Washing machine as well as water level and overweight detection device and method

A detection device and washing machine technology, applied in the field of washing machines, can solve problems such as low production efficiency, difficulty in installation, complex circuit structure, etc., and achieve the effects of saving space, easy installation, and simplified circuit structure

Inactive Publication Date: 2015-06-24
QINGDAO HAIER WASHING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the circuit structure is complicated, and it is not easy to install, and the production efficiency is low

Method used

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  • Washing machine as well as water level and overweight detection device and method
  • Washing machine as well as water level and overweight detection device and method
  • Washing machine as well as water level and overweight detection device and method

Examples

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Embodiment Construction

[0026] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] Such as figure 1 As shown, this embodiment proposes a water level and weight detection device for a washing machine, including an integrated water level sensor and a bucket switch, wherein the water level sensor includes an LC oscillation circuit at least composed of a capacitor and an inductance, and the LC oscillation circuit includes At least one capacitor with variable capacitance value and / or at least one inductor with variable inductance value, the bump switch is connected to the LC oscillating circuit. The LC oscillating circuit is connected to the signal processing circuit on the control board through the connection line, and the signal processing circuit performs signal processing and transmits the processed signal to the control terminal.

[0028] The signal processing circuit includes a signal amplification circuit and a fil...

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PUM

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Abstract

The invention relates to a washing machine as well as a water level and overweight detection device and method. The device comprises a water level sensor and a bucket collision switch which are integrated together, wherein the water level sensor comprises an LC oscillating circuit composed of a capacitor and an inductor; the LC oscillating circuit comprises at least one capacitor with a changeable capacitance value and / or at least one inductor with a changeable inductance value; the bucket collision switch is connected into the LC oscillating circuit; the LC oscillating circuit is used for outputting a signal to a control end through a signal processing circuit. The washing machine integrates water level and overweight detection and one signal processing circuit and a connection wire are shared to be connected with the control end, and the detection is not influenced with each other; the circuit structure simplified, and cost and energy sources are saved; the water level sensor and the bucket collision switch are integrated on one mounting seat so that the space is saved, the installation is easy, the production efficiency is improved and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of washing machines, and in particular relates to a washing machine and a water level and weight detection device and method thereof. Background technique [0002] At present, in the washing machine industry, the water level is generally detected by the water level sensor, and the detection signal is connected to the control terminal through the signal line, and the control terminal controls the opening and closing of the water inlet valve according to the received signal; the load of the washing machine is detected by the bump switch. , the bump switch is connected to the control terminal through the signal line, and the control terminal judges whether the load is heavy according to the received signal. However, the existing water level sensor and the bump switch are two separate sensors that are installed on the control panel seat of the washing machine respectively. Connect to the main control board thr...

Claims

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Application Information

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IPC IPC(8): D06F39/00
CPCD06F34/18D06F34/22
Inventor 杨林高秋英方大丰徐杰
Owner QINGDAO HAIER WASHING MASCH CO LTD
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