CN101658391B - Door-control device of electric oven and control method thereof - Google Patents
Door-control device of electric oven and control method thereof Download PDFInfo
- Publication number
- CN101658391B CN101658391B CN 200810054381 CN200810054381A CN101658391B CN 101658391 B CN101658391 B CN 101658391B CN 200810054381 CN200810054381 CN 200810054381 CN 200810054381 A CN200810054381 A CN 200810054381A CN 101658391 B CN101658391 B CN 101658391B
- Authority
- CN
- China
- Prior art keywords
- door
- oven
- control
- temperature
- signal
- 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
Images
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention relates to a door-control device of an electric oven and a control method thereof, which adds the door safety control function for ensuring the stability of an oven to the electric oven with the pyrolysis function. The electric oven is provided with a top combustor, an oven with an oven door, and a drawer, and is characterized by also comprising a user instruction input part for inputting requirement instructions of a user, a door-opening detecting part for detecting the opening state of the oven door, a temperature detecting part for detecting the inner temperature of the oven,a control part for outputting a control signal according to the instructions inputted by the user instruction input part and a door safety control part for inputting a detection signal of the door open detecting part, a detection signal of the temperature detecting part and the control signal of the control part and controlling the opening state of the oven door.
Description
Technical field
The present invention relates to the baking box cooking stove, particularly relate to a kind of controlling device for doors and control method thereof of in the electric oven with pyrolysis function, setting up be used to the electric oven of the door locking system of guaranteeing baking box stability.
Background technology
In general, baking box cooking stove (Oven range) by will be behind the baking material seal baking box by drying mode heating baking material, and mainly be formed at the top of baking box and the baking material is positioned over above directly the cooking stove of heating baking mutually combine and form integrated kitchen utensils.According to the kind of thermal source, the baking box cooking stove can be divided into gas baking box cooking stove and electric oven.
Wherein, gas baking box cooking stove mainly acts as a fuel with gas, and the mode that adopts a plurality of burners of igniting (Burner) to heat.Electric oven is different with gas baking box cooking stove, and it utilizes electric energy, and the mode that adopts ceramic heater (Ceramic Heater), sheathed heater (Sheathe Heater), halogen heater multiple heaters such as (Halogen Heater) to heat.
Electric oven can heat simultaneously to surface and the inside of material, compares with gas baking box cooking stove, and it has baking speed faster and the thermal efficiency.And owing to the use electric energy has higher stability, so electric oven use in the family also presents the trend that increases gradually.
Below, with reference to the accompanying drawings, general electric oven is described.
Fig. 1 is the stereogram of general electric oven.
As shown in Figure 1, in the general electric oven 1 one in conjunction with including: be used for placing the top burner (top burner) 10 that the container that fills food carries out baking; Rearward end in top burner 10 connects upward, and is used for regulating the control part 20 of electric oven 1 operation; Be formed at the downside of top burner 10, and the baking box 30 by thermal convection current effect baking food; Be formed at the downside of baking box 30, and have the drawer (Drawer) 40 of simple baking function or storage function.
Wherein, top burner 10 will form the topmost of electric oven 1, be formed with a plurality of electric burner 12 that far infra-red heater or halogen heater are installed on the top of top burner 10.
In addition, on top burner 10, be formed with the glass-ceramic 14 of the far infrared that produces in the transmissive electricity burner 12, and, it will cover top burner 10 that electric burner 12 forms above.
Rear end in top burner 10 is formed with control part 20 upward, and control part 20 is used for regulating the operation of electric oven 1.A side is formed with display part 22 in the front of control part 20, and display part 22 is for the mode of operation that shows electric oven 1 and baking time etc.Also be provided with a plurality of operation knobs 24 in the side of display part 22, the user will regulate the operation of electric oven 1 by a plurality of operation knobs 24.
In addition, be formed with baking box 30 at the downside of top burner 10, baking box 30 be with electricity as thermal source, and utilize the sealed space of the heat baking food that produces in a plurality of heaters.The front of baking box 30 will optionally be covered by oven door 50.
Be provided with in the inside of baking box 30 for a plurality of heaters of heat food with the convection fan (convection fan) of hot-air forced convertion, they will help food is toasted uniformly.
In addition, be formed with handle 52 in the front upper of oven door 50, handle 52 can make the user control easily, with the convenient oven door 50 that opens and closes.Simultaneously, in order to observe the inside of baking box 30, be provided with the front perspective window of being made by the heat resistant glass that connects oven door 50 54.
And, be formed at baking box 30 below drawer 40 in also can be provided be used to the food that heats baking, or carry out the other heater of simple baking operation.It is configured for simply storing the required apparatus of baking or the drawer form of food, and can pull out/put in the bottom of baking box 30.
In the electric oven of the prior art that structure as mentioned above constitutes, control part 20 will detect the lock-out state of oven door 50 and the internal temperature of baking box 30, and, only control oven door 50 and reach lock-out state automatically in the zone that presets more than the temperature.
Therefore, in the door locked control system of the electric oven of prior art, in high-temperature area (350 ℃), when exporting signal for the driving gate lock function owing to the functional disturbance of control part 20, the situation that door is opened in the baking process may take place, and, security incident such as may cause that the user is burnt thus.
The content of invention
For the problem that the door locked control system that solves electric oven in the above-mentioned prior art exists, the objective of the invention is to the phenomenon that prevents that in advance door is opened in the baking process, and make electric oven carry out the baking operation with stable status more.
In order to achieve the above object, the controlling device for doors of electric oven of the present invention, the baking box and the drawer that are provided with top burner in the related electric oven and have oven door comprise following several sections:
The user instruction input part that is used for the instruction of input customer requirements;
Door open detection portion for detection of the oven door opening;
Temperature detecting part for detection of the baking box internal temperature;
Export the control part of control signal according to the instruction of user instruction input part input;
According to the detection signal of input gate open detection portion, the detection signal of temperature detecting part and the control signal of control part, the door security control portion that the opening of oven door is controlled;
Include in the door security control portion:
To compare by the detected temperature of temperature detecting part and preset reference temperature, and export the temperature comparing section of its comparative result;
Be used for the comparative result of input temp comparing section and the detection signal of door open detection portion, and the 1st calculating part that calculates;
Be used for the result of calculation of input the 1st calculating part and the control signal of control part, and the 2nd calculating part that calculates;
The 1st calculating part is made of " same or door ";
The 2nd calculating part is made of " with door ".
When detected temperature value in the temperature detecting part is the fiducial temperature that presets when above, the temperature comparing section will be exported high flat signal, when the detected temperature value of temperature detecting part is the fiducial temperature that presets when following, then will export low flat signal.
When oven door is in the lock state, door open detection portion will export low flat signal, when oven door is in opening, then will export high flat signal.
The control method of door of electric oven of the present invention includes following several steps:
Detect the internal temperature of baking box;
Detect the lock-out state of oven door;
According to the internal temperature of baking box, the lock-out state of oven door and the control signal of control part, oven door is controlled.
In the step of control oven door, when the internal temperature of oven door is more than the design temperature that presets, and oven door makes oven door keep lock-out state when being in the lock state, and is irrelevant with the control signal of control part.
According to aforesaid the present invention, will be by the internal temperature that compares baking box, the lock-out state of oven door and the tripartite noodles spare of control signal of control part, the open/close state of control oven door, thereby the maloperation that can prevent the functional disturbance owing to control part to cause.
And, by the open/close state of control oven door, can improve the stability of product of the present invention.
Description of drawings
Fig. 1 is the stereogram of general electric oven;
Fig. 2 is the block diagram of the controlling device for doors of electric oven of the present invention;
Fig. 3 is the detailed circuit diagram of door security control portion among Fig. 2;
Fig. 4 is the control method flow chart of electric oven of the present invention.
100: user instruction input part 110: temperature detecting part
120: control part 130: door open detection portion
140: door security control portion 141: temperature comparing section
143: the 2 calculating parts of 142: the 1 calculating parts
150: load driving part 160: display part
170: oven door.
The specific embodiment
Below, be specifically described with reference to controlling device for doors and the control method thereof of accompanying drawing to electric oven of the present invention.
Fig. 2 is the block diagram of the controlling device for doors of electric oven of the present invention, and Fig. 3 is the circuit diagram of door security control portion among Fig. 2, and Fig. 4 is the flow chart of electric oven control method of the present invention.
As shown in Figure 2, the controlling device for doors of the electric oven among the present invention includes following several sections: the user instruction input part 100 that is used for input user's requirement instruction; Door open detection portion 130 for detection of the oven door opening; Temperature detecting part 110 for detection of the baking box internal temperature; Export the control part 120 of control signal according to the instruction of user instruction input part 100 inputs; According to detection signal, the detection signal of temperature detecting part 110 and the control signal of control part 120 of door open detection portion 130 of input, the security control portion 140 that the open operation of oven door 170 is controlled; The load driving part 150 that drives according to the control signal of control part 120; According to the control signal of control part 120 and the display part 160 of display menu and mode of operation etc.
Wherein, as shown in Figure 3, include in the door security control portion 140: be used for output by the detected temperatures of temperature detecting part 110 detected baking box inside and preset the temperature comparing section 141 of the comparative result between the temperature; The testing result of input temp comparing section 141 and door open detection portion 130, the 1st calculating part 142 that calculates; Import the control signal of calculated value and the control part 120 of the 1st calculating part 142, the 2nd calculating part 143 that calculates.
And the 1st calculating part 142 is made of equivalence element, and the 2nd calculating part 143 is made of AND gate (AND Gate).
Below, the operation of the controlling device for doors of the electric oven among the present invention that will constitute structure as mentioned above describes.
At first, open (Power on) instruction by 100 inputs of user instruction input part, when selecting required baking pattern by the user, control part 120 will be exported corresponding control signal, and load driving part 150 will drive load according to corresponding control signal.
And door security control portion 140 will control the opening of oven door 170 according to the detected temperatures of temperature detecting part 110, the door opening of door open detection portion 130 and the control signal of control part 120.
Namely, when being that the fiducial temperature that presets is when above by temperature detecting part 110 detected detected temperatures, temperature comparing section 141 will be exported Gao Ping (High) signal, when detected detected temperatures is that the fiducial temperature that presets is when following, then flat (Low) signal is hanged down in output, wherein, the fiducial temperature that presets is 320 ℃.
And when oven door 170 is in the lock state, door open detection portion 130 will export low flat (Low) signal, when being in opening, then export Gao Ping (High) signal.
Thus, when the output signal of temperature comparing section 141 is Gao Ping (High) signal, and the testing result of door open detection portion 130 is when being Gao Ping (High) signal, and the 1st calculating part 142 will be exported Gao Ping (High) signal.
That is, only the output at the 1st calculating part 142 and control part 120 is under the situation of Gao Ping (High) signal simultaneously, and the 2nd calculating part 143 will be exported Gao Ping (High) signal.
As mentioned above, when the temperature in baking box is the high-temperature area that presets more than the temperature, temperature comparing section 141 will be exported Gao Ping (High) signal, and will export low flat (Low) signal when oven door 170 is in the lock state, and 142 of the 1st calculating parts will be exported low flat (Low) signal.
Below, with reference to table 1, the result of calculation based on the 1st calculating part 142 of the testing result of temperature comparing section 141 and door open detection portion 130 is described.
Table 1
| Temperature comparing section output (A) | Door open detection portion's output (B) | The 1st calculating part output (Y) |
| L | L | H |
| H | L | L |
| L | H | L |
| H | H | H |
Below, with reference to table 2, the result of calculation of the 2nd calculating part 143 is described.
Table 2
| The output of the 1st calculating part (Y) | The output of control part (X) | The output of the 2nd calculating part (S) |
| L | L | L |
| L | H | L |
| H | L | L |
| H | H | H |
Thus, when low flat (Low) signal of the 1st calculating part 142 output, the 2nd calculating part 143 will export low flat (Low) signal, have nothing to do with the control signal of control part 120, thereby will keep the lock-out state of oven door 170, and can prevent locked door condition to be disengaged.
Below, with reference to the accompanying drawings 4, the control method of the electric oven among the present invention of said structure is described.At first, detect the internal temperature S101～S102 of baking box.
Judge whether detected baking box internal temperature is the above S103 of temperature that presets
Judge S103 in the result, when being the temperature that presets when above, temperature comparing section 141 will be exported Gao Ping (High) signal S104.
Then, whether door open detection portion 130 decision gates are in the lock state S105.
Judge S105 in the result, when door is in the lock state, door open detection portion 130 will export low flat (Low) signal S106.
And, judge S105 in the result, when door is in opening, door open detection portion 130 will export Gao Ping (High) signal S107.
When the comparative result of temperature comparing section 141 is Gao Ping (High) signal, and the testing result of door open detection portion 130 is when being in opening for door, and the 1st calculating part 142 will be exported Gao Ping (High) signal S108.
In addition, judge whether export Gao Ping (High) signal S109 in the control part 120.
Judge S109 in the result, when control part 120 output Gao Ping (High) signals, the 2nd calculating part 143 will be exported Gao Ping (High) signal S110.
In addition, judge S103 in the result, when the internal temperature of detected baking box is the design temperature that presets when following, temperature comparing section 141 will be exported low flat (Low) signal S111.
In addition, whether be in the lock state S112 by door open detection portion 130 decision gates.
Judge S112 in the result, when door is in the lock state, door open detection portion 130 will export low flat (Low) signal S113.
And, judge S112 in the result, when door is in opening, door open detection portion 130 will export Gao Ping (High) signal S114.
That is, be below the design temperature that presets when temperature, and door is when being in the lock state, the 1st calculating part 142 will be exported Gao Ping (High) signal, and enter into step S108.
In addition, when temperature for presetting below the temperature, and door is when being in opening, the 1st calculating part 142 will export low (Low) signal S115 of putting down.
In addition, when low flat (Low) signal of the 1st calculating part 142 output, the 2nd calculating part 143 will export low flat (Low) signal S117, have nothing to do with the control signal of control part 120 outputs.
As mentioned above, in the door security control device and control method of electric oven of the present invention, will be according to the lock-out state of baking box temperature inside and door, by lock-out state and the open operation of door security control portion 140 control maintenance doors 170, the control signal of control part 120 is irrelevant.
Claims (5)
1. the controlling device for doors of an electric oven, the baking box and the drawer that are provided with top burner in the related electric oven and have oven door is characterized in that, comprise following several sections:
The user instruction input part that is used for the instruction of input customer requirements;
Door open detection portion for detection of the oven door opening;
Temperature detecting part for detection of the baking box internal temperature;
Export the control part of control signal according to the instruction of user instruction input part input;
According to the detection signal of input gate open detection portion, the detection signal of temperature detecting part and the control signal of control part, the door security control portion that the opening of oven door is controlled;
Include in the door security control portion:
To compare by the detected temperature of temperature detecting part and preset reference temperature, and export the temperature comparing section of its comparative result;
Be used for the comparative result of input temp comparing section and the detection signal of door open detection portion, and the 1st calculating part that calculates;
Be used for the result of calculation of input the 1st calculating part and the control signal of control part, and the 2nd calculating part that calculates;
The 1st calculating part is made of " same or door ";
The 2nd calculating part is made of " with door ".
2. the controlling device for doors of electric oven according to claim 1 is characterized in that:
When detected temperature value in the temperature detecting part is the fiducial temperature that presets when above, the temperature comparing section will be exported high flat signal, when the detected temperature value of temperature detecting part is the fiducial temperature that presets when following, then will export low flat signal.
3. the controlling device for doors of electric oven according to claim 1 is characterized in that:
When oven door is in the lock state, door open detection portion will export low flat signal, when oven door is in opening, then will export high flat signal.
4. a controlling device for doors that utilizes the described electric oven of claim 1 carries out the control method of door of electric oven, it is characterized in that, includes following several steps:
Detect the internal temperature of baking box;
Detect the opening of oven door;
According to the internal temperature of baking box, the lock-out state of oven door and the control signal of control part, oven door is controlled.
5. the control method of door of electric oven according to claim 4, it is characterized in that: in the step of control oven door, when the internal temperature of oven door is more than the design temperature that presets, and when oven door is in the lock state, make oven door keep lock-out state, irrelevant with the control signal of control part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810054381 CN101658391B (en) | 2008-08-29 | 2008-08-29 | Door-control device of electric oven and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810054381 CN101658391B (en) | 2008-08-29 | 2008-08-29 | Door-control device of electric oven and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101658391A CN101658391A (en) | 2010-03-03 |
| CN101658391B true CN101658391B (en) | 2013-09-25 |
Family
ID=41786809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810054381 Expired - Fee Related CN101658391B (en) | 2008-08-29 | 2008-08-29 | Door-control device of electric oven and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101658391B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383183B (en) * | 2012-05-04 | 2015-05-20 | 矽品科技（苏州）有限公司 | Oven with temperature-controlled opening function and control method of oven |
| CN109577756B (en) * | 2018-12-20 | 2020-08-07 | 珠海格力电器股份有限公司 | Door lock control method, electric device door body control method, door lock and electric device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1188212A (en) * | 1997-01-11 | 1998-07-22 | 三星电子株式会社 | Safety system for microwave oven with heater |
| CN1508479A (en) * | 2002-12-18 | 2004-06-30 | Lg������ʽ���� | Safety device of electric roaster |
| JP2004198077A (en) * | 2002-12-20 | 2004-07-15 | Matsushita Electric Ind Co Ltd | Heating cooker |
-
2008
- 2008-08-29 CN CN 200810054381 patent/CN101658391B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1188212A (en) * | 1997-01-11 | 1998-07-22 | 三星电子株式会社 | Safety system for microwave oven with heater |
| CN1508479A (en) * | 2002-12-18 | 2004-06-30 | Lg������ʽ���� | Safety device of electric roaster |
| JP2004198077A (en) * | 2002-12-20 | 2004-07-15 | Matsushita Electric Ind Co Ltd | Heating cooker |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2004-229724A 2004.08.19 |
| JP特开2008-080070A 2008.04.10 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101658391A (en) | 2010-03-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7420140B2 (en) | Method and apparatus for controlling the energization of a cooking appliance | |
| US7378617B1 (en) | Heating systems and methods for a cooking appliance | |
| US20060065263A1 (en) | Programmable cooking appliance | |
| US9562694B2 (en) | Double oven range appliance and a gas burner and floor assembly for an oven appliance | |
| US9506657B2 (en) | Oven preheat boost using cooktop lockout | |
| WO2022002028A1 (en) | Oven appliance for high heat cooking, and method | |
| US7755006B2 (en) | Heating systems and methods for a cooking appliance | |
| KR20060091857A (en) | Method and apparatus for controlling of (a) electronic oven range | |
| CN101658391B (en) | Door-control device of electric oven and control method thereof | |
| US9927128B2 (en) | Method for operating an oven appliance and a control system for an oven appliance | |
| US9677771B2 (en) | Door lock logic | |
| US9731333B2 (en) | Self-cleaning top burner for a stove | |
| US10302309B2 (en) | Oven appliance having a broiler assembly | |
| KR20110007847A (en) | Cooking control method of a steam oven of a convetion type | |
| KR100935330B1 (en) | Method and apparatus for controlling door of an oven range | |
| US20220146099A1 (en) | Oven appliance with bottom broil element | |
| CN205072704U (en) | Cooking device | |
| JPH09271447A (en) | Oven | |
| KR20110054976A (en) | Oven rage and method thereof | |
| KR101516815B1 (en) | Method and appratus for contorlling a temperature warm drawer of an oven range | |
| CN205215039U (en) | Oily oven is not had in complete intelligent thermal cycle | |
| KR20070066358A (en) | Method for controlling the heater for a warming drawer | |
| US12007121B2 (en) | Safety control logic for a multi-pane door assembly of an oven appliance | |
| KR102067272B1 (en) | Cooking appliance | |
| KR100938204B1 (en) | Method and apparatus for controlling temperature of an oven range |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20180829 |