Washing machine, conductivity sensor in washing machine, and controlling method of the same
A conductivity sensor, washing machine technology, applied in the control device of washing machine, other washing machines, circuits, etc., can solve the problems of reducing washing efficiency, adjusting washing machine, not raising, etc., to improve washing efficiency, prevent misoperation, and improve reliability. Effect
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[0048] [First Embodiment]
[0049] Refer to Figure 1 to Figure 3 The first embodiment of the present invention will be described in detail.
[0050] figure 1 It is a cross-sectional view of the washing machine according to the first embodiment of the present invention.
[0051] Refer to figure 1 , The washing machine according to the present invention includes: a cabinet 1 forming an outer shell; an outer tub 2 firmly suspended in the cabinet 1 by a plurality of suspension members 10 for containing washing water; and a housing formed on the suspension member The lower part of 10 is a shock absorber 14 to reduce the vibration of the outer tube 2; an inner tube 3 rotatably installed inside the outer tube 2 for receiving laundry and washing water supplied through a water supply valve; a rotatably installed An agitator 7 for agitating the flow of washing water at the lower part of the inner cylinder 3; a driving motor 4 driven by an external power source; a driving shaft 5 arranged...
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[0068] [Second Embodiment]
[0069] Refer below Figure 4 to Figure 6 The second embodiment of the present invention will be described in detail.
[0070] Figure 4 It is a cross-sectional view of the conductivity sensor and its mounting structure according to the second embodiment of the present invention.
[0071] Refer to Figure 4 The conductivity sensor according to the second embodiment of the present invention includes a pair of electrodes 91, an upper protective member 21, a lower protective member 31, a sealing member 41, an upper fixing part 211 and a lower fixing part 311, these members The same as in the above-mentioned first embodiment. The difference is that the conductivity sensor further includes a connector 52 protruding downward from the lower protective member 31, and a receiver 62 formed in the connector 52 and fixed to the lower portion of each electrode to apply current, wherein each electrode The lower part of it forms a round rod shape.
[0072] Figure 5 ...
Example
[0075] [Third Embodiment]
[0076] Refer below Figure 7 with Figure 8 The third embodiment of the present invention will be described in detail. The third embodiment provides a structure that can prevent the misoperation of the electrode 91, and the misoperation of the electrode 91 can be caused by foreign substances entering the gas chamber. The air chamber is in the shape of a hollow rod extending up and down. Foreign substances, such as fluff or dirt contained in the washing water, may be additionally introduced and accumulated inside the air chamber. If a foreign substance intervenes between the electrodes, the conductivity will be changed irregularly, so that the amount of current cannot be accurately detected. For example, if foreign substances intervene between the electrodes, they will act as a conductor or insulator, making it impossible to accurately measure conductivity. Therefore, in this embodiment, a device for preventing the intervention of foreign substances is f...
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