JPH0451295Y2 - - Google Patents
Info
- Publication number
- JPH0451295Y2 JPH0451295Y2 JP1984193867U JP19386784U JPH0451295Y2 JP H0451295 Y2 JPH0451295 Y2 JP H0451295Y2 JP 1984193867 U JP1984193867 U JP 1984193867U JP 19386784 U JP19386784 U JP 19386784U JP H0451295 Y2 JPH0451295 Y2 JP H0451295Y2
- Authority
- JP
- Japan
- Prior art keywords
- ventilation fan
- body frame
- frame
- scattering prevention
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Motor Or Generator Frames (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は厨房用の換気扇、特に厨房油煙起源
の付着油を回収するための油飛散防止枠等を備え
た換気扇に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a ventilation fan for kitchens, and particularly to a ventilation fan equipped with an oil scattering prevention frame for collecting attached oil originating from kitchen oil smoke.
第５図は例えば実開昭55−112620号公報に示さ
れた従来の換気扇の側面図であり、図において、
１は換気扇本体枠、２はモータ、３はモータ軸に
取付けた換気フアン、４はベルマウス５を有する
油受け枠で、本体枠１に着脱可能である。６は油
受け枠４に取付けた油溜りである。
FIG. 5 is a side view of a conventional ventilation fan shown in, for example, Japanese Utility Model Application Publication No. 55-112620, and in the figure,
1 is a ventilation fan body frame, 2 is a motor, 3 is a ventilation fan attached to the motor shaft, and 4 is an oil receiver frame having a bell mouth 5, which can be attached to and detached from the body frame 1. 6 is an oil reservoir attached to the oil receiving frame 4.
上記のような従来の換気扇では、換気フアン３
がベルマウス５内に全て収納されてしまうので、
騒音は高くしかも排気性能が著しく低下する。ま
た、油受け枠４はベルマウス５と共に着脱可能で
あり、しかも換気フアンを高静圧にするためには
ベルマウス５とフアン３との隙間を小さくする程
好ましいが、ベルマウス５に着脱機能を有せしめ
ながらこれとフアン３との隙間を一定に保つこと
は困難である等の問題点があつた。
In the conventional ventilation fan as mentioned above, ventilation fan 3
is all stored inside Bellmouth 5, so
The noise is high and the exhaust performance is significantly reduced. In addition, the oil receiving frame 4 is removable together with the bell mouth 5, and in order to make the ventilation fan high static pressure, it is preferable to reduce the gap between the bell mouth 5 and the fan 3. There have been problems such as it is difficult to maintain a constant gap between the fan 3 and the fan 3.
それ故、この考案の主な目的は、換気扇本体枠
と換気フアンとベルマウスと油飛散防止枠と油溜
りとを有する形式の換気扇において、換気フア
ンの騒音を低下させること、換気フアンの排気
性能を向上させること、換気フアンを高静圧に
するためにベルマウスと換気フアンとの隙間を小
さくかつ一定に保つこと、油付着率を高めるこ
と、換気扇の清掃を容易にすること、しかも
以上のことを簡単な構成によつて達成することに
ある。
Therefore, the main purpose of this invention is to reduce the noise of the ventilation fan and to reduce the exhaust performance of the ventilation fan in a ventilation fan having a ventilation fan body frame, a ventilation fan, a bell mouth, an oil scattering prevention frame, and an oil reservoir. To improve the ventilation fan, to keep the gap between the bell mouth and the ventilation fan small and constant in order to make the ventilation fan high static pressure, to increase the oil adhesion rate, to make cleaning the ventilation fan easier, and to do the above. The objective is to achieve this through a simple configuration.
この考案は、換気扇本体枠と換気フアンとベル
マウスと油飛散防止枠と油溜りとを有する形式の
換気扇において、上記の目的を達成するために、
換気扇本体枠の中央部にこれと一体にベルマウ
スを設け、換気扇本体枠の背面に取付足を介して
モータを据付け、
該モータのモータ軸に上記ベルマウスの中心に
位置するように換気フアンを取付けると共に該換
気フアンの前端を換気扇本体枠の前面よりも前方
へ突出させ、
換気扇本体枠に、該本体枠を囲繞しかつ該本体
枠の前面よりも前方へ突出するように、油飛散防
止枠を着脱自在に取付け、該油飛散防止枠の下枠
に油溜りを取付け、
換気扇本体枠の前面と換気フアンの前端との距
離をａとし換気扇本体枠の前面と油飛散防止枠の
前面との距離をｂとしたときのｂ／ａ比を0.5以
上1.2以下とし、換気フアンの外径部から油飛散
防止枠の外周までの距離をｃとしたときのｂ／ｃ
比を0.9以下としたものである。」
〔作用〕
この考案による換気扇においては、換気扇本体
枠の中央部にこれと一体にベルマウスを設けたの
で、ベルマウスと換気フアンとの隙間を一定に保
つことが可能となる。また、換気フアンの前端を
ベルマウスしたがつてまた換気扇本体枠から前方
へ突出させたので、換気フアンの外周からも空気
を吸込むことが可能となる。
This invention is a ventilation fan that has a ventilation fan body frame, a ventilation fan, a bell mouth, an oil scattering prevention frame, and an oil reservoir, and in order to achieve the above purpose, a bell is integrated with the ventilation fan body frame in the center of the ventilation fan body frame. A mouse is provided, a motor is installed on the back of the ventilation fan body frame via the mounting foot, a ventilation fan is attached to the motor shaft of the motor so as to be located in the center of the bell mouth, and the front end of the ventilation fan is attached to the ventilation fan body frame. An oil scattering prevention frame is removably attached to the ventilation fan body frame so as to protrude forward from the front surface, surround the body frame, and protrude beyond the front surface of the body frame, and the oil scattering prevention frame Attach the oil reservoir to the lower frame, and calculate the b/a ratio when the distance between the front of the ventilation fan body frame and the front end of the ventilation fan is a, and the distance between the front of the ventilation fan body frame and the front of the oil scattering prevention frame is b. b/c when 0.5 or more and 1.2 or less, and c is the distance from the outer diameter of the ventilation fan to the outer periphery of the oil scattering prevention frame.
The ratio is 0.9 or less. [Function] In the ventilation fan according to this invention, since the bell mouth is provided integrally with the central part of the ventilation fan body frame, it is possible to maintain a constant gap between the bell mouth and the ventilation fan. Moreover, since the front end of the ventilation fan is made to project forward from the ventilation fan main body frame, it is possible to draw in air from the outer periphery of the ventilation fan.
そして、これらの相乗作用によつて、換気フア
ンの騒音の低下と、排気性能の向上と、高静圧と
を達成することができる。 Through these synergistic effects, it is possible to reduce the noise of the ventilation fan, improve the exhaust performance, and achieve high static pressure.
さらに、換気扇本体枠に、該本体枠を囲繞しか
つ該本体枠の前面より前方へ突出するように、油
飛散防止枠を取付けたので、油の付着率を高める
ことができる。 Further, since the oil scattering prevention frame is attached to the ventilation fan main body frame so as to surround the main body frame and protrude forward from the front surface of the main body frame, the rate of oil adhesion can be increased.
第１図および第２図はこの考案の一実施例を示
すもので、図において、７は換気扇本体枠で、そ
の中央部に一体にベルマウス８を設け、本体枠７
は四隅の取付孔７ａからボルト等で壁体９に固定
される。１０は取付足１１を有するモータで、上
記本体枠７の背面に溶接により固着した足取付台
１２に取付足１１をボルト１３等で結合してモー
タ１０を据付けている。１４はモータ軸にスピン
ナー１５でもつて取付けた換気フアンであつて、
フアン１４はベルマウス８に小さい隙間ｆを隔て
て取付けられ、フアン１４の前端はベルマウス８
から前方へ突出している。１６は油飛散防止枠
で、枠１６の前面に折返しフランジ１７を設けて
いる。そして油飛散防止枠１６は、その引掛部１
８が換気扇本体枠７の係合部１９へ掛合され、本
体枠７を囲繞すると共に本体枠７の前面よりも前
方へ突出するように取付けられている。２０は油
飛散防止枠１６に取付けた保護ガード、２１は油
飛散防止枠１６の下部にねじ２２で取付けた着脱
可能の油溜りである。
FIGS. 1 and 2 show an embodiment of this invention. In the figures, 7 is a ventilation fan main body frame, and a bell mouth 8 is integrally provided in the center of the main body frame 7.
are fixed to the wall 9 with bolts or the like through the mounting holes 7a at the four corners. Reference numeral 10 denotes a motor having mounting feet 11, and the motor 10 is installed by connecting the mounting feet 11 to a foot mounting base 12 fixed to the back surface of the main body frame 7 by welding with bolts 13 or the like. 14 is a ventilation fan attached to the motor shaft with a spinner 15,
The fan 14 is attached to the bell mouth 8 with a small gap f, and the front end of the fan 14 is attached to the bell mouth 8.
It protrudes forward from. 16 is an oil scattering prevention frame, and a folding flange 17 is provided on the front surface of the frame 16. The oil scattering prevention frame 16 is attached to its hook portion 1.
8 is engaged with the engaging portion 19 of the ventilation fan main body frame 7, surrounds the main body frame 7, and is attached so as to protrude forward from the front surface of the main body frame 7. 20 is a protective guard attached to the oil scattering prevention frame 16, and 21 is a removable oil reservoir attached to the lower part of the oil scattering prevention frame 16 with screws 22.
第３図は油飛散防止枠１６の特性を示すもの
で、横軸はｂ／ａ比、ただしａは換気扇本体枠７
の前面と換気フアン１４の前端との距離、ｂは換
気扇本体枠７の前面と油飛散防止枠１６の前面と
の距離である。そして縦軸は油飛散防止枠１６へ
の油の付着率ｑ（％）であり、このｑは〔油飛散
防止枠への付着量／油飛散防止枠への付着量＋未
回収量〕を示す。したがつて上記の特性から明ら
かなようにｂ／ａ比は0.5以上1.2以下が好適であ
る。 Figure 3 shows the characteristics of the oil scattering prevention frame 16, where the horizontal axis is the b/a ratio, where a is the ventilation fan main frame 7.
b is the distance between the front surface of the ventilation fan main body frame 7 and the front surface of the oil scattering prevention frame 16. The vertical axis is the adhesion rate q (%) of oil to the oil scattering prevention frame 16, and this q indicates [amount adhered to the oil scattering prevention frame/amount adhered to the oil scattering prevention frame + unrecovered amount] . Therefore, as is clear from the above characteristics, the b/a ratio is preferably 0.5 or more and 1.2 or less.
また第４図はフアンの騒音特性を示すもので、
横軸はｂ／ｃ比、ただしｃはフアン１４の外径部
から油飛散防止枠１６の外周までの距離であり、
縦軸に騒音増加値（dB）を示す。これによつて
ｂ／ｃ比は0.9以下がフアンの騒音を低くできる
ことがわかる。 Figure 4 shows the noise characteristics of the fan.
The horizontal axis is the b/c ratio, where c is the distance from the outer diameter of the fan 14 to the outer periphery of the oil scattering prevention frame 16;
The vertical axis shows the noise increase value (d B ). This shows that a b/c ratio of 0.9 or less can reduce fan noise.
この考案はその他、油飛散防止枠１６のフラン
ジ１７の長さｇを、下枠に滞留する付着油が折返
しフランジ１７を越えて手前側にこぼれるのを阻
止するに足る値、例えば３mm以上にすると飛散し
た油の回収性がよくなるばかりでなく、エツジ部
特有の風切音がなくなるので騒音の低下にも寄与
する。なお、油飛散防止枠１６の内周面と本体枠
７の外周面との間には全周に亙つて間隙ｅを設け
て振動の伝達を防止し、かつ組立性の向上を計つ
ている。 Another aspect of this invention is that the length g of the flange 17 of the oil scattering prevention frame 16 is set to a value sufficient to prevent the adhered oil remaining on the lower frame from spilling over the folded flange 17 to the front side, for example, 3 mm or more. Not only does it improve the recovery of scattered oil, but it also eliminates the wind noise characteristic of edges, which contributes to a reduction in noise. A gap e is provided along the entire circumference between the inner circumferential surface of the oil scattering prevention frame 16 and the outer circumferential surface of the main body frame 7 to prevent transmission of vibrations and to improve ease of assembly.
また、この考案では油飛散防止枠１６および油
溜り２１を取外し可能にすることで換気扇の清掃
や油の排出が容易に行なえる利点がある。 Further, this invention has the advantage that the oil scattering prevention frame 16 and the oil reservoir 21 are made removable, making it easy to clean the ventilation fan and drain the oil.
この考案は、以上説明したように、換気扇本体
枠の中央部にこれと一体にベルマウスを設け、換
気扇本体枠の背面に取付足を介してモータを据付
け、モータ軸にベルマウスの中心に位置するよう
に換気フアンを取付けると共にこの換気フアンの
前端をベルマウスしたがつてまた換気扇本体枠の
前面よりも前方へ突出させ、本体枠の前面と換気
フアンの前端との距離をａとし換気扇本体枠の前
面と油飛散防止枠の前面との距離をｂとしたとき
のｂ／ａ比を0.5以上1.2以下としたので、下記
〜の効果を奏することができる。
As explained above, this idea is to install a bell mouth in the center of the ventilation fan body frame, install the motor on the back of the ventilation fan body frame via the mounting foot, and position the motor shaft at the center of the bell mouth. Attach the ventilation fan so that the front end of the ventilation fan has a bell mouth and protrude further forward than the front of the ventilation fan main body frame, and set the distance between the front of the main body frame and the front end of the ventilation fan to be a. Since the b/a ratio is set to 0.5 or more and 1.2 or less, where b is the distance between the front surface of the oil scattering prevention frame and the front surface of the oil scattering prevention frame, the following effects can be achieved.
換気フアンの騒音を低下させることができ
る。 The noise of ventilation fans can be reduced.
換気フアンの外周からも空気を吸込ませるこ
とによつて排気性能を向上させることができ
る。 Exhaust performance can be improved by sucking air also from the outer periphery of the ventilation fan.
換気フアンとベルマウスとの隙間を小さくか
つ一定に保つことによつて、換気フアンを高静
圧にすることができる。 By keeping the gap between the ventilation fan and the bell mouth small and constant, the ventilation fan can have a high static pressure.
この考案は、また、換気扇本体枠に、この本体
枠を囲繞しかつこの本体枠の前面より前方へ突出
するように、油溜りを備えた油飛散防止枠を着脱
自在に取付け、換気フアンの外径部から油飛散防
止枠の外周までの距離をｃとしたときのｂ／ｃ比
を0.9以下としたので、下記〜の効果を奏す
ることができる。 This idea also removably attaches an oil scattering prevention frame with an oil reservoir to the ventilation fan main body frame so as to surround the main body frame and protrude forward from the front of the main body frame. Since the b/c ratio is set to 0.9 or less when the distance from the diameter portion to the outer periphery of the oil scattering prevention frame is c, the following effects can be achieved.
簡単な構成で油の付着率を高めることができ
る。 The oil adhesion rate can be increased with a simple configuration.
換気扇の清掃や油溜りに回収した付着油の排
出を容易に行なうことができる。 The ventilation fan can be cleaned and the oil collected in the oil pool can be easily drained.
この考案は、更に、油飛散防止枠の前面に折返
しフランジを設けたので、下記〜の効果を奏
することができる。 This invention further provides the following effects since a folded flange is provided on the front surface of the oil scattering prevention frame.
換気フアンから飛散して油飛散防止枠に付着
した付着油の回収性がよくなる。 The oil scattered from the ventilation fan and attached to the oil scattering prevention frame can be easily collected.
油飛散防止枠の先端にエツジ部がないので、
エツジ部特有の風切音が発生しない（即ち、油
飛散防止枠の前面を横切る空気の流れ（折返し
フランジに平行な空気の流れ）は、層流となつ
て乱流を発生せず、従つて乱流を音源とする風
切音も発生しない）。 Since there is no edge at the tip of the oil scatter prevention frame,
The wind noise peculiar to the edge part does not occur (in other words, the air flow across the front surface of the oil scattering prevention frame (air flow parallel to the folded flange) becomes a laminar flow and does not generate turbulence. There is no wind noise caused by turbulence).
第１図はこの考案の一実施例を示す換気扇の断
面図、第２図は各部材の分解斜視図、第３図は排
気特性図、第４図は騒音特性図、第５図は従来の
換気扇の側面図である。
７……換気扇本体枠、８……ベルマウス、１０
……モータ、１１……取付足、１２……足取付
台、１４……換気フアン、１６……油飛散防止
枠、１７……フランジ、２０……保護ガード、２
１……油溜り。ａ……換気扇本体枠の前面と換気
フアンの前端との距離、ｂ……換気扇本体枠の前
面と油飛散防止枠の前面との距離、ｃ……換気フ
アンの外径部から油飛散防止枠の外周までの距
離、ｄ……換気フアンの外径。なお、図中、同一
符号は同一又は相当部分を示す。
Figure 1 is a sectional view of a ventilation fan showing an embodiment of this invention, Figure 2 is an exploded perspective view of each member, Figure 3 is an exhaust characteristic diagram, Figure 4 is a noise characteristic diagram, and Figure 5 is a conventional ventilation fan. It is a side view of a ventilation fan. 7... Ventilation fan body frame, 8... Bell mouth, 10
... Motor, 11 ... Mounting foot, 12 ... Foot mounting base, 14 ... Ventilation fan, 16 ... Oil scattering prevention frame, 17 ... Flange, 20 ... Protective guard, 2
1... Oil puddle. a... Distance between the front of the ventilation fan body frame and the front end of the ventilation fan, b... Distance between the front of the ventilation fan body frame and the front of the oil scattering prevention frame, c... Distance from the outside diameter of the ventilation fan to the oil scattering prevention frame Distance to the outer circumference, d...Outer diameter of the ventilation fan. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
マウス８を設け、換気扇本体枠７の背面に取付
足１１を介してモータ１０を据付け、 該モータ１０のモータ軸に上記ベルマウス８
の中心に位置するように換気フアン１４を取付
けると共に、該換気フアン１４の前端をベルマ
ウス８したがつてまた換気扇本体枠７の前面よ
りも前方へ突出させ、 換気扇本体枠７に、該本体枠７を囲繞し該本
体枠７の前面よりも前方へ突出するように、油
飛散防止枠１６を着脱自在に取付け、該油飛散
防止枠１６の下枠に油溜り２１を取付け、 換気扇本体枠の前面と換気フアンの前端との
距離をａとし換気扇本体枠の前面と油飛散防止
枠の前面との距離をｂとしたときのｂ／ａ比を
0.5以上1.2以下とし、 換気フアンの外径部から油飛散防止枠の外周
までの距離をｃとしたときのｂ／ｃ比を0.9以
下とした ことを特徴とする換気扇。 (2) モータ１０の取付足１１は換気扇本体枠の背
面に溶接した足取付台１２にねじ固定したこと
を特徴とする実用新案登録請求の範囲第１項記
載の換気扇。 (3) 油飛散防止枠１６は前面に折返しフランジ１
７を有することを特徴とする実用新案登録請求
の範囲第１項記載の換気扇。 (4) 油飛散防止枠１６の前面の折返しフランジ１
７は長さを少なくとも３mmとしたことを特徴と
する実用新案登録請求の範囲第３項記載の換気
扇。[Scope of Claim for Utility Model Registration] (1) A bell mouth 8 is provided integrally with the central part of the ventilation fan body frame 7, and a motor 10 is installed on the back side of the ventilation fan body frame 7 via a mounting foot 11; The above bell mouth 8 is attached to the motor shaft of
The ventilation fan 14 is installed so as to be located in the center of the ventilation fan body frame 7, and the front end of the ventilation fan 14 is made to protrude further forward than the bell mouth 8 and the front surface of the ventilation fan body frame 7. An oil scattering prevention frame 16 is removably attached so as to surround the ventilation fan body frame 7 and protrude forward from the front surface of the main body frame 7, and an oil reservoir 21 is attached to the lower frame of the oil scattering prevention frame 16. The b/a ratio is when the distance between the front face and the front end of the ventilation fan is a, and the distance between the front face of the ventilation fan body frame and the front face of the oil scattering prevention frame is b.
A ventilation fan characterized by having a b/c ratio of 0.5 or more and 1.2 or less, and a b/c ratio of 0.9 or less, where c is the distance from the outer diameter of the ventilation fan to the outer periphery of the oil scattering prevention frame. (2) The ventilation fan according to claim 1, wherein the mounting foot 11 of the motor 10 is screwed to a foot mount 12 welded to the back side of the ventilation fan body frame. (3) The oil scattering prevention frame 16 has a folded flange 1 on the front.
7. The ventilation fan according to claim 1 of the utility model registration claim. (4) Folded flange 1 on the front of the oil scattering prevention frame 16
7. The ventilation fan according to claim 3, characterized in that the length is at least 3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984193867U JPH0451295Y2 (en) | 1984-12-21 | 1984-12-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984193867U JPH0451295Y2 (en) | 1984-12-21 | 1984-12-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61110021U JPS61110021U (en) | 1986-07-12 |
| JPH0451295Y2 true JPH0451295Y2 (en) | 1992-12-03 |
Family
ID=30751300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984193867U Expired JPH0451295Y2 (en) | 1984-12-21 | 1984-12-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0451295Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7422700B2 (en) * | 2021-03-26 | 2024-01-26 | 三菱電機株式会社 | ventilation fan |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55112622U (en) * | 1979-01-31 | 1980-08-08 |
-
1984
- 1984-12-21 JP JP1984193867U patent/JPH0451295Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61110021U (en) | 1986-07-12 |
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