WO2019162986A1 - Duct ventilator - Google Patents

Duct ventilator Download PDF

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Publication number
WO2019162986A1
WO2019162986A1 PCT/JP2018/005865 JP2018005865W WO2019162986A1 WO 2019162986 A1 WO2019162986 A1 WO 2019162986A1 JP 2018005865 W JP2018005865 W JP 2018005865W WO 2019162986 A1 WO2019162986 A1 WO 2019162986A1
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WO
WIPO (PCT)
Prior art keywords
ventilation fan
power supply
mounting plate
motor mounting
duct
Prior art date
Application number
PCT/JP2018/005865
Other languages
French (fr)
Japanese (ja)
Inventor
大輔 永▲崎▼
雄大 小崎
友祐 澤野
高瀬　毅
裕磨 角田
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 CN201880083430.0A priority Critical patent/CN111699348A/en
Priority to PCT/JP2018/005865 priority patent/WO2019162986A1/en
Priority to JP2020501870A priority patent/JPWO2019162986A1/en
Publication of WO2019162986A1 publication Critical patent/WO2019162986A1/en

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    • 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 fan for performing ventilation through a duct.
  • Patent Document 1 discloses a duct ventilation fan in which an external power supply wire is inserted into a wire connection device installed on the upper surface of a ventilation fan body that houses a fan casing, and the wire connection device and the external power supply wire are electrically connected. ing.
  • Patent Document 1 is difficult to access the wire connection device installed on the upper surface of the ventilation fan body, and the connection work between the wire connection device and the external power supply wire and the maintenance work of the connection portion of the wire connection device It is difficult to do. Therefore, in the invention disclosed in Patent Document 1, there is a possibility that the reliability of the electrical connection between the external power supply wire and the wire connecting device outside the ventilation fan main body is lowered.
  • This invention is made in view of the above, Comprising: It aims at obtaining the ventilation fan for ducts in which the reliability of the electrical connection with the external power supply electric wire and electric wire connection apparatus outside a ventilation fan main body cannot fall easily. To do.
  • the present invention is a box shape having a top surface and a bottom surface opened, an exhaust port is provided on a side surface, and a ventilation fan body in which the bottom surface opening forms an intake port, A motor mounting plate that closes the top surface of the ventilation fan body and is attachable to and detachable from the ventilation fan body through an opening on the bottom surface of the ventilation fan body, a fan that forms an airflow that flows into the ventilation fan body from the intake port and flows out from the exhaust port, and the fan A fan that is fixed to the motor mounting plate, a wire connecting device that is installed on the upper surface of the motor mounting plate and electrically connects the external power supply wire and the motor, and a motor mounting plate And a protective member that is installed on the upper surface and prevents the reliability of the electrical connection between the electric wire connecting device outside the ventilation fan body and the external power source electric wire from being lowered.
  • the blower, the wire connecting device, and the protection member can be attached to and detached from the ventilation fan body through the opening
  • the duct ventilation fan according to the present invention has an effect that the reliability of the electrical connection between the external power supply wire and the wire connecting device outside the ventilation fan body is not easily lowered.
  • Sectional drawing which shows the attachment state of the ventilation fan for ducts which concerns on Embodiment 1 of this invention
  • Sectional drawing which shows the attachment state of the ventilation fan for ducts which concerns on Embodiment 1.
  • FIG. Sectional drawing which shows the state which removed the motor attachment board from the top
  • FIG. 1 The perspective view of the top
  • FIG. 1 The perspective view of the top
  • FIG. Sectional drawing which shows the state which removed the motor attachment plate from the top
  • upper surface side which shows the state which removed the motor mounting plate from the top
  • FIG. 1 The perspective view of the top
  • FIG. 1 is a cross-sectional view showing a mounted state of a duct ventilation fan according to Embodiment 1 of the present invention.
  • FIG. 2 is a bottom view of the duct ventilation fan according to Embodiment 1 when the decorative grille is not attached.
  • FIG. 3 is a perspective view of the top surface side before laying the external power supply wire of the duct ventilation fan according to the first embodiment.
  • FIG. 4 is a perspective view of the top surface side after the external power supply wires of the duct ventilation fan according to Embodiment 1 are laid.
  • the duct ventilation fan 100 ventilates indoor air by inserting the duct connection port 8 from the indoor side into the duct 14 that has an opening in the ceiling 25 and that communicates with the outside of the room.
  • the duct ventilation fan 100 is provided on the side of the ventilation fan body 2 and the side surface of the ventilation fan body 2 and extends in a direction perpendicular to the ventilation fan body 2, and extends the exhaust port 10 serving as an air flow outlet to a position communicating with the duct 14. It has a duct connection port 8 and a blower 1 that is a ventilation drive body for circulating air to be ventilated.
  • the ventilation fan body 2 has a fan casing 5 that houses the blower 1.
  • the duct ventilation fan 100 according to the first embodiment is arranged on the back of the ceiling through an opening formed in the ceiling 25, and is installed by inserting the duct connection port 8 from the indoor side into the duct 14 leading to the outdoors.
  • the duct ventilation fan 100 is fixed by being embedded in a body embedding hole 26 formed in the ceiling 25 and driving a screw into the ceiling 25 through a screw hole 27 provided in the flange 2a of the ventilation fan body 2.
  • the duct ventilation fan 100 includes a decorative grill 12 that is a design part so that internal parts such as the fan casing 5 can be seen and the appearance is not deteriorated.
  • the decorative grill 12 includes a spring 13 for attaching the main body, and is fixed by hooking the spring 13 to a spring fixing portion 7 provided in the fan casing 5.
  • the ventilation fan body 2 has a box shape in which the top surface 28 and the bottom surface are opened, and an exhaust port 10 is provided on a side surface.
  • the ventilating fan body 2 has an intake opening at the bottom.
  • a duct connection port 8 is connected to the exhaust port 10.
  • the opening of the top surface 28 is blocked by the motor mounting plate 22.
  • the motor mounting plate 22 is fixed to the top surface 28 from below with a motor mounting plate fixing screw 30.
  • the motor mounting plate 22 can be removed from the top surface 28 to the opening side by removing the motor mounting plate fixing screw 30. That is, the motor mounting plate 22 can be attached to and detached from the ventilation fan body 2 through the opening on the bottom surface of the ventilation fan body 2.
  • the blower 1 includes a motor 3 and a fan 4 that is plugged into a drive shaft of the motor 3.
  • the fan 4 forms an airflow that flows into the ventilation fan body 2 from the intake port and flows out from the exhaust port 10.
  • the motor 3 drives the fan 4.
  • the motor 3 is fixed to the motor mounting plate 22.
  • the bottom of the fan casing 5 is opened to form a suction port 6.
  • the wire connection device 20 and the motor 3 are electrically connected by a motor wire 23.
  • the electric wire connecting device 20 is covered with the electric wire connecting device cover 11, and dust on the back of the ceiling is difficult to adhere.
  • the electric power supplied through the external power supply wire 21 flows from the motor wire 23 to the motor 3 through the wire connection device 20, so that electric energy is converted into a rotational motion of the shaft of the motor 3.
  • the motor 3 transmits the rotational motion to the fan 4
  • the fan 4 rotates and an air flow is formed in the fan casing 5.
  • the fan casing 5 forms an exhaust air path in which the air sucked from the suction port 6 reaches the exhaust port 10 along the inner wall of the fan casing 5 by the blower 1.
  • the fan casing 5 in the first embodiment is fixed to the motor mounting plate 22 with screws, and can be removed integrally with the motor mounting plate 22. However, the fan casing 5 may be fixed to the top surface 28 and removed separately from the
  • the duct connection port 8 has a stepped outer shape with different diameters. Since the outer shape of the duct connection port 8 has a step shape with different diameters, it is possible to connect to the ducts 14 with 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 opens with the wind pressure when the duct ventilation fan 100 is in operation, and closes the duct connection port 8 with its own weight when the duct 9 is stopped. By providing the shutter 9 in the duct connection port 8, it is possible to prevent outside air from entering the room when the duct ventilation fan 100 is stopped.
  • the duct 14 extends to the outside and is connected to a hood provided on the outer wall of the building to form a ventilation air passage for ventilating the air in the house.
  • Components such as a control circuit 15 that controls the blower 1 are also attached to the motor mounting plate 22.
  • the wire connection device 20 installed on the upper surface of the motor mounting plate 22 is connected to the external power supply wire 21.
  • the external power supply wires 21 shown in FIGS. 3 and 4 are two-core cables. However, when the duct ventilation fan 100 is a model in which the air volume can be set in a plurality of stages, a three-core or more cable may be used.
  • the external power supply wire 21 is configured to be fixed and electrically connected inside the wire connection device 20 by being inserted into the connection part 20a of the wire connection device 20.
  • the electric wire connecting device 20 can release the fixation of the external power supply wire 21 by pressing the release button 24, and can pull out the external power supply wire 21 from the connection portion 20a when the release button 24 is pressed. .
  • connection portion 20 a of the wire connection device 20 if a strong force in the direction of pulling out from the connection portion 20 a is continuously applied to the external power supply wire 21 without pressing the release button 24, there is a concern that the external power supply wire 21 comes out of the connection portion 20 a of the wire connection device 20. If the external power supply wire 21 is disconnected from the connection portion 20a of the wire connection device 20 in a state where electricity flows, the core wires of the external power supply wire 21 may be short-circuited.
  • FIG. 5 is a cross-sectional view showing a state in which the duct ventilation fan according to Embodiment 1 is attached.
  • FIG. 6 is a cross-sectional view showing a state where the motor mounting plate is removed from the top surface of the ventilation fan body of the duct ventilation fan according to Embodiment 1.
  • FIG. 7 is a top side perspective view showing a state in which the motor mounting plate is removed from the top surface of the ventilation fan body of the duct ventilation fan according to Embodiment 1.
  • the electric wire connecting device 20 is also fixedly attached to the upper surface of the motor attachment plate 22 and can be removed together with the motor 3 attached to the motor attachment plate 22 and other components. Maintenance of the motor 3 and the like can be easily performed without providing an opening for maintenance on the ceiling 25 by adopting a structure in which the wire connecting device 20 can be removed together with the motor 3 and other components attached to the motor mounting plate 22. It becomes.
  • the duct ventilation fan 100 is configured such that the power supply wire fixing component 29 can be attached to the upper surface of the motor mounting plate 22 or the component attached to the upper surface of the motor mounting plate 22 and the external power supply wire 21 can be fixed. Yes.
  • the force is suppressed by the power supply wire fixing component 29 even when a force in the direction of extracting from the wire connection device 20 is applied to the external power supply wire 21. Therefore, even if a force in the direction of extracting from the wire connecting device 20 is applied to the external power supply wire 21, no force is transmitted to the wire connecting device 20, and there is no possibility that the external power supply wire 21 is disconnected from the wire connecting device 20.
  • the power supply wire fixing component 29 reduces the reliability of electrical connection between the wire connection device 20 and the external power supply wire 21 outside the ventilation fan body 2. It is a protective member to prevent. Further, by attaching the power supply wire fixing component 29 on the upper surface of the motor mounting plate 22 or a component mounted on the upper surface of the motor mounting plate 22, it can be removed together with the components mounted on the motor mounting plate 22. There is no possibility that the external power supply wire 21 will come off during the removal.
  • the duct ventilation fan 100 can maintain the electronic components including the motor 3 without providing a maintenance hole in the ceiling 25 in the vicinity of the installation position. There is no need to consider the position where the holes for maintenance are provided during construction.
  • the duct ventilation fan 100 prevents the external power supply wire 21 from coming off from the wire connection device 20, so that the electrical connection between the wire connection device 20 and the external power supply wire 21 outside the ventilation fan body 2 is performed.
  • the reliability of general connection is unlikely to deteriorate.
  • FIG. FIG. 8 is a perspective view of the top surface side of the duct ventilation fan according to Embodiment 2 of the present invention.
  • the duct ventilation fan 100 according to the second embodiment includes the dust intrusion suppression cover 31 that suppresses dust from entering the insertion portion of the external power supply wire 21 into the wire connecting device 20. It differs from the ventilation fan 100 for ducts concerning.
  • the dust intrusion suppression cover 31 is formed of a flame retardant material or a non-flammable material.
  • the dust intrusion suppression cover 31 is fixed to the upper surface of the motor mounting plate 22.
  • the dust intrusion suppression cover 31 can suppress the intrusion of dust into the connection portion 20a of the electric wire connection device 20, and the reliability of the electrical connection between the electric wire connection device 20 and the external power supply wire 21 outside the ventilation fan body 2 is reduced. Can be prevented. Further, the dust intrusion suppression cover 31 can suppress the intrusion of dust into the connection portion 20a of the wire connecting device 20, and the tracking by dust or heat insulating material on the back of the ceiling is prevented. Moreover, since the dust intrusion suppression cover 31 is formed of a flame retardant material or a non-flammable material, it is possible to prevent the spread of fire even if tracking occurs in the connection portion 20a of the wire connection device 20.
  • the protective member for preventing the reliability of the electrical connection between the electric wire connecting device 20 and the external power supply cable 21 outside the ventilation fan main body 2 from decreasing is the external power supply cable.
  • 21 includes a power supply wire fixing component 29 that prevents the wire 21 from being pulled out from the wire connection device 20, and a dust intrusion suppression cover 31 that prevents dust from entering the connection portion 20 a of the external power supply wire 21. That is, in the duct ventilation fan 100 according to the second embodiment, not only the power supply wire fixing component 29 but also the dust intrusion suppression cover 31 is electrically connected between the wire connection device 20 and the external power supply wire 21 outside the ventilation fan body 2. It is a protective member that prevents the connection reliability from being lowered.
  • FIG. 9 is a cross-sectional view showing a state where the duct ventilation fan according to the second embodiment is attached.
  • FIG. 10 is a cross-sectional view illustrating a state where the motor mounting plate is removed from the top surface of the ventilation fan body of the duct ventilation fan according to Embodiment 2.
  • FIG. 11 is a top side perspective view showing a state where the motor mounting plate is removed from the top surface of the ventilation fan body of the duct ventilation fan according to Embodiment 2.
  • the dust intrusion suppression cover 31 is fixed to the top surface 28, the external power supply wire 21 is caught in the portion of the dust intrusion suppression cover 31 through which the external power supply wire 21 passes, and the coating of the external power supply wire 21 is damaged. In some cases, the motor mounting plate 22 cannot be easily removed.
  • the dust intrusion suppression cover 31 is provided on the motor mounting plate 22. Therefore, when removing the maintenance parts together with the motor mounting plate 22, the dust intrusion suppression cover 31 can be removed at the same time. It has become. Therefore, the duct ventilation fan 100 according to Embodiment 2 can easily remove the motor mounting plate 22.
  • the duct ventilation fan 100 according to Embodiment 2 can maintain the electronic components including the motor 3 without providing a maintenance hole in the ceiling 25 near the installation position. There is no need to consider the position where the holes for maintenance are provided during construction.
  • the power supply wire fixing component 29 is also attached to the upper surface of the motor mounting plate 22 or the upper surface of the motor mounting plate 22. It is provided on the part. Thereby, the tension applied to the insertion portion of the external power supply wire 21 to the wire connection device 20 can be suppressed, and the external power supply wire 21 is difficult to be removed from the wire connection device 20.
  • the power supply wire fixing component 29 and the dust intrusion suppression cover 31 may be integrally formed. By integrating the power supply wire fixing component 29 and the dust intrusion prevention cover 31, the number of components can be reduced. Further, the duct ventilation fan 100 according to the second embodiment may not include the power supply wire fixing component 29. That is, in the duct ventilation fan 100 according to the second embodiment, the protective member that prevents the reliability of the electrical connection between the electric wire connecting device 20 and the external power supply cable 21 outside the ventilation fan main body 2 from being reduced is dust. Only the intrusion suppression cover 31 may be used.
  • the duct ventilation fan 100 includes the dust intrusion suppression cover 31 that suppresses dust from entering the connection portion 20a of the wire connection device 20, the wire connection device 20 outside the ventilation fan body 2 and The reliability of the electrical connection with the external power supply wire 21 is unlikely to decrease.
  • 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)
  • Ventilation (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A duct ventilator comprises: a ventilator body (2) that has a box shape with the top face (28) and the bottom face opened, that is provided with an air outlet on a side face, and for which the bottom face opening forms an air inlet; a motor mount plate (22) that covers the top face of the ventilator body (2) and that can be attached to and removed from the ventilator body through the bottom face opening of the ventilator body; a blower that has a fan to form an air flow to blow air into the ventilator body (2) from the air inlet and out from the air outlet, and a motor (3) to drive the fan, wherein the motor (3) is fixed to the motor mount plate (22); an electric wire connection device that is disposed on the upper face of the motor mount plate (22) and that electrically connects an external power source electric wire (21) and the motor (3); and a power source electric wire anchor part (29) that is disposed on the upper face of the motor mount plate (22) and that prevents deterioration of the reliability of the electrical connection between the electric wire connection device and the external power source electric wire (21) on the outside of the ventilator body (2).

Description

ダクト用換気扇Duct ventilation fan
　本発明は、ダクトを通じて換気を行うダクト用換気扇に関する。 The present invention relates to a duct fan for performing ventilation through a duct.
　特許文献１には、ファンケーシングを収容する換気扇本体の上面に設置した電線接続装置に外部電源電線を挿入して、電線接続装置と外部電源電線とを電気的に接続するダクト用換気扇が開示されている。 Patent Document 1 discloses a duct ventilation fan in which an external power supply wire is inserted into a wire connection device installed on the upper surface of a ventilation fan body that houses a fan casing, and the wire connection device and the external power supply wire are electrically connected. ing.
特許第５１２５５５５号公報Japanese Patent No. 5125555
　しかしながら、上記特許文献１に開示される発明は、換気扇本体の上面に設置された電線接続装置へアクセスしにくく、電線接続装置と外部電源電線との接続作業及び電線接続装置の結線部のメンテナンス作業を行いにくい。したがって、特許文献１に開示される発明は、換気扇本体の外での外部電源電線と電線接続装置との電気的な接続の確実性が低下する可能性があった。 However, the invention disclosed in Patent Document 1 is difficult to access the wire connection device installed on the upper surface of the ventilation fan body, and the connection work between the wire connection device and the external power supply wire and the maintenance work of the connection portion of the wire connection device It is difficult to do. Therefore, in the invention disclosed in Patent Document 1, there is a possibility that the reliability of the electrical connection between the external power supply wire and the wire connecting device outside the ventilation fan main body is lowered.
　本発明は、上記に鑑みてなされたものであって、換気扇本体の外での外部電源電線と電線接続装置との電気的な接続の確実性が低下しにくいダクト用換気扇を得ることを目的とする。 This invention is made in view of the above, Comprising: It aims at obtaining the ventilation fan for ducts in which the reliability of the electrical connection with the external power supply electric wire and electric wire connection apparatus outside a ventilation fan main body cannot fall easily. To do.
　上述した課題を解決し、目的を達成するために、本発明は、天面及び底面が開口した箱状であり、側面に排気口が設けられ、底面の開口が吸気口をなす換気扇本体と、換気扇本体の天面を塞ぎ、換気扇本体の底面の開口を通じて換気扇本体に着脱可能なモータ取付板と、吸気口から換気扇本体の中に流入して排気口から流出する気流を形成するファン、及びファンを駆動するモータを有し、モータがモータ取付板に固定される送風機と、モータ取付板の上面に設置され、外部電源電線とモータとを電気的に接続する電線接続装置と、モータ取付板の上面に設置され、換気扇本体の外での電線接続装置と外部電源電線との電気的接続の確実性が低下することを防止する保護部材とを備える。送風機、電線接続装置及び保護部材は、モータ取付板とともに換気扇本体の底面の開口を通じて、換気扇本体に着脱可能である。 In order to solve the above-described problems and achieve the object, the present invention is a box shape having a top surface and a bottom surface opened, an exhaust port is provided on a side surface, and a ventilation fan body in which the bottom surface opening forms an intake port, A motor mounting plate that closes the top surface of the ventilation fan body and is attachable to and detachable from the ventilation fan body through an opening on the bottom surface of the ventilation fan body, a fan that forms an airflow that flows into the ventilation fan body from the intake port and flows out from the exhaust port, and the fan A fan that is fixed to the motor mounting plate, a wire connecting device that is installed on the upper surface of the motor mounting plate and electrically connects the external power supply wire and the motor, and a motor mounting plate And a protective member that is installed on the upper surface and prevents the reliability of the electrical connection between the electric wire connecting device outside the ventilation fan body and the external power source electric wire from being lowered. The blower, the wire connecting device, and the protection member can be attached to and detached from the ventilation fan body through the opening on the bottom surface of the ventilation fan body together with the motor mounting plate.
　本発明に係るダクト用換気扇は、換気扇本体の外での外部電源電線と電線接続装置との電気的な接続の確実性が低下しにくいという効果を奏する。 The duct ventilation fan according to the present invention has an effect that the reliability of the electrical connection between the external power supply wire and the wire connecting device outside the ventilation fan body is not easily lowered.
本発明の実施の形態１に係るダクト用換気扇の取り付け状態を示す断面図Sectional drawing which shows the attachment state of the ventilation fan for ducts which concerns on Embodiment 1 of this invention 実施の形態１に係るダクト用換気扇の化粧グリルを未装着状態での下面図The bottom view in the state where the decorative grill of the ventilation fan for ducts according to Embodiment 1 is not attached 実施の形態１に係るダクト用換気扇の外部電源電線を敷設前の天面側の斜視図The perspective view of the top | upper surface side before laying the external power supply electric wire of the ventilation fan for ducts which concerns on Embodiment 1 実施の形態１に係るダクト用換気扇の外部電源電線を敷設後の天面側の斜視図The perspective view of the top | upper surface side after laying the external power supply electric wire of the ventilation fan for ducts concerning Embodiment 1 実施の形態１に係るダクト用換気扇の取り付け状態を示す断面図Sectional drawing which shows the attachment state of the ventilation fan for ducts which concerns on Embodiment 1. FIG. 実施の形態１に係るダクト用換気扇の換気扇本体の天面からモータ取付板を取り外した状態を示す断面図Sectional drawing which shows the state which removed the motor attachment board from the top | upper surface of the ventilation fan main body of the ventilation fan for ducts which concerns on Embodiment 1. FIG. 実施の形態１に係るダクト用換気扇の換気扇本体の天面からモータ取付板を取り外した状態を示す天面側の斜視図The perspective view of the top | upper surface side which shows the state which removed the motor attachment board from the top | upper surface of the ventilation fan main body of the ventilation fan for ducts which concerns on Embodiment 1. FIG. 本発明の実施の形態２に係るダクト用換気扇の天面側の斜視図The perspective view of the top | upper surface side of the ventilation fan for ducts concerning Embodiment 2 of this invention 実施の形態２に係るダクト用換気扇の取り付け状態を示す断面図Sectional drawing which shows the attachment state of the ventilation fan for ducts which concerns on Embodiment 2. FIG. 実施の形態２に係るダクト用換気扇の換気扇本体の天面からモータ取付板を取り外した状態を示す断面図Sectional drawing which shows the state which removed the motor attachment plate from the top | upper surface of the ventilation fan main body of the ventilation fan for ducts which concerns on Embodiment 2. FIG. 実施の形態２に係るダクト用換気扇の換気扇本体の天面からモータ取付板を取り外した状態を示す天面側の斜視図The perspective view of the top | upper surface side which shows the state which removed the motor mounting plate from the top | upper surface of the ventilation fan main body of the ventilation fan for ducts concerning Embodiment 2. FIG.
　以下に、本発明の実施の形態に係るダクト用換気扇を図面に基づいて詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。 Hereinafter, a ventilation fan for a duct according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.
実施の形態１．
　図１は、本発明の実施の形態１に係るダクト用換気扇の取り付け状態を示す断面図である。図２は、実施の形態１に係るダクト用換気扇の化粧グリルを未装着状態での下面図である。図３は、実施の形態１に係るダクト用換気扇の外部電源電線を敷設前の天面側の斜視図である。図４は、実施の形態１に係るダクト用換気扇の外部電源電線を敷設後の天面側の斜視図である。実施の形態１に係るダクト用換気扇１００は、天井２５に開口を設け室内外を連通させるダクト１４に室内側からダクト接続口８を挿入して室内の空気を換気する。ダクト用換気扇１００は、換気扇本体２と、換気扇本体２の側部に設けられ換気扇本体２の側面から直角方向に延び、気流の吐出口となる排気口１０をダクト１４に連通する位置まで延長するダクト接続口８と、換気する空気を流通させる換気駆動体である送風機１とを有している。換気扇本体２は、送風機１を収納するファンケーシング５を有している。実施の形態１に係るダクト用換気扇１００は、天井２５に形成された開口を通じて天井裏に配置され、屋外に通じるダクト１４に室内側からダクト接続口８を挿入して設置される。 Embodiment 1 FIG.
FIG. 1 is a cross-sectional view showing a mounted state of a duct ventilation fan according to Embodiment 1 of the present invention. FIG. 2 is a bottom view of the duct ventilation fan according to Embodiment 1 when the decorative grille is not attached. FIG. 3 is a perspective view of the top surface side before laying the external power supply wire of the duct ventilation fan according to the first embodiment. FIG. 4 is a perspective view of the top surface side after the external power supply wires of the duct ventilation fan according to Embodiment 1 are laid. The duct ventilation fan 100 according to the first embodiment ventilates indoor air by inserting the duct connection port 8 from the indoor side into the duct 14 that has an opening in the ceiling 25 and that communicates with the outside of the room. The duct ventilation fan 100 is provided on the side of the ventilation fan body 2 and the side surface of the ventilation fan body 2 and extends in a direction perpendicular to the ventilation fan body 2, and extends the exhaust port 10 serving as an air flow outlet to a position communicating with the duct 14. It has a duct connection port 8 and a blower 1 that is a ventilation drive body for circulating air to be ventilated. The ventilation fan body 2 has a fan casing 5 that houses the blower 1. The duct ventilation fan 100 according to the first embodiment is arranged on the back of the ceiling through an opening formed in the ceiling 25, and is installed by inserting the duct connection port 8 from the indoor side into the duct 14 leading to the outdoors.
　ダクト用換気扇１００は、天井２５に開けられた本体埋込穴２６に埋込み、換気扇本体２のフランジ２ａに設けられたねじ穴２７を通じて天井２５にねじを打ち込むことで固定される。ダクト用換気扇１００は、ファンケーシング５といった内部部品が見えて見栄えが悪くならないようにするため意匠部品である化粧グリル１２を備える。化粧グリル１２は、本体取付用のスプリング１３を備えており、スプリング１３をファンケーシング５に備えられているスプリング固定部７に引っ掛けることにより固定される。 The duct ventilation fan 100 is fixed by being embedded in a body embedding hole 26 formed in the ceiling 25 and driving a screw into the ceiling 25 through a screw hole 27 provided in the flange 2a of the ventilation fan body 2. The duct ventilation fan 100 includes a decorative grill 12 that is a design part so that internal parts such as the fan casing 5 can be seen and the appearance is not deteriorated. The decorative grill 12 includes a spring 13 for attaching the main body, and is fixed by hooking the spring 13 to a spring fixing portion 7 provided in the fan casing 5.
　換気扇本体２は、天面２８及び底面が開口した箱状であり、側面に排気口１０が設けられている。換気扇本体２は、底面の開口が吸気口をなす。排気口１０にはダクト接続口８が接続される。天面２８の開口は、モータ取付板２２によって塞がれている。モータ取付板２２は、天面２８に下側からモータ取付板固定ねじ３０で固定されている。モータ取付板２２は、モータ取付板固定ねじ３０を取り外すことで、天面２８から開口側に取り外し可能となる。すなわち、モータ取付板２２は、換気扇本体２の底面の開口を通じて換気扇本体２に着脱可能である。 The ventilation fan body 2 has a box shape in which the top surface 28 and the bottom surface are opened, and an exhaust port 10 is provided on a side surface. The ventilating fan body 2 has an intake opening at the bottom. A duct connection port 8 is connected to the exhaust port 10. The opening of the top surface 28 is blocked by the motor mounting plate 22. The motor mounting plate 22 is fixed to the top surface 28 from below with a motor mounting plate fixing screw 30. The motor mounting plate 22 can be removed from the top surface 28 to the opening side by removing the motor mounting plate fixing screw 30. That is, the motor mounting plate 22 can be attached to and detached from the ventilation fan body 2 through the opening on the bottom surface of the ventilation fan body 2.
　送風機１は、モータ３と、モータ３の駆動軸に差込結合されたファン４とから構成されている。ファン４は、吸気口から換気扇本体２の中に流入して排気口１０から流出する気流を形成する。モータ３は、ファン４を駆動する。モータ３は、モータ取付板２２に固定されている。 The blower 1 includes a motor 3 and a fan 4 that is plugged into a drive shaft of the motor 3. The fan 4 forms an airflow that flows into the ventilation fan body 2 from the intake port and flows out from the exhaust port 10. The motor 3 drives the fan 4. The motor 3 is fixed to the motor mounting plate 22.
　ファンケーシング５は、底面が開放されて吸込口６が形成されている。電線接続装置２０とモータ３とは、モータ電線２３により電気的に接続されている。電線接続装置２０は、電線接続装置カバー１１で覆われており、天井裏の埃が付着しにくくなっている。外部電源電線２１を通じて供給された電力が電線接続装置２０を介しモータ電線２３からモータ３に流れることで、電気エネルギーがモータ３のシャフトの回転運動に変換される。モータ３が回転運動をファン４に伝えることでファン４が回転し、ファンケーシング５内に空気の流れが形成される。ファンケーシング５は、吸込口６から吸われた空気が送風機１によってファンケーシング５の内壁に沿って排気口１０に至る排気風路を形成している。実施の形態１でのファンケーシング５は、モータ取付板２２にねじによって固定されており、モータ取付板２２と一体に取り外し可能である。ただし、ファンケーシング５は、天面２８に固定され、モータ取付板２２とは別に取り外す構造であってもよい。 The bottom of the fan casing 5 is opened to form a suction port 6. The wire connection device 20 and the motor 3 are electrically connected by a motor wire 23. The electric wire connecting device 20 is covered with the electric wire connecting device cover 11, and dust on the back of the ceiling is difficult to adhere. The electric power supplied through the external power supply wire 21 flows from the motor wire 23 to the motor 3 through the wire connection device 20, so that electric energy is converted into a rotational motion of the shaft of the motor 3. When the motor 3 transmits the rotational motion to the fan 4, the fan 4 rotates and an air flow is formed in the fan casing 5. The fan casing 5 forms an exhaust air path in which the air sucked from the suction port 6 reaches the exhaust port 10 along the inner wall of the fan casing 5 by the blower 1. The fan casing 5 in the first embodiment is fixed to the motor mounting plate 22 with screws, and can be removed integrally with the motor mounting plate 22. However, the fan casing 5 may be fixed to the top surface 28 and removed separately from the motor mounting plate 22.
　ダクト接続口８は、径の異なる段状の外形を有している。ダクト接続口８の外形が径の異なる段状であることにより、径が異なるダクト１４に接続することが可能であるとともに、テーピングなどの作業性が向上する。ダクト接続口８内には、風圧にて開閉するシャッタ９が設けられている。シャッタ９は、ダクト用換気扇１００の運転時には風圧で開き、停止時はシャッタ９の自重でダクト接続口８を閉鎖する。ダクト接続口８内にシャッタ９を設けることで、ダクト用換気扇１００の停止時に屋外からの外風が室内に侵入するのを防止することができる。 The duct connection port 8 has a stepped outer shape with different diameters. Since the outer shape of the duct connection port 8 has a step shape with different diameters, it is possible to connect to the ducts 14 with 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 opens with the wind pressure when the duct ventilation fan 100 is in operation, and closes the duct connection port 8 with its own weight when the duct 9 is stopped. By providing the shutter 9 in the duct connection port 8, it is possible to prevent outside air from entering the room when the duct ventilation fan 100 is stopped.
　ダクト１４は、屋外まで延びており建物の屋外外壁に備えたフードなどと連結し、住宅内の空気を換気する換気風路を形成している。 The duct 14 extends to the outside and is connected to a hood provided on the outer wall of the building to form a ventilation air passage for ventilating the air in the house.
　モータ取付板２２には、送風機１を制御する制御回路１５といった部品も取り付けられている。モータ取付板２２の上面に設置された電線接続装置２０は、外部電源電線２１と接続される。図３及び図４に示す外部電源電線２１は２芯のケーブルであるが、ダクト用換気扇１００が複数段階で風量を設定できる機種の場合は３芯以上のケーブルを用いる場合もある。外部電源電線２１は、電線接続装置２０の結線部２０ａに挿入することにより、電線接続装置２０内部にて固定され、電気的に接続される構造となっている。電線接続装置２０は、解除ボタン２４を押すことで外部電源電線２１の固定解除が可能であり、解除ボタン２４が押されている状態では外部電源電線２１を結線部２０ａから引き抜くことが可能である。 Components such as a control circuit 15 that controls the blower 1 are also attached to the motor mounting plate 22. The wire connection device 20 installed on the upper surface of the motor mounting plate 22 is connected to the external power supply wire 21. The external power supply wires 21 shown in FIGS. 3 and 4 are two-core cables. However, when the duct ventilation fan 100 is a model in which the air volume can be set in a plurality of stages, a three-core or more cable may be used. The external power supply wire 21 is configured to be fixed and electrically connected inside the wire connection device 20 by being inserted into the connection part 20a of the wire connection device 20. The electric wire connecting device 20 can release the fixation of the external power supply wire 21 by pressing the release button 24, and can pull out the external power supply wire 21 from the connection portion 20a when the release button 24 is pressed. .
　しかしながら、解除ボタン２４を押さずとも外部電源電線２１に結線部２０ａから引き抜く方向の強い力を加え続けると、外部電源電線２１が電線接続装置２０の結線部２０ａから抜けてしまうといった懸念がある。電気が流れた状態で外部電源電線２１が電線接続装置２０の結線部２０ａから抜けてしまうと、外部電源電線２１の芯線同士がショートする可能性がある。 However, if a strong force in the direction of pulling out from the connection portion 20 a is continuously applied to the external power supply wire 21 without pressing the release button 24, there is a concern that the external power supply wire 21 comes out of the connection portion 20 a of the wire connection device 20. If the external power supply wire 21 is disconnected from the connection portion 20a of the wire connection device 20 in a state where electricity flows, the core wires of the external power supply wire 21 may be short-circuited.
　図５は、実施の形態１に係るダクト用換気扇の取り付け状態を示す断面図である。図６は、実施の形態１に係るダクト用換気扇の換気扇本体の天面からモータ取付板を取り外した状態を示す断面図である。図７は、実施の形態１に係るダクト用換気扇の換気扇本体の天面からモータ取付板を取り外した状態を示す天面側の斜視図である。実施の形態１に係るダクト用換気扇１００は、化粧グリル１２を取り外した状態では、換気扇本体２及びダクト接続口８を天井２５に残したまま、その他の部品をモータ取付板２２ごと換気扇本体２の開口面側に取り出すことが可能である。電線接続装置２０もまたモータ取付板２２の上面に固定されて取り付けられており、モータ取付板２２に取り付けられているモータ３及び他の部品とともに取り外し可能である。モータ取付板２２に取り付けられているモータ３及び他の部品とともに電線接続装置２０を取り外し可能な構造とすることで天井２５にメンテナンスのための開口を設けなくともモータ３などのメンテナンスが容易に可能となる。 FIG. 5 is a cross-sectional view showing a state in which the duct ventilation fan according to Embodiment 1 is attached. FIG. 6 is a cross-sectional view showing a state where the motor mounting plate is removed from the top surface of the ventilation fan body of the duct ventilation fan according to Embodiment 1. FIG. 7 is a top side perspective view showing a state in which the motor mounting plate is removed from the top surface of the ventilation fan body of the duct ventilation fan according to Embodiment 1. FIG. In the duct ventilation fan 100 according to the first embodiment, in a state where the decorative grill 12 is removed, the ventilation fan body 2 and the duct connection port 8 are left on the ceiling 25, and other components are mounted on the ventilation fan body 2 together with the motor mounting plate 22. It is possible to take out to the opening surface side. The electric wire connecting device 20 is also fixedly attached to the upper surface of the motor attachment plate 22 and can be removed together with the motor 3 attached to the motor attachment plate 22 and other components. Maintenance of the motor 3 and the like can be easily performed without providing an opening for maintenance on the ceiling 25 by adopting a structure in which the wire connecting device 20 can be removed together with the motor 3 and other components attached to the motor mounting plate 22. It becomes.
　実施の形態１に係るダクト用換気扇１００は、モータ取付板２２の上面又はモータ取付板２２の上面に取り付けられた部品上に電源電線固定部品２９を取り付け可能とし外部電源電線２１を固定可能にしている。電源電線固定部品２９で外部電源電線２１を固定することにより、外部電源電線２１に電線接続装置２０から抜き取る方向の力が加わっても、電源電線固定部品２９によって力は抑制される。したがって、外部電源電線２１に電線接続装置２０から抜き取る方向の力が加わっても、電線接続装置２０に対して力が伝わることがなく、外部電源電線２１が電線接続装置２０から抜けるおそれがない。すなわち、実施の形態１に係るダクト用換気扇１００において、電源電線固定部品２９は、換気扇本体２の外での電線接続装置２０と外部電源電線２１との電気的接続の確実性が低下することを防止する保護部材である。また、電源電線固定部品２９をモータ取付板２２の上面又はモータ取付板２２の上面に取り付けられた部品上に取り付けることで、モータ取付板２２に取り付けられる部品とともに取り外し可能であり、モータ取付板２２の取り外しの際も外部電源電線２１が抜けるおそれがない。 The duct ventilation fan 100 according to the first embodiment is configured such that the power supply wire fixing component 29 can be attached to the upper surface of the motor mounting plate 22 or the component attached to the upper surface of the motor mounting plate 22 and the external power supply wire 21 can be fixed. Yes. By fixing the external power supply wire 21 with the power supply wire fixing component 29, the force is suppressed by the power supply wire fixing component 29 even when a force in the direction of extracting from the wire connection device 20 is applied to the external power supply wire 21. Therefore, even if a force in the direction of extracting from the wire connecting device 20 is applied to the external power supply wire 21, no force is transmitted to the wire connecting device 20, and there is no possibility that the external power supply wire 21 is disconnected from the wire connecting device 20. That is, in the duct ventilation fan 100 according to the first embodiment, the power supply wire fixing component 29 reduces the reliability of electrical connection between the wire connection device 20 and the external power supply wire 21 outside the ventilation fan body 2. It is a protective member to prevent. Further, by attaching the power supply wire fixing component 29 on the upper surface of the motor mounting plate 22 or a component mounted on the upper surface of the motor mounting plate 22, it can be removed together with the components mounted on the motor mounting plate 22. There is no possibility that the external power supply wire 21 will come off during the removal.
　実施の形態１に係るダクト用換気扇１００は、設置位置付近の天井２５にメンテナンス用の穴を設けなくても、モータ３を始めとする電子部品のメンテナンスが可能であるため、天井２５を備える建屋の建築時にメンテナンス用の穴を設ける位置を考慮する必要がない。 The duct ventilation fan 100 according to the first embodiment can maintain the electronic components including the motor 3 without providing a maintenance hole in the ceiling 25 in the vicinity of the installation position. There is no need to consider the position where the holes for maintenance are provided during construction.
　実施の形態１に係るダクト用換気扇１００は、電線接続装置２０から外部電源電線２１が抜けることを防止しているため、換気扇本体２の外での電線接続装置２０と外部電源電線２１との電気的な接続の確実性が低下しにくい。 The duct ventilation fan 100 according to the first embodiment prevents the external power supply wire 21 from coming off from the wire connection device 20, so that the electrical connection between the wire connection device 20 and the external power supply wire 21 outside the ventilation fan body 2 is performed. The reliability of general connection is unlikely to deteriorate.
実施の形態２．
　図８は、本発明の実施の形態２に係るダクト用換気扇の天面側の斜視図である。実施の形態２に係るダクト用換気扇１００は、外部電源電線２１の電線接続装置２０への挿入部に埃が侵入することを抑制する埃侵入抑制カバー３１を備えている点で、実施の形態１に係るダクト用換気扇１００と相違している。埃侵入抑制カバー３１は、難燃性材料又は不燃性材料で形成されている。埃侵入抑制カバー３１は、モータ取付板２２の上面に固定されている。埃侵入抑制カバー３１により電線接続装置２０の結線部２０ａへの埃の侵入を抑制でき、換気扇本体２の外での電線接続装置２０と外部電源電線２１との電気的な接続の確実性が低下することを防止できる。また、埃侵入抑制カバー３１により電線接続装置２０の結線部２０ａへの埃の侵入を抑制でき、天井裏の埃又は断熱材によるトラッキングが防止される。また、埃侵入抑制カバー３１は難燃性材料又は不燃性材料で形成されているため、たとえ電線接続装置２０の結線部２０ａでトラッキングが発生しても、延焼を防止できる。 Embodiment 2. FIG.
FIG. 8 is a perspective view of the top surface side of the duct ventilation fan according to Embodiment 2 of the present invention. The duct ventilation fan 100 according to the second embodiment includes the dust intrusion suppression cover 31 that suppresses dust from entering the insertion portion of the external power supply wire 21 into the wire connecting device 20. It differs from the ventilation fan 100 for ducts concerning. The dust intrusion suppression cover 31 is formed of a flame retardant material or a non-flammable material. The dust intrusion suppression cover 31 is fixed to the upper surface of the motor mounting plate 22. The dust intrusion suppression cover 31 can suppress the intrusion of dust into the connection portion 20a of the electric wire connection device 20, and the reliability of the electrical connection between the electric wire connection device 20 and the external power supply wire 21 outside the ventilation fan body 2 is reduced. Can be prevented. Further, the dust intrusion suppression cover 31 can suppress the intrusion of dust into the connection portion 20a of the wire connecting device 20, and the tracking by dust or heat insulating material on the back of the ceiling is prevented. Moreover, since the dust intrusion suppression cover 31 is formed of a flame retardant material or a non-flammable material, it is possible to prevent the spread of fire even if tracking occurs in the connection portion 20a of the wire connection device 20.
　実施の形態２に係るダクト用換気扇１００において、換気扇本体２の外での電線接続装置２０と外部電源電線２１との電気的接続の確実性が低下することを防止する保護部材は、外部電源電線２１が電線接続装置２０から引き抜かれることを防止する電源電線固定部品２９と、外部電源電線２１の結線部２０ａに埃が侵入することを防止する埃侵入抑制カバー３１とを含む。すなわち、実施の形態２に係るダクト用換気扇１００においては、電源電線固定部品２９だけでなく埃侵入抑制カバー３１も、換気扇本体２の外での電線接続装置２０と外部電源電線２１との電気的接続の確実性が低下することを防止する保護部材である。 In the duct ventilation fan 100 according to the second embodiment, the protective member for preventing the reliability of the electrical connection between the electric wire connecting device 20 and the external power supply cable 21 outside the ventilation fan main body 2 from decreasing is the external power supply cable. 21 includes a power supply wire fixing component 29 that prevents the wire 21 from being pulled out from the wire connection device 20, and a dust intrusion suppression cover 31 that prevents dust from entering the connection portion 20 a of the external power supply wire 21. That is, in the duct ventilation fan 100 according to the second embodiment, not only the power supply wire fixing component 29 but also the dust intrusion suppression cover 31 is electrically connected between the wire connection device 20 and the external power supply wire 21 outside the ventilation fan body 2. It is a protective member that prevents the connection reliability from being lowered.
　図９は、実施の形態２に係るダクト用換気扇の取り付け状態を示す断面図である。図１０は、実施の形態２に係るダクト用換気扇の換気扇本体の天面からモータ取付板を取り外した状態を示す断面図である。図１１は、実施の形態２に係るダクト用換気扇の換気扇本体の天面からモータ取付板を取り外した状態を示す天面側の斜視図である。埃侵入抑制カバー３１が天面２８に固定されている場合は、モータ取付板２２を取り外す際に、埃侵入抑制カバー３１は天面２８に残ってしまう。したがって、埃侵入抑制カバー３１が天面２８に固定されている場合は、埃侵入抑制カバー３１の外部電源電線２１が通る部分に外部電源電線２１が引っ掛かって外部電源電線２１の被覆に傷がつくことがあり、モータ取付板２２は容易に取り外すことができない。実施の形態２に係るダクト用換気扇１００は、埃侵入抑制カバー３１をモータ取付板２２上に設けているため、モータ取付板２２ごとメンテナンス部品を取り外す際に、埃侵入抑制カバー３１も同時に取り外し可能となっている。したがって、実施の形態２に係るダクト用換気扇１００は、モータ取付板２２を容易に取り外すことができる。 FIG. 9 is a cross-sectional view showing a state where the duct ventilation fan according to the second embodiment is attached. FIG. 10 is a cross-sectional view illustrating a state where the motor mounting plate is removed from the top surface of the ventilation fan body of the duct ventilation fan according to Embodiment 2. FIG. 11 is a top side perspective view showing a state where the motor mounting plate is removed from the top surface of the ventilation fan body of the duct ventilation fan according to Embodiment 2. When the dust intrusion suppression cover 31 is fixed to the top surface 28, the dust intrusion suppression cover 31 remains on the top surface 28 when the motor mounting plate 22 is removed. Therefore, when the dust intrusion suppression cover 31 is fixed to the top surface 28, the external power supply wire 21 is caught in the portion of the dust intrusion suppression cover 31 through which the external power supply wire 21 passes, and the coating of the external power supply wire 21 is damaged. In some cases, the motor mounting plate 22 cannot be easily removed. In the duct ventilation fan 100 according to the second embodiment, the dust intrusion suppression cover 31 is provided on the motor mounting plate 22. Therefore, when removing the maintenance parts together with the motor mounting plate 22, the dust intrusion suppression cover 31 can be removed at the same time. It has become. Therefore, the duct ventilation fan 100 according to Embodiment 2 can easily remove the motor mounting plate 22.
　実施の形態２に係るダクト用換気扇１００は、設置位置付近の天井２５にメンテナンス用の穴を設けなくても、モータ３を始めとする電子部品のメンテナンスが可能であるため、天井２５を備える建屋の建築時にメンテナンス用の穴を設ける位置を考慮する必要がない。 The duct ventilation fan 100 according to Embodiment 2 can maintain the electronic components including the motor 3 without providing a maintenance hole in the ceiling 25 near the installation position. There is no need to consider the position where the holes for maintenance are provided during construction.
　実施の形態２に係るダクト用換気扇１００は、実施の形態１に係るダクト用換気扇１００と同様に、電源電線固定部品２９も、モータ取付板２２の上面又はモータ取付板２２の上面に取り付けられた部品上に設けられている。これにより外部電源電線２１の電線接続装置２０への挿入部にかかる張力を抑制可能であり、電線接続装置２０から外部電源電線２１が抜けにくい。 In the duct ventilation fan 100 according to the second embodiment, similarly to the duct ventilation fan 100 according to the first embodiment, the power supply wire fixing component 29 is also attached to the upper surface of the motor mounting plate 22 or the upper surface of the motor mounting plate 22. It is provided on the part. Thereby, the tension applied to the insertion portion of the external power supply wire 21 to the wire connection device 20 can be suppressed, and the external power supply wire 21 is difficult to be removed from the wire connection device 20.
　なお、電源電線固定部品２９と埃侵入抑制カバー３１とを一体に形成してもよい。電源電線固定部品２９と埃侵入抑制カバー３１とを一体にすることにより、部品点数を減らすことができる。また、実施の形態２に係るダクト用換気扇１００は、電源電線固定部品２９を備えていなくてもよい。すなわち、実施の形態２に係るダクト用換気扇１００において、換気扇本体２の外での電線接続装置２０と外部電源電線２１との電気的接続の確実性が低下することを防止する保護部材は、埃侵入抑制カバー３１のみであってもよい。 Note that the power supply wire fixing component 29 and the dust intrusion suppression cover 31 may be integrally formed. By integrating the power supply wire fixing component 29 and the dust intrusion prevention cover 31, the number of components can be reduced. Further, the duct ventilation fan 100 according to the second embodiment may not include the power supply wire fixing component 29. That is, in the duct ventilation fan 100 according to the second embodiment, the protective member that prevents the reliability of the electrical connection between the electric wire connecting device 20 and the external power supply cable 21 outside the ventilation fan main body 2 from being reduced is dust. Only the intrusion suppression cover 31 may be used.
　実施の形態２に係るダクト用換気扇１００は、電線接続装置２０の結線部２０ａに埃が侵入することを抑制する埃侵入抑制カバー３１を備えるため、換気扇本体２の外での電線接続装置２０と外部電源電線２１との電気的な接続の確実性が低下しにくい。 Since the duct ventilation fan 100 according to the second embodiment includes the dust intrusion suppression cover 31 that suppresses dust from entering the connection portion 20a of the wire connection device 20, the wire connection device 20 outside the ventilation fan body 2 and The reliability of the electrical connection with the external power supply wire 21 is unlikely to decrease.
　以上の実施の形態に示した構成は、本発明の内容の一例を示すものであり、別の公知の技術と組み合わせることも可能であるし、本発明の要旨を逸脱しない範囲で、構成の一部を省略、変更することも可能である。 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　送風機、２　換気扇本体、２ａ　フランジ、３　モータ、４　ファン、５　ファンケーシング、６　吸込口、７　スプリング固定部、８　ダクト接続口、９　シャッタ、１０　排気口、１１　電線接続装置カバー、１２　化粧グリル、１３　スプリング、１４　ダクト、１５　制御回路、２０　電線接続装置、２０ａ　結線部、２１　外部電源電線、２２　モータ取付板、２３　モータ電線、２４　解除ボタン、２５　天井、２６　本体埋込穴、２７　ねじ穴、２８　天面、２９　電源電線固定部品、３０　モータ取付板固定ねじ、３１　埃侵入抑制カバー、１００　ダクト用換気扇。 1 Blower, 2 Ventilation fan body, 2a flange, 3 Motor, 4 Fan, 5 Fan casing, 6 Suction port, 7 Spring fixing part, 8 Duct connection port, 9 Shutter, 10 Exhaust port, 11 Wire connection device cover, 12 Cosmetic grill , 13 Spring, 14 Duct, 15 Control circuit, 20 Wire connection device, 20a Connection part, 21 External power supply wire, 22 Motor mounting plate, 23 Motor wire, 24 Release button, 25 Ceiling, 26 Body embedding hole, 27 Screw hole , 28 Top surface, 29 Power supply wire fixing parts, 30 Motor mounting plate fixing screws, 31 Dust intrusion prevention cover, 100 Duct fan.

Claims (7)

  1. 　天面及び底面が開口した箱状であり、側面に排気口が設けられ、前記底面の開口が吸気口をなす換気扇本体と、
    　前記換気扇本体の前記天面を塞ぎ、前記換気扇本体の前記底面の開口を通じて前記換気扇本体に着脱可能なモータ取付板と、
    　前記吸気口から前記換気扇本体の中に流入して前記排気口から流出する気流を形成するファン、及び前記ファンを駆動するモータを有し、前記モータが前記モータ取付板に固定される送風機と、
    　前記モータ取付板の上面に設置され、外部電源電線と前記モータとを電気的に接続する電線接続装置と、
    　前記モータ取付板の上面に設置され、前記換気扇本体の外での前記電線接続装置と前記外部電源電線との電気的接続の確実性が低下することを防止する保護部材とを備え、
    　前記送風機、前記電線接続装置及び前記保護部材は、前記モータ取付板とともに前記換気扇本体の前記底面の開口を通じて、前記換気扇本体に着脱可能であることを特徴とするダクト用換気扇。     It is a box shape with an open top and bottom, an exhaust port is provided on the side, and a ventilation fan body in which the opening on the bottom forms an intake port,
    A motor mounting plate that closes the top surface of the ventilation fan body and is detachable from the ventilation fan body through an opening in the bottom surface of the ventilation fan body;
    A fan that forms an airflow that flows into the ventilation fan body from the intake port and flows out from the exhaust port, and a motor that drives the fan, and the fan that is fixed to the motor mounting plate;
    An electric wire connecting device installed on the upper surface of the motor mounting plate and electrically connecting an external power supply electric wire and the motor;
    A protection member that is installed on the upper surface of the motor mounting plate and prevents the reliability of the electrical connection between the electric wire connecting device and the external power supply wire outside the ventilation fan body, and
    The ventilation fan for a duct, wherein the blower, the wire connecting device, and the protection member can be attached to and detached from the ventilation fan body through the opening of the bottom surface of the ventilation fan body together with the motor mounting plate.
  2. 　前記保護部材は、前記外部電源電線が前記電線接続装置から引き抜かれることを防止する電源電線固定部品であり、前記電源電線固定部品は前記モータ取付板に固定されることを特徴とする請求項１に記載のダクト用換気扇。 The said protection member is a power supply wire fixing component which prevents that the said external power supply wire is pulled out from the said wire connection apparatus, The said power supply wire fixing component is fixed to the said motor mounting plate. The ventilation fan for ducts described in 1.
  3. 　前記保護部材は、前記外部電源電線の結線部に埃が侵入することを防止する埃侵入抑制カバーであり、前記埃侵入抑制カバーはモータ取付板に固定されることを特徴とする請求項１に記載のダクト用換気扇。 2. The protective member according to claim 1, wherein the protective member is a dust intrusion suppression cover that prevents dust from entering a connection portion of the external power supply wire, and the dust intrusion suppression cover is fixed to a motor mounting plate. The ventilation fan for duct as described.
  4. 　前記保護部材は、前記外部電源電線が前記電線接続装置から引き抜かれることを防止する電源電線固定部品と、前記外部電源電線の結線部に埃が侵入することを防止する埃侵入抑制カバーとを含み、前記電源電線固定部品及び前記埃侵入抑制カバーは前記モータ取付板に固定されることを特徴とする請求項１に記載のダクト用換気扇。 The protective member includes a power supply wire fixing component that prevents the external power supply wire from being pulled out from the wire connection device, and a dust intrusion prevention cover that prevents dust from entering the connection portion of the external power supply wire. The ventilation fan according to claim 1, wherein the power supply wire fixing part and the dust intrusion suppression cover are fixed to the motor mounting plate.
  5. 　前記埃侵入抑制カバーは、難燃性又は不燃性であることを特徴とする請求項３又は４に記載のダクト用換気扇。 The duct ventilation fan according to claim 3 or 4, wherein the dust intrusion suppression cover is flame retardant or non-flammable.
  6. 　前記換気扇本体は前記送風機を収容するファンケーシングを備え、前記ファンケーシングは前記モータ取付板に固定されることを特徴とする請求項１から５のいずれか１項に記載のダクト用換気扇。 The duct ventilation fan according to any one of claims 1 to 5, wherein the ventilation fan body includes a fan casing that houses the blower, and the fan casing is fixed to the motor mounting plate.
  7. 　前記送風機を制御する制御回路が、前記モータ取付板に取り付けられることを特徴とする請求項１から５のいずれか１項に記載のダクト用換気扇。 The ventilation fan for a duct according to any one of claims 1 to 5, wherein a control circuit for controlling the blower is attached to the motor mounting plate.
PCT/JP2018/005865 2018-02-20 2018-02-20 Duct ventilator WO2019162986A1 (en)

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