JP2639092B2 - Washing machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine having a bactericidal effect used in ordinary households.

2. Description of the Related Art First, a conventional washing machine will be described with reference to FIG. Fifth
In the figure, reference numeral 1 denotes a pulsator, 2 denotes an inner tank having the pulsator 1 therein, and an inner tank having a hole 3 in a side wall. 4 denotes an outer tank that surrounds the inner tank 3; A suspension device, 6 is a housing, 7 is a valve, 8 is a drain pipe, and 9 is a sheath heater, which is provided between the bottom of the inner tank 2 and the outer tank 4.

The operation of this configuration will be described. First, the laundry and water are put into the inner tub 2 and the sheath heater 9 is energized by turning on the power. Then, the pulsator 1 is intermittently stirred at predetermined time intervals, and the temperature of the water supplied into the inner tank 2 is uniformly increased to increase the temperature.

Problems to be Solved by the Invention In the washing machine having such a conventional configuration, the amount of water supplied to the inner tub, in other words, the water level of the water level supplied by the user in accordance with the amount of the laundry to be washed, is set to the hot water. Was to become. Therefore, when the amount of laundry is large, a large amount of water corresponding to the high water level needs to be heated to a high temperature, a large amount of heat is required, and much time is required for the high temperature.

No particular consideration was given to the heat retaining surface of the heated water.

Further, in order to uniformly raise the temperature, it is necessary to stir, so that it is necessary to rotate the pulsator 1 intermittently at a predetermined time interval, and the control surface is complicated.

Further, as shown in FIG. 5, the position of the sheathed heater 9 is provided between the bottom of the inner tank 2 and the bottom of the outer tank 4, and the recent tendency of both the inner tank and the outer tank is made of resin. In the case of resin, it could not be said that it was preferable from the viewpoint of safety against fire such as empty cooking.

The present invention solves the above-mentioned problems of the conventional washing machine, and has an object to efficiently produce hot water and efficiently prevent heat release.

Means for Solving the Problems In order to achieve the above object, the present invention provides an inner tank having a pulsator inside and a hole in a side wall, an outer tank surrounding the inner tank, and circulating from the bottom of the outer tank. A circulation path through which water is sprinkled into the inner tank from a water spout at the upper part of the inner tank via a pump, and a heating means and an ejector device are provided in the circulation path to heat the air in the circulation path and mix air.

The above means can quickly heat a small amount of water by providing a heating means in a circulation path via a circulation pump, and can spray hot water on the laundry and mix air with an ejector device. With the configuration, the washing liquid can be foamed, and a layer of the foamed washing liquid can be formed on the upper portion of the laundry.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

FIG. 1 and FIG. 2 show a first embodiment. In FIG. 1, reference numerals 1 to 8 denote the same configuration and operation as those in FIG. Ten
Is a circulation pump for circulating the supplied washing water, 11 is a heating means for heating the washing water, and 12 is a washing water heated by the heating means 11 and sprinkled on the laundry stored in the inner layer 2 with the warm water. 13 is a pipe connecting the bottom of the outer layer 4 and the circulating pump 10, 14 is a pipe connecting the circulating pump 10 and the heating means 11, and 15 is a heating means 11 and a water spout 12
And a pipe for circulating the washing water by these 10 to 15 parts. FIG. 2 shows the structure of one embodiment of the heating means 11. As shown in FIG. In the figure
Numeral 16 denotes a heater, and the heating means 11 is constituted by the heater 16 and a frame 17 containing the heater 16 with a gap therebetween. The washing water flows in the gap, and receives the heat generated by the heater 16 to circulate.

Next, the operation of the configuration of the first embodiment will be described. The user first puts the laundry and the detergent into the inner tub 2 and supplies water to a predetermined water level. The amount of water supply in this case is extremely small as compared with the amount of water supply in a conventional washing machine. That is,
If the amount of laundry is 4 kg, about 40
In contrast to the case where the washing water is required, in the case of the configuration of this embodiment, only about 12 is required. Of course, if the amount of laundry decreases, the amount of washing water used can be correspondingly reduced. Next, when the circulation pump 10 is operated, the washing water stored in the bottom of the outer tub 4 is circulated in the circulation path by the circulation pump 10, and is heated and heated when passing through the heating means 11. Sprinkled on the laundry. The warmed washing water sprinkled on the laundry is permeated into the laundry and passes while increasing the temperature of the laundry, and returns to the bottom of the outer tub 4. By continuing this circulation, the temperature of the washing water gradually increases, and accordingly, the temperature of the laundry also gradually increases.

By raising the temperature of a small amount of water in this way, the temperature of the entire laundry can be raised, and when the temperature reaches about 55 ° C. or higher, a sterilizing effect can be obtained. It is said that a sterilizing effect can be obtained usually at 55 ° C. or higher, but the temperature may be set as required.

Also, the detergent initially introduced during the circulation of the washing water is dissolved in the washing water and circulates as a detergent solution. In this manner, the same effect as when the laundry is immersed in the high-temperature detergent solution can be obtained. The cleaning efficiency is also improved.

As described above, in the present embodiment, the whole laundry can be heated with a small amount of water, and the water temperature can be uniformly raised by disposing the heating means in the circulation path of the washing water. . In addition, since the location of the heating unit was set in the circulation path,
17 can be made of metal or the like, which is higher in safety than the conventional one.

Next, a second embodiment will be described with reference to FIGS. In the figure, components 1 to 15 are the same as those in FIG. 18 is an ejector device, and 19 is an air suction pipe.

The operation of the configuration of the second embodiment will be described below. When the circulation of the washing water is started by the circulation pump 10, the flow velocity increases at the throat of the ejector device 18 and the air suction pipe is increased.
The outlet of 19 becomes a negative pressure, and air is trapped in the washing liquid. Thus, the washing liquid sprinkled from the sprinkling port 12 becomes a washing liquid containing air. Therefore, a washing liquid containing air, that is, a foamy washing liquid forms a layer on the laundry.
Since this layer contains air, it has a heat insulating effect and an effect of preventing heat radiation from the laundry.

Therefore, in this embodiment, in addition to the effects of the above-described first embodiment, the temperature of the laundry to be heated can be kept high, and the temperature of the laundry to be heated can be increased more efficiently.

Effect of the Invention As described above, a large amount of laundry can be heated by providing a circulation path, heating a small amount of water by way of a heating means on the way, and increasing the temperature. It is. As a result, sterilization of the laundry can be expected, and at the same time, a great effect is obtained for washing.

Further, by providing the ejector device in the middle of the circulation path, a layer of foamy washing liquid can be formed on the upper part of the laundry, and in addition to the effect of the first means, the temperature of the laundry can be maintained. It also has an effect.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one embodiment of the present invention, FIG. 2 is a cross-sectional view showing the heating means, FIG. 3 is a cross-sectional view showing another embodiment, and FIG. FIG. 5 is a sectional view showing a conventional washing machine. 2 ... Inner tank, 4 ... Outer tank, 10 ... Circulation pump, 11 ... Heating means, 12 ... Spray port, 18 ... Ejector device, 19 ...
... air suction pipe.

Claims (1)

(57) [Claims] 1. An inner tank having a pulsator provided therein and having a hole in a side wall, an outer tank surrounding the inner tank, and a water pump at an upper part of the inner tank from a bottom of the outer tank via a circulation pump. A washing machine in which a circulation path for spraying water and a heating means and an ejector device are provided in the circulation path to heat and mix air in the circulation path.