PTC type electric heating method and device and air conditioner

A technology of electric heating and electric heater, which is applied in the field of equipment and air conditioning, PTC electric heating method, can solve the problem of low heating safety of PTC electric heater, reduce frequent start and stop of PTC, optimize control logic, and ensure safety Effects on Sex and Reliability

Active Publication Date: 2021-01-08
GREE ELECTRIC APPLIANCES INC
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a PTC electric heating method, equipment and air conditioner to solve the problem of low heating safety of PTC electric heaters in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • PTC type electric heating method and device and air conditioner
  • PTC type electric heating method and device and air conditioner
  • PTC type electric heating method and device and air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0055] figure 1 It is a flowchart of a PTC electric heating method shown according to an exemplary embodiment, such as figure 1 As shown, the method includes:

[0056] Step S11, detecting the return air velocity of the environment where the PTC electric heater is located, and the temperature of the PTC heating unit;

[0057] Step S12, according to the wind speed of the return air and the temp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a PTC (positive temperature coefficient) type electric heating method and device and an air conditioner. According to the PTC type electric heating method, based on temperature detection of a PTC heating unit, a speed of return air in an environment of a PTC electric heater is detected; and when the PTC heating unit is in overloaded operation at a superhigh temperature, the working state of the PTC electric heater and air output of a direct-current variable-frequency fan are controlled to change the temperature of return air of the environment of the PTC electric heater, thereby guaranteeing the safety and reliability of PTC heating. In addition, according to the PTC type electric heating method and the device provided by the invention, a PTC heating control logicis optimized, the temperature of return air of the environment of the PTC elecrtic heater is adjusted, and the environment temperature is uniformly controlled. In this way, frequency start and stop ofPTC caused by over protection or under protection of PTC heating are reduced; and poor user experiences caused by a sudden change of the environment temperature are avoided.

Description

technical field [0001] The invention relates to the technical field of electrical intelligent control, in particular to a PTC electric heating method, equipment and air conditioner. Background technique [0002] The air conditioner is a device that adjusts the air temperature. When the ambient temperature is low, the air conditioner heating mode is activated; one of the heating modes is electric heating. There are various types of electric heating, and the heating speed and efficiency of electric heating are high. However, the safety factor is low, and strong safety control logic is required. [0003] There is an auxiliary electric heating heating type called PTC (positive temperature coefficient, positive temperature coefficient) electric heating. PTC material is a typical temperature-sensitive semiconductor resistance. When it exceeds a certain temperature (Curie temperature), its The resistance value increases stepwise with the increase of temperature; PTC electric heate...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F24F11/30F24F11/61F24F11/64F24F11/74F24F11/80F24F11/88F24D13/02F24D19/10F24F110/10
CPCF24D13/02F24D19/1096F24F11/30F24F11/61F24F11/64F24F11/74F24F11/80F24F11/88F24F2110/10Y02B10/70Y02B30/70
Inventor 张永伟周江峰王严杰尹永存徐天赐杨清
Owner GREE ELECTRIC APPLIANCES INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap