JPS60106491A - Automatic washer - 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 INDUSTRIAL APPLICATION The present invention relates to a fully automatic washing machine for general household use, which has a sensor function and automatically selects an appropriate rinsing method.

Conventional structure and its problems In the rinsing method of conventional fully automatic washing machines, multiple courses are set in the timer cycle, for example, standard 1 saving 1 powerful course, and the strength of the rinsing water flow and rinsing The time is set. Conventionally, the user has set the rinsing rate based on experience and intuition, depending on how dirty the clothes are, the amount of clothes, and the quality of the clothes. In such cases, it cannot be said that rinsing is performed appropriately for the degree of dirtiness of the clothes, the amount of clothes, and the quality of the clothes, resulting in damage to the clothes or insufficient rinsing.

Purpose of the Invention The present invention eliminates the above-mentioned conventional problems and automatically selects an appropriate rinsing method according to the amount of clothes to be washed, how dirty they are, and the quality of the clothes, thereby reducing fabric damage and reducing To provide a fully automatic washing machine which solves the problem of insufficient rinsing.

Structure of the Invention The automatic washing machine of the present invention includes a turbidity detection means for detecting a change in turbidity of the washing liquid, and a turbidity discrimination means for determining whether the turbidity change has decreased to a certain value based on the output of the turbidity detection means. and rinsing method determining means for determining the rinsing method from the output of the turbidity determining means and the rinsing method data stored in the storage means;
It is equipped with a control means for determining the rinsing method and controlling the pulsator driving means according to the determined rinsing method using the output of another means as an input, and a control means for controlling the pulsator driving means according to the determined rinsing method. The appropriate rinsing method is automatically selected.

DESCRIPTION OF THE EMBODIMENTS FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. Reference numeral 1 denotes a turbidity detection means for detecting a change in turbidity of the washing liquid in the tank. 2 detects the change in turbidity detected by the turbidity detection means 1, and determines that the turbidity change has decreased to a certain value;
Turbidity determination means detects the end of washing, 3 is a memory means, and 0N- of the pulsator which rotates forward and backward during the rinsing process.
04 in which data regarding the OFF time and the rinsing time is stored is the 0N-OFF time of the pulsator in the rinsing step, based on the output of the washing time determined by the turbidity determining means 2 and the data of the storage means 3. Alternatively, rinsing method determining means determines the time etc. of the rinsing step, and 6 is a control means that controls the water supply valve drive means 6 to open and close the water supply valve, thereby controlling the inflow of water into the washing and dewatering tank. . This control means 6 inputs the output of the rinsing method determining means 4, and controls the pulsator drive means 7 according to the determined rinsing method to control the forward and reverse rotation of the pulsator in the rinsing process and the ratio of rotation and stop times. It is configured to change the water flow and control the strength of the rinse water flow.

2 and 3 show the specific structure of this embodiment. Reference numeral 8 denotes a washing and dehydrating tank, and a pulsator 9 is provided at the inner bottom, and the pulsator 9 is rotated by a pulsator driving means 7. It is configured on 6 pages. 10 is an outer tank, and the outer frame 1 is
2 is suspended. The turbidity detection means 1 for detecting the turbidity of the washing liquid in the outer tub 10 is composed of five light-emitting elements 13 and a light-receiving element 14 facing them, as shown in FIG. It is installed in the drain passage.

16 is a drain cock of a drain passage provided at the bottom of the outer tank 10.

16 is a microcomputer, which uses a built-in program to determine changes in turbidity in the outer tank 10, determines the rinsing method accordingly, and generates signals for driving the water supply valve and the pulsator 9. . The microcomputer 16 includes a storage section 161L that stores the rinsing method, an input section 16b that inputs the output of the light receiving element 14, an output section 160 that outputs control signals to the water valve driving means 6 and the pulsator driving means 7, and the storage section. 16a1 is composed of a human power section 16b and an arithmetic control section 16d that controls the output section 160 and performs data comparison operations and the like.

17 is a water supply valve.

Next, the operation of this embodiment will be explained. FIG. 4 shows the main part of a flowchart under the control of the microbage computer 16. After putting the laundry and detergent into the washing and dewatering tank 8, a switch is operated to start washing. With this operation, the microcomputer 16 opens the water supply valve 17 via the water supply valve driving means 6 using the steering knob 18 to supply water. When water is supplied to the set water level, the process moves to step 19 and washing begins. In step 2o, the turbidity of the washing liquid is detected at regular intervals during the washing process by a turbidity detection means 1 comprising a light emitting element 13 and a light receiving element 14 provided at the bottom of the outer tub 1o.
Detected by. And turbidity determination means 2 in step 21
If the difference between the n-1st turbidity detected by the turbidity detection means 1 and the nth turbidity detected by the turbidity detection means 1 is equal to or greater than a certain value, the process returns to step 2 and the n+1st turbidity detection is performed. Let's do it. Then, in step 21, it is again determined whether the difference in turbidity between the nth and (n+1) times has become less than a certain value.

In this way, it is determined whether the change in turbidity of the washing liquid has become below a certain value, and when the change in turbidity has become below a certain value, the microcomputer 16 in step 227 rotates the pulsator 9 by means of the pulsator drive means. and finish washing. Next, the time from the start of washing until the end of washing is determined by the turbidity determining means 2, that is, the washing time, is input to the next rinsing method determining means 4. Step 2
In step 3, the rinsing method for the next rinsing process is determined by comparing and determining the data stored in the storage means 3.

This storage means stores the washing time in the rinsing process according to the washing time detected by the turbidity determination means 2. It is memorized to change the strength of the water flow. For example, during rinsing, the pulsator 9 repeats forward and reverse rotation, and a rest period is provided between the forward and reverse rotations. Several types of water flow are memorized by changing them. In addition, the rinsing time in the - times rinsing step is, for example, 1 minute, 2 minutes, 3 minutes.
It is also possible to change it to minutes. As described above, data for driving the pulsator 9 to change the strength of rinsing according to the washing time is stored in the storage means 3.

Figure 6 shows how clothes are washed under various conditions during the washing process (
−) Shows the turbidity change in this case. If the clothes are lightly soiled, B is the case if the clothes are moderately dirty, and C is if the clothes are heavily soiled or there are many stains. In the case of a person, since there is little dirt, the washing time detected by the turbidity determining means 2 is short. If <tC, the dirt is large and the washing time detected is long.

In other words, items that take a long time to wash, such as work clothes, should be rinsed with a strong stream of water. On the other hand, items that require a short washing time include, for example, clothes such as cutter shirts. Rinsing such items with a strong stream of water will damage the fabric, so it is better to rinse them with a weak stream of water.

Therefore, in step 23, it is determined that if the washing time is long, 1d1 should be rinsed with strong water current, and if the washing time is short, the washing should be rinsed with weak water current. Next, steps 24a and 24b
, 24Q, the water supply 9 pager 16 controls the pulsator driving means 7 to drive the pulsator 9 in step 25a, weak rinse, step 25b, standard rinse, and step 250, strong rinse, depending on the washing time. Rinse. After rinsing, move on to the next step. Here, the 1-rinse method is divided into three types, but it goes without saying that it is easy to think of a more detailed classification.

According to the above embodiment, it is no longer necessary for the user to judge the rinsing method depending on the degree of dirt on the clothes to be washed and the type of the clothes, and it is possible to perform rinsing according to the clothes to be washed, thereby eliminating damage to the clothes. It is possible. In the embodiment, a one-tub type washing machine has been described, but it is obvious that the present invention can also be applied to a two-tub type washing machine.

Effects of the Invention The automatic washing machine of the present invention includes a turbidity detection means for detecting a change in turbidity of the washing liquid, a turbidity determination means for determining when the turbidity change has decreased to a certain value, and a turbidity determination means for determining when the turbidity change has decreased to a certain value. A rinsing method determining means determines the rinsing method from the output and the rinsing method data stored in the storage means, and the output of the rinsing method determining means is used as input, and the pulsator Since the washing machine is equipped with a control means for controlling the driving means, it is possible to perform rinsing according to the type and amount of clothes to be washed. In other words, it is an excellent automatic machine that eliminates the troublesome and erroneous operation of setting the rinsing method by the user, and always provides a good rinsing effect without damaging the clothes being washed. It can provide washing machines.

[Brief explanation of drawings]

Fig. 1 is a block diagram of the main parts of an automatic washing machine showing an embodiment of the present invention, Fig. 2 is a diagram showing its specific configuration and circuit, Fig. 3 is a cross-sectional view of the turbidity detection means, and Fig. 4 The figure is a flowchart showing the operation of main parts, and FIG. 6 is a characteristic diagram showing changes in washing liquid turbidity of an automatic washing machine in an embodiment of the present invention. 1... Turbidity detection means, 2... Turbidity discrimination means, 3... Memory means, 4... Rinse method discrimination means, 6...・Control means, completed...Pulsator drive hand suction, page 8...11 Washing and dehydration tank, 9...Pulsator, 16...
...Microcomputer. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 4 Figure 5 Hiring hours

Claims (3)

[Claims] (1) A turbidity detection means for detecting a change in turbidity of the washing liquid. A turbidity determination means that determines whether the turbidity change has decreased to a certain value based on the output of the turbidity detection means, and a rinsing method is determined from the output of the turbidity determination means and the rinsing method data stored in the storage means. An automatic washing machine comprising: a rinsing method determining means; and a control means that receives the output of the rinsing method determining means as an input and controls a pulsator drive means according to the determined rinsing method. (2) The automatic washing machine according to claim 1, wherein the ON-OFF time of a pulsator that rotates forward and reverse during the rinsing step is controlled in accordance with the washing time that is the output of the turbidity determining means. (3) The automatic washing machine according to claim 1, wherein the automatic washing machine is controlled so that the rinsing step time is changed depending on the washing time. 2 Pemi・