CN1509122A - High-frequency heating apparatus - Google Patents

High-frequency heating apparatus Download PDF

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Publication number
CN1509122A
CN1509122A CNA2003101204154A CN200310120415A CN1509122A CN 1509122 A CN1509122 A CN 1509122A CN A2003101204154 A CNA2003101204154 A CN A2003101204154A CN 200310120415 A CN200310120415 A CN 200310120415A CN 1509122 A CN1509122 A CN 1509122A
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China
Prior art keywords
frequency electromagnetic
mounting table
electromagnetic waves
food
recess
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CNA2003101204154A
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Chinese (zh)
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CN100493269C (en
Inventor
泷崎健
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Publication of CN1509122A publication Critical patent/CN1509122A/en
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Publication of CN100493269C publication Critical patent/CN100493269C/en
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Abstract

To provide a high-frequency heating device provided with a steam function capable of providing wet taste specific to steam cooking by devising a low-cost and simple-structure steam generating device.A bottom part of a heating chamber 15 is formed, and a recessed part 23 to store liquid such as water is formed in a table 22 for food. A high-frequency agitating chamber 17 is formed under the table 22, and high frequency generated by a high frequency generating means 16 is fed from a feed port 18 formed roughly at a center of a bottom surface of the high-frequency agitating chamber 17. A rotation waveguide tube 20 to diffuse the high frequency is composed to be rotatable around the feed port 18. The recessed part 23 in the table 22 is composed of arc-shaped grooves roughly around the center of the table 22. The table 22 is composed of ceramic of a low dielectric constant.(C)2004,JPO&NCIPI.

Description

Thermatron
Technical field
The present invention relates to a kind of thermatron that can carry out the steam cooking.
Background technology
In existing this thermatron, have as shown in Figure 5 a kind of.In this device, by the food in the heating chamber 1 is not only carried out the dielectric heating but also utilizes the steam in the heating environment to heat, thereby can under the water vapor of arbitrary temp, heat (specifically can open flat 9-4849 number) referring to the Japanese patent gazette spy to the heating objects such as food in the heating chamber 1.
But, in said apparatus, the device that is used for producing steam need be set in addition outside heating chamber, but also the control device of this steam raising plant of control need be set, cost will uprise, and whole apparatus structure will become complicated simultaneously, also break down easily.In addition, because steam raising plant and control unit need be set outside heating chamber, the volume of whole thermatron will become greatly, and setting property and degree easy to use will worsen.
Another kind of conventional device as shown in Figure 6, wherein, being provided with food on the mounting table 7 in heating chamber 6 can the electromagnetic porous body 8 of absorbing high-frequency, contains water in this porous body 8.By porous body 8 being heated with food, can produce steam (specifically can open flat 7-158858 number) referring to the Japanese patent gazette spy with frequency electromagnetic waves.
But, because can the electromagnetic porous body 8 of absorbing high-frequency and food be placed on together on the mounting table 7 in the heating chamber 6, the space of placing food will diminish.In addition, in order to ensure the space of placing food, porous body 8 must be done to such an extent that volume is smaller, and the result has produced the shortcoming of steam generation quantity not sufficient.
In addition, also have a kind of existing apparatus as shown in Figure 7, wherein, be provided with mounting table 10 in heating chamber 9 inside, the outer rim of mounting table 10 is formed with groove 11 on 1 the whole girth in the inner part, is marked with water in the groove.The microwave that produces from the magnetron 12 that is in the top imports the heating chamber, affacts on water load and the food, carries out cooking (specifically can open flat 6-249445 number referring to the Japanese patent gazette spy) while produce steam.
But because microwave is from top irradiation, the food that most of energy of microwave is placed on the mounting table absorbs, and therefore, the heating that is in the water that injects near the groove 11 the mounting table outer rim is just seemed insufficient, exists steam to be difficult for the shortcoming of generation.Thus, drying can take place in food, and what can expect is, steam cooking is distinctive to have moistening delicious food and just be difficult to realize.
Summary of the invention
The present invention is intended to solve the aforementioned problems in the prior, its purpose is to propose a kind of cost steam raising plant low and simple in structure, and provides a kind of steam that can reach to cook the distinctive moistening and delicious thermatron that has steam function in view of the above.
In order to solve the aforementioned problems in the prior, thermatron of the present invention comprises: the heating chamber that supplies food to put into; Form the bottom of heating chamber and be used for placing the mounting table of food; With produce frequency electromagnetic waves, carry out the high-frequency electromagnetic wave generating device of high-frequency heating, the described platform of putting is the structure that is provided with the recess that stockpiles liquid such as water.
In addition, the bottom of mounting table is provided with the frequency electromagnetic waves teeter chamber, and the frequency electromagnetic waves that the high-frequency electromagnetic wave generating device produces is sent into from the locational feedback ripple of the approximate centre mouth of the bottom surface that is arranged on described frequency electromagnetic waves teeter chamber.
In addition, be used to prevent frequency electromagnetic waves spread, it is had directivity and the rotation wave conduit launched to high-density to be to be the structure that the center is rotated with feedback ripple mouth.
In addition, to be with the approximate centre position of mounting table be the circular-arc bathtub construction in the center of circle to the recess of mounting table.
In addition, mounting table is made by the low pottery of dielectric constant.
Invention described in the technical scheme 1 of the present invention comprises: the heating chamber that supplies food to put into; Form the bottom of heating chamber and be used for placing the mounting table of food; With produce frequency electromagnetic waves, carry out the high-frequency electromagnetic wave generating device of high-frequency heating, the preceding described platform of putting is the structure that is provided with the recess that stockpiles liquid such as water.After adopting such structure, the mounting table that belongs to the part of heating chamber is provided with recess, has directly stockpiled water in this recess, by the high-frequency electromagnetic wave generating device water is heated, thereby can produce a large amount of steam.Like this, in steam raising plant, need not to increase miscellaneous part, just can make the thermatron that has steam function with very low cost, simple structure.
Invention described in the technical scheme 2 is, in technical scheme 1 described thermatron, the bottom of mounting table is provided with the frequency electromagnetic waves teeter chamber, and the frequency electromagnetic waves that the high-frequency electromagnetic wave generating device produces is sent into from the locational feedback ripple of the approximate centre mouth of the bottom surface that is arranged on described frequency electromagnetic waves teeter chamber.After adopting such formation, will be shorter from feedback ripple mouth to the distance that is located at the recess on the mounting table than distance from feedback ripple mouth and food, like this, major part from the frequency electromagnetic waves that the high-frequency electromagnetic wave generating device is sent here is arranged on the water that stockpiles in the recess of mounting table and absorbs, thereby can carry out high efficiency heating to water, can produce a large amount of steam.
Invention described in the technical scheme 3 is, in the thermatron described in the technical scheme 1~2, be used to prevent frequency electromagnetic waves spread, it is had directivity and the rotation wave conduit launched to high-density to be to be the structure that the center is rotated with feedback ripple mouth, therefore, the high-frequency electromagnetic wave energy of sending here from feedback ripple mouth is directed to high-density by the rotation wave conduit near the recess that is located on the mounting table, thereby can heat the water that stockpiles in recess with very high efficient.In addition, because the rotation wave conduit in continuous rotation, can make frequency electromagnetic waves not have the every nook and cranny that is transmitted in the heating chamber with omitting, thereby realize uniform electric wave cooking performance.
Invention described in the technical scheme 4 is, in the thermatron described in the technical scheme 1~3, because it is the circular-arc bathtub construction in the center of circle that the recess of mounting table is with the approximate centre position of mounting table, therefore can keep very near distance between the electric wave emission port of the rotation wave conduit that constantly is rotated and the recess, and such distance can keep necessarily, therefore can heat the water that stockpiles in the recess on mounting table with very high efficient.
Invention described in the technical scheme 5 is that in the thermatron described in the technical scheme 1~4, mounting table is made by the low pottery of dielectric constant.Like this, the high-frequency electromagnetic wave energy of sending into from feedback ripple mouth just is difficult for being placed the platform absorption, thereby with very high efficient the water that stockpiles in the recess of mounting table is heated.
Description of drawings
Fig. 1 is the sectional view of the summary formation of the thermatron in the expression embodiment of the invention 1,
Fig. 2 is the outside drawing of the rotation wave conduit of embodiments of the invention 1,
Fig. 3 is the outside drawing of the mounting table in the embodiments of the invention 1,
Fig. 4 is the sectional view of the summary formation of the thermatron in the expression embodiment of the invention 2,
Fig. 5 is the principle sectional view of existing thermatron,
Fig. 6 is the schematic diagram of the summary formation of the another kind of existing thermatron of expression,
Fig. 7 is the side cross-sectional views of the summary formation of another existing thermatron of expression.
In the accompanying drawing, reference number 15 is a heating chamber; 16 is the high-frequency electromagnetic wave generating device; 17 is the frequency electromagnetic waves teeter chamber; 18 are feedback ripple mouth; 20 is the rotation wave conduit; 22 is mounting table; 23 is recess.
Embodiment
Following embodiment with reference to the accompanying drawings to describe the present invention.
(embodiment 1)
Fig. 1 is the sectional view of the summary formation of the thermatron in the expression embodiments of the invention.
Among Fig. 1, the inside of the outer container 13 that is made of metal is provided with: the heating chamber 15 that food 14 is heated/cooks by frequency electromagnetic waves; With frequency electromagnetic waves teeter chamber 17 below that is located at heating chamber 15, that the frequency electromagnetic waves that emits from frequency electromagnetic waves generating meanss 16 such as magnetrons is stirred.The bottom center position of frequency electromagnetic waves teeter chamber 17 is provided with the feedback ripple mouth 18 in the frequency electromagnetic waves importing frequency electromagnetic waves teeter chamber 17 that high-frequency electromagnetic wave generating device 16 is emitted, and is provided with the electromagnetic waveguide 19 of direct high-frequency from high-frequency electromagnetic wave generating device 16 to feedback ripple mouth 18.Being provided with feedback ripple mouth 18 in the electric wave teeter chamber 17 is the rotation wave conduit 20 that the center is rotated.The schematic appearance of rotation wave conduit 20 has been shown among Fig. 2.In Fig. 2,20a is the top board of the upper wall of formation rotation wave conduit 20, and 20b is the side plate of the sidewall of formation rotation wave conduit 20, and 20c is the back plate that forms the rear wall of rotation wave conduit 20,20d is the flange that prevents frequency electromagnetic waves generation transverse leakage, and 20e is for constituting the rotating shaft in the axle center that rotates.Side plate 20b, back plate 20c, flange 20d have the function of blocking frequency electromagnetic waves, are used for the frequency electromagnetic waves that feedback ripple mouth 18 is sent here is directed in the rotation wave conduit 20, and the direction shown in the arrow A in Fig. 2 has directivity ground, launches to high-density again.Rotation wave conduit 20 such and motor 21 as shown in fig. 1 links, thereby constantly rotates, and frequency electromagnetic waves is had the every nook and cranny that is not transmitted in the heating chamber 15 with omitting.
22 mounting tables for the bottom that constitutes heating chamber 15 and the food 14 that is used for placing.Mounting table 22 is made by the low pottery of dielectric constant, can see through frequency electromagnetic waves.In addition, because dielectric constant is low, mounting table 22 is difficult for the absorbing high-frequency electromagnetic wave energy, but allows the high-frequency electromagnetic wave energy be absorbed by food 14 with very high efficient.Mounting table 22 is provided with recess 23, wherein has water 24.Recess 23 is covered by lid 25, also can place food 14 on the lid 25.In addition, lid 25 also plays and prevent the effect that it splashes when the water generation boiling that stockpiles in recess.Recess 23 as shown in Figure 3 be set as circular shape like that, its semidiameter is few identical with the radius of turn of rotation wave conduit 20, perhaps is set at slightly greatly.
The following describes the operational circumstances in the device of the present invention with above-mentioned formation.The frequency electromagnetic waves of launching from thermatron (magnetron) 16 is directed to feedback ripple mouth 18 by waveguide 19, enters rotation wave conduit 20 from feedback ripple mouth 18.Rotation wave conduit 20 can prevent the diffusion of frequency electromagnetic waves, and directivity is arranged and to high-density it is launched.Because rotation wave conduit 20 constantly is being rotated, therefore any direction in the heating chamber 15 is all carried out impartial emission, distribute thereby can access uniform frequency electromagnetic waves.The water 24 that the frequency electromagnetic waves that emits from rotation wave conduit 20 is at first stockpiled the recess 23 of mounting table 22 absorbs, and with water 24 heating, makes it boiling, and produces steam (as shown in fig. 1).When just having begun, the water yield that stockpiles is many in the cooking, so the major part in the frequency electromagnetic waves absorbed by water 24, and on the contrary, it is less to be used for the ratio of high-frequency electromagnetic wave energy of heated food 14; Along with constantly carrying out of evaporation, water 24 constantly reduces.With the minimizing of rate of water added, the high-frequency electromagnetic wave energy that is absorbed by food 14 constantly increases.Therefore, in the present invention,, carry out the ratio that steam-heated ratio heats greater than frequency electromagnetic waves by steam in the incipient initial stage of the cooking; Along with the minimizing of water 24, it is more and more that the ratio that frequency electromagnetic waves heats will become.
By carrying out such gastronomical process, can obtain following advantage.In the initial stage of the cooking, because a large amount of steam generations is arranged, steam will be full of heating chamber 15, so the ambient humidity in the heating chamber 15 is very high.Under such state, carry out frequency electromagnetic waves when cooking, the water yield that evaporates from food 14 and will enter between the steam the food 14 and can reach poised state, the moisture of the inside of food 14 will can not change.Under such state, food 14 is heated, can prevent that the moisture in the food 14 from reducing because of evaporation takes place, make food 14 can not become dry, harden, be wizened state, but can make do ripe food 14 moistening, delicious, have moisture.
Adopting the formation of present embodiment, is that recess 23 is set on the mounting table 22 by the part at heating chamber 15, directly stockpiles water 24, by the high-frequency electromagnetic wave generating device water 24 is heated again, can produce a large amount of steam.The method that tank and heater produce steam is set in addition compares with heating chamber 15 is outer, the present invention can provide the thermatron that cost is low, structure extremely simply has steam function.In addition, the present invention can also eliminate when heating chamber 15 is outer to be provided with steam raising plant whole device become maximizations, relatively occupy the problem that the place is set, can make structure realization miniaturization, more apparent compactness.And owing to do not need to be used to produce the heater of steam, therefore, the power that heater consumed also can save, thereby can also save the energy.
In addition, be provided with frequency electromagnetic waves teeter chamber 17 in the bottom of mounting table 22, the frequency electromagnetic waves that high-frequency electromagnetic wave generating device 16 produces is sent into from the locational feedback ripple mouth 18 of the bottom substantial middle that is located at frequency electromagnetic waves teeter chamber 17.Owing to adopted such structure, feedback ripple mouth 18 is shorter to the distance of food 14 than feedback ripple mouth 18 to the distance that is located at the recess 23 on the mounting table 22, the water 24 that the result makes the major part from the frequency electromagnetic waves that high-frequency electromagnetic wave generating device 16 is sent here be stockpiled in the recess 23 on mounting table 22 absorbs, water 24 can be heated effectively, thereby can produce a large amount of steam.
In addition, because what play the diffusion that prevents frequency electromagnetic waves, directivity is arranged and launch to high-density that the rotation wave conduit 20 of frequency electromagnetic waves adopts is to be the structure that the center is rotated with feedback ripple mouth 18, therefore, the high-frequency electromagnetic wave energy of sending into from feedback ripple mouth 18 is guided to high-density by rotation wave conduit 20 near the recess 23 that is located on the mounting table 22, thereby can heat the water 24 that stockpiles in recess 23 with very high efficient.In addition, because rotation wave conduit 20 in continuous rotation, can make frequency electromagnetic waves not have the every nook and cranny that shines in the heating chamber 15 with omitting, thereby obtain uniform electromagnetic wave cooking performance.
In addition, because being located at that recess 23 on the mounting table 22 is configured to the approximate centre position of mounting table 22 is the circular-arc groove in the center of circle, the electric wave emission port of the rotation wave conduit 20 that therefore constantly is rotated and stockpile between the water 24 in recess 23 and can keep very near distance, and it is constant that such distance can keep again, thereby can heat the water 24 that stockpiles in the recess 23 on mounting table 22 with very high efficient.
In addition, make mounting table 22, make the high-frequency electromagnetic wave energy that provides from feedback ripple mouth 18 be difficult for being placed platform 22 absorptions by adopting the low pottery of dielectric constant.Like this, just can carry out high efficiency heating to the water 24 that stockpiles in the recess 23 on mounting table 22.
(embodiment 2)
The summary that sectional view among Fig. 4 shows the thermatron among the present invention the 2nd embodiment constitutes.In Fig. 4, the cover that reference number 26 is made for heat resistant glass is used to cover food 14.By covering food 14 with cover 26, the steam that produces from the recess 23 of mounting table 22 can be closed, and forms higher density, thereby to the more moisture of food 14 supplies, makes it moistening.Above-mentioned device is very suitable for heating steamed dumplings, meat steamed bun etc. need be than the food of juicy.
Adopt after the invention described in the aforesaid technical scheme 1~5, can reach following effect.
By being that recess is set on the mounting table in a part that belongs to heating chamber, can directly stockpile water, by such water being heated, can produce a large amount of steam again by the high-frequency electromagnetic wave generating device.With heating chamber tank is set outward and compares, can provide the thermatron that has steam function with very low cost, extremely simple structure with the structure that heater produces steam.In addition, when the present invention can also eliminate heating chamber and steam raising plant is set outward whole device become maximization, relatively occupy the problem that the place is set, can make structure realize miniaturization, more apparent compactness.And owing to do not need to be used to produce the heater of steam, therefore, the power that heater consumed also can save, thereby can also save the energy.
In addition, be provided with the frequency electromagnetic waves teeter chamber in the bottom of mounting table, the frequency electromagnetic waves that the high-frequency electromagnetic wave generating device produces is sent into from the almost central locational feedback ripple mouth in bottom surface that is located at the frequency electromagnetic waves teeter chamber.Owing to adopted such formation, feedback ripple mouth is shorter to the distance of food than feedback ripple mouth to the distance that is located at the recess on the mounting table, the water that the result makes the major part from the frequency electromagnetic waves that the high-frequency electromagnetic wave generating device is sent here be stockpiled in the recess on mounting table absorbs, water can be heated effectively, thereby can produce a large amount of steam.
In addition, because what play the diffusion that prevents frequency electromagnetic waves, directivity is arranged and launch to high-density that the rotation wave conduit of frequency electromagnetic waves adopts is to be the structure that the center is rotated with feedback ripple mouth, therefore, the frequency electromagnetic waves that provides from feedback ripple mouth revolves and can be guided to high-density near the recess that is located on the mounting table by the rotation wave conduit, thereby can heat the water that stockpiles in recess with very high efficient.In addition, because the rotation wave conduit in continuous rotation, can make frequency electromagnetic waves not have the every nook and cranny that shines in the heating chamber with omitting, thereby obtain uniform electromagnetic wave cooking performance.
In addition, because being located at that recess on the mounting table is configured to the approximate centre position of mounting table is the circular-arc groove in the center of circle, the electric wave emission port of the rotation wave conduit that therefore constantly is rotated and stockpile between the water in recess and can keep very near distance, and such distance can keep again necessarily, thereby can heat the water that stockpiles in the recess 23 on mounting table with very high efficient.
In addition, make mounting table, make the high-frequency electromagnetic wave energy that provides from feedback ripple mouth be difficult for being placed the platform absorption by adopting the low pottery of dielectric constant.Like this, just can carry out high efficiency heating to the water that stockpiles in the recess on mounting table.

Claims (5)

1. thermatron is characterized in that comprising:
The heating chamber that supplies food to put into;
Form the bottom of heating chamber and be used for placing the mounting table of food; With
Produce frequency electromagnetic waves, carry out the high-frequency electromagnetic wave generating device of high-frequency heating,
The preceding described platform of putting is the structure that is provided with the recess that stockpiles liquid such as water.
2. the thermatron described in claim 1, it is characterized in that: the bottom of mounting table is provided with the frequency electromagnetic waves teeter chamber, and the frequency electromagnetic waves that the high-frequency electromagnetic wave generating device produces is sent into from the locational feedback ripple of the approximate centre mouth of the bottom surface that is arranged on described frequency electromagnetic waves teeter chamber.
3. the thermatron described in claim 1~2 is characterized in that: it can be the structure that the center is rotated with feedback ripple mouth that the rotation wave conduit that directivity is arranged and launch frequency electromagnetic waves to high-density becomes.
4. the thermatron described in claim 1~3, it is characterized in that: it is the circular-arc bathtub construction in the center of circle that the recess of mounting table is with the approximate centre position of mounting table.
5. the thermatron described in claim 1~4, it is characterized in that: mounting table is made by the low pottery of dielectric constant.
CNB2003101204154A 2002-12-16 2003-12-11 High-frequency heating apparatus Expired - Fee Related CN100493269C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002363463 2002-12-16
JP2002363463A JP3750652B2 (en) 2002-12-16 2002-12-16 High frequency heating device

Publications (2)

Publication Number Publication Date
CN1509122A true CN1509122A (en) 2004-06-30
CN100493269C CN100493269C (en) 2009-05-27

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CNB2003101204154A Expired - Fee Related CN100493269C (en) 2002-12-16 2003-12-11 High-frequency heating apparatus

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JP (1) JP3750652B2 (en)
CN (1) CN100493269C (en)
HK (1) HK1066141A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007079654A1 (en) * 2005-12-27 2007-07-19 Tsann Kuen(China) Enterprises Co., Ltd. A steam generator for a microwave oven
CN100478618C (en) * 2004-07-02 2009-04-15 松下电器产业株式会社 High frequency cookware

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100478618C (en) * 2004-07-02 2009-04-15 松下电器产业株式会社 High frequency cookware
WO2007079654A1 (en) * 2005-12-27 2007-07-19 Tsann Kuen(China) Enterprises Co., Ltd. A steam generator for a microwave oven

Also Published As

Publication number Publication date
HK1066141A1 (en) 2005-03-11
JP2004197962A (en) 2004-07-15
JP3750652B2 (en) 2006-03-01
CN100493269C (en) 2009-05-27

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