JP2012007831A - Indoor circulation type range hood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an indoor circulation type range hood having a dehumidifying function for removing moisture of water vapor of contaminated air generated by cooking, and capable of implementing the dehumidifying function with a simple configuration.SOLUTION: The indoor circulation type range hood includes an air cooling part 16 having the dehumidifying function for cooling the circulating air and removing the moisture of the water vapor in an air flow passage 13 in which the contaminated air generated by cooking circulates, and capable of providing the dehumidifying function with the simple configuration.

Description

  The present invention relates to an indoor circulation type range hood that sucks contaminated air generated by cooking, purifies the contaminated air, and blows it out indoors.

Conventionally, a ventilation fan or a range hood that is provided around a gas cooking appliance and exhausts combustion gas (such as carbon dioxide), odor, and water vapor generated by cooking to the outside has been used.
This is performed mainly for the purpose of preventing adverse effects on the human body due to combustion gas generated by cooking, and contamination of the indoor environment by odors and water vapor.
However, in recent years, with the popularization of electromagnetic induction heating cooking utensils, indoor circulation type range hoods have been developed that blow out the polluted air generated by cooking into the room without exhausting it outdoors.

That is, since cooking gas (carbon dioxide or the like) is not generated in cooking using an electromagnetic induction heating cooking utensil, it is not always necessary to exhaust to the outdoors as long as odors, oils and fats can be removed from the contaminated air.
Therefore, it becomes possible to remove the above-mentioned oil and fat, odor, etc. by passing the contaminated air containing oil and fat and odor generated by cooking through various filters provided in the apparatus, and then blow out again into the room. .
What employs this mechanism is an indoor circulation type range hood (see, for example, Patent Document 1).

However, fats and oils and odors can be sufficiently removed by the advancement of various filter technologies. However, when cooking such as boiled food or steamed food that generates a lot of water vapor for a long time, these It is difficult to completely remove moisture from water vapor, that is, dehumidify, and a portion of the moisture is blown out into the room, so that condensation and mold are likely to occur in the room.
In order to solve this problem, there has been proposed an indoor circulation type range hood provided with means such as positively heating by using a Peltier module to completely dehumidify (for example, see Patent Document 2).

JP 2007-32915 A Japanese Patent Laying-Open No. 2005-069535

As described above, the conventional indoor circulation type range hood has a problem that it cannot be completely dehumidified when cooking with a large amount of water vapor is performed for a long time.
Moreover, if it is an indoor circulation type range hood using a Peltier module as a dehumidifying means, it is possible to solve the above-mentioned problem. However, the Peltier module includes a Peltier element, a power source for energizing the Peltier element, and an energization control unit. There is a problem that the cost becomes high with a large-scale apparatus equipped with the above.

In addition, when dehumidification is performed using a Peltier element, electric power for operating the Peltier element is necessary, and extra heat is generated in the entire apparatus. That is, the air is cooled and dehumidified, but the indoor air is warmed by using the Peltier element, which causes the indoor environment to deteriorate.
In addition, instead of cooling with Peltier elements, it is conceivable to dehumidify using a cooling system that uses a compressor and a condenser that are usually used in air conditioners. In this case, too, to operate the compressor and condenser Excessive heat is generated and the indoor environment is deteriorated. Of course, it is only necessary to provide a compressor and a compressor outside the room as in an ordinary air conditioner. However, in that case, the installation becomes large, and the design cost as well as the device itself becomes high.
As described above, when dehumidification is performed using a device that cools by using some kind of electric power, heat is generated for driving the device, so that the entire device is accompanied by extra heat and the indoor environment is reduced. Causes it to worsen. Therefore, it is not desirable to use it for an indoor circulation type range hood.

  The present invention is intended to solve the problem related to the dehumidifying function of removing moisture from water vapor generated by cooking, which the above-described conventional indoor circulation range hood has, and removes water from water vapor generated by cooking. It is intended to have a dehumidifying function that can be removed, to provide a dehumidifying function with a simple configuration, and to prevent heat generation due to dehumidification.

The present invention includes a range hood body 10 having a suction port 11 for sucking contaminated air generated by cooking, and an air flow path 13 communicating with an air outlet 12 provided facing the room,
A blower 14 for circulating contaminated air in the air flow path 13;
Deodorizing means 15 provided in the air flow path 13 for adsorbing and deodorizing odors from contaminated air;
An air cooling unit 16 for cooling the air flowing through the air flow path 13;
The air cooling unit 16 is an air circulation type range hood that uses tap water and is cooled by contact with circulating air to remove moisture from the water vapor and dehumidify it.

  In the present invention, the air cooling unit 16 is provided with a water pipe 20 through which tap water circulates in the air flow path 13 and dehumidifies by adhering water vapor to the surface of the water pipe 20 as condensed water. It can be set as the indoor circulation type range hood made like this.

  In this way, by using the water pipe 20 as the air cooling unit 16, it is possible to provide a dehumidifying function with a simple configuration that does not use a power source or a control unit.

  In the present invention, a water pipe 20 through which tap water flows is provided in thermal contact with a part of the outer surface of the range hood body 10 that forms the air flow path 13, thereby allowing the air flow of the range hood body 10 to flow. An air circulation type range hood in which a part of the inner surface forming the path 13 is the air cooling unit 16 can be provided.

In this way, the dehumidifying function can be provided with a simple configuration that does not use a power source or a control unit.
And since the air which distribute | circulates the air flow path 13 does not touch the water pipe 20 directly, the extra air flow resistance by the water pipe 20 can be eliminated.

  In the present invention, the air cooling unit 16 is a heat storage body 22 having a size that can store a sufficient amount of heat with a material having a high thermal conductivity, and is in thermal contact with the water pipe 20 through which tap water flows. The air circulating range hood in which the air flowing through the air flow path 13 of the range hood main body 10 is in thermal contact with the heat storage body 22 can be obtained.

  In this way, cold energy is sufficiently accumulated in the air cooling unit 16 when not cooking, and the air flowing through the air flow path 13 is cooled by the air cooling unit 16 in which the cold energy is sufficiently accumulated during cooking. Dehumidification can be performed well.

  In the present invention, an indoor circulation type range hood in which the water receiving tray 17 is detachably attached in the air flow path 13 of the range hood main body 10 located below the water pipe 20 can be provided.

  If it does in this way, the dew condensation water adhering to the surface of the water pipe 20 can be collect | recovered with the water receiving tray 17, and can be drained out of the range hood main body 10. FIG.

  ADVANTAGE OF THE INVENTION According to this invention, while having a dehumidification function which can remove a water | moisture content from the water vapor | steam generate | occur | produced by cooking, the dehumidification function can be given with a simple structure.

It is a longitudinal cross-sectional view which shows the 1st Embodiment of this invention. It is a longitudinal cross-sectional view which shows the 2nd Embodiment of this invention. It is a longitudinal cross-sectional view which shows the 3rd Embodiment of this invention. It is a longitudinal cross-sectional view which shows the 4th Embodiment of this invention.

As shown in FIG. 1, the indoor circulation type range hood 1 includes a range hood main body 10.
The range hood main body 10 includes an air flow path 13 that communicates the suction port 11 and the air outlet 12, a blower 14 that circulates air through the air flow path 13, a deodorizing means 15 provided in the air flow path 13, An air cooling unit 16 for cooling the air flowing through the air flow path 13 is provided.
The deodorizing means 15 is provided on the downstream side of the blower 14, and the air cooling unit 16 is provided on the downstream side of the deodorizing means 15.
The suction port 11 faces the cooking utensil 2 so that contaminated air generated by cooking can flow toward the suction port 11.
The air outlet 12 is provided facing the room.

By driving the blower 14, the contaminated air generated by cooking is sucked from the suction port 11, and the odor is adsorbed and deodorized from the contaminated air by the deodorizing means 15 to purify, and the purified air is cooled by the air cooling unit 16. Then, the cooled air is blown out into the room from the outlet 12.
Since it is like this, the polluted air generated by cooking can be purified and cooled and blown out indoors.

When water vapor is contained in the polluted air generated by the above-described cooking, the water vapor is cooled by the air cooling unit 16 to remove moisture and dehumidify, so that water does not blow out from the air outlet 12 into the room. You can
The air cooling unit 16 uses tap water, cools by touching the circulating air, removes moisture from the water vapor, and dehumidifies. The air cooling unit 16 can have a dehumidifying function with a simple configuration and dehumidifies. Sometimes no fever.

  Since it is like this, it has a dehumidifying function that can remove moisture from water vapor generated by cooking, it can have a dehumidifying function with a simple configuration, does not generate heat for dehumidification, Does not deteriorate the environment.

The air cooling unit 16 is preferably provided with a water pipe 20 through which tap water circulates in the air flow path 13 so that the circulating air touches and circulates the water pipe 20.
In this way, when water vapor in the air touches the water pipe 20, dew condensation occurs on the surface of the water pipe 20, and moisture in the water vapor adheres to the surface of the water pipe 20 as condensed water and is removed.
Moreover, it can be set as the simple structure which does not use a power supply and a control part.

Next, details of each part will be described.
The cooking utensil 2 is an electromagnetic induction heating cooking utensil and is installed on the upper part of a cooking utensil stand (kitchen cabinet) 3. In FIG. 1, the inside of the cooking utensil 2 is not shown.
The cookware table 3 is a face-to-face system in which the front wall 3a and the rear wall 3b are exposed to the room, and the above-described range hood body 10 is attached in the space portion 4 near the rear surface of the cookware table 3. Accordingly, the indoor circulation type range hood 1 is provided on the cooking utensil table 3.

  The range hood body 10 has a lower body 10a provided with a blower 14, a deodorizing means 15, and an air cooling unit 16, and an upper body 10b continuous with the upper part of the lower body 10a. The lower body 10a is the space described above. While being provided in the part 4, the upper main body 10b protrudes upward from the upper surface 3c of the cooking utensil stand 3, and the suction port 11 is formed in the upper main body 10a.

The lower portion 10c of the lower body 10a fits into the opening 5 formed near the lower portion of the rear surface 3b of the cooking utensil table 3, and the air outlet 12 is formed on the upper portion of the lower portion 10c. A water receiving tray 17 is provided so as to be inserted and withdrawn from the lower part.
The water receiving tray 17 is located below the water pipe 20 (air cooling unit 16), and as described above, the dew condensation water generated on the surface of the water pipe 20 due to contact with water vapor drops on the water receiving tray 17. It can be recovered.
Then, as shown by phantom lines in FIG. 1, the water collection tray 17 is extracted from the range hood main body 10 and the cooking utensil base 3, thereby draining the collected condensed water and inserting it again into the range hood main body 10.

The air cooling unit 16 is preferably provided with heat absorption fins for efficiently absorbing heat from the contaminated air. For example, an endothermic fin 21 is provided on the surface of the water pipe 20.
As a result, heat can be efficiently transferred from the contaminated air to the water pipe 20, so that the dehumidification efficiency is improved.

In the blower 14, a sirocco fan 14b is rotatably provided in a case 14a, and the sirocco fan 14b is driven by a motor 14c.
The inlet 14 d of the case 14 a faces the suction port 11 and the outlet 14 e faces the deodorizing means 15.
The deodorizing means 15 is a deodorizing filter.

Next, a second embodiment of the present invention will be described.
As shown in FIG. 2, the range hood main body 10 is attached to the wall surface 6, and the indoor circulation type range hood 1 is provided in an upper position separated from the cooking utensil 2 (not shown).
In short, the indoor circulation type range hood 1 of the present invention is provided around the cooking utensil 2.
The range hood main body 10 includes a hood 30, a box 31 having an open lower surface attached to the upper surface of the hood 30, and a box-shaped case 32 having an open lower surface provided in the box 31.
A rectifying plate 33 is attached in the hood 30, and a suction port 11 is provided between the rectifying body 33 and the hood 30.
An air outlet 12 is formed near the upper portion of the front wall 31 a of the box 31.
A space 34 is formed between the inner surface of the box 31 and the case 32, and the space 34 opens indoors at the air outlet 12.
The blower 14 is attached to the lower portion of the case 32, the inlet 14 d of the blower 14 communicates with the suction port 11 through the hood 30 inside the case 32, and the outlet 14 e of the deodorizing means 15 provided at the upper portion of the case 32. It communicates with the inlet side, and the outlet side of the deodorizing means 15 is in open communication with the space 34.
As a result, the range hood main body 10 has an air flow path 13 communicating the suction port 11 and the air outlet 12.

  An air cooling unit 16, for example, a water pipe 20, is disposed in the space 34, and the air purified by the deodorizing means 15 touches the water pipe 20, so that moisture on the surface of the water pipe 20 is condensed on the surface of the water pipe 20. The moisture is removed from the water vapor by adhering to the surface of the water pipe 20 as condensed water. An endothermic fin 21 is provided on the surface of the water pipe 20.

As described above, since air is blown from the lower side of the water pipe 20, it is difficult to provide a water receiving tray below the water pipe 20 as shown in FIG.
Therefore, by disposing the water pipe 20 in the space 34 as an oblique posture inclined with respect to the horizontal, the condensed water adhering to the surface of the water pipe 20 flows along the surface of the water pipe 20, A drainage hole is formed on the lower side of the water pipe 20 of the box 31 or a small water receiving tray is provided.

  In the first and second embodiments described above, the water pipe 20 as the air cooling unit 16 is disposed in the range hood main body 10 so that air (water vapor) directly touches the water pipe 20. The pipe 20 may be provided in thermal contact with the outer surface of the range hood main body 10 so that air (water vapor) contacts the water pipe 20 through the range hood main body 10.

For example, as shown in FIG. 3, the water pipe 20 is thermally attached to the outer surface of the upper wall 31 b of the box 31 constituting the range hood body 10 (that is, a part forming the air flow path 13 of the range hood body 10). It arrange | positions in contact and the inner surface of the upper wall 31b is used as the air cooling part 16. FIG.
In this way, the purified air that has flowed into the space 34 touches the inner surface of the upper wall 31b of the box 31 so that the water vapor in the air is cooled by the tap water flowing through the water pipe 20, By adhering to the inner surface of the upper surface 31b of the box 31 as condensed water, moisture can be removed from the water vapor.
An endothermic fin 21 is provided on the inner surface of the upper wall 31 b of the box 31.

  In this case, it is preferable to improve the heat conduction portion of the portion where the water pipe 20 of the range hood main body 10 (box body 31) is in thermal contact.

  If it carries out as mentioned above, since the water pipe 20 does not become the air resistance of the air which distribute | circulates the air flow path 13 of the range hood main body 10, the excess air resistance by the water pipe 20 can be eliminated.

  In the above-described embodiment, the air cooling unit 16 is the water pipe 20 and a part (the upper wall 31b of the box 31) that forms the air flow path 13 of the range hood body 10, but the air cooling unit 16 is the water pipe 20 Apart from the range hood main body 10, the air cooling part 16 is made of a material having high thermal conductivity (for example, copper, aluminum, iron, etc.) and has a size capable of storing a sufficient amount of heat. Then, the water pipe 20 may be brought into thermal contact with the air cooling unit 16 so that cold energy is stored in the air cooling unit 16 when not cooking.

Thereby, since the contaminated air is cooled by the air cooling unit 16 in which cold heat is sufficiently accumulated during cooking, dehumidification can be performed efficiently.
Here, the size that can store a sufficient amount of heat is an amount that can store more than the amount of heat generated in one cooking. For example, the temperature of the contaminated air flowing into the range hood during cooking is about 60 ° C., but the amount of heat that can keep cooling this air during cooking (for example, 1 hour) can be stored.

Specifically, as shown in FIG. 4, a part (the upper wall 31b portion of the box body 31) forming the air flow path 13 of the range hood body 10 is separated from the range hood body 10 (box body 31). The plate-shaped heat storage body 22 having a predetermined thickness and plane size is made of a material having a high thermal conductivity, and the purified air is in thermal contact with the surface 22a of the heat storage body 22 toward the range hood main body 10. Thus, the air cooling unit 16 is obtained.
A water pipe 20 through which tap water circulates is provided on the outer surface 22b of the heat storage body 22 opposite to the range hood body 10 in thermal contact therewith.

Then, the tap water is constantly circulated through the water pipe 20, so that cold heat can be stored in the heat storage body 22 (air cooling unit 16) when not cooking.
An endothermic fin 21 is provided on the inner surface 22 a of the heat storage body 22.

  In the above description, the upper wall 31b portion of the box body 31 is formed by the heat storage body 22, but the above-described heat storage body 22 may be provided in thermal contact with the outer surface of the upper wall 31b of the box body 31. .

  DESCRIPTION OF SYMBOLS 1 ... Indoor circulation type range hood, 2 ... Cooking utensil, 10 ... Range hood main body, 11 ... Suction port, 12 ... Discharge port, 13 ... Air flow path, 14 ... Blower, 15 ... Deodorizing means, 16 ... Air cooling part, 17 ... Water receiving tray, 20 ... Water pipe, 21 ... Endothermic fin, 22 ... Heat storage body.

Claims (5)

A range hood body 10 having an air inlet 13 for sucking contaminated air generated by cooking, and an air passage 13 communicating with an air outlet 12 provided facing the room;
A blower 14 for circulating contaminated air in the air flow path 13;
Deodorizing means 15 provided in the air flow path 13 for adsorbing and deodorizing odors from contaminated air;
An air cooling unit 16 for cooling the air flowing through the air flow path 13;
The air cooling unit 16 uses tap water, cools by touching the circulating air, removes moisture of water vapor, and dehumidifies the air-circulating range hood.   The said air cooling part 16 provided the water pipe 20 in which a tap water distribute | circulates in the air flow path 13, and it was made to dehumidify by the water | moisture content of water vapor | steam adhering to the surface of the water pipe 20 as dew condensation water. The indoor circulation type range hood according to 1.   The water channel 13 of the range hood body 10 is formed by providing a water pipe 20 through which tap water circulates in thermal contact with a part of the outer surface forming the air channel 13 of the range hood body 10. The air circulation type range hood according to claim 1, wherein a part of the inner surface is an air cooling part 16.   The air cooling unit 16 is a heat storage body 22 of a size that can store a sufficient amount of heat with a material having high thermal conductivity, and is in thermal contact with a water pipe 20 through which tap water circulates on the outer surface thereof. The air circulation type range hood according to claim 1, wherein the air flowing through the air flow path 13 of the range hood main body 10 is in thermal contact.   The indoor circulation type range hood according to claim 2, wherein a water receiving tray (17) is detachably mounted in the air flow path (13) of the range hood main body (10) at a position below the water pipe (20).

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