JPH036838B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a fully automatic washing machine with a water supply pump, and particularly relates to a fully automatic washing machine with a water supply pump that has a simple structure, is easy to operate, and is easy for customers to use. .

[Background of the invention]

Traditionally, when drawing water from a source other than the tap, such as in a bathroom, you can use a bucket to directly pour water into the washing tub, or put a commercially available bath water supply pump into the bath, and connect the other end of the hose to the clothes in the washing machine. It was inserted into the inlet to supply water. In either case, a person had to constantly stand next to the washing machine and check the water level while supplying water, which was a hassle. Another method is to use a timer-equipped bath water supply pump to set the time in advance for the water to reach the specified water level in the washing machine, but in this case, the pump may malfunction for some reason, or the pump performance may deteriorate. If the water supply flow rate is low and the pump stops operating before reaching the specified water level, the fully automatic washing machine will not be able to proceed to the next process.
There were cases in which the laundry was not completed no matter how long it took.

[Purpose of the invention]

The purpose of the present invention was to provide a fully-fledged, easy-to-operate, highly reliable, full-fledged system that is easy to operate and that is in view of the above-mentioned circumstances, as more and more households are now using the remaining hot water from their resource-saving folding baths. (Bath water) To provide a fully automatic washing machine with a water supply pump.

[Summary of the invention]

The present invention has a water supply channel and a pump supply channel, a water supply valve is provided in the water supply channel, a water supply pump for pumping is provided in the pump supply channel, a sensor is provided to detect the water level of the washing tank, and operation, and opening of the water supply valve. In a fully automatic washing machine equipped with a water pump, which has an instruction and control unit that controls the operation of the water supply pump, the instruction and control unit instructs the water supply pump to operate while the sensor detects the water level, and from the start of operation of the water supply pump. The system measures the time, and if the water level detected by the sensor does not reach a predetermined value within a certain period of time, the instruction and control unit stops the operation of the water supply pump and opens the water supply valve to switch to water supply using tap water. This is a characteristic feature.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

In Figures 1 and 2, 1 is an outer frame, 2 is a top cover that covers the top surface of the outer frame 1, and 3 is a corner plate that is fixed to the upper four corners of the outer frame 1 and suspends the water tank 4 from four corners. This is supported by 5. A vibration-proof spring 6 is attached to the hanging rod 5 and is formed to absorb vibrations of the water receiving tank 4 during dewatering. 7 is a basket which rotates at high speed during spin-drying to centrifugally spin-dry the laundry. 8 is a motor, and the power of the motor 8 is provided by a belt 9 and a pulley 1.
0 to the clutch reduction unit 11 for deceleration, and the rotor blades 12 are driven to rotate at a low speed. 14 is a water injection hose, 15 is a water injection port A for supplying water from a faucet into the water receiving tank 4, 60 is a hose 59 for supplying bath water from the water supply pump 40 (see Fig. 3), and a hose insertion port 61 Through the water tank 4
The water inlet B16 (see FIG. 4) that supplies water inside the tank is an electronic timer that instructs and controls the operation of electrical components such as the motor 8, the water supply valve 13, and the water supply pump 40. Further, the motor 8 rotates in both forward and reverse directions, and can drive the rotary blade 12 repeatedly in the forward and reverse directions. In FIG. 18 is a drain valve, 19 is a power outlet, 20 is a power switch, 21 is a neon lamp,
22 is a connector. 23 is a pressure sensor,
Reference numeral 24 represents a safety switch, and 25 represents an instruction control unit including the various parts and circuits shown in the figure, and is an LSI element having a calculation function such as a microcomputer. Reference numeral 26 indicates a progress display section composed of light emitting diodes, and 27 indicates a power supply circuit section, which converts alternating current (AC) to direct current (DC) and converts high voltage (AC 100 V) to low voltage (DC 10 V) to power the electronic timer 16. This is the part that makes it.

28 is an oscillation circuit section that supplies a clock to the instruction control section 25; The oscillation frequency of the buzzer 29 is directly supplied to the instruction control section 25. 3
0 is an input signal processing circuit, and input signal bus line 3
1, the signal is transmitted to the instruction control section 25, and 32 is an input switch section, which similarly transmits the signal to the instruction control section 25 via the signal bus line 31. Reference numeral 33 denotes an output signal bus line that transmits signals from the instruction control section 25 to the progress display section 26 and the drive circuit 34. Further, the line 35 is connected to the water supply valve 13 via the connector 22, the line 36 is connected to the forward rotation side of the motor 8, the line 37 is connected to the reverse rotation side, and the line 38 is connected to the drain valve 18.

In the above configuration, when the input switch unit 32 receives an instruction to operate the system in which water is supplied from the faucet during washing, the signal from the pressure sensor 23 is determined, and if the water is not full, the output circuit of the instruction control unit 25 The output signal is amplified and switched by the drive circuit 34 via the bus line 33, and a signal to turn on the water supply valve 13 is issued from the line 35, and the water injection hose 1
Water is supplied from the water inlet A15 through the water inlet A15. When the water is full, the signal from the pressure sensor 23 is switched, the water supply valve 13 is de-energized, and the washing process begins.

Washing is usually done by turning clockwise for 0.8 seconds, pausing for 0.5 seconds,
It is performed in a short period of reversal with a counterclockwise rotation of 0.3 seconds and a pause of 0.5 seconds.
Mechanical force is applied to the washing machine by the action of the rotary blades 12. In the above-mentioned washing method, the washing time can be up to about 12 minutes, but the washing time can be adjusted to be shorter depending on the degree of dirt.

On the other hand, when there is an instruction input to the input switch section 32 to operate the method of supplying water from the water supply pump 40 during washing (bath water), the signal from the pressure sensor 23 is judged, and if the water is not full, the output circuit of the instruction control section 25 is input. , the output signal passes through the bus line 33 to the drive circuit 3.
4, the water is amplified and switched, and water is supplied from the water inlet B60 via the water supply pump 40 from the line 39. When the water is full, the signal from the pressure sensor 23 is switched, the water supply pump 40 is de-energized, and the washing process begins.

In FIG. 3, 41 is a main body case, 42 is a pump booklet, a motor case 43 housing a DC motor 54, a seal 44, and a cord 5.
2. Cord cap 47, cord bushing 48, O-ring 49, and oil seal 50 for preventing water from entering the motor case 43, a cord stopper 53, a zip cover 51, and a bushing press-fitted into the tip of the motor shaft. The runner 46 is formed by insert molding the runner 45. Further, 55 is a suikomiguchi, which also serves to support the pump bookworm 42 inside the main body case. 58 is a net, and 56 is a filter, which collects dirt, hair, lint, etc. contained in the water that enters the suikomiguchi 55, and locks the motor by wrapping it around the runner 46, and the oil seal 5.
This serves to prevent the motor 54 from rusting due to intrusion from zero. 57 is a strainer, which is the base of the entire water pump that supports the filter 56.

However, because the hose 59 of this water supply pump was not fully inserted and fixed into the main body case 41, it came off during operation, and the filter 56
If the amount of pumped water decreases due to clogging, or if the water in the bathtub is extremely low and the water level in the water receiving tank 4 reaches the specified level, the washing operation is instructed to the input switch section 32 and the water is turned off within T minutes. If the water supply valve 13 is not reached, the operation of the water supply pump 40 is stopped and the water supply valve 13 is operated instead to supply tap water to the water inlet A15.
It has become possible to supply more water.

FIG. 7 shows the above contents in a flow chart.

The positional relationship between a bathtub in a bathroom and a washing machine in a typical household is approximately as shown in Figure 5.

l is the length of the water supply hose that connects the washing machine and the bath water supply pump, and in actual use, l≦5m. Furthermore, H is the difference in height between the bottom of the bathtub in the bathroom and the top of the washing machine, that is, the total head of the bath water supply pump, and in actual use it is 0.5≦H≦1.0m. If the amount of water required for one wash in a washing machine is Qol/min, and the flow rate of water supplied from the water supply pump into the washing machine is Ql, then the time t for the washing machine to complete water supply is t = Qo/ It is expressed as Q (minutes). Nowadays, the maximum value of Qo in a fully automatic washing machine is about 60, and the pumping performance of the bath water supply pump in one embodiment of the present invention is as shown in Fig. 6 when H = 1 m and l = 5 m. =11l/
It's a minute. Therefore, the time t until the washing machine starts washing is t=Qo/Q=60/11÷5.45>5. If the filter of the water supply pump is clogged and the flow rate characteristics drop and the water supply time during washing is extremely long, or if there is not enough hot water left in the bathtub to reach the specified water level of the washing machine, please turn off the bath water supply. If the machine is temporarily stopped after T minutes and water can be supplied from the tap water, it will save power, shorten the washing time, or prevent the temperature of the water pump from rising.

Therefore, T≧5 minutes, for example, in the previous example, T=6
If you set it to 1 minute, you can obtain the effect described above.

〔Effect of the invention〕

The present invention has a water supply channel and a pump supply channel, a water supply valve is provided in the water supply channel, a water supply pump for pumping is provided in the pump supply channel, a sensor is provided to detect the water level of the washing tank, and operation, and opening of the water supply valve. In a fully automatic washing machine equipped with a water pump, which has an instruction and control unit that controls the operation of the water supply pump, the instruction and control unit instructs the water supply pump to operate while the sensor detects the water level, and from the start of operation of the water supply pump. The system measures the time, and if the water level detected by the sensor does not reach a predetermined value within a certain period of time, the instruction and control unit stops the operation of the water supply pump and opens the water supply valve to switch to water supply using tap water. This is a characteristic feature.

As a result, the following advantages can be obtained.

When the water supply by the water supply pump is interrupted, the remaining water supply is supplemented by the water supply from the tap, so that the washing operation can be continued to the end without ending halfway.

Since a water supply problem caused by the water supply pump is determined by looking at the water level in the washing tub, a special water supply problem determining device is not required.

Since water is supplied while checking the water level in the washing tub, it is possible to supply water at an appropriate water level.

[Brief explanation of drawings]

Figure 1 is a perspective view of a fully self-cleaning system with a bath water supply pump that is an embodiment of the present invention, Figure 2 is a cross-sectional view of essential parts showing the structure of the fully self-cleaning system, and Figure 3 is a longitudinal cross-section of the bath water supply pump. 4 is an electrical circuit diagram of the components shown in FIGS. 1, 2, and 3, FIG. Lifting height H
= Pumping characteristic curve diagram of the water supply pump at 1 m,
FIG. 7 is a flow chart of the present invention. 7...Washing/dehydration tank, 4...Water tank, 15...
Water inlet A (for tap water), 13... Water supply valve, 16
...Electronic timer, 60 ... Water inlet B (for bath water), 40 ... Bath water supply pump, 54 ... Pump motor, 46 ... Runner, 56 ... Filter, 25 ... Instruction control unit.

Claims (1)

[Scope of Claims] 1 It has a water supply channel and a pump supply channel, the water supply channel is provided with a water supply valve, the pump water supply channel is provided with a water supply pump for pumping up water, and a sensor is provided to detect the water level of the washing tub. setting, operating the washing machine, and opening the water supply valve.
In a fully automatic washing machine with a water pump, which has an instruction and control unit that controls the operation of the water supply pump, the instruction and control unit instructs the water supply pump to operate while detecting the water level with a sensor, and from the start of operation of the water supply pump. The system measures the time, and if the water level detected by the sensor does not reach a predetermined value within a certain period of time, the instruction and control unit stops the operation of the water supply pump and opens the water supply valve to switch to water supply using tap water. Fully automatic washing machine with water pump. 2. In what is stated in claim 1,
A fully automatic washing machine with a water supply pump characterized in that the power switch of the washing machine is automatically turned off when the water level detection value does not reach a predetermined value even after switching to the tap water supply for a certain period of time.