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Control method for preventing dry burning of electric water heater and electric water heater

The technology of an electric water heater and a control method, which is applied in the field of electrical appliances, can solve problems such as failure to meet system preset values ​​and dangers, and achieve the effects of avoiding dry heating of the heater, improving service life, and ensuring safety

Active Publication Date: 2015-07-15
WUHU MIDEA SMART KITCHEN APPLIANCE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because the preset value of the system is not met, the heater power will not be cut off
it's very dangerous

Method used

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  • Control method for preventing dry burning of electric water heater and electric water heater
  • Control method for preventing dry burning of electric water heater and electric water heater
  • Control method for preventing dry burning of electric water heater and electric water heater

Examples

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Embodiment Construction

[0028] 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.

[0029] The electric water heater and its anti-dry-boiling control method according to the embodiments of the present invention are described below with reference to the accompanying drawings.

[0030] Firstly, the dry-boiling prevention control method of the electric water heater according to the embodiment of the present invention will be described. figure 1 It is a flow chart of a method for controlling dry heating of an electric water heater according to an embodiment of the present invention.

[0031] like figure 1 As shown...

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Abstract

The invention discloses a control method for preventing dry burning of an electric water heater. The control method comprises the following steps of obtaining a threshold value of temperature rising speed; detecting the temperature of an inner container of the electric water heater, and calculating the temperature rising speed according to the temperature of the inner container; judging whether the electric water heater is in dry burning or not according to the temperature rising speed and the threshold value of the temperature rising speed; controlling the electric water heater to stop heating if the electric water heater is in dry burning; updating the threshold value of the temperature rising speed according to the temperature rising speed if the electric water heater is not in dry burning. According to the control method for preventing the dry burning of the electric water heater, disclosed by the invention, the electric water heater can be prevented from being subjected to the dry burning for a long time under a no-water state, and the misjudgment of the dry burning can be avoided. The invention also discloses the electric water heater adopting the control method.

Description

technical field [0001] The invention belongs to the technical field of electrical appliances, and in particular relates to a dry-burn prevention control method for an electric water heater and an electric water heater adopting the method. Background technique [0002] With the improvement of living standards, people have more and more requirements for the use of hot water, for example, requiring a large amount of hot water, comfort during use (no hot and cold) and so on. In response to users' pursuit of use, electric water heaters have maintained rapid development in recent years. Prolonging the service life of electric water heaters has become an important indicator of consumer satisfaction. As a key part of the electric water heater, the heater's life directly affects the life of the electric water heater, and the most important factor affecting the life of the heater is dry heating (that is, working in an anhydrous state), so how to ensure that the inner tank is dry with...

Claims

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Application Information

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IPC IPC(8): F24H9/20
Inventor 李硕王明刘伟君
Owner WUHU MIDEA SMART KITCHEN APPLIANCE MFG CO LTD
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