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Electric heating type water heater

An electric heating and water heater technology, applied in electrical components, circuit devices, emergency protection circuit devices, etc., can solve problems such as loss of confidence in electric heating water heaters, and achieve the effect of promoting popularization and improving safety.

Pending Publication Date: 2018-12-25
乐山加兴科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current problem with this kind of power-off protection device is that if the power supply is disconnected after an electric leakage accident has occurred, the user may suffer certain injuries due to the moment of electric leakage, and may lose confidence in the electric heating water heater.

Method used

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  • Electric heating type water heater
  • Electric heating type water heater

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Embodiment Construction

[0010] Such as figure 1 As shown, an electric heating water heater of the present invention includes a power switch and a heating device, and is characterized in that it also includes a water level sensor, a current detection circuit and a control switch; the heating device is connected to the power switch; the water level sensor The output end of the device is connected to the input end of the current detection circuit; the output end of the current detection circuit is connected to the input end of the control switch; the control switch is connected to the power switch;

[0011] Such as figure 2 As shown, the current detection circuit is composed of the first PMOS transistor MP1, the second PMOS transistor MP2, the third PMOS transistor MP3, the fourth PMOS transistor MP4, the fifth PMOS transistor MP5, the sixth PMOS transistor MP6, the first NMOS transistor MN1 , the second NMOS transistor MN2, the third NMOS transistor MN3, the fourth NMOS transistor MN4, the fifth NMOS...

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Abstract

The invention belongs to the technical field of automatic control, and concretely relates to an electric heating type water heater. The electric heating type water heater of the invention includes a power switch and a heating device. The water heater is characterized in that a water level sensor, a current detection circuit and a control switch are also included. The heating device is connected tothe power switch. The output end of the water level sensor is connected to the input end of the current detection circuit. The output end of the current detection circuit is connected to the input end of the control switch. The control switch is connected to the power switch. The beneficial effects of the water heater are that the electric heating type water heater can be automatically powered off when being in use, and so the safety of the electric heating type water heater is greatly improved, users are completely free from worries, and the popularization of the electric heating type waterheater is benefitted. The water heater of the invention is especially suitable for electric heating type water heaters.

Description

technical field [0001] The invention belongs to the technical field of automatic control, and in particular relates to an electric heating water heater. Background technique [0002] Electric heating water heaters have been widely used due to their convenience, but due to the heating method, most people will question their safety, which hinders the further promotion of electric heating water heaters. Current electric heating water heaters generally have a leakage protection device, but the principle of the leakage protection device usually used is to detect in real time whether there is a leakage current. If a leakage current is detected, the power supply is immediately disconnected to achieve the purpose of power failure protection. . However, the current problem with this power-off protection device is that if the power supply is disconnected after an electric leakage accident has occurred, the user may suffer certain injuries due to the moment of electric leakage, and ma...

Claims

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Application Information

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IPC IPC(8): H02H5/08
CPCH02H5/08
Inventor 虎绍伦马朝波马朝明
Owner 乐山加兴科技有限公司
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