KR100314869B1 - Device and method for supplying water into booster for a dish washer - Google Patents

Abstract

The present invention relates to a rinsing water supply device and a method thereof to a dishwasher booster, in particular, the rinsing water level determination unit 71 in the microcomputer (7) performing the overall control function of the dishwasher through a predetermined program, and rinsing A water temperature judging unit 72, a booster driving command unit 73, a rinsing pump operation determining unit 74, a hydraulic valve driving command unit 75, and a rinsing pump driving command unit 76 are provided, and the initial power is turned on. When the rinse water is at full water level, it detects whether the rinse water is at full water level. If it is not at high water level, it will 'turn on' the water valve, and when it reaches the low water level and the middle water level at the low water level, the burner in the booster will be burned to maintain the temperature of the rinsing water. When the water level of the rinsing water reaches the full water level as a result of the above detection, the water valve is 'off' and the rinsing pump is operated for a predetermined time to perform a rinsing process in which the rinsing water is sprayed into the dish. By controlling the rotation, even if the water in the tank is drained due to the operation of the rinsing pump during the rinsing process, no new water is supplied until the end of the process, so that the rinsing water is maintained at a constant temperature until the rinsing process is finished. Through rinsing power and disinfection power can be significantly improved, as well as drastically improved drying power after rinsing can improve the reliability and productability of the product itself.

Description

Rinsing water supply device to dishwasher booster and method thereof {Device and method for supplying water into booster for a dish washer}

The present invention relates to a rinsing water supply device and a method for supplying a rinsing water to a dishwasher booster, and more particularly, to a rinsing water tank used to fill a washing tank when the initial power is supplied to the dishwasher or to supply water required for a rinsing process. The water supply of the rinsing water is activated through the water level detection method using a carbon rod, so that the new valve can be introduced into the tank only when the water level drops below a certain level, so that the rinsing process is performed even if the water in the tank is drained by the rinsing pump. Until this end, the supply of new water is cut off and the rinsing water temperature is invented to greatly improve the rinsing power and the drying power after rinsing through the supply of rinsing water which maintains a constant temperature until the rinsing process is completed.

In general, a dishwasher has a predetermined volume of washing chamber formed in the casing, upper and lower sliding doors are installed at the upper portion of the washing chamber, and a filter for filtering debris contained in the washing water at the bottom of the washing chamber and a predetermined depth. Washing tank having a rinse, and a heater for maintaining the washing water above a predetermined temperature is installed at the same time rinsing the hot water (ie, rinsing water) heated by the booster, including a washing pump for sending the water in the washing tank to the cleaning nozzle A rinse pump for feeding water to the water nozzle is installed, as well as a motor for detergent and rinse supply, and a pair of washing nozzles for rinsing water and rinsing water to dishware and a pair of rinsing water nozzles, respectively, in the upper and lower parts of the washing chamber. It is installed, the middle portion of the washing tank is configured to be installed a shelf containing various dishes.

Therefore, the user opens the door of the dishwasher, puts the dishes to be cleaned on the shelf, closes the door again, and turns on the power switch, the washing pump is driven for a predetermined time, so that the water in the washing tank is forced by the washing pump. And the washing nozzle is rotated by the water pressure of the water sprayed through the water sprayer, and the dishes on the shelf are washed (that is, the washing process is performed), and then the driving of the washing pump is shut off after a certain time. And the rinsing pump is driven for a predetermined time, so that the rinsing water heated to a predetermined temperature (for example, 85 ° C.) by the booster is forcibly delivered by the rinsing pump, and the rinsing water nozzle is rotated by the water pressure of the water sprayed through the water spray hole. Therefore, the dishes that are put on the shelf and washed first are rinsed (i.e. Said), after that water and moisture that accumulates in the dish and dried through natural drying method (i.e., a drying process is performed).

At this time, the water used for washing and rinsing the dishes is returned to the washing tank after the foreign substances are removed through the filter is used to wash other dishes later.

However, in the conventional dishwasher booster, a ball tower is installed in the water tank so that new water is automatically supplied in response to the operation of the ball tower, so that the water in the tank of the booster during the operation of the rinsing pump in the rinsing step is At the same time as the ball tower descends, new water corresponding to the amount of the ball tower descends and is supplied into the tank, so that the total temperature of the rinsing water decreases in response to the dilution amount of the new water in the rinsing step.

Therefore, the actual temperature of the rinsing water sprayed into the washing chamber through the rinsing pump during the rinsing process is lowered below a predetermined temperature (ie, 85 ° C.) (ie, the temperature at which the rinse cannot be easily released) to the dishware through the rinse water nozzle. As a result of the spraying result, the rinsing power and the disinfecting power are lowered, so that the hygienic stability can not be improved, and there is a problem such that it takes a long time to dry the dishes naturally.

The present invention has been made in order to solve the above problems, when the water supply of the rinsing water in the booster water tank used to supply the water required during the rinsing process drops below a certain level through the water level detection method using a carbon rod Only when the rinsing pump is operated, the supply of new water is blocked until the rinsing process is finished, even if the water in the tank is drained due to the operation of the rinsing pump, so that the rinsing water temperature is maintained until the rinsing process is finished. To provide a rinsing water supply device and a method for supplying a rinsing water to the dishwasher booster, which can prevent a decrease in drying power after rinsing, including a decrease in rinsing power and disinfection power due to supply of rinsing water. Its purpose is to.

The object of the present invention, the rinsing water level determination unit for determining whether the rinse water is full water level in the microcomputer performing the overall control function of the dishwasher through a predetermined program, the rinsing water temperature determination unit for determining the temperature of the rinsing water, rinsing A booster driving command unit for determining whether or not to operate the booster in response to the water level and temperature detection value of the water, a rinsing pump operation determination unit for determining whether to drive the rinsing pump based on the level of the rinsing water, and whether the hydrant valve is driven or not And a rinsing pump driving command unit for directly instructing the driving of the rinsing pump and determining the rinsing water of the booster water tank when the initial power is turned on. Back side) When the water valve is 'on' and water is supplied, it becomes negative when the water level reaches the middle level between the low and full water levels. Proceeding the combustion operation of the burner to a predetermined teonae the temperature of the rinsing water temperature; the method comprising: maintaining (such as 85 ℃) and; When the water level of the rinsing water reaches the full water level, the water valve is 'off' and the rinsing pump is operated for a predetermined time to perform the rinsing process of spraying the rinsing water heated to a predetermined temperature to the dish and then returning to the initial stage. This can be achieved by

Therefore, the water level detection method using a carbon rod drives the hydronic valve only when the water level of the rinsing water drops below a certain level, so that even if the water in the tank escapes due to the operation of the rinsing pump during the rinsing process, Since no new water is supplied until the rinsing water temperature is maintained until the rinsing process is finished, the temperature of the rinsing water is supplied to the rinsing water. Deterioration can be prevented beforehand.

1 is an overall block diagram of a dish washer controller to which the present invention is applied.

2 is a detailed block diagram of a device of the present invention;

3 is a flowchart for explaining the method of the present invention.

Explanation of symbols on the main parts of the drawings

1: Door opening and closing detection unit 2: First water level detection unit

3: 2nd water level detection part 4: Power electronic valve drive part

5 oscillation part 6 reset circuit part

7: microcomputer 8: self-test and optional switch unit

9: washing pump 10: washing pump relay drive circuit

11: rinsing pump 12: rinsing pump relay drive circuit

13: bimetal 14: heater

15: heater relay drive circuit 16: detergent supply motor

17: rinse supply motor 18: display and switch input

19: breaker 20: booster drive circuit

21: Thermistor input circuit 22: Rinse water tank

2a, 2b: Carbon rods for low and full water level detection

71: rinsing water level determination unit 72: rinsing water temperature determination unit

73: booster drive command unit 74: rinse pump operation determination unit

75: receiver receiving command unit 76: rinsing pump drive command unit

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

1 is a block diagram showing the overall block diagram of a dishwasher control unit to which the present invention is applied, and according to this, a door open / close detection unit 1 detecting whether the door is opened or closed through a door switch; A first water level detector (2) for detecting the water level in the washing tank through the pressure switch; The second water level for detecting the water level in the rinsing water tank 22 through the two carbon rods (2a) (2b) are formed to have different lengths so as to detect the low water level and the full water level is installed vertically in the tank 22 The detection unit 3; A hydraulic valve driver 4 for controlling the supply of the washing water and the rinsing water; An oscillator 5 for generating a clock pulse of a predetermined frequency; A reset circuit section 6 for resetting initial predetermined data, programs, and the like; A microcomputer 7 performing overall control of the dishwasher through a predetermined program; A self test and option switch unit 8 connected to the microcomputer 7 to select a self test function; A washing pump relay (9a) driving circuit unit (10) for controlling the driving of the washing pump (9) under the control of the microcomputer (7); A rinsing pump relay (11a) driving circuit unit (12) for controlling the driving of the rinsing pump (11) under the control of the microcomputer (7); A heater relay (14a) driving circuit unit (15) for controlling the driving of the heater (14) connected in series with the bimetal (13) by controlling the microcomputer (7); A detergent supply motor 16 for selectively supplying detergent to washing water under the control of the microcomputer 7; A rinse supply motor 17 for selectively receiving the microcomputer 7 and supplying detergent to rinsing water; A display and switch input unit 18 for displaying various operating signals under the control of the microcomputer 7 and inputting various signals; A circuit breaker 19 for cutting off a power supply voltage during an overload; A booster driving circuit section 20 including a combustion fan driving circuit, an igniter driving circuit, and several magnet valve driving circuits controlled by the microcomputer 7 including a flame detection circuit and the like; It consists of thermistor input circuit 21 which detects the temperature of a rinse water with an electrical signal.

At this time, the amount of water present between the low end of the low water level detection carbon rod (2a) and the low end of the full water level detection carbon rod (2b) is rinsed so that enough to supply the rinsing water required in one rinse process The volume of the water tank 22 and the lengths of the two carbon rods 2a and 2b were set.

That is, the volume of the rinsing water tank 22 and the lengths of the two carbon rods 2a and 2b are designed so that the rinsing water heated to a predetermined temperature is not lowered to the low water level when the rinsing water is sprayed into the dishware in one rinsing process. We do with copying.

Figure 2 shows a detailed block diagram of the apparatus of the present invention, the rinsing water for receiving the output signal of the second water level detecting unit 3 in the microcomputer (7) to determine whether the level of rinsing water level is full water level or heavy water level A water level determination unit 71;

A rinsing water temperature determination unit 72 for determining a temperature of the rinsing water through a signal output from the thermistor input circuit 21;

A booster driving command unit 73 which determines whether or not the booster is operated in response to the rinsing water level and the temperature detection value output from the rinsing water level determining unit 71 and the rinsing water temperature determining unit 72, respectively;

A rinsing pump operation determining unit 74 which determines whether to drive the rinsing pump 11 in response to an output signal of the rinsing water level determining unit 71;

A manual receiver driving command unit 75 which determines whether to drive the manual valve in response to the output signals of the rinsing water level determining unit 71 and the rinsing pump operation determining unit 74;

And a rinsing pump driving command unit 76 for directly generating a rinsing pump 11 driving signal corresponding to the output signal of the rinsing pump operation determining unit 74.

3 is a flowchart for explaining the method of the present invention. According to this, when the initial power is turned on, the rinsing water level determination unit 71 in the microcomputer 7 uses the booster water tank (2b) through the high water level detecting carbon rod 2b. If the rinsing water of 22) is detected as full water level, if it is not full water level, if the water level is 'on' through the power supply valve driver circuit 4, the water level is in the middle of the low water level and the high water level. Conducting a combustion operation of the burner to maintain a temperature of the rinsing water at a predetermined temperature (eg, 85 ° C.);

When the level of the rinsing water reaches the full water level as a result of the detection, the water valve is 'off' and the rinsing pump 11 is operated for a predetermined time to perform the rinsing process of spraying the rinsing water heated to a predetermined temperature to the dish, and then the initial stage. It characterized in that the step consisting of returning to.

The operational effects of the apparatus and method as described above will be described below.

First, the rinsing water level determination unit 71 in the microcomputer 7 performing the overall control function of the dishwasher through a predetermined program is initially boosted when the power is turned on (that is, when the power switch is 'on') the booster water tank. Detecting whether the rinsing water is full water level through the carbon rods (2a) and (2b) installed in the (22), and if the water level is not full, 'on' the water hand valves through the magneto-variable drive command unit 75 and the receiver valve driving circuit unit (4) Water is supplied into the water tank (22).

Subsequently, the rinsing water level determination unit 71 in the microcomputer 7 receives the water level detection signal in the medium water level state (that is, the low water level detecting carbon rod 2a), which is an intermediate level between the low water level and the full water level. In the state where no detection signal is inputted), a predetermined output signal is generated to the booster driving command unit 73 to cause the booster driving command unit 73 to repeatedly burn and extinguish the burner in the booster. In this repetitive operation, the rinsing water temperature determination unit 72 determines that the rinsing water temperature reaches a predetermined temperature (eg, 85 ° C.).

Subsequently, when the rinsing water level determination unit 71 in the microcomputer 7 recognizes that the rinsing water level reaches the full water level, the rinsing water level determination unit 71 outputs a water drift valve 'off' signal to the power receiver valve driving command unit 75 to prevent the inflow of new water. Blocking, the rinsing pump operation determination unit 74 generates a control signal for operating the rinsing pump 11 for a predetermined time, the rinsing water heated to a predetermined temperature through the combustion operation of the burner in the dish through the rinse water nozzle Rinsing process to be injected to be carried out.

That is, in the present invention, even if the water (that is, the rinsing water) in the tank 22 which is already heated to a predetermined temperature or more due to the operation of the rinsing pump 11 in the rinsing process as before, the process is completed. Since new water is not supplied until the rinsing water nozzle, the rinsing water temperature sprayed into the tableware is maintained at a constant temperature until the rinsing process is completed, thereby significantly improving the rinsing power and disinfection power. Even after natural rinsing, the quick drying time can be significantly shortened.

On the other hand, when the rinsing process for a predetermined time is completed as described above, the process returns to the initial stage, replenishes the rinsing water, and then heats again to repeat the process of maintaining the temperature of the rinsing water.

As described above, according to the present invention, the rinsing pump in the rinsing process by driving the hydronic valve so that new water can be supplied only when the rinsing water level drops below a certain level through the water level detection method using a carbon rod. Even if the water in the tank escapes due to the operation of the tank, new water is not supplied until the end of the process, and the rinsing power can be greatly improved by supplying the rinsing water that maintains a constant temperature until the rinsing process is finished. Of course, it can greatly improve the drying power after rinsing, thereby improving the reliability and productability of the product itself.

Claims (2)

Rinse water level determination unit for inputting the output signal of the second water level detection unit 3 in the microcomputer (7) performing the overall control function of the dishwasher through a predetermined program to determine whether the rinsing water level is full water level or medium water level ( 71); A rinsing water temperature determination unit 72 for determining a temperature of the rinsing water through a temperature detection signal input as an electrical signal from the thermistor input circuit 21; Booster driving command unit 73 for determining the combustion and fire extinguishing operation control signal of the booster in response to the level and temperature detection value of the rinsing water output from the rinsing water level determining unit 71 and the rinsing water temperature determining unit 72, respectively. )Wow; A rinsing pump operation determining unit 74 which determines whether to drive the rinsing pump 11 in response to an output signal of the rinsing water level determining unit 71; A manual receiver driving command unit 75 which determines whether to drive the manual valve in response to the output signals of the rinsing water level determining unit 71 and the rinsing pump operation determining unit 74; Rinsing to the dishwasher booster characterized in that it comprises a rinsing pump drive command unit 76 for directly generating a rinsing pump 11 drive signal corresponding to the output signal of the rinsing pump operation determination unit 74 Water supply. When the initial power is turned on, the rinsing water level determination unit 71 in the microcomputer 7 detects whether the rinsing water level of the booster water tank 22 is full water level through the high water level detecting carbon rod 2b, and if it is not full water level, the power electronic valve driving circuit unit ( 4) 'turning on' the faucet valve and turning it into a medium water level, which is a middle water level between the low water level and the full water level, to proceed with the combustion operation of the burner in the booster to maintain the temperature of the rinsing water; When the level of the rinsing water reaches the full water level as a result of the detection, the water valve is 'off' and the rinsing pump 11 is operated for a predetermined time to perform the rinsing process of spraying the rinsing water heated to a predetermined temperature to the dish, and then the initial stage. Returning to the; rinsing water supply method to the dishwasher booster comprising a.