Anti-dry heating control method of electric water heater and electric water heater

A technology of an electric water heater and a control method, which is applied in the electrical field, can solve the problems of not meeting the preset value of the system, danger, etc., and achieve the effects of avoiding the heater's dry burning, improving the service life, and avoiding the dry burning.

CN104776604BActive Publication Date: 2018-06-08WUHU MIDEA SMART KITCHEN APPLIANCE MFG CO LTD
5 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-06-08

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a dry-burn prevention control method for an electric water heater. The control method comprises the following steps: obtaining a temperature rise rate threshold; detecting the inner tank temperature of the electric water heater, and calculating the temperature rise rate according to the inner tank temperature; and calculating the temperature rise rate according to the temperature rise rate and The temperature rise rate threshold determines whether the electric water heater is dry-burned; if the electric water heater is dry-boiled, the electric water heater is controlled to stop heating; if the electric water heater is not dry-boiled, the temperature rise rate threshold is updated according to the temperature rise rate. The anti-dry heating control method of the electric water heater of the invention can prevent the electric water heater from being dry for a long time in an anhydrous state, and can avoid misjudgment of dry heating. The invention also discloses an electric water heater adopting the control method.
Need to check novelty before this filing date? Find Prior Art

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...

Examples

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] Such as figure 1 As sh...