JPH05123488A - Electric washing machine - Google Patents

Abstract

PURPOSE:To provide the subject machine in which a generating device for hypochlorous acid ions with bleaching and bactericidal action on clothes is provided. CONSTITUTION:Electrodes 10 for electrolysis by applying voltage are provided on the bottom of the inner wall of an outer tub 4 for holding water, in which an inner tub for a washing and spin-drying tub is placed, or on the lower side wall of the inner wall of the outer tub. In this way, since the amount of hypochlorous acid ions required for bleaching and bactericidal washing of clothes is produced, it is unnecessary to place a dangerous undiluted solution such as a chlorinous bleaching agent marketed, for domestic use. It is also unnecessary to use an oxygenic bleaching agent, which is safe but of which the bleaching power is weak.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to hypochlorite ion produced by electrolysis of saline solution.

[0002]

[Chemical 1]

[0003] The present invention relates to a domestic washing machine provided with a mechanism for bleaching and sterilizing cleaning.

[0004]

2. Description of the Related Art A conventional electric washing machine of this type will be described with reference to FIG.

As shown in the figure, a resin body cover 3 provided with a bleaching agent inlet 2 is attached to the upper part of the body 1, inside the outer tank 4 for receiving water, and at the bottom. An inner tub 6 serving as a washing tub and a dehydrating tub provided with a stirring blade 5 is arranged. A cover 8 provided with a bleaching agent receiver 7 is fixed to the upper part of the outer tank 4 so that the bleaching agent is introduced between the outer tank 4 and the inner tank 6.

[0006] Next, in the above-mentioned structure, a method of bleaching laundry clothes will be described. In the washing process, a detergent and a chlorine-based or oxygen-based bleaching agent are put together and a normal operation is performed. Or, put only the clothes you want to bleach into the electric washing machine, add the bleaching agent when the stirring blade 5 starts stirring after water supply, and after a few minutes pause and soak it, then rinse and dehydrate. is there.

[0007]

However, in such a conventional electric washing machine, although a commercially available chlorine-based (sodium hypochlorite) or oxygen-based (sodium percarbonate) bleach is used, Mixing an undiluted solution of chlorine bleach with an acid type pipe cleaner may generate chlorine gas and cause personal injury. On the other hand, the safe oxygen bleaching agent has a problem that the bleaching power is weak.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide an electric washing machine having an apparatus for producing an appropriate amount of hypochlorite ion having bleaching and sterilizing effects.

[0009]

In order to achieve the above object, an electrode is provided for electrolyzing salt water by applying to the bottom portion or the lower side wall of the inner wall of the outer tank for receiving water.

[0010]

According to the above construction, when the laundry to be bleached and sterilized and the salt are put into the inner tub of the washing and dehydration tub and bleaching and sterilization washing is started, the amount of water required for the bleaching and washing is adjusted according to the amount of cloth. After supplying, the stirring blade stirs the washing water, dissolves the salt, and direct current electricity is applied to the electrode installed on the inner wall of the outer tank for receiving water, chlorine generated at the anode and caustic soda generated at the cathode are The reaction 2) produces hypochlorite ion having an oxidizing action. Since the hypochlorite ion has a strong oxidizing action, it decomposes dirt in laundry and sterilizes Escherichia coli and the like.

[0011]

[Chemical 2]

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

In the embodiment of FIG. 1, two rod-shaped electrodes 10 are fitted to a support 9 provided on the bottom of the inner wall of an outer tub 4 for receiving water of an electric washing machine. Both ends of the electrode 10 are outside the outer tub 4 via a packing 11 and are connected.

Next, the operation of this embodiment will be described. Put an appropriate amount of salt and laundry to be bleached / sterilized in the inner tub 6 of the washing tank / dehydration tank, and press the button (not shown) of the bleaching / sterilization course. decide.
After supplying water to the determined water level, the stirring blade 5 stirs the laundry to dissolve the salt and DC electricity is applied to the electrode 10 to electrolyze the washing water. As a result, chlorine produced at the anode and caustic soda produced at the cathode react with each other to produce hypochlorite ions having a bleaching and sterilizing action, and then bleaching and sterilizing cleaning.

As described above, according to this embodiment, a DC voltage is applied to the electrode 10 to generate hypochlorite ions having a bleaching and sterilizing action, and the ions are present in the washing liquid. Unprecedented safe bleaching and sterilization cleaning can be performed.

In this embodiment, the voltage applied to the electrode 10 is DC, but it may be AC. Also, salt was added in order to perform good electrolysis, but even if salt is not added, for example, chlorine contained in tap water will generate hypochlorite ion, so that it has an effect on bactericidal action. To be done. (Because the ion concentration is much lower than when salt is added, the bleaching effect is less effective.)

[0017]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, an electrode for electrolyzing salt water by applying direct current electricity is provided on the bottom or the lower side wall of the inner wall of the outer tub for receiving the water of the electric washing machine, and the strong oxidative decomposition action is achieved. Since the required amount of hypochlorite ion having a bactericidal action is generated, it is not necessary to place a dangerous stock solution of a chlorine bleach on the market at home. Further, it has a bleaching / sterilizing effect superior to that of a safe oxygen-based bleaching agent.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of an electric washing machine according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of a conventional electric washing machine.

[Explanation of symbols] 2 Bleaching agent inlet 7 Bleaching agent receiver 10 Electrode

Claims (1)

[Claims] 1. An electrode for electrolyzing by applying a voltage is provided on the bottom of the inner wall of the outer tub for receiving water in which the inner tub of the washing tub / dehydrating tub is arranged, or on the lower side wall of the inner tub of the outer tub. An electric washing machine characterized by producing chlorite ions.