CN1704676A - Brightness control device for microwave oven display part and control method therefor - Google Patents
Brightness control device for microwave oven display part and control method therefor Download PDFInfo
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- CN1704676A CN1704676A CN 200410019440 CN200410019440A CN1704676A CN 1704676 A CN1704676 A CN 1704676A CN 200410019440 CN200410019440 CN 200410019440 CN 200410019440 A CN200410019440 A CN 200410019440A CN 1704676 A CN1704676 A CN 1704676A
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Abstract
This invention provides a brightness controlling device of microwave oven, which comprises controlling part, press key input part and storage part; wherein the press key input part makes several brightness level of the display part setting their time, the storage part will storage the set time, the controlling part used for comparing the present time and the set time stored in the storage part, making the brightness transmitting to the present time brightness level automatically. The invention also provides a display part brightness controlling method of the microwave oven. By the direct operating order, the brightness of the display part can be adjusted automatically according to time; meanwhile, it can adjust the display brightness according to the set time.
Description
Technical field
The invention relates to the display part brightness controlling device of micro-wave oven and the invention of method thereof, the particularly relevant display part brightness controlling device and the method thereof of micro-wave oven that can regulate the display part brightness of micro-wave oven according to setting-up time automatically.
Background technology
In recent years, be used for the cookware of cooking food in the family, be widely used as products such as electric oven, micro-wave oven, natural gas baking box, gas burners.
Here, electric oven is the cookware of cooking as main heating source with heater.Micro-wave oven is to come the culinary art object of heating cooking chamber interior with the microwave that produces in the magnetron as main heating source, thus the cookware that food is cooked.
Recently,, can provide various heated condition, develop the inner micro-wave oven that is provided with heater for when the cooking food.
The micro-wave oven that aforesaid inside is provided with heater has two main heating sources.That is heat that, in heater, produces and the microwave that in magnetron, produces.Therefore, micro-wave oven can selectively utilize two kinds of heating sources to come the heating cooking object, thereby its unique advantage is arranged.
The formation of general micro-wave oven is described below, and as shown in Figure 1, the inside center that constitutes the cavity mechanism 1 of micro-wave oven basic framework is formed with the heating clamber 2 that can hold the heating target thing.During running of microwave oven, generate microwave in the heating clamber 2, thereby can heat the food that is contained in the heating clamber 2, the side of heating clamber 2 is formed with electric elements control room 10 in abutting connection with the position.Be provided with in the electric elements control room 10 and produce the required parts such as electric elements of microwave.Heating clamber 2 is after food to be heated is contained in inside, comes the space of heat food with the microwave of supplying with.This space (being heating clamber 2) is to be opened and closed by 4 at heating clamber door.
In addition, a side of heating clamber 2 is provided with electric elements control room 10, is provided with in the electric elements control room 10 to produce the required parts such as electric elements of microwave, and electric elements control room 10 is hidden by shell 6.The high voltage conversion portion 14 that the inside in electric elements control room 10 is provided with the magnetron 12 that generates microwave, draw for magnetron 12 adds high pressure, can cool off electric elements and can cause parts such as blowing fan 16 via the air-flow of heating clamber 2 inside.
Front one side of heating clamber door 4 is provided with the press key input device 5 that can select/import the desirable culinary art pattern of user and can shows cooks the display unit 7 of carrying out state.
Be applicable to that display unit in the cookwares such as above-mentioned electric oven, micro-wave oven generally all uses LCD (liquid crystal display: Liquid-Crystal-Display), and can regulate the brightness of LCD according to user's operation.
Below only the LCD brilliance control of the cookware of conventional art is constituted and be described as follows, as shown in Figure 2, LCD brilliance control mechanism is by LCD module 50, for background light (Back-Light) (omitting among the figure) brightness of regulating LCD module 50, make the user import the press key input section 20 of concrete operational order, if the user is by press key input section 20 input brightness regulation orders, just interim locking gray scale, thereby the control part 30 of the brightness of control background light, according to the control signal of control part 30, the brightness regulation portion 40 that regulates the background light brightness of LCD module 50 constitutes.
If the background light gray scale of hypothesis LCD is provided with 3 grades, that is, and ' bright ' (the 1st rank), ' common ' (the 2nd rank), ' secretly ' (3rd level is other).
Under the initialization default conditions of system, if the user imports the initial luminance regulating commands by press key input section 20, control part 30 just makes the background light brightness of LCD module 50 be locked in the 1st rank (' bright ').Afterwards, if the user imports the brightness regulation order once more by press key input section 20, the background light brightness of LCD module 50 will be interim is locked in the 2nd rank (' common ') successively, and 3rd level is (' secretly ') not ....
Promptly, if the user imports the brightness regulation order repeatedly by press key input section 20, control part 30 just makes being locked in successively of background light brightness order of LCD module 50: the 1st rank (' bright ') → the 2nd rank (' common ') → 3rd level not (' secretly ') → the 1st rank (' bright ') → the 2nd rank (' common ') → 3rd level not (' secretly ') → the 1st rank (' bright ') → the 2nd rank (' common ') → .... (the continuous circulation).
Control part 30 in a single day selected a certain gray scales will be sent to control signal in the brightness regulation portion 40.At this moment, brightness regulation portion 40 regulates the background light brightness of LCD module 50 according to the control signal of above-mentioned control part 30.
LCD brightness control method in the past is described as follows.As shown in Figure 3, draw and add main power source, make system obtain initialization after, control part judges that the user is whether by press key input section 20 input initial luminance regulating commands (S1).
Above-mentioned judged result (S1) is judged the user and has been imported the brightness regulation order by press key input section 20, will be locked in LCD brightness on the rank 1 (bright), thereby the background light brightness regulation of LCD module 50 be ' bright ' (S2).
In addition, the background light brightness of LCD module 50 is carried out under the state of rank 1 (bright), the user imports brightness regulation order (S3) once more by press key input section 20, background light brightness will be interim be locked in the 2nd rank (common), thereby the background light brightness regulation of LCD module 50 be ' common ' (S4).
In like manner, the background light brightness of above-mentioned LCD module 50 is carried out under the state of rank 2 (common), the user imports brightness regulation order (S5) once more by press key input section 20, background light brightness will be interim be locked in 3rd level not (secretly), thereby the background light brightness regulation of LCD module 50 be ' secretly ' (S6).
The background light brightness of above-mentioned LCD module 50 is carried out under rank 3 state of (secretly), the user imports the brightness regulation order once more by press key input section 20, background light brightness will be interim be locked in the 1st rank (bright), thereby be the background light brightness regulation of LCD module 50 ' bright '.
In sum, LCD background light brightness controlling device in the past is the brightness regulation order according to the user, interim locking LCD background light gray scale, thus regulate the brightness of LCD background light.
But the mode that adopts according to the display part brightness control method of the cookware of conventional art is that the user directly imports the manual control mode that display part brightness is controlled in the brightness regulation order.Therefore, owing to adopt manual control mode, make systematic function descend to some extent.
And when surrounding environment is in a certain luminance state following time, the user needs the brightness of the corresponding LCD of adjusting background light, and the user can see the display content displayed clearly.Therefore, make the user all will regulate background light brightness repeatedly at every turn, thereby brought the inconvenience of using to the user.
Summary of the invention
In order to solve the above problems, the purpose of this invention is to provide a kind of display part brightness controlling device and the method thereof of micro-wave oven that can regulate the display part brightness of micro-wave oven according to setting-up time automatically.
In order to realize above-mentioned purpose, the technical solution adopted in the present invention provides a kind of display part brightness controlling device of micro-wave oven, be included in magnetron or heater in the micro-wave oven as heating source, be provided with interconnective control part, for the display part of state and the press key input section of user's input are carried out in the culinary art of microwave oven, wherein: be connected to press key input section and storage part with control part, press key input section is the press key input section of setting-up time separately that makes a plurality of gray scales of display part, and storage part is the storage part of the setting-up time of gray scale separately imported by press key input section; Described control part is the comparison current time and is stored in the setting-up time of gray scale separately of described storage part, makes the brightness of display part be transformed into control part corresponding to the gray scale of current time automatically.
A kind of display part brightness control method of micro-wave oven also is provided, and wherein: be provided with in the micro-wave oven of display part in order to show culinary art to carry out state, the display part brightness control method comprises:
The user imports the stage S10 of setting-up time separately of a plurality of gray scales of display part;
The stage S20 of the storage setting-up time of gray scale separately that the user imported;
The stage S30 of the setting-up time of gray scale separately that compares the current time and stored;
Make the brightness of display part be transformed into stage S40 automatically corresponding to the gray scale of current time.
In the method, the brightness degree of the display part of setting is to be made of the 1st rank, the 2nd rank, the other institute of 3rd level, and the user is to comprise following process to the stage of the setting-up time separately of a plurality of gray scales of input display part:
Input is locked in the brightness of display part the stage S50 of the 1st grade of other the 1st setting-up time;
Input is locked in the brightness of display part the stage S70 of the 2nd grade of other the 2nd setting-up time;
Input is locked in the brightness of display part the stage S80 of other the 3rd setting-up time of 3rd level.
The automatic brightness adjustment of described display part to corresponding at present the stage of the gray scale of time includes:
Current time is during corresponding to the 1st setting-up time, 1 grade of other stage of the brightness regulation to the of display part S60;
Current time during corresponding to the 2nd setting-up time, in 2 grades of other stages of the brightness regulation to the of display part;
Current time is during corresponding to the 3rd setting-up time, the brightness regulation of display part to other stage of 3rd level.
Effect of the present invention is in the present invention, is provided with user's brightness regulation direct control order, and its display part brightness also can be adjusted automatically by the time.That is, the brightness of micro-wave oven display part is according to the predefined working time of gray scale separately of user, and is adjusted automatically on a time period.Thereby, made things convenient for use, simultaneously, the display part brightness of micro-wave oven can be regulated automatically, thereby the performance of product can be improved according to setting-up time.
Description of drawings
Fig. 1 is the exploded perspective view of the internal structure of general micro-wave oven;
Fig. 2 is the block diagram of display part brilliance control structure of the micro-wave oven of conventional art;
Fig. 3 is the flow chart of display part brightness control method of the micro-wave oven of conventional art;
Fig. 4 is the block diagram of the display part brightness controlling device structure of micro-wave oven of the present invention;
Fig. 5 is the flow chart of the display part brightness control method of micro-wave oven of the present invention.
Among the figure:
100: press key input section 200: storage part
300: the 400:LCD of brightness regulation portion module
500: control part
The specific embodiment
Below, with reference to the drawing that provides, to being described in detail according to the display part brightness controlling device of micro-wave oven of the present invention and the specific embodiment of method thereof.
Fig. 4 is the block diagram according to the display part brightness controlling device formation of micro-wave oven of the present invention.
Concrete course of action according to display part brightness controlling device that illustrates of the present invention and method thereof is described as follows.
As shown in the figure, according to the display part brightness controlling device of micro-wave oven of the present invention is by the LCD module 400 that is provided with for state is carried out in the culinary art of microwave oven, make the user import the press key input section 100 of setting-up time separately of a plurality of gray scales of LCD module 400, the storage part 200 of the setting-up time of gray scale separately that storage is imported by press key input section 100, compare current time and the setting-up time of gray scale separately that is stored in storage part 200, thereby background light (omitting among the figure) brightness that makes LCD module 400 is transformed into the control part 500 corresponding to the gray scale of current time automatically, according to the control signal of control part 500, the brightness regulation portion 300 that regulates background light (omitting among the figure) brightness of LCD module 400 constitutes.
In the middle of present embodiment, the background light gray scale (level) that LCD module (module) 400 is set is provided with 3 grades, that is, and and ' bright ' (the 1st rank), ' common ' (the 2nd rank), ' secretly ' (3rd level is other).
Then, above-mentioned brightness regulation portion 300 be by: toward the background light voltage (V of LCD module 400 outputs corresponding to the 1st rank (bright)
BL) the 1st regulating loop, toward the background light voltage (V of LCD module 400 output corresponding to the 2nd rank (common)
BL) the 2nd regulating loop, toward LCD module 400 output corresponding to the not other background light voltage (V of (secretly) of 3rd level
BL) the 3rd regulating loop constitute.
Here, the 1st regulating loop is connected with the 1st lead-out terminal (P1) of control part 500.And, the 1st regulating loop be by: transistor Q10, Q20, resistance R 10 are constituted.In addition, the 2nd regulating loop is connected with the 2nd lead-out terminal (P2) of control part 500.And, the 2nd regulating loop be by: transistor Q12, Q22, resistance R 12 are constituted.In addition, the 3rd regulating loop is connected with the 3rd lead-out terminal (P3) of control part 500.And, the 3rd regulating loop be by: transistor Q14, Q24, resistance R 14 are constituted.
Transistor Q10, Q12, Q14 are npn type pipe, and transistor Q20, Q22, Q24 constitute pnp type pipe.And the value of resistance R 10, R12, R14 is different, and the gray scale of being exported is high more, and its resistance value is just more little.
For instance, resistance R 10, R12, the value of R14 is set at 100 Ω, 200 Ω, 300 Ω in order.
Then, the user is by the setting-up time separately of correspondence the the 1st, the 2nd, the 3rd gray scale of press key input section 100 input display part background lights, and control part 500 just is stored in the setting-up time separately of input in the storage part 200.
Then, control part 500 will compare current time and the time of grade setting separately that is stored in the storage part 200, thereby the gray scale of the background light automatic brightness adjustment of LCD module 400 to the corresponding current time.
If the setting-up time of corresponding the 1st gray scale of current time, for the brightness of background light being locked in the 1st rank (bright), control part 500 will be exported strong signal by the 1st lead-out terminal (P1), by all the other lead-out terminals (P2, P3) output weak signal.
At this moment, according to the strong signal that the 1st lead-out terminal (P1) sends, transistor Q10 will open (on).If transistor Q10 opens, transistor Q20 also and then opens, thereby the background light voltage (V by resistance R 10
BL) supply in the LCD module 400.That is, LCD module 400 is according to the background light voltage (V that provides
BL) export background light brightness corresponding to the 1st rank (bright).
In like manner, if the setting-up time of the setting-up time of corresponding the 2nd gray scale of current time or corresponding the 3rd gray scale, corresponding regulating loop will be made corresponding action, thereby the background light voltage (V by R12 or R14
BL) supply in the LCD module 400.That is, LCD module 400 is according to the background light voltage (V that provides
BL) export corresponding to the 2nd rank (common) or the not background light brightness of (secretly) of 3rd level.
The display part brightness control method that possesses the foundation micro-wave oven of the present invention that constitutes in sum is described in detail as follows.
As shown in Figure 5, at first the user import corresponding LCD module 400 background light brightness the 1st, the 2nd, other setting-up time of 3rd level (S10).
When in the present embodiment, being 6:00 as if the 1st rank (bright) setting-up time that the user imported, when the 2nd rank (common) setting-up time is 16:00; 3rd level is stored in (S20) in the storage part 200 to the time of grade setting separately that the user imported when (secretly), setting-up time was not 20:00.
Then, compare current time and the time of grade setting separately (S30) that is stored in the storage part 200.
At first, judge whether the current time belongs in 6: 00～15: 59 scopes that the 1st rank (bright) is set (S40).
Above-mentioned judged result (S40), if the current time belongs to 06: 00～15: 59 scopes in, for the brightness of background light being locked in the 1st rank (bright), control part 500 will be exported strong signal by the 1st lead-out terminal (P1), by the 2nd and the 3rd lead-out terminal (P2, P3) output weak signal.
At this moment, the transistor Q10 that states brightness regulation portion 300 according to the control signal of above-mentioned control part 500 will open.And transistor Q12 and Q14 will close (S50).That is, on background light automatic brightness adjustment to the 1 rank (bright) of LCD module 400.
Then, As time goes on, if the current time belongs in 16: 00～17: 59 scopes that the 2nd rank (common) is set, for the brightness of background light being locked in the 2nd rank (common), control part 500 will be exported strong signal by the 2nd lead-out terminal (P2), by the 1st and the 3rd lead-out terminal (P1, P3) output weak signal.
At this moment, according to the control signal of above-mentioned control part 500, the transistor Q12 of brightness regulation portion 300 will open.And, transistor Q10 and Q14 will close (S60, S70).That is, on background light automatic brightness adjustment to the 2 ranks (common) of LCD module 400.
Then, As time goes on, if the current time belongs in 3rd level 20: 00～05: 59 scopes that (secretly) do not set, for the brightness of background light being locked in 3rd level other (secretly), above-mentioned control part 500 will be exported strong signal by the 3rd lead-out terminal (P3), by the 1st and the 2nd lead-out terminal (P1, P2) output weak signal.
At this moment, according to the control signal of above-mentioned control part 500, the transistor Q14 of brightness regulation portion 300 will open.And transistor Q10 and Q12 will close (S80).That is, the background light automatic brightness adjustment of LCD module 400 is to 3rd level other (secretly).
Therefore, do not have user's brightness regulation direct control order, display part brightness of the present invention also can be adjusted automatically by the time.That is, the background light brightness of LCD module 400 is according to the predefined working time of gray scale separately of user, and is adjusted automatically on a time period.
In sum, in the category of basic fundamental thought of the present invention, possess the personnel of relevant knowledge of the present invention, can carry out various changes the present invention.The present invention is to serve as according to making an explanation with the patent claim that provides.
Claims (4)
1, a kind of display part brightness controlling device of micro-wave oven, be included in magnetron or heater in the micro-wave oven as heating source, the press key input section that is provided with interconnective control part, carries out the display part of state and user's input for the culinary art of microwave oven, it is characterized in that: be connected to press key input section and storage part with control part, press key input section is the press key input section of setting-up time separately that makes a plurality of gray scales of display part, and storage part is the storage part of the setting-up time of gray scale separately imported by press key input section; Described control part is the comparison current time and is stored in the setting-up time of gray scale separately of described storage part, makes the brightness of display part be transformed into control part corresponding to the gray scale of current time automatically.
2, a kind of display part brightness controlling device of micro-wave oven is characterized in that: be provided with in the micro-wave oven of display part in order to show culinary art to carry out state, the display part brightness control method comprises:
The user imports the stage S10 of setting-up time separately of a plurality of gray scales of display part;
The stage S20 of the storage setting-up time of gray scale separately that the user imported;
The stage S30 of the setting-up time of gray scale separately that compares the current time and stored;
Make the brightness of display part be transformed into stage S40 automatically corresponding to the gray scale of current time.
3, control method according to claim 2, it is characterized in that: in the method, the brightness degree of the display part of setting is to be made of the 1st rank, the 2nd rank, the other institute of 3rd level, and the user is to comprise following process to the stage of the setting-up time separately of a plurality of gray scales of input display part:
Input is locked in the brightness of display part the stage S50 of the 1st grade of other the 1st setting-up time;
Input is locked in the brightness of display part the stage S70 of the 2nd grade of other the 2nd setting-up time;
Input is locked in the brightness of display part the stage S80 of other the 3rd setting-up time of 3rd level.
4, control method according to claim 3 is characterized in that: the automatic brightness adjustment of described display part to corresponding at present the stage of the gray scale of time includes:
Current time is during corresponding to the 1st setting-up time, 1 grade of other stage of the brightness regulation to the of display part S60;
Stage;
Current time is during corresponding to the 3rd setting-up time, the brightness regulation of display part to other stage of 3rd level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410019440 CN1704676A (en) | 2004-05-27 | 2004-05-27 | Brightness control device for microwave oven display part and control method therefor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410019440 CN1704676A (en) | 2004-05-27 | 2004-05-27 | Brightness control device for microwave oven display part and control method therefor |
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| Publication Number | Publication Date |
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| CN1704676A true CN1704676A (en) | 2005-12-07 |
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ID=35576796
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410019440 Pending CN1704676A (en) | 2004-05-27 | 2004-05-27 | Brightness control device for microwave oven display part and control method therefor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839510A (en) * | 2009-03-20 | 2010-09-22 | 上海松下微波炉有限公司 | Method for displaying automatic menu interface of cooking device |
| CN104812129A (en) * | 2015-03-26 | 2015-07-29 | 广东美的厨房电器制造有限公司 | Control system and method for household electrical appliance |
| CN106228945A (en) * | 2016-07-21 | 2016-12-14 | 广东欧珀移动通信有限公司 | Control method and control device |
| CN108968639A (en) * | 2018-07-23 | 2018-12-11 | 珠海格力电器股份有限公司 | Cooking appliance working progress display control method and cooking appliance |
-
2004
- 2004-05-27 CN CN 200410019440 patent/CN1704676A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839510A (en) * | 2009-03-20 | 2010-09-22 | 上海松下微波炉有限公司 | Method for displaying automatic menu interface of cooking device |
| CN104812129A (en) * | 2015-03-26 | 2015-07-29 | 广东美的厨房电器制造有限公司 | Control system and method for household electrical appliance |
| CN106228945A (en) * | 2016-07-21 | 2016-12-14 | 广东欧珀移动通信有限公司 | Control method and control device |
| CN108968639A (en) * | 2018-07-23 | 2018-12-11 | 珠海格力电器股份有限公司 | Cooking appliance working progress display control method and cooking appliance |
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