JP2007247920A - Range hood - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a range hood capable of removing oily smoke without using a filter. <P>SOLUTION: In this range hood, oily smoke and dust collide with a straightening plate 9 of a range hood lower face, and pass through a baffle mechanism 8 after sucked from a suction opening 1, when cooking is started. Here, as a flow line of an exhaust gas is changed approximately at a right angle, the oily smoke and dust in the exhaust gas collide with the baffle mechanism 8. As the oily smoke and dust are collected by the baffle mechanism 8, contamination of a ventilation flue 7 behind the baffle mechanism 8 can be significantly reduced. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to removing dirt from a range hood.

  Conventionally, a filter or the like has been attached to the range hood for the purpose of collecting oily smoke or dust generated by cooking. Since this filter is contaminated with use, performance deteriorates and oil dripping occurs from the collecting part, so it is necessary to perform regular cleaning. Moreover, although the effort of cleaning is reduced by sticking the commercially available disposable nonwoven fabric to a suction inlet etc., there was also a danger of catching fire by the fire generated by cooking.

  In addition, in order to reduce the time and effort of these cleanings, by reducing the opening area and narrowing the suction space to the lower surface of the range hood, the suction flow velocity is increased to cause collisions with obstacles, so that the fat and oil content in the exhaust gas can be reduced. (See, for example, Patent Document 1).

  Hereinafter, the exhaust device will be described with reference to FIG.

As shown in FIG. 5, in the range hood 101 installed above the cooking utensil, the waste gas sucked from the narrow suction space 102 with a high flow velocity comes into contact with the immediately following waste gas collision plate means 103 and changes its direction. Then, the fat and oil contained by the centrifugal separation action by the suction force of the exhaust means 104 is attached to the waste gas collision plate means 103, and the attached oil and fat is recovered by the recovery means 105.
Japanese Patent Laying-Open No. 2005-226915 (FIG. 1)

  In such a conventional range hood, in order to increase the suction flow velocity, it is necessary to provide a suction space in the periphery as viewed from the lower surface of the range hood. In addition, since the suction space is provided with a plurality of concave and convex surfaces, there is a problem that cleaning by removal during cleaning becomes difficult.

  The present invention solves such a conventional problem, and can be easily cleaned while simplifying the structure of the suction portion, and can separate and collect oil smoke in the exhaust gas. The purpose is to provide food.

  In order to achieve the above object, the range hood of the present invention is installed above or around the cooker, and changes the flow line of the intake air of the exhaust gas in the range hood having the suction port, the discharge port, and the exhaust fan. This is a range hood characterized by having a baffle mechanism that can be used.

  By this means, it is possible to provide a range hood capable of collecting oil smoke in exhaust gas without using a filter.

  The other means is characterized in that a plurality of suction portions are installed.

  By this means, it is possible to provide a range hood capable of treating oily and dirt in the exhaust gas before diffusion.

  Another means is that a plurality of suction portions having baffle mechanisms are installed in the exhaust path.

  By this means, it is possible to provide a range hood capable of improving the collection efficiency of oil smoke in the exhaust air.

  Another means is that the baffle mechanism is integrated with the suction portion rectifying plate.

  By this means, a range hood that can be easily attached and detached can be provided.

  Further, the integrated baffle mechanism and rectifying plate can be detached from the hood portion and separated.

  By this means, it is possible to provide a range hood that can be removed and divided during cleaning.

  Another means is that a baffle mechanism integrated with a baffle mechanism has an inclination with respect to a horizontal plane, and can be used as an oil receiving part for storing oil and fat components of exhaust gas collected by the baffle mechanism.

  By this means, it is possible to provide a range hood capable of collecting the collected fat and oil components in the oil receiving portion.

  Another means is such that a part of the bent portion of the baffle mechanism has an opening.

  By this means, it is possible to provide a range hood capable of collecting oil smoke in the baffle mechanism by causing disturbances in the streamlines when passing through the baffle mechanism and the opening.

  The other means has a plurality of opening areas at the opening of the bent portion of the baffle mechanism.

  By this means, since the baffle mechanism has a plurality of opening areas, it is possible to provide a range hood capable of collecting oil smoke in the baffle mechanism by causing disturbance of streamlines when passing through the opening.

  Another means is to provide irregularities on the surface shape of the baffle mechanism.

  By this means, it is possible to provide a range hood in which exhaust gas containing oil smoke collides with a baffle plate having an increased surface area and oil smoke collecting performance is improved.

  The other means has a function capable of lowering the temperature in the baffle mechanism.

  By this means, it is possible to provide a range hood capable of collecting oil smoke when the oil smoke in the exhaust gas becomes the dew point temperature or lower.

  Another means is a baffle mechanism having a raised shape with a metal toothbrush at the tip of the bent portion.

  By this means, it is possible to provide a range hood capable of collecting oil smoke in the exhaust gas.

  Another means is that the opening area of the suction port changes in the baffle mechanism.

  By this means, the stream hood is disturbed when passing through the opening, thereby providing a range hood that can collect the oily smoke in the baffle mechanism.

  The other means is a baffle mechanism provided with a damper.

  By this means, the stream hood is disturbed when passing through the opening, thereby providing a range hood that can collect the oily smoke in the baffle mechanism.

  Another means is a baffle mechanism in which the baffle mechanism and the current plate are water-repellent processed.

  By this means, it is possible to provide a range hood capable of easily cleaning oily smoke during cleaning.

  Another means is a baffle mechanism in which the baffle mechanism and the baffle plate are processed to be hydrophilic.

  By this means, it is possible to provide a range hood capable of easily cleaning oily smoke during cleaning.

  According to the present invention, in a range hood that is installed above or around a cooker and has a suction port, a discharge port, and an exhaust fan, a baffle mechanism that can change the flow line of the suction air is provided. By this means, it is possible to provide a range hood capable of collecting and collecting oil smoke in the exhaust gas on the baffle mechanism without using a filter.

  Another means is that a plurality of baffle mechanisms for the suction portion are installed. By this means, it is possible to provide a range hood capable of collecting oil smoke by exhausting from a plurality of suction portions without the exhaust gas during cooking being diffused.

  The other means is installed in the exhaust path a plurality of times. By this means, it is possible to provide a range hood capable of causing oil smoke in the exhaust gas to collide with the baffle mechanism a plurality of times.

  The other means is integrated with the current plate of the suction portion. By this means, it is possible to provide a range hood that can handle the baffle mechanism and the current plate integrally.

  Another means is that the baffle mechanism and the rectifying plate integrated with each other can be detached from the hood portion and divided. By this means, it is possible to divide and remove, so that a range hood with improved cleaning performance can be provided.

  Another means is that the baffle mechanism and a part of the rectifying plate are inclined with respect to the horizontal plane. By this means, it is possible to provide a range hood that can be used as an oil receiving part that accumulates oil and fat components of the exhaust gas collected by the baffle mechanism.

  Another means is that a part of the bent portion of the baffle mechanism has an opening. By this means, it is possible to provide a range hood capable of collecting oil smoke in the baffle mechanism by causing disturbances in the streamlines when passing through the baffle mechanism and the opening.

  Another means is that the opening of the bent portion of the baffle mechanism has a plurality of types of opening areas. By this means, it is possible to provide a range hood capable of collecting oil smoke in the baffle mechanism by causing disturbances in the streamlines when passing through the baffle mechanism and the opening.

  Another means is to provide irregularities on the surface shape of the baffle mechanism. By this means, it is possible to provide a range hood whose collection performance is improved by increasing the collection area of the oil smoke in the exhaust gas.

  The other means can reduce the member temperature of the baffle mechanism. By this means, the temperature of the oil smoke in the exhaust gas is lowered and the dew point temperature is reduced to the following, whereby a range hood capable of increasing the oil smoke adhering to the surface of the baffle surface can be provided.

  Another means is that the bent portion of the baffle mechanism has a raised shape. By this means, it is possible to provide a range hood capable of improving the performance of collecting oil smoke in the exhaust gas.

  Another means is that the opening area of the suction port of the baffle mechanism can be changed by the operation of the exhaust fan. By changing the opening area in accordance with the exhaust air volume by this means, it is possible to provide a range hood capable of improving the oil smoke collecting performance due to disturbance of streamlines.

  Another means is that the damper is provided at the bent portion in the baffle mechanism. By this means, it is possible to provide a range hood that can secure a suction port according to the amount of exhaust air.

  Another means is a water repellent finish in the baffle mechanism and the current plate. The range hood which can suppress adhesion of dirt by this means can be provided.

  Another means is that the hydrophilicity is processed in the baffle mechanism and the current plate. By this means, it is possible to provide a range hood that can easily remove dirt.

  The invention according to claim 1 of the present invention is installed above or around the cooker, has a suction port, a discharge port, and an exhaust fan, so that the stream line of the suction air of the exhaust gas can be changed. Providing the projection shape on the flat plate has the effect of changing the streamline of the suction airflow and collecting the oil smoke in the exhaust gas by inertial collision.

  Further, the invention according to claim 2 of the present invention is capable of effectively collecting exhaust gas oil smoke by installing the baffle mechanism of the content of claim 1 at a plurality of locations on the lower surface of the hood portion. Have

  Further, in the invention according to claim 3 of the present invention, in addition to the contents of claim 1 or 2, the baffle mechanism is installed in the exhaust passage a plurality of times, so that the oily smoke of the exhaust gas can be efficiently collected. Has the effect of being able to.

  Further, in the invention according to claim 4 of the present invention, the baffle mechanism is integrated with the current plate in addition to the contents of claims 1 to 3. This means has an effect that it can be easily attached and detached.

  In addition to the content of claim 4, the invention according to claim 5 of the present invention is such that the integrated baffle mechanism and the current plate are removed and divided. By this means, the baffle mechanism and the rectifying plate are removed and divided, and the cleaning can be easily performed.

  Further, in the invention described in claim 6 of the present invention, in addition to the contents of claim 4 or 5, a part of the rectifying plate integrated with the baffle mechanism has an inclination with respect to the horizontal plane and is collected by the baffle mechanism. By setting it as the oil receiving part which stores the fat and oil component of exhaust gas, it has the effect | action which can collect the collected fat and oil component in an oil receiving part.

  In addition to the contents of claims 1 to 6, the invention according to claim 7 of the present invention has a part of the bent portion of the baffle mechanism having an opening, thereby exhausting air due to turbulence in the baffle mechanism and the opening. It has the effect | action which can improve the collection of fats and oils in gas.

  In addition to the contents of claim 7, the invention according to claim 8 of the present invention has an opening area of a plurality of sizes in the opening of the bent part of the baffle mechanism, so that the air flow by the baffle mechanism and the opening is provided. It has the effect | action which can improve the collection of fats and oils in exhaust gas by disturbance.

  In addition, the invention according to claim 9 of the present invention has oil-smoke collection performance by having exhaust gas collide with a baffle mechanism having an increased surface area by having irregularities in the surface shape in addition to the contents of claims 1-8. Has the effect of improving.

  The invention according to claim 10 of the present invention is provided with a Peltier element capable of lowering the temperature in the baffle mechanism having the contents of claims 1 to 9, thereby reducing the temperature of the oil smoke in the exhaust gas. It has the effect of improving the collection performance.

  Further, according to the eleventh aspect of the present invention, the bent portion of the baffle mechanism having the contents of the seventh to tenth aspects has a brushed metal shape so that the surface area is increased, and oil smoke is captured. It has the effect | action which can improve collection efficiency.

  The invention according to claim 12 of the present invention is such that the opening area of the suction port can be changed in the baffle mechanism of the contents of claim 1. By changing the opening area in accordance with the amount of exhaust air by this means, there is an effect that the oil smoke collecting performance can be improved by the disturbance of streamlines.

  In addition, the invention according to claim 13 of the present invention has the effect of improving the collection of oil smoke according to the exhaust air volume by providing a damper at the bent portion of the baffle mechanism in the contents of claims 1 and 12. Have.

  Moreover, the invention described in claim 14 of the present invention is obtained by subjecting the contents of claims 1 to 13 to water repellent finishing. Thereby, it has the effect | action which can clean a baffle mechanism easily at the time of cleaning.

  Further, the invention described in claim 15 of the present invention is obtained by subjecting the contents of claims 1 to 13 to a hydrophilic treatment. By this means, the baffle mechanism can be easily cleaned during cleaning.

(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIGS. 1 is a side sectional view of a range hood according to a first embodiment of the present invention. As shown in FIGS. 1 to 3, a hood 2 provided with a suction port 1 for collecting oil smoke generated from the cooker or dust floating around the cooker (not shown) is provided above or around the cooker (not shown). The hood 2 is provided with a discharge port 4 that communicates with the outside via a duct 3 that communicates with the outside. A motor 5 and an exhaust fan 6 are provided inside the hood 2, and suction is performed through the exhaust fan 6. A ventilation path 7 connecting the mouth 1 and the discharge outlet 4 is formed. Further, a rectifying plate 9 having a baffle mechanism 8 that can be detached independently from the lower surface of the range hood is disposed near the suction port 1 of the hood 2. Further, the baffle mechanism 8 provided in the rectifying plate 9 which has been subjected to fluorine processing on both sides as water repellent processing is provided on the front side and both side surfaces of the hood 2. The baffle mechanism 8 only needs to be able to change the streamline of the airflow. For example, there is a baffle plate that changes the streamline of the airflow.

  In the above configuration, when the operation of the exhaust fan 6 is started when cooking with the cooker, the oil smoke and dust collide with the rectifying plate 9 on the lower surface of the range hood, and then are sucked from the suction port 1 and then pass through the baffle mechanism 8. . At that time, since the streamline is changed to a substantially right angle, the oil smoke and dust in the exhaust gas are subjected to inertial collision with the baffle mechanism 8. Therefore, since oil smoke and dust are collected in the baffle mechanism 8, dirt due to oil smoke is significantly reduced in the ventilation path 7 after the baffle mechanism 8.

  Further, the current plate 9 is inclined from the front toward the back side toward the lower part of the end so that the collected oil is accumulated. The oil receiver 10 is installed at the lowermost part of the rectifying plate 9 so as to receive the oil accumulated in the rectifying plate 9. The oil receiver 10 can be freely attached and detached according to the amount of oil accumulated. Moreover, since each rectifying plate 9 is held on the main body of the hood 2 by the fastener 11, it can be removed in accordance with the dirt of each rectifying plate 9.

  As described above, according to the first embodiment of the present invention, it is possible to remove oily smoke and dust in the exhaust gas without providing a filter, so that the frequency of cleaning can be reduced. Further, even when cleaning is performed, the current plate 9 can be selected and removed according to the state of the dirt and cleaned.

  In addition, even when the water glass-type coating material containing the silanol group which has hydrophilicity is given with respect to the baffle plate 9, the effect does not change even if cleaning performance improves.

  In addition to the planar shape on the metal surface of the bent portion of the baffle mechanism 8, the end of the baffle mechanism 8 having a net-like shape, punching filter or corrugated shape is used depending on the application and required collection performance. Even if the opening area is changed or the brushed shape and the metal brush can be attached and detached, the surface area of the bent part can be increased and the exhaust gas streamlines can be disturbed. Any method may be used for improvement.

  Further, the inclination of the rectifying plate 9 can be arbitrarily determined, and it is conceivable that the vicinity of the central portion of the rectifying plate is made a concave portion to serve as an oil receiving portion.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. FIG. 4 is a side sectional view of the range hood according to the second embodiment of the present invention.

  As shown in the figure, a cooling device 12 is mounted inside the hood 2, and the baffle mechanism 8 is cooled by the cooling device 12, and the baffle mechanism 8 has a low temperature compared to the temperature of the surrounding hood 2 members. Become. It is conceivable to use a Peltier element for the cooling / heating device 12.

  Further, the bent portion of the baffle mechanism 8 has a damper mechanism 13 that can change the opening area in accordance with the operating air volume of the exhaust fan 6. The damper mechanism 13 is assumed to be a metal flat plate, but can be said to have the same function as long as it is a non-combustible material.

  In the above configuration, when the exhaust fan 6 is operated during cooking and passes through the baffle mechanism 8 through the baffle mechanism 8, the baffle mechanism 8 has a member temperature lower than the ambient temperature by the Peltier element, and the exhaust gas. Since the oil smoke and water vapor contained therein are cooled, the exhaust gas containing a large amount of water vapor has a dew point temperature or lower. When the exhaust gas is rapidly cooled, the state change occurs and liquefies, so that the oil smoke in the exhaust gas has a large particle size. Therefore, it is easily attached to the baffle mechanism 8 and collected. Further, the opening area of the damper mechanism 13 is changed by the change of the wind pressure, because the opening area is moved corresponding to the air volume by the damper mechanism 13. Therefore, the oil smoke can adhere to the damper mechanism 13 because the turbulent flow is easily formed by changing the flow line of the oil smoke. From the above, it is possible to effectively collect oil smoke without using a filter.

  A plurality of baffle mechanisms 8 such as baffle plates are provided, and a bent mechanism of the baffle mechanisms 8 is provided with a damper mechanism 13 that can change the opening area in accordance with the operating air volume of the exhaust fan 6, and the opening of the arbitrary baffle mechanism By changing the area by the damper mechanism 13, it becomes possible to efficiently collect the oily smoke.

  With the configuration in which a plurality of baffle mechanisms are held in the ventilation path, the present invention can also be applied to an exhaust device that collects oily and dirt dirt by the baffle mechanism.

Side surface sectional view which shows the range hood of Embodiment 1 of this invention Front view showing the current plate Diagram showing the current plate and baffle mechanism Side surface sectional view which shows the range hood of Embodiment 2 of this invention Figure showing a conventional exhaust system

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Suction port 2 Hood 3 Duct 4 Discharge port 5 Motor 6 Exhaust fan 7 Ventilation path 8 Baffle mechanism 9 Current plate 10 Oil receiver 11 Fastener 12 Cooling device 13 Damper mechanism

Claims (15)

A range hood that is installed above or around the cooker and has a suction port, a discharge port, and an exhaust fan, and is equipped with a baffle mechanism that can change the flow line of the intake air of the exhaust gas. hood. The range hood according to claim 1, wherein a plurality of baffle mechanisms are installed. The range hood according to claim 1 or 2, wherein a plurality of baffle mechanisms are installed in the exhaust path. The cooker hood according to any one of claims 1 to 3, further comprising a rectifying plate that regulates the flow of the airflow in front of the suction port, wherein the rectifying plate and the baffle mechanism are integrated. The range hood according to claim 4, wherein the baffle mechanism and the current plate integrated with each other can be detached from the hood portion and divided. The range hood according to claim 4 or 5, wherein the baffle mechanism and the rectifying plate are inclined so that they can be used as an oil receiving part for collecting oil and fat components of the exhaust gas collected by the baffle mechanism. The range hood according to any one of claims 1 to 6, wherein the baffle mechanism includes a bent portion, and a part of the bent portion has an opening. The range hood according to claim 7, wherein the opening of the bent portion of the baffle mechanism has a plurality of opening areas. The range hood according to any one of claims 1 to 8, wherein the surface shape of the baffle mechanism is provided with irregularities. The range hood according to any one of claims 1 to 9, wherein a temperature can be lowered in the baffle mechanism. The range hood according to any one of claims 7 to 10, wherein a tip of the bent portion of the baffle mechanism has a raised shape. The range hood according to claim 1, wherein the opening area of the suction port of the baffle mechanism changes according to the amount of exhaust air. The range hood according to claim 1 or 12, wherein an opening area of an arbitrary baffle mechanism can be changed in accordance with an exhaust air volume. The range hood according to any one of claims 4 to 13, wherein both surfaces of the baffle mechanism and the current plate are water-repellent. The range hood according to any one of claims 4 to 13, wherein in the baffle mechanism, both surfaces of the current plate are hydrophilically processed.

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