CN101896020B - Automatic power-off device of microwave oven and control method thereof - Google Patents
Automatic power-off device of microwave oven and control method thereof Download PDFInfo
- Publication number
- CN101896020B CN101896020B CN201010233293XA CN201010233293A CN101896020B CN 101896020 B CN101896020 B CN 101896020B CN 201010233293X A CN201010233293X A CN 201010233293XA CN 201010233293 A CN201010233293 A CN 201010233293A CN 101896020 B CN101896020 B CN 101896020B
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- microwave oven
- power
- control circuit
- computer plate
- terminal
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- 238000000034 method Methods 0.000 title claims description 11
- 208000012839 conversion disease Diseases 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 230000008030 elimination Effects 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 3
- 239000012467 final product Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- Y02B40/143—
Abstract
The automatic power-off device of microwave oven includes power line with plug, filter or fuse assembly connected to the power line for filtering noise of AC power supply, computer board control circuit connected to the output of the filter or fuse assembly, main circuit and change-over switch including three terminals, the first terminal is connected to the output of the filter or fuse assembly, the second terminal is connected to the main circuit, and the third terminal is connected to the primary circuit of the transformer in the computer board control circuit. The computer board control circuit also comprises a power supply relay, and the power supply relay is controlled by the computer board control circuit to be closed; the first terminal of the changeover switch is connected to the primary circuit of the transformer through the power relay. The switch is set on the door of the microwave oven. The invention has the characteristics of simple and reasonable structure, low manufacturing cost, flexible operation and wide application range.
Description
Technical field
The present invention relates to the auto-power-off device and the control method thereof of a kind of microwave oven, particularly a kind of microwave oven.
Background technology
Existing controlling circuit of microwave oven all is provided with door interlock switch and readiness control circuit device.If the user is the circuit of start-up control magnetron work not, microwave oven can be in holding state, and the user can be convenient to use microwave oven under holding state.Therefore, many users are for fear of the trouble of socket power line, and the power line of microwave oven often is to keep and the external power source on-state, and microwave oven is also just always at holding state.In the standby process, microwave oven is also consuming electric energy; Especially household microwave oven, the operating time is generally very short, and the suitable length of stand-by time in one day has been wasted electric energy in the standby process.
Summary of the invention
The object of the invention aims to provide auto-power-off device and the control method thereof that a kind of simple and reasonable, flexible operation, cost of manufacture are low, avoid waste of energy, microwave oven applied widely, to overcome weak point of the prior art.
Press the auto-power-off device of a kind of microwave oven of this purpose design; Comprise the power line of being with plug, be connected and be used for power line elimination AC power noise filter or protective tube assembly, be connected the computer plate control circuit and the main circuit of the output of filter or protective tube assembly; Its architectural feature is also to comprise the conversion hysteria switch; This conversion hysteria switch comprises three terminals, and wherein, the first terminal connects the output of filter or protective tube assembly; Second terminal connects main circuit, and the 3rd terminal connects the primary circuit of the transformer in the computer plate control circuit.
Said computer plate control circuit also comprises power supply relay, and this power supply relay is by computer plate control circuit control adhesive; The first terminal of conversion hysteria switch is connected to the primary circuit of transformer through power supply relay.
Said conversion hysteria switch is arranged on the fire door of microwave oven.
A kind of control method of auto-power-off device of microwave oven is characterized in that microwave oven first during energized, owing to do not have power supply to offer the transformer on the computer plate control circuit, thereby microwave oven can't be worked; When the user opened the fire door of microwave oven, the first terminal of conversion hysteria switch and the 3rd terminal were connected, and this moment, transformer was started working, the energising of computer plate control circuit, the adhesive of computer plate control circuit control power supply relay; Therefore, when fire door was closed, computer plate control circuit still worked on; When microwave oven through outage stand-by period T when not working, computer plate control circuit control power supply relay breaks off, the dump of computer plate control circuit then, microwave oven is not worked.
The control panel of microwave oven is provided with the power-down mode function key, after the user presses this power-down mode function key, and the outage stand-by period T of the display screen display system acquiescence on the control panel; The user give tacit consent to as required or revise the outage stand-by period T.
When the user presses the power-down mode function key, be the cancellation automatic circuit break function.
The scope that is provided with of said outage stand-by period T is 1～30 minute.
The present invention compares with existing microwave oven, has the function of automatic outage; The user can select acquiescence or revise outage stand-by period T, thereby avoid waste of energy according to self needs, realizes energy-conservation automatic control.And when the user need use microwave oven, only need open fire door, and get final product energized, easy and simple to handle, safe and reliable.
The present invention need just not extract the plug of power line from external power receptacle can realize the dump function; Both be user-friendly to; Can avoid standby waste electric energy again, its have simple and reasonable, cost of manufacture is low, flexible operation, advantage of wide range of application.
Description of drawings
Fig. 1 is that the circuit of one embodiment of the invention connects sketch map.
Among the figure: 1 is power line, and 2 is filter or protective tube assembly, and 3 is computer plate control circuit, and 4 is main circuit, and 5 is the conversion hysteria switch, and 6 is power supply relay, and 7 is transformer, and 50 is the first terminal, and 51 is second terminal, and 52 is the 3rd terminal.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Referring to Fig. 1; The auto-power-off device of this microwave oven; Comprise the power line 1 of being with plug, be connected and be used for power line 1 elimination AC power noise filter or protective tube assembly 2, be connected computer plate control circuit 3 and the main circuit 4 and the conversion hysteria switch 5 of the output of filter or protective tube assembly 2, conversion hysteria switch 5 is as the main sensitive switch of whole microwave oven.Conversion hysteria switch 5 is arranged on the fire door of microwave oven.
Conversion hysteria switch 5 comprises three terminals, and wherein, the first terminal 50 connects the output of filter or protective tube assembly 2, and second terminal 51 connects the primary circuit that main circuit 4, the three terminals 52 connect the transformer 7 in the computer plate control circuit 3.
Computer plate control circuit 3 also comprises power supply relay 6, and this power supply relay 6 is by the 3 control adhesives of computer plate control circuit; The first terminal 50 of conversion hysteria switch 5 is connected to the primary circuit of transformer 7 through power supply relay 6.In the present embodiment, control chip control power supply relay 6 adhesives in the computer plate control circuit 3, transformer 7 is a low-tension transformer.
When to microwave oven first during energized, owing to do not have power supply to offer the transformer 7 on the computer plate control circuit 3, thereby microwave oven can't be worked.When the user opened the fire door of microwave oven, the first terminal 50 of conversion hysteria switch 5 and the 3rd terminal 52 were connected, and this moment, transformer 7 was started working, 3 energisings of computer plate control circuit, 6 adhesives of computer plate control circuit 3 control power supply relays; Therefore, when fire door was closed, computer plate control circuit 3 still worked on; When microwave oven through outage stand-by period T when not working, computer plate control circuit 3 control power supply relays 6 break off, the dump of computer plate control circuit 3 then, microwave oven is not worked.
The control panel of microwave oven is provided with the power-down mode function key, after the user presses this power-down mode function key, and the outage stand-by period T of the display screen display system acquiescence on the control panel; The user give tacit consent to as required or revise the outage stand-by period T.
When the user presses the power-down mode function key, be the cancellation automatic circuit break function.And when the user need use microwave oven, only need open fire door, get final product energized.
In the present embodiment, the scope that is provided with of outage stand-by period T is 1～30 minute.
Claims (4)
1. the control method of the auto-power-off device of a microwave oven; The auto-power-off device of microwave oven comprises the power line (1) of being with plug, be connected and be used for the filter or the protective tube assembly (2) of elimination AC power noise with power line (1), be connected the computer plate control circuit (3) and the main circuit (4) of the output of filter or protective tube assembly (2); It is characterized in that also comprising conversion hysteria switch (5); This conversion hysteria switch (5) comprises three terminals, and wherein, the first terminal (50) connects the output of filter or protective tube assembly (2); Second terminal (51) connects main circuit (4), and the 3rd terminal (52) connects the primary circuit of the transformer (7) in the computer plate control circuit (3);
Said computer plate control circuit (3) also comprises power supply relay (6), and this power supply relay (6) is by computer plate control circuit (3) control adhesive; The first terminal (50) of conversion hysteria switch (5) is connected to the primary circuit of transformer (7) through power supply relay (6);
Said conversion hysteria switch (5) is arranged on the fire door of microwave oven;
To microwave oven first during energized, owing to do not have power supply to offer the transformer (7) on the computer plate control circuit (3), thereby microwave oven can't be worked; When the user opened the fire door of microwave oven, the first terminal (50) of conversion hysteria switch (5) and the 3rd terminal (52) were connected, and transformer this moment (7) is started working, computer plate control circuit (3) energising, the adhesive of computer plate control circuit (3) control power supply relay (6); Therefore, when fire door was closed, computer plate control circuit (3) still worked on; When microwave oven through outage stand-by period T when not working, computer plate control circuit (3) control power supply relay (6) breaks off, the dump of computer plate control circuit (3) then, microwave oven is not worked.
2. the control method of the auto-power-off device of microwave oven according to claim 1; The control panel that it is characterized in that microwave oven is provided with the power-down mode function key; After the user presses this power-down mode function key, the outage stand-by period T of the display screen display system acquiescence on the control panel; The user give tacit consent to as required or revise the outage stand-by period T.
3. the control method of the auto-power-off device of microwave oven according to claim 2 when it is characterized in that the user presses the power-down mode function key, is the cancellation automatic circuit break function.
4. the control method of the auto-power-off device of microwave oven according to claim 1 and 2 is characterized in that the scope that is provided with of said outage stand-by period T is 1～30 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010233293XA CN101896020B (en) | 2010-07-15 | 2010-07-15 | Automatic power-off device of microwave oven and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010233293XA CN101896020B (en) | 2010-07-15 | 2010-07-15 | Automatic power-off device of microwave oven and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101896020A CN101896020A (en) | 2010-11-24 |
| CN101896020B true CN101896020B (en) | 2012-12-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010233293XA Active CN101896020B (en) | 2010-07-15 | 2010-07-15 | Automatic power-off device of microwave oven and control method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN101896020B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105263208B (en) * | 2015-11-19 | 2019-03-15 | 广东美的厨房电器制造有限公司 | Microwave oven circuit and micro-wave oven |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295956A (en) * | 2007-04-27 | 2008-10-29 | 乐金电子(天津)电器有限公司 | Controller for base plate electric machine of microwave oven |
| CN201273616Y (en) * | 2008-08-06 | 2009-07-15 | 美的集团有限公司 | Timer for microwave oven |
| CN101742749A (en) * | 2008-11-21 | 2010-06-16 | 乐金电子(天津)电器有限公司 | Automatically power-off safe microwave oven |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2687537Y (en) * | 2004-04-12 | 2005-03-23 | 广东美的集团股份有限公司 | Lighting lamp control device for microwave oven |
-
2010
- 2010-07-15 CN CN201010233293XA patent/CN101896020B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295956A (en) * | 2007-04-27 | 2008-10-29 | 乐金电子(天津)电器有限公司 | Controller for base plate electric machine of microwave oven |
| CN201273616Y (en) * | 2008-08-06 | 2009-07-15 | 美的集团有限公司 | Timer for microwave oven |
| CN101742749A (en) * | 2008-11-21 | 2010-06-16 | 乐金电子(天津)电器有限公司 | Automatically power-off safe microwave oven |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101896020A (en) | 2010-11-24 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER NAME: MEIDI GROUP CO. LTD. |
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| CP03 | Change of name, title or address |
Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: MIDEA GROUP Co.,Ltd. Address before: 528300 Penglai Road, Beijiao Town, Shunde District, Guangdong, Foshan Patentee before: Midea Group |