JP2007032928A - Range hood - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a range hood improved in cleaning property by having a fan driven by a motor, a casing and a collecting hood, having a duct with a jet nozzle inside, at a suction port of the collecting hood, and sucking air by an induction effect. <P>SOLUTION: The range hood has the fan 2 driven by the motor; the hood 3 for collecting oil smoke by the fan, and a filter for collecting the oil smoke; and a duct 8 having the jet nozzle 6 and a guide 7 mounted to surround the jet nozzle inside. Air is induced and sucked from the suction port 5 by an induction effect with a jet from the jet nozzle 6. As a result, air containing oil smoke does not contact the fan 2. Oil does not therefore stick to the fan 2 to improve cleaning property. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a range hood used in a kitchen or the like.

  Conventionally, this type of range hood has been used in homes and offices (see, for example, Patent Document 1).

  Hereinafter, this type of range hood will be described with reference to FIG.

  As shown in FIG. 7, the front plate 102 of the range hood 101 is inclined, a filter 103 and a suction port 104 are provided on the upper portion of the front plate 102, and a centrifugal fan 105 is provided therein.

With the above configuration, when the centrifugal fan 105 rotates, air containing oil smoke flows along the front plate 102, air containing oil smoke is sucked from the suction port 104, oil is collected by the filter 103, and oil is collected. The collected air is exhausted through the centrifugal fan 105. However, the air containing oil that could not be collected by the filter 103 is exhausted through the centrifugal fan 105, but adheres to the centrifugal fan 105 when exhausted, and the centrifugal fan 105 is inside the range hood 101. Is difficult. The dust removal performance of the filter 103 for removing oil is about 60 to 90%, and the remaining 10 to 40% of the oil smoke flows out to the filter 103 without being collected and removed, and is exhausted through the centrifugal fan 105. Therefore, the centrifugal fan 105 is exposed to air containing dust and dust that has been collected and removed by the filter 103 but remains without being collected and removed, and oil adheres to it.
Japanese Patent Laid-Open No. 1-107039

  In such a conventional range hood, cooking oily smoke cannot be completely captured by the filter, and adheres to the fan and is difficult to clean, so that it is required to improve the cleaning property.

  The present invention solves such a conventional problem, and provides a range hood with improved cleaning performance in which oil does not adhere to the fan by sucking air by an attractive effect without allowing the fan to pass through. It is an object.

  In order to achieve the above object, the range hood of the present invention includes a fan driven by an electric motor, a suction port for sucking air containing oil smoke, a discharge port for blowing out air, a collection hood for collecting oil smoke, and the above-described collection hood. The suction port has a filter that collects and collects oily smoke in the air including the oily smoke collected by the collection hood and sucked from the suction port, and a duct that guides the air to the discharge port, and does not pass through the fan. The air containing the oily smoke is sucked from the air and the air in which the oily smoke is collected by the filter is exhausted to the discharge port.

  According to the present invention, since air containing oil smoke does not pass through the fan, oil smoke does not adhere to the fan, and a range hood with improved cleaning performance, which is a problem, can be obtained.

  The other means includes a fan driven by an electric motor, a suction port for sucking air containing oil smoke, a discharge port for blowing out air, a collection hood for collecting oil smoke, and the suction hood collected by the collection hood. A filter for collecting and collecting oil smoke in the air including oil smoke sucked from the mouth, a duct for guiding the air to the discharge port, a jet nozzle for jetting the air, and a guide surrounding the nozzle, the jet nozzle being the fan So that the air containing oil smoke is sucked from the suction port due to the attraction effect by the jet, and the air in which the dust is collected by the filter is exhausted to the discharge port. It is what.

  According to the present invention, since air containing oil smoke does not pass through the fan, oil smoke does not adhere to the fan, and a range hood with improved cleaning performance, which is a problem, can be obtained.

  Another means is a range hood having a plurality of jet nozzles arranged in parallel, a plurality of suction ports, and a single discharge port.

  According to the present invention, since air containing oil smoke does not pass through the fan, oil smoke does not adhere to the fan, and a range hood with improved cleaning performance, which is a problem, can be obtained.

  Another means is that a plurality of jet nozzles are installed in parallel, and one suction port and one discharge port are provided.

  According to the present invention, since air containing oil smoke does not pass through the fan, oil smoke does not adhere to the fan, and a range hood with improved cleaning performance, which is a problem, can be obtained.

  Another means is that one jet nozzle is provided and a plurality of suction ports are installed in parallel.

  According to the present invention, since air containing oil smoke does not pass through the fan, oil smoke does not adhere to the fan, and a range hood with improved cleaning performance, which is a problem, can be obtained.

  Another means is that a jet nozzle is provided inside the duct, and an oil recovery box is installed at the lower part of the inner wall surface in the duct.

  According to the present invention, since air containing oil smoke does not pass through the fan, oil smoke does not adhere to the fan, and a range hood with improved cleaning performance, which is a problem, can be obtained.

  Another means is to install the fan outdoors.

  According to the present invention, since air containing oil smoke does not pass through the fan, oil smoke does not adhere to the fan, and a range hood with improved cleaning performance, which is a problem, can be obtained.

  According to the present invention, since air containing oil smoke does not pass through the fan, it is possible to provide a range hood with improved cleanability, which does not cause oil smoke to adhere to the fan.

  The present invention includes a fan driven by an electric motor, a suction port that sucks air containing oil smoke, a discharge port that blows out air, a collection hood that collects oil smoke, and the suction by the collection hood. A filter that collects and collects smoke in the air containing the generated smoke, a duct that guides the air to the discharge port, a jet nozzle that jets the air, and a guide that surrounds the nozzle, and the jet nozzle blows out air from the fan In the direction of the discharge port, and by the attraction effect by the jet flow, the air containing the oil smoke is sucked from the suction port, and the air in which the dust is collected by the filter is discharged to the discharge port. Yes, it can be exhausted without passing through the fan, so oil smoke that could not be collected by the filter does not adhere to the fan, and a range hood with improved cleanability can be provided. Can.

  Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1)
FIG. 1 is a cross-sectional view of a range hood according to Embodiment 1 of the present invention.

  In FIG. 1, a fan 2 driven by an electric motor 1, a hood 3 for collecting oil smoke, and a filter 4 for collecting and collecting oil smoke in the air including oil smoke collected by the hood 3 are provided. Air containing oil smoke is sucked from the suction port 5, oil smoke is collected by the hood 3, and oil in the air containing oil smoke collected by the hood 3 is collected by the filter 4. A jet nozzle 6 for jetting air and a duct 8 having a guide 7 attached so as to surround the jet nozzle 6 are provided, and the blown air of the fan 2 is jetted from the jet nozzle 6.

  In the above configuration, when the fan 2 outside the duct 8 rotates, the air from the fan 2 blows out from the jet nozzle 6. Further, since the guide 7 is provided so as to surround the jet nozzle 6, a high-speed jet is generated from the jet nozzle 6, and as a result, air is attracted from the suction port 5 communicating with the duct 8, and the attracted oil smoke Is collected by the hood 3, and then dust is collected by the filter 4, and then the air containing the smoke is exhausted from the discharge port 9. The oil dust collection rate of the filter 4 is about 60 to 90%, and the remaining 10 to 40% flows out without being collected by the filter 4, but is exhausted from the discharge port 9 without passing through the fan 2. The

  As a result, the air containing the oily smoke remaining without being collected and removed by the filter 4 does not come into contact with the fan 2, so that no oil adheres to the fan 2 and the cleaning performance is improved.

(Embodiment 2)
FIG. 2 is a cross-sectional view of the range hood according to Embodiment 2 of the present invention.

  The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  A fan 2 driven by the electric motor 1, a hood 3 for collecting oil smoke, and a filter 4 for collecting and collecting oil smoke in the air including the oil smoke collected by the hood 3, and a jet nozzle inside 6 and a duct 8 provided with a guide 7 provided so as to surround the jet nozzle 6, and air blown from the fan 2 is jetted from the jet nozzle 6. Further, a plurality of jet nozzles 6 and ducts 8 are installed in parallel.

  In the above configuration, when the fan 2 rotates, a high-speed jet is generated from the jet nozzle 6, air is attracted and sucked from the suction port 5 communicating with the duct 8, and air containing oily smoke is collected by the hood 3. The smoke in the air containing the smoke collected by the hood 3 is collected by the filter 4 and exhausted from the discharge port 9 without passing through the fan 2. Since a plurality of jet nozzles 6, guides 7 and ducts 8 are installed, a large amount of air can be sucked from a wide range with a low pressure loss.

  Thereby, since the air containing oil smoke does not contact the fan 2, oil does not adhere to the fan 2 and the cleaning property is improved.

(Embodiment 3)
FIG. 3 is a cross-sectional view of the range hood according to Embodiment 3 of the present invention.

  The same parts as those in the first or second embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 3, it has a fan 2 driven by an electric motor 1, a hood 3 for collecting oily smoke, and a filter 4 for collecting and collecting oily smoke, and a jet nozzle 6 and the jet nozzle 6 inside. A duct 8 provided with a guide 7 is provided so as to surround, and the blown air of the fan 2 is jetted from the jet nozzle 6. Further, a plurality of jet nozzles 6, guides 7 and ducts 8 are installed in parallel, and one suction port 5 and one discharge port 9 are configured.

  As a result, the number of discharge pipes 10 is one and construction can be made inexpensively, and the number of suction ports 5 is also one, so that the suction force is improved and the power is exerted when it is desired to concentrate and suck.

  Thereby, the air containing the oil smoke is exhausted from the discharge port 9 without contacting the fan 2, so that no oil adheres to the fan 2 and the cleaning property is improved.

(Embodiment 4)
FIG. 4 is a cross-sectional view of the range hood according to Embodiment 4 of the present invention.

  The same parts as those in any of Embodiments 1 to 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 4, a fan 2 driven by an electric motor 1, a hood 3 that collects oil smoke, and a filter 4 that collects oil smoke are included, and a jet nozzle 6 and an inside of the jet nozzle 6 are surrounded. A duct 8 provided with a guide 7 is provided, and air blown from the fan 2 is jetted from a jet nozzle 6. Further, the jet nozzle 6 and the guide 7 surrounding the jet nozzle 6 are one, and a plurality of suction ducts 11 are installed branched from the duct 8.

  In the above configuration, the air is attracted and sucked from the plurality of suction ports 12 communicating with the plurality of suction ducts 11 by the attraction effect by the jet flow from the jet nozzle 6.

  Thereby, it is cheap and a lot of air can be sucked from a wide range. Moreover, since the air containing oil smoke does not contact the fan 2, no oil adheres to the fan 2, and the cleaning performance is improved.

(Embodiment 5)
FIG. 5 is a sectional view of the range hood according to the fifth embodiment of the present invention.

  The same parts as those in any of Embodiments 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 5, a fan 2 driven by an electric motor 1, a hood 3 for collecting oil smoke, and a filter 4 for collecting oil smoke are included, and a jet nozzle 6 and an inside of the jet nozzle 6 are surrounded. A duct 8 provided with a guide 7 is provided, and the blowing air from the fan 2 is jetted from the jet nozzle 6. Further, an oil recovery box 15 is installed at the lower part 14 of the wall surface 13 of the duct 8 having the jet nozzle 6 inside.

  Thereby, since the air containing oil smoke does not contact the fan 2, not only the cleaning of the fan 2 becomes unnecessary, but also the oil containing the oil smoke comes into contact with the wall surface of the duct 8, so that the oil flows into the duct 8. An oil recovery box 15 is provided at the lower part 14 of the wall surface 13 of the duct 8 that adheres to the wall surface 13 and falls down along the wall surface 13 of the duct 8. Since it can be easily collected, the cleaning property is further improved.

(Embodiment 6)
FIG. 6 is a sectional view of the range hood according to the sixth embodiment of the present invention.

  The same parts as those in any of Embodiments 1 to 5 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 6, it has a fan 2 driven by an electric motor 1, a hood 3 for collecting oily smoke, a filter 4 for collecting and collecting oily smoke, and a duct 8 having a jet nozzle 6 inside. The blowout air from the fan 2 is jetted from the jet nozzle 6. Furthermore, the fan 2 that blows air to the jet nozzle 6 is installed outdoors.

  In the above configuration, air is attracted from the suction port 5 communicating with the duct 8, and this attraction air is sucked from the plurality of suction ports 12 near the center of the hood 3. Moreover, the air sent to the jet nozzle 6 is sent from the fan 2 installed outdoors.

  Thereby, since the air containing oil smoke does not come into contact with the fan 2, not only cleaning of the fan 2 becomes unnecessary, but also the fan 2 is installed outdoors, so that indoor noise can be reduced.

  The range hood of the present invention does not allow air containing oily smoke to pass through the fan, so that oily smoke does not adhere to the fan, and it is possible to provide a range hood with improved cleanability that is a problem.

Side sectional view of the range hood according to the first embodiment of the present invention. Side sectional view of the range hood according to the second embodiment of the present invention. Side sectional view of the range hood of Embodiment 3 of the present invention Side sectional view of the range hood according to the fourth embodiment of the present invention. Side sectional view of the range hood according to the fifth embodiment of the present invention. Side sectional view of the range hood of Embodiment 6 of the present invention Side view of a conventional range hood

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric motor 2 Fan 3 Hood 4 Filter 5 Suction port 6 Jet nozzle 7 Guide 8 Duct 9 Discharge port 10 Discharge piping 11 Suction duct 12 Multiple suction ports 13 Wall surface 14 Lower part 15 Oil recovery box

Claims (7)

A fan driven by an electric motor, a suction port for sucking air containing oil smoke, a discharge port for blowing out air, a collection hood for collecting oil smoke, and oil smoke collected by the collection hood and sucked from the suction port A filter that collects and collects oily smoke in the air and a duct that guides air to the discharge port, and sucks air containing oily smoke from the suction port without passing through the fan; A range hood characterized by exhausting air from which dust and dirt are collected. A fan driven by an electric motor, a suction port for sucking air containing oil smoke, a discharge port for blowing out air, a collection hood for collecting oil smoke, and oil smoke collected by the collection hood and sucked from the suction port A filter that collects and collects oily smoke in the air, a duct that guides air to the discharge port, a jet nozzle that jets air, and a guide that surrounds the nozzle, and the jet nozzle discharges the blown air from the fan to the discharge port A range hood that jets in the direction, sucks air containing oily smoke from the suction port due to the attraction effect of the jet, and exhausts air collected by the filter to the discharge port. The range hood according to claim 1 or 2, wherein a plurality of jet nozzles are installed in parallel, a plurality of suction ports are provided, and one discharge port is provided. The range hood according to claim 1 or 2, wherein a plurality of jet nozzles are installed in parallel, and each has one suction port and one discharge port. The range hood according to claim 1 or 2, wherein there is one jet nozzle and a plurality of suction ports are installed in parallel. The range hood according to any one of claims 1 to 5, wherein a jet nozzle is provided inside the duct, and an oil recovery box is installed at a lower portion of the inner wall surface of the duct. The range hood according to any one of claims 1 to 6, wherein the fan is installed outdoors.

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