JP2979780B2 - Thawing device - Google Patents
Thawing deviceInfo
- Publication number
- JP2979780B2 JP2979780B2 JP3263514A JP26351491A JP2979780B2 JP 2979780 B2 JP2979780 B2 JP 2979780B2 JP 3263514 A JP3263514 A JP 3263514A JP 26351491 A JP26351491 A JP 26351491A JP 2979780 B2 JP2979780 B2 JP 2979780B2
- Authority
- JP
- Japan
- Prior art keywords
- electric field
- thawing
- thawed
- power supply
- microwave generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は調理室内に収納された被
解凍物をマイクロ波発生装置で解凍する解凍装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thawing apparatus for thawing an object to be thawed in a cooking chamber with a microwave generator.
【０００２】[0002]
【従来の技術】従来、この種の解凍装置は、調理室内に
収納された被解凍物をマイクロ波発生装置で加熱し、解
凍していた。2. Description of the Related Art Conventionally, in this type of thawing apparatus, an object to be thawed in a cooking chamber is heated by a microwave generator and thawed.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら上記のよ
うな構成では、マイクロ波の調理室内での分布にばらつ
きがあり、さらに解凍物自体の熱伝導特性から解凍物の
表面、および隅部は過解凍、逆に中央内部は未解凍にな
ることがあった。さしみにするために、まぐろを解凍す
る場合で説明すれば、過解凍の部分は煮えになってお
り、さしみに利用できない。逆に、未解凍の部分は固す
ぎて包丁が入らないという問題があった。However, in the above configuration, the distribution of microwaves in the cooking chamber varies, and the surface and corners of the defrosted product are over-thawed due to the heat conduction characteristics of the defrosted product itself. On the contrary, the inside of the center sometimes became unthawed. In the case of thawing tuna for sashimi, the over-thawed portion is boiled and cannot be used for sashimi. Conversely, there is a problem that the un-thawed portion is too hard to insert the kitchen knife.
【０００４】そこで、本発明は解凍むらのない解凍装置
の提供を第１の目的としている。また第２の目的はマイ
クロ波による解凍も加え、電場による解凍と選択、併用
運転できる解凍装置を得ることにある。Accordingly, a first object of the present invention is to provide a thawing apparatus free from uneven thawing. A second object of the present invention is to provide a thawing apparatus capable of operating together with thawing by an electric field in addition to thawing by a microwave.
【０００５】そこで、前記第１の目的を達成するため
に、調理室と、前記調理室内に被解凍物を介して対向し
て設けた一対の電極と、前記一対の電極間に電場を印加
しコロナイオン風を発生させる電場電源装置とを備え、
前記被解凍物の解凍時、前記コロナイオン風により解凍
する構成とした。 Therefore, in order to achieve the first object, a cooking room is opposed to the cooking room via a material to be thawed.
And an electric field applied between the pair of electrodes
And an electric field power supply for generating corona ion wind,
When thawing the object to be thawed, thaw by the corona ion wind
Configuration.
【０００６】また第２の目的を達成するために、本発明
はマイクロ波発生装置と、このマイクロ波発生装置と電
場電源装置の運転を、電場電源装置の単独運転、マイク
ロ波発生装置と電場電源装置の併用運転、マイクロ波発
生装置の単独運転のいずれかに選択切り替えする運転制
御装置を設けたものである。In order to achieve the second object, the present invention relates to a microwave generator, an operation of the microwave generator and the electric field power supply, an independent operation of the electric field power supply, a microwave generator and an electric field power supply. An operation control device is provided for selectively switching between the combined operation of the devices and the independent operation of the microwave generator.
【０００７】[0007]
【作用】本発明の解凍装置は、電場電源装置により第１
の電極と第２の電極の間に電場を印加するため、電場の
作用でコロナイオン風が発生し、この間に置かれた解凍
物はコロナイオン風により解凍される。The thawing apparatus according to the present invention is firstly operated by an electric field power supply.
Since an electric field is applied between the first electrode and the second electrode, a corona ion wind is generated by the action of the electric field, and the defrosted material placed therebetween is defrosted by the corona ion wind.
【０００８】またマイクロ波発生装置を設け、運転制御
装置で選択切り替えすることで、コロナイオン風による
解凍作用、マイクロ波とコロナイオン風の両解凍作用、
マイクロ波のみの解凍作用と使いわけることができる。Further, by providing a microwave generator and selectively switching the operation control device, a thawing action by corona ion wind, a thawing action of both microwave and corona ion wind,
It can be used interchangeably with the thawing action of microwaves only.
【０００９】[0009]
【実施例】以下、本発明の一実施例を図１にもとずいて
説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
【００１０】図１において、１は調理室、２は第１の電
極で調理室１の上面に設けられ、３は第２の電極で調理
室１の下面に設けられている。４は絶縁物で調理室１と
第１の電極２及び第２の電極３とを絶縁している。５は
電場電源装置で第１の電極２及び第２の電極３との間に
電場を印加し、コロナイオン風を発生する。 In FIG. 1, reference numeral 1 denotes a cooking chamber, 2 denotes a first electrode provided on an upper surface of the cooking chamber 1, and 3 denotes a second electrode provided on a lower surface of the cooking chamber 1. Reference numeral 4 denotes an insulator that insulates the cooking chamber 1 from the first electrode 2 and the second electrode 3. An electric field power supply 5 applies an electric field between the first electrode 2 and the second electrode 3 to generate a corona ion wind.
【００１１】上記構成において、電場電源装置５を運転
をさせると第１の電極２と第２の電極３の間に電場を印
加するため、電場の作用でコロナイオン風が発生し、こ
の間に置かれた被解凍物はコロナイオン風による調理室
内空気との強制対流熱交換で解凍される。図２は電場を
印加したミンチ肉と印加していないミンチ肉との隅部の
解凍温度の比較結果である。測定したミンチ肉は重量約
３００ｇ、形状は縦約１００mm＊横約１００mm＊厚さ約
３０mmである。６は電場を印加していないミンチ肉の隅
表面の温度、７は隅内部の温度である。電場を印加した
ミンチ肉は、第１の電極２をミンチ肉の上端から２０mm
の距離にし、下端を第２の電極３に接触して置き、交流
１５ＫＶで電場を印加した。８は電場を印加したミンチ
肉の隅表面の温度、９は隅内部の温度である。電場を印
加してないミンチ肉の温度６、７は最大氷結晶融解帯と
いわれる−５〜０℃の温度域を通過するのに時間を要
し、０℃までの時間は１３０分、１５５分であった。一
方、電場を印加したミンチ肉の温度８、９は最大氷結晶
融解帯を短時間で通過し、０℃までの時間は３７分、４
３分であり、約１／３.5に短縮されている。このように
電場により発生したコロナイオン風で調理室内空気との
強制対流熱交換がおこなわれ、解凍ができる。図３は図
２と同じミンチ肉の中央部の解凍温度の比較結果であ
る。１０は電場を印加していないミンチ肉の中央表面の
温度、１１は中央内部の温度である。１２は電場を印加
したミンチ肉の中央表面の温度、１３は中央内部の温度
である。図３も図２と同様の結果を示しており、中央部
と隅部で差がなく解凍ができている。そこで、中央部が
最大氷結晶融解帯を通過した時点では、隅部が過解凍に
なり煮えが発生するという従来の問題はみられない。In the above configuration, when the electric field power supply 5 is operated, an electric field is applied between the first electrode 2 and the second electrode 3, so that a corona ion wind is generated by the action of the electric field, and is placed between the electrodes. The thawed material is thawed by forced convection heat exchange with the cooking room air by corona ion wind. FIG. 2 is a comparison result of the thawing temperatures at the corners of minced meat to which an electric field is applied and minced meat to which no electric field is applied. The measured minced meat has a weight of about 300 g and a shape of about 100 mm long * about 100 mm wide * about 30 mm thick. 6 is the temperature of the corner surface of the minced meat to which no electric field is applied, and 7 is the temperature inside the corner. The minced meat to which the electric field was applied, the first electrode 2 was placed 20 mm from the upper end of the minced meat.
, The lower end was placed in contact with the second electrode 3, and an electric field was applied at an alternating current of 15 KV. 8 is the temperature of the corner surface of the minced meat to which the electric field is applied, and 9 is the temperature inside the corner. Minced meat temperatures 6 and 7 to which no electric field is applied take time to pass through the temperature range of -5 to 0 ° C, which is called the maximum ice crystal melting zone, and the time to 0 ° C is 130 minutes and 155 minutes. Met. On the other hand, the minced meat temperatures 8, 9 to which the electric field was applied passed through the maximum ice crystal melting zone in a short time, and the time until 0 ° C. was 37 minutes, 4 minutes.
3 minutes, reduced to about 1 / 3.5. Thus, forced convection heat exchange with the cooking room air is performed by the corona ion wind generated by the electric field, and the thawing can be performed. FIG. 3 is a comparison result of the thawing temperature of the central part of the minced meat as in FIG. 10 is the temperature of the center surface of the minced meat to which no electric field is applied, and 11 is the temperature inside the center. 12 is the temperature of the central surface of the minced meat to which the electric field is applied, and 13 is the temperature inside the central portion. FIG. 3 also shows the same result as FIG. 2, and there is no difference between the center and the corner, and the thawing is completed. Therefore, at the time when the central part has passed the maximum ice crystal melting zone, the conventional problem that the corner part is over-thawed and boiling occurs does not occur.
【００１２】次に図４によりマイクロ波による解凍と電
場による解凍との選択、併用運転について説明する。１
４はマイクロ波発生装置で調理室１内に収納された被解
凍物を加熱解凍する。１５は運転制御装置であり、電場
電源装置５の単独運転、マイクロ波発生装置１４と電場
電源装置５の併用運転、マイクロ波発生装置１４の単独
運転のいずれかに選択切り替えする。解凍時間を短縮し
たい場合は、運転制御装置１５により、マイクロ波発生
装置１４と電場電源装置５の併用運転を選択すると、マ
イクロ波と電場の両方により解凍が行なわれるため、電
場のみの場合に比べ、解凍時間が短縮できる。また、マ
イクロ波の強度を従来よりも低下させておけば、中央部
が最大氷結晶融解帯を通過した時点で、隅部が過解凍に
なり煮えが発生するという問題もなくなる。さらに、煮
え発生の心配が不要な氷などで、より解凍時間を短縮し
たい場合は、従来と同様に、運転制御装置１５によりマ
イクロ波発生装置１４の単独運転を選択すればよい。こ
のようにして、許容解凍時間とか解凍物の種類に応じて
選択切り替え運転ができる。Next, selection of microwave thawing and thawing by an electric field and combined operation will be described with reference to FIG. 1
Reference numeral 4 denotes a microwave generator for heating and thawing the object to be thawed stored in the cooking chamber 1. Reference numeral 15 denotes an operation control device, which selectively switches to one of an independent operation of the electric field power supply device 5, a combined operation of the microwave generator 14 and the electric field power supply device 5, and an independent operation of the microwave generator 14. When shortening the thawing time is desired, when the operation control device 15 selects the combined operation of the microwave generator 14 and the electric field power supply device 5, the thawing is performed by both the microwave and the electric field. The thawing time can be shortened. Further, if the intensity of the microwave is reduced as compared with the conventional case, there is no problem that the corner portion is over-thawed and boiling occurs when the central portion passes through the maximum ice crystal melting zone. Furthermore, when it is desired to further shorten the thawing time with ice or the like that does not need to worry about boiling, the operation control device 15 may select the single operation of the microwave generation device 14 as in the related art. In this way, the selection switching operation can be performed according to the allowable thawing time or the type of the thawing material.
【００１３】[0013]
【発明の効果】以上のように本発明は、調理室内のある
面に第１の電極を設け、この第１の電極を設けた面とは
間に被解凍物を置く場所をはさんで対向する面に第２の
電極を設け、第１の電極及び第２の電極に電場を印加
し、コロナイオン風を発生する電場電源装置を設けた構
成としたことで、電場により発生したコロナイオン風で
調理室内空気との強制対流熱交換が解凍物表面全域で行
なわれ、中央部と隅部で差がなく解凍ができる。そこ
で、従来のマイクロ波により解凍する場合のように解凍
物の表面、および隅部は過解凍で煮えが発生し、逆に中
央内部は未解凍で包丁が入りにくいといった問題は解消
できる。As described above, according to the present invention, the first electrode is provided on a certain surface in the cooking chamber, and the place where the object to be thawed is placed is opposed to the surface on which the first electrode is provided. Provide a second electrode on the surface to be applied, and apply an electric field to the first electrode and the second electrode
In addition, by providing an electric field power supply that generates corona ion wind, forced convection heat exchange with the cooking room air is performed by the corona ion wind generated by the electric field over the entire surface of the defrosted product, and the central part and the corner There is no difference between the parts and it can be thawed. Therefore, the problem that the surface and the corner of the defrosted product are boiled by over-thawing as in the case of defrosting by the conventional microwave, and the inside of the center is not thawed and the kitchen knife is hard to enter can be solved.
【００１４】また、マイクロ波発生装置と、このマイク
ロ波発生装置と電場電源装置の運転を、電場電源装置の
単独運転、マイクロ波発生装置と電場電源装置の併用運
転、マイクロ波発生装置の単独運転のいずれかに選択切
り替えする運転制御装置を設けたことにより、解凍時間
を短縮したい場合は、マイクロ波発生装置と電場電源装
置の併用運転で電場のみの場合に比べ、解凍時間が短縮
でき、マイクロ波強度を低下させれば、隅部が過解凍に
なり煮えが発生するという問題もない。さらに煮え発生
の心配が不要な氷などでは、従来と同様にマイクロ波発
生装置の単独運転でより解凍時間の短縮のできるなど、
許容時間と解凍物の種類に応じて選択、併用運転ができ
る。[0014] The operation of the microwave generator, the microwave generator and the electric field power supply is referred to as the independent operation of the electric field power supply, the combined operation of the microwave generator and the electric field power supply, and the independent operation of the microwave generator. If you want to reduce the thawing time by providing an operation control device that selectively switches to either of the above, the thawing time can be reduced compared to the case of using only the electric field by operating the microwave generator and electric field power supply together, If the wave intensity is reduced, there is no problem that corners are over-thawed and boiling occurs. In addition, for ice that does not need to be boiled, it is possible to shorten the thawing time by operating the microwave generator alone as in the past.
Selection and combined operation can be performed according to the permissible time and the type of defrost.
【図１】本発明の一実施例の解凍装置の断面図FIG. 1 is a sectional view of a defrosting apparatus according to an embodiment of the present invention.
【図２】本発明の一実施例の解凍装置による解凍特性を
示す図FIG. 2 is a diagram showing thawing characteristics of the thawing apparatus according to one embodiment of the present invention.
【図３】本発明の一実施例の解凍装置による解凍特性を
示す図FIG. 3 is a diagram showing thawing characteristics by the thawing apparatus of one embodiment of the present invention.
【図４】本発明の他の実施例の解凍装置の断面図FIG. 4 is a sectional view of a defrosting apparatus according to another embodiment of the present invention.
１ 調理室 ２ 第１の電極 ３ 第２の電極 ５ 電場電源装置 １４ マイクロ波発生装置 １５ 運転制御装置 DESCRIPTION OF SYMBOLS 1 Cooking room 2 1st electrode 3 2nd electrode 5 Electric field power supply 14 Microwave generator 15 Operation control device
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) F24C 7/02 340 H05B 6/62 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) F24C 7/02 340 H05B 6/62
Claims (2)
て対向して設けた一対の電極と、前記一対の電極間に電
場を印加しコロナイオン風を発生させる電場電源装置と
を備え、前記被解凍物の解凍時、前記コロナイオン風に
より解凍する構成とした解凍装置。1. A cooking room and a material to be thawed in the cooking room.
And a pair of electrodes provided to face each other, and an electrode between the pair of electrodes.
An electric field power supply that applies a field and generates corona ion wind
When the object to be thawed is thawed, the corona ion wind is applied.
A decompression device configured to defrost more .
熱するマイクロ波発生装置と、このマイクロ波発生装置
と前記電場電源装置の運転を、前記電場電源装置の単独
運転、前記マイクロ波発生装置と前記電場電源装置の併
用運転、前記マイクロ波発生装置の単独運転のいずれか
に選択切り替えする運転制御装置を設けた請求項１記載
の解凍装置。2. A microwave generator for heating an object to be thawed housed in the cooking chamber, and operating the microwave generator and the electric field power supply by independently operating the electric field power supply and generating the microwave. 2. The thawing device according to claim 1, further comprising an operation control device for selectively switching between a combined operation of a device and the electric field power supply device and an independent operation of the microwave generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3263514A JP2979780B2 (en) | 1991-10-11 | 1991-10-11 | Thawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3263514A JP2979780B2 (en) | 1991-10-11 | 1991-10-11 | Thawing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0599437A JPH0599437A (en) | 1993-04-20 |
| JP2979780B2 true JP2979780B2 (en) | 1999-11-15 |
Family
ID=17390594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3263514A Expired - Fee Related JP2979780B2 (en) | 1991-10-11 | 1991-10-11 | Thawing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2979780B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11229094B2 (en) | 2018-12-20 | 2022-01-18 | Nxp Usa, Inc. | Combined RF and thermal heating system and methods of operation thereof |
| US11324084B2 (en) | 2019-05-16 | 2022-05-03 | Nxp Usa, Inc. | Combined RF and thermal heating system with heating time estimation |
-
1991
- 1991-10-11 JP JP3263514A patent/JP2979780B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0599437A (en) | 1993-04-20 |
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