ceased WO2018179186A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201780087540.XA CN110446895A (zh) 2017-03-29 2017-03-29 通道用换气扇
JP2019508464A JP6735906B2 (ja) 2017-03-29 2017-03-29 ダクト用換気扇
PCT/JP2017/013078 WO2018179186A1 (fr) 2017-03-29 2017-03-29 Ventilateur de ventilation pour conduit
CN202311025013.XA CN117053321A (zh) 2017-03-29 2017-03-29 通道用换气扇
TW106128394A TWI666413B (zh) 2017-03-29 2017-08-22 管道用換氣扇

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/013078 WO2018179186A1 (fr) 2017-03-29 2017-03-29 Ventilateur de ventilation pour conduit

Publications (1)

Publication Number Publication Date
WO2018179186A1 true WO2018179186A1 (fr) 2018-10-04

Family

ID=63677655

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/013078 Ceased WO2018179186A1 (fr) 2017-03-29 2017-03-29 Ventilateur de ventilation pour conduit

Country Status (4)

Country Link
JP (1) JP6735906B2 (fr)
CN (2) CN110446895A (fr)
TW (1) TWI666413B (fr)
WO (1) WO2018179186A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021188775A (ja) * 2020-05-26 2021-12-13 三菱電機株式会社 換気装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0418249U (fr) * 1990-06-04 1992-02-14
JPH07318140A (ja) * 1994-05-26 1995-12-08 Toshiba Corp シャッタ装置
JPH09137987A (ja) * 1995-11-14 1997-05-27 Toshiba Corp 通風口のシャッタ装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2506894B2 (ja) * 1988-02-16 1996-06-12 松下精工株式会社 ダクト用換気扇
JP2000289431A (ja) * 1999-04-09 2000-10-17 Mitsubishi Heavy Ind Ltd ダンパ取付構造及びダンパ取付方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0418249U (fr) * 1990-06-04 1992-02-14
JPH07318140A (ja) * 1994-05-26 1995-12-08 Toshiba Corp シャッタ装置
JPH09137987A (ja) * 1995-11-14 1997-05-27 Toshiba Corp 通風口のシャッタ装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021188775A (ja) * 2020-05-26 2021-12-13 三菱電機株式会社 換気装置
JP7353237B2 (ja) 2020-05-26 2023-09-29 三菱電機株式会社 換気装置

Also Published As

Publication number Publication date
TW201837393A (zh) 2018-10-16
CN110446895A (zh) 2019-11-12
JPWO2018179186A1 (ja) 2019-07-11
JP6735906B2 (ja) 2020-08-05
TWI666413B (zh) 2019-07-21
CN117053321A (zh) 2023-11-14

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