CN102026433A

CN102026433A - Heating device

Info

Publication number: CN102026433A
Application number: CN201010283873XA
Authority: CN
Inventors: 樱井直明
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 2009-09-22
Filing date: 2010-09-13
Publication date: 2011-04-20
Anticipated expiration: 2030-09-13
Also published as: KR20110033037A; JP5072929B2; KR101279720B1; JP2011069501A; CN102026433B

Abstract

The invention provides a heating device capable of restraining decomposition of nutrient elements in heated objects when using microwave to heat the objects to be heated. The heating device is characterized by comprising a heating chamber, a heating mechanism and a spraying mechanism, wherein the heating chamber is used for accommodating the heated objects, the heating mechanism supplies microwave to the object to be heated to heat the object, and the spraying mechanism sprays antioxidant to the object to be heated.

Description

Heater

Technical field

The present invention relates to utilize the heater of microwave heating heating object.

Background technology

As the device that utilizes heating objects such as microwave heating of food microwave oven is arranged.The energy that the microwave oven utilization has microwave heats food etc.Its principle is, by to the moisture irradiating microwaves in the food, the hydrone with polarity is vibrated increases its energy.(for example with reference to patent documentation 1)

But, by when the microwave excitation hydrone, might the hydrone decomposition and produce micro-hydroxyl radical free radical, hydroperoxyl radical.This radical reaction height, contained nutrient in the also possible decomposing food.Therefore, about these free radicals, wish to do one's utmost to suppress its generation.Perhaps, might be because microwave nutrient decomposition itself.

Patent documentation

Patent documentation 1: TOHKEMY 2000-348858 communique

Summary of the invention

Purpose of the present invention promptly is in order to solve the problems of the technologies described above.

According to a scheme of the present invention, a kind of heater is provided, it is characterized in that: have: heating chamber is used to accommodate heating object; Heating arrangements is supplied with microwave to above-mentioned heating object, heats above-mentioned heating object; And humidifier, above-mentioned heating object is carried out the spraying of antioxidant.

According to another aspect of the present invention, provide a kind of heater, it is characterized in that: have: heating chamber is used to accommodate heating object; Heating arrangements is supplied with microwave to above-mentioned heating object, heats above-mentioned heating object; And the mechanism of decompressor, keep the decompression state of above-mentioned heating chamber.

The effect of invention:

According to the present invention, decompose even utilize the microwave heating heating object also can suppress nutrient contained in the heating object.

Description of drawings

Fig. 1 is the schematic diagram of the major part of heater.

Fig. 2 is the figure that is used for illustrating the action of heater.

Fig. 3 is flow chart and the result of the test that is used for illustrating the action of heater.

Fig. 4 is the schematic diagram of the major part of heater.

Fig. 5 is the schematic diagram of the major part of heater.

Embodiment

Below, with reference to accompanying drawing embodiments of the present invention are described.

(embodiment 1)

Fig. 1 is the schematic diagram of the major part of heater, and above Fig. 1 (a) expression heater, the X-Y of Fig. 1 (b) presentation graphs 1 (a) is to looking section.

Heater (heating and regulating device) the 1st, so-called microwave oven has: heating chamber 10 is used to accommodate heating object; Heating arrangements is by irradiating microwaves heating heating object; And humidifier, heating object is carried out the spraying of antioxidant.

The front of heater 1 is provided with the door 11 that is used for opening and closing heating chamber 10.The next door of door 11 is provided with guidance panel 12.On this guidance panel 12 (not shown) such as the display part of configuration display message, console switchs.The bottom surface of heating chamber 10 is provided with the turntable 13 that can rotate.Can mounting on turntable 13 as the food of heating object, support or take in the container (tableware) of food etc.

The rear side of guidance panel 12 is provided with Machine Room 20.For Machine Room 20, dispose waveguide pipe 21 in heating chamber 10 sides.Dispose magnetron 22 in the outside of waveguide pipe 21.Antenna 23 extends from magnetron 22.Antenna 23 is inserted in the waveguide pipe 21.The leading section of waveguide pipe 21 is connected with the microwave supply port 14 that is arranged on heating chamber 10.

By this structure, the microwave of being made by magnetron 22 (for example frequency 2.45GHZ) radiates from antenna 23.The microwave that is radiated from antenna 23 in waveguide pipe 21 guided wave to microwave supply port 14.And microwave is fed in the heating chamber 10 from microwave supply port 14.Microwave supply port 14 can also be arranged on the top of heater 1 except illustrated position, also can be arranged on the bottom.

And, be provided with jar 30 in the Machine Room 20 of heater 1.Store the solution 31 of antioxidants (preventing alterant) such as each derivative of comprising vitamin A, vitamin C, vitamin E, these vitamins, beta carotene, polyphenol in jars 30.Polyphenol is isoflavones, anthocyanidin, catechol, tannic acid, rutin sophorin, chlorogenic acid, xylan, ellagic acid etc.

As the solvent of solution 31, for example in water miscible antioxidant, use water, in fat-soluble antioxidant, use for example vegetable oil or artificial oil.

An end of crossing over the heating chamber 10 and the pipe 32 of Machine Room 20 settings links to each other with the bottom of jar 30.The other end of pipe 32 links to each other with the sprayer 33 of setting in the heater 10.Sprayer 33 is observed from the top of heater 1 and is made for example circle.On sprayer 33, be provided with a plurality of hole 33h of portion mutually opposed to each other with turntable 13.From the 33h of this hole portion, the solution 31 that contains antioxidant for example become the thing shape and from sprayer 33 to turntable 13 side spray.Like this, heater 1 possesses sprayer unit, and this sprayer unit is sprayed the solution 31 that contains antioxidant in the fat-soluble or water miscible solvent from 33 pairs of heating objects of sprayer.

And the heating chamber 10 of heater 1 is provided with control part (controlling organization) 40.Control part 40 is controlled solution 31 to the time of heating object spraying, the spray amount of solution 31, the spray time of solution 31 etc.In addition, control part 40 is gone back the output of controlled microwave, the Spin Control of turntable 13 etc.

Such control is carried out automatically by being stored in program in the memory, control loop etc.Thus, can realize the heating of heating object and the spraying of solution 31 according to user's requirement.

About the method for operating of heater 1, describe with reference to Fig. 2 and Fig. 3.

Fig. 2 is the figure that is used to illustrate the action of heater.Fig. 3 is used to illustrate the flow process and the result of the test of the action of heater.

At first, shown in Fig. 2 (a), heating object 50 (step 10) are set at heating chamber 10.For example, heating objects 50 such as mounting soup, vegetables, fish on the turntable 13 of heater 1.Heating object 50 is received in the container 51.

Then, if enforcement is based on user's switching manipulation, then shown in Fig. 2 (b), to heating object 50 spray solutions 31.Thus, to the antioxidant (step 20) in the heating object 50 internal spraying solution 31.At this moment, for example by the pressure in control part 40 regulating tanks 30, come to supply with solution 31 to sprayer 33.So sprayer 33 becomes the so-called mist that blows, solution 31 is sprayed on the heating object 50.

Then, carry out the output of microwave, heating heating object 50 (step 30).In addition, heating object 50 for example has soup etc. when mobile, and the thermal convection of solution 31 during by heating heating object 50 evenly is impregnated in the heating object 50.

Yet,,, in heating object 50, might produce the hydroxyl radical free radical or the hydroperoxyl radical of trace by the output of microwave for the heater that does not have to carry the humidifier that solution 31 is sprayed.Known, these free radicals (particularly hydroxide free radical) are active and reactive high.Therefore, the part of these free radicals possibility oxidation heating objects 50, or the nutrient in the decomposition heating object 50.And nutrients such as vitamin C might decompose by trace by microwave.

To this, in the heater 1 of present embodiment, heating object 50 is carried out the spraying of the antioxidant such as each derivative, beta carotene, polyphenol of vitamin A, vitamin C, vitamin E, these vitamins, to heating object 50 irradiating microwaves.

Therefore, even produce hydroperoxyl radical or hydroxyl radical free radical, these free radicals lose activity because of the existence of antioxidant at once.Deactivated hydroxyl radical free radical and hydroperoxyl radical mainly are reduced into water.That is, if use heater 1, then because free radical, the nutrient that can suppress in the oxidized or heating object 50 of the part of heating object 50 decomposes.

And above-mentioned antioxidant also is a nutrient simultaneously.So even the nutrient in the heating object 50 (for example, vitamin C etc.) decomposes because of the irradiation of microwave, these nutrients also can be by adding in the heating object 50 heating object 50 spray solutions 31.

In addition, the spraying time started of solution 31 also can be set as and the microwave output beginning while before can being set as microwave output beginning as mentioned above.The spraying concluding time of solution 31 can be set as and the microwave end of output simultaneously, also can be set as the microwave end of output after.

Particularly, behind the microwave end of output, to heating object 50 spray solutions 31 time, the polyphenoils in the solution 31 (nutrient) can not decompose because of microwave output.Therefore, the user can be with the nutrient of any amount as augmenting picked-up.At this moment, the spray amount of solution 31 is suitably regulated, and the amount of the nutrient that absorb becomes only amount.

And, according to present embodiment, even to heating object 50 long-time irradiating microwaves, the existence of hydroperoxyl radical or hydroxyl free gene antioxidant and continue to lose activity.Therefore, even to heating object 50 long-time irradiating microwaves, these free radicals also are difficult to be accumulated in the heating object 50.

According to this heater 1, found out the phenomenon that can suppress hydroxyl radical free radical or hydroperoxyl radical generation by following test.For example, as the sample of heating object 50, the use salinity is 1% saline solution.Whether confirmed has hydroxyl radical free radical among the hydroperoxyl radical that generates and the hydroxyl radical free radical in this saline solution.As free radical scavenger for example use DMPO (5,5-Dimethyl-1-pyrrolineN-oxide).As the sample of estimating usefulness, for example the sample A of the saline solution of 200ml (milliliter) and the sample B of for example in the saline solution of 200ml, having added the vitamin C aqueous solution (ascorbic concentration 500ppm) of 2ml have been prepared.

This sample A, B are shone 2 minutes for example microwaves of 700w.And, utilize ESR (ElectronSpin Resonance) device, to whether there being hydroxyl radical free radical among sample A, the B confirm.In hydroxyl radical free radical detects, implemented to be labeled as the free radical analysis of benchmark with manganese.

As a result, in sample A, detected free radical compounds DMPO-OH.This is because hydroxyl radical free radical is caught by DMPO.That is,, then produce hydroxyl radical free radical if to sample A irradiating microwaves.

To this, in sample B, the detection sensitivity of DMPO-OH descends.These result of the tests are summed up with Fig. 3 (b).

That is be in the ascorbic sample B containing antioxidant as can be known,, even irradiating microwaves also can suppress hydroxyl radical free radical and produce.

By above result, as can be known,, can suppress to generate based on the hydroxyl radical free radical of microwave by to heating object 50 spray solutions 31.Thus, even in food, contain for example chlorine (chloride ion), also be difficult to generate time chlorous acid (HCIO) etc.In fact, for sample A, B, when using ion detector to try to detect ion,, in sample B, do not detect time chlorous acid with respect in sample A, detecting trace time chlorous acid.

(execution mode 2)

Then, the variation to heater describes.In the following description, the parts identical with heater 1 are given identical symbol, and suitably omit its detailed description.

Fig. 4 is the schematic diagram of the major part of heater.Above Fig. 4 (a) expression heater 2, the X-Y of Fig. 4 (b) presentation graphs 2 (a) is to looking section.

Heater (heating and regulating device) 2 has: heating chamber 10 is used to accommodate heating object; Heating arrangements heats heating object by microwave irradiation; And the mechanism of decompressor, keep the decompression state of the heating chamber of taking in heating object.In addition, heater 2 also possesses the humidifier that heating object is carried out the spraying of antioxidant.

For heater 2, except above-mentioned parts, also have exhaust gear 60, connect the pipe 61 of exhaust gear 60 and heating chamber 10.40 controls of exhaust gear 60 Be Controlled portions.Dispose seal member 11s such as O type circle around the inboard of door 11.Heating chamber 10 can be kept the environment lower than atmospheric pressure by exhaust gear 60.

Yet, to the water irradiating microwaves time, if having nitrogen (N in the water ₂), oxygen (O ₂) wait to hold and deposit gas, then holding to deposit to produce between gas and the hydrone interacting, hydrone is more prone to be energized.Therefore, it is many more to hold the amount deposit gas, and the amount of tending to the hydroxyl radical free radical that produces and hydroperoxyl radical more is many.And, hold and to deposit gas ambient pressure is low, from water, emit easily more to atmosphere.

For the method for operating of heater 2, describe with reference to the flow chart of the action of above-mentioned Fig. 4 and explanation heater shown in Figure 5.

At first on the turntable 13 of the heating chamber 10 of heater 2 heating object 50 is set.(step 10)

Then, as if the switching manipulation of having implemented based on the user, then heating chamber 10 becomes the pressure (step 20) that forces down than atmosphere by exhaust gear 60.

At this moment, heating chamber 10 is applied predetermined air pressure, for example 0.4-0.9 atmospheric pressure (1 atmospheric pressure: 1013hPa).Thus, the scheduled volume of the dissolved gas that contains in the moisture with heating object 50 takes out from moisture.

Then, carry out microwave output, heating object 50 is heated (step 30).At this, even by microwave heating heating object 50, dissolved gas also can be removed scheduled volume from the moisture of heating object 50.After dissolved gas is removed from moisture, be difficult between dissolved gas and the hydrone produce interaction, hydrone is difficult to be energized.Lack when as a result, the amount of hydroxyl radical free radical and hydroperoxyl radical generation is than heating heating object 50 under normal pressure.

That is, if utilize heater 2, the nutrient that can suppress in, the heating object 50 oxidized because of the part of free radical, heating object 50 is decomposed.

In addition, as the action of heater, can and use the solution 31 of explanation in the above-described embodiments.

Like this, according to present embodiment, utilizing adding of microwave to pine for, the nutrient that can suppress to contain in the heating object 50 decomposes.As antioxidant, preferably use the higher vitamin C of antioxidation, vitamin E.

And embodiments of the present invention are not limited to these concrete examples.That is, in these concrete examples, those skilled in the art have applied the design of suitable change, as long as possess feature of the present invention, are included in the scope of the present invention.Each key element that above-mentioned each concrete example possessed with and configuration, material, condition, shape, size etc. be not limited to illustrative content, can carry out suitable change.

And each key element that the respective embodiments described above possessed so long as can make up in the possible scope of technology, comprises feature of the present invention and also is included in the scope of the present invention as long as make up their invention.

In addition, for thought category of the present invention, if those skilled in the art, various variation and correction example can expect that these variation and correction example are also contained in the scope of the present invention certainly.

Claims

1. heater is characterized in that:

Have:

Heating chamber is used to accommodate heating object;

Heating arrangements is supplied with microwave to above-mentioned heating object, heats above-mentioned heating object; With

Humidifier carries out the spraying of antioxidant to above-mentioned heating object.

2. heater as claimed in claim 1 is characterized in that,

Above-mentioned humidifier carries out containing in the fat-soluble or water miscible solvent spraying of the solution of above-mentioned antioxidant to above-mentioned heating object.

3. heater as claimed in claim 1 or 2 is characterized in that,

Above-mentioned antioxidant comprise in each derivative, beta carotene, polyphenol of vitamin A, vitamin C, vitamin E, these vitamins at least any one.

4. heater is characterized in that:

Have:

Heating chamber is used to accommodate heating object;

The mechanism of decompressor is kept the decompression state of above-mentioned heating chamber.

5. heater as claimed in claim 4 is characterized in that,

Also possesses the humidifier that above-mentioned heating object is carried out the spraying of antioxidant.