KR960013157B1 - Washing machine for crockery and its controlling method - Google Patents

Abstract

The apparatus and method combines a cleaning part integrally with a water drainage part, and regulates the quantity of the water drainage by controlling the supply electric power. The apparatus comprises: an inner chamber(1) containing the dishes; a nozzle(2) spraying cleaning water(3); a cleaning pumper(4) pumping water for the nozzle(2), and discharging waist water via a drainage water pipe(8); a bellows(9) selectively blocking one among the cleaning water pipe(7) and the drainage water pipe(8); an elastic spring(1) connected between the bellows and a magnet(6); the magnet(6) driving the bellows(9); a micro computer(21) controlling the cleaning pumper(4) and the magnet(6).

Description

Dishwasher and Control Method

1 is a block diagram of a dish washing machine according to the prior art.

2 is a block diagram of a control device of a dish washing machine according to the related art.

3 is a flow chart showing a control method of a dish washer according to the prior art.

4 is a block diagram of a dish washing machine according to the present invention.

FIG. 5 is a detailed configuration diagram of the FIG. 4 washing pump and each flow path.

6 is a block diagram illustrating a structure of a dishwasher control device according to the present invention.

7 is a control voltage waveform diagram of a FIG. 4 cleaning pump.

8 is a flowchart illustrating a method of controlling a dish washing machine according to the present invention.

* Explanation of symbols for main parts of the drawings

1: inner tank 2: nozzle

3: washing water 4: washing pump

5: drain pump 6: switching magnet

7: washing flow path 8: drainage flow path

9: bellows 10: return spring

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher, and more particularly, to a dishwasher and a method of controlling the same, in which the washing unit and the drainage unit are integrated and at the same time, the supply power is adjusted to properly adjust the drainage amount during drainage.

As shown in FIG. 1, a conventional dishwasher includes an inner tank 1 for storing dishes, a nozzle 2 for spraying washing water 3, a washing pump 4 for washing dishes, It consists of a drain pump (5) and a drain passage (8) for drainage, wherein the washing pump (4) and the drain pump (5) are independently separated.

In order to drive the dishwasher, as shown in FIG. 2, the input unit 13 for the user's selection, the display unit 12 for displaying the user's selection or washing status, cleaning completion or failure, and the like, Controlling the operation of all of the components, a sensing unit 14 for sensing the height or temperature of the water, a power supply unit 16 for supplying power, an oscillation unit 15 for allowing the actual water to wash the dishes, and The control device consisting of a microcomputer 11 and a pump pump driving unit (18, 19) for driving the washing pump and the drain pump is used, the cleaning method will be described as follows with reference to FIG. .

First, when the power is supplied and a predetermined amount of water is supplied to the inner tank according to the user's selection, the water supply is stopped and the washing pump is driven to perform the washing. When the washing is completed, the driving of the washing pump is stopped and the washing pump and Drainage is performed by driving an independent drain pump.

However, such a conventional dishwasher is constructed and installed separately from the washing pump and the drain pump separately to reduce the price competitiveness by increasing the price of the product, difficult to transport and packaging due to the large volume of the dishwasher, There is a problem that cannot be used.

Accordingly, an object of the present invention is to provide a dishwasher capable of reducing the volume and the price of the product by unifying the washing pump and the drain pump in order to solve the above problems, and to switch the washing and drainage as necessary.

Another object of the present invention is to provide a control method of a dishwasher which can effectively wash dishes using the dishwasher.

The dishwasher of the present invention for achieving the above object is a washing pump for washing and draining the dish, a washing passage connecting the inner tank and the washing pump containing the dish, and connected to the washing pump together with the washing passage to wash dishes Comprising a drainage passage for draining the washed water after completion, and the switching unit for selecting to open only the washing oil when washing, and to open only the draining oil when draining.

The control method of the dishwasher of the present invention for achieving the above another object, the process of first stopping the water supply and washing when the water supply is completed up to the set water level, and when the cleaning is completed, the washing flow path is blocked at the switching unit and drained Selecting a flow path to discharge the contaminated washing water to the outside, and controlling the number of rotation of the washing pump according to the washing course to prevent the flow of the washing water contaminated by the drainage or washing of the drain outlet to the outside It is characterized by.

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

As shown in FIG. 4 and FIG. 5, the dishwasher of the present invention includes an inner tank 1 for storing dishes, a nozzle 2 for spraying the washing water 3, and a washing oil for washing dishes. It raises the washing water to the nozzle through the washing pump, and the washing pump 4 for discharging the contaminated washing water through the drainage flow path 8 after the washing, and selectively expands and closes the flow path that is actually integrated by the applied pressure. Bellows 9 for opening the cleaning passage 7 and draining passage 8 by opening, a switching magnet 6 for switching the bellows 9, and the bellows and switching magnet It consists of a return spring 10 which is a return elastic body connected therebetween, and the washing pump and the switching magnet are controlled by the microcomputer 21 as shown in FIG.

Referring to the overall control method of the dishwasher with reference to FIG. 8, first, when the water supply to the set water level in the inner tank 1 is completed, the water supply is stopped and the washing is performed at the same time.

At this time, since the bellows 9 blocks the drainage passage 8 by the return export 10 and only the washing passage 7 is opened, the washing water 3 of the inner tank is driven by the washing pump. It is sprayed through the nozzle 2 via the washing flow path.

Subsequently, when the washing by the method described above is completed and the drainage stroke is started, the polluted washing water of the inner tank 1 is blocked by driving the switching magnetron in the microcomputer 21 of FIG. 6 to move the bellows to block the washing flow path. Is discharged to the outside through the drainage channel.

At this time, since the washing pump is configured to satisfy the strong water pressure to increase the spraying force, when the nozzle is normally driven, the washing water through the drain flow path is discharged to the outside at a high speed. Accordingly, the drain is removed or contaminated washing water is discharged. In order to prevent this, in order to prevent this, during the drainage, if the washing course is a standard according to the washing course, the conduction angle of the voltage applied to the washing pump is set to θ1 as shown in FIG. Therefore, when rapid drainage is needed, the drainage rate is increased by increasing the rotational speed with the conduction angle θ2.

As described above, according to the present invention, the washing pump and the drain pump are united, and the washing and draining can be switched, the drainage is adjusted by adjusting the conduction angle of the voltage applied to the washing pump, and the volume and the product price are adjusted. There is an effect that can be reduced.

Claims (4)

A washing pump for washing and draining the dish, a washing passage connecting the inner tank containing the dish and the washing pump, and a draining passage connected to the washing pump together with the washing passage to drain the washed water after the dish washing is completed. , The dishwasher comprising a switching unit for selecting to open only the washing oil when washing, and to open only the draining oil when draining. In the first groove, the switching portion is expanded by the pressure applied to the bellows to selectively open only one side by blocking the actual washing flow path and drainage flow path, the switching magnet for switching the bellows, between the bellows and the switching magnet A dishwasher comprising a return elastic body connected to the dishwasher. When the water supply is completed up to the set water level, the process of stopping the water supply and cleaning, and when the cleaning is completed, the cleaning flow path is blocked at the switching unit and the drainage flow path is selected to discharge the contaminated washing water to the outside and at the same time, And controlling the number of rotations of the washing pump to prevent the washing water contaminated by the discharging or washing of the drain hole. The method according to claim 3, wherein the conduction angle of the voltage applied to the washing pump is adjusted by adjusting the rotation speed of the washing pump.