Over-temperature protection circuit pf direct-current water heater, power supply circuit of direct-current water heater and direct-current water heater

An over-temperature protection circuit and DC power supply technology, which is applied to emergency protection circuit devices, fluid heaters, emergency protection devices that automatically disconnect, etc., can solve the problem of low safety of water heaters and achieve the effect of improving safety

Pending Publication Date: 2021-07-20
QINGDAO HAIER SMART TECH R & D CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present disclosure provides an over-temperature protection circuit, a power supply circuit, and a DC water heater to solve the technical problem of low safety of the water heater

Method used

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  • Over-temperature protection circuit pf direct-current water heater, power supply circuit of direct-current water heater and direct-current water heater

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Embodiment Construction

[0020] In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

[0021] The terms "comprising" and "having" and any variations thereof in the description and claims of the embodiments of the present disclosure are intended to cover non-exclusive inclusion.

[0022] Such as figu...

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Abstract

The invention relates to the technical field of water heaters, and discloses an over-temperature protection circuit of a direct-current water heater. The over-temperature protection circuit of the direct-current water heater comprises a relay and a temperature breaker, and a contact of the relay is connected with a direct-current power supply circuit of a heating pipe of the water heater and used for controlling on-off of the direct-current power supply circuit of the heating pipe. The first end of the temperature breaker is connected with the first end of a relay coil, and the second end of the temperature breaker and the second end of the relay coil are both connected to a power supply. By adopting the over-temperature protection circuit of the direct-current water heater, the safety of the water heater can be improved. The invention further discloses a power supply circuit of the direct-current water heater and the direct-current water heater.

Description

technical field [0001] The present application relates to the technical field of water heaters, for example, it relates to an over-temperature protection circuit of a DC water heater, a power supply circuit of a DC water heater, and the water heater. Background technique [0002] At present, my country's safety standards for water storage electric water heaters clearly stipulate that closed water heaters must be equipped with a thermal breaker. The action of the thermal breaker should be through a switch that is separated from the adjustment function of the thermal controller to ensure that the power supply is cut off in time when the water heater is abnormally controlled. . At present, in order to prevent accidents such as explosion or fire caused by continuous heating and excessive temperature of the water heater, a thermal breaker is usually connected in series in the heating circuit of the water heater. Under normal circumstances, the thermostat does not operate, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20H02H5/04
CPCF24H9/2021H02H5/04
Inventor 杨少强董玮利俞国新袁宇波陈庆杨景刚肖小龙魏星琦李超李小娇
Owner QINGDAO HAIER SMART TECH R & D CO LTD
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