KR100798783B1 - Drum Washing Machine - Google Patents

Abstract

The present invention relates to a drum washing machine, and after washing is performed using silver ions, an object of the present invention is to provide a drum washing machine which can prevent the silver ions from being discharged to the outside to cause environmental pollution.

The present invention for achieving the above object is a main body, a fixing tank provided inside the main body, a rotating tank rotatably installed in the fixing tank, and a silver ion generating device provided inside the main body to add silver ions to the wash water and And a plating apparatus provided in the main body to reduce the concentration of silver ions in the wash water by plating silver ions contained in the wash water on the outer circumferential surface of the rotating tub immediately before discharging the wash water to the outside of the main body.

Description

Drum Washing Machine

1 is a side cross-sectional view of a drum washing machine according to the present invention.

FIG. 2 is an enlarged side view of the portion "A" in FIG.

Figure 3 is a side view showing the silver plated on the rotating bath by electroplating.

4 is a table showing experimental data according to the present invention.

* Description of symbols on the main parts of the drawings *

3: fixed tank 5: rotating tank

20: rotating shaft 30: plating apparatus

32: first electrode 34: second electrode

36: power supply portion 40: conductive film

42: insulating film

The present invention relates to a drum washing machine, and when washing using metal ions such as silver nano ions, when washing the discharged water to the outside, the drum that can prevent the environmental pollution that can be generated by mixing the metal ions in the discharged water It is about a washing machine.

The conventional drum washing machine comprises a main body, a metal ion generating device provided inside the main body and mixing metal ions such as silver ions with the wash water, and a fixed bath and a rotating bath provided inside the main body.

If the user wishes to wash using silver ions, the washing water passes the ion generating device and the silver ions are mixed with the washing water. In this state, the washing water enters the rotary bath through the detergent box, followed by washing, rinsing and dehydration. You will go through the process.

However, when rinsing or dehydration process, the wash water mixed with silver ions is discharged to the outside. If the wash water mixed with silver ions is discharged to the outside, there is a problem of causing environmental pollution.

The present invention is to solve this problem, after washing with silver ions, when washing water is discharged to the outside, the wash water can be separated to prevent environmental pollution that may occur due to such metal ions The purpose is to provide a drum washing machine.

The present invention for achieving this object and the body; A fixing tub provided inside the main body; A rotating tub rotatably installed in the fixing tub; A silver ion generating device provided inside the main body and adding silver ions to the wash water; It is a drum washing machine including a plating apparatus provided inside the main body to reduce the concentration of silver ions in the wash water by plating silver ions contained in the wash water on the outer circumferential surface of the rotary bath immediately before discharging the wash water to the outside of the main body. do.
In addition, the plating apparatus includes a first electrode, a second electrode, and a power supply unit for generating a voltage at the first and second electrodes, wherein the first electrode is provided to be spaced apart from the rotating bath at a predetermined interval to apply a positive voltage. The outer circumferential surface of the rotating tub may be provided as a conductor, and the second electrode may be configured to apply a negative voltage to the outer circumferential surface of the rotating tub.
In addition, the rear side of the rotating tank is provided with a rotating motor and a rotating shaft for driving the rotating tank, provided on the outer circumferential surface of the rotating shaft is provided with an insulator to block the transfer of electricity to the rotating shaft and the rotating motor, and the outside of the insulating film It may be provided in a configuration further comprising a conductive film provided in the conductor to electrically connect the first electrode and the rotary bath.
In addition, the first electrode may be provided to face the outer circumferential surface of the rotating tub from the lower surface of the fixing tub, spaced apart from the outer circumferential surface of the rotating tub, and the second electrode may be provided to be inserted into the rear surface of the fixing tub.

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Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in Fig. 1, the drum washing machine according to the present invention has a main body 1 forming its appearance, a fixing tank 3 provided inside the main body 1, and an interior of the fixing tank 3; Rotating tank (5) rotatably provided in the upper portion, a washing water guide tube (7) provided on the fixing tank (3) to guide the wash water, and is connected to the wash water guide tube (7) to obtain silver ions It includes a silver ion generating device 10 for generating and mixing with the wash water, and a detergent box 13 provided in front of the main body (1).

In addition, the rear side of the fixing tank 3 is provided with a rotary motor 16 for driving the rotary tank 5, the rotary motor 16 and the rotary tank 5 by the rotary shaft 20 Connected.

In addition, the lower portion of the fixing tank 3, the drainage pump 25 for discharging the wash water to the outside after the washing or rinsing, dehydration, etc., and the drainage guide pipe (7) connected to the drainage pump (25) This is provided.

On the other hand, the inside of the main body (1) is provided with a plating apparatus 30 for separating the silver ions from the wash water using an electroplating mechanism by applying electricity to the wash water mixed with silver ions, the plating apparatus 30 is A voltage is applied to the first electrode 32 provided behind the rotary tub 5, the second electrode 34 provided below the rotary tub 5, and the first and second electrodes 32 and 34. It includes a power supply 36 for transmitting.

Here, a positive voltage is applied to the first electrode 32, a negative voltage is applied to the second electrode 34, and the first electrode 32 is spaced apart from the rotating tank 5, but the second The electrode 34 is electrically connected to the rotary tub 5, and when a negative voltage is applied to the second electrode 34, a negative voltage is also applied to the rotary tub 5.

As shown in FIG. 2, the first electrode 32 penetrates through the lower portion of the fixing tub 3 to face the rotating tub 5, but is spaced apart from the rotating tub 5 by a predetermined interval. It is.

In addition, the second electrode 34 is inserted in the rear of the fixing tank 3, but the second electrode 34 is not directly in contact with the rotating tank 5, but on the rotating shaft 20 It is electrically connected by the electrically conductive film 40 provided.

The outer peripheral surface of the rotary shaft 20 is coated with an insulating film 42 for preventing electrical transfer, that is, the transfer of charge by the second electrode 34, to the rotary shaft 20 and the rotary motor 16, The conductive film 40 is coated on the outer circumferential surface of the insulating film 42, and the conductive film 42 is located at a position corresponding to where the second electrode 34 is disposed, thereby providing the rotation shaft 20 and Even when the rotating tank 5 rotates, when a negative voltage is applied to the second electrode 34, the negative voltage may be transmitted to the rotating tank 5.

Hereinafter, an operation of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 2, when the washing, rinsing, and dehydration process is completed, the washing water W containing silver ions Ag + is positioned between the fixing tank 3 and the rotating tank 5.

In addition, by separating the wash water and silver ions (Ag +) before discharging the wash water (W), the silver ions (Ag +) of the wash water discharged to the outside are completely removed or the concentration of silver ions (Ag +) is reduced. 3, a positive voltage is applied to the first electrode 32 and a negative voltage is applied to the second electrode 34, as shown in FIG. In the outer circumferential surface of 5), negative charges guided by the conductive film 40 are spread, and positive charges are positioned around the first electrode 32.

By the operation of the first and second electrodes 32 and 34, silver ions Ag + mixed in the washing water W move in the direction of the outer circumferential surface of the washing tank 5, and thereafter, from the washing tank 5. In combination with the discharged electrons to be plated on the outer circumferential surface of the washing tank 5 to form a thin metal film, the chemical reaction formula of the silver plating occurring on the outer circumferential surface of the washing tank 5 is as follows.

Ag + + e- → Ag (Equation 1)

At this time, since the insulating film 42 is formed on the outer circumferential surface of the rotating shaft 20, the negative voltage generated from the second electrode 34 does not face the rotating shaft 20 and the rotating motor 16.

Figure 4 shows the experimental data showing the change in the concentration of silver ions in the wash water when the plating apparatus according to the present invention, according to the experimental data, when the concentration of silver ions in the initial wash water is 0.05ppm If the voltage of 20V is applied for 5 minutes, the concentration is 0.03ppm, which decreases by 40%.

When the voltage of 20V is applied for 10 minutes, the concentration of silver ions is 0.005ppm. If the voltage of 40V is applied for 10 minutes, the concentration of silver ions drops to 0.004ppm. Since it can be said that it is the trace amount which can be seen to be almost harmless, the desired result of silver ion removal can be acquired by the plating apparatus by this invention.

When the plating device is silver plated on the outer circumference of the rotating tub, it is possible to prevent the formation or diffusion of bacteria or molds that can grow outside the rotating tub, thereby additionally obtaining an antibacterial effect.

By the present invention, it is possible to significantly reduce the concentration of silver ions contained in the wash water to be discharged to the outside, it is possible to block the possibility of environmental pollution that may occur due to the silver ions discharged to the outside in advance. It works.

In addition, since the silver plated on the outer circumferential surface of the rotating tub has an advantage that the antibacterial effect that can prevent the growth of mold or bacteria that can be parasitic on the outer circumferential surface of the rotating tub can also be obtained incidentally.

Claims (4)

A main body; A fixing tub provided inside the main body; A rotating tub rotatably installed in the fixing tub; A silver ion generating device provided inside the main body and adding silver ions to the wash water; And a plating apparatus provided in the main body to reduce the concentration of silver ions in the wash water by plating silver ions contained in the wash water on the outer circumferential surface of the rotary tub immediately before discharging the wash water to the outside of the main body. . The method of claim 1, The plating apparatus includes a first electrode, a second electrode, and a power supply unit for generating a voltage at the first and second electrodes, wherein the first electrode is provided to be spaced apart from the rotating bath at a predetermined interval to apply a positive voltage. The outer circumferential surface of the rotary tub is provided with a conductor, and the second electrode is a drum washing machine, characterized in that to apply a negative voltage to the outer peripheral surface of the rotary tub. The method of claim 2, A rotating motor and a rotating shaft for driving the rotating tank are provided at the rear of the rotating tank, provided on an outer circumferential surface of the rotating shaft, and provided with an insulating film provided as a non-conductor to block the transfer of electricity to the rotating shaft and the rotating motor, and provided outside the insulating film. And a conductive film provided as a conductor to electrically connect the first electrode and the rotating tub. The method of claim 2, The first electrode is provided to face the outer circumferential surface of the rotating tub from the lower surface of the fixing tank is provided to be spaced apart from the outer circumferential surface of the rotating tub, the second electrode is provided to be inserted into the rear of the fixing tank washer.

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