WO2018055670A1 - 換気送風機 - Google Patents

換気送風機 Download PDF

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Publication number
WO2018055670A1
WO2018055670A1 PCT/JP2016/077672 JP2016077672W WO2018055670A1 WO 2018055670 A1 WO2018055670 A1 WO 2018055670A1 JP 2016077672 W JP2016077672 W JP 2016077672W WO 2018055670 A1 WO2018055670 A1 WO 2018055670A1
Authority
WO
WIPO (PCT)
Prior art keywords
main body
capacitor
capacitor box
body housing
box
Prior art date
Application number
PCT/JP2016/077672
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
馨 中谷
福太郎 長田
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2018540514A priority Critical patent/JP6676179B2/ja
Priority to NZ750394A priority patent/NZ750394A/en
Priority to AU2016423907A priority patent/AU2016423907B2/en
Priority to PCT/JP2016/077672 priority patent/WO2018055670A1/ja
Priority to CN201680089196.3A priority patent/CN109690199B/zh
Publication of WO2018055670A1 publication Critical patent/WO2018055670A1/ja

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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
    • F24F7/10—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 ventilation blower that exchanges indoor air through a duct that communicates indoors and a duct that communicates outdoors.
  • a capacitor for controlling an electric motor provided in a ventilation blower is housed in a resin case and further protected by a metal cover in order to prevent fire spread due to ignition at the time of a short circuit.
  • a method of protecting by covering the entire circumference of the capacitor using a metal case and a metal cover is a method of protecting by covering the entire circumference of the capacitor using a metal case and a metal cover.
  • a plurality of capacitors for controlling the motor are provided. It is troublesome to attach a protective case and cover to each of a plurality of capacitors for controlling an electric motor, and the number of parts increases, leading to deterioration in productivity. For this reason, there is a demand for a ventilating blower that achieves both safety when a capacitor is ignited and high productivity.
  • the present invention has been made in view of the above, and an object of the present invention is to obtain a ventilation fan that can suppress the spread of fire when a capacitor for controlling an electric motor ignites and has high productivity.
  • the present invention includes a main body housing provided with an intake port and an exhaust port, and a multiblade centrifugal blade removably attached to a rotating shaft of the motor and the motor.
  • a centrifugal blower that is installed inside the main body housing and forms an airflow that flows into the main body housing from the air inlet and out of the main body housing, and has a bottom that is open on one side It is box-shaped, contains at least one capacitor for controlling the motor, and includes a first capacitor box and a second capacitor box made of non-combustible material.
  • the first capacitor box includes a first flat portion projecting around the open surface, and is externally attached to the main body casing.
  • the second capacitor box includes a second flat portion projecting around the open surface, and is embedded in the main body housing. The open surface of the first capacitor box is closed by the second plane portion, and the open surface of the second capacitor box is closed by the first plane portion.
  • the ventilating blower according to the present invention has the effect that it is possible to suppress the spread of fire when the capacitor for controlling the electric motor ignites and the productivity is high.
  • FIG. 1 The perspective view which looked at the ventilation fan which concerns on Embodiment 1 of this invention from the electric motor side Plan view of ventilation fan according to Embodiment 1
  • FIG. 1 The figure which shows the storage method of the capacitor
  • FIG. 1 The perspective view of the part of the capacitor
  • FIG. Sectional drawing of the part of the capacitor
  • FIG. Sectional drawing of the capacitor
  • FIG. 1 is a perspective view of a ventilation blower according to Embodiment 1 of the present invention as viewed from the electric motor side.
  • FIG. 2 is a plan view of the ventilation fan according to the first embodiment.
  • FIG. 2 shows the inside through the top surface of the main body housing 2 through visualization.
  • the ventilation blower 1 according to Embodiment 1 has a main body housing 2 that forms an exterior and supports the entire blower.
  • the main body housing 2 has a rectangular parallelepiped shape, and an intake port 3 is provided on one of two side surfaces opposed in the longitudinal direction, and an exhaust port 4 is provided on the other side.
  • the intake port 3 is provided with a duct connection port 5a
  • the exhaust port 4 is provided with a duct connection port 5b.
  • a duct 6a is connected to the duct connection port 5a.
  • a duct 6b is connected to the duct connection port 5b.
  • ceiling mounts 7 are provided on the side surface of the main body housing 2.
  • the ventilation blower 1 is installed in a space such as the back of the ceiling of the building, sucks indoor air through the duct 6a, and exhausts it to the outside through the duct 6b. And ventilate. That is, the ventilation blower 1 forms an air flow between the indoor air and the outdoor air, and exchanges the indoor air through the duct 6a leading to the room and the duct 6b leading to the outdoors.
  • a centrifugal blower 20 is installed inside the main body casing 2.
  • the centrifugal blower 20 includes an electric motor 22 mounted in the main body housing 2 by an electric motor mounting leg 21, and a double suction type multi-blade centrifugal blade 23 that is detachably mounted on the rotating shaft of the electric motor 22.
  • the centrifugal blower 20 is installed inside the main body housing 2 and forms an airflow that flows into the main body housing 2 from the air inlet 3 and flows out of the main body housing 2 from the exhaust port 4.
  • the centrifugal blower 20 is incorporated at a position closer to the exhaust port 4 than the center in the longitudinal direction of the main body housing 2 so that the rotating shaft of the electric motor 22 is horizontal or vertical.
  • the multiblade centrifugal blade 23 is located on the opposite side of the electric motor 22 and is surrounded by an orifice 24 having a suction port 30a and an orifice 25 located on the electric motor 22 side and having a suction port 30b. It is.
  • the orifices 24 and 25 form a scroll casing having a discharge port 31.
  • the electric motor 22 is located inside the suction port 30 b, and the suction port 30 a and the suction port 30 b are opposed to the rotation direction of the motor 22.
  • the scroll casing guides indoor air to the multiblade centrifugal blade 23.
  • the air taken into the ventilation fan 1 from the air inlet 3 through the duct 6 a by the rotation of the double suction type multi-blade centrifugal blade 23 is once divided into the electric motor 22 side and the opposite side of the electric motor 22. .
  • the divided air passes through the air passages 40 a and 40 b formed in the main body housing 2, enters the centrifugal blower 20 through the suction ports 30 a and 30 b, and merges.
  • the merged air is discharged from the discharge port 31 and discharged from the duct 6b to the outside through the exhaust port 4.
  • the ventilation blower 1 has a linear layout of the path from intake to exhaust.
  • FIG. 3 and 4 are diagrams showing a method for housing a capacitor of the ventilation fan according to Embodiment 1.
  • FIG. FIG. 5 is a perspective view of a portion of the capacitor housing portion of the ventilation fan according to Embodiment 1.
  • FIG. FIG. 6 is a cross-sectional view of a portion of the capacitor housing portion of the ventilation fan according to the first embodiment.
  • FIG. 7 is an exploded perspective view of the capacitor housing portion of the ventilation fan according to Embodiment 1.
  • the second capacitor box 61 has a bottomed box shape in which the top surface is opened to accommodate the control capacitor 63a for the electric motor 22, and is a second flat portion projecting around the open surface.
  • a flat surface portion 64a is provided.
  • the first capacitor box 62 has a bottomed box shape with the top surface opened to accommodate the control capacitor 63b of the electric motor 22, and is a first flat portion projecting around the open surface.
  • a flat surface portion 64b is provided.
  • the first capacitor box 62 and the second capacitor box 61 are made of incombustible material. Examples of non-combustible materials can include metals and ceramics.
  • the second capacitor box 61 is embedded and installed in the side surface of the main body housing 2.
  • the first capacitor box 62 is externally attached to the side surface of the main body housing 2.
  • the first capacitor box 62 and the second capacitor box 61 are fitted with the flat portions 64 a and 64 b so as to cover the open surface in order to prevent the spread of the fire when the capacitor is short-circuited.
  • the capacitor housing portion 60 is formed by wearing.
  • the open surface of the second capacitor box 61 is closed by the flat surface portion 64b of the first capacitor box 62, and the open surface of the first capacitor box 62 is the second capacitor.
  • the box 61 is closed by a flat portion 64a.
  • the ventilation blower 1 according to Embodiment 1 does not need to be assembled with a case or cover made of a noncombustible material that covers the periphery of the capacitors 63a and 63b. Therefore, when the capacitor for controlling the electric motor 22 ignites, it is possible to suppress the spread of fire and the productivity is high. Moreover, the ventilation blower 1 which concerns on Embodiment 1 can implement
  • FIG. 8 is a cross-sectional view of the condenser housing portion of the ventilation fan according to the modification of the first embodiment.
  • the first capacitor box 62 that houses the control capacitor 63b of the electric motor 22 is a bottomed box shape with one surface open, and includes a flat surface portion 64b that is a first flat surface portion protruding around the open surface. ing.
  • the second capacitor box 61 that houses the control capacitor 63a of the electric motor 22 has a bottomed box shape with one side opened.
  • the second capacitor box 61 is made of a noncombustible material and is embedded in the main body housing 2.
  • the first capacitor box 62 is made of a non-combustible material and is externally attached to the main body housing 2.
  • the open surface of the first capacitor box 62 is closed by the main body housing 2, and the open surface of the second capacitor box 61 is closed by the flat portion 64b. Since the main body housing 2 forms a part of a cover made of non-combustible material and closes the open surface of the first capacitor box 62, the flat portion 64a is provided on the second capacitor box 61 that is embedded in the main body housing 2. There is no need to provide. Therefore, when a sheet metal material is applied to the non-combustible material, it is possible to reduce the cost by reducing the blank area of the sheet metal material and simplifying the mold.
  • the configuration in which the capacitor housing portion 60 is provided on the side surface of the main body housing 2 of the ventilation fan 1 has been described.
  • the position where the capacitor housing portion 60 is provided is limited to the side surface of the main body housing 2.
  • the same effect can be obtained even if the capacitor housing 60 is provided on the top surface of the main housing 2.
  • the capacitor storage unit 60 is provided on the side surface of the main body housing 2, the maintenance work becomes easier than when the capacitor storage unit 60 is provided on the top surface of the main body housing 2.
  • FIG. FIG. 9 is a cross-sectional view of the capacitor housing portion of the ventilation fan according to Embodiment 2 of the present invention.
  • the main body housing 2 is made of a noncombustible material.
  • the second capacitor box 61 embedded and installed in the main body housing 2 is provided with an elevation surface portion 65a that is a second elevation surface portion that rises vertically from the tip of the flat surface portion 64a. It has been.
  • the upright portion 65a is inserted into the first capacitor box 62 when the first capacitor box 62 is attached to the main body housing 2, and partitions the internal space of the first capacitor box 62 into two. It becomes a bulkhead.
  • the capacitor 63c and 63d are housed in the first capacitor box 62, the capacitor 63c and the capacitor 63d are separated from each other by the partition wall formed by the rising surface portion 65a.
  • the flat portion 64a does not exist between the capacitor 63d and the main body housing 2, but the entire circumference of the capacitor 63d is surrounded by the first capacitor box 62 made of incombustible material and the main body housing 2 made of incombustible material. In the event of a fire from the capacitors 63c and 63d, the spread of fire is prevented.
  • the ventilation blower according to the second embodiment can secure safety against the spread of fire when a capacitor is short-circuited without using components in addition to the first capacitor box 62 and the second capacitor box 61, and can reduce the number of components. Cost can be reduced by improving assembly.
  • FIG. 10 is a cross-sectional view of the capacitor housing portion of the ventilation fan according to Embodiment 3 of the present invention.
  • the first capacitor box 62 attached to the main body housing 2 is provided with an elevation surface portion 65 b that is a first elevation surface portion that rises vertically from the tip of the flat surface portion 64 b.
  • the elevation 65b is inserted into the second capacitor box 61 when the first capacitor box 62 is attached to the main body housing 2, and the partition wall dividing the internal space of the second capacitor box 61 into two. Make.
  • the capacitor 63e and the capacitor 63f are accommodated in the second capacitor box 61, the capacitor 63e and the capacitor 63f are separated from each other by the partition wall formed by the rising surface portion 65b. Therefore, it is possible to ensure safety against the spread of fire when the capacitor is short-circuited without using any components other than the first capacitor box 62 and the second capacitor box 61, and the cost can be reduced by reducing the number of components and improving the assembling property. It becomes possible.
  • FIG. 11 is a cross-sectional view of a capacitor housing part of a ventilation fan according to Embodiment 4 of the present invention.
  • the capacitor box 61 to be installed and embedded in the main body housing 2 has a convex portion 66 on the bottom surface, and the second capacitor box 61 provides a storage space for the capacitor.
  • I have two.
  • a capacitor 63e is stored in one of the storage spaces of the second capacitor box 61, and a capacitor 63f is stored in the other.
  • Providing the convex portions 66 on the bottom surface of the second capacitor box 61 prevents the positions of the capacitors 63e and 63f from shifting in the second capacitor box 61.
  • the capacitors 63e and 63f are entirely covered. Therefore, even if a fire breaks out from one of the capacitors 63e and 63f, since the fire spread is prevented in the second capacitor box 61, there is no need to use other components in addition to the first capacitor box 62 and the second capacitor box 61. It is possible to secure safety against the spread of fire when a capacitor is short-circuited, and it is possible to reduce costs by reducing the number of parts and improving assembly.
  • 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.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
PCT/JP2016/077672 2016-09-20 2016-09-20 換気送風機 WO2018055670A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2018540514A JP6676179B2 (ja) 2016-09-20 2016-09-20 換気送風機
NZ750394A NZ750394A (en) 2016-09-20 2016-09-20 Ventilation blower
AU2016423907A AU2016423907B2 (en) 2016-09-20 2016-09-20 Ventilation blower
PCT/JP2016/077672 WO2018055670A1 (ja) 2016-09-20 2016-09-20 換気送風機
CN201680089196.3A CN109690199B (zh) 2016-09-20 2016-09-20 换气鼓风机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/077672 WO2018055670A1 (ja) 2016-09-20 2016-09-20 換気送風機

Publications (1)

Publication Number Publication Date
WO2018055670A1 true WO2018055670A1 (ja) 2018-03-29

Family

ID=61690853

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/077672 WO2018055670A1 (ja) 2016-09-20 2016-09-20 換気送風機

Country Status (5)

Country Link
JP (1) JP6676179B2 (zh)
CN (1) CN109690199B (zh)
AU (1) AU2016423907B2 (zh)
NZ (1) NZ750394A (zh)
WO (1) WO2018055670A1 (zh)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08170848A (ja) * 1994-12-17 1996-07-02 Daikin Ind Ltd 熱交換換気装置の電装品取付構造
JPH08219521A (ja) * 1995-02-15 1996-08-30 Toshiba Corp 天井用換気扇

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050038710A (ko) * 2003-10-22 2005-04-29 삼성전자주식회사 송풍장치 및 이를 갖춘 공기조화기
JP2010159910A (ja) * 2009-01-08 2010-07-22 Sanyo Electric Co Ltd 天井埋込型空気調和装置
CN203010797U (zh) * 2012-12-10 2013-06-19 Tcl空调器(中山)有限公司 一种空调室外机防护盖
CN203912401U (zh) * 2014-05-09 2014-10-29 广东美的集团芜湖制冷设备有限公司 一种空调器室内机电控盒防火结构
CN104258526B (zh) * 2014-10-21 2016-11-30 重庆昆旺电子有限责任公司 家用充电防火防爆装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08170848A (ja) * 1994-12-17 1996-07-02 Daikin Ind Ltd 熱交換換気装置の電装品取付構造
JPH08219521A (ja) * 1995-02-15 1996-08-30 Toshiba Corp 天井用換気扇

Also Published As

Publication number Publication date
CN109690199A (zh) 2019-04-26
NZ750394A (en) 2020-01-31
AU2016423907B2 (en) 2019-12-05
JPWO2018055670A1 (ja) 2019-02-21
JP6676179B2 (ja) 2020-04-08
CN109690199B (zh) 2020-11-06
AU2016423907A1 (en) 2019-02-07

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