KR910003148B1 - Control system of tableware washer - Google Patents

Abstract

The control circuit has a microcomputer (MIC) which is responsive to entry of data from a key input (1-8) and a temperature detector to control a drive. The drive includes a heater for heating the washing water and for drying the washed tableware, a washing pump (WP) for washing tableware, and a draining pump (DP) for draining water in the washer. The control also includes luminescent diode (LED) for displaying the process selected by the key input. The control circuit enables the washer not only to carry out a complete washing and drying process by pushing the key for normal washing, strong washing, rinsing or drying but also to promote effective washing by the precise control of the microcomputer (MIC).

Description

Dishwasher Control System

1 is an embodiment of the present invention dishwasher.

2 is an administrative state diagram of the dishwasher of the present invention.

3 is a drive flowchart of the present invention.

* Explanation of symbols for main parts of the drawings

PS: Push Switch DS: Door Switch

HT ₁ , HT ₂ : Heater T ₁ , T ₂ : Trans

WP: Washing Pump DP: Drainage Pump

FV: Water Supply Valve DT: Detergent Injector

FAN: Drying Fan BZ ₁ -BZ ₃ : Buzzer

TR ₁ -TR ₈ : Transistor MIC: Micom

1-1: Electric circuit part 1-2: AC DC conversion part

1-3: Interrupt Generation Unit 1-4: Reset Unit

1-5: Cockroach eradication signal generator

1-6: Electric circuit control unit 1-7: Status input unit

1-8: Key Input 1-9: Display

The present invention relates to a control process of washing, rinsing and drying of a dishwasher, and more particularly, to a control system of a dishwasher which can be equipped with a smooth operation, a simple washing function, and a cockroach control function using various sensors and an efficient stroke process.

Conventional dishwashers are also designed to wash dishes through the process of washing, rinsing and drying, and to add a soaking function when making a reservation function, but the display process indicating the washing process of the dishwasher is weak so that the user can easily recognize the process in progress. It was impossible to do so, and the calling function was limited to a short time, which made it difficult to make reservations using night power.

In addition, the dishwasher has always had hygiene and cleanliness, but the disadvantage of being a habitat for cockroaches.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a display unit having a finder and a light emitting diode which can easily detect the sensing function and the cleaning process of various sensors, and to give a soak function at the time of reservation. It is intended to provide a control system for dishwashers that can use surplus power at night.

Another purpose is to provide a simple dishwasher with a high frequency of use, which allows one-touch start function to be given and can be restarted immediately even when an error occurs during the washing process.

Another object is to provide a sanitary clean dishwasher by giving a cockroach eradication function to the dishwasher that has become a habitat for cockroaches.

A feature of the present invention is a washing machine for washing, rinsing, and drying a tableware, the display means capable of graphically displaying a selected stroke course, and a surplus key to give a reservation time to use surplus power. A reservation function processing means, a temporary rinse processing means for operating the washer and a one-touch key, and a dishwasher signal generation means for extinguishing cockroaches at the bottom of the washer.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an implementation circuit diagram of the dishwasher according to the present invention, a boost transformer (T ₂ ), fuses (F ₁ ), (F ₂ ), a power supply push switch (PS ₁ ), a heater (HT ₁ ), (HT ₂ ) and configured in a variety of full-length full-length water circuit (1-1), a small transformer (T _1), the regulator (REG _1), (REG _2,), a capacitor (C ₁ -C _4), diode (D _1), (D ₂ ), an AC direct current converter 1-2 for generating reference voltages VA, VB, and VCC is provided.

The electrical equipment of the electrical circuit unit 1-1 includes relay switches for driving the electrical equipment, a washing pump (WP), a drain pump (DP), a water supply valve (FV), a detergent injection device (DT), and a drying fan. (FANs). An interrupt generator 1-3 composed of a transistor TR ₁ and a resistor R ₁ -R ₃ converts a sine wave into a square wave and applies it to the microcomputer MIC, transistors TR ₂ -TR ₃ , and a resistor. (R ₄ -R ₆ ) and a reset unit 1-4 for checking the state of the reference voltage VB with the zener diode ZD ₁ and adjusting the reset state of the microcomputer.

In addition, the cockroach control signal generation unit (1-5) is connected to the zener diode (ZD ₂ ) for the constant voltage through the resistor (R _7- R ₉ ) and the ripple cancellation capacitor (C ₈ ), the diode (D ₂ ) and the capacitor ( C ₉ ) consists of a constant voltage section.

And a state input unit 1-7 for inputting signals such as a door switch DS ₂ , a water level titration switch S / W, an abnormal water level switch ES, and a temperature TH, a water supply valve FV, a heater, and the like. (HT), drainage pump (DP), driver (IC ₂ ), relay (RY _1- RY ₇ ), transistor (TR _4- TR ₅ ) to form a closed circuit to control the electric circuit circuit (1) -6), a key input unit 1-8 receiving keys of soak, simple, course, and drying, and a display unit 1-9 for displaying the state of the key input unit and the progress state of the washing machine.

The display unit 1-9 is composed of a finder FND and a light emitting diode LED to inform the user of the remaining time and the cleaning progress state.

Referring to the standard cleaning process in the present invention configured as described above are as follows.

When push type power switch PS ₁ is connected and power AC is supplied and door switch DS ₁ is connected (door lock), dishwasher is driven by stop key S / P. .

At this time, a part of the AC power supply is rectified by the small transformer T ₁ , the bridge diode BD, and the capacitor C ₁ .

The rectified power is supplied to the reference voltages VA, VB, and VCC through respective regulators REG ₁ and REG ₂ to the circuits of the dishwasher. The reset section 1-4, to which the reference voltage VB is supplied, supplies the charged charge to the capacitor C ₇ , and sends the interrupt generator 1-3 through the secondary side of the transformer T ₁ . When the power source turns the transistor TR ₁ on and off, the interrupt signal of the square wave is input to the microcomputer on the collector side of the transistor TR ₁ .

The finder FND and the light emitting diode LED of the display unit 1-9 are controlled by the My Kong MIC to turn on the corresponding devices to display the operation of the washing machine currently in progress.

At this time, washed with a standard course is selected when, adjusting the Doors position (DS _2), water level sensing proper water level switch (SS), over the switch (ES) for such administration of drainage, water supply, washing, etc. as in the administration jinhaengpyo 2-degree When performing the process, the microcomputer (MIC) detects the open and closed state of the switch and performs the course of the standard course in the programmed order, and performs the draining, watering, and washing processes in the programmed order. Same process as the dishwasher.

That is, the door switch DS ₂ inputs the open and closed states of the door to the microcomputer MIC to perform control accordingly, and inputs the water level of the appropriate level switch SS to the microcomputer.

At this time, when the abnormal water level is detected, the microcomputer MIC displays the value of (OF) with the finder FND, indicating that it is (overpool), and simultaneously discharges water by operating the drain pulp (DP).

The electric circuit unit 1-1 operates the relays RY _{1 to} RY ₇ according to the control signal of the microcomputer MIC, and the water supply valve FV, the washing pump WP, and the heater HT ₁ are operated by the relay. , (HT ₂ ), drain pumps (DP) will be activated.

In addition, the cockroach eradication signal generation unit (1-5) has a structure in which the AC power supply associated with the power supply push switch (PS) is supplied through the resistor (R _7- R ₉ ) and the coupling capacitor (C ₈ ) The power supplied is maintained by a Zener diode (ZD ₂ ) and the power rectified by the diode (D ₂ ) and the capacitor (C ₉ ) to operate the ultrasonic wave generation buzzer (BZ ₂ ), (BZ ₃ ). .

The ultrasonic generating buzzer (BZ ₂ ) and (BZ ₃ ) generate sound waves with different frequencies (f ₁ ) and (f ₂ ), and combine cockroaches (λ ₁ ) and (λ ₂ ) of the ultrasonic wave three times. Used as a kill signal.

In addition, the present invention is able to perform a simple washing process of the washing machine by the input key, which is collected before the whole course of the standard course, strong course, etc. are collected and used for draining, watering, rinsing, The drainage process is carried out as shown in FIG.

In addition, the scheduled washing time by soaking key can be set as desired time from 30 minutes to 4 hours.The time can be changed during pre-washing and soaking, and the bowl is contaminated by spraying water every 20 minutes after the completion of water supply for the selected time. Repeat the process to prevent it.

The present invention that performs the above operation and the field can obtain the following effects.

First, when the reservation function is given a function called by controlling the washing pump for a certain time, the selection time can be selected between 30 minutes and 4 hours, so that surplus power can be used at night.

Second, in the simple rinsing course, which is frequently used, there is an advantage that it can be operated with one touch and immediately restarted even when an error state occurs during the washing process.

Third, the user can easily recognize the indication of the error in the washing state, and can eliminate the cockroaches, thus making the kitchen hygienic.

Claims (4)

In the washing machine for washing, rinsing and drying of the tableware, display means for graphically displaying the selected stroke course, reservation function processing means for using a surplus power by giving a reservation time largely by a boolean key; And a simple rinse processing means having a pause key and a one-touch key for operating the washer, and a cockroach extermination signal generating means for extinguishing the cockroach on the bottom of the washer. The cockroach eradication signal generation unit 1-5 includes the resistors R _7- R ₁₁ , the capacitors C ₈ , C ₉ , and the zener so that a 110 V AC voltage and a 220 V AC voltage are generated regardless. And a diode (ZD ₁ ), a buzzer for generating ultrasonic waves (BZ ₂ ), and (BZ ₃ ), and combining the frequencies of the buzzer for generating ultrasonic waves. The control system according to claim 1, wherein the display unit (1-9) has a finder (FND) which is a group of seven-segment light-emitting diodes (LEDs) indicating an error state, and an error display unit which is restarted after the error is cleared. . The method according to claim 1, wherein the saving course includes a treatment means for rinsing two hot water rinsing and drying after the main washing, a means for lowering the temperature of the main washing and boiling rinsing to a general washing temperature, and two or more cold water rinsing. Dishwasher control system.

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