JP2013044471A - Range hood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce time and effort in cleaning an oil collecting mechanism part or an exhaust impeller where oil or dust has adhered and accumulated.SOLUTION: The range hood includes a hood 2 that is provided above or around a cooking device and that has a ventilation passage by communicating a suction port 1 for sucking the contaminated air with an air blowing casing 6 including the exhaust impeller 5, the oil collecting mechanism part 9 rotated by a driving means 17 in the ventilation passage, a cleaning casing 10 for immersing the oil collecting mechanism 9, a nozzle 11 for supplying water, a water supply pump 13, and a water discharge device 16 of wastewater dispersed in the cleaning casing 10. The oil collecting mechanism part 9 for collecting the stain is integrally formed on the exhaust impeller 5, and thereby, the oil collecting mechanism part 9 and the exhaust impeller 5 can be cleaned by the same cleaning means, and the stain such as the oil or the dust can be removed without removing the oil collecting mechanism part 9 or the exhaust impeller 5.

Description

  The present invention relates to an oil collecting mechanism attached to a range hood and removal of dirt from an impeller.

  Conventionally, this type of range hood is provided with an oil collecting mechanism for the purpose of collecting oily smoke, dust, and the like generated during cooking. Since the oil collecting mechanism part is contaminated with use, the performance deteriorates or oil dripping occurs from the collecting part, so it is necessary to periodically clean the oil collecting mechanism part. The same applies to the impeller provided for exhaust.

  In addition, as a means for automatically purifying the oil collecting mechanism for the purpose of reducing the time and effort of cleaning, there is a method of removing dirt by centrifugal force by attaching and rotating a drive device to the oil collecting mechanism. (For example, see Patent Document 1).

  Hereinafter, the range hood will be described with reference to FIG.

  As shown in FIG. 4, the dirty air 101 passes through the suction port 102, passes through the filter 104 disposed in front of the exhaust fan 103, and the driving device 105 that rotates the filter 104 and the filter 104 are dirty. The sensor 106 for detecting the contamination of the filter 104 is detected, the filter 104 is rotated by the driving device 105, and the contamination is removed by centrifugal force.

Japanese Patent Laid-Open No. 3-16439

  In such a conventional range hood, even if the oil collecting mechanism is automatically cleaned, there is no means for automatically cleaning the exhaust impeller, and the internal structure is complicated even when the exhaust impeller is removed. It had the problem that.

  Therefore, the present invention solves the above-mentioned conventional problems, without removing the oil collecting mechanism part and the exhaust impeller, and without attaching the oil attached to the oil collecting mechanism part and the exhaust impeller, An object is to provide a range hood capable of removing dirt such as dust.

  In order to achieve this object, the present invention communicates a suction port that is installed above or around a cooker and sucks contaminated air and a blower casing that contains an exhaust impeller for exhaust blower. A hood provided with a ventilation path, an oil collecting mechanism that is rotated by driving means in the ventilation path, a cleaning casing for immersing the oil collecting mechanism, a nozzle that supplies water to the cleaning casing, The oil collecting mechanism unit that collects dirt on the exhaust impeller of the exhaust device has a water supply means for supplying water to the nozzle and a collecting means for collecting sewage scattered in the cleaning casing. It is provided, and this achieves the intended purpose.

  According to the present invention, a hood that is provided above or around a cooker and that has a ventilation passage by communicating a suction port that sucks contaminated air and a blower casing that contains an exhaust impeller for exhaust blower. An oil collecting mechanism that is rotated by driving means in the ventilation path, a cleaning casing for immersing the oil collecting mechanism, a nozzle that supplies water to the cleaning casing, and water that is supplied to the nozzle By having a configuration in which the oil collecting mechanism unit that collects dirt in the exhaust impeller is provided integrally with the water supply means that performs and the collecting means that collects the sewage scattered in the cleaning casing. Since the oil collecting mechanism and the exhaust impeller can be cleaned with the same cleaning means, the oil collecting mechanism and the exhaust impeller can be exhausted without removing the oil collecting mechanism and the exhaust impeller. Such as oil and dust adhering to the impeller. Le can be removed, the effect can be obtained as.

The block diagram which shows the range hood of Embodiment 1 of this invention The perspective view which shows the impeller for exhaust of the same range hood The block diagram which shows the range hood of Embodiment 2 of this invention The perspective view which shows the impeller for exhaust of the same range hood The block diagram which shows the range hood of Embodiment 3 of this invention The perspective view which shows the impeller for exhaust of the same range hood Side view of conventional range hood

  The range hood according to claim 1 of the present invention is provided above or around the cooker, and communicates an intake port for sucking contaminated air and a blower casing containing an exhaust impeller to provide a ventilation path. A hood, an oil collecting mechanism portion that is rotated by driving means in the ventilation passage, a cleaning casing for immersing the oil collecting mechanism portion, a nozzle that supplies water to the cleaning casing, and a water supply to the nozzle. And a drainage device for sewage scattered in the cleaning casing, and the oil collecting mechanism for collecting dirt is integrally provided on the exhaust impeller. As a result, the oil collecting mechanism and the exhaust impeller can be cleaned with the same cleaning means, and the oil collecting mechanism without removing the oil collecting mechanism and the exhaust impeller without any trouble. As a result, dirt such as oil and dust adhering to the exhaust impeller can be removed.

  Moreover, you may make it the structure that the oil collection mechanism part was provided in the blade | wing part front of the exhaust impeller. As a result, dirt is collected in front of the vane portion of the exhaust impeller, so that the inflow of dirt into the vane portion of the exhaust impeller can be prevented, thereby reducing the dirt on the vane portion. There is an effect that the cleaning property can be improved.

  Further, the oil collecting mechanism portion may be provided behind the blade portion of the exhaust impeller. This increases the area of the oil collection mechanism that covers the exhaust impeller, so that the collection rate by the oil collection mechanism can be improved and the exhaust that has passed through the oil collection mechanism can be kept clean. There is an effect that it is possible.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1 and FIG. 2, a hood 2 provided with a suction port 1 for collecting fine smoke, which is oil smoke generated by cooking and dust floating around, is provided above a 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, and a blower casing 6 that includes an exhaust impeller 5 is disposed inside the hood 2. A ventilation path 7 that connects the suction port 1 and the discharge port 4 via the impeller 5 is formed.

  In addition, a flat rectifying plate 8 is provided in the vicinity of the suction port 1 in the hood 2, and an oil collecting mechanism portion 9 for collecting oil and dust is provided in the exhaust impeller 5. The exhaust casing 5 has a cleaning casing 10 for immersing the exhaust impeller 5 and the oil collecting mechanism 9, and a nozzle 11 is provided in the blower casing 6 and above the cleaning casing 10. It has been. The nozzle 11 communicates with the water storage device 12 through a water supply pump 13 to form a water supply means 14. Water in the water storage device 12 can be supplied to the nozzle 11 by the water supply pump 13, and water can be supplied into the cleaning casing 10 from the nozzle 11.

  A small hole 15 is provided at the lower end of the cleaning casing 10, and the small hole 15 can be opened and closed by a valve (not shown) provided in the vicinity of the small hole 15. The small hole 15 is formed by a valve (not shown). By opening the sewage, the sewage scattered in the cleaning casing 10 can be drained from the small holes 15 and recovered to the drainage device 16.

  In the above configuration, dirt such as oil and indoor dust generated during cooking is sucked into the hood 2 from the suction port 1 around the rectifying plate 8 by rotating the exhaust impeller 5 by the driving means 17. The oil is collected and accumulated in the oil collecting mechanism 9 installed together with the impeller 5 for use. On the other hand, the purified air after passing through the oil collecting mechanism section 9 is discharged from the discharge port 4 to the outside through the duct 3 by the exhaust impeller 5. In the process, oil and dust are also accumulated in the exhaust impeller 5.

  The dirt of the air that initially passes through the oil collecting mechanism unit 9 collides with a portion (hereinafter referred to as the meat portion 18) other than the opening of the oil collecting mechanism unit 9 and is collected, and in the case of oil, the oil collecting mechanism. When the opening of the portion 9 passes, it also adheres to the boundary between the opening and the meat portion 18, and dirt such as dust adheres to and accumulates on the attached oil, thereby blocking the opening of the oil collecting mechanism portion 9 and clogging. This will cause a decrease in the exhaust air volume. Similarly, in the exhaust impeller 5, oil and dust sucked into the hood 2 from the suction port 1 around the rectifying plate 8 adhere to and accumulate on the blade portion 19 of the exhaust impeller 5, thereby causing wind in the impeller 5. The flow of air will change, leading to a decrease in the exhaust air volume.

  Therefore, the oil collecting mechanism 9 and the exhaust impeller 5 are cleaned. First, the oil collecting mechanism 9 and the exhaust impeller 5 are rotated by the driving means 17 and at the same time, the water storage device 12 by the water supply pump 13. The water stored in is pumped up and supplied to the nozzle 11. The water in the water storage device 12 is supplied in advance. The water sprayed from the nozzle (not shown) of the nozzle 11 collides with the meat part 18 of the oil collecting mechanism 9 and the dirt adhering to the meat part 18 due to water intervening between the meat part 18 and the dirt. And the water collides with the oil and dust accumulated in the oil collecting mechanism portion opening 20 when passing between the oil collecting mechanism portion opening 20 and the blade portion 19 of the exhaust impeller 5. Thus, the dirt film is crushed, peeled and removed, and is washed by being scattered from the oil collecting mechanism 9 and the exhaust impeller 5 by a centrifugal force by rotation.

  The oil collecting mechanism opening 20 is preferably large in order to prevent clogging due to dirt such as oil or dust, but is preferably small on the dirt collecting surface. In order to satisfy the function as a range hood, the shape, width, length, and arrangement of the openings can be appropriately determined in consideration of the balance between these two conflicting phenomena.

  Moreover, since the residual water after the injection accumulated in the washing casing 10 having a water storage structure contains dirt, the oil collecting mechanism 9 is washed intermittently and floats in the washing casing 10 during washing. Even if the dirt that has been collected reattaches to the oil collecting mechanism 9, the water once used for cleaning is drained by opening a valve (not shown), and the oil collecting mechanism 9 is rotated while the nozzle is rotated. By spraying water from 11 to several times, dirt adhering to the entire oil collecting mechanism section 9 and the entire exhaust impeller 5 can be washed away.

  Further, the water injected from the injection hole 17 of the nozzle 11 is stored in the cleaning casing 10, and the oil collecting mechanism 9 and the exhaust impeller 5 are rotated by the driving means 17 in this state, whereby the oil collecting mechanism. The portion 9 and the exhaust impeller 5 can rub against and collide with water to remove dirt.

(Embodiment 2)
3 and 4, the same components as those in FIG. 1 are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIGS. 3 and 4, in the second embodiment, the oil collecting mechanism 9 is provided in front of the blade portion 21 of the exhaust impeller 5.

  In the above configuration, dirt such as oil and indoor dust generated during cooking is sucked into the hood 2 from the suction port 1 around the rectifying plate 8 by rotating the exhaust impeller 5 by the driving means 17, and oil trapping is performed. It is collected and accumulated in the collecting mechanism section 9. On the other hand, since the purified air flows into the exhaust impeller 5, contamination of the exhaust impeller 5 is reduced.

(Embodiment 3)
5 and FIG. 6, the same components as those in FIG.

  As shown in FIGS. 5 and 6, in the third embodiment, the oil collecting mechanism 9 is provided at the rear 22 of the blade portion of the exhaust impeller 5.

  In the above configuration, dirt such as oil and indoor dust generated during cooking is sucked into the hood 2 from the suction port 1 around the rectifying plate 8 by rotating the exhaust impeller 5 by the driving means 17 and is used for exhaust. It passes through the impeller 5 and is collected and accumulated by the oil collecting mechanism 9. In this case, the area of the oil collecting mechanism 9 that covers the exhaust impeller 5 is increased as compared with the case where the oil collecting mechanism 9 is provided in front of or in the center of the blade. The collection rate can be improved, and thereby the exhaust gas that has passed through the oil collecting mechanism 9 can be kept clean. Further, when the exhaust impeller 5 is rotated, the centrifugal force acting on the dirt on the oil collecting mechanism portion 9 is more from the center of rotation than when the oil collecting mechanism portion 9 is provided in front of or in the center of the blade portion. Since the distance can be secured, it becomes large, and dirt can be effectively blown off from the oil collecting mechanism 9 or the exhaust impeller 5.

  The structure that removes dirt with water and centrifugal force can also be applied to a ventilation device that collects dirt with an oil collecting mechanism or the like and installs it in a place where maintenance and maintenance of the oil collecting mechanism are difficult.

DESCRIPTION OF SYMBOLS 1 Suction port 2 Hood 3 Duct 4 Discharge port 5 Exhaust impeller 6 Blower casing 7 Ventilation path 8 Current plate 9 Oil collecting mechanism part 10 Washing casing 11 Nozzle 12 Water storage device 13 Water supply pump 14 Water supply means 15 Small hole 16 Drainage device 17 Driving means 18 Meat part 19 Blade part 20 Oil collecting mechanism part opening 21 Blade part front 22 Blade part rear

Claims (3)

A hood that is installed above or around the cooker and that communicates a suction port that sucks contaminated air and a blower casing that contains an exhaust device for exhaust ventilation, and a hood provided with a ventilation path, and a drive means for the ventilation path An oil collecting mechanism that rotates by means of: a cleaning casing for immersing the oil collecting mechanism; a nozzle that supplies water to the cleaning casing; a water supply means that supplies water to the nozzle; and the cleaning casing A range hood having a collecting means for collecting sewage scattered in the exhaust hood, wherein the oil collecting mechanism for collecting dirt is integrally provided on an exhaust impeller of the exhaust device. The range hood according to claim 1, wherein the oil collecting mechanism portion is provided in front of the blade portion of the exhaust impeller. The range hood according to claim 1, wherein the oil collecting mechanism is provided behind the blade of the exhaust impeller.

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