CN100541004C - Micro-wave oven - Google Patents
Micro-wave oven Download PDFInfo
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- CN100541004C CN100541004C CNB2003101073849A CN200310107384A CN100541004C CN 100541004 C CN100541004 C CN 100541004C CN B2003101073849 A CNB2003101073849 A CN B2003101073849A CN 200310107384 A CN200310107384 A CN 200310107384A CN 100541004 C CN100541004 C CN 100541004C
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- temperature
- culinary art
- infrared ray
- food
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Abstract
The invention provides a kind of micro-wave oven, comprise culinary art chamber, pallet, control room and drive unit, wherein: in described control room, be provided with the temperature awareness tool that constitutes with a plurality of infrared ray sensor arrays, and can detect a plurality of perception field on the pallet simultaneously; In the control room, also be provided with the microcontroller that is connected with infrared ray sensor portion with signal input part, the temperature deviation in a plurality of perception field of detecting according to the temperature awareness tool is judged the output of the internal state control heat energy of culinary art chamber, microcontroller with contain the drive unit of heater-driven portion and be connected with driven by magnetron portion, this drive unit receives the heat energy output control signal of microcontroller, and heat or driven by magnetron portion microwave that heater produces are exported to the inside of culinary art chamber.To be this micro-wave oven can accurately judge the temperature of food and the internal temperature of culinary art chamber by a plurality of perception field to beneficial effect, and the location independent of placing with food and reduce the error that temperature is judged can reach desirable state to the heating of food.
Description
Technical field
The present invention relates to micro-wave oven, particularly the top, chassis of micro-wave oven inside is divided into a plurality of fields after, measure the micro-wave oven of its temperature simultaneously.
Background technology
As shown in Figure 1, in the prior art,, used infrared ray sensor 3, by the temperature detection result control heating-up temperature of infrared ray sensor 3 as temperature-detecting device in order to detect the temperature of the food of cooking chamber interior.When measuring the micro-wave oven internal temperature by single infrared ray sensor as mentioned above, be merely able to detect a part of field on culinary art T top, chamber interior chassis.Therefore, but when food is in position beyond the detection range, can not accurately measure the temperature of food, thereby, heating also just can not be controlled exactly to food.
As shown in the figure, infrared ray sensor 3 is arranged on a side of culinary art chamber interior.At this moment, infrared ray sensor 3 is with single formation.Therefore, can only a part of field on T top, chassis be detected by the detection angles of the single infrared ray sensor 3 that when product rolls off the production line, has been determined.That is, be merely able to detect a part of perception field on T top, chassis.
As mentioned above, in the prior art, only judge the temperature of culinary art chamber interior by single infrared ray sensor, less in this perception field owing to single infrared ray sensor, so can not accurately judge the state of food with the temperature of measuring, its result food can occur by phenomenon such as burned or not exclusively ripe.
Summary of the invention
In order to solve the problem in the above-mentioned technology, order of the present invention provides a kind of inside that will cook the chamber and is divided into a plurality of detection ranges, measures the micro-wave oven of culinary art chamber interior temperature with this.
In order to reach the foregoing invention purpose, technical scheme of the present invention provides a kind of micro-wave oven, comprise the indoor pallet that is provided with of culinary art, the control room that is connected with power supply and contain heater-driven portion and the drive unit of driven by magnetron portion, wherein: in described control room, be provided with the temperature awareness tool, these parts are the infrared ray sensor parts that constitute with a plurality of infrared ray sensor arrays, described infrared ray sensor portion includes the upper sensor frame, upper sensor basket and lower sensor frame, the array of lower sensor basket and sensor PCB constitutes, and a plurality of perception field on the pallet is detected respectively; In described control room, also be provided with the microcontroller that is connected with described infrared ray sensor portion with signal input part, the temperature deviation in a plurality of perception field of detecting according to the temperature awareness tool is judged the output of the internal state control heat energy of culinary art chamber, microcontroller with contain the drive unit of heater-driven portion and be connected with driven by magnetron portion, this drive unit receives the heat energy output control signal of microcontroller, and heat that described heater-driven portion is produced or microwave signal are to the output of the inside of culinary art chamber.
Effect of the present invention is that this micro-wave oven can accurately be judged the temperature of food and the internal temperature of culinary art chamber by a plurality of perception field, reduced the error that temperature is judged with the location independent of food placement, therefore the heating to food can reach desirable state.
Description of drawings
Fig. 1: the temperature detecting sensor presentation graphs of existing micro-wave oven;
Fig. 2: the temperature detecting sensor presentation graphs of micro-wave oven of the present invention;
Fig. 3: control the control pie graph that micro-wave oven of the present invention drives.
Among the figure:
30: infrared ray sensor T: pallet
40: microcontroller 50: heater-driven portion
60: the A1 of driven by magnetron portion: upper sensor frame
A2: lower sensor frame B1: upper sensor basket
B2: lower sensor basket C: sensor PCB
The specific embodiment
Below, reach embodiment in conjunction with the accompanying drawings micro-wave oven of the present invention is elaborated.
Shown in Fig. 2,3, the culinary art chamber of micro-wave oven body of the present invention to heat after food is put into, and the control room formation that electrical parts such as magnetron are installed, and be provided with the operation panel that can control micro-wave oven work.Operation panel is provided with a plurality of buttons of the working signal that can import micro-wave oven, and the display part that can represent the working signal of micro-wave oven.
As shown in Figure 2, culinary art chamber interior one side at micro-wave oven is equipped with the array infrared ray sensor (hereinafter to be referred as infrared ray sensor) that constitutes with a plurality of infrared ray sensors.Promptly the array by upper sensor frame A1, upper sensor basket B1 and lower sensor frame A2, lower sensor basket B2 and sensor PCB C constitutes, and a plurality of perception field on the pallet T is detected respectively.
As mentioned above, in the present invention, the temperature detecting sensor that uses for the internal temperature of measuring the culinary art chamber constitutes with a plurality of infrared ray sensors, and can detect the temperature in different perception field by each infrared ray sensor.That is, distinguish the 1st perception field that is placed with the field of food in the upper detection of chassis T; The 2nd perception field of not having the food field in the upper detection of chassis T; And after detecting the 3rd perception field in the field that exceeds chassis T and food, with this correct state of temperature of judging culinary art chamber interior temperature and food.In the present invention promptly, the detection angles according to infrared ray sensor detects the perception field that has nothing in common with each other.
As shown in Figure 3, micro-wave oven of the present invention comprises: power suppling part 10, signal input part 20, driven by magnetron portion 60, heater-driven portion 50, infrared ray sensor 30 and microcontroller 40, and wherein power suppling part 10 is to the product supply power; Signal input part 20 is imported cooking signals; With the drive unit that contains heater-driven portion 50 and driven by magnetron portion 60, driven by magnetron portion 60 is according to cooking signals control driving magnetron; The driving of heater-driven portion 50 control heaters; Infrared ray sensor 30 is judged the temperature of the food of culinary art chamber interior; After microcontroller 40 is grasped the temperature of culinary art chamber interior, control heating according to this to culinary art chamber interior food.
To the product supply power, the user puts into food to the inside of culinary art chamber by power suppling part 10, and by signal input part 20 cooking signals is imported.Cooking signals is delivered on the microcontroller 40, and the microcontroller 40 that receives above-mentioned cooking signals drives magnetron or heater according to cooking signals.
When cooking signals was the microwave cooking signal, microcontroller 40 drove driven by magnetron portion 60, made the internal emission of microwave to the culinary art chamber.When if cooking signals is the heater cooking signals, microcontroller 40 drives heater-driven portion 50, and the culinary art chamber interior is heated with the heat of heater.On the contrary, when cooking signals was automatic cooking signals, microcontroller 40 drove driven by magnetron portion 60 and heater-driven portion 50 simultaneously, made the inside of microwave and heater heat directive culinary art simultaneously chamber, with this food was heated at short notice.
As mentioned above, when the control micro-wave oven drives,, judge the internal temperature state of culinary art chamber and the state of temperature of food according to the temperature value that the infrared ray sensor 30 by culinary art chamber interior one side detects.
At first, the user imports cooking signals by signal input part 20, and the culinary art chamber interior is begun to heat, and this moment, the heat of microwave or heater outputed to the inside of cooking the chamber, and pallet T begins to rotate simultaneously.The food that is positioned over pallet T top so also is rotated motion, at this moment, is divided into certain field as shown in the figure by infrared ray sensor 30 detected perception fields.Each perception field can be detected separately, and after judging the state of food according to the result who detects, the output of control energy.
When detection is positioned over the temperature of the food on the pallet T, carry out control action according to determined temperature value.To the inside of culinary art chamber output heat energy (heater heat or microwave), infrared ray sensor 30 detects the internal temperature of culinary art chamber simultaneously for this reason.At this, judge the position of food according to the culinary art chamber interior temperature that each sensor by infrared ray sensor 30 detects, and, make the culinary art of food reach optimum state with this output of controlling heat energy.At this moment, according to by the perceived culinary art chamber interior variation of temperature of infrared ray sensor 30, judge whether food is positioned at the central authorities of pallet T (the 1st field) or breaks away from the top (the 2nd field) of pallet T of central authorities or the inside (the 3rd field) of the culinary art chamber of disengaging pallet T.
For example, if food is positioned at the central authorities of pallet, infrared ray sensor 30 was measured the internal temperature of culinary art chamber when this moment, heat energy was output.At this moment, can detect the state of temperature in a plurality of fields on the pallet T simultaneously.That is the deviation of detected culinary art chamber interior variation of temperature perception culinary art chamber interior temperature, according to passing through each infrared ray sensor 30.Its result judges food and is positioned on the 1st field, thus heat energy evenly exported, and at short notice food is heated to perfect condition.
If food is positioned on the eccentric position of pallet, infrared ray sensor 30 detected the internal temperature of culinary art chamber when this moment, heat energy was output.At this moment, according to the internal temperature deviation of cooking the chamber by each infrared ray sensor 30 detected temperature value perception.Its result judges food and is positioned on the 2nd field, thereby correctly controls the size of heat time heating time and heat energy according to the eccentric position of food, with this food is heated.
When the detection range of food disengaging infrared ray sensor 30, and be positioned at when cooking indoor eccentric position, heat energy is output, and infrared ray sensor 30 detects the internal temperature of culinary art chambers simultaneously.At this moment, according to the deviation of the variation perception culinary art chamber interior temperature by the detected temperature value of each infrared ray sensor 30.And judge food according to the variation of temperature value and broken away from pallet T fully, and to break away from pallet T the heat time heating time of the Deviation Control culinary art chamber interior of the culinary art chamber interior temperature of perception and the size of heat energy.At this moment, the size of heat time heating time and heat energy compensates suitable heat time heating time and heat energy according to the eccentric position of food.
As mentioned above, in the time of the inside of culinary art chamber input heat energy, detect the internal temperature of culinary art chamber by infrared ray sensor 30, so judge the temperature of culinary art chamber interior food and temperature on every side thereof according to the variation of the temperature value that transmits from infrared ray sensor 30.
The temperature that the temperature value perception that detects by infrared ray sensor 30 changes by the heating to food, and according to the placement location adjusting heat time heating time of food and the size of heat energy, with the culinary art of this suitable control according to temperature deviation.
As mentioned above,, accurately measure the temperature and the environment temperature thereof of food, and judge the heated condition of food according to the state of temperature of the food in perception field.
As mentioned above, basic fundamental thought of the present invention is: the array infrared ray sensor that will constitute with a plurality of infrared ray sensors with different perception field is arranged on inside one side of cooking the chamber, and according to the internal temperature of the culinary art chamber of perception by the perception field of array infrared ray sensor and the suitable control of state of temperature of food the inside of culinary art chamber being heated.
The scope of the present invention is not confined on the above-mentioned specific embodiment, and simultaneously, those skilled in the art can carry out various deformation to the present invention within the protection domain of claims, all within the protection domain of claims.
Claims (1)
1, a kind of micro-wave oven, comprise the indoor pallet that is provided with of culinary art, the control room that is connected with power supply and contain heater-driven portion and the drive unit of driven by magnetron portion, it is characterized in that: in described control room, be provided with temperature awareness tool (30), these parts (30) are the infrared ray sensor parts that constitute with a plurality of infrared ray sensor arrays, described infrared ray sensor parts (30) include upper sensor frame (A1), upper sensor basket (B1) and lower sensor frame (A2), the array of lower sensor basket (B2) and sensor PCB (C) constitutes, and a plurality of perception field on the pallet (T) is detected respectively; In described control room, also be provided with the microcontroller (40) that is connected with described infrared ray sensor parts (30) with signal input part (20), the temperature deviation in a plurality of perception field of detecting according to the temperature awareness tool is judged the output of the internal state control heat energy of culinary art chamber, microcontroller (40) with contain the drive unit of heater-driven portion (50) and be connected with driven by magnetron portion (60), this drive unit receives the heat energy output control signal of microcontroller (40), and heat that described heater-driven portion is produced or driven by magnetron portion microwave signal are to the output of the inside of culinary art chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101073849A CN100541004C (en) | 2003-12-12 | 2003-12-12 | Micro-wave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101073849A CN100541004C (en) | 2003-12-12 | 2003-12-12 | Micro-wave oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1626886A CN1626886A (en) | 2005-06-15 |
| CN100541004C true CN100541004C (en) | 2009-09-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101073849A Expired - Fee Related CN100541004C (en) | 2003-12-12 | 2003-12-12 | Micro-wave oven |
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| Country | Link |
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| CN (1) | CN100541004C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943428B (en) * | 2009-07-10 | 2014-06-04 | 乐金电子(天津)电器有限公司 | Temperature sensor of microwave oven |
| CN102221225B (en) * | 2010-04-13 | 2015-04-29 | 乐金电子(天津)电器有限公司 | Temperature sensor structure of microwave oven |
| CN105240880B (en) * | 2015-09-25 | 2018-04-27 | 四川长虹电器股份有限公司 | A kind of method, controller and micro-wave oven for controlling micro-wave oven |
| CN108614597B (en) * | 2018-05-31 | 2020-11-24 | 广东美的厨房电器制造有限公司 | Heating control method and device for cooking appliance and cooking appliance |
| DE102019206892A1 (en) * | 2019-05-13 | 2020-11-19 | BSH Hausgeräte GmbH | Cooking appliance with sensor units arranged outside the cooking space |
-
2003
- 2003-12-12 CN CNB2003101073849A patent/CN100541004C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1626886A (en) | 2005-06-15 |
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Granted publication date: 20090916 Termination date: 20100112 |