JPH0217021A - Flatware washer - Google Patents

Abstract

PURPOSE:To simplify a working and to stabilize a water level by a method wherein the ambient air is passed through an air trap while water is supplied to a cleaning tank at the beginning. CONSTITUTION:In a washing process during a specified operating-time, a signal is outputted from Po4 by a controller for a washing pump 33, and washing water is ejected into a cleaning room 2 by a washing pump 11 and stored in a cleaning tank 3. On the other hand, a water level in a washing tank 10 is lowered. When the water level is lowered to a water level (B), a hot-water supply valve 13 is opened and the hot-water is replenished. Since lots of water are ejected, however, the water level is surely lowered to a lower position as compared with the position of an air trap 14, and the air is passed through the air trap 14. After the washing process finishes, the washing pump 11 is turned OFF and a cycle counter 36 starts to count. A counting decision device 37 compares its counting number with a preset number, and decides the following process. While cleaning water with a specified temperature is replaced for new, it is stored. In this way, since it is not necessary that the level of the washing water is manually stabilized, its working is simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial application field The present invention relates to a washing process (6) in which tableware is washed by spraying hot water from a washing tank inside the washing room with a washing pump, and a rinsing process outside the washing room. Rinse the tank with hot water and use the pump to clean it
2) Relating to a dishwasher that sequentially executes a rinsing process of rinsing tableware by spraying water inside the dishwasher.

(b) Conventional technology An example of this type of 9 dishwasher is 1) jB54-336
As shown in Publication No. 69, a rinsing tank (booster) is provided outside, and hot water for washing is immediately supplied from the rinsing tank to shorten the washing process during the first washing on day #V. I try to open the candy within the time limit.

Although the conventional example does not show water level detection means in the rinsing tank (booster), normally when the water level drops due to the supply of hot washing water, this is detected and water is automatically supplied to the rinsing tank.

Problems to be Solved by the Invention In the conventional example, the rinsing tank always contains hot water above a predetermined level, and when the water level detection means is composed of an air trap and a water switch, the air Air inside the trap leaks out, causing a change in the predetermined water level.

Therefore, in the conventional example, a water control valve was installed in the water tank, and this was manually opened to drain excess water from the tank and allow the air trap to communicate with the atmosphere.

The present invention simplifies the work and stabilizes the water level by automatically communicating the air trap with the atmosphere during the initial water supply to the cleaning tank.

B) Means for Solving the Problems The solution according to the present invention includes a washing water level detection means for detecting washing water of a predetermined level or more in a washing tank, and a washing pump that detects washing water level detection means during the washing process when there is a washing water level detection coefficient. Activate l;
It consists of a purifying pump control unit, an air trap, a pressure switch, and a rinsing water level detection means that detects rinsing water in the rinsing tank at a level higher than F9r, and a A water supply control unit that stops the water supply, a rinse pump control unit that operates the rinse pump during Susuki-machi, and a rinsing process time that is controlled by one or more Susuki' strokes when the above-mentioned wash water level detection signal is not present. This configuration includes a specific time setting section that changes and sets the water level of the rinsing pump to a specific time such that the water level reaches pF above the air trap.

(e) Operation: At the start of the first stroke or when the power switch is turned on, check to see if the cleaning water in the cleaning tank is above h constant 1/.

Usually, the water is drained after all the washing work on the previous day is completed, so there is no washing water Vi. Then, the stroke control unit advances the stroke without operating the start key.

The cleaning pump is inactive (OFF) during a stroke time of C'.1, for example, about 90 seconds, when there is no cleaning water level sensing component.

The following Susuki process is usually changed to a process time of about 10 seconds or a specific time, and during this specific time, warm water in the rinse tank is injected into the cleaning chamber by the rinse pump,
The water is stored as cleaning water in the cleaning tank.

The cleaning water level can be raised to a light level in this one rinsing process, but taking into account that the temperature of the hot water decreases due to contact with the surrounding area during spraying, it may be done two or more times; in this case, #'i Overflow the previous water from the cleaning tank. This 21)j
The rinsing water after the Jth rinse is the water or hot water replenished in the rinsing tank that is heated or reheated during the next cleaning process.

At certain times, the rinse pump delivers more makeup water, lowering the water level in the rinse tank to below the air trap, which is thus in communication with the atmosphere.

(f) Example To explain the following based on the drawings, Fig. 1 shows a mechanical diagram of the Ichito example of the dishwasher. The lower part of the room 2 is designated as a: purification tank 3. A rack 4 that can be taken out by opening and closing the F'iri is arranged in the middle of the cleaning chamber 2, and a pair of cleaning nozzles 5.5 and a pair of rinsing nozzles 6.6 sandwich the exposed rack 4 from above and below. has been set up.

If there is cleaning water in the tank 3 during the off-shore cleaning process, the cleaning pump 7 circulates and supplies it to the cleaning nozzle 5.5. The cleaning tank 3 is equipped with a hot water pipe/drain valve 8 and a cleaning water level detection means 9 consisting of a liquid level switch and a pressure switch for detecting whether the amount of cleaning water is above a predetermined level.

On the other hand, a rinsing tank 10 is arranged outside the machine, and a rinsing pump 1) supplies rinsing water to the rinsing nozzle 6.6. And this rinse tank 10
Hot water is supplied from a booster 12, which is a water heater or water heater, through a hot water supply valve 13. In order to control the supply of hot water, the rinse tank 10 is equipped with a rinse water level detection means 16 consisting of an air trap 7° 14 located in the middle and a pressure switch 15, and further has a heater 17 for reheating. Here, the water level detection means 16 is as follows.

In particular, it has a hysteresis characteristic, and the pressure switch 15 is turned on when the water level reaches the limit, outputs a rinsing water level detection signal, and maintains this until the water level ES). Heater 17 is thermonutadeto 1
8 to -0FF to O to control the temperature.

Incidentally, the injection amount by the water supply pump 1) is made sufficiently larger than the amount of hot water supplied from the hot water supply valve 13.

In this embodiment, the cleaning pump 7, the rinse pump 1), the hot water supply valve 13, and the heater 17 are electrically controlled.As an example, a microcomputer (hereinafter referred to as a microcomputer) 19 is used to control the cleaning pump 7, the rinse pump 1), and the example shown in FIGS. ) Jl based on Figure 4,
・Explain.

The hot water valve 13 and the heater 17 are connected via the power switch 20.
The trap cleaning bongua and pump 1) are further connected to the power supply via the washer door switch 21.
Microcomputer 19 begged for step-down! A waveform-shaped wave and power are supplied from the pressure section 22 to the flow rate 71.

A hot water supply valve 13, a heater 17, a cleaning bongua, a rinsing pump IIU, and a semiconductor switch 24 each having a trigger means 23 are connected in series.
... are operated by output signals from the output ports Po, -Po4 of the microcomputer 19.

On the other hand, the microcomputer 19VCFi, the cleaning water level detection signal from the cleaning water level detection signal level 9, the rinsing water, the rinsing water level detection code from the detection means 16, the start signal from the start key 25 operated by the user, and the process time 21) ', an adjustment signal from the 1st section key 26 is input.

In order to automatically control the entire operation, the microcomputer 19 includes a stroke control section 27 for advancing each stroke sequentially, a cleaning stroke timer 28, a draining stroke timer 29, and a rinsing stroke timer 3.
0. The process time setting section 31 sets each line time in each timer, and the operation of the cleaning bonga in the cleaning process is performed when the cleaning water level detection signal is input.
f H4-controlled washing/bumping control section 32, rinsing]
rinsing horn 7 that controls the operation of the rinsing pump 1) at
'Control s33, rinsing water level detection signal 1)・4,
Then the hot water valve 13 is turned off! A heater control 835 that basically turns off the hot water supply control unit 34 and the heater 17, a vehicle counter 36 that counts the number of rifles in a series of operations, and a preset count for the contents of this and f cycle counters. In addition to this, a specific time setting unit 38 is configured to change the Susuki stroke time to a slightly longer specific time and determine the "CC".

To explain the operation, first, when the power switch 20 is closed,
The microcomputer 19 checks the input of the wash water level detection signal, and if there is no wash water level detection signal, sets 1 water no 7 lag.

In addition, the input of the rinse water level detection coefficient is constantly checked, and the hot water supply control unit 34 and heater control unit 35 is Pol and PO! control the output of

If there is no water/fish flag, the stroke time setting section 31 sets the time adjusted by the signal from the stroke time adjustment key 26 or the unadjusted standard time to each stroke timer 2B, 29.
．． Set to 30.

If there is no water/fish flag, the stroke control unit 27 waits for a start signal to be input by the start key 25. Since the cleaning tank 3 is empty at the start of work on -day, there is usually a flag (°1°). Then, the stroke time setting section 31 sets a time in each stroke timer 28, 29, and 30, and the specific time setting section 38 changes and sets the stroke time of the rinse stroke timer 30 to a specific time. Then, the stroke control section 27 advances the cleaning stroke timer 28 without causing the cleaning pump control section 32 to output from P o s. In this way, when the washing process is completed without spraying the washing water and the draining process is also completed, the rinsing process (event/now 30) proceeds.

Rinse during this specific time? In step 1, the rinse water is output from Po4 by the rinse pump control unit 33, and the rinse pump 1) injects rinse water into the cleaning chamber 2. This water is then stored in the cleaning tank 3. On the other hand, the water level in the Susuki' tank IO is lowered by ()f of the water level, and just in case, the hot water supply valve 13 is opened to replenish the water. However, since there are many sifters and injection lids, the water level will surely fall below the air trap 14 during the process.
The air trap 14 is communicated with the atmosphere.

When the Susuki process is completed, turn off the rinse pump 1).
L, the cycle counter 36 is added, and the count determination unit 37 sets the counter contents to a preset value, for example @21.
Compare and judge. After 2 cycles, run dry, then add constant temperature wash water and store it while changing it. During the next cycle's washing process and draining step 1), reheat the drained rinse water. When doing ``If(applied to l 2・.

In this way, when the supply of washing water is finished, the counter 36 and "
Waterfish 7 lag ° is cleared, so each timer 28.29
．． 30 and waits for the start key 25 to be operated. When the start signal is input, the stroke control unit 2'l also uses the cleaning pump 7 to control each stroke for the set time and p.
I'm going to run it again.

(G) Effects of the Invention As described above, according to the present invention, the air trigger of the water level detection means of the rinse tank is automatically and reliably communicated with the atmosphere during automatic hot water supply to the cleaning tank, so that the rinse This eliminates the need for manual work to stabilize the water level, and provides a safe and practical dishwasher.

[Brief explanation of the drawings] Figure 1 is a mechanical diagram of the dishwasher according to the present invention, Figure 2 is a diagram of the dishwasher, Figure 3 is a control circuit diagram, and Figure 4 is a diagram of the operation section Φ. This is a flowchart. 2...Washing chamber, 3...Washing tank, 7...Moo cleaning pump, 9...Water level detection means for washing 6, 10...Rinse tank, 1)...Rinse pump. 13... Hot water supply valve, 14... Air track °, 15... Calf switch, 16... Susuki water level detection means, 19... Microcomputer, 27... Number of control parts, 30...・Stopping stroke timer, 32...Ta Jyo Pong fl, lJ Kabe, 33...
Rinse pump control unit, 34...Hot water supply (water) control unit, 3
8...Specific time 1itl setting section.

Claims (1)

[Claims] (1) A washing process in which warm water from a washing tank inside the washing room is sprayed by a washing pump to wash the tableware, and a rinsing process in which warm water from a rinsing tank outside the washing room is sprayed into the washing room by a rinsing pump to rinse the dishes. In a dishwasher that performs the following operations one after another, the washing water level detection means detects washing water of a predetermined level or more in the washing tank, and the washing pump is operated during the washing process when there is a washing water level detection signal. A rinsing water level detection means consisting of a pump control unit, an air trap and a pressure switch, and detecting rinsing water above a predetermined level in the rinsing tank, and a water supply control that stops water supply to the rinsing tank when there is a rinsing water level detection signal. Department and
A rinse pump control unit operates the rinse pump during the rinse process, and when there is no wash water level detection signal, the rinse pump controls the rinse process time to lower the rinse water level below the air trap in one or more rinse processes. A dishwasher characterized by comprising: a specific time setting section that changes and sets a specific time to a certain extent.