CN1940388A

CN1940388A - Method for inspecting microwave oven door state

Info

Publication number: CN1940388A
Application number: CN 200510015276
Authority: CN
Inventors: 申昕
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2005-09-29
Filing date: 2005-09-29
Publication date: 2007-04-04

Abstract

There is disclosed a microwave oven door state detecting method, which includes the following steps: judging if the oven door is opened; setting according to the above judged result; judging the time of opening the oven door; sending out the alarm information according to the above judged time of opening the oven door; judging if the oven door is closed; deciding to alarm or not according to the above judged result. The inventive method can warn users to open or close oven doors via the door state attention program added in the main control program on the premise of not changing the integral structure of the microwave oven.

Description

Method for inspecting microwave oven door state

Technical field

The present invention relates to a kind of micro-wave oven.Particularly relate to and a kind ofly can avoid the micro-wave oven overlong time of opening the door, the waste energy influences the method for inspecting microwave oven door state of health.

Background technology

Usually, micro-wave oven is that (per second is about 2,450MHz) is heating source, by upsetting the molecules align of food, utilizes the electrical installation of the frictional heat heat food between the molecule with high frequency.

Such micro-wave oven is made of fuselage 10 that has possessed front panel 11, shell 12, rear board 13 and the electric control chamber that constitutes the cavity 20 of heating clamber and be provided with various electronic components as shown in Figure 1.

Preceding end housing that constitutes fuselage 10 front structures and the fire door 14 that can open or close cavity 20 inside are installed on the front panel 11.

Shell 12 is protected cavity 20 and electric control chamber with front panel 11 and rear board 13 in two sides that constitute fuselage 10 and end face.

Be provided with the magnetron 31 of launched microwave in the inside of electric control chamber; High-tension high-tension transformer 32 is provided for magnetron 31; Be used to cool off the Air Blast fan 33 of fuselage 10 inner various electrical equipments and the various parts such as fan electromotor 34 that drive Air Blast fan 33.

Fan electromotor 34 is fixedly mounted on the rear board 13, is provided with screen board 35 around Air Blast fan 33, guides flowing of air.

The lateral surface of cavity 20 is provided with the waveguide 36 of guiding microwave, and the front portion structure of magnetron 31 is arranged on the inside of waveguide 36.

For radiated microwaves, the side that it installs the cavity 20 of waveguide 36 communicates with the inner space of waveguide 36, and the medial surface of cavity 20 is provided with the guard shield that seals the part that communicates.The main effect of guard shield is to prevent that food slag or wet goods foreign matter from entering the inside of magnetron 31.

But seen in the market micro-wave oven does not have a condition prompting function.So as long as fire door is in open mode, the stove lantern festival is opened for a long time when micro-wave oven is not worked, till fire door was closed, the stove lamp was just closed, and caused the significant wastage of electric energy.Now developing by energy-saving mode makes chip operation close the micro-wave oven of stove lamp at the state of stagnating.

As shown in Figure 2, this battery saving mode specifically: the S1. micro-wave oven quits work, and after micro-wave oven was finished cooking work, master control program control micro-wave oven quit work; S2. judge whether door for microwave oven is in the state of opening,, then enter S3,, then enter S5 if door for microwave oven is to be in the state of opening if door for microwave oven is to be in closing state; S3. flag bit opens the door clearly; S4. with working mark position 1, allow relay work, and return master control program; S5. with the working mark position zero, do not allow relay work, and return master control program.

But said method does not have thoroughly to solve the long-time problem of opening of door of microwave oven yet.The long-time unlatching of fire door promptly influences the clean and tidy of environment, also can influence the cleaning in the body of heater.

Summary of the invention

Technical problem to be solved by this invention is, provides a kind of and can avoid the micro-wave oven overlong time of opening the door, and the waste energy influences the method for inspecting microwave oven door state of health.

The technical solution adopted in the present invention is: a kind of method for inspecting microwave oven door state is by finishing as the next stage: judge the stage whether fire door is opened; The stage of setting according to oven door opening whether result; The stage that the oven door opening time is judged; Send the stage of warning message according to the oven door opening time; Judge the stage whether fire door has closed; The stage that whether decision continues to report to the police according to judged result.

In the described stage of setting according to oven door opening whether result, include: do not open as if fire door, the flag bit that opens the door clearly, timing unit zero setting, and return; If oven door opening, the oven door opening time is carried out timing.

If described oven door opening is carried out timing to the oven door opening time, includes: put open the door flag bit and timing flag bit, and pick up counting.

The described stage of sending information according to the oven door opening time, include: if the oven door opening time is above official hour, then clear timing unit also returns, if the oven door opening time exceeds schedule time, then reports to the police and puts the timing overlong time flag bit that opens the door.

In the described stage that whether decision continues to report to the police according to judged result, include: if fire door closes, then clear timing unit also returns; If fire door does not close, then continue to send warning message, its warning message is that buzzer rings.

Described returning is meant and returns master control program.

Method for inspecting microwave oven door state of the present invention, do not changing under the integrally-built prerequisite of micro-wave oven, just by changing the control program of software, promptly, in master control program, increased the program of door condition prompting, in time close door for microwave oven by this program prompts user, open the waste of energy that causes thereby can reduce because door for microwave oven is long-time, and the deficiency that influences the micro-wave oven health.

Description of drawings

Fig. 1 is the whole decomposition texture schematic diagram of micro-wave oven;

Fig. 2 is the schematic flow sheet of prior art to fire door control;

Fig. 3 is the flow chart of method for inspecting microwave oven door state of the present invention.

Wherein:

13: rear board 10: fuselage

11: front panel 12: shell

14: fire door 20: cavity

31: magnetron 32: high-tension transformer

33: Air Blast fan 34: fan electromotor

35: screen board 36: waveguide

The specific embodiment

Below, describe method for inspecting microwave oven door state of the present invention in conjunction with the accompanying drawings and embodiments in detail.

As shown in Figure 3, be to be finished by following steps: the S11. micro-wave oven quits work, and after micro-wave oven was finished cooking work, master control program control micro-wave oven quit work; S12. judge whether door for microwave oven is in the state of opening,, then enter S13,, then enter S14 if door for microwave oven is to be in the state of opening if door for microwave oven is to be in closing state; S13. the flag bit that opens the door clearly, timing unit zero setting, and return master control program; S14. put the flag bit that opens the door, put the timing flag bit; S15. pick up counting, promptly begin the time that accumulative total is opened the door; S16. whether judge the time of opening the door greater than the time of setting, judge according to the time of opening the door of accumulative total, if the time of opening the door less than the time of setting, then enter S17, if the time of opening the door greater than the time of setting, then enters S18; S17. clear timing unit, and return master control program; S18. report to the police, promptly report to the police by the buzzer that is connected with control circuit; S19. put the timing overlong time sign that opens the door; S20. judge whether fire door closes, if fire door is closed, then enter S21, fire door is not also closed, and then returns S18 and continues to report to the police; S21. clear timing unit, and return master control program.

The door condition prompting function that the present invention increases mainly is to play if open the door overlong time, reminds the user to close the effect of fire door.When the control circuit of micro-wave oven detects door and is in opening, it is luminous that corresponding level signal of single-chip microcomputer output drives gate light, control circuit picks up counting simultaneously, surpass the time of setting when the timing unit cumulative time, do not shut yet as 3 minutes back doors, then think the overlong time of opening the door, control circuit output this moment drives buzzer and sends the interruption chimes of doom.Closing reports to the police behind the door finishes the timing unit zero clearing.As door within setting-up time as 1 minute in fire door shut, the stove lamp goes out, buzzer is not reported to the police.

Claims

1. a method for inspecting microwave oven door state is characterized in that, is by finishing as the next stage: judge the stage whether fire door is opened; The stage of setting according to oven door opening whether result; The stage that the oven door opening time is judged; Send the stage of warning message according to the oven door opening time; Judge the stage whether fire door has closed; The stage that whether decision continues to report to the police according to judged result.

2. method for inspecting microwave oven door state according to claim 1 is characterized in that, in the described stage of setting according to oven door opening whether result, includes: do not open as if fire door, and the flag bit that opens the door clearly, timing unit zero setting, and return; If oven door opening, the oven door opening time is carried out timing.

3. method for inspecting microwave oven door state according to claim 2 is characterized in that, if described oven door opening is carried out timing to the oven door opening time, includes: put open the door flag bit and timing flag bit, and pick up counting.

4. method for inspecting microwave oven door state according to claim 1, it is characterized in that, the described stage of sending information according to the oven door opening time, include: if the oven door opening time is above official hour, then clear timing unit also returns, if the oven door opening time exceeds schedule time, then report to the police and put the timing overlong time flag bit that opens the door.

5. method for inspecting microwave oven door state according to claim 1 is characterized in that, in the described stage that whether decision continues to report to the police according to judged result, includes: if fire door closes, then clear timing unit also returns; If fire door does not close, then continue to send warning message.

6. method for inspecting microwave oven door state according to claim 1 is characterized in that, described warning message is that buzzer rings.

7. method for inspecting microwave oven door state according to claim 1 is characterized in that, described returning is meant and returns master control program.