Door switch circuit used for household appliances and the household appliances

A technology for household appliances and door switches, which is applied in cleaning equipment, applications, household appliances, etc., can solve the problems of insufficient safety and low reliability of household appliances, and achieve reduced power consumption, improved safety, and guaranteed use The effect of electrical safety

Inactive Publication Date: 2016-07-20
FOSHAN SHUNDE MIDEA WASHING APPLIANCES MFG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when problems such as MCU failure occur, the control of the load according to the state of the door switch will also fail, so the reliability of the above scheme is low, and the safety of home appliances is not high enough.

Method used

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  • Door switch circuit used for household appliances and the household appliances
  • Door switch circuit used for household appliances and the household appliances
  • Door switch circuit used for household appliances and the household appliances

Examples

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Embodiment Construction

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0022] The door switch circuit for household appliances and the household appliances according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0023] figure 1 It is a schematic block diagram of a door switch circuit for household appliances according to an embodiment of the present invention.

[0024] The household electrical appliance in the embodiment of the present invention may include a plurality of controllable switches and a plurality of loads, and each co...

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PUM

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Abstract

The invention discloses a door switch circuit used for household appliances and the household appliances. The door switch circuit comprises a door switch, a door switch detection circuit and a controller, wherein one end of the door switch is connected to a direct current control power supply and the other end is connected to a weak current control loop of each controllable switch; the door switch responds to door opening or door closing motion of the household appliances; an input terminal of the door switch detection circuit is connected to the other end of the door switch and is used for detecting a state of the door switch so as to acquire the door opening or door closing motion of the household appliances; an input terminal of the controller is connected to an output terminal of the door switch detection circuit; a plurality of control output terminals of the controller are correspondingly connected to the weak current control loop of each controllable switch; when determining that the door of each household appliance is opened, the controller makes each controllable switch disconnect through controlling the weak current control loop of each controllable switch; and when the door of each household appliance is opened, the door switch is in a disconnected state so that the weak current control loop of each controllable switch is in an outage state and each controllable switch is forced to be disconnected.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a door switch circuit for household appliances and a household appliance. Background technique [0002] For some household appliances with a door structure (such as dishwashers, etc.), if the user suddenly opens the door when the appliance is running, there may be certain safety hazards, such as the rotating mechanism inside the appliance or the splashing of hot water etc. are potential security threats. At present, in the implementation schemes of some home appliances, by setting the door switch to connect with the MCU (MicroControllerUnit, micro control unit), when the home appliance opens or closes, the MCU can recognize the opening or closing of the home appliance according to the corresponding state of the door switch. Action, and can actively control the load to close when the door of the home appliance is opened, thus improving the safety of the home applianc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042A47L15/00
CPCA47L15/0049G05B19/042
Inventor 管庆军高峰黄华明黎铭峰
Owner FOSHAN SHUNDE MIDEA WASHING APPLIANCES MFG CO LTD
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