JP4509508B2 - Indoor circulation range hood - Google Patents

Description

The present invention relates to an indoor circulation type range hood that cleans contaminated air from a cooking utensil (CO ₂ or the like) that does not generate combustion gas and circulates it indoors.

In recent years, electromagnetic cooking utensils have become widespread as clean cooking utensils that can be cooked without generating combustion gas containing carbon monoxide and the like, and many households adopt an all-electric kitchen.
In cooking using an electromagnetic cooking utensil, no harmful combustion gas containing carbon monoxide or the like is included in the generated polluted air. Therefore, if polluted air can be sucked and cleaned, it can be circulated again indoors.
Conventionally, indoor circulation type range hoods have been provided with grease removing means inside the hood section and a deodorizing unit communicating with the blower outlet on the top plate of the hood section so that oil smoke and cooking odor contained in the contaminated air can be obtained. The thing of the structure which filters is known (for example, refer patent document 1).

However, the above-described prior art cannot recover moisture (steam) among the main components contained in the contaminated air generated by cooking.
Therefore, unless moisture (steam) contained in the polluted air is removed in a highly airtight house in recent years, the windows and walls of the room are likely to condense, and peeling of the cloth and generation of mold become a problem.
In particular, when using an electromagnetic cooking utensil, high-temperature combustion gas is not generated compared to cooking with a gas burning utensil. , Dirty around cooking utensils or make cooking ingredients unusable.
Japanese Patent Laid-Open No. 10-197023

The present invention has been made in view of the above-mentioned conventional circumstances, and its intended treatment is to remove moisture (steam) contained in contaminated air generated by cooking with a cooking utensil that does not generate combustion gas, and to remove contaminated air. An object of the present invention is to provide an indoor circulation type range hood that completely cleans the interior.
Another object of the present invention is to provide an indoor circulation type range hood that effectively utilizes heat generated from the dehumidifying means to prevent the formation of condensation on the surface of the range hood main body and the flow path portion of the contaminated air. is there.
Still another object of the present invention is to provide an indoor circulation type range hood in which the water removed by the dehumidifying means can be easily recovered and discarded.

The technical means taken to solve the above-mentioned problem is that in a range hood that forcibly sucks in polluted air generated by cooking with a cooking utensil that does not generate combustion gas with a blower, cleans the air, and then circulates it indoors. The grease removing means, the deodorizing means, and the dehumidifying means are provided downstream of the grease removing means for removing fats and oils in the contaminated air with a deodorizing means for removing odors contained in the contaminated air and a dehumidifying means for removing moisture. The Peltier module is used as the dehumidifying means, and the Peltier module is arranged such that the heat absorption part obtained by energization is arranged so that the contaminated air is in contact with the moisture contained in the heat absorption part. It is preferable that the dew generation part is in contact with the heat absorption part and a means for collecting the dew condensation generated in the heat absorption part. And it has a means to transmit the heat from the heat radiating part obtained when the Peltier module is energized to the surface of the range hood main body or the flow path of the contaminated air ( Claim 1 ).
A Peltier module is a unit formed by electrically connecting Peltier elements, which are PN / N-type semiconductor junction pairs, in series. One side is exposed to heat absorption by passing a direct current (DC), and the other side is radiating heat. By changing the direction of the current, the heat absorbing portion is converted into a heat radiating portion, and the heat radiating portion is converted into a heat absorbing portion.
This Peltier module has a quick response. It has no moving parts, has no vibration and has a long life.
If energization of the Peltier module is interlocked with the operation of the blower, an artificial switch operation is not required and operability is improved ( claim 2 ).
In addition, it is preferable that the means for collecting is a detachable collection container for receiving the condensed water flowing down after being generated, or a discharge path for receiving the condensed water and discharging it to the outside ( Claim 6 ).

According to the above means, moisture in the polluted air to be cleaned is dewed by dew condensation at the heat absorption part.
And it collect | recovers with the collection | recovery container which can be attached or detached without dripping the dew condensation water produced | generated by a heat absorption part, or it discharges | emits outside with a discharge path.

Also, if the heat absorption part is in a wet state even when the blower is stopped, mold spores etc. floating in the air adhere to this wet surface, and mold is multiplied, and when the blower is restarted, The air in contact with the mold circulates in the room and pollutes the room, causing health and hygiene problems. In order to prevent this, a configuration is adopted in which the direction of energization to the Peltier module is reversed in conjunction with the stoppage of the blower, and the heat absorbing portion is converted into a heat radiating portion for a predetermined time ( Claim 3 ).
In addition, it is not an interlocking type, and it is also free to reverse energization or stop energization by an artificial operation such as energizing or touching a switch for stopping.

  According to the above means, the heat absorbing portion is converted into the heat radiating portion and the wet heat absorbing portion is heated and dried continuously by stopping the operation of the blower without artificially reversing the energization by a switch operation or the like. Prevent mold.

The means to heat the heat transfer in the flow path of the range hood body and pollution air from the heat radiating portion obtained during energization of the Peltier module interlocked with the operation of the blower, the air heated by the heat from the heat radiating portion which is desirable when the flow path of the air to the range hood body and contaminated air is forced blowing means for heat transfer as warm air is sucked (claim 4).
And it is more preferable if a forced ventilation means has an air feed path which ventilates the said warm air in the flow path of polluted air ( Claim 5 ).

  According to the said means, the surface of the main body of the operating range hood and the flow path of contaminated air are heated using the heat from the heat radiating part of the Peltier module to prevent the occurrence of condensation.

( Claims 1 and 5 ) As described above, the present invention is provided with a dehumidifying means for positively dehumidifying so as not to circulate the moisture which is a problem in the indoor circulation type range hood, and the grease removing means and the deodorizing means. Since the moisture contained in the clean air purified by the above can be removed, condensation on windows and walls can be prevented, and generation of mold peeling off of the cloth can be prevented , and the heat absorption part of the Peltier module can be used as a condensation generation part. Since the dehumidifying means is configured to collect the condensed water that is generated and dripped at the dew generation part, moisture can be permanently removed from the contaminated air without periodic replacement like a dehumidifying agent. . In addition, the heat of the heat radiating part obtained on the opposite side when the Peltier module is energized is effectively used to blow the heat to the surface of the range hood main body and the contaminated air flow path as a heat transfer means. And generation of mold along with condensation on the road surface of the polluted air flow path.

( Claim 2 ) Since the energization of the Peltier module is linked to the operation of the blower, no special man-made operation is required.

( Claim 3 ) In addition, when the operation of the blower is stopped, the energization direction to the Peltier module is reversed to convert the heat absorbing part into the heat radiating part for a predetermined time. The portion is heated and dried to prevent the generation of mold at the endothermic portion, thereby eliminating the sanitary problem of passing clean air through the mold portion and circulating into the room. Since the heat-absorbing part is heated and dried by effectively utilizing the dehumidifying means, it is not necessary to add a dedicated heating device, and the apparatus cost can be greatly reduced.

( Claim 4 ) Since the heat of the heat dissipating part obtained on the opposite side when the Peltier module is energized is effectively utilized, the heat is forced to flow as a heat transfer means to the surface of the range hood main body or the flow path of contaminated air. In addition, the generation of mold can be prevented together with the condensation on the surface of the range hood main body and the road surface of the contaminated air flow path. In particular, forcibly sending warm air into the polluted air flow path is particularly effective in preventing the occurrence of dew condensation on the road surface of the polluted air flow path where condensation easily occurs.

  In addition, since both the dehumidifying agent and the Peltier module collect fine odor components contained in water vapor that are difficult to recover by the deodorizing means, it is possible to contribute to the improvement of the deodorizing performance.

  Hereinafter, an embodiment of the indoor circulation type range hood of the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 shows the first embodiment, FIG. 2 shows the second embodiment, Further, FIG. 3 shows the third embodiment.

Reference symbol A denotes the indoor circulation type range hood of this embodiment.
As shown in FIG. 1, the indoor circulation type range hood A is a range hood that is configured by standing a vertical case portion 21 from the top surface of the top plate 111 of a flat and thin box-shaped hood portion 11 having an open bottom surface. An air cleaning means 3 is housed in the main body 1 together with the blower unit 2.

  The vertical case portion 21 is a rectangular box with its front surface opened from the top plate 111 of the hood portion 11, and houses the blower unit 2 installed on the top surface of the hood portion top plate 111 in its lower half. In the upper half, the deodorizing means 13 and the dehumidifying means 23 and the air passage 4 communicating from the blower unit 2 to the room through the deodorizing means 13 and the dehumidifying means 23 are accommodated.

  The hood portion 11 is provided with an opening 112a at the bottom of the recessed portion 112 that is recessed in the top plate direction from the open portion, and is provided with a grease removing means (grease filter) 33 in the opening 112a so that it can be engaged and disengaged. A rectifying plate 43 is provided with a predetermined gap S between the opening and the open portion, and both sides are accelerated from the gap S to cook with a cooking utensil (electromagnetic cooking utensil, electric cooking utensil) that does not generate combustion gas. Then, the contaminated air generated is sucked.

As an example of the deodorizing means 13, a deodorant-added urethane foam is disposed below the inorganic ion adsorbent that is granulated, and the lower side of the deodorant-added urethane foam and the inorganic ion adsorbent. For example, a nonwoven fabric made of polypropylene with an antibacterial agent kneaded is placed on the upper side of the cartridge and accommodated in a cartridge made of a pair of upper and lower upper and lower boxes made of resin or metal. Examples thereof include a braided net (see Japanese Patent Application Laid-Open No. 10-197023).
Granulation of the inorganic ion adsorbent is a well-known product obtained by granulating an amorphous zinc oxide after metathesis and mixing in an extremely fine state.
In addition, the granulation of inorganic ion adsorbents has a weakly ionized surface, zinc has the property of adsorbing ionized substances by ionizing them into positive ions and silanol groups into negative ions. And both negative ions can adsorb both polar acids of acid and alkali.
Furthermore, once this inorganic ion adsorbent has been adsorbed, it does not re-release due to temperature changes or heating, it has heat resistance as well as water resistance and washing resistance, and because of its ion adsorption type, gas adsorption Is quick and also has the property of recovering deodorization performance when washed with water. Of course, ammonia, trimethylamine (fish odor), hydrogen sulfide (septic odor), methyl mercaptan and methyl mercaptan are said to be valeric acid. Effectively deodorizes phenol, NOx, etc.

The air passage 4 has a reverse L shape in a side view in which one end side is opened on the upper surface of the blower unit 2 and the other end side is opened indoors, and the deodorizing means 13 is arranged in a multistage shape on the straight portion 14. The dehumidifying means 23 is arranged in the horizontal part 24, and the air path 4, the blower unit 2 and the hood part 11 constitute a flow path 5 of contaminated air.
The blower 12 is a sirocco fan.

The dehumidifying means 23 is a Peltier module, and only the heat absorption part 231 obtained by flowing a direct current is arranged in the horizontal part 24 of the air passage 4.
Further, in this embodiment, the heat absorption part 131 has an uneven shape in which a large number of fins 231a are arranged in parallel, and the contact area with the air to be cleaned is enlarged.
The dehumidifying means 23, the deodorizing means 13, and the grease removing means 33 constitute an air cleaning means 3.

  The energization of the Peltier module is controlled to be linked to the operation of the blower 12, and further to reverse the energization direction in conjunction with the stoppage of the blower 12 to convert the heat absorption part 231 into the heat dissipation part 232 for a predetermined time.

  Further, a funnel-shaped water receiving portion 241 is recessed in the bottom surface of the horizontal portion 24 facing the Peltier module, and a detachable collection container communicating with the drain port 6 opened at the bottom of the water receiving portion 241 is provided below the funnel-shaped water receiving portion 241. 7, the cover 31 that opens and closes the front surface of the vertical case portion 21 is removed, and the collection container 7 can be removed.

  The recovery container 7 is provided with a water level detecting means (not shown) such as a water level sensor for detecting an appropriate water level that does not overflow, and a buzzer, a lamp, etc. that notify when the water level detecting means (not shown) detects. Means B is provided on the front surface of the hood section 11.

In the indoor circulation type range hood A configured as described above, a direct current flows through the Peltier module that is the dehumidifying means 23 in conjunction with the operation of the blower 12, and the heat absorbing portion 231 absorbs heat.
Contaminated air generated by cooking with a cooking utensil (electromagnetic cooking utensil, electric cooking utensil) that does not generate combustion gas removes oil and fat contained in the grease removing means 33 and cooking contained in the deodorizing means 13 The odor is deodorized and purified, and the purified contaminated air comes into contact with the heat absorbing portion 231 and moisture (steam, moisture) contained therein is condensed by the heat absorption.
Then, the condensed water to be dripped is received by the collection container 7, and when the water level is such that it does not spill, the notification means B notifies the user and prompts disposal.
In addition, when the operation of the blower 12 is stopped in conjunction with the end or stop of cooking in the cooking utensil, the heat absorbing portion 231 is automatically converted into the heat radiating portion 232 for a predetermined time, and the wet heat absorbing portion 231 is heated and dried to generate mold. Do not.

  Next, a second embodiment shown in FIG. 2 will be described. In this embodiment, heat from the heat radiating portion 232 obtained when the Peltier module is energized is transferred to the range hood body 1 and the contaminated air flow path 5. To do.

  Except for the means for transferring heat, the configuration is the same as that of the above-described embodiment.

  The transmitting means described above is the forced air blowing means 8 including the air feed path 18 and the auxiliary blower 28.

  The air feed path 18 covers the heat radiating portion 232 of the Peltier module facing the outside with a cover 38 having an auxiliary blower 28, and a through hole 281 at an arbitrary position on the upper surface of the vertical case portion 21 facing the space of the cover 38. And a through hole 101 is formed in the upper surface of the back chamber 10 secured behind the unit case 22 in the blower unit 2, and the illumination is provided over substantially the entire length in the rear end width direction of the hood portion 11. A through-hole 511 is opened on the upper surface of the case 51 so that the through-holes 281, 101, and 511 communicate with each other, a front surface 512 on which the rectifying plate 43 of the lighting case 51 faces, and a rectifying plate 43 on the hood portion 11. By opening exhaust holes 513 and 114 for ejecting warm air toward the rectifying plate 43 on the front elevation surface 113 facing each other, the inside of the vertical case portion 21 and further the hood portion 11 and the recessed portion 11 are formed. After forced air between, and to supply the hot air in the flow path 5 of the warm air ejected from the exhaust holes 513,114 in the surface direction of the current plate 43 contaminated air.

The indoor circulation type range hood A configured as described above is a range hood in which air heated by the heat continuously radiated from the heat radiating portion 232 of the Peltier module is blown by the auxiliary blower 28 as warm air when the blower 12 is operated. Heat is transferred to the main body 1 and the contaminated air flow path 5 so that steam rising during cooking does not cause condensation in the range hood main body 1 and the contaminated air flow path 5.
The polluted air channel 5 is likely to cause dew condensation because the polluted air is in direct contact with the polluted air channel 5, but the polluted air channel 5 is air heated by the heat of the heat radiating part 232 of the Peltier module from inside and outside. It will be heated by the warm air that sucks in, thus preventing the occurrence of condensation more reliably.

  Further, the second embodiment shown in FIG. 3 will be described. This embodiment is an example in which a dehumidifying agent is used for the dehumidifying means 23. Since other configurations are the same as those of the first embodiment described above, the same reference numerals are given and detailed descriptions thereof are omitted.

The dehumidifying means 23 accommodates a tablet of calcium chloride 233 in a cap 234 whose bottom opening is closed by a moisture permeable sheet 235 serving as a support film, and the cap 234 can open and close the recovery container 236 to form a unit. The cap 234 is disposed on the horizontal portion 24 of the air passage 4 so as to rest on a support arm 9 provided in a swing manner on the air passage wall, the unit case 22 of the blower unit 2 or the like.
The cap 234 has a large number of ventilation holes.

In the indoor circulation type range hood A configured as described above, moisture in the contaminated air cleaned with calcium chloride is adsorbed and removed.
Then, dewed and dripped dew condensation water or calcium chloride aqueous solution is dropped into the collection container 236 and collected, and when the amount of water stored is sufficient to prevent overflow, it is removed based on the notification by the notification means B. Can dispose of condensed water.

  In the present invention, the dehumidifying means 23 is desirably disposed downstream of the deodorizing means 13, but may be disposed between the grease removing means 33 and the deodorizing means 13.

The side sectional view of a 1st embodiment. A partially cutaway view is shown in the side view of the second embodiment. Side surface sectional drawing of 3rd Embodiment.

Explanation of symbols

1: Range hood main body 12: Blower 13: Deodorizing means 33: Grease removing means 23: Dehumidifying means 3: Air purifying means 234: Cap 236, 7: Collection container 231: Heat absorption part 232: Heat radiation part 8: Forced air blowing means 5: Flow path of contaminated air 12: Blower 18: Air feed path

Claims (6)

A grease remover that removes fats and oils in polluted air in a range hood that circulates indoors after forcibly sucking in polluted air generated by cooking with a cooking utensil that does not generate combustion gas and cleaning the air. A deodorizing means for removing odor contained in the contaminated air and a dehumidifying means for removing moisture are provided on the downstream side, and the grease removing means, the deodorizing means, and the dehumidifying means constitute air cleaning means, and the dehumidifying means A Peltier module is used as the Peltier module, and the heat absorption part obtained by energization is arranged so that the contaminated air is in contact with it, and the heat absorption part is included in a moisture condensation generation part. A means for collecting the generated dew condensation is provided in communication, and the heat from the heat radiating section obtained when the Peltier module is energized is transferred to the surface of the range hood body and the flow of contaminated air. Indoor circulation range hood, characterized in that the road surface comprises means for heat transfer. The indoor circulation type range hood according to claim 1, wherein energization of the Peltier module is interlocked with the operation of the blower . The indoor circulation type range hood according to claim 1 or 2, wherein the heat absorption part is converted into a heat radiation part for a predetermined time by reversing the energization direction to the Peltier module in conjunction with the operation stop of the blower . The means for transferring heat is forced air blowing means for sucking air heated by heat from the heat radiating section and blowing it as warm air to transfer heat to the road surface of the range hood main body or contaminated air flow path. The indoor circulation type range hood according to any one of claims 1 to 3 . 5. The indoor circulation type range hood according to claim 4 , wherein the forced air blowing means includes an air feed path for blowing the warm air into a flow path of contaminated air . Means for the recovery, any claim 1 to 5, characterized in that to the water receiving a removable collection container or the condensation to the water receiving the dew condensation water flowing down is generated a discharge passage for discharging to the outside indoor circulation hood of one of claims.

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