KR0141764B1 - Watering Equipment of Dishwasher - Google Patents

Abstract

The present invention relates to a water supply device for a dishwasher, and a conventional dishwasher has a problem of consumption of washing water due to unnecessary water supply and a long washing time, which is installed on one side of a washing tank and stores a preliminary washing water: A washing tank side water pipe, which is a passage for supplying the washing water of the water tank to the washing tank, and a water supply valve installed therein: closing the water supply tank side water valve when supplying the washing water of the washing tank, and washing water supply valve with the washing tank side: Close the water supply valve, open the water tank on the washing tank, and supply the prewash water from the water tank to the washing tank. When the water supply to the washing tank is completed, the water tank on the washing tank is closed, and the water tank on the water tank is opened to supply the prewash water into the water tank. Providing the present invention constituted by a water supply valve opening and closing means to provide a constant three Is always a certain amount is used because the amount of the determined can be one such that the amount of the reduction can be used.

Description

Watering Equipment of Dishwasher

Longitudinal sectional drawing which shows schematic structure of the dish washing by the prior art of FIG.

2 is a perspective view of a dish washer equipped with a water supply device according to an embodiment of the present invention.

3 is an operation of the device of the present invention.

4 is a block diagram of another embodiment of the present invention.

5 is an enlarged view of a portion A of FIG.

6 is a block diagram of another embodiment of the present invention.

7 is an enlarged view of a portion B of FIG.

8 is an operation diagram of the embodiment of FIG.

(A) State diagram at normal water level.

(B) is state diagram at storage level.

* Explanation of symbols for main parts of the drawings

21: water supply tank 22: U magnetic pipe

23: washing tank side water supply pipe 24: water tank side water supply pipe

25: Feed water tank side feed valve 26: Micro switch bar

27: micro switch 28: washing tank water supply valve

31 32: Water detection sensor 41: Micro switch

42: float

The present invention relates to a water supply device of the dishwasher, and in particular, to control the water supply of the washing water uniformly, and to prepare the washing water to be used for the next washing during the washing to increase the water temperature of the washing water prepared by the elevated heat of the washing tank to reduce the washing time The present invention relates to a water supply device for a dishwasher, in which noise is reduced.

In the conventional dishwasher, as shown in FIG. 1, when the washing is started, the water supply valve 13 is opened so that the washing water W is introduced into the washing tank 1 from the water pipe (not shown). W) accumulates at the sump 8.

When a certain amount of washing water is supplied to reach the water level position of the pressure chamber 10, the air in the pressure chamber 10 is compressed, and the water level detection pressure switch 11 detects the frequency change and stops water supply under the control of the microcomputer. The washing process proceeds.

The washing process generally proceeds in the order of pre-rinse main rinse 1 rinse 2 heat rinse drying, and a predetermined amount of washing water is supplied to each process to perform washing or rinsing, and then the draining operation is repeated.

In particular, when the washing water temperature at the time of the basic washing is 57 or more so that the heater 3 is operated to wash and sterilize the dirt during the main cleaning and the heating rinsing, the water temperature of the washing water at the time of the heating rinsing becomes 70 or more. In order to increase the temperature of the washing water takes a lot of time, there is a disadvantage that the washing time is long.

As described above, in the dishwasher, when the water supply valve 13 malfunctions during water supply and water is continuously supplied, the frequency of the pressure switch 11 reaches the abnormal water frequency to detect that the water level is abnormal and an abnormal alarm sounds. The operation of the dishwasher is suspended and the operation is stopped.

However, in such a conventional dishwasher, the frequency of the pressure switch 11 is adjusted so that 5 liters of washing water is supplied in each process, but the malfunction of the water supply increases to 7 liters due to the error of the pressure switch unit and the product. This occurs, there is a lot of problems of unnecessary washing water consumption.

In addition, in each process, as new washing water is continuously supplied from the water pipe after washing and draining, it takes a long time to heat the tap water from the low temperature to 70, which is the heating rinsing temperature, especially when heating and rinsing, and thus the overall dish washing time becomes longer. There was a downside.

In the drawings, reference numeral 2 is a spray arm, 4 is a cleaning pump, 5 is a drain pump, 6 is a drain pipe, 7 is a cleaning pipe, 9 is a pressure pipe, 12 is a water supply pipe.

The object of the present invention devised in view of the various problems as described above is to adjust the water supply of the washing water constantly, and to prepare the washing water to be used for the next washing during the washing to increase the water temperature of the washing water prepared by the elevated heat of the washing tank. To shorten the cleaning time.

In order to achieve the object of the present invention, a water supply tank is installed on one side of the washing tank and the preliminary washing water is stored: a washing tank side water pipe which is a passage for supplying the washing water of the water supply tank to the washing tank, and a water supply valve installed therein; The water supply side of the water supply tank, which is a passage through which water is supplied, and the water supply valve installed therein: When the washing water is supplied to the washing tank, the water supply valve side is closed, and the water supply valve of the washing tank is opened to supply the preliminary washing water of the water supply tank to the washing tank. When the washing tank side water supply valve is completed, the water supply device of the dishwasher is provided, characterized in that the water supply valve opening and closing means for supplying the preliminary washing water into the water supply tank by opening the water supply side valve.

Hereinafter, the present invention as described above will be described in more detail based on one embodiment shown in the accompanying drawings.

2 is a perspective view of a dish washer equipped with a water supply device according to an embodiment of the present invention, Figure 3 is an operation of the device of the present invention, as shown therein, water supply device of the dish washer according to the present invention The water tank 21 is provided on the side of the washing tank 1, the U-shaped pipe 22 is connected to one side of the water tank 21.

In addition, the U-pipe 22 of the water tank is connected to the washing tank side water supply pipe 23 for supplying the washing water to the washing tank 1, the other side of the water supply tank 21, the water supply tank side water supply pipe to which the pre-wash water is supplied to the water tank. 24 is connected, and the water supply pipe 24 is provided with a water supply valve 25.

In particular, the washing tank side water supply pipe 23 is provided with a micro switch bar 26 which is operated according to the water supply flow in the water supply pipe, and the micro switch 27 is provided.

The microswitch 27 is typically used in which the microswitch bar 26 is under the force of keeping the microswitch bar 26 off by means of a self-contained spring (not shown).

20 is a product case.

In the operation of the water supply device of the dishwasher according to the present invention configured as described above, when washing is started, the water supply side valve 25 of the water supply tank is opened so that the washing water flows into the water supply tank 21 from the water pipe, and the washing water of the water supply tank 21 is performed. When the normal water level is reached, a siphon phenomenon occurs in the U tube 22, and the washing water in the water tank 21 is supplied to the washing tank 1 through the washing tank side water pipe 23 along the U tube 22. At this time, the washing water passing through the U-shaped tube 22 moves the micro switch bar 26 to operate the micro switch 27 so that the water supply valve side water supply valve 25 is closed. Not watered

When all the washing water in the water supply tank 21 is supplied to the washing tank 1, the micro switch bar 26 is returned to its original position (dotted line position in the drawing), and the washing by the washing pump 4 proceeds again at the same time. The water supply valve side water supply valve is opened and stopped after the new washing water is supplied to the storage water level in the water supply tank 21. The action of returning the micro switch bar 26 to its original position is not to use a separate component but to return to the original position by a spring embedded in the conventional micro switch 26.

When the washing is finished, and all the washing water in the washing tank is drained, the water tank side water supply valve 25 is opened to introduce a new washing water into the water tank 21, whereby the washing water already stored in the water tank 21 is washed. 1) the water supply to the washing tank (1) is completed in the same process as described above, another new washing water is supplied to the water storage tank 21 to the storage water level, and the preliminary washing water is always supplied to the water supply tank (21). Will be maintained.

Here, the heat of the washing water supplied to the washing tank (1) in the washing process is transferred to the water supply tank (21) in contact with the washing tank (1), preheating the pre-washing water pre-watered in the water supply tank (21), and preheating at a later heat rinse By supplying the prepared pre-washing water to the washing tank 1, it is possible to shorten the heating time.

4 and 5 show another embodiment of the present invention, which is provided with means for maintaining a pre-clean water storage state of the feed water tank. 4 and 5, the water supplied to the water supply tank 21 by installing a sensor 31 for detecting the normal water level and a sensor 32 for detecting the storage water level in the upper portion of the water supply tank. When the water level is reached, the two sensors 31 and 32 are wetted with water, and the resistance applied to the sensor is changed. Therefore, this value is read from a microcomputer (not shown), and the water level valve of the washing tank is detected by detecting the normal water level. At the same time as the 28 is opened, the water supply tank side water supply valve 25 is closed to supply water to the washing tank 1, and as the washing proceeds, the washing tank side water supply valve 28 is closed, and the water supply tank side water supply valve 25 is It is opened so that water is supplied to the water tank 21 up to the storage level.

6 and 7, a float 42 having a micro switch 41 is installed on the upper surface of the washing water W in the water supply tank to supply the washing water to the water supply tank 21. When the float 42 floats with buoyancy, the micro switch 41 installed on the float 42 is operated to open the washing tank side water supply valve 28 and at the same time the water tank side water supply valve 25 is closed. After the completion of the water supply to the washing tank 1, the washing proceeds and at the same time the washing tank side water supply valve 28 is closed and the water tank side water supply valve 25 is opened to supply water to the water supply position inside the water tank side 21.

As described above, since the amount of the constant washing water supplied to the water tank is determined, a constant amount of water is always used, thereby reducing the amount of water used.

In addition, since the pre-washing water is supplied in advance during the washing process, the water supply time supplied to the washing tank is shortened, and the heat of the high temperature washing tank in the washing tank is transferred to the water supply tank adjacent to the washing tank during the washing process. Since preliminary washing water supplied to the tank is preheated and the temperature is being raised, the heating time is reduced when rinsing later. On the other hand, the water supply tank installed on one side of the washing tank acts as a shielding membrane during washing, which also has the effect of reducing noise.

Claims (4)

A water tank installed at one side of the washing tank and storing the pre-wash water: A washing tank side water supply pipe, which is a passage for supplying the washing water of the water tank to the washing tank, and a water supply valve installed therein: A water supply tank side water supply pipe, which is a passage through which the pre-wash water is supplied to the water supply tank, and a water supply valve installed therein: when the washing water is supplied to the washing tank, the water supply valve side is closed and the water tank valve is opened to supply the preliminary washing water of the water supply tank to the washing tank. When the water supply to the washing tank is completed, the washing tank side water supply valve is closed, the water supply device of the dishwasher, characterized in that the water supply valve opening and closing means for supplying the preliminary washing water into the water supply tank by opening the water supply side valve. According to claim 1, wherein the water supply valve opening and closing means is connected between the water supply tank and the water tank of the washing tank and the U-shaped tube for flowing water when the water level of the preliminary washing water of the water supply tank is stored, and when the normal water level When the water is supplied to the water tank of the washing tank through the U-pipe, the water tank of the water tank is opened, and after the water is completely supplied to the water tank, the water tank of the water tank is opened again to supply the preliminary washing water to the storage tank up to the storage level. Water supply device for a dishwasher, characterized in that consisting of a micro-switch bar and a micro-switch operated by it. The water supply valve of claim 1, wherein the water supply valve opening and closing means includes a water detection sensor having two different resistance values installed at a normal water level portion in the water supply tank, and the water supply sensor is supplied to the washing tank by the water detection sensor. Closes the water tank of the washing tank, opens the water tank of the washing tank, and closes the water tank of the washing tank after opening of the water tank, and opens the water supply valve of the water tank to supply pre-wash water to the storage pipe up to the storage level. Watering device of the dishwasher, characterized in that. The water supply valve opening and closing means of claim 1, wherein the water supply valve opening and closing means floats on the upper surface of the preliminary washing water of the water supply tank, and is operated by the float when the water level of the water supply tank is at the normal level. The water supply valve of the washing tank is opened to supply the washing water to the washing tank, and after the supply of the washing water is completed, the washing tank side water valve is closed, and the water tank side water valve is opened to supply the preliminary washing water into the water tank. Water supply of dishwasher.