CN201165611Y - Washing machine having power off resume function - Google Patents
Washing machine having power off resume function Download PDFInfo
- Publication number
- CN201165611Y CN201165611Y CNU2008200453745U CN200820045374U CN201165611Y CN 201165611 Y CN201165611 Y CN 201165611Y CN U2008200453745 U CNU2008200453745 U CN U2008200453745U CN 200820045374 U CN200820045374 U CN 200820045374U CN 201165611 Y CN201165611 Y CN 201165611Y
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- washing machine
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- control circuit
- detection circuit
- voltage detection
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Abstract
The utility model discloses a washing machine with recovered function after the power cut, which comprises a data memorizer, which is connected with a main control circuit to save different operating mode information of the washing machine; a supply voltage detection circuit, which is connected with a main control circuit to detect the detection variation of the working voltage of the washing machine; a main control circuit, which comprises an electrolytic capacitor and a voltage stabilization unit to record the prior operating mode of the washing machine, and write or read the data in the data memorizer according to the detected result of supply voltage detection circuit. After the power cut of the washing machine, the washing machine can recover to the operating state before the power cut, the operation is convenient, the cost is low, the recovery is fully automatic, and the power cut recovery process is completely free from the manual operation.
Description
Technical field
The utility model relates to a kind of family electro-technical field, especially a kind of washing machine.
Background technology
The power failure of short time takes place through regular meeting in daily life.Each power off time is very short, just can restore electricity in about about one minute, but bring many troubles to people's life.Some people is accustomed to before the evening sleep clothes being put into washing machine, has started machine and has just gone to bed, and clothes is taken out early in the morning in second day again and to be dried.If but evening through once of short duration power failure, even can recover soon, the task of washing machine can not have been finished, and can only wash again once the next morning, has both wasted the time, has also wasted power and water.
Summary of the invention
Even the purpose of this utility model is to overcome the work that conventional laundry apparatus service restoration after power failure still can't continue to finish remaining laundry voluntarily, and must provide a kind of washing machine with service restoration function by the technical problem of user's start-up by hand.
For realizing above purpose, the utility model has been taked following technical scheme: have the washing machine of service restoration function, comprise data storage, it is connected with main control circuit, in order to the different operating state of storage washing machine; Voltage detection circuit, it is connected with main control circuit, in order to detect the variation of washing machine operating voltage; Main control circuit includes electrochemical capacitor and regulator block, and it is according to the testing result of voltage detection circuit, record washing machine current working state, open write or read data memory in data.
The utility model main control circuit takes singlechip chip integrated, this single-chip microcomputer is under the situation of operate as normal, detect the decline of working power voltage, and provide electric current to make single-chip microcomputer finish the work of data storage Task Progress and the preservation of other relevant information by capacitor discharge.And the data of data storage corresponding stored unit are at first read in the startup each time of washing machine, judge that last task is normally to finish or unusual the interruption.If unusual situation of interrupting just enters the recovery pattern, read the working method setting before interrupting, and continue to carry out uncompleted task according to the Task Progress record.Also consider the situation that in laundry task process, may need the task that withdraws from, increased the function of " task cancellation ", under normal mode and recovery pattern, all can withdraw from any time, and in data storage, be labeled as normally and finish.
Described single-chip microcomputer control technology adopts prior art.
The capacitance of this electrochemical capacitor can be set to big slightly, when the electric power regular supply, electric capacity is in and is full of electricity condition, in case meet the power failure situation, electric capacity will serve as a charger and emit electric current, since regulator block still can be stable in the voltage supply scope of 8～12V output 5V voltage, can make single-chip microcomputer operate as normal at short notice like this, enough finish writing task to the data memory.
Described voltage detection circuit includes resistance, potentiometer, analog comparator and reference voltage source, and the negative pole of this analog comparator is connected with reference voltage source, and its positive pole is connected with potentiometer.In the utility model washing machine course of work, be vital to the detection of electric power variation.On circuit, connected two resistance and a potentiometer, and potentiometer is received on the positive pole of analog comparator in the single-chip microcomputer.The negative pole of analog comparator then is connected on the internal reference voltage source.When the voltage on the potentiometer was transferred to the 3V left and right sides, like this, when meeting power-off condition, negative saltus step will appear in analog comparator, and analog comparator will be at once to single-chip microcomputer output " 0 " signal.Meanwhile, single-chip microcomputer will be realized interrupting, and closes data storage electrical appliance in addition, and rapidly the data memory is carried out write operation, accurately measures the situation that is about to power failure.
Also comprise interconnective stand-by power supply and electromagnetic valve, and be connected with main control circuit respectively.Because washing machine is intake for the first time and imperfect tense can be had a power failure, cause clothing to be soaked by the washing powder solution of higher concentration, if the time is longer, can cause certain infringement to clothing.A stand-by power supply has been installed in the utility model.Washing machine detects when being about to have a power failure, washing machine at first can be write entry data memory with existing state and progress, whether find power failure by the progress detection then carries out taking place when the water filling first time is worked at washing machine, if words, at this moment wait, standby power supply module can make electromagnetic valve keep the state of unlatching, until reaching default water level, reduce the concentration of washing powder solution, reach the effect that prevents washing powder damage clothing.
On described voltage detection circuit, also be connected with electrochemical capacitor and regulator block.
Described electrochemical capacitor is connected in 12V dc source two ends, and its positive pole is connected with an end of regulator block, the other end ground connection of regulator block, and its 3rd end is connected with the 5V dc source.When the electric power regular supply, electrochemical capacitor is in and is full of electricity condition; Once meet the power failure situation, capacitor will serve as a charger and emit electric current.Because this regulator block still can stably be exported 5V voltage in the voltage supply scope of 8～12V, this can make single-chip microcomputer operate as normal at short notice, enough finishes the data memory is carried out writing task.
The utility model compared with prior art has following advantage: laundry function of the present utility model returns to the duty before having a power failure after power failure, easy to operate, cost is low, has full-automation, and the service restoration process breaks away from people's hand operated fully.
Description of drawings
Fig. 1 is the utility model system block diagram;
Fig. 2 is the utility model voltage detection circuit figure.
The specific embodiment
Below in conjunction with the drawings and specific embodiments content of the present utility model is described in further details.
Embodiment one
See also shown in Figure 1ly, the washing machine with service restoration function comprises data storage, and it is connected with main control circuit, in order to the different operating state of storage washing machine; Voltage detection circuit, it is connected with main control circuit, in order to detect the variation of washing machine operating voltage; Main control circuit includes electrochemical capacitor C1 and regulator block U2, and it is according to the testing result of voltage detection circuit, record washing machine current working state, and write or read data memory in data.
Voltage detection circuit includes resistance R 1 and R2, potentiometer V1, analog comparator U1 and reference voltage source, and the negative pole of this analog comparator V1 is connected with reference voltage source, and its positive pole is connected with potentiometer V1.
Also comprise interconnective stand-by power supply and electromagnetic valve, and be connected with main control circuit respectively.
As shown in Figure 2, Fig. 2 is the voltage detection circuit schematic diagram, it comprises analog comparator U1, resistance R 1 and R2, potentiometer V1, the negative pole of this analog comparator U1 is connected with the internal reference voltage source, its positive pole is connected with potentiometer V1, this potentiometer V1 two ends are connected with R2 with resistance R 1 respectively, the other end of resistance R 1 is connected with the positive pole of direct current 12V power supply and electrochemical capacitor C1 respectively, the other end of resistance R 2 is connected with the negative pole of electrochemical capacitor C1, the negative pole of this electrochemical capacitor C1 is connected back ground connection with the end of regulator block U2, the positive pole of electrochemical capacitor C1 is connected with the input of regulator block U2, direct current 5V power supply is connected between two outputs of regulator block U2, guarantees the output 5V power supply that regulator block U2 can be stable.
After washing machine was connected power supply, the single-chip microcomputer meeting very first time is accesses data memory voluntarily, therefrom judges washing machine and is in normal holding state or service restoration state.If the data storage condition in the EEPROM data storage is empty, then the automatic differentiation of single-chip microcomputer is normal holding state; Otherwise single-chip microcomputer can read the data in the EEPROM data storage, and continues previous uncompleted work; If the data that read the EEPROM data storage are when wrong, then single-chip microcomputer can empty the EEPROM data storage automatically and be shown as normal holding state (this situation for the prevention write-in program then move simulator for the first time occur wrong) automatically.Then, after configuring washing machine, in the washing machine course of work, if meet power-off condition, single-chip microcomputer can cut out the power supply (state display lamp for example of all electrical appliances except that the EEPROM data storage at once, the progress display lamp, photoelectrical coupler of isolating or the like), exist side by side and engrave record work at present progress and mode of operation (standard for example, economical, big three patterns of thing), data are write in the EEPROM data storage, enable back-up source according to job schedule then and carry out anti-washing powder damage clothing function.Behind power recovery next time, single-chip microcomputer can conduct interviews to the EEPROM data storage again the very first time, till washing machine normal termination work.In addition, also have cancel button on this simulator, when the operator wants to stop the laundry work of washing machine, press cancel button, single-chip microcomputer will record normal holding state in the EEPROM data storage.
It is 7805 regulator block that present embodiment has adopted model.Main control circuit has been taked the single-chip microcomputer of Atymega16 model, and what data storage adopted is device EEPROM data storage.Atmega16L inside has the E2ROM data storage of 512 bytes, and it constitutes an independently memory space, and each word can both be read or write.This memory can store the breakpoint data in good condition as a non-volatile data storage unit.This makes the reply work of sudden power failure make good processing.
Above-listed detailed description is at the specifying of the utility model possible embodiments, and this embodiment is not in order to limiting claim of the present utility model, does not allly break away from the equivalence that the utility model does and implements or change, all should be contained in the claim of this case.
Claims (5)
1, has the washing machine of service restoration function, it is characterized in that: comprise
Data storage, it is connected with main control circuit, in order to the different operating status information of storage washing machine;
Voltage detection circuit, it is connected with main control circuit, in order to detect the variation of washing machine operating voltage;
Main control circuit includes electrochemical capacitor and regulator block, and it is according to the testing result of voltage detection circuit, record washing machine current working state, and write or read data memory in data.
2, the washing machine with service restoration function according to claim 1, it is characterized in that: described voltage detection circuit includes resistance, potentiometer, analog comparator and reference voltage source, the negative pole of this analog comparator is connected with reference voltage source, and its positive pole is connected with potentiometer.
3, the washing machine with service restoration function according to claim 2 is characterized in that: also be connected with electrochemical capacitor and regulator block on described voltage detection circuit.
4, the washing machine with service restoration function according to claim 3, it is characterized in that: described electrochemical capacitor is connected in 12V dc source two ends, its positive pole is connected with an end of regulator block, the other end ground connection of regulator block, and its 3rd end is connected with the 5V dc source.
5, according to arbitrary described washing machine in the claim 1 to 4, it is characterized in that: also comprise interconnective stand-by power supply and electromagnetic valve, and be connected with main control circuit respectively with service restoration function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200453745U CN201165611Y (en) | 2008-03-25 | 2008-03-25 | Washing machine having power off resume function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200453745U CN201165611Y (en) | 2008-03-25 | 2008-03-25 | Washing machine having power off resume function |
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| Publication Number | Publication Date |
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| CN201165611Y true CN201165611Y (en) | 2008-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200453745U Expired - Fee Related CN201165611Y (en) | 2008-03-25 | 2008-03-25 | Washing machine having power off resume function |
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| CN (1) | CN201165611Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705597B (en) * | 2009-03-04 | 2012-07-04 | 南京乐金熊猫电器有限公司 | Power failure compensation arrangement for commercial clothing processing apparatus and its control method |
| CN103290652A (en) * | 2013-05-20 | 2013-09-11 | 海尔集团公司 | Washing machine and control method thereof |
| CN103794420A (en) * | 2014-01-17 | 2014-05-14 | 上海磊跃自动化设备有限公司 | Intelligent control device for power-losing inspection type low-voltage circuit breaker |
| CN106471175A (en) * | 2014-11-26 | 2017-03-01 | 松下知识产权经营株式会社 | Washing machine |
| CN106873504A (en) * | 2015-10-20 | 2017-06-20 | Ls 产电株式会社 | Plc system |
| CN108540125A (en) * | 2018-04-23 | 2018-09-14 | 厦门芯阳科技股份有限公司 | A kind of pulse electromagnetic valve-driving circuit and valve position accumulating method |
| US10226152B2 (en) | 2013-01-24 | 2019-03-12 | Strix Limited | Liquid heating apparatus and operating methods |
| WO2020088308A1 (en) * | 2018-10-30 | 2020-05-07 | 青岛海尔洗衣机有限公司 | Washing machine |
| CN112981850A (en) * | 2019-12-18 | 2021-06-18 | 青岛海尔洗衣机有限公司 | Water amount control method for washing machine |
-
2008
- 2008-03-25 CN CNU2008200453745U patent/CN201165611Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705597B (en) * | 2009-03-04 | 2012-07-04 | 南京乐金熊猫电器有限公司 | Power failure compensation arrangement for commercial clothing processing apparatus and its control method |
| US10226152B2 (en) | 2013-01-24 | 2019-03-12 | Strix Limited | Liquid heating apparatus and operating methods |
| CN103290652B (en) * | 2013-05-20 | 2018-05-08 | 青岛海尔洗衣机有限公司 | A kind of control method for washing machine and washing machine |
| CN103290652A (en) * | 2013-05-20 | 2013-09-11 | 海尔集团公司 | Washing machine and control method thereof |
| CN103794420A (en) * | 2014-01-17 | 2014-05-14 | 上海磊跃自动化设备有限公司 | Intelligent control device for power-losing inspection type low-voltage circuit breaker |
| CN106471175A (en) * | 2014-11-26 | 2017-03-01 | 松下知识产权经营株式会社 | Washing machine |
| CN106471175B (en) * | 2014-11-26 | 2018-04-20 | 松下知识产权经营株式会社 | Washing machine |
| CN106873504A (en) * | 2015-10-20 | 2017-06-20 | Ls 产电株式会社 | Plc system |
| CN108540125A (en) * | 2018-04-23 | 2018-09-14 | 厦门芯阳科技股份有限公司 | A kind of pulse electromagnetic valve-driving circuit and valve position accumulating method |
| WO2020088308A1 (en) * | 2018-10-30 | 2020-05-07 | 青岛海尔洗衣机有限公司 | Washing machine |
| CN112805431A (en) * | 2018-10-30 | 2021-05-14 | 青岛海尔洗衣机有限公司 | Washing machine |
| CN112805431B (en) * | 2018-10-30 | 2021-10-19 | 青岛海尔洗衣机有限公司 | Washing machine |
| CN112981850A (en) * | 2019-12-18 | 2021-06-18 | 青岛海尔洗衣机有限公司 | Water amount control method for washing machine |
| CN112981850B (en) * | 2019-12-18 | 2024-05-24 | 青岛海尔洗衣机有限公司 | Water quantity control method for washing machine |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 |