CN101008500B - High-frequency heating device - Google Patents
High-frequency heating device Download PDFInfo
- Publication number
- CN101008500B CN101008500B CN2007100040757A CN200710004075A CN101008500B CN 101008500 B CN101008500 B CN 101008500B CN 2007100040757 A CN2007100040757 A CN 2007100040757A CN 200710004075 A CN200710004075 A CN 200710004075A CN 101008500 B CN101008500 B CN 101008500B
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- China
- Prior art keywords
- temperature
- cooking plate
- heating
- article
- frequency heating
- 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 105
- 238000010411 cooking Methods 0.000 claims abstract description 77
- 238000001514 detection method Methods 0.000 claims description 7
- 230000014509 gene expression Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 2
- 235000021168 barbecue Nutrition 0.000 description 2
- 206010015150 Erythema Diseases 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 231100000321 erythema Toxicity 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/6435—Aspects relating to the user interface of the microwave heating apparatus
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/6447—Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors
- H05B6/645—Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors using temperature sensors
- H05B6/6455—Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors using temperature sensors the sensors being infrared detectors
Abstract
The present invention provides a high-frequency heating device characterized by detecting temperatures at a plurality of temperature detecting points by temperature detecting means so that the presence/absence of a cooking dish may be decided from the plural temperatures detected. The high-frequency heating device comprises: a heating chamber 1 for housing an object 6 to be heated; a cooking dish 3 having an electric wave heating member applied thereto for placing the object 6, a dish receiving shelf 2 for placing the cooking dish 3; temperature detecting means 8 for detecting the temperature of an object; heating means 7 for heating the object 6 and the cooking dish 3; and heating control means 12 for controlling a heating pattern and a heating time period. Temperature detecting means 11 detects the temperatures at a plurality of temperature detecting points, and decides the presence/absence of the cooking dish 3 from the temperatures detected.
Description
Technical field
The present invention relates to control to the high-frequency heating apparatus that has cooking plate.
Background technology
In the prior art, this type firing equipment detects cooking plate (referenced patent file 1) through the magnet in the heating clamber outside.
Fig. 4 shows existing firing equipment structure, and is of patent document 1.As shown in Figure 4, the firing equipment that is constituted comprises: heating clamber 1; Be placed on the right side of heating clamber and the dish acceptance frame 2 on the left side wall; Be installed in the rectangle dish (or cooking plate) 3 on the dish acceptance frame; Be placed on the heating clamber outside and be used to detect the magnet 4 of rectangle dish; And the checkout gear 5 that is used to respond the action of magnet 4.
[patent document 1] JP-A-10-196961
Summary of the invention
[problem that the present invention will solve]
Obviously, prior art constructions noted earlier needs magnet and switch to be used as checkout gear.This demand causes having to checkout equipment is placed on the problem in the limited space, and this checkout equipment has also improved expense.
When above adopting, being applied with the cooking plate of electric wave heating element,, cooking plate will not produce following problem as if not detected.At first, the heating mode (heating pattern) that utilizes cooking plate at first improves the temperature of electric wave heating element (electric wave heater) through frequency electromagnetic waves, then the radiant heat heated through heater.Therefore, if do not overturn article, will appear on its two sides and cure color.But; Adopt common cooking plate (or use above having be not the cooking plate of wave absorber) to carry out heating operation if be applied with the cooking plate of electric wave heating element above not adopting, the problem that thereupon produces is that the baking state makes the rising of heating clamber inner wall temperature undesired (or causing erythema).
The present invention is intended to solve above-mentioned existing in prior technology problem.The purpose of this invention is to provide a kind of high-frequency heating apparatus, it is characterized in that, detect the temperature of a plurality of temperature detecting point, thereby judge the existence of cooking plate/do not exist according to detected a plurality of temperature through temperature-detecting device.
[solving the technical scheme of said problem]
In order to solve above-mentioned existing in prior technology problem, high-frequency heating apparatus provided by the present invention comprises: the heating clamber that is used to deposit the article of needs heating; Be used to place the cooking plate of article, it has the electric wave heating element that applies on it; Be used to place the dish acceptance frame of cooking plate above; Detect the temperature-detecting device of article temperature; The heater of heated and cooking plate; And through judge the existence/non-existent control device of cooking plate in detected temperature of a plurality of temperature detecting point or variations in temperature by temperature-detecting device.
Therefore, need not to be provided with the existence that magnet or switch be applied with the cooking plate of electric wave heating element above just can detecting/do not exist.
The structure of first invention comprises: the heating clamber that is used to deposit the article of needs heating; Be used to place article above be applied with the cooking plate of electric wave heating element; Be used for placing the dish acceptance frame of cooking plate in the above; Detect the temperature-detecting device of article temperature; The heater of heated and cooking plate; And existence/non-existent control device of judging cooking plate through any several temperature of temperature-detecting device in detected temperature of a plurality of temperature detecting point or variations in temperature.Like this, just can detect the existence that is applied with the cooking plate of electric wave heating element above having/do not exist.
Second invention is designed so that temperature-detecting device constitutes is used for detecting the temperature that is placed on the article on the cooking plate, and make control device constitute according to the heating mode of the output control article of temperature-detecting device and/or heat time heating time section.As a result, magnet or switch need be installed and be applied with the existence of the cooking plate of electric wave heating element/do not exist above just can detecting.
Especially in first or second invention, according to the 3rd invention, the existence of cooking plate/do not exist and can judge through a plurality of temperature of from the detected a plurality of temperature of temperature-detecting device, under predetermined condition, selecting.As a result, can choose (extracted) since above be applied with the existence of the cooking plate of electric wave heating element/do not have the tangible part of difference on temperature that causes, thereby can accurately examine and determine the existence of cooking plate/do not exist.
Especially in first to the 3rd invention, according to the 4th invention, it is a plurality of being used for selecting the predetermined condition of a plurality of temperature from detected temperature.As a result, under the situation that a plurality of dish acceptance frames are installed, cooking plate is placed on the existence that where all can detect cooking plate/do not exist.
In first to fourth invention; According to the 5th invention, control device is selected by the detected a plurality of temperature of temperature-detecting device, under predetermined condition; Be in or be lower than under the situation of predetermined temperature in detected temperature and decision making, to stop not have the heating operation of cooking plate.As a result, can prevent as because the abnormal temperature rise that the generic operation of the baking of electric wave causes.
The 6th invention is characterised in that to be included in to determine under the non-existent situation of cooking plate and is used to urge the display unit of putting into cooking plate.
The 7th invention is characterised in that to be included in and determines under the non-existent situation of cooking plate, be used to urge the sound-producing device of putting into cooking plate.
[effect of the present invention]
High-frequency heating apparatus of the present invention can also be through being applied with the electric wave heating element above detecting when adopting temperature-detecting device to detect the article temperature the existence/do not exist and avoid of cooking plate because with caused abnormal temperature rises such as electric wave bakings.
Description of drawings
Fig. 1 is the external view of the high-frequency heating apparatus structure of first embodiment of the invention;
Fig. 2 is the operating unit enlarged drawing of identical high-frequency heating apparatus;
The flow chart of Fig. 3 shows the control content of identical high-frequency heating apparatus;
Fig. 4 is the structure chart of existing firing equipment.
The specific embodiment
Below will describe embodiments more of the present invention with reference to accompanying drawing.These embodiments described herein are not to be limitation of the present invention.
(embodiment 1)
Fig. 1 is the external view of the high-frequency heating apparatus structure of first embodiment of the present invention.
In Fig. 1, for example, Reference numeral 6 expressions need the article of heating to be placed on the situation on the cooking plate 3 like food and so on, and this cooking plate has the electric wave heating element and is placed on the dish acceptance frame 2 in the heating clamber 1.The high frequency wave generating apparatus 7 that the electric energy input is used to produce frequency electromagnetic waves through waveguide pipe 8.1 electric energy input port from waveguide pipe 8 to heating clamber, be provided with and be used to spread agitator 9 from the frequency electromagnetic waves of high-frequency heating apparatus 7, whereby frequency electromagnetic waves is supplied in the whole heating clamber equably.
On the top wall surface of heating clamber 1, form porosely 10, the infrared sensor 11a that plays the temperature-detecting device effect is placed on the position near hole 10.Infrared sensor 11a comprises sensor drive equipment 11b, and this infrared sensor can change input direction.As a result, the other end can be transferred to from an end of heating clamber 1 in the temperature detection position, and this action that passes through is called as " single pass ".In addition; Infrared sensor 11a is provided with eight detecting elements; Or each is through the infrared ray dosage in the 10 detection heating clambers 1 of hole, perhaps, and when being placed with cooking plate 3; Detect cooking plate 3 or be placed on the infrared ray dosage on heated article 6 surfaces on the cooking plate 3, and to the detected signal of control device 12 inputs.In order to respond this signal output; Control device 12 is configured the existence that is used for judging cooking plate/do not exist; Under the situation that does not have cooking plate, stop heating operation and through utilize following with the display unit of describing or phonation unit 19 prompting users why before culinary art is not accomplished heating operation be terminated and how handle this problem.In addition, be output as the basis, control device 12 is constituted section heat time heating time according to aforesaid signal output control heating mode and/or article with aforesaid signal.
Here, for single sweep operation, not that the detection position of eight detecting elements of infrared sensor 11a is had nothing in common with each other, but detect the temperature of this position.
Fig. 2 shows operating unit.The display unit that Reference numeral 15 expression is made up of liquid crystal etc., Reference numeral 16 expressions are used to begin the start key of heating operation; Reference numeral 17 expressions are used to stop the cancel key of heating operation; Reference numeral 18 expression two-sided barbecue keys (double-sided grill key).
Below with reference to Fig. 3 the effect and the operation of high-frequency heating apparatus are described.
At first, the user is applied with on the cooking plate 3 of electric wave heating element above article 6 are placed on, and dish acceptance frame 2 is accommodated and is placed in the heating clamber 1.After this, the two-sided barbecue key 18 on user's selection operation unit.Next, the user sets section heat time heating time (step S101), and presses start key 16 (step S102) so that the beginning heating operation.
In step S103, confirm that start key 16 has been pressed, if before start key 16, press cancel key 17, flow process is got back to S101.
After the culinary art beginning, control device 12 at first sends signal to the driving power of driving power 13 or high-frequency heating apparatus 7, so that not only start medium heating operation (step S104) but also read the detection signal (step S105) of (fetch) infrared sensor 11a.Meanwhile, in the input angle that changes infrared sensor 11a driving sensor drive unit 11b to read detection signal (step S106).Read the signal of eight elements of infrared sensor 11a with 0.35 second interval, therefore, can be through reading the data (or 152 points) of a screen (one screen) of heating clamber 1 for 19 times.Always with the scheduled time movable sensor drive unit 11b time, read the detection signal of infrared sensor 11a.
If at preset time (step S107), the temperature that is detected of the test point of under predetermined condition, selecting is higher than decision threshold (step S108), determines the cooking plate that is applied with electric heater above having placed, continue heating operation (step S109).
On the user has to use by error, be not applied with the cooking plate of electric wave heating element or used under the situation of the common cooking plate that does not have the electric wave heating element; The temperature that is detected of the test point of under predetermined condition, selecting is in or is lower than decision threshold, and the power supply (step S110) that cuts off high-frequency heating apparatus 7 is to finish heating operation (step S111).This end operation is pointed out through using display unit 15 or phonation unit 19.Do not exist under the situation that finishes heating operation through the cooking plate that is applied with the electric wave heating element above detecting; Can urge the user to put into cooking plate through display unit or audio unit; So the user can be known as any end heating operation and how handling again before culinary art is not accomplished.
With regard to embodiment described herein, in the preset time section, the temperature that is detected and the decision threshold of the test point under predetermined condition, selected compared.As a result, be applied with the existence of the cooking plate of electric wave heating element/do not exist above the decidable, thereby can avoid because abnormal temperature rise that baking or similar operations cause, thereby can guarantee safety.
In this high-frequency heating apparatus, can confirm the test point under predetermined condition, selected through test.Below will describe an instance of this test.At first, as known in the art, in this high-frequency heating apparatus, the position that is placed according to cooking plate, be that the electric wave that first order 2a, second level 2b or the third level 2c of dish acceptance frame 2 can foresee in the heating clamber 1 distributes.In so-called " preliminary heat time heating time ", article be not placed on 3 last times of cooking plate, can confirm at preset time, the point of the maximum temperature after a minute for example.Therefore; To condition A a plurality of points can be set; Will above be applied with the electric wave heating element cooking plate be placed under the situation on the first order of dish acceptance frame 2a, it is the highest that the temperature on these aspects is raised to, and be directed against condition B a plurality of points can be set; Will above be applied with the electric wave heating element cooking plate be placed under the situation on the second level of dish acceptance frame 2b, the temperature on these aspects is raised to the highest.
Also can be respectively from condition A, B ... and confirm decision threshold in the test that conforms to of corresponding conditions by that analogy.When the temperature that is detected of the test point of selecting by means of any judgement is in or is lower than decision threshold, can finish heating operation through determining the cooking plate that is applied with the electric wave heating element above not having.
The selection of described test point is based on the situation of preliminary heating operation, and this operation is under the situation of not placing article on the cooking plate, to carry out.Certainly, the present invention is not only limited to this, also can the present invention be set in article and be placed on situation about starting suddenly without any preliminary heating operation on the cooking plate.
Here, in this embodiment, infrared sensor 11 has used the sensor that is used to detect the temperature that is placed on the article on the cooking plate 3, and control device 12 is configured heating mode and/or the heat time heating time of controlling article 6 through the output of sensor.Therefore, the advantage of this infrared sensor 11 do not need to be to provide separately cooking plate to detect infrared sensor; It is also advantageous in that the existence that can not only detect cooking plate/do not exist and can also carries out even or effective heating operation to the article of need culinary art.Needless to say be also separately to be provided for detecting the existence/non-existent independent infrared sensor of cooking plate.
In addition, this embodiment has been described according to temperature itself and has been judged cooking plate existence/non-existent situation, also can judge that cooking plate exist/does not exist according to variation of temperature, for example rate of temperature change or the thermograde in the preset time section certainly.
Moreover situation about having described is that the infrared sensor that is used for the temperature-detecting device of detected temperatures has eight and is used for detecting ultrared element.But the quantity of element is not limited to eight, and can confirm optimal number according to the size or the similar parameters of heating clamber 1.Except that infrared sensor, also can use other can be at the sensor of heating indoor multipoint place detected temperatures.
[industrial applicability]
As stated; High-frequency heating apparatus of the present invention can detect the existence of cooking plate/do not exist; Can avoid whereby because the abnormal temperature that causes through electric wave baking or similar operation raises, therefore, this equipment not only can be made family expenses and also can be used in the commercial application simultaneously.
Claims (6)
1. high-frequency heating apparatus comprises:
Deposit the heating clamber of the article that need heating;
Be used to place a plurality of dish acceptance frames of cooking plate above, said cooking plate be used to place said article and above be applied with electric wave warmer;
Temperature-detecting device is used to detect the temperature of a plurality of temperature detecting point in the heating clamber;
Heat the heater of said article and said cooking plate; And
Control device, according to judging that from the temperature detection signal of said temperature-detecting device said cooking plate exists or do not exist, and under non-existent situation, control device stops the heating operation of said heater,
Wherein, said control device compares the temperature that is detected and the threshold value of the temperature detecting point under predetermined condition, selected, to judge existing/not existing of cooking plate.
2. high-frequency heating apparatus as claimed in claim 1, wherein, said temperature-detecting device is constituted as and is used to detect the temperature that is placed on the said article on the said cooking plate, and
Wherein said control device be configured according to the output of said temperature-detecting device control said article heating mode and/or heat time heating time section.
3. like each described high-frequency heating apparatus in the claim 1 to 2, wherein, said to be used for selecting the predetermined condition of a plurality of temperature from these detected temperature be a plurality of.
4. like each described high-frequency heating apparatus in the claim 1 to 2; Wherein, Said control device is chosen under the said predetermined condition by the detected a plurality of temperature of said temperature-detecting device, and is in or is lower than under the situation of predetermined temperature in said detected temperature and judge the heating operation that stops not exist cooking plate.
5. like each described high-frequency heating apparatus in the claim 1 to 2, wherein, also be included in and be used to urge the display unit of putting into cooking plate under the situation that does not have said cooking plate.
6. like each described high-frequency heating apparatus in the claim 1 to 2, wherein, also be included in and be used to urge the sound-producing device of putting into cooking plate under the situation that does not have said cooking plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP013393/06 | 2006-01-23 | ||
| JP2006013393A JP2007192518A (en) | 2006-01-23 | 2006-01-23 | High-frequency heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101008500A CN101008500A (en) | 2007-08-01 |
| CN101008500B true CN101008500B (en) | 2012-07-18 |
Family
ID=37986800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100040757A Expired - Fee Related CN101008500B (en) | 2006-01-23 | 2007-01-23 | High-frequency heating device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1811814A3 (en) |
| JP (1) | JP2007192518A (en) |
| CN (1) | CN101008500B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4536763B2 (en) * | 2007-09-11 | 2010-09-01 | パナソニック株式会社 | Heating device with steam generation function |
| CN102056356B (en) * | 2009-11-09 | 2012-12-26 | 台达电子工业股份有限公司 | Intelligent heating device and temperature measuring device |
| JP5467344B2 (en) * | 2009-12-17 | 2014-04-09 | パナソニック株式会社 | Cooker |
| JP5471436B2 (en) * | 2009-12-28 | 2014-04-16 | パナソニック株式会社 | Cooker |
| JP4502083B2 (en) * | 2010-03-05 | 2010-07-14 | パナソニック株式会社 | Heating device with steam generation function |
| JP5110714B2 (en) * | 2010-06-15 | 2012-12-26 | パナソニック株式会社 | Heating device with steam generation function |
| JP5625613B2 (en) * | 2010-08-20 | 2014-11-19 | パナソニック株式会社 | Cooker |
| JP5625618B2 (en) * | 2010-08-24 | 2014-11-19 | パナソニック株式会社 | Cooker |
| JP5235975B2 (en) * | 2010-12-15 | 2013-07-10 | 三菱電機株式会社 | Cooker |
| DE102014210672A1 (en) * | 2014-06-05 | 2015-12-17 | BSH Hausgeräte GmbH | Cooking device with light pattern projector and camera |
| JP6967707B2 (en) * | 2016-08-22 | 2021-11-17 | パナソニックＩｐマネジメント株式会社 | High frequency heating device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189888A (en) * | 1995-07-12 | 1998-08-05 | 松下电器产业株式会社 | Method of uniformly heating plurality of foodstuff and heat cooking appts. |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05264042A (en) * | 1992-03-18 | 1993-10-12 | Matsushita Electric Ind Co Ltd | Heating and cooking device |
| JPH07103488A (en) * | 1993-10-05 | 1995-04-18 | Matsushita Electric Ind Co Ltd | Cooker |
| JPH102562A (en) * | 1996-06-13 | 1998-01-06 | Toshiba Corp | Heating cooker |
| JP3681931B2 (en) * | 1999-08-25 | 2005-08-10 | 株式会社東芝 | microwave |
| JP2001248840A (en) * | 2000-03-03 | 2001-09-14 | Mitsubishi Electric Corp | Heating cooking system |
-
2006
- 2006-01-23 JP JP2006013393A patent/JP2007192518A/en active Pending
-
2007
- 2007-01-23 CN CN2007100040757A patent/CN101008500B/en not_active Expired - Fee Related
- 2007-01-23 EP EP07100994A patent/EP1811814A3/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189888A (en) * | 1995-07-12 | 1998-08-05 | 松下电器产业株式会社 | Method of uniformly heating plurality of foodstuff and heat cooking appts. |
Non-Patent Citations (5)
| Title |
|---|
| JP特开2001-248840A 2001.09.14 |
| JP特开平10-2562A 1998.01.06 |
| JP特开平5-264042A 1993.10.12 |
| JP特开平7-103488A 1995.04.18 |
| JP特开平8-312966A 1996.11.26 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101008500A (en) | 2007-08-01 |
| EP1811814A2 (en) | 2007-07-25 |
| EP1811814A3 (en) | 2013-03-06 |
| JP2007192518A (en) | 2007-08-02 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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Granted publication date: 20120718 Termination date: 20140123 |