CN1924452A - Control method for cooling protection of microwave oven with temperature checking device - Google Patents
Control method for cooling protection of microwave oven with temperature checking device Download PDFInfo
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- CN1924452A CN1924452A CN 200510014938 CN200510014938A CN1924452A CN 1924452 A CN1924452 A CN 1924452A CN 200510014938 CN200510014938 CN 200510014938 CN 200510014938 A CN200510014938 A CN 200510014938A CN 1924452 A CN1924452 A CN 1924452A
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Abstract
This invention relates to one microwave overheat protection and control method with temperature test device, which comprises the following steps: reading cook chamber temperature; judging cook chamber temperature; controlling according to judge results, wherein, the said cook temperature judging step as: firstly judging whether the chamber temperature is larger than set one, if not microwave normally runs; if yes then judging cook temperature is over set temperature.
Description
Technical field
The present invention relates to a kind of micro-wave oven.Particularly relate to a kind of temperature that can in time detect in the body of heater, reach accurately control method the cooling protection of microwave oven with temperature-detecting device of body of heater cooling, cooling purpose.
Background technology
Generally, micro-wave oven is that (per second is about 2,450MHz) is heating source, the intermolecular frictional heat that is taken place by the molecules align that confuses food and arrange the utensil of food with high frequency waves.
Fig. 1 is the decomposing schematic representation of the general structure of micro-wave oven, and Fig. 2 is the planar structure schematic diagram of the internal structure of Fig. 1.
As shown in Figure 1, existing micro-wave oven comprises: by front panel 11 and rear board 13 and the cooking cavity assembly 10 that constitutes; Cooking cavity 12 in the 10 inner sides formation of cooking cavity assembly; Be formed on cooking cavity assembly 10 inner opposite sides, be provided with the electric control chamber 14 of various electric components; Be arranged on the shell 20 in the outside of cooking cavity assembly 10.
Front panel 11 is installed in the front of cooking cavity assembly 10, constitutes the front of cooking cavity assembly 10, and the front of front panel 11 is provided with the door 30 that is used to open and close cooking cavity 12 inside.
Shell 20 form micro-wave ovens two sides and above outward appearance, and cooking cavity 12 and electric control chamber 14 are protected from the outside with front panel 11 and rear board 13.
The a plurality of intercommunicating pore 13a of formation that are communicated with cooking cavity 12 inner spaces to the central part greatly of plate 13 in the back, in the back the back of plate 13 be provided with and rear board 13 between have the convection cell 40 in any space.
In the space that convection cell 40 is had, be provided with heater 41, and the convection fan 42 that makes the hot gas convection current in cooking cavity 12 that takes place from heater 41 is installed, and being equipped with in the back of convection cell 40 in order to drive convection fan 42, and the motor 43 that is connected with the axle of convection fan 42.
Be installed with the convection cell cover 50 of parcel convection cell 40 and motor 43 in the back on the plate 13, convection cell 40 and motor 43 are protected from the outside.
The back of convection cell cover 50 is formed with a plurality of air suction inlet 50a that can flow into air from the outside.
Comprise the magnetron 14a that generates microwave by installation on the electric control chamber 14, supply with high-tension high-tension transformer 14b to magnetron 14a, and the fan electromotor 14d of the blowing fan 14c of the various electric components of cooling electric control chamber 14 inside and driving blowing fan 14c.
Fan electromotor 14d is fixedly mounted on the inner face of rear board 13 1 sides, and around blowing fan 14c wind deflector is installed, thereby the guiding air is mobile.
But; existing hot air convection type ripple stove does not have the cooling protection measure; just in body of heater, there are not to be provided with the device or the parts that the information of cooking cavity temperature in time can be fed back to control circuit; when micro-wave oven occurs because some improper factors cause after finishing the cool time of regulation; do not reach body of heater is carried out enough cooling purpose; and control circuit and not knowing; still control micro-wave oven and proceed the heating operation; so micro-wave oven still remains in operation, thereby will cause the damage and the security incident of micro-wave oven.
Summary of the invention
Technical problem to be solved by this invention is, a kind of temperature that can in time detect in the body of heater is provided, and reaches accurately the control method to the cooling protection of microwave oven with temperature-detecting device of body of heater cooling, cooling purpose.
The technical solution adopted in the present invention is: a kind of control method with cooling protection of microwave oven of temperature-detecting device includes as the next stage and finishes: the stage that cooking cavity is lowered the temperature; Read the stage of cooking cavity temperature; To cooking the stage that cavity temperature is judged; The stage of micro-wave oven being controlled according to judged result.
The described stage that cooking cavity temperature is judged is to judge in two steps, whether at first judges cooking cavity temperature greater than the temperature of having set, if be not more than the temperature of having set, micro-wave oven normally moves; If greater than the temperature of having set, judge that more whether cooking cavity temperature is at the appointed time later also greater than the temperature of setting.
The described stage of micro-wave oven being controlled according to judged result is, if judged result is at the appointed time later also greater than design temperature, then stops the operation of micro-wave oven; If judged result is to be not more than design temperature later at the appointed time, then allow micro-wave oven normally move.
Control method with cooling protection of microwave oven of temperature-detecting device of the present invention; can in time detect the temperature in the body of heater; compare judgement by temperature with temperature in the cooking cavity and setting; and according to the result who relatively judges; in time the operation of micro-wave oven is controlled; reach the purpose of accurately body of heater being cooled off, lowering the temperature; effectively control and avoided micro-wave oven because of improper factor after finishing the cool time of regulation, do not reach purpose cause that body of heater is carried out enough coolings, cooling to the destruction of micro-wave oven with to the threat of personal safety.
Description of drawings
Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of hot air convection type ripple stove;
Fig. 2 is the vertical view of the internal structure of Fig. 1;
Fig. 3 is the flow chart of cooling protection control method of the present invention.
Wherein:
10: cooking cavity assembly 11: front panel
12: cooking cavity 13: rear board
13a: intercommunicating pore 14: electric control chamber
14a: magnetron 14b: high-tension transformer
14c: blowing fan 14d: fan electromotor
20: shell 30: door
40: convection cell 41: heater
42: convection fan 43: motor
50: convection cell cover 50a: air suction inlet
The specific embodiment
Below, in conjunction with the accompanying drawings and specific embodiment, describe the control method with cooling protection of microwave oven of temperature-detecting device of the present invention in detail.
Control method with cooling protection of microwave oven of temperature-detecting device of the present invention; be that upside in the cooking cavity of as shown in Figure 1 and Figure 2 micro-wave oven is provided with temperature-detecting device or temperature detection part; as temp probe etc.; and it is connected with control circuit; control circuit can be learnt temperature in the cooking cavity by temperature-detecting device; and the temperature of learning judged, take concrete measure according to judged result to micro-wave oven control.
As shown in Figure 3, have the control method of the cooling protection of microwave oven of temperature-detecting device, include following steps and finish: S1. lowers the temperature to cooking cavity; S2. read cooking cavity temperature, promptly obtain temperature in the cooking cavity from being arranged on temperature-detecting device in the cooking cavity; S3. judge that cooking cavity temperature whether greater than the temperature of having set, if cooking cavity temperature is not more than the temperature of having set, then enters S6, if cooking cavity temperature then enters S4 greater than the temperature of having set; S4. judge that whether cooking cavity temperature is at the appointed time later also greater than the temperature of setting, if cooking cavity temperature is at the appointed time later also greater than the temperature of setting, illustrate that causing after finishing the cool time of regulation because of improper factor has appearred in micro-wave oven, the hot air convection of micro-wave oven does not reach body of heater is carried out enough cooling purpose, at this moment enter S5, if cooking cavity temperature is not more than the temperature of setting at the appointed time later, illustrate that the temperature in the cooking cavity of microwave oven has reached the purpose of cooling, then enters S6; S5. control circuit control micro-wave oven is out of service, and demonstrates the information that micro-wave oven does not cool off fully; S6. control circuit continuation control micro-wave oven normally moves.
Whether the stipulated time that present embodiment sets is to see after 30 minutes also greater than the temperature of setting.
Control method with cooling protection of microwave oven of temperature-detecting device of the present invention; in control program, increased the cooling protection program; in the cooking cavity upper inside temperature sensor is set; in the process that micro-wave oven is lowered the temperature; utilize the temperature sensor principle very responsive, micro-wave oven is protected variations in temperature.Program as shown in Figure 3, after the hot air convection of micro-wave oven finishes, the fan coolling cooking cavity, if the temperature of cooling temperature sensor feedback after 30 minutes is still greater than the temperature of setting continuously, show that then body of heater is not cooled fully, control circuit control micro-wave oven is out of service, thereby has avoided unsafe accident to occur.
For example, design temperature is decided to be 100 ℃, after the hot air convection of micro-wave oven finishes, the fan coolling cooking cavity, if cooling is after 30 minutes continuously, the temperature of temperature sensor feedback is still greater than 100 ℃, control circuit control micro-wave oven is out of service, and demonstrates the information that body of heater is not cooled fully.
Claims (3)
1. the control method with cooling protection of microwave oven of temperature-detecting device is characterized in that, includes as the next stage to finish: the stage that cooking cavity is lowered the temperature; Read the stage of cooking cavity temperature; To cooking the stage that cavity temperature is judged; The stage of micro-wave oven being controlled according to judged result.
2. the control method with cooling protection of microwave oven of temperature-detecting device according to claim 1, it is characterized in that, the described stage that cooking cavity temperature is judged is to judge in two steps, judge that at first whether cooking cavity temperature is greater than the temperature of having set, if be not more than the temperature of having set, micro-wave oven normally moves; If greater than the temperature that oneself sets, judge that more whether cooking cavity temperature is at the appointed time later also greater than the temperature of setting.
3. the control method with cooling protection of microwave oven of temperature-detecting device according to claim 1, it is characterized in that, the described stage of micro-wave oven being controlled according to judged result is, if judged result is at the appointed time later also greater than design temperature, then stop the operation of micro-wave oven; If judged result is to be not more than design temperature later at the appointed time, then allow micro-wave oven normally move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510014938 CN1924452A (en) | 2005-08-31 | 2005-08-31 | Control method for cooling protection of microwave oven with temperature checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510014938 CN1924452A (en) | 2005-08-31 | 2005-08-31 | Control method for cooling protection of microwave oven with temperature checking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1924452A true CN1924452A (en) | 2007-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510014938 Pending CN1924452A (en) | 2005-08-31 | 2005-08-31 | Control method for cooling protection of microwave oven with temperature checking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1924452A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013954A (en) * | 2017-04-15 | 2017-08-04 | 卫祥 | Multifunction microwave oven |
-
2005
- 2005-08-31 CN CN 200510014938 patent/CN1924452A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013954A (en) * | 2017-04-15 | 2017-08-04 | 卫祥 | Multifunction microwave oven |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |