CN104406270B - Indoor temperature self-adaptive control method for air conditioner and air conditioner - Google Patents

Indoor temperature self-adaptive control method for air conditioner and air conditioner Download PDF

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Publication number
CN104406270B
CN104406270B CN201410637592.8A CN201410637592A CN104406270B CN 104406270 B CN104406270 B CN 104406270B CN 201410637592 A CN201410637592 A CN 201410637592A CN 104406270 B CN104406270 B CN 104406270B
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temperature
indoor
air conditioner
equal
threshold
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CN104406270A (en
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席战利
张桃
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GD Midea Air Conditioning Equipment Co Ltd
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Guangdong Midea Refrigeration Equipment Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses an indoor temperature self-adaptive control method for an air conditioner. The method comprises the following steps: acquiring an outdoor ambient temperature T4 and an indoor ambient temperature T1; when the outdoor ambient temperature T4 is smaller than a first temperature threshold Ta and an indoor temperature Ts set by a user is lower than the indoor ambient temperature T1, controlling an air conditioner to run at a stepped cooling mode till an indoor target temperature is equal to the higher one of the indoor temperature Ts set by the user and the outdoor ambient temperature T4-X, wherein X is a preset indoor-outdoor temperature difference; when the outdoor ambient temperature T4 is smaller than the first temperature threshold Ta and the indoor temperature Ts set by the user is higher than or equal to the indoor ambient temperature T1, controlling the air conditioner to run at an air supply mode. The invention further discloses the air conditioner. By adopting the indoor temperature self-adaptive control method, physical in-adaptation of a user entering into and exiting from a room and the air-conditioning disease caused by rapid cooling in the room are prevented.

Description

Self-adaptive control method for temperature in air conditioner and air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to a self-adaptive control method for temperature in an air conditioner and the air conditioner.
Background
Air conditioners have become a necessity for people's homes, and particularly, when the outdoor temperature is high or low, the indoor temperature can be kept at a comfortable temperature through the air conditioners. However, people often set the air conditioner to a low temperature due to hot weather, so that the temperature difference between the inside and the outside of the room is large, and people usually have difficulty in rapidly adapting to the environment when getting in and out of the air-conditioned room. Sudden cold or heat often causes physical discomfort. In addition, air conditioner manufacturers always pursue the temperature regulation speed of rapid cooling and rapid heating at present, and the excessively rapid cooling speed can cause the skin temperature of a body to be suddenly cooled and suddenly heated, and cold air is gathered in pores to reduce the immunity of the body, so that air conditioner diseases are caused, particularly for the old, women, patients, children and the like.
Disclosure of Invention
The invention mainly aims to provide a self-adaptive control method for the temperature in an air conditioner and the air conditioner, aiming at preventing the body discomfort caused by the entrance and exit of a user and the air conditioning disease caused by rapid temperature reduction in a room.
In order to achieve the aim, the invention provides a self-adaptive control method for the temperature in an air conditioner, which comprises the following steps:
step S10, obtaining an outdoor environment temperature T4 and an indoor environment temperature T1;
step S11, when the outdoor environment temperature T4 is less than the first temperature threshold Ta and the indoor temperature Ts set by the user is less than the indoor environment temperature T1, controlling the air conditioner to operate a stepped cooling mode until the indoor target temperature is equal to the higher one of the indoor temperature Ts set by the user and the outdoor environment temperature T4-X, wherein X is a preset indoor and outdoor temperature difference;
and step S12, when the outdoor environment temperature T4 is less than the first temperature threshold Ta and the indoor temperature Ts set by the user is greater than or equal to the indoor environment temperature T1, controlling the air conditioner to operate the air supply mode.
Preferably, the method for adaptively controlling the temperature in the air conditioner further comprises:
step S21, when the outdoor environment temperature T4 is greater than or equal to the first temperature threshold Ta and the indoor environment temperature T1 is greater than or equal to the second temperature threshold Tb, controlling the air conditioner to operate the stepped cooling mode until the indoor target temperature is equal to the higher of the indoor temperature Ts and the second temperature threshold Tb set by the user; wherein the second temperature threshold Tb is less than the first temperature threshold Ta;
and step S22, when the outdoor environment temperature T4 is greater than or equal to the first temperature threshold Ta and the indoor environment temperature T1 is less than the second temperature threshold Tb, controlling the air conditioner to operate the air supply mode.
Preferably, the step S21 includes:
judging whether the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc;
when the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc, controlling the air conditioner to perform stepped cooling from the third temperature threshold Tc until the indoor target temperature is equal to the higher one of the indoor temperature Ts and the second temperature threshold Tb set by the user;
when the indoor ambient temperature T1 is less than the third temperature threshold Tc, the air conditioner is controlled to perform stepwise cool-down from the indoor ambient temperature T1 until the indoor target temperature is equal to the higher of the indoor temperature Ts set by the user and the second temperature threshold Tb.
Preferably, the step S11 includes:
judging whether the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc;
when the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc, controlling the air conditioner to perform stepwise cooling from the third temperature threshold Tc until the indoor target temperature is equal to the higher one of the indoor temperature Ts and the outdoor environment temperature T4-X set by the user;
when the indoor environment temperature T1 is less than the third temperature threshold Tc, the air conditioner is controlled to perform stepwise cooling from the indoor environment temperature T1 until the indoor target temperature is equal to the higher of the indoor temperature Ts and the outdoor environment temperature T4-X set by the user.
Preferably, the step-wise temperature reduction control comprises:
after the operation time t1 is continued from the temperature at which the stepped down temperature is performed, the current indoor target temperature of the air conditioner is controlled to be decreased by Td and then operated for a time t2, and so on until the stepped down temperature is finished.
Further, to achieve the above object, the present invention also provides an air conditioner including a control device, wherein the control device includes:
an outdoor environment temperature obtaining module, configured to obtain an outdoor environment temperature T4;
an indoor environment temperature obtaining module, configured to obtain an indoor environment temperature T1;
the first step cooling control module is used for controlling the air conditioner to operate a step cooling mode when the outdoor environment temperature T4 is less than a first temperature threshold Ta and the indoor temperature Ts set by a user is less than the indoor environment temperature T1 until the indoor target temperature is equal to the higher one of the indoor temperature Ts set by the user and the outdoor environment temperature T4-X, wherein X is a preset indoor and outdoor temperature difference;
and the air supply control module is used for controlling the air conditioner to operate the air supply mode when the outdoor environment temperature T4 is less than the first temperature threshold Ta and the indoor temperature Ts set by the user is greater than or equal to the indoor environment temperature T1.
Preferably, the control device further includes:
the second step cooling control module is used for controlling the air conditioner to operate in a step cooling mode when the outdoor environment temperature T4 is greater than or equal to the first temperature threshold Ta and the indoor environment temperature T1 is greater than or equal to the second temperature threshold Tb until the indoor target temperature is equal to the higher one of the indoor temperature Ts and the second temperature threshold Tb set by the user; wherein the second temperature threshold Tb is less than the first temperature threshold Ta;
the air supply control module is also used for: and when the outdoor ambient temperature T4 is greater than or equal to the first temperature threshold Ta and the indoor ambient temperature T1 is less than the second temperature threshold Tb, controlling the air conditioner to operate the air supply mode.
Preferably, the second step cooling control module is configured to:
judging whether the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc;
when the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc, controlling the air conditioner to perform stepped cooling from the third temperature threshold Tc until the indoor target temperature is equal to the higher one of the indoor temperature Ts and the second temperature threshold Tb set by the user;
when the indoor ambient temperature T1 is less than the third temperature threshold Tc, the air conditioner is controlled to perform stepwise cool-down from the indoor ambient temperature T1 until the indoor target temperature is equal to the higher of the indoor temperature Ts set by the user and the second temperature threshold Tb.
Preferably, the first step cooling control module is configured to:
judging whether the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc;
when the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc, controlling the air conditioner to perform stepwise cooling from the third temperature threshold Tc until the indoor target temperature is equal to the higher one of the indoor temperature Ts and the outdoor environment temperature T4-X set by the user;
when the indoor environment temperature T1 is less than the third temperature threshold Tc, the air conditioner is controlled to perform stepwise cooling from the indoor environment temperature T1 until the indoor target temperature is equal to the higher of the indoor temperature Ts and the outdoor environment temperature T4-X set by the user.
Preferably, the step-wise temperature reduction control comprises: after the operation time t1 is continued from the temperature at which the stepped down temperature is performed, the current indoor target temperature of the air conditioner is controlled to be decreased by Td and then operated for a time t2, and so on until the stepped down temperature is finished.
According to the invention, the outdoor environment temperature T4 and the indoor environment temperature T1 are detected in real time, the air conditioner is controlled to operate in a step type cooling mode when the air conditioner needs to be cooled, and in the cooling control process, the indoor target temperature is controlled to operate in a reasonable temperature difference range of the indoor environment temperature and the outdoor environment temperature, so that the body discomfort caused by the fact that a user enters and exits a room and the air conditioner disease caused by rapid cooling in the room are prevented.
Drawings
Fig. 1 is a schematic flow chart illustrating a method for adaptively controlling temperature in an air conditioner according to a first embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a second embodiment of a method for adaptive control of indoor temperature of an air conditioner according to the present invention;
FIG. 3 is a schematic view illustrating a detailed flow of a stepwise cooling mode for controlling an air conditioner to operate in a self-adaptive control method of temperature in an air conditioner according to the present invention;
FIG. 4 is a diagram illustrating an example of temperature variation when a temperature in an air conditioner is reduced in a stepwise manner according to the adaptive control method for temperature in an air conditioner of the present invention;
FIG. 5 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;
FIG. 6 is a functional block diagram of a control device of an air conditioner according to a first embodiment of the present invention;
fig. 7 is a functional block diagram of a control device of an air conditioner according to a second embodiment of the present invention.
In order to make the technical solution of the present invention clearer and clearer, the following detailed description is made with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The core idea of the invention is as follows: the operation of the air conditioner is controlled in a step-type cooling mode by detecting the outdoor environment temperature T4 and the indoor environment temperature T1 in real time and according to the characteristic that human skin fully adapts to the environment temperature, and when the indoor target temperature Ts set by a user is within a reasonable temperature difference range of the indoor and outdoor environment temperatures, the air conditioner is controlled to be cooled to the indoor target temperature Ts set by the user in a step-type cooling mode; and when the indoor target temperature set by the user is lower than the reasonable temperature difference range of the indoor and outdoor environment temperatures, the air conditioner is controlled to be constantly operated after the temperature is reduced to the maximum allowable temperature difference. Therefore, the invention not only controls the air conditioner to operate in a step-type cooling way, but also controls the indoor target temperature to operate in a reasonable temperature difference range of the indoor and outdoor environmental temperatures, thereby preventing the body discomfort caused by the user entering and exiting the room and the air conditioning diseases caused by the rapid cooling in the room.
As shown in fig. 1, there is shown a first embodiment of a method for adaptively controlling a temperature in an air conditioner according to the present invention. The self-adaptive control method for the temperature in the air conditioner in the embodiment comprises the following steps:
step S10, obtaining an outdoor environment temperature T4 and an indoor environment temperature T1;
the outdoor ambient temperature T4 and the indoor ambient temperature T1 are detected by a temperature sensor provided in the outdoor unit of the air conditioner and a temperature sensor provided in the indoor unit. In addition, since the outdoor ambient temperature T4 and the indoor ambient temperature T1 are inevitably detected during the operation control of the air conditioner, the outdoor ambient temperature T4 and the indoor ambient temperature T1 may be directly obtained from the control parameters of the air conditioner.
Step S11, when the outdoor environment temperature T4 is less than the first temperature threshold Ta and the indoor temperature Ts set by the user is less than the indoor environment temperature T1, controlling the air conditioner to operate a stepped cooling mode until the indoor target temperature is equal to the higher one of the indoor temperature Ts set by the user and the outdoor environment temperature T4-X, wherein X is a preset indoor and outdoor environment temperature difference;
in this embodiment, the first temperature threshold Ta is to be preset, and the reasonable temperature difference X of the indoor ambient temperature is preset. The value range of the first temperature threshold Ta is 35-42 ℃, and preferably 40 ℃. The value range of the reasonable temperature difference X of the indoor environment temperature is 4-12 ℃, and the optimal value range is 10 ℃. When the user starts the air conditioner, the target temperature Ts to be reached in the room is set, and if the target temperature Ts is not set by the user, the target temperature Ts is a default set temperature or a set temperature during the last shutdown. When the set temperature Ts is less than the current indoor ambient temperature T1, the cooling mode is activated and the stepped cooling is performed. If the temperature difference between the indoor environment and the outdoor environment is within a reasonable temperature difference range, the final indoor target temperature is greater than or equal to T4-X after the temperature is reduced in a stepped mode. Therefore, when the set temperature Ts < (T4-X) of the user, the temperature is decreased in a step manner according to (T4-X), namely, the air conditioner is controlled to decrease in a step manner until the final target indoor temperature is equal to T4-X; when the set temperature Ts > (T4-X) of the user, performing stepped cooling according to the set temperature Ts, namely controlling the air conditioner to perform stepped cooling until the final indoor target temperature is equal to the set temperature Ts; when the set temperature Ts of the user is equal to (T4-X), the temperature is reduced in a stepwise manner according to the set temperature Ts or (T4-X).
And step S12, when the outdoor environment temperature T4 is less than the first temperature threshold Ta and the indoor temperature Ts set by the user is greater than or equal to the indoor environment temperature T1, controlling the air conditioner to operate the automatic air supply mode.
When the outdoor environment temperature T4 is less than the first temperature threshold Ta and the indoor temperature Ts set by the user is greater than or equal to the indoor environment temperature T1, it indicates that the current indoor temperature is lower than the set temperature Ts, and the air conditioner does not need to be controlled to cool, i.e., the air conditioner is controlled to operate in the automatic blowing mode.
According to the invention, the outdoor environment temperature T4 and the indoor environment temperature T1 are detected in real time, the air conditioner is controlled to operate in a step type cooling mode when the air conditioner needs to be cooled, and in the cooling control process, the indoor target temperature is controlled to operate in a reasonable temperature difference range of the indoor environment temperature and the outdoor environment temperature, so that the body discomfort caused by the fact that a user enters and exits a room and the air conditioner disease caused by rapid cooling in the room are prevented.
Further, as shown in fig. 2, a second embodiment of the method for adaptively controlling the temperature of an air conditioner according to the present invention is shown. In the adaptive control method of the temperature inside an air conditioner according to this embodiment, after the step S10, the method may further include:
step S21, when the outdoor environment temperature T4 is greater than or equal to the first temperature threshold Ta and the indoor environment temperature T1 is greater than or equal to the second temperature threshold Tb, controlling the air conditioner to operate the stepped cooling mode until the indoor target temperature is equal to the higher of the indoor temperature Ts and the second temperature threshold Tb set by the user; wherein the second temperature threshold Tb is less than the first temperature threshold Ta;
in this embodiment, still will predetermine second temperature threshold Tb, this second temperature threshold Tb is that the air conditioner was set for when leaving the factory for control air conditioner can't move to very low temperature, both practiced thrift the energy, also prevented the harm that the air conditioner will cause the air conditioner when the air conditioner long-term operation low temperature. The second temperature threshold Tb is set at 25-29 deg.c, preferably 27 deg.c. When the outdoor environment temperature T4 is greater than or equal to the first temperature threshold Ta and the indoor environment temperature T1 is greater than or equal to the second temperature threshold Tb, the air conditioner needs to be cooled, and then the air conditioner is controlled to be cooled in a stepped mode. If the air conditioner cannot operate to a very low temperature, in the step-type cooling process, after the step-type cooling is performed, the final indoor target temperature should be greater than or equal to the second temperature threshold Tb. Therefore, when the set temperature Ts of the user is less than the second temperature threshold Tb, the air conditioner is controlled to perform stepped cooling according to the second temperature threshold Tb until the final indoor target temperature is equal to the second temperature threshold Tb; when the set temperature Ts of the user is larger than a second temperature threshold Tb, performing stepped cooling according to the set temperature Ts, namely controlling the air conditioner to perform stepped cooling until the final indoor target temperature is equal to the set temperature Ts; and when the set temperature Ts of the user is equal to the second temperature threshold Tb, performing stepped temperature reduction according to the set temperature Ts or the second temperature threshold Tb.
And step S22, controlling the air conditioner to run an automatic air supply mode when the outdoor environment temperature T4 is greater than or equal to the first temperature threshold Ta and the indoor environment temperature T1 is less than the second temperature threshold Tb.
When the outdoor ambient temperature T4 is less than the first temperature threshold Ta and the indoor ambient temperature T1 is less than the second temperature threshold Tb, it indicates that the current indoor temperature is lower than the second temperature threshold Tb, and the air conditioner does not need to be controlled to cool, that is, the air conditioner is controlled to operate in the automatic air supply mode.
According to the embodiment of the invention, the second temperature threshold Tb is set, so that the air conditioner can be controlled not to run to a very low temperature in the stepped cooling control, energy is saved, and the air conditioner is prevented from being damaged when the air conditioner runs for a long time at a low temperature.
Further, as shown in fig. 3, a detailed flow of controlling the air conditioner to operate in the stepped cooling mode in the adaptive control method of the temperature in the air conditioner of the present invention is shown. In the first and second embodiments, the stepped temperature reduction control process may include the following steps:
step S31, judging whether the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc;
step S32, when the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc, controlling the air conditioner to perform stepped cooling from the third temperature threshold Tc;
step S33, when the indoor environment temperature T1 is smaller than the third temperature threshold Tc, controlling the air conditioner to start to perform stepped cooling from the indoor environment temperature T1;
in the embodiment of the present invention, the third temperature threshold Tc is preset. The third temperature threshold Tc ranges from 30 ℃ to 32 ℃, and is preferably 30 ℃. The indoor ambient temperature T1 is compared with the third temperature threshold Tc to determine the start temperature of the stepped temperature decrease. For example, when the indoor ambient temperature T1 is greater than or equal to the third temperature threshold Tc, the air conditioner is controlled to perform stepwise cooling from the third temperature threshold Tc; and when the indoor environment temperature T1 is less than the third temperature threshold Tc, controlling the air conditioner to perform stepped cooling from the indoor environment temperature T1. Based on the first embodiment, after the stepped temperature reduction, the final indoor target temperature is equal to the higher of the indoor temperature Ts and the second temperature threshold Tb set by the user; according to the second embodiment, after the temperature is decreased in a stepwise manner, the final target indoor temperature is equal to the higher of the indoor temperature Ts and the outdoor ambient temperature T4-X set by the user.
According to the embodiment of the invention, the third temperature threshold Tc is set, so that the initial temperature in the step-type cooling process can be controlled, and when the indoor environment temperature T1 is greater than or equal to the third temperature threshold Tc, the step-type cooling is directly started by the third temperature threshold Tc, so that the cooling time is greatly reduced compared with the step-type cooling started by the indoor environment temperature T1.
Further, the specific control process of the stepped temperature reduction is as follows: after the operation time t1 is continued from the temperature at which the stepped temperature reduction is performed, the current indoor target temperature of the air conditioner is controlled to be reduced by the fourth temperature threshold Td and the operation time t2, and so on until the stepped temperature reduction is finished. The time t1 and the time t2 range from 3 minutes to 20 minutes, and the duration of each time can be equal or gradually prolonged. As shown in fig. 4, when the stepped temperature reduction is started, the current temperature is greater than 30 ℃, the current set temperature of the air conditioner is set to 30 ℃, and after the air conditioner is controlled to continuously operate for T1 time at the current set temperature, the current set temperature of the air conditioner is reduced to 28 ℃, and the air conditioner is controlled to continuously operate for T2 time at the current set temperature, and so on until the indoor temperature is equal to T4-X, and then the air conditioner is controlled to continuously operate. The invention achieves the aim of slow cooling by continuously changing the indoor target temperature of the air conditioner and the duration time when the target temperature is reached, thereby avoiding the problem that the quick cooling is easy to cause air-conditioning diseases such as cold and the like, and particularly aiming at old people, children, women with weak bodies and users sensitive to the change of the environmental temperature, the control mode of the invention can effectively prevent the occurrence of the air-conditioning diseases. Meanwhile, due to the stepped cooling, the compressor always runs at a low frequency, and the wind speed also always runs at a low speed, so that the health and the comfort are guaranteed, and meanwhile, the electricity and energy saving running is realized.
The adaptive control process of the indoor temperature of the air conditioner according to the present invention will be described below by using a specific example. In this example, the first temperature threshold Ta is 40 ℃, the second temperature threshold Tb is 27 ℃, the third temperature threshold Tc is 30 ℃, and the indoor and outdoor ambient temperature difference X is 10 ℃. In the step cooling control, t1 is 15 minutes, t2 is 18 minutes, t3 is 21 minutes, and the like; the fourth temperature threshold Td is 2 ℃. The specific control process is as follows:
s101, starting a refrigeration health function by a user, and setting the room temperature Ts to be 26 ℃;
s102, detecting the outdoor environment temperature T4 in real time by the air conditioner, wherein the current outdoor environment temperature T4 is 42 ℃;
s103, comparing whether T4 is greater than or equal to Ta; when T4 is more than or equal to Ta, executing S104, otherwise executing S109;
s104, detecting the indoor environment temperature T1 when the computer is started up and judging whether T1 is greater than a second temperature threshold Tb or not because T4 is equal to 42 ℃ or more and Ta is equal to 40 ℃; when T1 is more than or equal to Tb, executing S105, and when T1< Tb, executing S108;
s105, when T1 is larger than or equal to Tb 27 ℃, judging whether T1 is larger than a third temperature threshold Tc 30 ℃; when T1 is larger than or equal to Tc, executing S106, otherwise executing S107;
s106, when T1 is equal to 32 ℃, the air conditioner is controlled to perform stepped cooling from a third temperature threshold Tc of 30 ℃ to Tb of 27 ℃ because T1 is equal to or more than Tc (here, the temperature is selected to be higher than Ts of 26 ℃ and Tb of 27 ℃);
s107, when T1 is 29 ℃, controlling the air conditioner to perform a step cooling from the current indoor environment temperature T1 is 29 ℃ to Tb 27 ℃ (where Ts is 26 ℃ and Tb is 27 ℃ higher), since T1< Tc;
s108, when the temperature T1 is 25 ℃, the air conditioner is controlled to run an automatic air supply mode because T1< Tb is 27 ℃;
the step-down cooling in step S105 is to start with the third temperature threshold Tc being 30 ℃ and continue to operate for 15 minutes at t1, then decrease the set temperature to 30-Tc (Tc being 2 ℃) to 28 ℃ and then operate for 18 minutes at t2, and so on until Tb being 27 ℃ (where Ts being 26 ℃ and Tb being 27 ℃ are selected to be higher);
the step-down in step S106 is to start from the current indoor ambient temperature T1-29 ℃ and continue to operate for 15 minutes at T1, then decrease the set temperature to T1-Tc-29-2-27 ℃ and then operate for 18 minutes at T2, and so on until Tb-27 ℃ (where Ts-26 ℃ and Tb-27 ℃ are selected to be higher).
S109, detecting the indoor environment temperature T1 when the computer is started up and judging whether Ts is greater than T1 or not, wherein T4 is 35 ℃ < Ta is 40 ℃; when Ts < T1, executing S110, otherwise executing S113;
s110, when T1 is equal to 32 ℃, since Ts is equal to 20 ℃ < T1 is equal to 32 ℃, determining whether T1 is greater than a third temperature threshold Tc is equal to 30 ℃, when T1 is equal to or greater than Tc, executing S111, otherwise executing S112;
s111, when T1 is equal to 32 ℃ ≧ Tc 30 ℃, controlling the air conditioner to perform a stepped cooling from a third temperature threshold Tc equal to 30 ℃ to T4-X equal to 35-10 equal to 25 ℃ (here, Ts equal to 20 and T4-X equal to 35-10 equal to 25 ℃ are selected to be higher);
s112, when T1 is 28 ℃, controlling the air conditioner to perform a stepped cooling from the current indoor ambient temperature T1 is 28 ℃ to T4-X is 35-10 (25 ℃) (where Ts is 20 and T4-X is 35-10 (25 ℃) is higher) because T1 is 28 ℃ < Tc is 30 ℃;
s113, when the temperature T1 is 18 ℃, the temperature Ts is 20 ℃ or more and the temperature T1 is 18 ℃, so that the air conditioner is controlled to operate in an automatic air supply mode;
the step-down cooling in step S111 is to start from the third temperature threshold Tc being 30 ℃ and continue to operate for 15 minutes at T1, then decrease the set temperature to 30-Tc being 30-2 being 28 ℃ and then operate for 18 minutes at T2, and so on until it is operated to Ts or T4-X (here, the higher Ts and T4-X are selected);
the step-down in step S112 is to continue to operate for a time period T1-15 minutes from the current indoor ambient temperature T1, then to decrease the set temperature to T1-Tc-28-2-26 ℃ and then to operate for a time period T2-18 minutes, and so on until it is Ts or T4-X (here, the higher of Ts and T4-X is selected).
Correspondingly, as shown in fig. 4, an embodiment of an air conditioner for implementing adaptive control of indoor temperature according to the present invention is shown. The air conditioner comprises a compressor assembly 1, a four-way valve 2, an indoor heat exchanger 3, an outdoor heat exchanger 4 and a throttling component 5, wherein the compressor assembly 1 can comprise a compressor 1a and a liquid storage tank 1b, and the four-way valve 2 comprises four ports (a port 2a, a port 2b, a port 2c and a port 2 d). The compressor assembly, the four-way valve 2, the indoor heat exchanger 3, the outdoor heat exchanger 4 and the throttling component 5 are connected through pipelines to form a refrigerating/heating circulation loop. The indoor heat exchanger 3 is provided with a temperature sensor 31 for acquiring an indoor ambient temperature T1. The outdoor heat exchanger 4 is provided with a temperature sensor 41 for acquiring an outdoor ambient temperature T4. In addition, the air conditioner also comprises a control device 6, and the control device 6 is used for acquiring the indoor environment temperature T1, the outdoor environment temperature T4 and the temperature Ts set by a user, and then outputting control parameters according to the control method so as to control the air conditioner and realize the self-adaptive control of the indoor temperature.
As shown in fig. 5, there is shown a first embodiment of the control apparatus of the air conditioner of the present invention. The control device 6 may include:
an outdoor ambient temperature obtaining module 61, configured to obtain an outdoor ambient temperature T4;
an indoor ambient temperature obtaining module 62, configured to obtain an indoor ambient temperature T1;
a first step cooling control module 63, configured to control the air conditioner to operate a step cooling mode when the outdoor ambient temperature T4 is less than the first temperature threshold Ta and the indoor temperature Ts set by the user is less than the indoor ambient temperature T1 until the indoor target temperature is equal to the higher of the indoor temperature Ts set by the user and the outdoor ambient temperature T4-X, where X is a preset indoor-outdoor temperature difference;
and the air supply control module 64 is used for controlling the air conditioner to operate in the automatic air supply mode when the outdoor environment temperature T4 is less than the first temperature threshold Ta and the indoor temperature Ts set by the user is greater than or equal to the indoor environment temperature T1.
The outdoor ambient temperature T4 and the indoor ambient temperature T1 can be detected by the temperature sensor 41 provided in the outdoor unit of the air conditioner and the temperature sensor 31 provided in the indoor unit. In addition, since the outdoor ambient temperature T4 and the indoor ambient temperature T1 are inevitably detected during the operation control of the air conditioner, the outdoor ambient temperature T4 and the indoor ambient temperature T1 may be directly obtained from the control parameters of the air conditioner.
In this embodiment, the first temperature threshold Ta is to be preset, and the reasonable temperature difference X of the indoor ambient temperature is preset. The value range of the first temperature threshold Ta is 35-42 ℃, and preferably 40 ℃. The value range of the reasonable temperature difference X of the indoor environment temperature is 4-12 ℃, and the optimal value range is 10 ℃. When the user starts the air conditioner, the target temperature Ts to be reached in the room is set, and if the target temperature Ts is not set by the user, the target temperature Ts is a default set temperature or a set temperature during the last shutdown. When the set temperature Ts is less than the current indoor ambient temperature T1, the first step cooling control module 63 starts the cooling mode and operates the step cooling. If the temperature difference between the indoor environment and the outdoor environment is within a reasonable temperature difference range, the final indoor target temperature is greater than or equal to T4-X after the temperature is reduced in a stepped mode. Therefore, when the set temperature Ts < (T4-X) of the user, the first step cooling control module 63 performs step cooling according to (T4-X), i.e. controls the air conditioner to perform step cooling until the final target indoor temperature is equal to T4-X; when the set temperature Ts > (T4-X) of the user, the first step cooling control module 63 performs step cooling according to the set temperature Ts, that is, controls the air conditioner to perform step cooling until the final target indoor temperature is equal to the set temperature Ts; when the set temperature Ts of the user is equal to (T4-X), the first step-down control module 63 performs step-down according to the set temperature Ts or (T4-X).
When the outdoor ambient temperature T4 is less than the first temperature threshold Ta and the indoor temperature Ts set by the user is greater than or equal to the indoor ambient temperature T1, it indicates that the current indoor temperature is lower than the set temperature Ts, and the air conditioner does not need to be controlled to cool, i.e., the air supply control module 64 controls the air conditioner to operate in the automatic air supply mode.
According to the invention, the outdoor environment temperature T4 and the indoor environment temperature T1 are detected in real time, the air conditioner is controlled to operate in a step type cooling mode when the air conditioner needs to be cooled, and in the cooling control process, the indoor target temperature is controlled to operate in a reasonable temperature difference range of the indoor environment temperature and the outdoor environment temperature, so that the body discomfort caused by the fact that a user enters and exits a room and the air conditioner disease caused by rapid cooling in the room are prevented.
Further, as shown in fig. 6, there is shown a second embodiment of the control device of the air conditioner of the present invention. Based on the above embodiment, the control device of this embodiment further includes:
the second stepped temperature reduction control module 65 is configured to control the air conditioner to operate the stepped temperature reduction mode until the indoor target temperature is equal to the higher of the indoor temperature Ts set by the user and the second temperature threshold Tb when the outdoor ambient temperature T4 is greater than or equal to the first temperature threshold Ta and the indoor ambient temperature T1 is greater than or equal to the second temperature threshold Tb; wherein the second temperature threshold Tb is less than the first temperature threshold Ta;
the air supply control module 64 is further configured to: and when the outdoor ambient temperature T4 is greater than or equal to the first temperature threshold Ta and the indoor ambient temperature T1 is less than the second temperature threshold Tb, controlling the air conditioner to run the automatic air supply mode.
In this embodiment, still will predetermine second temperature threshold Tb, this second temperature threshold Tb is that the air conditioner was set for when leaving the factory for control air conditioner can't move to very low temperature, both practiced thrift the energy, also prevented the harm that the air conditioner will cause the air conditioner when the air conditioner long-term operation low temperature. The second temperature threshold Tb is set at 25-29 deg.c, preferably 27 deg.c. When the outdoor ambient temperature T4 is greater than or equal to the first temperature threshold Ta and the indoor ambient temperature T1 is greater than or equal to the second temperature threshold Tb, it indicates that the air conditioner needs to be cooled, and the second step cooling control module 65 controls the air conditioner to perform step cooling. If the air conditioner cannot operate to a very low temperature, in the step-type cooling process, after the step-type cooling is performed, the final indoor target temperature should be greater than or equal to the second temperature threshold Tb. Therefore, when the set temperature Ts of the user is less than the second temperature threshold Tb, the second stepped cooling control module 65 performs stepped cooling according to the second temperature threshold Tb, that is, controls the air conditioner to perform stepped cooling until the final indoor target temperature is equal to the second temperature threshold Tb; when the set temperature Ts of the user is greater than the second temperature threshold Tb, the second stepped cooling control module 65 performs stepped cooling according to the set temperature Ts, that is, controls the air conditioner to perform stepped cooling until the final indoor target temperature is equal to the set temperature Ts; when the set temperature Ts of the user is equal to the second temperature threshold Tb, the second stepped temperature reduction control module 65 performs stepped temperature reduction according to the set temperature Ts or the second temperature threshold Tb.
When the outdoor ambient temperature T4 is less than the first temperature threshold Ta and the indoor ambient temperature T1 is less than the second temperature threshold Tb, it indicates that the current indoor temperature is lower than the second temperature threshold Tb, and the air conditioner does not need to be controlled to cool, i.e., the air conditioner is controlled by the air supply control module 64 to operate in the automatic air supply mode.
According to the embodiment of the invention, the second temperature threshold Tb is set, so that the air conditioner can be controlled not to run to a very low temperature in the stepped cooling control, energy is saved, and the air conditioner is prevented from being damaged when the air conditioner runs for a long time at a low temperature.
Further, the second gradient cooling control module 65 is configured to:
judging whether the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc;
when the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc, controlling the air conditioner to perform stepped cooling from the third temperature threshold Tc until the indoor target temperature is equal to the higher one of the indoor temperature Ts and the second temperature threshold Tb set by the user;
when the indoor ambient temperature T1 is less than the third temperature threshold Tc, the air conditioner is controlled to perform stepwise cool-down from the indoor ambient temperature T1 until the indoor target temperature is equal to the higher of the indoor temperature Ts set by the user and the second temperature threshold Tb.
Further, the first step cooling control module 63 is configured to:
judging whether the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc;
when the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc, controlling the air conditioner to perform stepwise cooling from the third temperature threshold Tc until the indoor target temperature is equal to the higher one of the indoor temperature Ts and the outdoor environment temperature T4-X set by the user;
when the indoor environment temperature T1 is less than the third temperature threshold Tc, the air conditioner is controlled to perform stepwise cooling from the indoor environment temperature T1 until the indoor target temperature is equal to the higher of the indoor temperature Ts and the outdoor environment temperature T4-X set by the user.
In the embodiment of the present invention, the third temperature threshold Tc is preset. The indoor ambient temperature T1 is compared with the third temperature threshold Tc to determine the start temperature of the stepped temperature decrease. For example, when the indoor ambient temperature T1 is greater than or equal to the third temperature threshold Tc, the air conditioner is controlled to perform stepwise cooling from the third temperature threshold Tc; and when the indoor environment temperature T1 is less than the third temperature threshold Tc, controlling the air conditioner to perform stepped cooling from the indoor environment temperature T1.
According to the embodiment of the invention, the third temperature threshold Tc is set, so that the initial temperature in the step-type cooling process can be controlled, and when the indoor environment temperature T1 is greater than or equal to the third temperature threshold Tc, the step-type cooling is directly started by the third temperature threshold Tc, so that the cooling time is greatly reduced compared with the step-type cooling started by the indoor environment temperature T1.
Further, the specific control process of the stepped temperature reduction is as follows: after the operation time t1 is continued from the temperature at which the stepped temperature reduction is performed, the current indoor target temperature of the air conditioner is controlled to be reduced by the fourth temperature threshold Td and the operation time t2, and so on until the stepped temperature reduction is finished. The time t1 and the time t2 range from 3 minutes to 20 minutes, and the duration of each time can be equal or gradually prolonged. The invention achieves the aim of slow cooling by continuously changing the indoor target temperature of the air conditioner and the duration time when the target temperature is reached, thereby avoiding the problem that the quick cooling is easy to cause air-conditioning diseases such as cold and the like, and particularly aiming at old people, children, women with weak bodies and users sensitive to the change of the environmental temperature, the control mode of the invention can effectively prevent the occurrence of the air-conditioning diseases. Meanwhile, due to the stepped cooling, the compressor always runs at a low frequency, and the wind speed also always runs at a low speed, so that the health and the comfort are guaranteed, and meanwhile, the electricity and energy saving running is realized.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structures or flow transformations made by the present specification and drawings, or applied directly or indirectly to other related arts, are included in the scope of the present invention.

Claims (8)

1. An adaptive control method for the temperature in an air conditioner is characterized by comprising the following steps:
step S10, obtaining an outdoor environment temperature T4 and an indoor environment temperature T1;
step S11, when the outdoor environment temperature T4 is less than the first temperature threshold Ta and the indoor temperature Ts set by the user is less than the indoor environment temperature T1, controlling the air conditioner to operate a stepped cooling mode until the indoor target temperature is equal to the higher one of the indoor temperature Ts set by the user and the outdoor environment temperature T4-X, wherein X is a preset indoor and outdoor temperature difference;
step S12, when the outdoor environment temperature T4 is less than the first temperature threshold Ta and the indoor temperature Ts set by the user is more than or equal to the indoor environment temperature T1, controlling the air conditioner to operate the air supply mode; wherein,
the control of the stepped temperature reduction comprises:
after the operation time t1 is continued from the temperature at which the stepped down temperature is performed, the current indoor target temperature of the air conditioner is controlled to be decreased by Td and then operated for a time t2, and so on until the stepped down temperature is finished.
2. The adaptive control method of temperature in an air conditioner according to claim 1, further comprising:
step S21, when the outdoor environment temperature T4 is greater than or equal to the first temperature threshold Ta and the indoor environment temperature T1 is greater than or equal to the second temperature threshold Tb, controlling the air conditioner to operate the stepped cooling mode until the indoor target temperature is equal to the higher of the indoor temperature Ts and the second temperature threshold Tb set by the user; wherein the second temperature threshold Tb is less than the first temperature threshold Ta;
and step S22, when the outdoor environment temperature T4 is greater than or equal to the first temperature threshold Ta and the indoor environment temperature T1 is less than the second temperature threshold Tb, controlling the air conditioner to operate the air supply mode.
3. The adaptive control method of temperature in an air conditioner as claimed in claim 2, wherein the step S21 includes:
judging whether the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc;
when the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc, controlling the air conditioner to perform stepped cooling from the third temperature threshold Tc until the indoor target temperature is equal to the higher one of the indoor temperature Ts and the second temperature threshold Tb set by the user;
when the indoor ambient temperature T1 is less than the third temperature threshold Tc, the air conditioner is controlled to perform stepwise cool-down from the indoor ambient temperature T1 until the indoor target temperature is equal to the higher of the indoor temperature Ts set by the user and the second temperature threshold Tb.
4. The adaptive control method of temperature in an air conditioner as claimed in claim 1, wherein the step S11 includes:
judging whether the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc;
when the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc, controlling the air conditioner to perform stepwise cooling from the third temperature threshold Tc until the indoor target temperature is equal to the higher one of the indoor temperature Ts and the outdoor environment temperature T4-X set by the user;
when the indoor environment temperature T1 is less than the third temperature threshold Tc, the air conditioner is controlled to perform stepwise cooling from the indoor environment temperature T1 until the indoor target temperature is equal to the higher of the indoor temperature Ts and the outdoor environment temperature T4-X set by the user.
5. An air conditioner, characterized in that the air conditioner comprises a control device, wherein the control device comprises:
an outdoor environment temperature obtaining module, configured to obtain an outdoor environment temperature T4;
an indoor environment temperature obtaining module, configured to obtain an indoor environment temperature T1;
the first step cooling control module is used for controlling the air conditioner to operate a step cooling mode when the outdoor environment temperature T4 is less than a first temperature threshold Ta and the indoor temperature Ts set by a user is less than the indoor environment temperature T1 until the indoor target temperature is equal to the higher one of the indoor temperature Ts set by the user and the outdoor environment temperature T4-X, wherein X is a preset indoor and outdoor temperature difference;
the air supply control module is used for controlling the air conditioner to operate an air supply mode when the outdoor environment temperature T4 is less than a first temperature threshold Ta and the indoor temperature Ts set by a user is greater than or equal to the indoor environment temperature T1;
the control of the stepped temperature reduction comprises: after the operation time t1 is continued from the temperature at which the stepped down temperature is performed, the current indoor target temperature of the air conditioner is controlled to be decreased by Td and then operated for a time t2, and so on until the stepped down temperature is finished.
6. The air conditioner according to claim 5, wherein the control means further comprises:
the second step cooling control module is used for controlling the air conditioner to operate in a step cooling mode when the outdoor environment temperature T4 is greater than or equal to the first temperature threshold Ta and the indoor environment temperature T1 is greater than or equal to the second temperature threshold Tb until the indoor target temperature is equal to the higher one of the indoor temperature Ts and the second temperature threshold Tb set by the user; wherein the second temperature threshold Tb is less than the first temperature threshold Ta;
the air supply control module is also used for: and when the outdoor ambient temperature T4 is greater than or equal to the first temperature threshold Ta and the indoor ambient temperature T1 is less than the second temperature threshold Tb, controlling the air conditioner to operate the air supply mode.
7. The air conditioner of claim 6, wherein the second step cooling control module is configured to:
judging whether the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc;
when the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc, controlling the air conditioner to perform stepped cooling from the third temperature threshold Tc until the indoor target temperature is equal to the higher one of the indoor temperature Ts and the second temperature threshold Tb set by the user;
when the indoor ambient temperature T1 is less than the third temperature threshold Tc, the air conditioner is controlled to perform stepwise cool-down from the indoor ambient temperature T1 until the indoor target temperature is equal to the higher of the indoor temperature Ts set by the user and the second temperature threshold Tb.
8. The air conditioner of claim 5, wherein the first step cooling control module is configured to:
judging whether the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc;
when the indoor environment temperature T1 is greater than or equal to a third temperature threshold Tc, controlling the air conditioner to perform stepwise cooling from the third temperature threshold Tc until the indoor target temperature is equal to the higher one of the indoor temperature Ts and the outdoor environment temperature T4-X set by the user;
when the indoor environment temperature T1 is less than the third temperature threshold Tc, the air conditioner is controlled to perform stepwise cooling from the indoor environment temperature T1 until the indoor target temperature is equal to the higher of the indoor temperature Ts and the outdoor environment temperature T4-X set by the user.
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