US 11,306,936 B2Granted

Method, device and non-transitory computer readable storage medium for HVAC and fresh air control

OwnerBo Li, Yongfeng Xu +5inventors

InventorsBo Li, Yongfeng Xu, Meibing Xiong, Yongqiang Wan, Wentao Shu, Xiaolong Qian, Rufeng Chen

Life of this patent

Estimating the term…

Loading patent…

Abstract

A new fan and an anti-cold air control method and apparatus therefor, the method comprising the following steps: during the process of a new fan switching from a heating mode to a cooling mode, acquiring in real time the set temperature and air supply temperature of the new fan and the middle-portion temperature of the indoor heat exchanger of the new fan (S1); acquiring the current output wind speed and the set wind speed of the new fan (S2); and adjusting the output wind speed of the new fan on the basis of the set temperature, the air supply temperature, the middle-portion temperature of the indoor heat exchanger, the current output wind speed, and the set wind speed (S3).

Claims9

Dependent claims

A control method for a fresh air ventilator comprising an indoor heat exchanger facilitating heat exchange between outdoor and indoor air where the fresh air ventilator is located, comprises:

determining a process of switching the indoor heat exchanger from a heating mode to a refrigeration mode has been initiated by user;
in response to the process of switching, obtaining a set temperature by the user, a temperature of air delivered by the fresh air ventilator, and an external temperature of the indoor heat exchanger;
obtaining a current speed of the air delivered by the fresh air ventilator, and a set speed of the fresh air ventilator by the user;
in response to determination that the current speed of the air delivered by the fresh air ventilator is zero, selecting a larger one of the temperature value of the air delivered by the fresh air ventilator and the external temperature value of the indoor heat exchanger, and determining the selected value is greater than a first preset temperature;
in response to determination that the selected value is greater than the first preset temperature, adjusting the speed of the air delivered by fresh air ventilator to a first speed, wherein the first speed is greater than zero and less than the set speed;
in response to determination that the current speed of the air delivered by the fresh air ventilator is the first speed, determining whether the temperature of the air delivered by the fresh air ventilator is greater than a second preset temperature, wherein the second preset temperature is greater than the first preset temperature;
and
in response to determination that the temperature of the air delivered by the fresh air ventilator is greater than the second preset temperature, adjusting the speed of the air delivered by the fresh air ventilator to the set speed.

5 more elements

A non-transitory computer readable storage medium having stored thereon computer programs that, when executed by a processor, performs a control method for a fresh air ventilator comprising an indoor heat exchanger facilitating heat exchange between outdoor and indoor air where the fresh air ventilator is located, the control method comprises:

determining a process of switching the indoor heat exchanger from a heating mode to a refrigeration mode has been initiated by user;
in response to the process of switching, obtaining a set temperature by the user, a temperature of air delivered by the fresh air ventilator, and an external temperature of the indoor heat exchanger;
obtaining a current speed of the air delivered by the fresh air ventilator, and a set speed of the fresh air ventilator by the user;
in response to determination that the current speed of the air delivered by the fresh air ventilator is zero, selecting a larger one of the temperature value of the air delivered by the fresh air ventilator and the external temperature value of the indoor heat exchanger, and determining the selected value is greater than a first preset temperature;
in response to determination that the selected value is greater than the first preset temperature, adjusting the speed of the air delivered by fresh air ventilator to a first speed, wherein the first speed is greater than zero and less than the set speed;
in response to determination that the current speed of the air delivered by the fresh air ventilator is the first speed, determining whether the temperature of the air delivered by the fresh air ventilator is greater than a second preset temperature, wherein the second preset temperature is greater than the first preset temperature;
and
in response to determination that the temperature of the air delivered by the fresh air ventilator is greater than the second preset temperature, adjusting the speed of the air delivered by the fresh air ventilator to the set speed.

5 more elements

A control device for a fresh air ventilator comprising an indoor heat exchanger facilitating heat exchange between outdoor and indoor air where the fresh air ventilator is located, comprising:

a temperature obtaining module, configured to, during a process of switching the indoor heat exchanger from a heating mode to a refrigeration mode, obtain a set temperature by the user, a temperature of air delivered by the fresh air ventilator, and an external temperature of the indoor heat exchanger;
a speed obtaining module, configured to obtain a current speed of the air delivered by the fresh air ventilator and a set speed of the fresh air ventilator by the user;
and
a speed adjusting module, configured to adjust the speed of the air delivered by the fresh air ventilator based on the set temperature, the temperature of the air delivered by the fresh air ventilator, the external temperature of the indoor heat exchanger, the current speed of the air delivered by the fresh air ventilator and the set speed;
the control device is configured for:
in response to determination that the current speed of the air delivered by the fresh air ventilator is zero, selecting a larger one of the temperature value of the air delivered by the fresh air ventilator and the external temperature value of the indoor heat exchanger, and determining the selected value is greater than a first preset temperature;
and
in response to determination that the current speed of the air delivered by the fresh air ventilator is the first speed, determining whether the temperature of the air delivered by the fresh air ventilator is greater than a second preset temperature, wherein the second preset temperature is greater than the first preset temperature;
the speed adjusting module is further configured for:
in response to determination that the selected value is greater than the first preset temperature, adjusting the speed of the air delivered by fresh air ventilator to a first speed, wherein the first speed is greater than zero and less than the set speed;
and
in response to determination that the temperature of the air delivered by the fresh air ventilator is greater than the second preset temperature, adjusting the speed of the air delivered by the fresh air ventilator to the set speed.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/490,590Filed 9 Oct 2017
Priority: CN 201710653474.X2 Aug 2017
Published: US 2020/0003446 A12 Jan 2020
Granted: 19 Apr 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

F24F 11/49
For purposes related to the operation of the system, e.g. for safety or monitoring: ensuring correct operation, e.g. by trial operation or…
F24F 11/67
For selecting an operating mode: switching between heating and cooling modes
F24F 11/74
For controlling the supply of treated air, e.g. its pressure: for controlling air flow rate or air velocity
F24F 11/81
For controlling the temperature of the supplied air: by controlling the air supply to heat-exchangers or bypass channels

Family

US 2020/0003446 A1Pre-grant publication · published 2 Jan 2020
US 11,306,936 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key