JPS6194692A - Washing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an automatic washing machine, and particularly to a washing machine in which the amount of water and time for rinsing are determined by measuring the amount of laundry to be washed.

[Background of the invention]

Conventionally, this type of washing machine starts and ends washing by selecting preset washing time, spin-drying and rinsing times, and several levels of washing tank water levels using a selection switch.

In addition, some washing machines are equipped with a separate sensor inside the washing tub to determine the degree of rinsing, and perform automatic rinsing.

The former setting relies on the user's intuition, so there are many variations in the degree of rinsing, and the rinsing step is added again after all steps have been completed, or unnecessary rinsing is performed that the user does not notice. There is a lot of power loss.

For the latter, there is a sensor that makes a judgment based on the degree of light transmission, for example, but it requires one sensor just to judge the degree of rinsing, and it is expensive including the control circuit. Furthermore, since the sensor itself must be placed in water to determine the degree of permeation, it is difficult to maintain the degree of sealing due to work variations. Furthermore, washing machines are prone to deterioration such as changes in light transmittance due to water draining after washing, so-called adhesion of water droplets, etc. If deterioration is accelerated, there may be cases where further rinsing is performed or the rinsing is not completed even if the rinsing is performed in an excessively rinsing state, and the loss of water and power is greater than in a manual selection cycle that is left to the user. There was a problem that resulted in this.

[Purpose of the invention]

In order to solve the above-mentioned problems, the present invention provides a washing machine that automatically performs suitable rinsing without having a special rinsing sensor.

[Summary of the invention]

This is a washing machine that has a so-called cloth amount sensor that determines the amount of laundry to be washed and an automatic detergent dispenser.The amount of detergent is determined based on the amount of cloth measured by this cloth amount sensor. Calculate the amount of water and time for rinsing, and use the appropriate material for the rinsing process.

This is done by determining the rate of dehydration after spin-drying based on the amount of laundry to be washed, and the amount of detergent in that amount is also calculated, so the stirring time and amount of water are determined based on experimental values.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 10. To explain the overall structure of a washing machine with reference to Fig. 1 and Fig. 2, the box-shaped outer frame 1 has legs 27 at the bottom to form side surfaces that are open vertically, and four curved sections at the top. has corner plate 2.

1a is a removable back cover. A top cover 25 surrounds the upper surface of the outer frame 1 and has a laundry load opening 22 with a lid 23. Furthermore, electrical parts such as a detergent container 19, water supply pulp 15, control section 29, selection switch 21, and pressure sensor 18 are housed. 20a is a lid of the detergent container 19, 20b is a detergent inlet, 20 is a detergent presence/absence sensor for determining the presence or absence of detergent liquid, and 25a is a partition plate for partitioning from the washing test.

The frame body formed on the outer frame 1 and the top cover 25 has corner plates 2 at four locations, and suspension rod holders 2.
Hold the stick 3 at 4. The lever rod 3 supports an outer tank 5 by lowering it via a vibration-proofing spring 4. However, here, there are only three push rod receivers 24, and a cloth amount sensor 17 is provided at one corner plate 2 position near the control section 29. 6 is a washing tank, 7 is a stirring blade, 8 is a stirrer, 9
is a motor 8 supported by a protruding shaft)
10 is a drive unit having a clutch, a transmission mechanism, a brake, etc., and 11 is a pulley through which power is transmitted from the motor 8 through a belt 12.

Reference numeral 13 denotes an air reservoir provided on a part of the outer periphery of the outer tank, and a pressure sensor 1 is connected to the upper part of the air reservoir 13 through a pressure transmission tube 14.
81 is connected as an extension. 16 is a drainage pulp, and 28 is a drainage hose.

Figure 2 is a diagram showing the state with the top cover 25 removed.
is connected to the control unit 29 and the waving wire for driving the electric parts 1 such as the motor 8 and the drainage pulp 16 located at the bottom. In this embodiment, the cloth amount sensor 18 is engaged with a push rod located in the upper right corner of the figure near the control section 29.

In this case, the outer tank 5 is suspended by four rods 3, and the suspension rods 3 from which all the motors 8, drive parts 10, etc. are suspended carry 1/4 of the entire load. It means that you are receiving it. In order to measure the weight of the laundry loaded into the washing machine 6, it is accurate to measure the change in the load applied to the washing machine 3 without any uncertainties. To explain using the detailed diagrams of the cloth amount sensor in Figures 3 to 6,
The corner plate 2 has a concave spherical R-shaped receiver in the part 2.
There is a part 5, and the receiver which is approximately the same as the ball R shape is part 5.
8a has a through hole 58d in the center, a slider 53 for engaging with the shank 3, a shank rod storage window 53b and a shank rod receiver 53c at the bottom. The sliding part 53a extended to the top fits into the through hole 58d, the upper end has a threaded part 53d, and the threaded part 53d has an adjustment knob. 40 threaded portions 40a are engaged. A ring-shaped magnetic body 38 is located in a cylindrical portion 40c of the adjustment knob 40, and is supported by a magnetic body locking claw 40b. 46 is a coil spring,
Reference numeral 47 denotes a spring seat, one end of which is located together with the spring seat 47 on the lower surface of the through hole 58d of the support body 58, and the other upper end of which is located at the end of the magnetic material locking claw 42 of the adjusting screw 40. Therefore, the slider 53 can freely slide in the through hole 58d of the support body 58 together with the adjustment knob 40 having the magnetic body 38 against the spring reaction force of the coil spring 46. 33 is a differential transformer and bobbin 36
The primary coil 34, the secondary coil 35, and the electric wire 48
It has a terminal 37 which is connected to the terminal 37. The inner diameter of the bobbin 36 is secured to an outer wall 58b of the support 58, and is locked by a bobbin locking claw 58c. 44 is a protective cover,
Adjustment knob 40. A protective cover locking claw 45 surrounds the outer periphery of the bobbin 37 and is locked and supported by the end of the bobbin 37.

To explain the assembly, washing, and installation of these into the four machines,
Lock the bobbin 37 with a coil etc. on the support 58, pass the slider 53 through the hole 58d, insert the through spring seat 47 and the coil spring 46 from above, and engage the adjustment screw 40 with the magnetic body 38. The zero point of the cloth amount sensor is adjusted in advance using the adjusting screw 40. The suspension rod 3 is attached to the outer tank 5 including the anti-vibration spring 4, and then placed in the outer frame 1. You can either peek out and hook the hanging rod 3t, or conversely, lift the hanging rod 3 up to the top of the corner grate 2 and hook it on the hanging rod holder 24, so you can also hang the cloth amount sensor 17 in the same way. It can engage with the rod 3.

The pressure sensor 18 also has a diaphragm, and has a differential transformer 33 similar to the cloth amount sensor 17, and detects the pressure due to the change in water level transmitted through the pressure transmission tube. As shown in FIG. 9, this is an analog sensor in which the voltage induced in the secondary coil 35 changes linearly with the amount of displacement (deafness) in which the magnetic body 38 approaches the secondary coil 35.

The detergent container 19 is a container made of polyethylene resin or the like that stores liquid detergent, and is powered by a motor or the like (tA<not shown), which forces a certain amount of detergent into the washing tub in response to a signal given. It is an investment.

The functions of a washing machine with the above configuration will be explained with reference to FIGS. It has a power supply circuit for driving, and the pressure cassette 18 and cloth amount sensor 17 pass through a detection circuit and a comparison circuit, and then a selection circuit such as a selection switch 21, a display circuit that narrowly indicates these, and a motor. 8. It has a drive circuit Ut for the water supply valve 15, drain valve 16, etc.

In such a circuit, the washing process is carried out by opening the lid 23, putting in the laundry, closing the lid 23, turning on the power switch and selection switch, and then the cloth weight sensor 17 is driven to measure the weight of the cloth. do. Based on this measured value, a preset amount of water to be supplied into the washing tub is determined, an appropriate amount of detergent is also determined, and the power application time of the detergent supply driving source is determined.

Next, the water supply valve 15 is driven, and the amount of water supplied is sensed by the pressure sensor 18 and stopped at the measured amount. Next, the detergent injection drive source is driven to inject detergent, and then the stirring blades 7 are driven.

Here, if the amount of cloth exceeds the maximum amount that can be washed by the washing machine, the cloth amount sensor 17 notifies the user that the amount of cloth is too large and does not proceed to the next step. The detergent presence sensor 20 is used to monitor this, as detergent is automatically added, so it is not good to proceed to the next process without adding detergent if the detergent runs out. Also, do not proceed to the process.

The pressure sensor 18 converts and detects a predetermined water supply amount, so-called the water level of the water accumulated inside the outside 15, into pressure, closes the water supply valve at a predetermined pressure (water level) K, and proceeds to the washing process, stirring R7. In some cases, the items to be washed become immersed in the water and the water level may drop below the initially set level. There are significant differences depending on the type of laundry, such as denim, denim, etc.
Examples of representative fabric types such as general blended blankets are shown in Figure 10. This allows the movement of the so-called stirring blades 7 to be reduced, for example, by 1
After measuring the water level, the pressure sensor 18 measures the water level again and determines the amount of decrease.The water level is determined by the cloth amount sensor based only on the weight, and then the optimal water level is determined according to the cloth type. (appropriate water level and movement of cloth by agitation blades are optimal).Start the water supply process again. This occurs when the fabric type that causes a large drop in the water level is bulky and light in weight9, and the movement of the fabric is optimized by re-supplying all of the water. There is no need for any action to reduce the water level. Therefore, it is possible to determine the type of cloth, the so-called bulk, which was previously impossible, through two processes: initially measuring the weight with a cloth amount sensor, and then checking the degree of water level drop with a pressure sensor after stirring. It is.

Next, in the rinsing step, the time is automatically set depending on the amount of detergent added. This should be determined by the amount of water used to dilute the amount of detergent and the separation time of the cloth.

FIG. 12 shows an adjustment section that determines the amount of detergent dispensed at one time; when the lever is set to the upper side, the amount of detergent at one time increases. It decreases when the lever is set to the lower side, and the amount in the middle is normal. As the levers are set in their respective positions, the lamps will light up accordingly, making it easy to check the set status.

FIG. 13 shows a switching unit for detergent injection, and when automatic injection is set, a lamp provided near the cancel key lights up. If automatic loading is not required, press the Cancel key. If you want to adjust the amount of detergent to be added, you can select it by pressing the manual key.

〔Effect of the invention〕

According to the present invention, each sensor can automatically determine the appropriate amount of water and detergent to perform automatic operation without changing the conventional washing procedure.

The amount of detergent to be added can be adjusted by operating the lever. Laundry can be done according to the type of detergent, amount of laundry, and type of laundry.

[Brief explanation of the drawing]

Figure 1 is a side cross-sectional view of the main parts explaining the entire layer-breaking machine, Figure 2
The figure is a perspective view showing the outer frame and top cover separated.
Figure 3 is a sectional view of the cloth amount sensor as shown in Figure 4 and 11, Figure 4 is a detailed side cross-sectional view of the cloth amount sensor, Figure 5 is a perspective view of the parts clearly shown in disassembly, and Figure 6 shows the load on the peg rod. Figure 7 is a control circuit diagram of the washing machine, Figure 8 is an input/output circuit diagram of the cloth amount sensor, and Figure 9 is a flowchart explaining the series of steps. It is a diagram. FIG. 12 is a diagram showing a detergent amount adjustment section, and FIG. 13 is a diagram showing a detergent input switching section. 1...outer frame, 25...top cover, 3...stick stick, 711 Nagisu 2r2 7F44昌χ5 已x7 Figure x'1 In Figure χ Group words <ltl, q/S! ! /Nukuimatomi// a 112 Figure

Claims (1)

[Claims] 1. A washing machine with an automatic detergent dispenser, characterized by having an operator that can increase or decrease the amount of detergent dispensed automatically in accordance with the type of detergent.