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Fresh air conditioner and control method thereof

A control method and air conditioner technology, applied in heating and ventilation control systems, control input involving air characteristics, space heating and ventilation control input, etc., can solve the problem that the temperature of the air outlet cannot meet the user's temperature comfort requirements, etc. Achieve the effect of meeting comfort requirements and improving freshness

Pending Publication Date: 2022-07-12
HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a fresh air air conditioner and its control method, which can effectively solve the problem in the prior art that directly controlling the outlet air temperature of the air conditioner cannot meet the user's requirements for temperature comfort

Method used

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  • Fresh air conditioner and control method thereof
  • Fresh air conditioner and control method thereof

Examples

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Effect test

example 1

[0168] Example 1: Parameter setting of a 3-horsepower floor-standing model: △T1=1℃, E1=1.5℃, t1=60s, t2=30s, △F=5Hz, △R=100rpm, SET*_s defaults to 16℃, K3 = 0.0033, K4 = 1.3. There is a fresh air device, and the outlet air of the fresh air is mixed with the air outlet air of the air conditioner to form the mixed air outlet temperature. In addition to the conventional temperature sensors of the air conditioner, there are also an outlet temperature sensor and an outlet air speed sensor to detect the outlet air temperature and outlet air speed respectively (if the fresh air device is turned on, the mixed air outlet temperature and mixed air outlet wind speed).

[0169]In the user cooling mode (the set temperature Ts is 26°C, and the wind speed is automatic), the SET* control function of the standard effective temperature of the air outlet is turned on. Detected outlet air temperature T_out=14°C, outlet air speed Va_out=3m / s, return air temperature Ta=27°C, set temperature diffe...

example 2

[0170] Example 2: Parameter setting of a 3-horsepower floor-standing model: △T1=1℃, E1=1.5℃, t1=60s, △F=5Hz, △R=100rpm, SET*_s defaults to 16℃, K1=1.2, K_HF =3°C, K3=0.0033, K4=1.3. A fresh air device is provided, and the outlet air of the fresh air is mixed with the outlet air of the air conditioner to form the outlet air temperature. In addition to the conventional various temperature sensors of the air conditioner, there is also an outlet wind speed sensor to detect the wind speed (when the fresh air is turned on, the mixed wind speed is detected).

[0171] In the user cooling mode (the set temperature Ts is 26°C and the wind speed is automatic), the SET* control function of the standard effective temperature of the air outlet is turned on. Detect the evaporation temperature Te=10°C, bring into formula 2 (T_out=1.2*Te+0) (K_HF=0°C when the fresh air device is not turned on), calculate the outlet air temperature T_out=12°C, and outlet air speed Va_out=3m / s, return air tem...

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Abstract

The invention discloses a fresh air conditioner and a control method thereof. The fresh air conditioner comprises an outdoor unit, a compressor, an indoor unit, a fresh air device, an air outlet temperature sensor and an air outlet speed sensor. The air outlet temperature sensor and the air outlet speed sensor are used for detecting the air outlet temperature and the air outlet speed of the indoor unit correspondingly. The controller is configured to calculate the standard effective temperature of the center of an air outlet airflow zone according to the air outlet temperature and the air outlet speed; when the standard effective temperature exceeds the preset standard effective temperature range, whether the fresh air device is started or whether the set temperature difference reaches the preset temperature difference is judged, and the rotating speed of a fan and the frequency of a compressor are controlled according to the judgment result; and when the standard effective temperature does not exceed the preset standard effective temperature range, the rotating speed of the fan and the frequency of the compressor are controlled to be kept unchanged. According to the air conditioner with the fresh air function, through combined control over the air temperature and the air speed, the temperature blown to the body of a user meets the requirement of the user for temperature comfort.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a fresh air air conditioner and a control method thereof. Background technique [0002] The air conditioner only takes temperature as the control target. If the user needs to blow the air out of the air conditioner directly to the user, when the wind speed is constant, the lower the temperature of the air blowing to the user, the cooler the human body feels. When the temperature blowing to the user is constant, the higher the wind speed, the cooler the human body feels. This is because what the human body actually feels is the feeling after the coupling of wind temperature and wind speed, not the feeling generated by a single temperature. [0003] In the prior art, the operating frequency of the compressor of the air conditioner and the actual indoor air outlet temperature are detected, and the outlet air temperature set by the user is compared with the indoor actual ai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F7/007F24F11/64F24F11/89F24F11/74F24F11/80F24F110/10F24F110/30F24F120/10
CPCF24F7/007F24F11/64F24F11/89F24F11/74F24F11/80F24F2110/10F24F2110/30F24F2120/00Y02B30/70
Inventor 王军刘通巩杨
Owner HISENSE (SHANDONG) AIR CONDITIONING CO LTD