JPS6264397A - 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 (1) Industrial Application Field The present invention relates to a washing machine that detects the amount of laundry (load i) and disinfects washing operations according to the load amount. 2. Description of the Related Art As shown in Japanese Patent Application Laid-open No. 54-131361, conventional washing machines detect the motor drive current during washing and determine the load value based on this current value. Since there is some variation in L at some point during rG, the average value is obtained for several samplings.

However, the load amount is determined by this average value.

Since this will cause the fycm to progress to some extent, it will be necessary to start with a temporary load amount and replace it after it has been determined.

(c) Problems to be solved by the invention The present invention has a load t during water supply before the actual washing operation begins.
a w +tt 2. This is what we want to detect well.

Four problems? Means for Solving the Problem In the present invention, the water supply time ('rX>
What is the water supply time LTBJ from this water level to the next predetermined water level? 133 means to calculate the water supply time (TX) and the reference time (TS) to set the load tk stage, and set the set load amount. Operation of washing aa etc. according to i 71
;ll consists of means of punishment.

(e)) In other words, the load amount is determined before the washing operation in which the motor is rotated. Specifically, if the load is large, the water level reaches the level where the laundry is soaked, and if it is small, it is slow. Therefore, the water supply time is measured while detecting the water level, the load amount is determined based on this time, and the system is operated accordingly.

Furthermore, the water supply time ζ varies depending on the water pressure of city water at that time. Therefore, we measured the re-watering time to a certain level after the load was fully immersed.

Since this time indicates the water supply capacity at that time regardless of the amount of load, the reference time t at that time is based on this rewatering time.
Ta) i decide. Therefore, since fluctuations in μ city water pressure, etc. are included in the reference time, detection accuracy is improved.

Thus, depending on the load detected, additional water supply time.

Operating conditions such as rotational driving time (required time for each stroke, J1 rotation, daytime reversal cycle, early cut-off time of the dehydration motor, etc.) are set, and the machine is operated according to one condition.

(f) Example To explain it based on the meat aspect, there is a machine frame for a slaughter machine on the mountain.

121μ installed inside the machine frame fi +, 11: water hole (3) outer layer provided on the entire bottom, (4) outside [+21 installed internally, many dehydration holes f5J k inner dimensions provided on the peripheral wall and bottom wall , (61
a fluid balancer attached to the upper opening of the inner dimension (4);
8) The drive motor (9) is the clutch device 5jtk that transmits all the rotations of the drive motor (81). During maintenance, the rotor blade (7) is intermittently reversed through the reduction mechanism, and during dehydration, it is rotated at high speed in one direction together with the inner 1st 141.QfJ is the upper lid, and the former 1po laundry 9IJ input port 12 has a drainage hole. [31 is connected to a drain solenoid valve (13) and a drain hose (141 is formed on the bottom surface of the upper cover 11111, or is formed on another inner cover (not shown) to cover a wide area within the inner Ff+41. This is a water injector that injects water evenly into the shower.

A water supply means for supplying water to inner 1 (4) using the water injection body (141) on the convex pipe [16
1, and a water supply solenoid valve σl inserted in the valve 1.

08 is a water level detection means that detects changes in the water level in the layer, and includes an air drag a9 under the skin, a hose ■ that transmits pressure changes in the air trap, and a semiconductor pressure sensor (2Dt) that changes the output according to the transmitted pressure. - Prepared.

A microcomputer (hereinafter referred to as a microcomputer) as an even means includes a time measuring means such as a counter and at least a calculation means C241, and stores various reference values and conditions.

By inputting signals from this microcontroller frame, various operation keys indicated by symbols, and the water level detection means (a), all the load current detection work described below is executed, and the drive motor (8) is operated under conditions t according to the detected load amount. Drainage I&FI valve [131, water supply solenoid valve ding 2]
The display device (not shown), etc. is sterilized and the operation is executed.

The pre-load detection work and operation operation will be explained in the arrows.

First of all, 1! Insert the Fc substance into +41 and operate the start key. Semiconductor pressure sensor (Jll) before water supply
Output t-t VO) t-f", l:, M water solenoid valve anvi-open, water injection body (14
Water is supplied in a shower-like manner from 1 to wet the entire laundry and reduce the apparent load such as air pockets. When water is supplied in a trench where the entrance of air trap U is hidden, the output changes for the first time and shows tVl)2. Then, the microcomputer 122rc starts time measurement by the time measurement means from the time of this output change, and water supply is continued for the entire time.

When the water level rises enough to submerge the entire washed product even with a large load, the output of the pressure sensor (211) changes to (v2).

That is, the relationship between water level and time changes from a loaded characteristic to a no-load characteristic, and the slope of the characteristic changes. When this slope changes (output (
The water supply time (Tx) up to that point in V2)) is stored in the computer and is stolen from the time measuring means 1231i7rU.Then, another time measuring means or the same time measuring means J: 9 hours Measurement is restarted.At the same time, water supply is resumed and continues, but the relationship between water level and time indicates no-load customization.After a short period of time, the cutting edge of semiconductor pressure sensor +211 changes to (v3). At that time, the time (TB) was detected on the Mazucon c2z and the 1 hour measuring means (231
At the same time as the complete reset, the water supply valve σ is closed, and the microcomputer A21i calculates the time (tk) of city water supply per hour under no load from the TBJ using the calculation means.

The standard time (TB, J (TS2J...) corresponding to each load amount is fully calculated by taking into account the capacity of the inner layer (4), etc.

Fourth, the microcomputer (221 to 1 hour (TxJ and reference time L)
Compare T ) (TS

Detect whether the rank is large, medium, or small.

Also, the time (TxJ is close to the standard time).

Assuming that there is a large amount of washed material and the water level rises in the furnace time, a large load is detected, and the operating operation is executed according to pre-stored operating conditions suitable for each detected load.

・As shown in -, this embodiment detects the load t' during the operation of water supply before actual irrigation work, and the detection operation also corresponds to the water supply capacity of city water, so it is highly accurate. .

In particular, the city water supply capacity t at that time is measured at the re-supply time after t when the urban area is submerged, and based on this, the standard time (TS) is determined, so the detected rt degree increases, and from then on The driver's driving motion can be turned over very appropriately.

(G) Effects of the Invention According to the present invention, since the entire load is simply detected during the washing/If operation, the length of the 9 peaks during the operation time is considered to be undesirable, and the accuracy can be adjusted in response to changes in the water pressure. Because it detects well.

A practical washing machine that can beautify the operation very properly and therefore has less waste? This is something that can be provided.

[Brief explanation of drawings]

1st □□□a is a control block diagram of a washing machine according to the present invention. ? R2 Factor 170-Chart, FIG. 3 is a side sectional view. 14+...Inner tank (Washing tank, (1 tank...Water supply f)
l role, (1 second... water level inspection means, ■... microcomputer (
Control method J, CI! 31...Time measurement + role, t24
J...Performance means.

Claims (1)

[Claims] (1) A means for supplying water to the washing tub into which the laundry is placed, a water level detection means, and a water supply time (T_
X) and the water supply time from this water level to the next predetermined water level (T_
B), a means for calculating a reference time (T_S) based on the water supply time (T_B), and a means for measuring the water supply time (T_B);
_X) and a reference time (T_S) to set a load amount, and control operations such as washing according to the set load amount.