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Ion elution unit and apparatus and washing machine comprising same

A technology of components and metal ions, applied in other washing machines, water/sewage treatment equipment, household appliances, etc., can solve the problems of reduced dissolution efficiency and achieve the effect of preventing the reduction of dissolution efficiency and avoiding adverse effects

Active Publication Date: 2007-07-25
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The present invention is proposed in response to the above-mentioned problems, and its purpose is to provide an ion stripping component that can solve the problems of scale adhesion and water quality that lead to stripping efficiency reduction, so that metal ions with antibacterial effects can be stably stripped out with high efficiency for a long time

Method used

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  • Ion elution unit and apparatus and washing machine comprising same
  • Ion elution unit and apparatus and washing machine comprising same
  • Ion elution unit and apparatus and washing machine comprising same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] For the above-mentioned silver ion stripping components, under the electrolysis conditions shown in Table 1, use a hardness of 300mgCaCO 3 / L, a sulfide ion concentration of 160mg / L, and a conductivity of 1010μS / cm, the test of elution of silver ions by electrolysis was carried out to observe the degree of scale adhesion.

[0050] [Table 1]

[0051] condition

current value

Voltage

Electrode area

current density

Adhesion of scale

a

29mA

2V

750mm 2

0.04mA / mm 2

Have

b

54mA

5V

750mm 2

0.07mA / mm 2

none

c

29mA

5V

400mm 2

0.07mA / mm 2

none

d

29mA

5V

750mm 2

0.04mA / mm 2

Have

e

85mA

7.5V

750mm 2

0.11mA / mm 2

none

f

29mA

7.5V

255mm 2

0.11mA / mm 2

none

[0052] In Table 1, condition b makes a constant current value of 54mA...

Embodiment 2

[0058] For the above-mentioned silver ion stripping components, for the hardness of 66 ~ 300mgCaCO 3 / L of water, the dissolution efficiency of silver ions was determined. The results are shown in Table 2 and FIG. 4 . Water with a hardness of 66 is the same grade as standard tap water in Japan. The stripping efficiency indicates that water with a hardness of 66 and a current density of 0.04mA / mm 2 The dissolution efficiency at 100 hours was taken as the value at 100 hours.

[0059] [Table 2]

[0060]

Hardness

mgCaCO 3 / L

Conductivity

μS / cm

Chloride

ion concentration

mg / l

Dissolution efficiency

current density

0.04mA / mm 2

current density

0.07mA / mm 2

current density

0.11mA / mm 2

66

222

35

100

100

105

100

337

54

100

100

100

200

674

108

60

...

Embodiment 3

[0066] For the above-mentioned silver ion stripping assembly, the water quality detection mechanism that detects the characteristic value (such as hardness, conductivity, chloride ion concentration, water temperature) of the water quality (such as hardness, conductivity, chloride ion concentration, water temperature) of the water quality that expresses flowing in the silver ion stripping assembly is set, when according to its When it is known that the water quality is in the condition of more dissolved ions, there is a risk of scale adhesion and a decrease in the amount of dissolution, the current density can be increased to ensure a certain amount of dissolution.

[0067] As a method of increasing the current density, there is a method of increasing the current value. For example, two electrolysis conditions are set. In the case of constant current control for both electrolysis conditions, set two constant current values ​​controlled by the constant current circuit. When at ...

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Abstract

An ion elution unit comprises at least one first electrode (102) having the polarity of anode or cathode, at least one second electrode (103) arranged opposite to the first electrode (102) and having a polarity different from that of the first electrode (102), and a drive means for applying a voltage between the first and second electrodes (102, 103) wherein metal ions are eluted from the anode by applying a voltage between the first and second electrodes (102, 103) while supplying water between them. Polarities of the first and second electrodes (102, 103) are inverted periodically and the current density of the current flowing between the first and second electrodes (102, 103) is controlled to be a predetermined value or more.

Description

technical field [0001] The present invention relates to an ion eluting unit capable of eluting antibacterial metal ions into water, and an apparatus (such as a washing machine) for adding metal ions produced by the ion eluting unit to water. Background technique [0002] When washing in a washing machine, it is often practiced to add final treatment substances to the water, especially the wash water. The final treatment substance is generally a softener or paste. In addition to this, recently, there has been an increasing demand for finishing treatment to impart antibacterial properties to laundry. [0003] From a hygienic point of view, it is best to dry the laundry in the open air. However, in recent years, with the increase in the female employment rate and the increase in the number of three-person families with a couple and one child, the number of families with no one at home during the day has increased. This kind of family can only be dried indoors. Even families...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/467D06F39/00D06F39/08
CPCD06F35/003C02F2201/4613C02F1/4606
Inventor 池水麦平
Owner SHARP KK