JP6549811B1 - Contamination prevention technology for range hoods and fans - Google Patents

Contamination prevention technology for range hoods and fans Download PDF

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JP6549811B1
JP6549811B1 JP2019046078A JP2019046078A JP6549811B1 JP 6549811 B1 JP6549811 B1 JP 6549811B1 JP 2019046078 A JP2019046078 A JP 2019046078A JP 2019046078 A JP2019046078 A JP 2019046078A JP 6549811 B1 JP6549811 B1 JP 6549811B1
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plate
range hood
fan
compressed air
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JP2020056562A (en
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明彦 山口
明彦 山口
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明彦 山口
明彦 山口
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Priority to KR1020217007229A priority patent/KR102324976B1/en
Priority to PCT/JP2019/038382 priority patent/WO2020071292A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2021—Arrangement or mounting of control or safety systems
    • 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

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

Abstract

【課題】厨房で発生した油煙を収集し排出するレンジフードやそのファンにおいて汚染防止を可能とする技術を提供する。【解決手段】レンジフードに付属のファンＦの圧風の全部を排気ダクトＤに送り、その流れで、厨房で発生した油煙や汚れを、レンジフード外周の隙間から吸引し前記排気ダクトを経て廃棄する構造であるから、厨房で発生した油煙や汚れがファンを通過することは無く、従って、レンジフードに付属のファンが、厨房で発生した油煙や汚れで汚染されることはない。【選択図】図１Disclosed is a range hood that collects and discharges oil smoke generated in a kitchen, and a technology that can prevent contamination in its fan. SOLUTION: All of the compressed air of the fan F attached to the range hood is sent to the exhaust duct D, and by that flow, the oil smoke and dirt generated in the kitchen are sucked from the outer periphery of the range hood and discarded through the exhaust duct. Therefore, the oil smoke and dirt generated in the kitchen do not pass through the fan, and therefore the fan attached to the range hood is not contaminated with the oil smoke and dirt generated in the kitchen. [Selection] Figure 1

Description

本発明は、厨房で発生した油煙を収集し排出するレンジフードやそのファンにおいて汚染防止を可能とする技術を実現する。 The present invention realizes a technology that makes it possible to prevent contamination in a range hood that collects and discharges oil smoke generated in a kitchen and its fan.

安価なレンジフードは、厨房で発生した油煙をファンで集めて排出するだけであるが、フィルターを設けて油や埃などを付着させ、清浄にした空気のみを排出する構成が普及している。さらに、油や埃がフィルターに蓄積されたら水で洗浄除去し、加えて特許文献１のようにマイクロ波を照射して油脂を軟化させ、洗浄を容易にする技術も知られている。しかしながら、油煙の油や埃はフィルターに限らず他の厨房設備にも付着するため、定期的に人手で掃除し清掃している。 An inexpensive range hood only collects and discharges oil smoke generated in a kitchen with a fan, but a filter is provided to attach oil, dust, etc., and a configuration in which only cleaned air is discharged is widespread. Furthermore, when oil and dust are accumulated in a filter, the technology of washing and removing with water, and additionally irradiating microwaves to soften fats and oils as in Patent Document 1 to ease washing is also known. However, since oil and dust from the oil smoke adhere not only to the filter but also to other kitchen facilities, they are regularly cleaned manually.

特開2017-58092号公報JP, 2017-58092, A

特許文献１の技術では、油や埃がフィルターに付着して汚れたり効率が低下したら洗浄できるが、フィルター以外に付着した油や埃は除去できず、人手に頼るしかない。加えて、ファン自体の汚染は防止できない。
本発明は、油や埃がフィルター以外やファン自体にも付着しないで排出される技術を提案し、フィルター以外やファンの清掃を要しないレンジフードを実現する。 According to the technology of Patent Document 1, oil and dust can be cleaned if they adhere to the filter and become dirty or the efficiency decreases, but oil and dust adhering to other than the filter can not be removed, and they can not but be resorted to manually. In addition, contamination of the fan itself can not be prevented.
The present invention proposes a technology in which oil and dust are discharged without being attached to the filter or the fan itself, and realizes a range hood which does not require cleaning of the filter or the fan.

本発明の技術的課題は、このような問題に着目し、油や埃が厨房設備の壁面などやファンに付着したりすること無しに直接に排出される技術を提案し、人手に頼っていた厨房設備の清掃を要しないレンジフードを実現することにある。 The technical problems of the present invention focused on such problems, and proposed a technology in which oil and dust are directly discharged without being attached to the wall of a kitchen facility or a fan, and relied on manpower. The goal is to realize a range hood that does not require cleaning of kitchen equipment.

本発明の技術的課は次のような手段によって解決される。請求項１は、ファンで発生した圧風の半分以上を片方のルートから排気ルートに送り、残りはもう一方のルートから整流ルートに２分して送風し、整流ルートを二つに分けて、片方は整流板の底板の下層に送り、もう一方は整流板の中板と前記底板との間の補助層に送り、この補助層から出た圧風はレンジフード外周の隙間から前記中板の上面を経て前記排気ルートに向けて噴出させることを特徴とするレンジフードの汚染防止方法である。 The technical section of the present invention is solved by the following means. In the first aspect, half or more of the pressure generated by the fan is sent from one route to the exhaust route, and the rest is split into two from the other route to the straightening route, and the straightening route is divided into two, One is sent to the lower layer of the bottom plate of the straightening vane, and the other is sent to the auxiliary layer between the middle plate of the straightening vane and the bottom plate, and the compressed air coming out of this auxiliary layer is It is a contamination prevention method of the range hood characterized by making it eject toward the said exhaust route via an upper surface .

請求項２は、ファンを囲んだケーシングの出口と排気ダクトと整流板との間に配設された仕切りてあって、ファンで発生し前記出口から出た圧風を２分して半分以上を排気ルートに送風し、残りを整流ルートに送風して、整流ルートに送られた圧風を整流板の底板の下層に送る中央隙間を有し、整流板の中板と前記底板との間の補助層に送った圧風を、レンジフード外周に配設した隙間から前記中板の上面を経由して前記排気ルートに向けて噴出させる構造としたことを特徴とするレンジフードの汚染防止構造である。 According to a second aspect of the present invention, there is provided a partition disposed between the outlet of the casing surrounding the fan, the exhaust duct, and the straightening vane, which divides the compressed air generated by the fan out of the outlet into two or more. It has a central gap that blows air to the exhaust route and blows the rest to the straightening route and sends the compressed air sent to the straightening route to the lower layer of the bottom plate of the straightening plate, between the middle plate of the straightening plate and the bottom plate the圧風sent to the auxiliary layer, the gap which is arranged in the hood outer peripheral contaminated prevention structure of the range hood, characterized in that it has a structure for jetting towards said exhaust routes via an upper surface of the insertion plate is there.

請求項３は、ファンで発生し前記ケーシングの出口から出た圧風を整流ルートに送る１以上の圧風管を囲むようにフィルターを設けてあることを特徴とする請求項２に記載のレンジフードの汚染防止構造である。 Claim 3 of Claim 2 you, characterized in that the圧風exiting from the outlet of the casing occurs at the fan is provided with a filter so as to surround one or more圧風tubes to be sent to the rectification route it is a pollution prevention structure of Les Njifudo.

請求項４は、前記中板の上に配設した天井壁の上側から前記中板の下側に送風する１以上の圧風管を配設し、前記圧風管の存在しない空間から前記中板の上面を経由した圧風が前記排気ルートに向って送風される構造であることを特徴とする請求項２又は請求項３に記載のレンジフードの汚染防止構造である。 According to a fourth aspect of the present invention, one or more air-blowing tubes for blowing air from the upper side of the ceiling wall disposed above the mid-plate to the lower side of the mid-plate are disposed. It is a structure by which the compressed air which passed through the upper surface of the board is ventilated toward the said exhaust route, It is a contamination prevention structure of the range hood of Claim 2 or Claim 3 characterized by the above-mentioned .

請求項５は、前記天井壁の外周は下向きに湾曲しており、前記底板の下層に向かって吸引された汚れは、前記湾曲の内側を経て、前記レンジフード外周の隙間から噴出した負圧で吸引される構造であることを特徴とする請求項４に記載のレンジフードの汚染防止構造である。 According to a fifth aspect of the present invention, the outer periphery of the ceiling wall is curved downward, and the dirt sucked toward the lower layer of the bottom plate passes through the inside of the curve and is discharged from the gap of the range hood outer periphery It is a structure which is attracted | sucked, It is a contamination prevention structure of the range hood of Claim 4 characterized by the above-mentioned.

請求項１のように、ファンで発生した圧風の半分以上を片方のルートから排気ルートに送り、残りはもう一方のルートから整流ルートに送風し、整流ルートを二つに分けて、片方は整流板の底板の下層に送り、もう一方は整流板の中板と前記底板との間の補助層に送り、この補助層から出た圧風はレンジフード外周の隙間から前記中板の上面を経て前記排気ルートに向けて噴出させるため、厨房で発生した油煙や汚れがファンを通過することは無く、従って、レンジフードに付属のファンが、厨房で発生した油煙や汚れで汚染されることはあり得ない。 As in claim 1, more than half of the pressure generated by the fan is sent from one route to the exhaust route, the rest is blown from the other route to the rectification route, and the rectification route is divided into two, one is It is sent to the lower layer of the bottom plate of the straightening vane, and the other is sent to the auxiliary layer between the middle plate of the straightening vane and the bottom plate, and the compressed air coming out of this auxiliary layer flows from the gap of the range hood outer circumference Since the oil smoke and dirt generated in the kitchen never pass through the fan because they are spouted toward the exhaust route, the fan attached to the cooker hood is not contaminated with the oil smoke and dirt generated in the kitchen. impossible.

請求項２のように、ファンを囲んだケーシングの出口と排気ダクトと整流板との間に配設された仕切りてあって、ファンで発生し出口から出た圧風を２分して半分以上を排気ルートに送風し、残りを整流ルートに送風して、整流ルートに送られた圧風を整流板の底板の下層に送る中央隙間を有し、整流板の中板と前記底板との間の補助層に送った圧風を、レンジフード外周に配設した隙間から前記中板の上面を経由して前記排気ルートに向けて噴出させる構造としたので、付属のファンが、厨房で発生した油煙や汚れで汚染されることはあり得ない。 As in claim 2, a partition disposed between the outlet of the casing surrounding the fan, the exhaust duct, and the straightening vane, and dividing the compressed air generated by the fan into two or more and more than half Between the middle plate of the straightening vane and the bottom plate, with a central gap for blowing the air to the exhaust route and the rest to the straightening route and sending the compressed air sent to the straightening route to the lower layer of the bottom plate of the straightening plate. The attached fan was generated in the kitchen, because the compressed air sent to the auxiliary layer was ejected from the gap provided on the outer periphery of the range hood via the upper surface of the middle plate toward the exhaust route . It can not be contaminated with oil smoke or dirt.

請求項３のように、ファンで発生し出口から出た圧風を整流ルートに送る１以上の圧風管を囲むようにフィルターを設けてあるので、このフィルターで初めて、厨房から出た汚れが付着し、フィルターと共に廃棄される。 As in the third aspect, the filter is provided to surround the one or more air ducts for sending the compressed air generated by the fan and coming out of the outlet to the straightening route. Adhere and discard with the filter.

請求項４のように、前記中板の上に配設した天井壁の上側から前記中板の下側に送風する１以上の圧風管を配設し、前記圧風管の存在しない空間から前記中板の上面を経由した圧風が前記排気ルートに向って送風される構造であるため、厨房で発生した油煙などの汚れは、底板の下層に吸引され、次いでレンジフード外周の隙間による負圧で排気ルートに送られて排出され、厨房から出た汚れがレンジフードの壁面などに付着することはできない。 According to the fourth aspect of the present invention, one or more air-blowing tubes that blow air from the upper side of the ceiling wall disposed on the mid-plate to the lower side of the mid-plate are disposed. Since the structure is such that the compressed air passing through the upper surface of the middle plate is blown toward the exhaust route, dirt such as oil smoke generated in the kitchen is drawn to the lower layer of the bottom plate and then negative due to the gap in the outer periphery of the range hood. It is sent to the exhaust route by pressure and discharged, and the dirt from the kitchen can not adhere to the wall of the range hood etc.

請求項５のように、前記天井壁の外周は下向きに湾曲しており、前記底板の下層に向かって吸引された汚れは、前記湾曲の内側を経て、前記レンジフード外周の隙間から噴出した負圧で吸引される構造であるため、圧風供給筒11の中をファン出口Ｗから降下した圧風は底板３下面に吸引された油煙を、レンジフード外周の隙間７から矢印のように圧風供給筒11の間の空間から中央の排気ダクトＤに移送される。 The outer periphery of the ceiling wall is curved downward, and the dirt drawn toward the lower layer of the bottom plate passes through the inside of the curve and is discharged from the gap of the outer periphery of the range hood. Since the structure is such that the air is sucked by pressure, the compressed air that has descended from the fan outlet W in the compressed air supply cylinder 11 blows the oil smoke drawn to the lower surface of the bottom plate 3 from the gap 7 at the outer periphery of the range hood as shown by the arrow. The space between the supply tubes 11 is transferred to the central exhaust duct D.

本発明によるレンジフードのファンの汚染防止技術を示す断面図で、ファンの正面方向から見ている。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing a contamination prevention technique of a fan of a range hood according to the present invention, as viewed from the front of the fan. 本発明によるレンジフードの汚染防止技術を示す断面図で、ファンの正面方向から見ている。BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing a contamination preventing technique of a range hood according to the present invention, as viewed from the front of a fan. 図２の整流板の下部中央吹きだし部を示す拡大図である。It is an enlarged view which shows the lower center blow-out part of the baffle plate of FIG. レンジフード外周の中央向け吹きだし部を示す拡大図である。It is an enlarged view which shows the blowout part towards the center of a range hood perimeter. 図２のレンジフードの側面図である。It is a side view of the range hood of FIG. 図５のファンから出た圧風の流れを示す断面図である。It is sectional drawing which shows the flow of the compressed air which came out of the fan of FIG. 整流板の全容を示す上方斜視図である。It is a top perspective view which shows the whole volume of a baffle plate. 図７の整流板の平面図である。It is a top view of the straightening vane of FIG. フィルターの取付け位置を示す断面図である。It is sectional drawing which shows the attachment position of a filter.

次に本発明によるレンジフードの汚染防止技術が実際上どのように具体化されるか実施形態で説明する。図１は本発明によるレンジフードの正面断面図であり、ファンＦの回転羽根と排気ダクトＤが現れている。このファンＦは排気ダクトＤ専用であり、発生した圧風は専ら排気ダクトＤへガイドＡで排気方向に向けて送風される。そのため、ケーシングＣで外周が囲まれ、出口Ｗを残して他を閉鎖している。天板１と略平行に底板２を有している。この底板２の外周に設けた下向きの隙間Ｇをおいて、前記の天板１を有している。そのため、厨房で発生した油煙や汚れは、ファンＦから発生した排気ダクトＤの空気流に引かれて上昇し、底板２の外周の隙間Ｇから吸い上げられて、排気ダクトＤに導かれ、外部に排気される。従って、厨房で発生した油煙や汚れは、前記隙間Ｇから専ら排気ダクトＤへ導かれて外部に排気されるので、ファンＦを通過することは無く、ファンＦが汚染されることも無い。   Next, an embodiment will be described in which the contamination prevention technology for a range hood according to the present invention is practically embodied. FIG. 1 is a front cross-sectional view of a range hood according to the present invention, in which rotating blades of a fan F and an exhaust duct D appear. The fan F is dedicated to the exhaust duct D, and the generated compressed air is exclusively blown to the exhaust duct D by the guide A in the exhaust direction. Therefore, the outer periphery is surrounded by the casing C, and the exit W is left, and the others are closed. A bottom plate 2 is provided substantially parallel to the top plate 1. The top plate 1 is provided with a downward gap G provided on the outer periphery of the bottom plate 2. Therefore, the oil smoke and dirt generated in the kitchen are pulled up by the air flow of the exhaust duct D generated from the fan F and risen, sucked from the gap G on the outer periphery of the bottom plate 2 and guided to the exhaust duct D to the outside Exhausted. Therefore, oil smoke and dirt generated in the kitchen are led to the exhaust duct D exclusively from the gap G and exhausted to the outside, so they do not pass through the fan F, and the fan F is not contaminated.

図２は本発明によるレンジフードの正面断面図で、ファンＦはケーシングＣで外周が囲まれ、出口Ｗから圧風が出る。このファンＦの下側に、天井壁１、本発明の底板３及び中板５から成る整流板を備え、中央に排煙用の排出口４を有している。以下、圧風の流れに沿って説明する。ファンＦから出た圧風は出口Ｗを出て断面形状が横向きＴ字状の仕切りで２分され、前記仕切りの上側を排気ダクトＤに送風するＡルートと、前記仕切りの下側を整流板に送風するＢルートに分かれる。ファンＦから噴出された圧風は風量が多く、風速も早いので、排気ダクトＤの付近は負圧となり、排気口４に集められた油煙を勢いよく吸い出し、油煙出口４へと送り出される。 FIG. 2 is a front cross-sectional view of a range hood according to the present invention, in which the fan F is surrounded by the casing C at its outer periphery, and compressed air comes out from an outlet W. Below the fan F, there is provided a straightening vane consisting of a ceiling wall 1, a bottom plate 3 of the present invention and a middle plate 5 and a discharge outlet 4 for smoke emission at the center. The following description will be made along the flow of compressed air. The compressed air from the fan F exits the outlet W and is divided into two by a T-shaped partition whose cross-sectional shape is horizontal T-shaped, and the A route for blowing the upper side of the partition to the exhaust duct D, and the lower side of the partition is a straightening plate It divides into B route to blow. The compressed air blown out from the fan F has a large air volume and a high wind speed, so a negative pressure is generated in the vicinity of the exhaust duct D, and the oil smoke collected at the exhaust port 4 is sucked vigorously and sent out to the oil smoke outlet 4.

排煙風圧供給筒Ｄ１へ流れるＡルートと整流用圧風供給筒11へ流れるＢルートの２つに分かれるが、まず、整流用の圧風はＢルートを通過する際にコネクション部10を経て、圧風供給筒11を通過し、整流室Ｒに内に入る。整流室Ｒに入った圧風は、図３のように整流板の下面中央に有る中央吹出隙間６から四八方に放出し、図４のように整流板の外周縁に設けた外周吹き出し隙間７から中央向きに噴出され、排気ダクトＤに収束する。前記の中央吹出口６のガイド蓋12と整流底板３とは平行である。なお、吹出口６の隙間は1.0 ｍｍ〜1.5 ｍｍである。 The A route flowing to the flue gas pressure supply cylinder D1 and the B route flowing to the compressed air supply cylinder 11 for rectification are divided into two, first, the compressed air for rectification passes through the B route via the connection portion 10, It passes through the compressed air supply cylinder 11 and enters the straightening chamber R. The compressed air that has entered the straightening chamber R is discharged from the central blowout gap 6 at the center of the lower surface of the straightening vane to all directions as shown in FIG. 3 and the peripheral blowout gap provided on the outer peripheral edge of the straightening vane as shown in FIG. The air is ejected from the center 7 toward the center and converges to the exhaust duct D. The guide lid 12 of the central outlet 6 and the straightening bottom 3 are parallel. In addition, the clearance gap of the blower outlet 6 is 1.0 mm-1.5 mm.

図４のように前記底板３の外周が上向きに湾曲し、その先端８が水平に内向きに曲がって、整流板中板５の外周との間に互いに平行な隙間７が形成されている。この隙間７も1.0 ｍｍ〜１.5ｍｍである。隙間６、７から噴出される風量は小さいが、風速が速いので、回りの油煙などの汚れを引き込んで、排気ダクトＤに送出する。このような増速が円滑となるように整流が行われる。 As shown in FIG. 4, the outer periphery of the bottom plate 3 is curved upward, and the tip 8 is bent inward horizontally to form mutually parallel gaps 7 with the outer periphery of the straight plate 5. The gap 7 is also 1.0 mm to 1.5 mm. Although the amount of air blown out from the gaps 6 and 7 is small, the wind speed is high, so dirt such as oil smoke around it is drawn in and sent out to the exhaust duct D. Rectification is performed so that such acceleration is smooth.

また、底板３下面の負圧の風は油煙を迅速に吸引してフード外周開口９へ運び、中板５上面と水平端８間の水平隙間７で発生された負圧の風が油煙などの汚れを迅速に中央の排気ダクトＤへ運ぶ。なお、底板３の下面や中板５の上面に空気の膜が介在するため、油煙などの汚れが付着することはない。 Also, the negative pressure wind on the lower surface of the bottom plate 3 sucks oil smoke quickly and carries it to the hood outer peripheral opening 9, and the negative pressure wind generated in the horizontal gap 7 between the upper surface of the middle plate 5 and the horizontal end 8 is oil smoke etc. The dirt is quickly transported to the central exhaust duct D. In addition, since a film of air intervenes on the lower surface of the bottom plate 3 and the upper surface of the middle plate 5, dirt such as oil smoke does not adhere.

図５は、本発明のレンジフードの側面図で、ファンＦの側面が図示されている。図６は、図５の下部の整流板の拡大図である。ファンＦから出た圧風の流れる経路は図２と同じであり、ファンＦから出た圧風は、ＡルートとＢルートとに分かれて、Ａルートは排気ダクトＤ１に送風され、Ｂルートは、圧風供給筒11を通り、整流室Ｒ内に入る。整流室Ｒに入った圧風は、図６のように整流器Ｒの下面中央に有る中央隙間６から底板３下面に高速で噴出されるので、負圧で周りの油煙などの汚れが引き込まれる。底板３と中板５間に吹き込まれた圧風は、整流板の外周縁に設けた外周隙間７から中央に向けて噴出され、負圧となる。そして、底板３下側の汚染層を吸い込んで、中央の排気ダクトＤに送出する。
ファンＦの下側のレンジフード面積が小さいので、整流板を形成する寸法も短く形成される。 FIG. 5 is a side view of the range hood of the present invention, the side of the fan F being illustrated. FIG. 6 is an enlarged view of the straightening vane in the lower part of FIG. The flow path of the compressed air from the fan F is the same as in FIG. 2, and the compressed air from the fan F is divided into the A route and the B route, the A route is blown to the exhaust duct D1, and the B route is , Passes through the compressed air supply cylinder 11 and enters the flow straightening chamber R. Since the compressed air that has entered the straightening chamber R is ejected at high speed from the central gap 6 at the center of the lower surface of the rectifier R to the lower surface of the bottom plate 3 as shown in FIG. 6, dirt such as oil smoke around is drawn under negative pressure. The compressed air blown between the bottom plate 3 and the middle plate 5 is spouted toward the center from the outer peripheral clearance 7 provided on the outer peripheral edge of the straightening vane, and becomes negative pressure. Then, the contaminated layer on the lower side of the bottom plate 3 is sucked and sent to the central exhaust duct D.
Since the area of the range hood under the fan F is small, the dimension for forming the straightening vane is also short.

図７は、整流装置の全容を示す上方斜視図、図８は平面図であり、中央に４本の圧風供給筒11が立っている。この圧風供給筒11の中をファン出口Ｗから降下した圧風は底板３下面に吸引された油煙を、レンジフード外周の隙間７から矢印のように圧風供給筒11の間の空間から中央の排気ダクトＤに移送される。 FIG. 7 is an upper perspective view showing the whole of the rectifying device, and FIG. 8 is a plan view, in which four compressed air supply tubes 11 stand at the center. The compressed air that has descended from the fan outlet W in the compressed air supply cylinder 11 causes the oil smoke drawn to the lower surface of the bottom plate 3 to flow from the gap 7 around the range hood outer periphery to the center from the space between the compressed air supply cylinder 11 Is transferred to the exhaust duct D of the

この圧風供給筒11の付近に油煙などの汚れが集まるので、図９のように、圧風供給筒11を取り囲むように鎖線で示すフィルターｆを配設してある。フィルターｆを筒状に形成した場合、外面下部に油受けを溝状に設けて、液状の油を回収できる構造にしてある。なお、ファンＦから出た圧風の割合は、排気口80％、整流器20％程度を想定している。 Since dirt such as oil smoke gathers in the vicinity of the compressed air supply cylinder 11, a filter f indicated by a chain line is disposed so as to surround the compressed air supply cylinder 11, as shown in FIG. When the filter f is formed in a cylindrical shape, an oil receiver is provided in the lower part of the outer surface in the form of a groove so that liquid oil can be recovered. In addition, the ratio of the compressed air which came out of the fan F assumes about 80% of exhaust ports and 20% of rectifiers.

以上のように、レンジフードに付属のファンから出た圧風の全部を排気ダクトに送り、その流れで１厨房で発生し油煙や汚れを、レンジフード外周の隙間から吸引して排気ダクトに送る構造であるため、厨房で発生した油煙や汚れがファンを通過することは無く、従って、レンジフードに付属のファンが、厨房で発生し油煙や汚れで汚染されることはあり得ない。 As described above, all compressed air from the fan attached to the range hood is sent to the exhaust duct, and oil smoke and dirt generated in one kitchen by the flow are sucked from the gap in the outer periphery of the range hood and sent to the exhaust duct Because of the structure, no oil smoke or dirt generated in the kitchen passes through the fan, so the fan attached to the cooker hood can not be contaminated with oil smoke or dirt generated in the kitchen.

Ｆ ファン
１ フード天板
２ 整流板
３ 整流底板下
４ 油煙出口
5 整流板上面
6 整流板下面吹出口
7 整流板外周縁吹出口
9 フード外周開口部10 コネクション部
11 圧風供給筒
８ 湾曲先端
Ｇ 下向き隙間
Ｄ 排気ダクト
ＤＳ 排煙ダクト
ｆ フィルター（濾過器）

F Fan 1 Hood top plate 2 Rectifying plate 3 Rectifying bottom plate 4 Oil smoke outlet
5 Current plate top
6 Straight plate bottom outlet
7 Straight plate outlet
9 hood peripheral opening 10 connection
11 compressed air supply cylinder 8 curved tip G downward clearance D exhaust duct DS exhaust duct f filter (filter)

Claims (5)

ファンで発生した圧風の半分以上を片方のルートから排気ルートに送り、残りはもう一方のルートから整流ルートに２分して送風し、整流ルートを二つに分けて、片方は整流板の底板の下層に送り、もう一方は整流板の中板と前記底板との間の補助層に送り、この補助層から出た圧風はレンジフード外周の隙間から前記中板の上面を経て前記排気ルートに向けて噴出させることを特徴とするレンジフードの汚染防止方法。 More than half of the pressure generated by the fan is sent from one route to the exhaust route, and the rest is divided into two from the other route to the rectification route and blown, and the rectification route is divided into two . The lower layer is sent to the lower layer of the bottom plate, and the other is sent to the auxiliary layer between the middle plate of the current plate and the bottom plate, and the compressed air coming out of the auxiliary layer passes from the gap of the range hood outer periphery through the upper surface of the middle plate and the exhaust. pollution methods range hood, characterized in that jetting toward the root. ファンを囲んだケーシングの出口と排気ダクトと整流板との間に配設された仕切りてあって、ファンで発生し前記出口から出た圧風を２分して半分以上を排気ルートに送風し、残りを整流ルートに送風して、整流ルートに送られた圧風を整流板の底板の下層に送る中央隙間を有し、整流板の中板と前記底板との間の補助層に送った圧風を、レンジフード外周に配設した隙間から前記中板の上面を経由して前記排気ルートに向けて噴出させる構造としたことを特徴とするレンジフードの汚染防止構造。 A partition is provided between the outlet of the casing surrounding the fan, the exhaust duct, and the current plate, and the compressed air generated by the fan and coming out of the outlet is divided into two, and more than half is blown to the exhaust route. The rest was blown to the straightening route, and the compressed air sent to the straightening route was sent to the auxiliary layer between the middle plate of the straightening plate and the bottom plate with a central gap to send the compressed air to the lower layer of the bottom plate of the straightening plate.圧風a pollution prevention structure of the range hood through the gap which is arranged in the hood periphery, characterized in that the structure for ejecting toward the exhaust route via the upper surface of the insertion plate. ファンで発生し前記ケーシングの出口から出た圧風を整流ルートに送る１以上の圧風管を囲むようにフィルターを設けてあることを特徴とする請求項２に記載のレンジフードの汚染防止構造。 Pollution of the range hood according to claim 2 you, characterized in that is provided with a filter so as to surround one or more圧風tube Send圧風exiting from the outlet of the casing occurs at the fan to the rectifying route Structure . 前記中板の上に配設した天井壁の上側から前記中板の下側に送風する１以上の圧風管を配設し、前記圧風管の存在しない空間から前記中板の上面を経由した圧風が前記排気ルートに向って送風される構造であることを特徴とする請求項２又は請求項３に記載のレンジフードの汚染防止構造。 One or more air-blowing tubes that blow air from the upper side of the ceiling wall disposed above the mid-plate to the lower side of the mid-plate are disposed, and the space above the mid-plate passes through the upper surface of the mid-plate. The structure for preventing contamination of a range hood according to claim 2 or 3, wherein said compressed air is blown toward said exhaust route . 前記天井壁の外周は下向きに湾曲しており、前記底板の下層に向かって吸引された汚れは、前記湾曲の内側を経て、前記レンジフード外周の隙間から噴出した負圧で吸引される構造であることを特徴とする請求項４に記載のレンジフードの汚染防止構造。 The outer periphery of the ceiling wall is curved downward, and the dirt sucked toward the lower layer of the bottom plate passes through the inside of the curve and is sucked by the negative pressure ejected from the gap of the outer periphery of the range hood. pollution prevention structure of the range hood according to claim 4, characterized in that.
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