An electric water heater control system with intelligent power off

A technology for electric water heaters and control systems, applied to fluid heaters, lighting and heating equipment, etc., which can solve problems such as damage to the trip unit, failure of the leakage detection system, and unstable reliability, so as to prolong the use time and save backup power The effect of electric power and convenient operation

Active Publication Date: 2019-08-13
GUANGDONG MACRO GAS APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The leakage protection plug works in a humid environment in the bathroom, resulting in unstable reliability, and there is a risk of failure of the leakage detection system and damage to the release

Method used

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  • An electric water heater control system with intelligent power off

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Embodiment Construction

[0031] In order to facilitate those skilled in the art to better understand the essence of the present invention, the specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] Such as figure 1 As shown, an electric water heater control system with intelligent power-off includes: a three-pole leakage protection plug power cord 1 that can be automatically reset, a single-chip microcomputer 2, an electric heater 3, a first relay 4, and a second relay 5, which are used to realize An isolated communication module 6 for strong and weak current isolation and communication, a chargeable and dischargeable power supply module 7 , a power supply detection module 8 , and a hardware power-on reset module 9 .

[0033] Wherein, the power line 1 of the three-pole leakage protection plug is connected to the power supply line of the electric water heater. The first relay 4 is connected between the L pole o...

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PUM

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Abstract

The invention discloses an electric water heater control system capable of being powered off intelligently. The electric water heater control system comprises a three-pole leakage protection plug power cord, a single chip, an electric heater, a first relay, a second relay, an isolating communication module, a chargeable and dischargeable power supply module, a power detection module and a hardware power-on resetting module, wherein the three-pole leakage protection plug power cord can be reset automatically; the isolating communication module is used for realizing strong electricity and weak electricity isolation and communication. When the electric water heater control system is in work, the isolating communication module can be triggered by a remote controller, a machine body key or a remote control terminal which is connected with the single chip, so that the isolating communication module is capable of transmitting a power-off signal or a power-on signal in order to realize disconnection and connection of the three poles (a zero wire, a fire wire and a ground wire) of the three-pole leakage protection plug power cord, so a user can easily operate the leakage protection plug power cord which is mounted at a high position, safe bathing of the user is guaranteed, and the operation is convenient.

Description

technical field [0001] The invention relates to the technical field of electric water heater safety control, in particular to an electric water heater control system with intelligent power-off. Background technique [0002] In the prior art, after the user's water behavior is collected through the water flow sensor, the electric heater is driven to be powered off through logic control, so as to ensure that the user will not get an electric shock due to electric leakage. However, because the power line of the leakage protection switch and the controller are still charged, and some leakage accidents are caused by poor grounding or electrification of the ground wire, it is impossible to completely guarantee the user's bathing safety, and there is a safety risk. [0003] In order to improve safety performance, some users press the test button of the leakage protection plug to disconnect the three poles (zero, fire, ground) of the electric water heater before taking a bath. After...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H9/20
CPCF24H9/2014
Inventor 余少言仇明贵潘大伟徐扬
Owner GUANGDONG MACRO GAS APPLIANCE
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