Water level sensor for washing machine

Abstract

The invention refers to washer water-level equipment. The fluid comes in and goes out the air space with the increase and decrease of the water level; the under box body has inflow mouth transferringthe fluid pressure; the top one apart combines on the top side of the under one, the hollow circular line axis set in the middle of the top one, the baffle can move up and down with the increase and decrease of the fluid pressure, set on top of the under one; the iron core can move down with the motion of the baffle; the coil is wound on the line axis outside. It can bring the following effects; the water-level induction equipment and coil inductance determine the water level and its output frequency character, respectively.

Description

technical field [0001] The invention relates to a washing machine, in particular to a water level sensor for sensing the washing machine by sensing the water level supplied in the washing tank so that the water supply and drainage work of each washing process can be carried out smoothly. Background technique [0002] Devices such as general automatic washing machines are all provided with water level sensing devices. The above-mentioned water level sensing device outputs the automatically sensed water level to the control device, so that the control device can control water supply and drainage. The above-mentioned water level sensing device can open the water supply valve according to the amount of washing objects in the washing tank to supply water into the washing tank; as the water level of the above-mentioned water supply rises, the air pressure will also rise, so the above-mentioned water level sensing device cuts off the water supply valve to interrupt the water supply...

AI Technical Summary

Problems solved by technology

[0010] However, in the winding structure of the coil 60 in the prior art, when the coil 60 wound on the above-mentioned bobbin 50 is wound (winding) operation, the alignment of the above-mentioned coil 60 often occurs. when it occurs (see Figure 2b ), will cause the output frequency characteristics to change with the change of the inductance L value

If you want to obtain the corresponding frequency characteristics, you need to combine multiple capacitors with different capacities, which eventually leads to the problem of low production efficiency.

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