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Water conductivity and turbidity sensor for home appliance

A household appliance, water and electricity technology, applied in the measurement of scattering characteristics, fluid resistance measurement, etc., can solve the problems of easy leakage of washing water, inability to detect water turbidity, hardness detection temperature correction, etc.

Inactive Publication Date: 2011-08-03
HANGZHOU KAMBAYASHI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention aims to solve the problems in the prior art that the washing water of the water hardness detection sensor of the household appliances is easy to leak, the water turbidity cannot be detected, and the hardness detection cannot be corrected for temperature. A sensor that detects the hardness of the wash water, and also detects the turbidity of the wash water, and prevents the wash water from leaking out

Method used

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  • Water conductivity and turbidity sensor for home appliance
  • Water conductivity and turbidity sensor for home appliance
  • Water conductivity and turbidity sensor for home appliance

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Embodiment Construction

[0027] Household appliance of the present invention uses water conductance and water turbidity sensor, see figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 , has a housing 1, the housing 1 has a cylindrical structure 101, the front end of the housing is provided with a groove 102 through which water can pass, and the two sides of the bottom of the groove 102 are provided with electrode terminals formed through the housing Hole 103, the electrode plate 4 and electrode terminal 2 that width is greater than the diameter of electrode terminal hole 103 are riveted to form electrode, and the electrode terminal of this electrode is inserted in electrode terminal hole 103 downwards, is covered with seal ring 6 on the electrode terminal, and the electrode plate of electrode Inserted in the electrode positioning groove 104, the electrode positioning groove can fix the electrode plate without rotation, and keep a fixed distance between the anode electrode plate and...

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Abstract

The invention discloses a water conductivity and turbidity sensor for a home appliance, which have multiple functions and can prevent washing water from leaking. The sensor has a shell with a cylindrical structure, wherein the front end part of the shell is provided with a water conducting groove (102); electrode terminal holes (103) which run through the shell are arranged on the two sides of the bottom part of the groove; electrode positioning grooves (104) are formed on parts, which correspond to the electrode terminal holes, on the shell; electrodes formed by connecting electrode plates (4) and electrode terminals (2) are provided, the electrode terminals are plugged into the electrode terminal holes, and the electrode plates are plugged in the electrode positioning grooves; sealing rings (6) are formed between the electrode terminals and the shell; a light emitting diode (7) and a light sensing triode (8) are arranged in the shell on the two sides of the groove (102) respectively; a printed circuit board (5) is arranged in the shell; and the light emitting diode, the light sensing triode and the electrode terminals are connected to the printed circuit board (5). The sensor is applicable to home appliances such as washing machines and dish-washing machines.

Description

technical field [0001] The invention relates to a water turbidity and water conductivity detection sensor installed on household appliances such as washing machines and dishwashers. Background technique [0002] The conductivity of water usually depends on the concentration of ions contained in the water. The concentration of ions in natural water is generally proportional to the concentration of metal ions (such as sodium, calcium, magnesium, etc.) in water, and the concentration of metal ions (especially calcium, magnesium ions) The role of detergent in washing machines, dishwashers and other equipment has a greater impact. The higher the total amount of calcium and magnesium ion salts, the stronger the effect of precipitating detergent, which will reduce the washing function of detergent. Measure the electrical conductivity of water, and roughly calculate the hardness of the water (calcium, magnesium ion content), and adjust the washing conditions according to the hardnes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/22G01N21/49
Inventor 竺建军邓睿
Owner HANGZHOU KAMBAYASHI ELECTRONICS
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