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WO2021157070A1 - Soufflante et dispositif de ventilation - Google Patents

Soufflante et dispositif de ventilation Download PDF

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Publication number
WO2021157070A1
WO2021157070A1 PCT/JP2020/004885 JP2020004885W WO2021157070A1 WO 2021157070 A1 WO2021157070 A1 WO 2021157070A1 JP 2020004885 W JP2020004885 W JP 2020004885W WO 2021157070 A1 WO2021157070 A1 WO 2021157070A1
Authority
WO
WIPO (PCT)
Prior art keywords
ground terminal
blower
ground
screw
mounting surface
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/JP2020/004885
Other languages
English (en)
Japanese (ja)
Inventor
大輔 永▲崎▼
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 PCT/JP2020/004885 priority Critical patent/WO2021157070A1/fr
Priority to JP2021575566A priority patent/JP7380717B2/ja
Publication of WO2021157070A1 publication Critical patent/WO2021157070A1/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
    • F24F7/10—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

  • This disclosure relates to blowers and ventilators.
  • Patent Document 1 describes a ventilation device equipped with a blower that is attached to a ceiling structure and exhausts the sucked indoor air to the outside through a duct. Further, Reference Document 1 describes that an electric component such as a connection terminal is stored in a storage case made of a steel plate, and a ground terminal is attached to a ground terminal attachment portion provided in the storage case.
  • Patent Document 1 has a problem that workability related to attachment and / or removal of the ground terminal of the blower is not considered at all.
  • the ground screw for fixing the ground terminal is often formed from a non-magnetic copper alloy as a raw material. Therefore, there is no magnetism with a tool such as a screwdriver. Therefore, when the ground terminal of the blower is attached to and / or removed from the storage case, the ground terminal and / or the ground screw may be dropped. In addition, there is a possibility that the ground terminal and / or the ground screw that has fallen may be lost or the house may be damaged.
  • This disclosure is made to solve the above-mentioned problems, and aims to improve workability related to attachment and / or removal of the ground terminal of the blower.
  • the possibility of dropping the ground terminal and / or the ground screw is suppressed, and the dropped ground terminal and / or the ground screw is lost or the house is damaged.
  • the purpose is to suppress it.
  • the blower according to this disclosure forms an air flow.
  • the blower is a device that locks the ground terminal of the blower, the ground terminal mounting surface that electrically connects to the ground terminal, the ground screw that tightens the ground terminal to the ground terminal mounting surface, and the ground terminal to the ground terminal mounting surface. It has a stop.
  • the blower according to the present disclosure has an effect that the workability related to the attachment and / or removal of the ground terminal can be improved.
  • the possibility of dropping the ground terminal and / or the ground screw is suppressed, and the loss of the dropped ground terminal and / or the ground screw and the damage to the house are suppressed. It has the effect of being able to do it.
  • FIG. It is the figure which showed the state which the terminal cover of a ventilator was closed. It is the figure which showed the state which opened the terminal cover of a ventilator. It is a figure which showed the rear perspective view of the ventilation system. It is a figure which showed the earth terminal which is not fastened with the earth screw, and the electric wire connection device. It is a figure which showed the earth terminal and the electric wire connection device which were fastened with the earth screw. It is sectional drawing which shows the attachment state of the ground terminal. It is a figure which shows the state which attached the external power supply electric wire and the ground wire.
  • FIG. 1 is a cross-sectional view showing a cross section of the installed state of the ventilation device according to the first embodiment.
  • the ventilation device 100 is attached to the box-shaped main body 2, the blower 1 assembled in the main body 2, the duct connection port 8 attached to the exhaust port on one side of the main body 2, and the lower surface of the main body 2. It is composed of a decorative grill 12.
  • the duct connection port 8 is connected to the duct 14 extending to the outside.
  • the duct 14 is connected to a hood or the like provided on the outdoor outer wall of the building to form a ventilation air passage for ventilating the air in the house.
  • the duct connection port 8 has a stepped outer shape having a different diameter. Since the outer shape of the duct connection port 8 is stepped with different diameters, it is possible to connect to ducts 14 having different diameters, and workability such as taping is improved.
  • a shutter 9 that opens and closes by wind pressure is provided in the duct connection port 8. The shutter 9 is opened by wind pressure when the ventilation device 100 is operated, and the duct connection port 8 is closed by the weight of the shutter 9 when the ventilation device 100 is stopped. By providing the shutter 9 in the duct connection port 8, it is possible to prevent the outside wind from the outside from entering the room when the ventilation device 100 is stopped.
  • the lower surface of the main body 2 is open so that maintenance such as construction, inspection, and cleaning can be performed from the indoor side.
  • the opening on the lower surface of the main body 2 is provided with a main body flange 2a bent from the side wall of the main body 2 to the periphery.
  • the main body 2 is embedded in a main body embedding hole 26 provided in the ceiling 25, and is fixed to the ceiling 25 through a screw hole or the like provided in the main body flange 2a.
  • the blower 1 assembled in the main body 2 is composed of a motor 3 and a fan 4 which is plugged and coupled to the drive shaft of the motor 3.
  • the motor 3 is fixed to the top surface 28 on the upper surface of the main body 2. Further, the motor 3 forms an air flow from the opening on the lower surface of the main body 2 toward the exhaust port 10 by rotating the fan 4.
  • the fan 4 may have any shape, for example, a sirocco fan or a propeller fan, as long as it can form an air flow.
  • the fan casing 6 of the blower 1 is fixed to the top surface 28 and has a suction port 5 on the lower surface.
  • the suction port 5 of the fan casing 6 is located at the opening on the lower surface of the main body 2.
  • the air sucked into the fan casing 6 from the suction port 5 is sent to the exhaust port 10 by the blower 1, and is exhausted to the outside through the duct connection port 8 and the duct 14.
  • a spring fixing portion 7 for attaching the decorative grill 12 is formed on the opening side of the fan casing 6. That is, the blower 1 is a ventilation drive body that circulates the ventilated air, and forms an air flow that causes the air that has flowed into the main body 2 from the suction port 5 to flow out from the exhaust port 10.
  • the decorative grill 12 is formed with a suction port for sucking indoor air into the main body 2.
  • the decorative grill 12 is detachably provided with respect to the ventilation device 100 so that it can be easily removed.
  • the decorative grill 12 is attached to the main body 2 by hooking the spring 13 on the spring fixing portion 7 provided on the fan casing 6.
  • the spring 13 is attached to the spring fixing component 21 of the decorative grill 12.
  • the decorative grill 12 is a design part so that the internal parts such as the fan casing 6 are not visible and the appearance is not deteriorated.
  • FIG. 2 is a diagram showing a state in which the terminal cover of the ventilation device is closed.
  • a space surrounded by a protective wall 18 is formed between the fan casing 6 and the main body 2.
  • the rotating shaft 16 provided at the end of the terminal cover 11 is inserted into the rotating hole 15 provided in the fan casing 6.
  • the terminal cover 11 is rotatably provided about the rotation shaft 16.
  • the terminal cover 11 is locked by a locking projection 19 provided on the protective wall 18.
  • the terminal cover 11 maintains a closed state of the space surrounded by the protective wall 18 by the locking projection 19. When the terminal cover 11 is maintained in the closed state, the degree of sealing of the space surrounded by the protective wall 18 is improved.
  • the terminal cover 11 may be provided with a finger hooking portion 17 for hooking a finger when opening and closing to facilitate opening and closing.
  • FIG. 3 is a diagram showing a state in which the terminal cover of the ventilation device is opened.
  • the electric wire connecting device 20 is housed in the space surrounded by the protective wall 18. By opening the terminal cover 11 of the electric wire connecting device 20, the electric wire connecting device 20 can be easily accessed and attached / detached from the indoor side.
  • FIG. 4 is a view showing a rear perspective view of the ventilation device.
  • a bush 35 is provided on the top surface 28 of the main body 2 at a position corresponding to the space surrounded by the protective wall 18.
  • the bush 35 is an opening for drawing the external power supply wire 24 from the outside into the main body 2.
  • the external power electric wire 24 drawn from the bush 35 into the main body 2 is electrically connected to the electric wire connecting device 20.
  • the electric wire connecting device 20 is electrically connected to the motor 3 of the blower 1 by a motor electric wire (not shown).
  • the electric power supplied through the external power supply electric wire 24 is supplied from the motor electric wire to the motor 3 via the electric wire connecting device 20, so that the electric energy is converted into the rotational motion of the shaft of the motor 3.
  • the fan 4 is rotated by the rotational movement of the motor 3, and an air flow is formed in the air passage formed by the fan casing 6.
  • FIG. 5 is a diagram showing a ground terminal of a blower and an electric wire connecting device that are not fastened with a ground screw.
  • FIG. 6 is a diagram showing a ground terminal of a blower fastened with a ground screw and an electric wire connecting device.
  • the electric wire connecting device 20 is attached to a terminal mounting plate 36 made of a steel plate, and is connected to an external power electric wire 24 drawn from a bush 35 provided on the top surface 28 of the main body 2.
  • an electric component such as a capacitor or a voltage dividing capacitor is attached to the terminal mounting plate 36.
  • the terminal mounting plate 36 is covered with a cover 37.
  • the terminal mounting plate 36 and the cover 37 form a storage case 38.
  • the entire storage case 38 is surrounded by a protective wall 18.
  • the terminal mounting plate 36 has a ground terminal mounting surface 29.
  • the terminal mounting plate 36 is electrically connected to the ground terminal 30 of the blower.
  • the ground terminal mounting surface 29 is provided with an opening 39 into which the ground screw 31 is inserted.
  • the ground screw 31 is tightened to the ground terminal mounting surface 29 in a state of being inserted into the opening of the ground terminal 30.
  • the earth screw 31 is formed, for example, from a copper alloy having no magnetism as a raw material.
  • a locking portion 32 is provided on the ground terminal mounting surface 29. The locking portion 32 locks the ground terminal 30 that is not tightened by the ground screw 31 to the ground terminal mounting surface 29. Further, the locking portion 32 may temporarily fix (temporarily fasten) the ground terminal 30 that is not tightened by the ground screw 31 to the ground terminal mounting surface 29.
  • the locking portion 32 may lock the ground terminal 30 which is not tightened by the ground screw 31 at the mounting position of the ground terminal mounting surface 29.
  • the mounting position is a position where the opening 39 of the ground terminal mounting surface 29 and the opening of the ground terminal 30 coincide with each other. With such a configuration, even when the main body 2 is installed on the ceiling 25 or a wall, the locking portion 32 can attach the ground terminal 30 which is not tightened by the ground screw 31 to the ground terminal mounting surface. By locking at the mounting position of 29, it is possible to prevent the ground terminal 30 from falling.
  • FIG. 7 is a cross-sectional view showing an attached state of the ground terminal.
  • One end of the locking portion 32 is open, and the other end is provided on the ground terminal mounting surface 29 via the rising portion 34.
  • One end of the locking portion 32 is provided so as to extend in a direction opposite to the rotation direction in which the ground screw 31 is tightened.
  • the rising portion 34 which is the other end of the locking portion 32, is provided at a position that restricts the rotation of the ground terminal 30 in the rotation direction in which the ground screw 31 is tightened.
  • the workability related to the attachment and / or removal of the ground terminal 30 can be improved.
  • the direction in which the locking portion 32 holds the ground terminal 30 in the direction opposite to the rotation direction in which the ground screw 31 is tightened it is possible not only to suppress the fall of the ground terminal 30 but also to suppress the rotation. It will be possible.
  • the ground terminal mounting surface 29 is provided with a protrusion 33 at a position that restricts the rotation of the ground terminal 30 in the direction opposite to the rotation direction in which the ground screw 31 is tightened.
  • the protrusion 33 is provided on the side where the rising portion 34 of the locking portion 32 is not provided, that is, on the ground terminal mounting surface 29 on the open one end side of the locking portion 32. In this way, by providing the convex protrusion 33 on the ground terminal mounting surface 29 side on the open side of the locking portion 32, it is possible to prevent the ground terminal 30 from coming off.
  • FIG. 8 is a diagram showing a state in which the external power supply wire and the ground wire are attached.
  • the ground terminal 30 of the blower 1 is attached to the ventilation device 100.
  • the construction procedure of the ground terminal 30 is in the following order. First, the ground screw 31 is removed with a screwdriver, and then the ground terminal 30 locked to the locking portion 32 is removed from the locking portion 32. Next, the ground wire 23 is crimped to the ground terminal 30 with a crimping tool. Then, the ground terminal 30 integrated with the ground wire 23 is locked to the ground terminal mounting surface 29 by the locking portion 32. The ground terminal 30 locked by the locking portion 32 is fixed with the ground screw 31.
  • the ventilator 100 provided with the blower 1 according to the embodiment of the present disclosure can be attached by, for example, using a screwdriver for the earth screw 31 by locking the earth terminal 30 to the locking portion 32 of the earth terminal attachment surface 29.
  • a screwdriver for the earth screw 31 by locking the earth terminal 30 to the locking portion 32 of the earth terminal attachment surface 29.
  • the ventilation device 100 provided with the blower 1 according to the embodiment of the present disclosure can improve the workability related to the attachment and / or removal of the ground terminal 30. As a result, it is possible to suppress the possibility that the ground terminal 30 and / or the ground screw 31 is dropped and the ground terminal 30 and / or the ground screw 31 is lost or the house is damaged.
  • the configuration shown in the above-described embodiment shows an example of the contents of the present disclosure, can be combined with another known technique, and is one of the configurations as long as it does not deviate from the gist of the present disclosure. It is also possible to omit or change the part.
  • the shape of the locking portion 32 has been described as holding the ground terminal 30, but at least the ground terminal 30 may be temporarily fixed (temporarily fastened).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Abstract

La présente invention concerne un ventilateur (1) qui génère un flux d'air. Ledit ventilateur comprend : une borne de terre (30) de la soufflante (1) ; une surface de fixation (29) de la borne de terre qui se connecte électriquement à la borne de terre (30) ; une vis de terre (31) pour fixer la borne de terre (30) à la surface de fixation (29) de la borne de terre ; et une partie de verrouillage (32) pour verrouiller la borne de terre (30) à la surface de fixation (29) de la borne de terre. La partie de verrouillage (32) comporte une extrémité ouverte qui s'étend vers la direction opposée à la direction de rotation dans laquelle la vis de terre (31) est fixée, et l'autre extrémité est disposée sur la surface de fixation (29) de la borne de terre par l'intermédiaire d'une partie montante (34). La partie montante (34) limite la rotation de la borne de terre (30) dans la direction de rotation dans laquelle la vis de terre (31) est fixée. La surface de fixation de la borne de terre (29) est pourvue d'une saillie pour limiter la rotation de la borne de terre (30) dans la direction opposée à la direction de rotation dans laquelle la vis de terre (31) est fixée.
PCT/JP2020/004885 2020-02-07 2020-02-07 Soufflante et dispositif de ventilation Ceased WO2021157070A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2020/004885 WO2021157070A1 (fr) 2020-02-07 2020-02-07 Soufflante et dispositif de ventilation
JP2021575566A JP7380717B2 (ja) 2020-02-07 2020-02-07 送風機及び換気装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/004885 WO2021157070A1 (fr) 2020-02-07 2020-02-07 Soufflante et dispositif de ventilation

Publications (1)

Publication Number Publication Date
WO2021157070A1 true WO2021157070A1 (fr) 2021-08-12

Family

ID=77200455

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/004885 Ceased WO2021157070A1 (fr) 2020-02-07 2020-02-07 Soufflante et dispositif de ventilation

Country Status (2)

Country Link
JP (1) JP7380717B2 (fr)
WO (1) WO2021157070A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7592051B2 (ja) 2022-07-29 2024-11-29 三菱電機株式会社 換気扇

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07263043A (ja) * 1994-03-18 1995-10-13 Sumitomo Wiring Syst Ltd アース端子の共締め構造
US20080194126A1 (en) * 2007-02-12 2008-08-14 Ford Global Technologies, Llc System for fastening components
JP4566665B2 (ja) * 2004-09-13 2010-10-20 三菱電機株式会社 換気装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0883632A (ja) * 1994-09-13 1996-03-26 Sumitomo Wiring Syst Ltd 端子金具のバスバーへの取付構造

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07263043A (ja) * 1994-03-18 1995-10-13 Sumitomo Wiring Syst Ltd アース端子の共締め構造
JP4566665B2 (ja) * 2004-09-13 2010-10-20 三菱電機株式会社 換気装置
US20080194126A1 (en) * 2007-02-12 2008-08-14 Ford Global Technologies, Llc System for fastening components

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7592051B2 (ja) 2022-07-29 2024-11-29 三菱電機株式会社 換気扇

Also Published As

Publication number Publication date
JP7380717B2 (ja) 2023-11-15
JPWO2021157070A1 (fr) 2021-08-12

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