CN113531860B - Noise reduction control method of air conditioner and air conditioner - Google Patents
Noise reduction control method of air conditioner and air conditioner Download PDFInfo
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- CN113531860B CN113531860B CN202110802045.0A CN202110802045A CN113531860B CN 113531860 B CN113531860 B CN 113531860B CN 202110802045 A CN202110802045 A CN 202110802045A CN 113531860 B CN113531860 B CN 113531860B
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- noise reduction
- air conditioner
- temperature
- fan
- indoor environment
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
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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 belongs to the field of air conditioners, and particularly relates to a noise reduction control method of an air conditioner and the air conditioner, wherein the air conditioner comprises a noise reduction mode which comprises the following steps: judging whether the indoor environment temperature meets the set temperature condition of the noise reduction mode or not; if the set temperature condition is satisfied, the operating frequency of the compressor and the rotational speed of the fan are controlled based on the change of the indoor ambient temperature to reduce the outdoor side noise. The noise reduction control method of the invention can reduce the outdoor side noise and ensure the comfort of the indoor environment.
Description
Technical Field
The invention belongs to the field of air conditioners, and particularly relates to a noise reduction control method of an air conditioner and the air conditioner.
Background
Because of factors such as building space restriction, the outer machine of air conditioner of many users all installs near the outer wall that is close to bedroom window side at present, and the user probably opens the window ventilation when using the air conditioner or itself leads to the room to pass into the bedroom because window sound insulation effect is poor thereby reduces user's travelling comfort. The existing air conditioner noise reduction usually ignores the comfort of the indoor environment, and the user experience is not good.
The present invention has been made in view of this situation.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a noise reduction control method and an air conditioner which can reduce the outdoor side noise and ensure the indoor environment comfort.
In order to solve the above technical problem, the present invention provides that the air conditioner includes a noise reduction mode, and the noise reduction mode includes:
judging whether the indoor environment temperature meets the set temperature condition of the noise reduction mode or not;
if the set temperature condition is satisfied, the operating frequency of the compressor and the rotation speed of the fan are controlled based on the change of the indoor environment temperature to reduce the outdoor side noise.
Further optionally, the determining whether the indoor environment temperature meets the set temperature condition of the noise reduction mode includes:
obtaining indoor ambient temperature T n ；
Determine the indoor ambient temperature T n And a set temperature T s Whether the difference of (a) satisfies: i T n -T s |≤T；
If yes, the indoor environment temperature is considered to reach the set temperature condition.
Further optionally, the controlling the operating frequency of the compressor and the rotation speed of the fan based on the change of the indoor ambient temperature includes:
after the indoor temperature reaches the set temperature condition, acquiring the indoor environment temperature T at intervals of a first preset interval n And calculating a temperature variation value T j ，T j ＝|T n -T n-1 |；
When T is satisfied j And when the temperature change value is larger than or equal to the first temperature change value, reducing the running frequency of the compressor and reducing the rotating speed of the fan.
In a further alternative,
comparing the temperature variation value T every second preset interval time j The magnitude of the first temperature change value as long as T is satisfied j And the operating frequency of the compressor is controlled to be reduced to a set frequency value from the current operating frequency, the rotating speed of the fan is reduced to a next rotating speed gear from the current rotating speed gear, and the first preset interval time is less than or equal to the second preset interval time.
Further optionally, when: the second temperature variation value is less than or equal to T j When the temperature is less than the first temperature change value, the running frequency and the rotating speed of the fan of the existing compressor are maintained until the indoor environment temperature T n Reaches a set temperature T s ；
When the indoor ambient temperature T n Reaches a set temperature T s At this time, the compressor and the fan are controlled to operate at the minimum power.
Further optionally, the reducing the rotation speed of the fan is to reduce the rotation speeds of the indoor fan and the outdoor fan at the same time.
Further optionally, in the process of executing the noise reduction mode, when a control instruction of the air conditioner by a user is received, the air conditioner exits the noise reduction mode.
Further optionally, the noise reduction mode is executed when the air conditioner receives a noise reduction mode instruction.
Further optionally, after the air conditioner receives the noise reduction mode instruction, an operation instruction of the air conditioner by a user is not received within a set time, and the noise reduction mode is executed.
The invention also provides an air conditioner which adopts any one of the noise reduction control methods.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
when the noise reduction mode is executed, the indoor environment temperature is reduced to a certain degree, the running frequency of the compressor and the running gears of the internal and external fans are reduced by judging the indoor temperature change, and the comfort of a user is improved while the effect of reducing the outdoor side noise is achieved by the mode.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention to the proper form disclosed herein. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1: is a control logic diagram of an embodiment of the present invention.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment provides a noise reduction control method for an air conditioner, the air conditioner comprises a noise reduction mode, and an indoor unit of the air conditioner of the embodiment is further provided with a function of monitoring indoor environment temperature T in real time n The temperature sensor of (2); the noise reduction mode includes: judging whether the indoor environment temperature meets the set temperature condition of the noise reduction mode or not; if the set temperature condition is satisfied, the operating frequency of the compressor and the rotation speed of the fan are controlled based on the change of the indoor environment temperature to reduce the outdoor side noise.
The noise reduction control method of the embodiment firstly ensures the cooling or heating effect by judging whether the indoor environment temperature meets the set temperature condition of the noise reduction mode, and then reduces the compressor frequency and the fan rotating speed by judging the indoor temperature change (namely, the cooling rate or the heating rate), thereby ensuring the comfort level of the indoor environment while reducing the operation noise of the outdoor unit.
Further optionally, the determining whether the indoor environment temperature meets the set temperature condition of the noise reduction mode includes:
obtaining indoor ambient temperature T n ；
Judging indoor environment temperature T n And a set temperature T s Whether the difference of (a) satisfies: i T n -T s |≤T；
If yes, the indoor environment temperature is considered to reach the set temperature condition.
Specifically, the indoor ambient temperature T is acquired n The temperature sensor on the indoor unit side monitors the indoor environment temperature T in real time when the air conditioner operates n When the indoor ambient temperature T n And a set temperature T s The difference of (a) satisfies: i T n -T s And when the absolute value is less than or equal to T, the indoor environment temperature reaches the set temperature condition. T is required to be satisfied in the heating mode s -T n Less than or equal to T, and the requirement of T under the refrigeration mode n -T s T is less than or equal to T. The value of the set temperature T can be set according to the requirements of users, and can also be directly written into a program and can not be changed. The magnitude of the set temperature T may optionally be 2-3 deg.c.
Further optionally, the controlling the operating frequency of the compressor and the rotation speed of the fan based on the change of the indoor ambient temperature includes: acquiring indoor environment temperature T at intervals of a first preset interval n And calculating a temperature variation value T j ，T j ＝|T n -T n-1 L, |; when T is satisfied j And when the temperature change value is larger than or equal to the first temperature change value, reducing the running frequency of the compressor and reducing the rotating speed of the fan.
Specifically, when | T is satisfied n -T s And when | ≦ T, the system starts to calculate the indoor temperature change value. The method for calculating the temperature variation value comprises continuously collecting indoor environment temperature data, and calculating the temperature drop T once every first preset interval time, for example every 1min j ＝|T n -T n-1 I, the temperature variation value is obtained. Wherein n is not less than 2,T n For the nth acquired indoor ambient temperature, T n-1 The last acquired indoor ambient temperature. When T is satisfied j When the temperature change value is larger than or equal to the first temperature change value, the operation frequency of the compressor and the rotating speed of the fan at the moment are enough to realize the larger temperature reduction rate or temperature rise rate of the indoor environment temperature, and the temperature reduction effect is not greatly influenced by the operation frequency of the compressor and the rotating speed of the fan at the moment. The magnitude of the first temperature change value may optionally be 0.5-0.8 deg.c. When T is not satisfied j At a temperature not less than the first temperature variation value, i.e. T j < firstWhen the temperature changes, it indicates that the current compressor operating frequency and fan speed make the indoor environment heating rate or cooling rate less, and at this moment, the operating frequency of the compressor and the speed of the fan cannot be reduced, otherwise, the cooling or heating effect can be affected, and the compressor operating frequency and the fan speed can be maintained.
Further optionally, the temperature variation value T is compared at intervals of a second preset interval j And the magnitude of the first temperature change value as long as T is satisfied j And the operating frequency of the compressor is controlled to be decreased by a set frequency value from the current operating frequency, the rotating speed of the fan is decreased from the current rotating speed gear to the next rotating speed gear, and the first preset interval time is less than or equal to the second preset interval time.
Specifically, when T is satisfied j When the temperature change value is more than or equal to the first temperature change value, the running frequency of the compressor and the rotating speed of the fan are reduced, after the second preset interval time, the cooling rate or the heating rate of the indoor environment tends to be stable, and then the indoor temperature change value T is continuously monitored j When T is j When the temperature is still larger than or equal to the first temperature change value, the running frequency of the compressor and the wind speed of the fan are continuously reduced, and the frequency of the compressor is reduced by a set frequency value at the current frequency of the compressor every time, so that the stability of compressor frequency reduction and fan speed reduction can be ensured, and the temperature of system running is ensured. For example when T is satisfied j When the temperature change value is more than or equal to the first temperature change value, the compressor is reduced by 10Hz from the current frequency, the rotating speed of the fan is reduced to the next gear from the current operating rotating speed (such as the operation from the super-strong gear to the high gear), and when the operating frequency of the compressor is reduced, T is j And if the temperature is larger than or equal to the first temperature change value, the compressor is continuously reduced by 10Hz from the current frequency, and the rotating speed of the inner fan is reduced to the next gear from the current operating rotating speed (such as the operation from the high gear to the medium gear). In the embodiment, the rotating speed of the fan is reduced by simultaneously reducing the rotating speeds of the indoor fan and the outdoor fan.
Further optionally, when the second temperature change value ≦ T is satisfied j When the temperature is less than the first temperature variation value, the temperature reduction rate or the temperature rise rate of the indoor environment temperature is reduced, and at the moment, if the pressure is continuously reducedThe compressor frequency and the fan rotating speed can influence the cooling or heating effect of the indoor temperature, so that the running frequency and the fan rotating speed of the existing compressor are maintained until the indoor environment temperature T n Reaches a set temperature T s (ii) a When the indoor ambient temperature T n Reaches a set temperature T s And when the temperature of the indoor environment is higher than the set temperature, the compressor and the fan are controlled to operate at the minimum power, so that the indoor environment temperature is maintained at the set temperature. The second temperature change value may optionally be 0.3-0.4 deg.c.
Further optionally, the air conditioner exits the noise reduction mode when receiving a control instruction of the air conditioner from a user during the execution of the noise reduction mode. When a user operates the air conditioner in the process of executing the noise reduction mode, the noise reduction mode is forcibly exited, and the air conditioner executes a control instruction of the user.
Further optionally, the noise reduction mode is executed when the air conditioner receives a noise reduction mode instruction. The user can enter the mode by remotely controlling the air conditioner through the remote controller, so that whether the noise reduction mode is executed or not can be determined according to the requirements of the user, and the use experience of the user is improved.
Further optionally, after the air conditioner receives the noise reduction mode instruction, an operation instruction of the air conditioner by a user is not received within a set time, and the noise reduction mode is executed. For example, when the air conditioner receives the noise reduction mode instruction and the user does not operate the air conditioner within 3min, the noise reduction mode is started, otherwise, the noise reduction mode is not executed.
The air conditioner of this embodiment falls the in-process of making an uproar earlier and falls to certain extent indoor ambient temperature, and the rethread judges indoor temperature variation value and reduces compressor operating frequency and reduces interior outer quick-witted fan operation gear, reaches the effect that reduces outdoor side noise through this kind of mode, improves user's travelling comfort.
The noise reduction control flowchart shown in fig. 1 includes the following steps:
s1, the air conditioner receives a noise reduction mode instruction sent by a user, judges whether an operation instruction of the user to the air conditioner is received within set time, if not, enters S2, and if so, exits the noise reduction mode;
s2: real-time detection of indoor ambient temperature T n ，
Determine the indoor ambient temperature T n And a set temperature T s Whether the difference of (A) satisfies | T | n -T s If the | < T, entering S3, and if the | < T > is not met, returning to S2;
s3, acquiring the indoor environment temperature T at intervals of a first preset interval n And calculating a temperature variation value T j ＝|T n -T n-1 |；
S4: judging the temperature variation value T j Whether or not T is satisfied j The temperature is more than or equal to the first temperature change value, and if the temperature is more than or equal to the first temperature change value, S5 is carried out; if not, entering S7;
s5, controlling the running frequency of the compressor to be reduced from the current running frequency to a set frequency value, and reducing the rotating speed of the fan from the current rotating speed gear to the next rotating speed gear;
s6, judging the temperature change value T j Whether or not: the second temperature variation value is less than or equal to T j If the first temperature change value is less than the first temperature change value, the step S7 is entered, and if the first temperature change value is not more than the first temperature change value, the step S5 is returned;
s7, maintaining the current running frequency of the compressor and the rotating speed of the fan;
s8: judging indoor environment temperature T n Whether or not the set temperature T is reached s If yes, the system operates with minimum power, and if not, the operation returns to S7.
The embodiment also provides an air conditioner which adopts the noise reduction control method.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A noise reduction control method of an air conditioner, characterized in that the air conditioner includes a noise reduction mode, and the noise reduction mode includes:
judging whether the indoor environment temperature meets the set temperature condition of the noise reduction mode or not;
if the set temperature condition is met, controlling the running frequency of the compressor and the rotating speed of the fan based on the change of the indoor environment temperature to reduce the outdoor side noise;
the judging whether the indoor environment temperature meets the set temperature condition of the noise reduction mode comprises the following steps:
obtaining an indoor environment temperature Tn; judging whether the difference value of the indoor environment temperature Tn and the set temperature Ts satisfies the following conditions: less than or equal to T in the | Tn-Ts |; if so, considering that the indoor environment temperature reaches the set temperature condition;
the operation frequency of the compressor and the rotation speed of the fan are controlled based on the change of the indoor environment temperature, and the method comprises the following steps: after the indoor temperature reaches the set temperature condition, acquiring the indoor environment temperature Tn at intervals of a first preset interval time, and calculating a temperature change value Tj, wherein Tj = | Tn-Tn-1|; when the condition that Tj is larger than or equal to a first temperature change value is met, reducing the operating frequency of the compressor and reducing the rotating speed of the fan; when the following conditions are met: when the second temperature change value is less than or equal to Tj and less than the first temperature change value, maintaining the running frequency of the existing compressor and the rotating speed of the fan until the indoor environment temperature Tn reaches the set temperature Ts; when the indoor ambient temperature Tn reaches the set temperature Ts, the compressor and the fan are controlled to operate at the minimum power.
2. The noise reduction control method of the air conditioner according to claim 1, wherein the temperature change value Tj and the first temperature change value are compared at intervals of a second preset interval, and as long as Tj is greater than or equal to the first temperature change value, the operating frequency of the compressor is controlled to be decreased to a set frequency value from the current operating frequency, and the rotating speed of the fan is decreased to a next rotating speed gear from the current rotating speed gear, wherein the first preset interval is less than or equal to the second preset interval.
3. The noise reduction control method of an air conditioner according to claim 1, wherein the reducing of the rotation speed of the fan is to reduce the rotation speed of both the indoor fan and the outdoor fan.
4. The method as claimed in any one of claims 1 to 3, wherein the air conditioner exits the noise reduction mode when receiving a control command from a user to the air conditioner during the execution of the noise reduction mode.
5. The noise reduction control method of an air conditioner according to claim 4, wherein the noise reduction mode is executed when the air conditioner receives a noise reduction mode command.
6. The method as claimed in claim 5, wherein after the air conditioner receives the command of the noise reduction mode, the air conditioner does not receive the operation command of the air conditioner from the user within a set time, and the noise reduction mode is executed.
7. An air conditioner characterized in that it employs the noise reduction control method of any one of claims 1 to 6.
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| CN114279119A (en) * | 2021-12-13 | 2022-04-05 | 江苏凤凰新云网络科技有限公司 | Control method for energy regulation of data center precision air conditioner |
| CN114963448B (en) * | 2022-05-20 | 2023-05-12 | 珠海格力电器股份有限公司 | Air conditioner control method and device, air conditioner and storage medium |
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