WO2018082407A1

WO2018082407A1 - Washing machine

Info

Publication number: WO2018082407A1
Application number: PCT/CN2017/102649
Authority: WO
Inventors: 铃木肇
Original assignee: 青岛海尔洗衣机有限公司; Aqua株式会社
Priority date: 2016-11-02
Filing date: 2017-09-21
Publication date: 2018-05-11
Also published as: JP2018068872A

Abstract

A washing machine (1) using ultrasonic waves to obtain good washing capacity. The washing machine (1) is equipped with: a de-aerated water generation part (2), for performing de-aeration to remove gas in water led into a washtub (3) and generating de-aerated water (DW); the washtub (3), configured to do the laundry using the de-aerated water (DW) generated by the de-aerated water generation part (2); and an ultrasonic vibration part (4), configured to do the laundry by means of vibration of the washtub (3) caused by ultrasonic waves.

Description

washing machine

Technical field

The present invention relates to a washing machine which can be mainly preferably used as a household.

Background technique

In the past, it has been proposed to use a deaerated water having a dissolved gas concentration lower than a normal concentration at atmospheric pressure as water used for washing, thereby achieving a purpose of increasing the cleaning effect, shortening the cleaning time, and saving the rinsing water (for example, refer to the patent). Document 1).

Prior art literature

Patent literature

Patent Document 1: Japanese Laid-Open Patent Publication No. Hei 5-277286

Summary of the invention

Problems to be solved by the invention

Further, as a washing method, a method has also been proposed in which the laundry is washed by applying vibration generated by ultrasonic waves to the dirt portion of the laundry to cause cavitation of the washing water. That is, it has been conventionally known that when the cavitation is favorably applied to the laundry, sufficient detergency is obtained.

However, in the past, even if it is desired to perform washing by applying ultrasonic waves to the entire area of the washing water in the washing tub, it is impossible to apply ultrasonic waves to the entire area of the washing water, and sufficient washing ability is not obtained.

An object of the present invention is to effectively solve such a problem, and an object thereof is to provide a washing machine capable of obtaining a good washing ability by using ultrasonic waves.

Solution to solve the problem

The present invention has been made in view of the above problems, and adopts the following aspects. The washing machine of the present invention is characterized in that a deaerated water generating unit that degases a gas contained in water introduced into the washing tub to generate deaerated water, and the washing tub is housed to utilize a deaerated water pair generated from the deaerated water generating unit The laundry is washed; and the ultrasonic vibration portion is capable of vibrating the washing tub by ultrasonic waves to wash the laundry.

Furthermore, the present invention is characterized in that the washing water adjusting unit is configured to mix the deaerated water generated by the deaerated water generating unit with water to form the mixing having an arbitrary gas mixing amount. Water is introduced into the washing tub.

Further, the present invention is characterized in that the ratio of the deaerated water to the mixed water is 10 to 80%.

Effect of the invention

As described above, according to the present invention described above, it is possible to effectively overcome the problem that conventionally, the amount of gas contained in water is excessive, and these gases cancel the vibration of the ultrasonic waves, and the ultrasonic waves do not reach the entire area of the washing tub. Specifically, according to the present invention, it is possible to provide a washing machine in which the degassing water is utilized as the mixed water which can be supplied to the washing water, so that the washing ability of the ultrasonic waves can be spread throughout the washing tub, and the ultrasonic wave can be effectively realized. Achieved washing.

Further, the present invention is made in view of the fact that when the gas is completely degassed from the water introduced into the washing tub, the gas which can vibrate the laundry itself disappears by making a mixture of water mixed as non-degassed non-degassed water. Water can more effectively exert the washing ability by ultrasonic waves.

Further, according to the present invention, by setting the ratio of the deaerated water to 10 to 80%, the washing ability by ultrasonic waves can be more effectively exhibited.

DRAWINGS

FIG. 1 is an explanatory view showing a configuration of a washing machine according to an embodiment of the present invention.

Fig. 2 is a functional explanatory diagram of the embodiment.

detailed description

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

The washing machine 1 of the present embodiment can also be preferably used, for example, for a home, a laundromat Commercial use (laundromat) or dry cleaning. FIG. 1 is a schematic configuration diagram of the washing machine 1, and FIG. 2 is a functional explanatory diagram of the washing machine 1.

As shown in FIG. 1 and FIG. 2, the washing machine 1 includes a deaerated water generating unit 2, and degassed water DW from which a gas such as oxygen or nitrogen contained in the normal tap water S is removed, and is used for use. The mixed water SW of the washing water of the detergent (not shown); the washing tub 3 is accommodated to wash the laundry by the deaerated water DW generated from the deaerated water generating unit 2; and the ultrasonic vibrating unit 4 can use the ultrasonic US The mixed water SW existing in the washing tub 3 is vibrated to wash the laundry; and the washing water adjusting unit 5 introduces the mixed water SW appropriately mixed with the deaerated water DW and the tap water S as non-degassing water to the washing Bucket 3. Hereinafter, the configuration of each part of the washing machine 1 will be described with reference to Fig. 2 .

The main component of the deaerated water generating unit 2 is a primary tank 23, and as shown in Fig. 2, the tap water S is introduced from the tap water pipe via the valve B, and the deaeration module 20 is sent from the main tank 23 The liquid pump 24 and the filter 25 accommodate the tap water S for manufacturing the deaerated water DW. The deaeration module 20 has a deaeration unit 21 that removes the gas sucked by the vacuum pump 27 from the tap water S, and a water intake unit 22 that takes out the deaerated water DW to guide it to the washing tub 3. Further, in the present embodiment, the method of generating the deaerated water DW by the vacuum pump 27 is applied. However, the deaerated water DW can be stably generated by using a hollow fiber membrane method of a hollow fiber membrane (not shown). Further, a drain valve 26 for draining the remaining tap water S is provided between the liquid supply pump 24 and the filter 25.

The washing water adjusting unit 5 mainly includes a secondary tank 50 that introduces the deaerated water DW taken out from the deaerated water generating unit 2 and introduces the tap water S from the water inlet port via the valve B. By mixing the deaerated water DW and the tap water S in the sub-tank 50, the washing water S having a ratio of the deaerated water DW of 10% to 80% is adjusted. It is to be noted that the ratio of the deaerated water DW is desirably such that the dissolved oxygen concentration is 3 ppm as a reference value so as to be close to the 3 ppm.

The washing tub 3 is for storing the mixed water SW obtained from the washing water adjusting unit 5, and is washed in a state in which a detergent (not shown) is added. As shown in FIG. 2, in the present embodiment, the pulsator for stirring the laundry and the components for dehydration are omitted from the washing tub 3, but it is undoubted that it is not denied. It has a structure of a pulsator and a dehydration function. Further, in the present embodiment, the washing tub 3 is provided with a dissolved oxygen measuring device 31 capable of measuring the dissolved oxygen concentration. However, the configuration for measuring the amount of the gas dissolved in the mixed water SW is not limited to the dissolved oxygen measuring device 31. Further, a configuration in which the dissolved oxygen measuring device 31 is provided in the sub-tank 50 may be employed.

In the present embodiment, the ultrasonic vibration unit 4 is provided on the bottom surface side of the washing tub 3. As a result, even if the water level in the washing tub 3 changes depending on the amount of the laundry, the mixed water SW can be cavitation. The specific configuration of the ultrasonic vibration unit 4 can emit, for example, an ultrasonic wave US having a frequency of 20 kHz to 100 kHz. By the ultrasonic vibration unit 4, the dissolved gas in the mixed water SW vibrates and cavitation occurs, and the laundry in the washing tub 3 can be appropriately washed by the impact force.

In the washing machine 1 of the present embodiment, the deaerated water DW obtained by removing the dissolved gas from the deaerated water generating unit 2 and the tap water S are mixed, and the ratio of the deaerated water DW is 10 to 80%. The SW is introduced into the washing tub 3, and the mixed water SW in the washing tub 3 is vibrated by the ultrasonic vibrating portion 4, whereby the laundry in the washing tub 3 can be appropriately washed. In the case of the tap water S at normal temperature, the amount of dissolved gas (8.11 mg/L under the condition of 25 ° C) is excessive, and both the washing water and the mixed water SW are caused by the vibration of the ultrasonic US. When the gases cancel each other out of vibration, in the present embodiment, by containing the deaerated water DW, the amount of dissolved gas can efficiently transmit the vibration of the ultrasonic waves to the entire area in the washing tub 3. In addition, in the case where only the deaerated water DW is present, the dissolved gas vibrated by the ultrasonic wave US disappears or remarkably small, and therefore, the inside of the washing tub 3 cannot be vibrated.

As described above, the washing machine 1 of the present embodiment can mix the deaerated water DW as the mixed water SW, for example, by using the washing water having a dissolved oxygen amount of about 3 ppm and applying the ultrasonic vibration of the washing tub 3 to vibrate. The laundry in the washing tub 3 can be appropriately washed throughout each of the mixed water SW. That is, the washing machine 1 of the present embodiment can effectively utilize the vibration of the ultrasonic wave US for cleaning the laundry.

In the washing machine 1 of the present embodiment, the washing water adjusting unit 5 that mixes the deaerated water DW and the tap water S is provided, and the mixed water SW holding the desired amount of dissolved gas can be stably supplied to the washing tub 3. Thereby, the above effects can be stably obtained.

In addition, the washing machine 1 of the present embodiment can more effectively exhibit the washing ability of the ultrasonic US by setting the ratio of the deaerated water DW to 10 to 80% of the entire mixed water SW.

Although an embodiment of the present invention has been described above, the configuration of the present embodiment is not limited to the above configuration, and various modifications can be made.

For example, in the above embodiment, only the cleaning function by ultrasonic waves has been illustrated and described, but it goes without saying that the invention is not applied to the washing with the pulsator and the lifting rib. The stirring function of the object, the dehydrating function, and the solution of the washing machine further having a drying function. Further, in the above embodiment, the present invention has been disclosed as being applied to a configuration such as a so-called vertical full-automatic washing machine, but it is undoubted that the present invention can also be applied to the lateral or oblique opening of the washing tub. Drum type washing machine. Further, in the above-described embodiment, the washing water adjusting unit and the deaerated water generating portion are configured in a single body. However, by appropriately adjusting the deaeration function of the deaerated water generating unit, it is possible to generate washing water having a desired dissolved gas amount. Mix water. In other words, the deaerated water generating unit may be provided integrally with the washing water adjusting unit.

Various modifications can be made without departing from the spirit and scope of the invention.

Description of the reference numerals

1 washing machine

2 Degassing water generation department

3 washing bucket

4 Ultrasonic vibration department

5 Washing water adjustment department

SW mixed water

DW deaerated water

S tap water

Claims

A washing machine characterized by comprising:

a deaerated water generating unit that degases a gas contained in water introduced into the washing tub to generate deaerated water;

a washing tub accommodated to wash the laundry with deaerated water generated from the deaerated water generating portion;

In the ultrasonic vibration unit, the washing tub can be vibrated by ultrasonic waves to wash the laundry.
A washing machine according to claim 1, comprising:

The washing water adjusting unit is configured to introduce the mixed water having an arbitrary gas mixing amount into the washing tub by mixing water obtained by mixing the deaerated water generated by the deaerated water generating unit with water.
A washing machine according to claim 2, wherein

The ratio of the deaerated water to the mixed water is 10 to 80%.