CN202576937U - Power-off memory circuit of full-automatic impeller type washing machine - Google Patents
Power-off memory circuit of full-automatic impeller type washing machine Download PDFInfo
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- CN202576937U CN202576937U CN 201220242229 CN201220242229U CN202576937U CN 202576937 U CN202576937 U CN 202576937U CN 201220242229 CN201220242229 CN 201220242229 CN 201220242229 U CN201220242229 U CN 201220242229U CN 202576937 U CN202576937 U CN 202576937U
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Abstract
The utility model relates to a power-off memory circuit of a full-automatic impeller type washing machine. The power-off memory circuit comprises an MCU (Micro-programmed Controlled Unit); an input end of the MCU is connected with an output end of a detecting circuit; a power supply circuit supplies power to the detecting circuit and the MCU; and the MUC is internally provided with a FLASH memory. According to the power-off memory circuit provided by the utility model, power supply signals are detected by arranging the detecting circuit, and are subjected to certain operation treatment by the MCU, so that if the washing machine is powered off and then powered on after a user powers on the washing machine, the washing machine can automatically operate a program. Therefore, the washing machine is provided from stopping due to a normal condition of a power source; the intelligence degree of the washing machine is improved; the washing efficiency is further indirectly improved; and the functions of the washing machine are more humanized.
Description
Technical field
The utility model relates to the automatic washing machine field, especially a kind of full-automatic impeller type washing machine circuit-breaking memory circuit.
Background technology
At present, the domestic full-automatic rotary drum washing machine on the market after the user configures program start, can need not user's real-time operation aside automatically according to the parameter of user working procedure.In laundry processes, after the user leaves, if having a power failure or other reason causes the washing machine power interruptions; Washing machine procedure is also interrupted thereupon, can't move down, even power up; Washing machine also can't continue to carry out program just now; Must wait the user to return, reset, can start washing machine and work on.So the Based Intelligent Control of washing machine aspect automatic operating is still waiting to improve.
The utility model content
It is a kind of when full-automatic impeller type washing machine moves that the purpose of the utility model is to provide, the state that can resume operation automatically after the power interruptions, the full-automatic impeller type washing machine circuit-breaking memory circuit of raising detersive efficiency.
For realizing above-mentioned purpose; The utility model has adopted following technical scheme: a kind of full-automatic impeller type washing machine circuit-breaking memory circuit; Comprise microcontroller MCU; Its input links to each other with the output of testing circuit, and power circuit is established the FLASH memory to testing circuit and microcontroller MCU power supply in the microcontroller MCU.
Can know that by technique scheme the utility model detects power supply signal through testing circuit is set, and by microcontroller MCU signal is carried out certain operational processes; After the user started washing machine, if send a telegram here after the outage, washing machine can move program automatically again; Avoid washing machine owing to the unusual condition of power supply stops; Improved the intelligent degree of washing machine, also promoted detersive efficiency indirectly, made the function hommization more of washing machine.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model;
Fig. 2 is the circuit theory diagrams of the utility model.
The specific embodiment
A kind of full-automatic impeller type washing machine circuit-breaking memory circuit; Comprise microcontroller MCU 1, its input links to each other with the output of testing circuit 2, and power circuit 3 is to testing circuit 2 and microcontroller MCU 1 power supply; Establish the FLASH memory in the microcontroller MCU 1, as shown in Figure 1.
As shown in Figure 2; Described power circuit 3 comprises the transformer PT1 of input termination 220V alternating current; The output of transformer PT1 links to each other with the input of testing circuit 2, rectifier bridge respectively, and rectifier bridge is the full-wave rectification bridge of being made up of diode D5, D6, D7, D8, and crystal electric capacity C16 is attempted by on the output of rectifier bridge; The end ground connection of crystal electric capacity C16, the other end links to each other with the input of microcontroller MCU 1 through chip IC 5.Microcontroller MCU 1 is the Flash chip, and power supply signal is the 220V alternating current through transformer PT1 step-down, and rectifier bridge converts alternating current into direct current, converts to+signal of telecommunication of 5V through chip IC 5 through filtering again, operating voltage is provided for microcontroller MCU 1.
As shown in Figure 2; Described testing circuit 2 comprises commutation diode D12, D13, and the anode of the two all links to each other with the output of power circuit 3, connects the base stage of triode Q11 after the negative electrode parallel connection of the two successively through resistance R 11, R12; The grounded emitter of triode Q11; The colelctor electrode of triode Q11 connects the base stage of triode Q12 through resistance R 14, the grounded emitter of triode Q12, and the colelctor electrode of triode Q12 connects+the 5V direct current through resistance R 18; And connect the base stage of triode Q11 through resistance R 17, the colelctor electrode of triode Q11 connects the input of microcontroller MCU 1 through resistance R 19.Commutation diode D12, the D13 current signal rectification after with step-down inputs to the comparator that triode Q11, Q12 form, and comparator converts input signal to square-wave signal, gives microcontroller MCU 1.
Further explain below in conjunction with Fig. 1,2 pairs of the utility model.
The utility model is when work; At first, testing circuit 2 detects power supply signal in real time and is sent to microcontroller MCU 1, when microcontroller MCU 1 confirms that power supply signal interrupts; If program is in running status; Then belong to improper outage, the relevant parameter of program running is recorded in the memory, afterwards outage; Otherwise, normal power down; Secondly, when washing machine powered on once more, microcontroller MCU 1 read the data that store in the memory; Judge the whether normal termination of program before powering on; If judged result is then called the relevant parameter of store memory storage and according to this parameter operation, is removed the data of store memory storage again for not; Otherwise operation normally powers on.Memory can be peripheral memory chip, or the erasable internal memory that carries of microcontroller MCU 1 inside, can not have under the situation of power supply, preserves inner data.In the utility model, described memory is the FLASH memory of microcontroller MCU 1 inside.
Washing machine powers on, and testing circuit 2 detects power supply signal in real time, and testing result is sent to microcontroller MCU 1; Microcontroller MCU 1 judges whether power supply signal interrupts, and is not as if judged result, then termination routine; Otherwise it is in service whether determining program is in.It is in service whether microcontroller MCU 1 determining program is in, and is not as if judged result, then termination routine; Otherwise, confirm whether power supply signal interrupts, if confirm; Then with power down sign, operational factor and checking data write memory, if do not have affirmation, then termination routine.
When washing machine powered on once more, microcontroller MCU 1 read the content of store memory storage earlier, and the numerical value that reads of verification; Judge whether the content of verification makes mistakes, if judged result is for being, termination routine then; Otherwise whether secondary program belongs to improper outage in the judgement.Microcontroller MCU 1 judges whether go up secondary program belongs to improper outage, if judged result is not for, and termination routine then, otherwise, the parameter assignment of the store memory storage of reading in program parameter, is removed the content of store memory storage.
In sum, the utility model detects power supply signal through testing circuit 2 is set, and carries out certain operational processes by 1 pair of signal of microcontroller MCU; After the user started washing machine, if send a telegram here after the outage, washing machine can move program automatically again; Avoid washing machine owing to the unusual condition of power supply stops; Improved the intelligent degree of washing machine, also promoted detersive efficiency indirectly, made the function hommization more of washing machine.
Claims (3)
1. full-automatic impeller type washing machine circuit-breaking memory circuit; It is characterized in that: comprise microcontroller MCU (1); Its input links to each other with the output of testing circuit (2); Power circuit (3) is to testing circuit (2) and microcontroller MCU (1) power supply, and microcontroller MCU establishes the FLASH memory in (1).
2. full-automatic impeller type washing machine circuit-breaking memory circuit according to claim 1 is characterized in that: described power circuit (3) comprises the transformer PT1 of input termination 220V alternating current,
The output of transformer PT1 links to each other with the input of testing circuit (2), rectifier bridge respectively; Rectifier bridge is the full-wave rectification bridge of being made up of diode D5, D6, D7, D8; Crystal electric capacity C16 is attempted by on the output of rectifier bridge; The end ground connection of crystal electric capacity C16, the other end links to each other with the input of microcontroller MCU (1) through chip IC 5.
3. full-automatic impeller type washing machine circuit-breaking memory circuit according to claim 1; It is characterized in that: described testing circuit (2) comprises commutation diode D12, D13; The anode of the two all links to each other with the output of power circuit (3); Connect the base stage of triode Q11 after the negative electrode parallel connection of the two successively through resistance R 11, R12, the grounded emitter of triode Q11, the colelctor electrode of triode Q11 connects the base stage of triode Q12 through resistance R 14; The grounded emitter of triode Q12; The colelctor electrode of triode Q12 connects+the 5V direct current through resistance R 18, and connects the base stage of triode Q11 through resistance R 17, and the colelctor electrode of triode Q11 connects the input of microcontroller MCU (1) through resistance R 19.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220242229 CN202576937U (en) | 2012-05-28 | 2012-05-28 | Power-off memory circuit of full-automatic impeller type washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220242229 CN202576937U (en) | 2012-05-28 | 2012-05-28 | Power-off memory circuit of full-automatic impeller type washing machine |
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| Publication Number | Publication Date |
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| CN202576937U true CN202576937U (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220242229 Expired - Lifetime CN202576937U (en) | 2012-05-28 | 2012-05-28 | Power-off memory circuit of full-automatic impeller type washing machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720035A (en) * | 2012-05-28 | 2012-10-10 | 合肥荣事达三洋电器股份有限公司 | Power off memory circuit and power off memory method for full-automatic impeller type washing machine |
| CN104233701A (en) * | 2013-06-19 | 2014-12-24 | 无锡小天鹅股份有限公司 | Washing machine, power failure memory control method thereof and power failure memory control device of washing machine |
-
2012
- 2012-05-28 CN CN 201220242229 patent/CN202576937U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720035A (en) * | 2012-05-28 | 2012-10-10 | 合肥荣事达三洋电器股份有限公司 | Power off memory circuit and power off memory method for full-automatic impeller type washing machine |
| CN104233701A (en) * | 2013-06-19 | 2014-12-24 | 无锡小天鹅股份有限公司 | Washing machine, power failure memory control method thereof and power failure memory control device of washing machine |
| CN104233701B (en) * | 2013-06-19 | 2017-08-04 | 无锡小天鹅股份有限公司 | Washing machine and its power-fail memory function control method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WHIRLPOOL (CHINA) CO., LTD. Free format text: FORMER NAME: HEFEI RONGSHIDA SANYO ELECTRIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 230088 No. 96 science Avenue, hi tech Zone, Anhui, Hefei Patentee after: Whirlpool (China) Limited by Share Ltd Address before: 230088 No. 96 science Avenue, hi tech Zone, Anhui, Hefei Patentee before: Hefei Rongshida Sanyo Electric Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |