KR950001921Y1 - Apparatus for controlling draining cycle of tableware washing machine - Google Patents

Abstract

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Description

Multifunctional control device for drainage of dishwasher

1 is a block diagram of the present invention.

2 is a functional diagram of the present invention.

* Explanation of symbols for main parts of the drawings

10: power SW (switch) 20: door SW (switch)

30: watering pump 40: drainage pump

50: operating level pressure SW (switch) 60: overflow pressure SW (switch)

70: leakage SW (switch) 80: overheat prevention device

The present invention relates to a multifunctional control device for drainage of a dishwasher, and to impart various functions to the drainage stroke by draining the residual water accumulated in the sump or collection chamber of the dishwasher by a drainage pump.

In the conventional case, when draining the residual water accumulated in the collection tank or the collection room after washing the dish, it is not possible to check the drainage status or to detect the failure of the pressure SW in the drainage or the water level. It was a malfunction of the washer.

The present invention is applied to the drain pump 40 by the control of the microcomputer (MICOM) to drain the sump or the residual water in order to solve the above problems, after draining for a predetermined time, the operating level pressure SW ( After checking the water level of 50) and draining the water for a predetermined time by applying the power of the drain pump 40, the water level of the operating pump pressure SW 50 by checking the water level to cut off the power to the drain pump 40 drain pump (40) ) To stop the operation, and to detect the malfunction of the operating level pressure SW (50) during the drainage or the leakage to the outside of the water collection tank to cut off the power to the dishwasher to provide multifunctionality in the drainage administration. .

A drain pump 40 which operates to drain the residual water which has been cleaned by MICOM control, and an operating level pressure SW 50 controlled by the peak water level by checking whether the water is drained at the time of drainage, and drainage Overflow pressure SW (60) to cut off the supply of water by detecting it when the water level is abnormal due to a failure of the operating level pressure SW (50) or other factors at the time, and leakage to the sump during drainage The leakage SW 70 to prevent the safety accidents such as short-circuit by detecting a short circuit, the door switch 20 to detect the opening and closing of the door, and the water to the upper and lower rotary body by the discharge pressure of the pump The sprinkling pump 30 for washing and the overheat prevention device 80 for blocking the main power when the heater is overheated due to a malfunction of the heater and the set temperature is additionally connected.

Referring to the present invention in detail based on the accompanying drawings as follows.

FIG. 1 is a block diagram of the present invention to control devices having respective functions by MICOM and to input and output information necessary for the operation of the dishwasher.

In the above control device function, the drain pump 40 receives power from the MICOM and drains the residual water from the collection tank or the collection chamber, and the operating level pressure SW 50 is drained at the time of drainage. It is controlled by the peak residual water, and the overflow pressure SW 60 detects when excessive water level occurs due to the failure of the operating level pressure SW 50 during drainage or other factors. To cut off the supply of water.

In addition, the leakage SW 70 detects the leaked water in order to prevent a safety accident such as a short circuit due to a leakage phenomenon occurring outside the sump during the drainage stroke.

2 is a function of the above control device, the drain pump 40 is powered by the signal to start the drain from the MICOM (MICOM), the operation level pressure SW 50 is returned within 25 seconds. If it is reset by determining whether it is reset or not, the drainage stroke is performed for 30 seconds and the next stroke is carried out under the control of MICOM, and the operating level pressure SW 50 is not reset within 25 seconds. If not, the power is turned off and a service call (SVC Call) alarm is issued to indicate an abnormality.

In this way, it checks the drainage during the drainage stroke and detects the malfunction of the operating level pressure SW (50) or the abnormal water level and the leak occurring during the drainage, thereby giving various functions to the drainage administration function of the dishwasher.

Claims (1)

In the dishwasher having a drainage administration function, a drain pump (40) which operates to drain the cleaned dirt by MICOM control, and an operation of controlling by the peak water level by checking the drainage at the time of drainage. Level pressure SW 50 and overflow pressure SW 60 which detects when excess water becomes an abnormal water level due to a failure or other factors of operating level pressure SW 50 during drainage, and cuts off the supply of water. Multifunctional control device for drainage of the dishwasher, characterized in that the leakage SW 70 to detect the occurrence of leakage to the outside of the collecting duct when draining to prevent a safety accident such as a short circuit.