JPH01164395A - Detergent automatic charge controller of washing machine - Google Patents

Abstract

PURPOSE: To automatically supply the detergent of different concentration as well by conveying the detergent of supply quantity set by an input part through an operation control part to a water channel while operating an automatic detergent supply means, deciding the concentration of the detergent from the signal of the said input part and changing the opening/closing time limit of a water-feed valve. CONSTITUTION: An operation control part 13 sets the quantity of detergent to be supplied and the concentration of detergent through an input part 14 and displays the set contents on a display part 15. When the 'less' quantity of 'standard' detergent is selected by the input part 14, the operation control part 13 continuously turns on an automatic detergent supply means 7 until the normal detergent suitable for a set water level for the 'less' quantity is supplied. Concerning water supply at such a time, since water is stored from the beginning, the water supply for 2 sec and stop for 10 sec are repeated as intermittent water supply. When the 'standard' quantity of 'condensed' detergent is selected by the input part 14, similarly, the operation control part 13 continuously turns on the automatic detergent supply means 7 until the detergent of the 'standard' quantity suitable for the set water level is supplied. Concerning water supply at such a time, even when water is stored from the beginning, continuous water supply is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an automatic detergent dispenser for washing machines used in general households.

2. Description of the Related Art The configuration of a conventional automatic detergent injection control device for a washing machine is shown in Figure 6. That is, the input unit 14 is used to set the amount of detergent to be added, and the setting content is displayed on the display unit 16. During automatic detergent injection, a motor 9 is used to transport the detergent in the detergent case to the water supply path, a magnet 8 is used to open and close the lid of the detergent inlet of the detergent case, and a water supply magnet 6 is used to supply water to the water supply path.
The operation control unit 13 controls the bidirectional thyristors 4 and 6 so as to turn on the bidirectional thyristors 4 and 6. Therefore, the detergent is put into the water supply path and enters the washing tub together with the water.

The display unit 15 is composed of a display board 162L and indicator lights 15b to 16c as shown in FIG.
You can confirm the set amount of detergent by lighting one of them.

The operation i11 control unit sets the driving time of the motor 9 according to the change in the amount of detergent input (the motor 9 conveys a certain amount of detergent in a certain period of time), and the water supply valve is continuously operated during that one driving time. It was open and water was flowing into the water supply channel.

However, if there is water in the washing tub from the beginning and you continuously supply water while adding detergent, the water will overflow by the time the appropriate amount of detergent is added, so as shown in Figure 4. Water was being supplied intermittently.

Problems to be Solved by the Invention However, in the conventional configuration, only detergent injection control at a normal detergent concentration is considered. My friend has the problem of putting in more concentrated detergent than necessary because of the problem. As described above, with the conventional configuration, it was not possible to automatically control the injection of detergents with different detergent concentrations.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide an automatic detergent dosing control device for a washing machine that is capable of automatically dosing detergents with different detergent concentrations.

Means for Solving the Problems In order to achieve the above object, the present invention provides automatic detergent injection means for conveying detergent to a water supply path, and drive control of a water supply valve connected to the automatic detergent injection means and the water supply path. and an input section that sets the detergent injection amount and detergent concentration, and the operation control section operates the detergent automatic injection means to convey the detergent injection amount set by the input section into the water supply path. At the same time, the detergent concentration is determined based on the signal from the input section, and the opening/closing time of the water supply valve is changed based on the determination.

Effect According to the above configuration, the opening/closing time of the water supply valve is changed depending on the detergent concentration.
The opening time of the water supply valve is increased accordingly, so that even if there is water in the washing tub, an appropriate amount of detergent can be dispensed at an appropriate water level and in a short period of time.

Embodiments Hereinafter, embodiments of the present invention will be explained based on FIGS. 1, 2, and 5.

The structure of the automatic detergent injection control device for a washing machine in this embodiment is composed of the same components as in the conventional example, and the structure is shown in FIG. In other words, the bidirectional thyristor 4 is connected to the commercial power source 3.
A water supply magnet 5 is connected via a triac 6, a motor 9 for transporting the detergent in the detergent case to the water supply path, and a magnet 8 for opening and closing the lid of the detergent inlet are connected in parallel. The automatic detergent injection means 7 consists of a motor 9 and a magnet 8. The operation control unit 13 sets the detergent input amount and detergent concentration using the input unit 14 and displays the settings on the display unit 15. 10 and 11 are resistors, and 12 is a power supply section that supplies voltage to the operation control section 13. 16 is a control board.

The operation of the automatic detergent injection control device for a washing machine according to the present embodiment configured as described above will be explained below with reference to FIGS. 1 and 2.

FIG. 1 shows a display board 1 and an indicator light 2 in a display unit 15, and the indicator light 2 that lights up moves by switching the amount of detergent to be added using the input unit 14. When using regular detergent, select ``Standard'', and when using concentrated detergent, select ``Concentrated'' B, then select ``Large'', ``Standard'', or ``Less'' detergent amount.

FIG. 2 is a time chart of the ON/OFF time of the water supply magnet 6 by the operation control unit 13 when there is water in the washing tub from the beginning. For example, when the input section 14 selects a "less amount" of the "standard" detergent, the operation control section 13 controls the detergent automatic dosing means 7 so that the amount of normal detergent suitable for the set water level and the amount of "less" detergent is selected. Turn on continuously until the amount is injected. Since the water supply at this time contains water from the beginning, as shown in FIG. 2(a), water is supplied intermittently, and water is supplied for 2 seconds and stopped for 10 seconds repeatedly. If "standard" of the "concentrated" detergent is selected by the input section 14, the operation control section 13 similarly controls the detergent automatic dosing means 7 so that the amount of detergent suitable for the set water level and "standard" detergent is selected. Turn on continuously until the amount is injected. At this time, water is supplied continuously as shown in FIG. 2(b) even if water is already in the tank. This is because when a concentrated detergent is used, the amount of detergent is small, so even if water is supplied continuously, the amount of water supplied is small. In addition, "standard"
In the case of "more" or "standard" detergent, it is sufficient to change the time T from the start of water supply to the stop in Figure 2 (a), and in the case of "concentrated" or "less" detergent, the time T from the start to stop of water supply in Figure 2 (a) can be changed. Set the water supply time T2 in b) to be shorter.

Effects of the Invention As is clear from the above embodiments, according to the present invention, it is possible to use concentrated detergent as a detergent for automatically adding detergent to a washing machine, and it is also possible to prevent water from entering the washing tub from the beginning. Concentrated detergent allows continuous water supply, which saves time. Furthermore, even if concentrated detergent is used, continuous water supply does not leave any detergent in the water supply path, which prevents detergent from entering during rinsing.

[Brief explanation of the drawing]

Figure 1 is a front view showing the detergent amount display board in the embodiment of the present invention, Figure 2 (a) is a time chart of the ON/OFF time of the water supply magnet when ordinary detergent is used, Figure 2 ) is a time chart of the ON/OFF time of the water supply magnet when using concentrated detergent, Figure 3 is a front view showing the conventional detergent amount display board, and Figure 4 is a time chart of the ON/OFF time of the water supply magnet when using concentrated detergent. Turn on the water supply magnet when there is water
・Time chart of OFF time. FIG. 5 is a block diagram of the automatic detergent injection control device of the washing machine. 5...Water supply magnet, 7...Automatic detergent injection means, 8...Magnet, 9...
・Motor, 13...Operation control section, 14...
...Input section, 15...Display section. Name of agent: Patent attorney Toshio Nakao and 1 other person
rI! J 7-Display board 2-Display panel 2nd cause (b)-119 Figure 3

Claims (1)

[Claims] an automatic detergent dosing unit that conveys detergent to a water supply path; an operation control unit that controls driving of the automatic detergent dosing unit and a water supply valve connected to the water supply path; and an input unit that sets an amount of detergent to be added and a detergent concentration. The operation control section operates the detergent automatic dosing means to convey the amount of detergent input set by the input section into the water supply path, determines the concentration of the detergent based on the signal from the input section, and determines the detergent concentration based on the determination. An automatic detergent injection control device for a washing machine that changes the opening/closing time of the water supply valve.