JPH0979636A - Range hood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a range hood which is capable of reducing a fatty component of oil mist deposited on the inside of an exhaust vent passage. SOLUTION: A fan 7 having a drain hole on the lower part is provided inside a hood main body 4 where a spray nozzle is provided on the end of a water supply pipe 19 by way of a pump 18 so as to spray moisture to oil mist to be sucked up to a fan 7. A water pan 12 is provided, which is designed to support the lower end of a grease filter 14, which catches a fatty component and receives drain which drops from the drain hole 8 of the fan 7 while a water pipeline 11 provided on the water pan 12 is connected to the pump 18 so as to circulate the drain water.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a range hood which is mainly installed above a cooker in a kitchen and removes oil smoke generated during cooking and exhausts it to the outside.

[0002]

2. Description of the Related Art In recent years, cooking has become more frequent at home as food conditions have improved, and as a result, range hoods for removing oil fumes generated during cooking and exhausting them to the outside have become widespread.

Since the range hood is contaminated with oil smoke when used, there is an increasing demand for a range hood that is easy to clean.

A conventional range hood of this type is shown in FIG.
Will be described with reference to. As shown in the figure, it is provided on the wall 102 on the upper side of the cooker 101 installed in the kitchen,
A blower 106 that discharges the oil smoke generated from the cooker 101 to the outside 105 is provided inside the hood body 104 that opens the lower surface and serves as a suction port 103, and a discharge port 107 of the blower 106 communicates with the outside 105. Exhaust duct 108
Was connected.

The blower 10 inside the hood body 104
In front of the suction port 109 of No. 6, a grease filter 110 for collecting oil and fat components contained in oil smoke was detachably arranged.

With the above structure, when the blower 106 is operated, oil smoke generated from the cooker 101 flows into the inside of the hood body 104 through the suction port 103, passes through the grease filter 110, and then the suction port 10 of the blower 106.
9 is sucked into the blower 106. And
Most of the oil and fat components of the oil smoke are collected when passing through the grease filter 110, and then the oil smoke is discharged to the outside 105 through the inside of the blower 106 and the inside of the exhaust duct 108. By periodically removing and cleaning the grease filter 110 contaminated with oil smoke, oil and fat components are prevented from adhering to the inside of the blower 106 and the inside of the exhaust duct 108.

[0007]

In the structure of such a conventional range hood, the grease filter 110 collects the oil and fat components of oil smoke by the grease filter 110.
10 inside the blower 106 and the exhaust duct 108
Although it is possible to reduce the adhesion of oil and fat components to the inside of the oil to some extent, the oil and fat component collection performance of the grease filter 110 is generally about 50 to 60% because of the balance with the suction resistance to the blower 106. Only the grease filter 1 can be secured without being collected.
The oil and fat component that has passed through 10 is discharged to the outside 105 while adhering to the inside of the exhaust ventilation passage such as the inner wall surface of the blower 106 or the inner wall surface of the exhaust duct 108, which causes the germs and odor. . Then, in order to clean the contaminated part, there is a problem that it is not a place where it can be easily touched by simply removing the removable grease filter 110, and the blower 106 or the like needs to be disassembled for cleaning.

The present invention solves the above problems and provides a range hood capable of reducing the adhesion of oil and fat components of oil smoke passing through a grease filter and sucked by a blower to the inside of an exhaust ventilation passage. This is the first purpose.

The second object is to keep the inside of the blower always clean and to reuse the water for washing.

A third object is to keep the inside of the blower clean and refill it with water for washing.

[0011]

In the range hood of the present invention, the first means for achieving the above-mentioned first object is to provide a box-shaped hood main body having an opened lower surface, and a hood main body provided inside the hood main body. , A blower having a drain hole at the bottom, a water supply pipe provided with a pump that operates in conjunction with a range hood operation switch, a spray nozzle provided at the end of this water supply pipe, and oil and fat components contained in oil smoke. A grease filter for collecting and a water pan that is connected to the drain pipe connected to the pump and supports the lower end of the grease filter,
The spray nozzle is provided so that moisture is sprayed onto the oil smoke sucked by the blower, and the drain hole of the blower is arranged on the water pan.

In order to achieve the second object, the second
This means has a structure in which a water purifier for collecting oil and fat components contained in water in the drain pipe is arranged in the middle of the drain pipe connected to the pump.

In order to achieve the third object, the third
The means comprises a tap water supply pipe connected to a drainage pipe connected to the inlet side of the pump, and a solenoid valve operated by a wash water replenishing switch in the tap water supply pipe.

[0014]

According to the present invention, when the blower is operated by the structure of the first means, the high temperature oil smoke generated during cooking is sucked into the blower while most of the oil and fat components are collected by the grease filter. . Then, the oil smoke containing the oil and fat component that has passed through the grease filter without being separated by the grease filter is sucked into the blower while being mixed with the mist-like moisture ejected from the spray nozzle, and the oil and fat component of the oil smoke is blown by the blower. Inside, it is condensed into mist-like water while being condensed into sewage, which flows out from the drain hole of the blower into the water pan, and is again jetted from the spray nozzle through the water supply pipe by the pump.

Further, with the configuration of the second means, the sewage flowing out from the drain hole of the blower to the water pan is jetted from the spray nozzle after being purified by the water purifier when passing through the drain pipe. .

With the configuration of the third means, when the wash water replenishing switch is operated, tap water is replenished as wash water from the tap water supply pipe and sprayed from the spray nozzle through the water supply pipe.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIG.

As shown in the figure, inside the hood body 4 which is provided on the wall 2 on the upper side of the cooking device 1 and whose lower surface is opened to serve as the suction port 3, the oil smoke 5 generated from the cooking device 1 is exposed outdoors. 6
A blower 7 for discharging the air is provided, a drain hole 8 is opened in the lower part of the blower 7, and an exhaust duct 10 communicating with the outdoor 6 is connected to a discharge port 9 provided in the upper part of the blower 7.

Below the blower 7 inside the hood body 4, a dish-shaped water pan 12 to which a drain pipe 11 is connected.
Is provided so as to project from the inner wall surface of the rear portion of the hood body 4 so as to cover the lower portion of the blower 7.

In front of the suction port 13 of the blower 7 inside the hood body 4, a grease filter 14 for collecting the oil and fat component contained in the oil smoke 5 is arranged, and the grease filter 14 collects the oil and fat component. The lower end of the water pan 12 is supported in the vicinity of the tip of the water pan 12 so that the water pan 12 can flow into the water pan 12, and the upper end of the hood body 4
Engages with an engaging piece 15 provided on the inner wall surface of the upper part of the.

In the space 16 between the grease filter 14 inside the hood body 4 and the blower 7, a drain pipe 11 that operates in conjunction with a range hood operation switch 17 provided at the front of the hood body 4 is provided. The tip of the water supply pipe 19 provided with the connecting pump 18 is drawn in from the guide hole 20 provided in the upper portion of the hood body 4, and the water is supplied to the tip of the water supply pipe 19 toward the suction port 13 of the blower 7. A spray nozzle 21 for spraying is provided.

In the above structure, when the range hood operation switch 17 is operated to operate the blower 7, the hot oil smoke 5 generated from the cooking device 1 and rising rises from the suction port 3 into the hood body 4. Collides with the grease filter 14. Then, the oil smoke 5 temporarily stays on the upstream side of the grease filter 14 in the hood body 4 and then passes through the grease filter 14. At that time, most of the oil and fat components are removed by the grease filter 14, but the oil smoke 5 containing the oil and fat components that could not be collected by the grease filter 14 is pumped by the pump 18 that is operated in conjunction with the range hood operation switch 17. Then, it is sucked into the blower 7 through the drain pipe 11 and the water supply pipe 19 while being mixed with the mist-like water sprayed from the spray nozzle 21.
Then, the oil and fat components of the oil smoke 5 are condensed while being cooled into mist-like water inside the blower 7, mixed with the water and flowing out from the drain hole 8 of the blower 7 to the water pan 12, and the drain pipe 1
It is returned to the water supply pipe 19 by the pump 18 through 1.

On the other hand, the oil and fat component collected by the grease filter 14 flows down through the grease filter 14, flows out from the lower end of the grease filter 14 into the water pan 12, and from the drain hole 8 of the blower 7. It will be returned to the water supply pipe 19 through the drain pipe 11 and the pump 18 together with the outflowing sewage.

As described above, according to the range hood of the first embodiment of the present invention, the grease filter 14 collects the oil and fat component contained in the oil smoke 5 generated during cooking, and the grease filter 14 does not collect the oil and fat. The oil smoke 5 containing the oil and fat component sucked by the blower 7 is sprayed with water by the spray nozzle 21 to collect the oil and fat component while condensing the oil and fat component, and is returned to the water supply pipe 19 by the pump 18 for recycling. The efficiency of collecting the oil and fat component can be reduced, and the oil and fat component can be prevented from adhering to the exhaust ventilation passage such as the inner wall surface of the blower 7 or the inner wall surface of the exhaust duct 10.

Next, a second embodiment of the present invention will be described with reference to FIG.
Will be described with reference to. The same parts as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in the figure, the drain pipe 11 and the pump 18
A water purifier 22 that interlocks with the range hood operation switch 17 is provided between the two.

In the above structure, for example, when the cycle in which dirty water containing oil and fat components flows out from the drain hole 8 of the blower 7 to the water pan 12 and is returned from the pump 18 to the water supply pipe 19 through the drain pipe 11, The concentration of fats and oils inside the sewage gradually increases. Then, the highly viscous sewage flows down the drain hole 8 along the inner wall surface of the blower 7, reaches the water supply pipe 19 from the water pan 12, the drain pipe 11, the pump 18, and the spray nozzle 21 to the inside of the blower 7. Is sprayed. In this cycle, drainage pipe 11 should be installed to prevent oil from adhering to the wastewater.
The wastewater discharged to the water is supplied to the water supply pipe 19 from the pump 18 while the oil and fat components are removed and purified by the water purifier 22.

As described above, according to the range hood of the second embodiment of the present invention, since the water purifier 22 that works with the range hood operation switch 17 is connected to the drain pipe 11, the pump 18 supplies the water to the water supply pipe 19. Since the generated water is always sprayed as oil-free water from the spray nozzle 21, dirt inside the blower 7 is washed and the inside of the blower 7 can be always kept clean.

Next, a third embodiment of the present invention will be described with reference to FIG.
Will be described with reference to. The same parts as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in the figure, a tap water supply pipe 2 connected to a water pipe having an electromagnetic valve 24 interlocking with a wash water replenishing switch 23 provided near the range hood operation switch 17
Drain pipe 11 whose tip is connected to the inlet side of pump 18
Connect to

In the above structure, for example, the pump 18
When a part of the water sprayed from the spray nozzle 21 through the water supply pipe 19 is discharged by the blower 7 from the discharge port 9 to the outdoor 6 through the exhaust duct 10, the amount recycled as cleaning water is reduced. Come on. In such a case, when the wash water replenishment switch 23 is operated to open the solenoid valve 24, tap water passes through the tap water supply pipe 25 and the pump 18
Is replenished to the water supply pipe 19.

As described above, according to the range hood of the third embodiment of the present invention, since the electromagnetic valve 24 operated by the wash water replenishing switch 23 is provided, the reduced wash water can be replenished with tap water. Therefore, the inside of the blower 7 can be always kept clean.

[0033]

As is apparent from the above embodiments, according to the present invention, a box-shaped hood body having an opened lower surface, a blower provided inside the hood body, and having a drain hole at the bottom thereof, A water supply pipe provided with a pump that operates in conjunction with the range hood operation switch, a spray nozzle provided at the end of the water supply pipe, a grease filter that collects oil and fat components contained in oil smoke, and the pump. And a water pan that supports the lower end of the grease filter, the spray nozzle is provided so that water vapor is sucked into the oil smoke sucked by the blower, and a drain hole of the blower is provided in the water pan. Since it is arranged above, the range hood can reduce the oil and fat components of the oil smoke that is sucked into the blower after passing through the grease filter from adhering to the inside of the exhaust ventilation passage. It can be provided.

Further, since a water purifier for collecting the oil and fat component contained in the water in the drain pipe is arranged in the middle of the drain pipe connected to the pump, purified cleaning water is sprayed and the inside of the blower is always clean. Can be kept in good condition.

Further, since the water supply pipe connected to the water supply pipe connected to the inlet side of the pump and the solenoid valve operated by the cleaning water replenishment switch are provided in the water supply pipe, recycle cleaning water is replenished. Therefore, the inside of the blower can be always kept clean with a predetermined spray amount.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an installed state of a range hood according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing an installed state of the range hood of the second embodiment.

FIG. 3 is a cross-sectional view showing an installed state of the range hood of the third embodiment.

FIG. 4 is a sectional view showing an installed state of a conventional range hood.

[Explanation of symbols]

 4 Hood main body 7 Blower 8 Drain hole 11 Drain pipe 12 Water pan 14 Grease filter 17 Range hood operation switch 18 Pump 19 Water supply pipe 21 Spray nozzle 22 Water purifier 23 Wash water replenishment switch 24 Solenoid valve 25 Tap water supply pipe

Claims (3)

[Claims] 1. A box-shaped hood body having an open bottom surface,
A blower provided inside the hood main body, having a drain hole at the bottom, a water supply pipe provided with a pump operated in conjunction with a range hood operation switch, and a spray nozzle provided at the end of the water supply pipe, A grease filter for collecting oil and fat components contained in oil smoke, a drain pipe connected to the pump, and a water pan that supports a lower end of the grease filter are provided, and the spray nozzle is used for oil smoke sucked by the blower. A range hood provided so that water is sprayed, and the drain hole of the blower is arranged on the water pan. 2. The range hood according to claim 1, wherein a water purifier for collecting oil and fat components contained in water in the drain pipe is provided in the middle of the drain pipe connected to the pump. 3. The range hood according to claim 1, further comprising a tap water supply pipe connected to a drain pipe connected to the inlet side of the pump, and a solenoid valve operated by a wash water replenishing switch on the tap water supply pipe. .