A fully automatic washing machine standby automatic power-off device
A fully automatic washing machine and automatic power-off technology, which is applied to the control device of the washing machine, washing device, computer control, etc., and can solve the problems of inability to realize automatic control, power consumption, etc.
Active Publication Date: 2016-02-03
CHANGZHOU INST OF MECHATRONIC TECH
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Problems solved by technology
[0003] The above two switches have their limitations. For the first switch, if the strong electric plug of the fully automatic washing machine is not pulled out, the controller is always in the working state and has a certain power consumption; for the second switch, although it can Realize zero power consumption, but must be manually operated by the user. Once the user starts the washing machine and leaves, when the washing is over, the controller is still in the working state, so complete automatic control cannot be realized
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[0010] The present invention will now be described in further detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0011] Such as figure 1 As shown, IC1, BG1, R1, R2, and C1 form a delay circuit. When the power switch of the washing machine is turned on, the level of pin 2 of IC1 rises. At this time, pin 6 is still low, and the output pin 3 is high, and the relay J1 is closed. When the washing machine is powered on, the value of C1 determines the delay time (currently set to 2 minutes). After starting the washing machine, point A receives signals from the signal source (as long as it can provide any high level within a 1-minute period, such as motor control signals, etc.) ), BG1 is reversely connected to both ends of C1, C1 is discharge...
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The invention relates to a full-automatic washing machine standby automatic power-off device which comprises a time-base circuit used as a main control chip. A high triggering end of the time-base circuit is connected with a first resistor, a second resistor and a first capacitor. The device further comprises an audion. A base electrode of the audion is connected with an adjustable resistor. The first capacitor is arranged between an emitter and a collector of the audion. The audion is reversely connected to the two ends of the first capacitor. A low triggering end of the time-base circuit is connected with a third resistor and a second capacitor which are arranged in parallel. The output end of the time-base circuit is connected with a relay through a fourth resistor. An RC delaying technology is used, the purpose of delaying all the time is achieved by ceaseless capacitor discharging through periodic control signals during working of a washing machine, and after the washing machine finishes working and control signals do not exist any longer, a power supply is cut out after a period of RC delaying.
Description
technical field [0001] The invention relates to a power cut-off device, in particular to a fully automatic washing machine standby automatic power cut-off device. Background technique [0002] When the country implements energy saving and emission reduction measures, there are clear requirements for the standby power consumption of washing machines, but the operation of washing machines remains unchanged. At present, household fully automatic washing machines on the market mainly realize the purpose of power-off in standby through an external controller. The power switch of the controller is mainly divided into two types: one, an array scanning button is used as the "power" button on the controller. Carry out array scanning, when it is detected that the "power" button is pressed, the display board enters the power-on display state; secondly, the mechanical power switch is connected to a mechanical power switch on the strong wire harness of the washing machine, the power swi...
Claims
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IPC IPC(8): D06F33/02G05B19/042
CPCD06F33/00
Inventor 姜清
Owner CHANGZHOU INST OF MECHATRONIC TECH