WO2019159359A1 - Duct ventilation fan - Google Patents
Duct ventilation fan Download PDFInfo
- Publication number
- WO2019159359A1 WO2019159359A1 PCT/JP2018/005733 JP2018005733W WO2019159359A1 WO 2019159359 A1 WO2019159359 A1 WO 2019159359A1 JP 2018005733 W JP2018005733 W JP 2018005733W WO 2019159359 A1 WO2019159359 A1 WO 2019159359A1
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- spring
- ventilation fan
- decorative grill
- decorative
- grill
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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 ventilation fan for a duct that supplies or exhausts air through a duct.
- the decorative grille covering the lower surface of the ventilation fan body of the duct ventilation fan is fixed to the ventilation fan body using a torsion spring, also called a decorative grill spring.
- the decorative grille is provided with two portions for attaching the decorative grill spring, and is fixed to the main body of the ventilation fan by two decorative grill springs attached at two locations.
- the ventilating fan for duct disclosed in Patent Document 1 is provided with a protrusion on a portion of the decorative grille where the decorative grill spring is attached, thereby improving the strength of the portion where the decorative grill spring is attached.
- Patent Document 1 prevents the fall of the decorative grille by improving the strength of the part to which the decorative grill spring is attached.
- the part to which the makeup grill spring is attached is broken at two places simultaneously, or the other part is also broken due to the reaction when one of the parts to which the makeup grill spring is attached is broken, and the makeup grill is dropped.
- the present invention has been made in view of the above, and an object of the present invention is to obtain a ventilation fan for a duct in which the fall of the decorative grille is suppressed.
- the present invention includes a ventilation fan body in which an airflow inlet is provided on the lower surface, and a decorative grille that is detachably attached to the ventilation fan body and covers the lower surface of the ventilation fan body And two decorative grill springs for fixing the decorative grill to the ventilation fan body.
- the decorative grill has two spring fixing structures to which each of the two decorative grill springs is fixed, and the two spring fixing structures have different shapes.
- the duct ventilation fan according to the present invention has an effect of suppressing the fall of the decorative grille.
- Sectional drawing of the ventilation fan for ducts which concerns on Embodiment 1 of this invention The bottom view in the state where the decorative grill of the ventilation fan for ducts concerning Embodiment 1 was removed The perspective view of the lower surface side of the decorative grill of the ventilation fan for ducts according to Embodiment 1 The perspective view of the upper surface side of the decorative grill of the ventilation fan for ducts according to Embodiment 1 Sectional drawing of the decorative grill of the ventilation fan for ducts according to Embodiment 1 The enlarged view of the 1st spring fixing component fixing
- FIG. 1 is a cross-sectional view 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 with the decorative grille removed.
- the duct ventilation fan 100 ventilates the ventilation fan body 2 and the duct connection port 8 provided at the side of the ventilation fan body 2 and extending in a right angle direction from the side surface of the ventilation fan body 2 and extending the discharge port to a position communicating with the duct 16. It has a multi-blade blower 1 that is a ventilation drive body that circulates air.
- the ventilation fan body 2 has a fan casing 5 that houses the multi-blade fan 1.
- the duct ventilation fan 100 according to Embodiment 1 is disposed on the back of the ceiling through an opening formed on the ceiling surface, and is installed by inserting the duct connection port 8 from the indoor side into the duct 16 that leads to the outdoors.
- the ventilation fan body 2 has a box shape in which an airflow inlet is provided on the lower surface, and includes a motor 3 on the top surface side.
- An exhaust port is formed on the side surface of the ventilation fan body 2.
- a duct connection port 8 is connected to the exhaust port.
- the multi-blade blower 1 includes a motor 3 and a fan 4 that is plugged into a drive shaft of the motor 3.
- the lower surface of the fan casing 5 is opened to form a suction port 6.
- 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 air sucked from the suction port 6 reaches the exhaust port along the inner wall of the fan casing 5 by the multiblade blower 1.
- FIG. 3 is a perspective view of the lower surface side of the decorative grill of the duct ventilation fan according to Embodiment 1.
- FIG. FIG. 4 is a perspective view of the upper surface side of the decorative grill of the duct ventilation fan according to Embodiment 1.
- FIG. FIG. 5 is a cross-sectional view of the decorative grill of the duct ventilation fan according to the first embodiment.
- the duct ventilation fan 100 includes a decorative grill 10 that is a design component so that internal components such as the fan casing 5 are not visible.
- the decorative grill 10 is detachably attached to the ventilation fan body 2 and covers the lower surface of the ventilation fan body 2.
- the decorative grill 10 includes a lattice portion 101 through which airflow passes and a frame portion 102 that surrounds the lattice portion 101.
- the frame portion 102 is formed with a first spring fixing component fixing portion 12 and a second spring fixing component fixing portion 13.
- the first spring fixing component fixing portion 12 and the second spring fixing component fixing portion 13 are spring fixing structure portions to which a decorative grill spring 11 to be hooked on the decorative grill mounting portion 7 of the fan casing 5 is attached. is there.
- the first spring fixing component fixing portion 12 and the second spring fixing component fixing portion 13 are formed at two locations of the frame portion 102 with the lattice portion 101 interposed therebetween.
- the decorative grill spring 11 is a torsion coil spring in which the arm portion 112 extends from the coil portion 111.
- the decorative grill 10 is fixed to the fan casing 5 by hooking a decorative grill spring 11 on the decorative grill mounting portion 7 included in the fan casing 5. That is, the decorative grill 10 is fixed to the ventilation fan body 2 by the decorative grill spring 11.
- the duct connection port 8 is formed in a stepped outer shape with different diameters. Since the outer shape of the duct connection port 8 has a stepped shape with different diameters, it is possible to cope with the ducts 16 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 16 extends to the outside and is connected to a hood provided on the outside wall of the building to form a ventilation air passage for ventilating the air in the house.
- FIG. 6 is an enlarged view of a first spring fixing component fixing portion of the decorative grill of the duct ventilation fan according to the first embodiment.
- FIG. 7 is a cross-sectional view of a first spring fixing component fixing portion of the decorative grill of the duct ventilation fan according to the first embodiment.
- the first spring fixing component fixing portion 12 includes a pair of opposing wall portions 121 and 122.
- the walls 121 and 122 are formed with holes 121a and 122a through which the spring fixing component 14 can pass.
- FIG. 8 is an enlarged view of the second spring fixing component fixing portion of the decorative grill of the duct ventilation fan according to the first embodiment.
- FIG. 9 is a sectional view of a second spring fixing component fixing portion of the decorative grill of the duct ventilation fan according to the first embodiment.
- the second spring fixing component fixing portion 13 includes a pair of opposing wall portions 131 and 132, and the spring fixing component 14 is provided on the wall portions 131 and 132. Through holes 131a and 132a are formed.
- the coil portion 111 of the decorative grill spring 11 is disposed between the wall portion 121 and the wall portion 122, and the spring fixing component 14 is passed through the holes 121a and 122a of the wall portions 121 and 122, whereby the spring fixing component 14 is provided.
- the decorative grill spring 11 passes through the walls 121 and 122 and is held by the first spring fixing component fixing portion 12.
- the coil portion 111 of the decorative grill spring 11 is disposed between the wall portion 131 and the wall portion 132, and the spring fixing component 14 is passed through the holes 131a and 132a of the wall portions 131 and 132, thereby fixing the spring.
- the component 14 penetrates the walls 131 and 132, and the decorative grill spring 11 is held by the second spring fixing component fixing portion 13.
- the decorative grill 10 is attached to the ventilation fan main body 2 provided with the fan casing 5 by the elastic force of the decorative grill spring 11 by hooking the arm portion 112 of the decorative grill spring 11 on the decorative grill mounting portion 7 provided on the fan casing 5. Fixed.
- the wall portions 121 and 122 of the first spring fixing component fixing portion 12 have a cross-sectional length of 1.4 times that of the wall portions 131 and 132 of the second spring fixing component fixing portion 13 and a cross-sectional width dimension. Is 1.5 times the wall portions 131 and 132 of the second spring fixing component fixing portion 13. Accordingly, the wall portions 121 and 122 of the first spring fixing component fixing portion 12 have a cross-sectional area 2.1 times that of the wall portions 131 and 132 of the second spring fixing component fixing portion 13.
- the first spring fixing component fixing portion 12 has a strength twice or more that of the second spring fixing component fixing portion 13.
- the damage caused by crazing caused by the use of load and chemicals during cleaning is the second spring fixing component. It occurs first in the fixed portion 13. There is a low possibility that the first spring fixing component fixing portion 12 whose strength is twice or more is destroyed at the same time as the second spring fixing component fixing portion 13. Therefore, even if the second spring fixing component fixing portion 13 is broken, the first spring fixing component fixing portion 12 is not broken, so that the fall of the decorative grill 10 can be suppressed. Further, if only the second spring fixing component fixing portion 13 is broken, the decorative grille 10 is fixed to the fan casing 5 only on the first spring fixing component fixing portion 12 side, so that it hangs. It is possible to easily recognize a state in which only the second spring fixing component fixing portion 13 is broken. Therefore, the user can repair the decorative grill 10 before it falls.
- FIG. 10 is a perspective view showing a modification of the duct ventilation fan according to the first embodiment.
- FIG. 11 is a cross-sectional view showing a modification of the duct ventilation fan according to Embodiment 1.
- the spring fixing component 14 is held by the first spring fixing component fixing portion 12 and the second spring fixing component fixing portion 13 to fix the decorative grill spring 11 to the decorative grill 10.
- the decorative grill spring 11 may be held by the spring fixing portion 15 formed integrally with the decorative grill 10 without using the spring fixing component 14.
- the spring fixing portions 15 forming the spring fixing structure portion are formed at two locations with the lattice portion 101 interposed therebetween.
- the spring fixing portion 15 is a protrusion provided with a hook 151 that can penetrate the coil portion 111.
- the decorative grill spring 11 is fixed to the decorative grill 10 by engaging with the hook 151 of the spring fixing portion 15.
- the two spring fixing portions 15 are prevented from being damaged at the same time, and the decorative grill 10 is dropped. Can be suppressed.
- 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)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
A duct ventilation fan (100) comprises: a ventilation fan main body (2) on the bottom surface of which is provided an air current suction opening; a cosmetic grill (10) detachably mounted on the ventilation fan main body and covering the bottom surface of the ventilation fan main body (2); and two cosmetic grill springs (11) that secure the cosmetic grill (10) to the ventilation fan main body (2), the cosmetic grill (10) having a first-spring-securing component securing part and a second-spring-securing component securing part, which are structure parts for securing the springs to which the two cosmetic grill springs (11), respectively, are fixed, the first-spring-securing component securing part and the second-spring-securing component securing part having mutually different shapes.
Description
本発明は、ダクトを通じて給気又は排気を行うダクト用換気扇に関する。
The present invention relates to a ventilation fan for a duct that supplies or exhausts air through a duct.
ダクト用換気扇の換気扇本体の下面を覆う化粧グリルは、化粧グリルばねとも称されるねじりばねを用いて換気扇本体に固定される。化粧グリルは、化粧グリルばねを取り付ける部分が２箇所に設けられ、２箇所に取り付けられた二つの化粧グリルばねで換気扇本体に固定される。
The decorative grille covering the lower surface of the ventilation fan body of the duct ventilation fan is fixed to the ventilation fan body using a torsion spring, also called a decorative grill spring. The decorative grille is provided with two portions for attaching the decorative grill spring, and is fixed to the main body of the ventilation fan by two decorative grill springs attached at two locations.
特許文献１に開示されるダクト用換気扇は、化粧グリルの化粧グリルばねを取り付ける部分に突起を設け、化粧グリルばねを取り付ける部分の強度を向上させている。
The ventilating fan for duct disclosed in Patent Document 1 is provided with a protrusion on a portion of the decorative grille where the decorative grill spring is attached, thereby improving the strength of the portion where the decorative grill spring is attached.
特許文献１に開示されたダクト用換気扇は、化粧グリルばねを取り付ける部分の強度を向上させることで、化粧グリルの落下を防止しているが、清掃時に使用する薬品によって化粧グリルばねを取り付ける部分に劣化が発生した場合、粧グリルばねを取り付ける部分が２箇所同時に壊れたり、化粧グリルばねを取り付ける部分の一方が壊れた際の反動で他方も壊れ、化粧グリルが落下してしまう可能性がある。
The duct ventilation fan disclosed in Patent Document 1 prevents the fall of the decorative grille by improving the strength of the part to which the decorative grill spring is attached. When the deterioration occurs, there is a possibility that the part to which the makeup grill spring is attached is broken at two places simultaneously, or the other part is also broken due to the reaction when one of the parts to which the makeup grill spring is attached is broken, and the makeup grill is dropped.
本発明は、上記に鑑みてなされたものであって、化粧グリルの落下を抑制したダクト用換気扇を得ることを目的とする。
The present invention has been made in view of the above, and an object of the present invention is to obtain a ventilation fan for a duct in which the fall of the decorative grille is suppressed.
上述した課題を解決し、目的を達成するために、本発明は、気流の吸気口が下面に設けられた換気扇本体と、換気扇本体に着脱可能に装着されて、換気扇本体の下面を覆う化粧グリルと、化粧グリルを換気扇本体に固定する二つの化粧グリルばねとを備える。化粧グリルは、二つの化粧グリルばねの各々が固定される二つのばね固定用構造部を有し、二つのばね固定用構造部は、互いに異なる形状である。
In order to solve the above-described problems and achieve the object, the present invention includes a ventilation fan body in which an airflow inlet is provided on the lower surface, and a decorative grille that is detachably attached to the ventilation fan body and covers the lower surface of the ventilation fan body And two decorative grill springs for fixing the decorative grill to the ventilation fan body. The decorative grill has two spring fixing structures to which each of the two decorative grill springs is fixed, and the two spring fixing structures have different shapes.
本発明に係るダクト用換気扇は、化粧グリルの落下を抑制できるという効果を奏する。
The duct ventilation fan according to the present invention has an effect of suppressing the fall of the decorative grille.
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外した状態での下面図である。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吐出口をダクト１６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多翼式送風機１とを有している。換気扇本体２は、多翼式送風機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、天井面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１６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 of a duct ventilation fan according toEmbodiment 1 of the present invention. FIG. 2 is a bottom view of the duct ventilation fan according to Embodiment 1 with the decorative grille removed. The duct ventilation fan 100 ventilates the ventilation fan body 2 and the duct connection port 8 provided at the side of the ventilation fan body 2 and extending in a right angle direction from the side surface of the ventilation fan body 2 and extending the discharge port to a position communicating with the duct 16. It has a multi-blade blower 1 that is a ventilation drive body that circulates air. The ventilation fan body 2 has a fan casing 5 that houses the multi-blade fan 1. The duct ventilation fan 100 according to Embodiment 1 is disposed on the back of the ceiling through an opening formed on the ceiling surface, and is installed by inserting the duct connection port 8 from the indoor side into the duct 16 that leads to the outdoors.
図１は、本発明の実施の形態１に係るダクト用換気扇の断面図である。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外した状態での下面図である。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吐出口をダクト１６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多翼式送風機１とを有している。換気扇本体２は、多翼式送風機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、天井面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１６に室内側からダクト接続口８を挿入して設置される。
FIG. 1 is a cross-sectional view of a duct ventilation fan according to
換気扇本体２は、下面に気流の吸気口が設けられた箱型であり、天面側にモータ３を備えている。換気扇本体２の側面には、排気口が形成されている。排気口にはダクト接続口８が接続される。
The ventilation fan body 2 has a box shape in which an airflow inlet is provided on the lower surface, and includes a motor 3 on the top surface side. An exhaust port is formed on the side surface of the ventilation fan body 2. A duct connection port 8 is connected to the exhaust port.
多翼式送風機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。
The multi-blade blower 1 includes a motor 3 and a fan 4 that is plugged into a drive shaft of the motor 3.
ファンケーシング５は、下面が開放されて吸込口６が形成されている。モータ３のシャフトの回転運動をファン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多翼式送風機１によってファンケーシング５の内壁に沿って排気口に至る排気風路を形成している。
The lower surface of the fan casing 5 is opened to form a suction port 6. By transmitting the rotational movement of the shaft of the motor 3 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 air sucked from the suction port 6 reaches the exhaust port along the inner wall of the fan casing 5 by the multiblade blower 1.
図３は、実施の形態１に係るダクト用換気扇の化粧グリルの下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化粧グリルの上面側の斜視図である。図５は、実施の形態１に係るダクト用換気扇の化粧グリルの断面図である。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ないようにするため意匠部品である化粧グリル１０を備える。化粧グリル１０は、換気扇本体２に着脱可能に装着されて、換気扇本体２の下面を覆う。化粧グリル１０は、気流が通過する格子部１０１と、格子部１０１を囲む枠部１０２とを有する。枠部１０２には、第１のばね固定用部品固定部１２及び第２のばね固定用部品固定部１３が形成されている。第１のばね固定用部品固定部１２及び第２のばね固定用部品固定部１３は、ファンケーシング５の化粧グリル取付部７に引掛けるための化粧グリルばね１１が取り付けられるばね固定用構造部である。第１のばね固定用部品固定部１２及び第２のばね固定用部品固定部１３は、格子部１０１を挟んで枠部１０２の二箇所に形成されている。
FIG. 3 is a perspective view of the lower surface side of the decorative grill of the duct ventilation fan according to Embodiment 1. FIG. FIG. 4 is a perspective view of the upper surface side of the decorative grill of the duct ventilation fan according to Embodiment 1. FIG. FIG. 5 is a cross-sectional view of the decorative grill of the duct ventilation fan according to the first embodiment. The duct ventilation fan 100 includes a decorative grill 10 that is a design component so that internal components such as the fan casing 5 are not visible. The decorative grill 10 is detachably attached to the ventilation fan body 2 and covers the lower surface of the ventilation fan body 2. The decorative grill 10 includes a lattice portion 101 through which airflow passes and a frame portion 102 that surrounds the lattice portion 101. The frame portion 102 is formed with a first spring fixing component fixing portion 12 and a second spring fixing component fixing portion 13. The first spring fixing component fixing portion 12 and the second spring fixing component fixing portion 13 are spring fixing structure portions to which a decorative grill spring 11 to be hooked on the decorative grill mounting portion 7 of the fan casing 5 is attached. is there. The first spring fixing component fixing portion 12 and the second spring fixing component fixing portion 13 are formed at two locations of the frame portion 102 with the lattice portion 101 interposed therebetween.
化粧グリルばね１１は、コイル部１１１から腕部１１２が延びるねじりコイルばねである。化粧グリル１０は、ファンケーシング５が備える化粧グリル取付部７に化粧グリルばね１１を引掛けることにより、ファンケーシング５に固定される。すなわち、化粧グリル１０は、化粧グリルばね１１によって換気扇本体２に固定される。
The decorative grill spring 11 is a torsion coil spring in which the arm portion 112 extends from the coil portion 111. The decorative grill 10 is fixed to the fan casing 5 by hooking a decorative grill spring 11 on the decorative grill mounting portion 7 included in the fan casing 5. That is, the decorative grill 10 is fixed to the ventilation fan body 2 by the decorative grill spring 11.
ダクト接続口８は、径の異なる段状の外形に形成されている。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１６に対応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 is formed in a stepped outer shape with different diameters. Since the outer shape of the duct connection port 8 has a stepped shape with different diameters, it is possible to cope with the ducts 16 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１６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 16 extends to the outside and is connected to a hood provided on the outside wall of the building to form a ventilation air passage for ventilating the air in the house.
図６は、実施の形態１に係るダクト用換気扇の化粧グリルの第１のばね固定用部品固定部の拡大図である。図７は、実施の形態１に係るダクト用換気扇の化粧グリルの第１のばね固定用部品固定部の断面図である。図６及び図７に示すように、第１のばね固定用部品固定部１２は、対向する一対の壁部１２１，１２２を備えている。壁部１２１，１２２には、ばね固定用部品１４が貫通可能な穴１２１ａ，１２２ａが形成されている。
FIG. 6 is an enlarged view of a first spring fixing component fixing portion of the decorative grill of the duct ventilation fan according to the first embodiment. FIG. 7 is a cross-sectional view of a first spring fixing component fixing portion of the decorative grill of the duct ventilation fan according to the first embodiment. As shown in FIGS. 6 and 7, the first spring fixing component fixing portion 12 includes a pair of opposing wall portions 121 and 122. The walls 121 and 122 are formed with holes 121a and 122a through which the spring fixing component 14 can pass.
図８は、実施の形態１に係るダクト用換気扇の化粧グリルの第２のばね固定用部品固定部の拡大図である。図９は、実施の形態１に係るダクト用換気扇の化粧グリルの第２のばね固定用部品固定部の断面図である。図８及び図９に示すように、第２のばね固定用部品固定部１３は、対向する一対の壁部１３１，１３２を備えている、壁部１３１，１３２には、ばね固定用部品１４が貫通可能な穴１３１ａ，１３２ａが形成されている。
FIG. 8 is an enlarged view of the second spring fixing component fixing portion of the decorative grill of the duct ventilation fan according to the first embodiment. FIG. 9 is a sectional view of a second spring fixing component fixing portion of the decorative grill of the duct ventilation fan according to the first embodiment. As shown in FIGS. 8 and 9, the second spring fixing component fixing portion 13 includes a pair of opposing wall portions 131 and 132, and the spring fixing component 14 is provided on the wall portions 131 and 132. Through holes 131a and 132a are formed.
壁部１２１と壁部１２２との間に化粧グリルばね１１のコイル部１１１を配置し、ばね固定用部品１４を壁部１２１，１２２の穴１２１ａ，１２２ａに通すことで、ばね固定用部品１４が壁部１２１，１２２を貫通し、化粧グリルばね１１は、第１のばね固定用部品固定部１２に保持される。同様に、壁部１３１と壁部１３２との間に化粧グリルばね１１のコイル部１１１を配置し、ばね固定用部品１４を壁部１３１，１３２の穴１３１ａ，１３２ａに通すことで、ばね固定用部品１４が壁部１３１，１３２を貫通し、化粧グリルばね１１は、第２のばね固定用部品固定部１３に保持される。化粧グリル１０は、ファンケーシング５に設けられた化粧グリル取付部７に化粧グリルばね１１の腕部１１２を引掛けることにより、化粧グリルばね１１の弾性力によりファンケーシング５を備えた換気扇本体２に固定される。
The coil portion 111 of the decorative grill spring 11 is disposed between the wall portion 121 and the wall portion 122, and the spring fixing component 14 is passed through the holes 121a and 122a of the wall portions 121 and 122, whereby the spring fixing component 14 is provided. The decorative grill spring 11 passes through the walls 121 and 122 and is held by the first spring fixing component fixing portion 12. Similarly, the coil portion 111 of the decorative grill spring 11 is disposed between the wall portion 131 and the wall portion 132, and the spring fixing component 14 is passed through the holes 131a and 132a of the wall portions 131 and 132, thereby fixing the spring. The component 14 penetrates the walls 131 and 132, and the decorative grill spring 11 is held by the second spring fixing component fixing portion 13. The decorative grill 10 is attached to the ventilation fan main body 2 provided with the fan casing 5 by the elastic force of the decorative grill spring 11 by hooking the arm portion 112 of the decorative grill spring 11 on the decorative grill mounting portion 7 provided on the fan casing 5. Fixed.
第１のばね固定用部品固定部１２の壁部１２１，１２２は、断面の長さ寸法が第２のばね固定用部品固定部１３の壁部１３１，１３２の１．４倍、断面の幅寸法が第２のばね固定用部品固定部１３の壁部１３１，１３２の１．５倍とされている。したがって、第１のばね固定用部品固定部１２の壁部１２１，１２２は、第２のばね固定用部品固定部１３の壁部１３１，１３２の２．１倍の断面積を有しているため、第１のばね固定用部品固定部１２は、第２のばね固定用部品固定部１３の２倍以上の強度を備えている。
The wall portions 121 and 122 of the first spring fixing component fixing portion 12 have a cross-sectional length of 1.4 times that of the wall portions 131 and 132 of the second spring fixing component fixing portion 13 and a cross-sectional width dimension. Is 1.5 times the wall portions 131 and 132 of the second spring fixing component fixing portion 13. Accordingly, the wall portions 121 and 122 of the first spring fixing component fixing portion 12 have a cross-sectional area 2.1 times that of the wall portions 131 and 132 of the second spring fixing component fixing portion 13. The first spring fixing component fixing portion 12 has a strength twice or more that of the second spring fixing component fixing portion 13.
上記のように化粧グリル１０を二つの化粧グリルばね１１でファンケーシング５に固定している場合、清掃時の荷重及び薬品の使用によって発生するクレージングに起因する破壊は、第２のばね固定用部品固定部１３の方で先に発生する。強度が２倍以上である第１のばね固定用部品固定部１２は、第２のばね固定用部品固定部１３と同時に破壊される可能性は低い。したがって、第２のばね固定用部品固定部１３が壊れても、第１のばね固定用部品固定部１２が壊れないため、化粧グリル１０の落下を抑制することができる。また、第２のばね固定用部品固定部１３だけが壊れると、化粧グリル１０は、第１のばね固定用部品固定部１２側だけでファンケーシング５に固定されてぶら下がった状態となるため、第２のばね固定用部品固定部１３だけが壊れた状態を容易に認識できる。したがってユーザは、化粧グリル１０が落下する前に修理することが可能となる。
When the decorative grill 10 is fixed to the fan casing 5 with the two decorative grill springs 11 as described above, the damage caused by crazing caused by the use of load and chemicals during cleaning is the second spring fixing component. It occurs first in the fixed portion 13. There is a low possibility that the first spring fixing component fixing portion 12 whose strength is twice or more is destroyed at the same time as the second spring fixing component fixing portion 13. Therefore, even if the second spring fixing component fixing portion 13 is broken, the first spring fixing component fixing portion 12 is not broken, so that the fall of the decorative grill 10 can be suppressed. Further, if only the second spring fixing component fixing portion 13 is broken, the decorative grille 10 is fixed to the fan casing 5 only on the first spring fixing component fixing portion 12 side, so that it hangs. It is possible to easily recognize a state in which only the second spring fixing component fixing portion 13 is broken. Therefore, the user can repair the decorative grill 10 before it falls.
図１０は、実施の形態１に係るダクト用換気扇の変形例を示す斜視図である。図１１は、実施の形態１に係るダクト用換気扇の変形例を示す断面図である。上記の説明ではばね固定用部品１４を第１のばね固定用部品固定部１２及び第２のばね固定用部品固定部１３に保持させて化粧グリルばね１１を化粧グリル１０に固定しているが、図１０に示すように、ばね固定用部品１４を使用せず、化粧グリル１０に一体に形成されたばね固定部１５で化粧グリルばね１１を保持してもよい。ばね固定構造部をなすばね固定部１５は、格子部１０１を挟んで二箇所に形成される。ばね固定部１５は、コイル部１１１を貫通可能なフック１５１を備えた突起である。化粧グリルばね１１は、ばね固定部１５のフック１５１に係合して化粧グリル１０に固定される。二つのばね固定部１５で突起の断面積を異ならせて、二つのばね固定部１５の強度を異ならせることにより、二つのばね固定部１５が同時に破損することを防止し、化粧グリル１０の落下を抑制することができる。
FIG. 10 is a perspective view showing a modification of the duct ventilation fan according to the first embodiment. FIG. 11 is a cross-sectional view showing a modification of the duct ventilation fan according to Embodiment 1. FIG. In the above description, the spring fixing component 14 is held by the first spring fixing component fixing portion 12 and the second spring fixing component fixing portion 13 to fix the decorative grill spring 11 to the decorative grill 10. As shown in FIG. 10, the decorative grill spring 11 may be held by the spring fixing portion 15 formed integrally with the decorative grill 10 without using the spring fixing component 14. The spring fixing portions 15 forming the spring fixing structure portion are formed at two locations with the lattice portion 101 interposed therebetween. The spring fixing portion 15 is a protrusion provided with a hook 151 that can penetrate the coil portion 111. The decorative grill spring 11 is fixed to the decorative grill 10 by engaging with the hook 151 of the spring fixing portion 15. By making the cross-sectional areas of the projections different between the two spring fixing portions 15 and making the strengths of the two spring fixing portions 15 different, the two spring fixing portions 15 are prevented from being damaged at the same time, and the decorative grill 10 is dropped. Can be suppressed.
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 多翼式送風機、２ 換気扇本体、３ モータ、４ ファン、５ ファンケーシング、６ 吸込口、７ 化粧グリル取付部、８ ダクト接続口、９ シャッタ、１０ 化粧グリル、１１ 化粧グリルばね、１２ 第１のばね固定用部品固定部、１３ 第２のばね固定用部品固定部、１４ ばね固定用部品、１５ ばね固定部、１６ ダクト、１００ ダクト用換気扇、１０１ 格子部、１０２ 枠部、１１１ コイル部、１１２ 腕部、１２１，１２２，１３１，１３２ 壁部、１２１ａ，１２２ａ，１３１ａ，１３２ａ 穴、１５１ フック。
1 Multi-blade type blower, 2 Ventilation fan body, 3 Motor, 4 Fan, 5 Fan casing, 6 Suction port, 7 Cosmetic grill mounting part, 8 Duct connection port, 9 Shutter, 10 Cosmetic grill, 11 Cosmetic grill spring, 12 1st Spring fixing part fixing part, 13 second spring fixing part fixing part, 14 spring fixing part, 15 spring fixing part, 16 duct, 100 duct ventilation fan, 101 lattice part, 102 frame part, 111 coil part, 112 arm part, 121, 122, 131, 132 wall part, 121a, 122a, 131a, 132a hole, 151 hook.
Claims (4)
- 気流の吸気口が下面に設けられた換気扇本体と、
前記換気扇本体に着脱可能に装着されて、前記換気扇本体の下面を覆う化粧グリルと、
前記化粧グリルを前記換気扇本体に固定する二つの化粧グリルばねとを備え、
前記化粧グリルは、二つの前記化粧グリルばねの各々が固定される二つのばね固定用構造部を有し、
二つの前記ばね固定用構造部は、互いに異なる形状であることを特徴とするダクト用換気扇。 A ventilation fan body with airflow inlets on the bottom;
A decorative grill that is detachably attached to the ventilation fan body and covers the lower surface of the ventilation fan body,
Two decorative grill springs for fixing the decorative grill to the ventilation fan body,
The decorative grill has two spring fixing structures to which each of the two decorative grill springs is fixed,
The two ventilating structural fans have different shapes from each other. - 前記化粧グリルばねは、コイル部から腕部が延びるねじりコイルばねであり、
前記ばね固定用構造部は、前記コイル部を挿入可能な大きさの隙間を空けて対向し、穴が形成された一対の壁部を有し、
前記化粧グリルばねは、前記一対の壁部の間に配置された前記コイル部に、前記穴に挿入されて前記一対の壁部を貫通するばね固定用部品が通されて、前記化粧グリルに固定されており、
前記一対の壁部の断面積は、二つの前記ばね固定用構造部で互いに異な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 decorative grill spring is a torsion coil spring in which an arm portion extends from a coil portion,
The structure for fixing the spring has a pair of wall portions that are opposed to each other with a gap of a size that allows the coil portion to be inserted, and in which holes are formed.
The decorative grill spring is fixed to the decorative grille by passing a spring fixing component that is inserted into the hole and passes through the pair of wall portions through the coil portion disposed between the pair of wall portions. Has been
2. The duct ventilation fan according to claim 1, wherein cross-sectional areas of the pair of wall portions are different from each other in the two spring fixing structure portions. - 前記化粧グリルばねは、コイル部から腕部が延びるねじりコイルばねであり、
前記ばね固定用構造部は、前記コイル部を貫通可能なフックを備えた突起を有し、
前記化粧グリルばねは、前記突起の前記フックに係合して前記化粧グリルに固定されており、
前記突起の断面積は、二つの前記ばね固定用構造部で互いに異な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 decorative grill spring is a torsion coil spring in which an arm portion extends from a coil portion,
The spring fixing structure portion has a protrusion provided with a hook that can penetrate the coil portion,
The decorative grill spring is fixed to the decorative grille by engaging with the hook of the protrusion,
The ventilating fan for a duct according to claim 1, wherein the cross-sectional areas of the protrusions are different from each other in the two spring fixing structure portions. - 二つの前記ばね固定用構造部の一方の強度は、二つの前記ばね固定用構造部の他方の強度の２倍以上であ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 duct ventilation fan according to claim 1, wherein the strength of one of the two spring fixing structural portions is twice or more the strength of the other of the two spring fixing structural portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/005733 WO2019159359A1 (en) | 2018-02-19 | 2018-02-19 | Duct ventilation fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/005733 WO2019159359A1 (en) | 2018-02-19 | 2018-02-19 | Duct ventilation fan |
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| WO2019159359A1 true WO2019159359A1 (en) | 2019-08-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007003019A (en) * | 2005-06-21 | 2007-01-11 | Matsushita Electric Ind Co Ltd | Panel structure |
| JP2007271179A (en) * | 2006-03-31 | 2007-10-18 | Mitsubishi Electric Corp | Decorative grille for ventilating device |
| JP2009186059A (en) * | 2008-02-05 | 2009-08-20 | Panasonic Corp | Ventilating device |
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