CN101749763A - Temperature sensor structure of microwave oven - Google Patents
Temperature sensor structure of microwave oven Download PDFInfo
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- CN101749763A CN101749763A CN200810153732A CN200810153732A CN101749763A CN 101749763 A CN101749763 A CN 101749763A CN 200810153732 A CN200810153732 A CN 200810153732A CN 200810153732 A CN200810153732 A CN 200810153732A CN 101749763 A CN101749763 A CN 101749763A
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Abstract
The invention relates to a temperature sensor structure of a microwave oven, which comprises a sensor probe and a sensor shell; a sensor base with gradient is arranged outside a furnace chamber; the sensor shell is fixed in a slide way of the sensor base; a single-chip microcomputer controls the sensor shell to slide; the measurement direction of the sensor probe is in parallel with the direction of the slide way; and the field of view of the sensor probe is changed with the position movement, until the single-chip microcomputer judges the field of view of the sensor probe has fully covered the food in the furnace chamber according to the temperature of all sampling points. The field of view of the sensor probe can be synchronously changed according to the size of the food heated in the furnace chamber, so that as many sampling points as possible of the sensor probe are dropped on the food; and the more sampling points which are fully covered on the food, the fuller the temperature distributed on all the points of the food, the closer to the actual status of the food heating, so the heating process is precisely controlled.
Description
Technical field
The invention belongs to the technical field of micro-wave oven, be specifically related to a kind of sensor outer housing is arranged in the slideway, sensor probe is moved along slideway, thereby change the field range of sensor probe in furnace chamber, can obtain the arrangement of temperature sensor of the micro-wave oven of food heating situation in the micro-wave oven exactly.
Technical background
Micro-wave oven is that magnetron produces microwave behind power connection, and these microwave irradiations on heating objects such as food and the device of cooking food.Such micro-wave oven can be divided into home-use micro-wave oven that is equipped with small-sized magnetron and the commerce micro-wave oven that is equipped with large-scale or a plurality of magnetrons.Micro-wave oven can also be divided into home-use micro-wave oven according to the mode of heat food and generally adopt rotation to fill the glass rotating disk mode of food, and commerce mainly adopts the figure of confusion mode of scattered radiation microwave with micro-wave oven.Commercial mainly be applicable to the convenience store that utilization rate is high and the food supply retail shop of cooking food at short notice, so generally need the high relatively output of more home-use micro-wave oven with micro-wave oven.
Fig. 1 is the microwave oven structure schematic diagram; Fig. 2 is the schematic diagram of arrangement of temperature sensor of the micro-wave oven of prior art.
As shown in Figure 1 and Figure 2, micro-wave oven comprises by the shell that forms outward appearance, furnace chamber 20 and is positioned at the electricity storage chamber 30 of furnace chamber 20 right side sides, also comprises the door 40 that is located at furnace chamber 20 fronts.Right-hand member at the lateral surface of door 40 is provided with handle, and the two ends of handle are screwed with door 40 and are connected.Shell forms the micro-wave oven outward appearance, also plays the effect of the inner furnace chamber 20 of protection simultaneously, so shell generally will be made of the steel plate with certain intensity.Shell comprises the rear board 17 at the base plate 13 below the top panel 11 of the top and two sides that cover furnace chamber 20 simultaneously, protection, the front panel 15 that forms furnace chamber 20 fronts and protection furnace chamber 20 back sides.Furnace chamber 20 is spaces of cooking such as cooking food thing, constitutes the food after both can having put into food and take out the cooking from opening the place ahead of furnace chamber 20 by the tetragonal chest of front openings.There is certain space the right side side of furnace chamber 20, and this space is to be the electricity storage chamber 30 that electronic unit is set, and electricity storage chamber 30 inside are provided with a plurality of electronic units such as transformer 31, magnetron 33, capacitor 37.Be provided with control panel assembly 26 in the front of electricity storage chamber 30.
In addition, the inside of electricity storage chamber 30 is provided with demarcation strip 39 between transformer 31 and radiator fan 35.Transformer 31, radiator fan 35, capacitor 37 and demarcation strip 39 be fixed on sub-panel above.Between sub-panel and base plate 13 top at intervals.
In a plurality of electronic units, transformer 31 and magnetron 33 produce the microwave of irradiation furnace chamber 20 inside.Electronic unit generates heat in the process that produces microwave, so in the time of cooking food, the temperature of electricity storage chamber 30 rises.Need to suck extraneous air for the electricity storage chamber 30 of cooling off heating, so radiator fan 35 sucks extraneous air.
In the arrangement of temperature sensor 60 of the micro-wave oven of prior art, sensor probe is arranged on outside the furnace chamber 20 of micro-wave oven, see through the peephole that forms on the furnace chamber and receive the infrared signal that food sends in the furnace chamber and measure food temperature, temperature signal is converted to the controller that the signal of telecommunication is input to micro-wave oven; Sensor outer housing holds protection and fixation of sensor probe.
But, there is following problem in the prior art:
In the prior art in the arrangement of temperature sensor of micro-wave oven, sensor outer housing is fixed on the sidewall of micro-wave oven furnace chamber, the visual field of sensor probe covers totally to meal tray, and the visual field of sensor probe keeps constant, the sample point employing multipoint mode distribution of sensor probe.The volume of the heating object on meal tray hour, always having most of sample point can't drop on the heating object, but directly drop on the meal tray, the measurement result of this class sample point does not have real value, can only reject by algorithm, and in fact have only the small part sample point can object be measured, therefore can't accurately draw the actual heating state of food.
Summary of the invention
The present invention is arranged on sensor outer housing in the slideway for the technical problem that exists in the solution prior art provides a kind of, sensor probe is moved along slideway, thereby change the field range of sensor probe in furnace chamber, can obtain the arrangement of temperature sensor of the micro-wave oven of food heating situation in the micro-wave oven exactly.
The technical scheme that the present invention takes for the technical problem that exists in the solution prior art is:
The arrangement of temperature sensor of micro-wave oven of the present invention, comprise: sensor probe, be arranged on outside the furnace chamber of micro-wave oven, see through the peephole that forms on the furnace chamber and receive the infrared signal that food sends in the furnace chamber and measure food temperature, temperature signal is converted to the controller that the signal of telecommunication is input to micro-wave oven; Sensor outer housing holds protection and fixation of sensor probe, and sensor probe adopts a plurality of sample points simultaneously food temperature to be measured, and each sample point is arranged point-blank; Sensor base with gradient is set outside furnace chamber, sensor outer housing is fixed in the slideway of sensor base, and sensor outer housing can be slided along slideway, the while sensor probe can be followed sensor outer housing and be moved along the slideway direction, the direction of measurement of sensor probe is parallel with the slideway direction, and the field range of sensor probe moves along with its position and changes; By the slip of Single-chip Controlling sensor outer housing, all cover food in the furnace chamber until the visual field that single-chip microcomputer is judged sensor probe according to the temperature value of each sample point.
The present invention can also adopt following technical measures:
Described sensor outer housing is fixed in the slideway by slide block, drives crank by stepper motor mobile the provide power of sensor outer housing in slideway is provided; The running of stepper motor is controlled by single-chip microcomputer.
The slide block and the sensor outer housing that are provided with on the described sensor outer housing are formed as one.
The sample point of described sensor probe all drops on same the diameter of meal tray.
The field range of described sensor probe is the 36%-81% of meal tray area.
Advantage and good effect that the present invention has are:
In the arrangement of temperature sensor of micro-wave oven of the present invention, sensor base with gradient is set outside furnace chamber, sensor outer housing is fixed in the slideway of sensor base, slip by the Single-chip Controlling sensor outer housing, the direction of measurement of sensor probe is parallel with the slideway direction, the field range of sensor probe moves along with its position and changes, and all covers food in the furnace chamber until the visual field that single-chip microcomputer is judged sensor probe according to the temperature value of each sample point.The visual field of sensor probe can change synchronously according to the food volume of furnace chamber inside heating, and sensor probe sample point is as much as possible all dropped on the food, and the feedback temperature difference of guaranteeing temperature sensor is in acceptable error range.The sample point that covers fully on the food is many more, and the temperature distribution state of each point just can be got over all sidedly and obtain on the food, also just approaches the actual state of food heating more, thereby heating process is controlled accurately.
Description of drawings
Fig. 1 is the microwave oven structure schematic diagram;
Fig. 2 is the schematic diagram of arrangement of temperature sensor of the micro-wave oven of prior art;
Fig. 3 is the micro-wave oven schematic internal view that the arrangement of temperature sensor of micro-wave oven of the present invention has been installed;
Fig. 4 is the schematic diagram of the arrangement of temperature sensor of micro-wave oven of the present invention;
Fig. 5 is the structural representation of sensor base inside in the arrangement of temperature sensor of micro-wave oven of the present invention.
The specific embodiment
It is following that the present invention is described in detail with reference to drawings and Examples:
Fig. 3 is the micro-wave oven schematic internal view that the arrangement of temperature sensor of micro-wave oven of the present invention has been installed; Fig. 4 is the schematic diagram of the arrangement of temperature sensor of micro-wave oven of the present invention; Fig. 5 is the structural representation of sensor base inside in the arrangement of temperature sensor of micro-wave oven of the present invention.
Extremely shown in Figure 5 as Fig. 3, the arrangement of temperature sensor 60 of micro-wave oven of the present invention, comprise: sensor probe 61, be arranged on outside the furnace chamber of micro-wave oven, see through the peephole that forms on the furnace chamber and receive the infrared signal that food sends in the furnace chamber and measure food temperature, temperature signal is converted to the controller that the signal of telecommunication is input to micro-wave oven; Sensor outer housing 62, hold protection and fixation of sensor probe, sensor probe adopts a plurality of sample points simultaneously food temperature to be measured, each sample point all drops on same the diameter of meal tray 70, when running of microwave oven, meal tray rotation, position that each sample point lives through forms a planar range, this scope be exactly the measurement category of all sample points be the field range of sensor probe; Sensor base 63 with gradient is set outside furnace chamber, sensor outer housing is fixed in the slideway 64 of sensor base, and sensor outer housing can be slided along slideway, the while sensor probe can be followed sensor outer housing and be moved along the slideway direction, the direction of measurement of sensor probe is parallel with the slideway direction, the field range of sensor probe moves along with its position and changes, when sensor probe moves to the place ahead of slideway, its field range is just dwindled thereupon during promptly more near furnace chamber, when sensor probe moves to the rear of slideway, be sensor probe during more away from furnace chamber its field range just increase thereupon, by moving forward and backward, the field range of sensor probe can change between the 36%-81% of meal tray area; By the slip of Single-chip Controlling sensor outer housing, all cover food in the furnace chamber until the visual field that single-chip microcomputer is judged sensor probe according to the temperature value of each sample point.
Sensor outer housing is fixed in the slideway by integrally formed slide block 65, the bottom of sensor outer housing is connected with bent axle 66, stepper motor drives the crank rotation, bent axle promotes sensor outer housing can front-rear reciprocation movement in slideway, the running of stepper motor is controlled by single-chip microcomputer, for the visual field that makes sensor probe accurately covers the food of heating, stepper motor can turn round or stop at any time.
In the arrangement of temperature sensor of micro-wave oven of the present invention, sensor base with gradient is set outside furnace chamber, sensor outer housing is fixed in the slideway of sensor base, slip by the Single-chip Controlling sensor outer housing, the direction of measurement of sensor probe is parallel with the slideway direction, the field range of sensor probe moves along with its position and changes, and all covers food in the furnace chamber until the visual field that single-chip microcomputer is judged sensor probe according to the temperature value of each sample point.The visual field of sensor probe can change synchronously according to the food volume of furnace chamber inside heating, and sensor probe sample point is as much as possible all dropped on the food, and the feedback temperature difference of guaranteeing temperature sensor is in acceptable error range.The sample point that covers fully on the food is many more, and the temperature distribution state of each point just can be got over all sidedly and obtain on the food, also just approaches the actual state of food heating more, thereby heating process is controlled accurately.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention with preferred embodiment openly as above, yet, be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, be the content that does not break away from technical solution of the present invention in every case, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all belong in the scope of technical solution of the present invention.
Claims (5)
1. the arrangement of temperature sensor of a micro-wave oven, comprise: sensor probe, be arranged on outside the furnace chamber of micro-wave oven, see through the peephole that forms on the furnace chamber and receive the infrared signal that food sends in the furnace chamber and measure food temperature, temperature signal is converted to the controller that the signal of telecommunication is input to micro-wave oven; Sensor outer housing holds protection and fixation of sensor probe, and it is characterized in that: sensor probe adopts a plurality of sample points simultaneously food temperature to be measured, and each sample point is arranged point-blank; Sensor base with gradient is set outside furnace chamber, sensor outer housing is fixed in the slideway of sensor base, and sensor outer housing can be slided along slideway, the while sensor probe can be followed sensor outer housing and be moved along the slideway direction, the direction of measurement of sensor probe is parallel with the slideway direction, and the field range of sensor probe moves along with its position and changes; By the slip of Single-chip Controlling sensor outer housing, all cover food in the furnace chamber until the visual field that single-chip microcomputer is judged sensor probe according to the temperature value of each sample point.
2. the arrangement of temperature sensor of micro-wave oven according to claim 1, it is characterized in that: sensor outer housing is fixed in the slideway by slide block, drives crank by stepper motor mobile the provide power of sensor outer housing in slideway is provided; The running of stepper motor is controlled by single-chip microcomputer.
3. the arrangement of temperature sensor of micro-wave oven according to claim 2, it is characterized in that: the slide block and the sensor outer housing that are provided with on the sensor outer housing are formed as one.
4. the arrangement of temperature sensor of micro-wave oven according to claim 1, it is characterized in that: the sample point of sensor probe all drops on same the diameter of meal tray.
5. the arrangement of temperature sensor of micro-wave oven according to claim 1, it is characterized in that: the field range of sensor probe is the 36%-81% of meal tray area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810153732A CN101749763A (en) | 2008-12-04 | 2008-12-04 | Temperature sensor structure of microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810153732A CN101749763A (en) | 2008-12-04 | 2008-12-04 | Temperature sensor structure of microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101749763A true CN101749763A (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810153732A Pending CN101749763A (en) | 2008-12-04 | 2008-12-04 | Temperature sensor structure of microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101749763A (en) |
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2008
- 2008-12-04 CN CN200810153732A patent/CN101749763A/en active Pending
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Open date: 20100623 |