CN109855262B - Cold air prevention control method for air conditioner and air conditioner using same - Google Patents
Cold air prevention control method for air conditioner and air conditioner using same Download PDFInfo
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- CN109855262B CN109855262B CN201910161216.9A CN201910161216A CN109855262B CN 109855262 B CN109855262 B CN 109855262B CN 201910161216 A CN201910161216 A CN 201910161216A CN 109855262 B CN109855262 B CN 109855262B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a cold air prevention control method of an air conditioner and the air conditioner using the method. The air conditioner cold air prevention control method predicts the air inlet temperature of an inner machine through the pipe temperature and the environment temperature of the inner machine in a cold air prevention mode, calculates the heat generated by the air conditioner in unit time under the pipe temperature of the current inner machine, meets the maximum air quantity corresponding to the temperature set by a user, and adjusts the rotating speed of a fan motor according to the maximum air quantity. The invention can lead the air conditioner to emit hot air when the air conditioner is started, or reduce the waiting time of the hot air emission, thereby improving the user experience.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a cold air prevention control method of an air conditioner and the air conditioner using the method.
Background
When the ordinary air conditioner is started under the heating condition, the inner machine blows out cold air, the air conditioner runs for a period of time, hot air can be blown out along with the rise of the temperature of the coil pipe of the inner machine, and the user experience is poor due to the fact that the air conditioner runs for a period of time. In order to avoid the situation, the existing cold air prevention function of the inner machine is that the fan does not rotate firstly after the inner machine is started, and the fan is started after the temperature of the inner machine reaches the target temperature, namely the heat exchanger of the inner machine fully exchanges heat, so that the blown air is hot air. Although the function can not blow out cold air in the heating condition, the user needs to wait for several minutes before coming out of the hot air when starting the machine to use the heating function, and the user experience is poor.
Disclosure of Invention
The invention provides a cold air prevention control method for an air conditioner and the air conditioner using the same, which aim to solve the problem that the existing air conditioner needs to generate hot air for a certain time under the heating condition.
The invention provides a cold air prevention control method of an air conditioner, wherein in the cold air prevention mode, when the air conditioner operates in a heating working condition, the air inlet temperature of an inner machine is predicted according to the temperature of an inner machine pipe and the ambient temperature, the heat generated by the air conditioner in unit time under the current inner machine pipe temperature is calculated, the heat meets the maximum air volume corresponding to the temperature set by a user, and the rotating speed of a fan motor is adjusted according to the maximum air volume.
When the inner machine is provided with an electric heating belt, the control method comprises the following steps:
s11, calculating the maximum air quantity which can be met by the air outlet temperature set by a user and is generated by the electric heating belt according to the environment temperature, and determining the initial rotating speed of a fan motor according to the maximum air quantity;
s12, detecting the temperature of the inner machine pipe in real time, judging whether the temperature of the inner machine pipe reaches a target temperature or not, and if so, closing the electric heating belt and exiting from a cold air prevention mode; and when the current temperature is not reached, adjusting the rotating speed of the fan motor according to the current inner machine pipe temperature, the ambient temperature and the heat output by the electric heating belt.
When the inner machine is not provided with the electric heating belt, the control method comprises the following steps:
s21, judging whether the temperature of the inner fan reaches a set temperature threshold value or not, and if not, not starting the inner fan; when the temperature reaches the preset temperature, the fan of the internal machine is started, the heat generated by the current internal machine in unit time is calculated according to the temperature of the pipe of the internal machine and the ambient temperature, the heat reaches the maximum air volume which can be met by the air outlet temperature set by a user, and the initial rotating speed of the motor of the internal machine is determined according to the maximum air volume;
s22, detecting the temperature of the inner machine pipe in real time, judging whether the temperature of the inner machine pipe reaches a target temperature or not, and exiting from a cold air prevention mode when the temperature of the inner machine pipe reaches the target temperature; and when the temperature does not reach the preset temperature, calculating the heat which can be generated in unit time at the current inner machine pipe temperature and the air volume which can be met by the heat according to the current inner machine pipe temperature and the environment temperature, and adjusting the rotating speed of the fan motor according to the air volume.
In the cold air prevention mode, the rotating speed of the inner fan motor is gradually increased along with the starting time.
The invention also provides an air conditioner which uses the cold-proof air control method when operating in a heating condition.
The invention has the following beneficial effects:
the cold air prevention control method provided by the invention controls the opening and/or the rotating speed of the fan of the indoor unit of the air conditioner through the parameters such as the set temperature of a user, the set environment temperature, the set target temperature, the set pipe temperature and the like, so that hot air can be discharged when the air conditioner is started, or the waiting time of hot air discharge is reduced, and the user experience is improved.
Drawings
FIG. 1 is a flow chart of a first embodiment of a control method of the present invention;
fig. 2 is a flowchart of a control method according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and examples. It should be understood that the following specific examples are only for illustrating the present invention and are not to be construed as limiting the present invention.
When the air conditioner operates in a heating working condition, a cold air prevention mode is added, the air inlet temperature of the inner machine is predicted according to the temperature of the inner machine pipe and the ambient temperature, the heat generated by the air conditioner at the current inner machine pipe temperature in unit time is calculated, the heat meets the maximum air quantity corresponding to the temperature set by a user, and the rotating speed of the fan motor is adjusted according to the maximum air quantity.
FIG. 1 is a flow chart of a first embodiment of the present invention. The air conditioner indoor unit is provided with the electric heating belt, when the air conditioner is operated under the heating working condition, the maximum air quantity which can meet the air outlet temperature set by a user and is required to be achieved under the current indoor unit pipe temperature is calculated by adopting the electric heating belt instantaneous heating and the indoor unit pipe temperature data fed back by the pipeline temperature sensing bulb in real time, and the purpose of enabling the air to be discharged out when the air conditioner is started is finally achieved by controlling the rotating speed of the motor through the maximum air quantity data. The hot air volume is gradually increased along with the heat exchange degree of the internal machine. The cold air prevention control method in the embodiment comprises the following steps:
s11, a user starts up the air conditioner, selects a heating mode to operate and sets the room temperature, an electric heating belt is started, an air outlet is opened, an outer machine compressor is started, the environment temperature is sensed through an environment temperature sensing bag, the heat generated by the electric heating belt in unit time is a fixed value, the system calculates the maximum air volume which can be reached by the set air outlet temperature of the user according to the heat generated by the electric heating belt, the initial rotating speed of a fan motor is determined according to the maximum air volume, and the motor operates according to the initial rotating speed;
s12, detecting the temperature of the inner machine pipe in real time, judging whether the temperature of the inner machine pipe reaches a target temperature or not, and if so, closing the electric heating belt and exiting from a cold air prevention mode; when the temperature of the air inlet is not reached, the air inlet temperature is predicted according to the current temperature of the inner machine pipe and the environment temperature, the heat which can be generated in unit time under the current temperature of the inner machine pipe is calculated, and the rotating speed of the fan motor is adjusted by combining the heat output by the electric heating belt. The detection period can be set by self until the temperature of the inner machine tube reaches the target temperature and the cold air prevention mode is exited. And after the cold air prevention mode is exited, the air conditioner operates according to the normal heating working condition.
FIG. 2 is a flow chart of a second embodiment of the present invention. The air conditioner indoor unit in the embodiment is not provided with an electric heating belt. And at the initial operation stage of the heating working condition of the air conditioner, when the temperature of the inner machine pipe does not reach the set temperature threshold value, the fan of the inner machine is not turned on.
When the temperature of the inner machine pipe reaches a set temperature threshold value, the fan is started, the initial rotating speed of the fan motor calculates the heat generated by the inner machine in unit time at present according to the temperature of the inner machine pipe and the ambient temperature, and the heat reaches the maximum air volume which can be met by the air outlet temperature set by a user. The hot air volume is gradually increased along with the heat exchange degree of the internal machine. The cold air prevention control method in the embodiment comprises the following steps:
s21, when the heating working condition is operated, judging whether the temperature of the inner fan reaches a set temperature threshold value, and if not, turning on the inner fan; when the temperature reaches the preset temperature, the fan of the internal machine is started, the heat generated by the current internal machine in unit time is calculated according to the temperature of the pipe of the internal machine and the ambient temperature, the heat reaches the maximum air volume which can be met by the air outlet temperature set by a user, and the initial rotating speed of the motor of the internal machine is determined according to the maximum air volume;
s22, detecting the temperature of the inner machine pipe in real time, judging whether the temperature of the inner machine pipe reaches a target temperature or not, and exiting from a cold air prevention mode when the temperature of the inner machine pipe reaches the target temperature; when the temperature of the current inner machine pipe is not reached, the heat which can be generated in unit time under the current inner machine pipe temperature and the air volume which can be met by the heat are calculated according to the current inner machine pipe temperature and the environment temperature, and the rotating speed of the fan motor is adjusted accordingly. The detection period can be set by self until the temperature of the inner machine tube reaches the target temperature and the cold air prevention mode is exited. And after the cold air prevention mode is exited, the air conditioner operates according to the normal heating working condition.
In the second embodiment, the fan can be started only by waiting for the temperature of the inner fan tube to reach the set temperature threshold, so that the waiting time of hot air output is greatly reduced.
The set temperature threshold in this embodiment is the temperature of the coil of the internal machine that meets the minimum speed heat exchange requirement of the motor, and the target temperature is the temperature of the coil of the internal machine that normally works when the internal machine completely exchanges heat.
In the invention, the conversion of the motor rotating speed and the air flow is determined through experiments, and the air flow is related to the size of the shell of the fan volute.
The invention has the advantages that: the temperature sensing bulb is adopted to detect the temperature data of the inner machine pipe and the environment in real time, the maximum air output of the inner machine fan under the condition of meeting the temperature set by a user is calculated according to the heat generated by the inner machine in unit time to set the initial rotating speed of the fan motor, the rotating speed of the fan motor is adjusted along with the change of the operating parameters of the air conditioner, and the cold air prevention waiting time is greatly reduced under the condition of not increasing hardware; or the realization need not to wait under the condition that the indoor set is equipped with the electric heating area, directly blows hot-blast to this improves the experience that the user used.
The foregoing is considered as illustrative only of the embodiments of the invention. It should be understood that any modifications, equivalents and changes made within the spirit and framework of the inventive concept are intended to be included within the scope of the present invention.
Claims (4)
1. The method for controlling the cold air prevention of the air conditioner is characterized in that when the air conditioner operates under a heating working condition, the cold air prevention mode predicts the air inlet temperature of an inner machine through the temperature of an inner machine pipe and the ambient temperature, calculates the heat generated by the air conditioner at the current inner machine pipe temperature in unit time, and the heat meets the maximum air quantity corresponding to the temperature set by a user, and adjusts the rotating speed of a fan motor according to the maximum air quantity;
when the inner machine is provided with an electric heating belt, the control method comprises the following steps:
s11, calculating the maximum air quantity which can be met by the air outlet temperature set by a user and is generated by the electric heating belt according to the environment temperature, and determining the initial rotating speed of a fan motor according to the maximum air quantity;
s12, detecting the temperature of the inner machine pipe in real time, judging whether the temperature of the inner machine pipe reaches a target temperature or not, and if so, closing the electric heating belt and exiting from a cold air prevention mode; and when the current temperature is not reached, adjusting the rotating speed of the fan motor according to the current inner machine pipe temperature, the ambient temperature and the heat output by the electric heating belt.
2. The method for controlling the cold air prevention of the air conditioner is characterized in that when the air conditioner operates under a heating working condition, the cold air prevention mode predicts the air inlet temperature of an inner machine through the temperature of an inner machine pipe and the ambient temperature, calculates the heat generated by the air conditioner at the current inner machine pipe temperature in unit time, and the heat meets the maximum air quantity corresponding to the temperature set by a user, and adjusts the rotating speed of a fan motor according to the maximum air quantity;
when the inner machine is not provided with the electric heating belt, the control method comprises the following steps:
s21, judging whether the temperature of the inner fan reaches a set temperature threshold value or not, and if not, not starting the inner fan; when the temperature reaches the preset temperature, the fan of the internal machine is started, the heat generated by the current internal machine in unit time is calculated according to the temperature of the pipe of the internal machine and the ambient temperature, the heat reaches the maximum air volume which can be met by the air outlet temperature set by a user, and the initial rotating speed of the motor of the internal machine is determined according to the maximum air volume;
s22, detecting the temperature of the inner machine pipe in real time, judging whether the temperature of the inner machine pipe reaches a target temperature or not, and exiting from a cold air prevention mode when the temperature of the inner machine pipe reaches the target temperature; and when the temperature does not reach the preset temperature, calculating the heat which can be generated in unit time at the current inner machine pipe temperature and the air volume which can be met by the heat according to the current inner machine pipe temperature and the environment temperature, and adjusting the rotating speed of the fan motor according to the air volume.
3. The method of controlling cool wind prevention of an air conditioner according to claim 1 or 2, wherein in the cool wind prevention mode, the rotation speed of the indoor fan motor is increased stepwise with the turn-on time.
4. An air conditioner characterized by using the air conditioner cold wind prevention control method of claim 1, 2 or 3.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910161216.9A CN109855262B (en) | 2019-03-04 | 2019-03-04 | Cold air prevention control method for air conditioner and air conditioner using same |
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| CN201910161216.9A CN109855262B (en) | 2019-03-04 | 2019-03-04 | Cold air prevention control method for air conditioner and air conditioner using same |
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| CN109855262A CN109855262A (en) | 2019-06-07 |
| CN109855262B true CN109855262B (en) | 2019-12-27 |
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| CN112361547B (en) * | 2020-10-22 | 2022-02-01 | 珠海格力电器股份有限公司 | Air conditioner operation control method and device and air conditioner |
| CN114440398B (en) * | 2022-02-11 | 2023-03-24 | 珠海格力电器股份有限公司 | Control method of air conditioner and air conditioner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699867A (en) * | 2005-03-28 | 2005-11-23 | 广东科龙电器股份有限公司 | Air conditioner with constant air outlet temperature and control method therefor |
| CN101354172A (en) * | 2007-07-24 | 2009-01-28 | 株式会社山武 | Air conditioner control system and method |
| CN101592389A (en) * | 2009-07-03 | 2009-12-02 | 广东美的电器股份有限公司 | A kind of control method that improves outlet air temperature comfort of air conditioner |
| CN107355952A (en) * | 2017-07-28 | 2017-11-17 | 海信（山东）空调有限公司 | The anti-cold air control method, apparatus and air-conditioning of a kind of air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6395413B2 (en) * | 2014-03-26 | 2018-09-26 | 三菱電機株式会社 | Ventilation / air conditioning system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1699867A (en) * | 2005-03-28 | 2005-11-23 | 广东科龙电器股份有限公司 | Air conditioner with constant air outlet temperature and control method therefor |
| CN101354172A (en) * | 2007-07-24 | 2009-01-28 | 株式会社山武 | Air conditioner control system and method |
| CN101592389A (en) * | 2009-07-03 | 2009-12-02 | 广东美的电器股份有限公司 | A kind of control method that improves outlet air temperature comfort of air conditioner |
| CN107355952A (en) * | 2017-07-28 | 2017-11-17 | 海信（山东）空调有限公司 | The anti-cold air control method, apparatus and air-conditioning of a kind of air conditioner |
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