WO2022244203A1 - 扇風機 - Google Patents
扇風機 Download PDFInfo
- Publication number
- WO2022244203A1 WO2022244203A1 PCT/JP2021/019220 JP2021019220W WO2022244203A1 WO 2022244203 A1 WO2022244203 A1 WO 2022244203A1 JP 2021019220 W JP2021019220 W JP 2021019220W WO 2022244203 A1 WO2022244203 A1 WO 2022244203A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fan
- guard
- clip
- electric fan
- electric
- Prior art date
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims 1
- 238000007664 blowing Methods 0.000 abstract description 17
- 238000010586 diagram Methods 0.000 description 8
- 238000004378 air conditioning Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
Definitions
- the present disclosure relates to an electric fan capable of changing the orientation of the air blower in the vertical direction.
- a fan having a blower section equipped with an electric motor and a fan, a strut that supports the blower, and a pedestal that supports the strut has a wire attached to the blower to prevent the human body from touching the fan.
- a guard is provided to cover the fan.
- Patent Literature 1 discloses an electric fan provided with a drive motor that serves as a drive source for vertically swinging a blower.
- the guard may deform, causing the fan to collide with the guard and damage the fan.
- the present disclosure has been made in view of the above, and an object thereof is to obtain an electric fan that suppresses damage to the fan due to collision between the fan and the guard.
- the electric fan according to the present disclosure includes a blower section having a fan that forms an airflow, a strut section that supports the blower section so that it can rotate vertically, and a pedestal for supporting the
- the blower unit includes a guard that has a rear portion that covers the fan from behind with a plurality of radially arranged wires and a side portion that covers the fan from the side with a plurality of wires that are arranged parallel to the rotation axis of the fan; It has a grill that covers from the front and a protective member that has an annular shape with an outer diameter equal to or smaller than the diameter of the fan and is coaxial with the fan and installed on the back.
- the electric fan according to the present disclosure has the effect of suppressing damage to the fan due to collision between the fan and the guard.
- FIG. 1 is a perspective view of an electric fan according to Embodiment 1
- FIG. 2 is a perspective view of the air blower viewed from the rear side of the electric fan according to Embodiment 1.
- FIG. FIG. 2 is a front view of the fan according to Embodiment 1 with the grille of the air blowing section removed;
- FIG. 2 is a perspective view of the air blower viewed from the front side of the electric fan according to Embodiment 1.
- FIG. 2 is an enlarged view of the air blowing unit facing right above the electric fan according to Embodiment 1.
- FIG. 10 is a schematic diagram showing a state in which the electric fan according to Embodiment 2 falls over with the air blowing portion directed upward, and the portion not engaged with the clip collides with the floor; The figure which shows the dimensional relationship between the fan and guard ring of the electric fan which concerns on Embodiment 2.
- FIG. 1 is a perspective view of an electric fan according to Embodiment 1.
- the electric fan 20 according to Embodiment 1 includes a blower section 100 having a fan 1 that forms an airflow, a support section 101 that supports the blower section 100 so as to be rotatable in the vertical direction, and a pedestal section that supports the support section 101. 102.
- the blower unit 100 includes a motor unit 4 having a drive motor as a drive source for vertical swinging, a guard 10 that covers the fan 1 from the sides and rear with wires, and a grille 7 that covers the fan 1 from the front. ing.
- the pedestal portion 102 is provided with an operation portion 102a on the front portion of the upper surface thereof.
- the operation unit 102a is disk-shaped, and the space occupied is unified regardless of which direction the operation unit 102a is installed.
- FIG. 2 is a perspective view of the air blower viewed from the rear side of the electric fan according to Embodiment 1.
- FIG. FIG. 3 is a front view of the fan according to Embodiment 1 with the grille of the blower section removed. Arrows in FIG. 3 indicate the rotation direction of the fan 1 .
- the fan 1 has a plurality of blades 1a.
- the guard 10 has a rear portion 2 that covers the fan 1 from behind with a plurality of radially arranged wires, and a side portion 9 that covers the fan 1 from the sides with a plurality of wires arranged parallel to the rotation axis of the fan 1. , and a guard ring 3 that reinforces the back portion 2 and suppresses deformation of the gaps between the wires.
- the wire of the back surface portion 2 and the wire of the side surface portion 9 are connected, but the wire of the back surface portion 2 and the wire of the side surface portion 9 may not be connected.
- the guard ring 3 has an annular shape with an outer diameter equal to or smaller than the diameter of the fan 1 and is installed on the rear surface portion 2 coaxially with the fan 1 .
- the diameter of guard ring 3 is approximately the same as the diameter of fan 1 .
- the guard ring 3 is a protective member that prevents the tip portion 6 of the blade 1a from entering between the wires of the back surface portion 2. As shown in FIG.
- FIG. 4 is a perspective view of the air blower viewed from the front side of the electric fan according to Embodiment 1.
- FIG. The grill 7 is provided with a clip 8 for fixing the grill 7 to the guard 10.
- - ⁇ Clips 8 secure grille 7 to guard 10 by engaging side portions 9 .
- the clip 8 has a curved plate shape along the side portion 9 .
- the amount of projection of the clip 8 from the side portion 9 is smaller than the distance between the blade 1a and the side portion 9. As shown in FIG.
- FIG. 5 is a diagram showing a state in which the electric fan according to Embodiment 1 is overturned with the air blowing portion directed upward.
- FIG. 6 is an enlarged view of the air blowing part of the electric fan according to Embodiment 1, which is oriented right above.
- the guard 10 collides with the floor surface 30 . Since the pedestal 102 is disc-shaped, the fan 20 can fall in any direction. Therefore, when the fan 20 falls down with the air blower 100 facing straight up, the part of the guard 10 with which the clip 8 is engaged collides with the floor surface 30, and the clip 8 is engaged. In some cases, the non-removed portion collides with the floor surface 30. - ⁇
- the rear portion 2 of the guard 10 When the electric fan 20 overturns, the rear portion 2 of the guard 10 may be deformed by the impact, the positional relationship between the fan 1 and the rear portion 2 may change, and the tips 6 of the blades 1a may come into contact with the rear portion 2. .
- the wires of the rear surface portion 2 radially arranged are bent toward the pedestal portion 102 side due to the impact at the time of falling, the wires pass through the original position and bend toward the fan 1 side when restoring, so that the blades 1a
- the tip 6 of the blade 1a enters between the wires, and the tip 6 of the blade 1a comes into contact with the wire, and the fan 1 may be damaged.
- the electric fan 20 according to Embodiment 1 since the outer diameter of the guard ring 3 is equal to or less than the diameter of the fan 1, the tips 6 of the blades 1a enter between the wires of the back surface portion 2 bent toward the fan 1 side.
- the guard ring 3 installed on the back portion 2 prevents this. Therefore, the electric fan 20 according to Embodiment 1 can prevent the tip portions 6 of the blades 1a from coming into contact with the wires of the back surface portion 2 and the fan 1 from being damaged.
- the guard ring 3 Since the guard ring 3 has a continuous annular shape, even if the tip 6 of the blade 1a approaches the wire at any part of the back surface portion 2, the tip 6 of the blade 1a abuts against the guard ring 3, It does not enter between the wires of the part 2.
- FIG. 7 is a schematic diagram showing a state in which the electric fan according to Embodiment 1 is overturned with the air blowing portion directed upward, and the clip-engaged portion collides with the floor surface.
- the portion where the clip 8 is engaged collides with the floor surface 30 the side surface portion 9 is deformed due to the falling impact, the relative positional relationship between the fan 1 and the side surface portion 9 changes, and the rear end of the blade 1a changes.
- the portion 5 may come into contact with the side portion 9 .
- the amount of protrusion of the clip 8 increases, the amount of deformation of the side surface portion 9 increases, and the rear end portion 5 of the blade 1a and the side surface portion 9 are more likely to come into contact with each other.
- the clip 8 since the clip 8 has a curved plate shape along the side portion 9, the amount of deformation of the side portion 9 when the portion where the clip 8 is engaged collides with the floor surface 30 is Therefore, damage to the rear end portion 5 of the fan 1 can be suppressed.
- the clip 8 is engaged. Damage to the fan 1 can be prevented even if the part not covered collides with the floor surface 30. - ⁇
- the electric fan 20 according to the first embodiment prevents the tip portion 6 of the fan 1 from being damaged by the guard ring 3 having an outer diameter equal to or less than the diameter of the fan 1, and the clip having the same protrusion amount at the hinge portion and the engaging portion. 8 prevents the rear end portion 5 of the fan 1 from being damaged. Therefore, the parts other than the guard ring 3 and the clip 8 can be the parts of the existing electric fan, and the manufacturing cost can be reduced. Moreover, since it is not necessary to change the appearance of the existing electric fan significantly, it is possible to prevent deterioration of the design by preventing damage to the fan 1 .
- FIG. 8 is a diagram showing fan heights of the fan according to Embodiment 1.
- FIG. FIG. 9 is a diagram showing the guard outer diameter, the guard gap, and the clip height of the electric fan according to Embodiment 1.
- the fan height Hf is about 600 mm to 1000 mm.
- a guard outer diameter Dg is about 400 mm.
- the clip height Tc is approximately 4 mm.
- the main body weight is about 5 kg.
- a guard gap Gg is a gap between the fan 1 and the side portion 9 of the guard 10 .
- the distance between the fan 1 and the side portion 9 of the guard 10 is approximately 15 mm.
- the clip height Tc be smaller than the guard gap Gg. Considering the change in the relative position between the fan 1 and the guard 10 due to the deformation of the guard 10 as a whole, it is desirable that the clip height Tc be 1/3 or less of the guard gap Gg.
- FIG. 10 is a schematic diagram showing a state in which the electric fan according to Embodiment 2 overturns with the air blowing portion directed upward, and the portion not engaged with the clip collides with the floor.
- the arrows in FIG. 10 indicate the directions in which the fan 1 tilts due to the impact of falling.
- the tip part 6 of the fan 1 collides with a part of the back part 2 closer to the rotation axis C of the fan 1 than the part corresponding to the outer edge of the fan 1. ⁇
- FIG. 11 is a diagram showing the dimensional relationship between the fan and the guard ring of the electric fan according to the second embodiment.
- the diameter D2 of the guard ring 3 is slightly smaller than the diameter D1 of the fan 1.
- the radius of the fan 1 is R1
- the radius of the guard ring 3 is R2
- the distance between the tip 6 of the fan 1 and the guard ring 3 is In the case of W, the relationship is R2>R1-W.
- the amount of displacement of the tip 6 of the blade 1a toward the rotation axis C due to the tilt of the fan 1 due to the impact of overturning does not exceed the distance W between the tip 6 of the fan 1 and the guard ring 3. Therefore, if the radius R2 of the guard ring 3 is made larger than the size obtained by subtracting the interval W from the radius R1 of the fan 1, and "R2>R1-W" is satisfied, the fan 1 is tilted due to the impact at the time of overturning. The tip portion 6 of the blade 1a can be brought into contact with the guard ring 3 immediately.
- the electric fan 20 according to the second embodiment can prevent the tips 6 of the blades 1a from entering between the wires of the back surface 2 even when the fan 1 tilts due to the impact of falling.
- FIG. 12 is a front view of the fan according to Embodiment 3 with the grill of the blowing section removed.
- Fan 20 according to Embodiment 3 includes anti-collision ring 11 .
- An anti-collision ring 11 is attached to the rear portion 2 of the guard 10 .
- the diameter of anti-collision ring 11 is larger than the diameter of fan 1 .
- the radius of the anti-collision ring 11 is larger than the radius of the fan 1 minus the distance between the tip 6 of the blade 1a and the rear surface 2.
- Guard ring 3 is installed at a position closer to rotation axis C of fan 1 than fan 20 according to the first embodiment. Others are the same as the electric fan 20 according to the first embodiment.
- the anti-collision ring 11 prevents the tip portions 6 of the blades 1a from entering between the wires of the back portion 2. Therefore, similarly to the electric fan 20 according to the first embodiment, it is possible to prevent the blades 1a from coming into contact with the wires of the back surface portion 2 and the fan 1 from being damaged.
- the configuration shown in the above embodiment shows an example of the contents, and it is possible to combine it with another known technique, and part of the configuration is omitted or changed without departing from the scope. is also possible.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
図1は、実施の形態1に係る扇風機の斜視図である。実施の形態1に係る扇風機20は、気流を形成するファン1を備えた送風部100と、送風部100を上下方向に回動可能に支持する支柱部101と、支柱部101を支持する台座部102とを有する。送風部100は、上下首振り動作の駆動源である駆動モータを備えたモータ部4と、ワイヤでファン1を側方及び後方から覆うガード10と、ファン1を前方から覆うグリル7とを備えている。台座部102は、上面前部に操作部102aが設けられている。操作部102aは、円盤状とされており、操作部102aをどちらに向けて設置するかによらず、占有スペースが一体となっている。
実施の形態2に係る扇風機20は、ガードリング3の直径が、ファン1の直径よりも小さい点で実施の形態1に係る扇風機20と相違する。図10は、実施の形態2に係る扇風機が送風部を真上に向けた状態で転倒し、クリップが係合していない部分が床面に衝突した状態を示す模式図である。図10中の矢印は、転倒時の衝撃によってファン1が傾く方向を示している。転倒時の衝撃でファン1が傾いた場合、ファン1の先端部6は、背面部2のうち、ファン1の外縁に対応する部分よりもファン1の回転軸Cに近い部分に衝突する。
図12は、実施の形態3に係る扇風機の送風部のグリルを外した状態での正面図である。実施の形態3に係る扇風機20は、衝突防止リング11を備える。衝突防止リング11は、ガード10の背面部2に取り付けられている。衝突防止リング11の直径は、ファン1の直径よりも大きい。衝突防止リング11の半径は、ファン1の半径から羽根1aの先端部6と背面部2との間隔を減じた大きさよりも大きくなっている。ガードリング3は、実施の形態1に係る扇風機20と比較すると、ファン1の回転軸Cに近い位置に設置されている。この他は、実施の形態1に係る扇風機20と同様である。
Claims (6)
- 気流を形成するファンを有する送風部と、前記送風部を上下方向に回動可能に支持する支柱部と、前記支柱部を支持する台座部とを備え、
前記送風部は、
放射状に配置された複数のワイヤで前記ファンを後方から覆う背面部及び前記ファンの回転軸と平行に配置された複数のワイヤで前記ファンを側方から覆う側面部を有するガードと、
前記ファンを前方から覆うグリルと、
外径が前記ファンの直径以下の円環状であり、前記ファンと同軸で前記背面部に設置された保護部材とを備えることを特徴とする扇風機。 - 前記保護部材の半径は、前記ファンの半径から前記ファンと前記保護部材との間隔を引いた長さよりも大きいことを特徴とする請求項1に記載の扇風機。
- 前記保護部材は、前記背面部の変形を抑制するガードリングであることを特徴とする請求項1又は2に記載の扇風機。
- 前記保護部材は、前記背面部の変形を抑制するガードリングとは別に設けられた衝突防止リングであることを特徴とする請求項1又は2に記載の扇風機。
- 前記グリルは、前記側面部に係合するクリップを備え、
前記クリップは、前記側面部に沿う曲板状であることを特徴とする請求項1から4のいずれか1項に記載の扇風機。 - 前記クリップの高さは、前記ファンと前記ガードの前記側面部との間隔の1/3以下であることを特徴とする請求項5に記載の扇風機。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2023522133A JPWO2022244203A1 (ja) | 2021-05-20 | 2021-05-20 | |
PCT/JP2021/019220 WO2022244203A1 (ja) | 2021-05-20 | 2021-05-20 | 扇風機 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2021/019220 WO2022244203A1 (ja) | 2021-05-20 | 2021-05-20 | 扇風機 |
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WO2022244203A1 true WO2022244203A1 (ja) | 2022-11-24 |
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PCT/JP2021/019220 WO2022244203A1 (ja) | 2021-05-20 | 2021-05-20 | 扇風機 |
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WO (1) | WO2022244203A1 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010116808A (ja) * | 2008-11-12 | 2010-05-27 | Sanyo Electric Co Ltd | 扇風機 |
JP3167138U (ja) * | 2011-01-26 | 2011-04-07 | ツインバード工業株式会社 | 扇風機 |
JP2015169151A (ja) * | 2014-03-07 | 2015-09-28 | 東芝ホームテクノ株式会社 | 扇風機および扇風機の羽根 |
WO2016129084A1 (ja) * | 2015-02-12 | 2016-08-18 | 三菱電機株式会社 | 扇風機 |
WO2017212649A1 (ja) * | 2016-06-10 | 2017-12-14 | 三菱電機株式会社 | 扇風機 |
-
2021
- 2021-05-20 WO PCT/JP2021/019220 patent/WO2022244203A1/ja active Application Filing
- 2021-05-20 JP JP2023522133A patent/JPWO2022244203A1/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010116808A (ja) * | 2008-11-12 | 2010-05-27 | Sanyo Electric Co Ltd | 扇風機 |
JP3167138U (ja) * | 2011-01-26 | 2011-04-07 | ツインバード工業株式会社 | 扇風機 |
JP2015169151A (ja) * | 2014-03-07 | 2015-09-28 | 東芝ホームテクノ株式会社 | 扇風機および扇風機の羽根 |
WO2016129084A1 (ja) * | 2015-02-12 | 2016-08-18 | 三菱電機株式会社 | 扇風機 |
WO2017212649A1 (ja) * | 2016-06-10 | 2017-12-14 | 三菱電機株式会社 | 扇風機 |
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