CN115493319A - Noise reduction control method of refrigeration equipment - Google Patents

Noise reduction control method of refrigeration equipment Download PDF

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Publication number
CN115493319A
CN115493319A CN202110680726.4A CN202110680726A CN115493319A CN 115493319 A CN115493319 A CN 115493319A CN 202110680726 A CN202110680726 A CN 202110680726A CN 115493319 A CN115493319 A CN 115493319A
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CN
China
Prior art keywords
compressor
fan
frequency
duty ratio
vibration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110680726.4A
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Chinese (zh)
Inventor
王少一
陈建全
万彦斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Chongqing Haier Refrigeration Electric Appliance Co Ltd
Original Assignee
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Chongqing Haier Refrigeration Electric Appliance Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Refrigerator Co Ltd, Haier Smart Home Co Ltd, Chongqing Haier Refrigeration Electric Appliance Co Ltd filed Critical Qingdao Haier Refrigerator Co Ltd
Priority to CN202110680726.4A priority Critical patent/CN115493319A/en
Publication of CN115493319A publication Critical patent/CN115493319A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/12—Sound
    • 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
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0253—Compressor control by controlling speed with variable speed
    • 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
    • F25B2600/11—Fan speed control

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The invention discloses a noise reduction control method of refrigeration equipment, which comprises the following steps: acquiring a starting signal of a compressor, and acquiring a fan vibration value V in real time after receiving the starting signal of the compressor fn And each vibration value V fn Corresponding compressor frequency f cn (ii) a Judging the vibration value V of the fan fn Whether the value is greater than a preset fan vibration threshold value V fa (ii) a At V fn ≥V fa In time, the compressor frequency or the fan duty ratio is adjusted until V fn <V fa (ii) a At V fn <V fa And adjusting the frequency of the compressor and the duty ratio of the fan according to the temperature of the refrigerating equipment room. The invention can prevent the resonance phenomenon of two noise sources of the fan and the compressor, thereby effectively reducing the noise of the refrigeration equipment.

Description

Noise reduction control method of refrigeration equipment
Technical Field
The invention relates to the technical field of electric appliances, in particular to a noise reduction control method of refrigeration equipment.
Background
The noise of the refrigeration equipment is an important index of the performance of the refrigeration equipment, the current noise sources of the refrigeration equipment mainly comprise the operation noise of a compressor at the bottom of the refrigeration equipment, the thermal expansion and cold contraction or eruption noise of an evaporator or a condenser, the operation noise of a refrigerating fan, the operation noise of a freezing fan, the flow noise of a refrigerant in a pipeline and the like, and the active or passive noise reduction of the noise sources of the refrigeration equipment is an important way for reducing the noise index.
Disclosure of Invention
The invention aims to provide a noise reduction control method of refrigeration equipment.
In order to achieve the above object, an embodiment of the present invention provides a noise reduction control system for a refrigeration apparatus, which is specifically designed as follows:
acquiring a starting signal of a compressor, and acquiring a fan vibration value V in real time after receiving the starting signal of the compressor fn And each vibration value V fn Corresponding compressor frequency f cn ；
Judging the vibration value V of the fan fn Whether the vibration is greater than a preset fan vibration threshold value V fa ；
At V fn ≥V fa In time, the compressor frequency or the fan duty ratio is adjusted until V fn <V fa ；
At V fn <V fa And adjusting the frequency of the compressor and the duty ratio of the fan according to the temperature of the refrigerating equipment room.
As a further improvement of an embodiment of the present invention, the frequency of the compressor is adjusted by a preset step length, and the frequency adjustment step length of the compressor is ± 1Hz.
As a further improvement of an embodiment of the present invention, the duty ratio of the fan is adjusted by a preset step length, and the duty ratio adjustment step length of the fan is ± 1%.
As a further improvement of an embodiment of the present invention, in V fn ≥V fa And acquiring the minimum vibration value V of the running fan of the compressor after the compressor is started fi And with V fi Frequency value f of compressor corresponding in real time ci Then controlling the compressor to frequency f ci The value runs.
As a further improvement of one embodiment of the present invention, the fan vibration threshold V fa ≤1.0m/s 2
In order to achieve one of the above objects, an embodiment of the present invention provides a noise reduction control method for a refrigeration apparatus, the control method including the steps of:
acquiring a starting signal of the compressor, and acquiring a vibration value V of the compressor in real time after receiving the starting signal of the compressor cn And each vibration value V cn Corresponding blower duty cycle D fn ；
Judging vibration value V of compressor cn Whether it is greater than preset compressor vibration threshold value V ca ；
At V cn ≥V ca In time, the compressor frequency or the fan duty ratio is adjusted until V cn <V ca ；
At V cn <V ca Adjusting the duty ratio of a fan and the frequency of a compressor according to the temperature of the refrigerating equipment room;
as a further improvement of an embodiment of the present invention, the frequency of the compressor is adjusted by a preset step length, and the frequency adjustment step length of the compressor is ± 1Hz.
As a further improvement of an embodiment of the present invention, the duty ratio of the fan is adjusted by a preset step length, and the duty ratio adjustment step length of the fan is ± 1%.
As a further improvement of an embodiment of the present invention, in V cn ≥V ca Then, obtaining the minimum vibration value V of the compressor after the compressor is started ci And with V ci Real-time corresponding duty ratio D of fan fi And then controlling the fan to have a duty ratio D fi The value runs.
As a further improvement of an embodiment of the present invention, said compressor vibration threshold V ca ≤1.2m/s 2 。
Compared with the prior art, the invention has the beneficial effects that: the frequency of the compressor or the duty ratio of the fan is adjusted, so that the contribution of the fan and the compressor to a noise source of the refrigeration equipment is not more than a vibration threshold value, the resonance phenomenon of the fan and the compressor is avoided, and the noise of the refrigeration equipment is effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the description of the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a noise reduction control method for a refrigeration apparatus according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a noise reduction control method of a refrigeration apparatus according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a noise reduction control method for a refrigeration apparatus according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a noise reduction control method of a refrigeration apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person skilled in the art without any creative work are included in the protection scope of the present invention.
The basic principle of the invention is as follows: when the refrigerating equipment runs, the fan and the compressor run together, and when the frequency or the rotating speed of the fan and the compressor are the same, a resonance phenomenon occurs. In order to avoid noise caused by resonance, the invention destroys the condition for realizing resonance by adjusting the state of either the fan or the compressor. According to the invention, through the vibration value feedback of the vibration sensor, when the vibration value exceeds a preset threshold value, the duty ratio of the fan and the frequency of the compressor are adjusted to prevent the resonance phenomenon. It should be noted that the refrigeration device may be a refrigerator, a freezer, a wine cabinet, or the like, and the fan may be a refrigerating fan or a freezing fan. The vibration value can be obtained by a vibration sensor, and can be a displacement sensor, a speed sensor or an acceleration sensor, of course, other sensor elements capable of detecting the vibration intensity can be adopted, and the threshold values set for the refrigeration equipment with different specifications are different.
Referring to fig. 1, the present invention provides a noise reduction control method for a refrigeration apparatus, the control method including:
acquiring a starting signal of a compressor, and acquiring a fan vibration value V in real time after receiving the starting signal of the compressor fn And each vibration value V fn Corresponding compressor frequency f cn ；
Judging the vibration value V of the fan fn Whether the vibration is greater than a preset fan vibration threshold value V fa ；
At V fn ≥V fa In time, the compressor frequency or the fan duty ratio is adjusted until V fn <V fa ；
At V fn <V fa And adjusting the frequency of the compressor and the duty ratio of the fan according to the temperature of the refrigerating equipment room.
It should be noted that the vibration value at the fan includes a vibration value of the fan itself and an influence value of compressor vibration on the fan.
Adjusting the compressor frequency can either increase the compressor vibration frequency or decrease the compressor vibration frequency. Preferably, the frequency of the compressor is adjusted in preset steps, the frequency of the compressor is adjusted in steps of ± 1Hz, i.e. the frequency is increased by 1Hz, or decreased by 1Hz, and the resonance can be avoided.
The duty ratio of the fan can be adjusted to increase the operation duty ratio of the fan and also reduce the operation duty ratio of the fan. The duty ratio of the fan is increased, the output voltage of the fan and the real-time rotating speed of the fan can be increased, the duty ratio of the fan is in direct proportion to the frequency and the rotating speed, therefore, the duty ratio of the fan is reduced, the frequency and the rotating speed of the fan are reduced, and if the duty ratio of the fan is increased, the frequency and the rotating speed are correspondingly increased. Preferably, the duty ratio of the fan is adjusted by a preset step length, the duty ratio adjustment step length of the fan is +/-1%, namely the duty ratio adjustment step length is increased by 1% or decreased by 1%, and resonance can be avoided.
Preferably, at V fn ≥V fa Time, judge V fn And V fa And controlling the duty ratio regulating quantity of the fan according to the difference value.
Specifically, when V fa +5≤V fn ≤V fa And when the current time is +10, controlling the duty ratio of the fan to increase/decrease by 5-10%.
Specifically, when V fa ≤V fn ≤V fa And +5, controlling the duty ratio of the fan to rise/fall by 1-5%.
Preferably, at V fn ≥V fa Time, judge V fn And V fa And controlling the frequency adjustment amount of the compressor according to the difference.
Specifically, when V fa +5≤V fn ≤V fa And +10, controlling the compressor to raise/lower by 5-10Hz.
Specifically, when V fa ≤V fn ≤V fa +5, control the compressor to raise/lower 1-5Hz.
Preferably, in the invention, an acceleration sensor is adopted to measure the vibration value of the fan, and the fan vibration threshold value V fa ≤1.0m/s 2 。
At V fn <V fa When the object to be cooled with higher temperature is placed in the refrigerator, the temperature of the refrigerating equipment room is higher, the frequency of the compressor can be increased to cool the object to be cooled, the duty ratio of the fan can be increased to blow cold into the room, and the temperature of the room is reduced. When the compartment temperature is low, the operating frequency of the compressor and the operating duty ratio of the fan can be reduced.
Referring to FIG. 2, in one embodiment of the present invention, V is fn ≥V fa And acquiring the minimum vibration value V of the running fan of the compressor after the compressor is started fi And with V fi Frequency value f of compressor corresponding in real time ci Then controlling the compressor to frequency f ci The value is run, so that the vibration influence value of the compressor on the fan is small, and the compressor canThe compressor and fan can be moved out of the resonance area.
Preferably, an acceleration sensor is used to measure the vibration value of the fan, and the fan vibration threshold value V is used fa ≤1.0m/s 2 。
Referring to fig. 3, the present invention provides a noise reduction control method for a refrigeration apparatus, the control method including:
acquiring a starting signal of the compressor, and acquiring a vibration value V of the compressor in real time after receiving the starting signal of the compressor cn And each vibration value V cn Corresponding blower duty cycle D fn ；
Judging compressor vibration value V cn Whether it is greater than preset compressor vibration threshold value V ca ；
At V cn ≥V ca In time, the compressor frequency or the fan duty ratio is adjusted until V cn <V ca ；
At V cn <V ca And adjusting the duty ratio of the fan and the frequency of the compressor according to the temperature of the refrigerating equipment room.
It should be noted that the vibration value at the compressor includes a vibration value of the compressor itself and an influence value of the fan vibration on the compressor.
Preferably, the frequency of the compressor is adjusted in preset steps, the frequency of the compressor is adjusted in steps of ± 1Hz, i.e. the frequency is increased by 1Hz, or decreased by 1Hz, and the resonance can be avoided.
Preferably, the duty ratio of the fan is adjusted by a preset step length, the duty ratio of the fan is adjusted by the step length of ± 1%, namely the duty ratio is increased by 1% or decreased by 1%, and resonance can be avoided.
Preferably, at V cn ≥V ca Time, judge V cn And V ca And controlling the duty ratio regulating quantity of the fan according to the difference value.
Specifically, when V ca +5≤V cn ≤V ca And when the current time is +10, controlling the duty ratio of the fan to increase/decrease by 5-10%.
Specifically, when V ca ≤V cn ≤V ca And when +5, controlling the duty ratio of the fan to increase/decrease by 1-5%.
Preferably, at V cn ≥V ca Time, judge V cn And V ca And controlling the frequency adjustment amount of the compressor according to the difference.
Specifically, when V ca +5≤V cn ≤V ca And +10, controlling the compressor to increase/decrease by 5-10Hz.
Specifically, when V ca ≤V cn ≤V ca And +5, controlling the compressor to increase/decrease by 1-5Hz.
Preferably, in the present invention, an acceleration sensor is used to measure a vibration value of the compressor, the compressor vibration threshold V ca ≤1.2m/s 2 。
At V cn <V ca When the object to be cooled with higher temperature is placed, the temperature of the refrigerating equipment room is higher, the frequency of the compressor can be increased to cool the object to be cooled, the duty ratio of the fan can be increased to blow cold into the room, and the temperature of the room is reduced. When the compartment temperature is low, the operating frequency of the compressor and the operating duty of the fan can be reduced.
As shown in FIG. 4, in the embodiment of the present invention, V is cn ≥V ca Then, obtaining the minimum vibration value V of the compressor after the compressor is started ci And with V ci Real-time corresponding duty ratio D of fan fi And then controlling the fan to have a duty ratio D fi The value is operated, so that the vibration influence value of the fan on the compressor is small, and the compressor and the fan can be moved out of a resonance area.
Preferably, an acceleration sensor is used to measure a compressor vibration value, said compressor vibration threshold value V ca ≤1.2m/s 2 。
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
Finally, it is noted that the above examples and comparative examples are only intended to illustrate the technical solutions of the present invention and are not intended to limit, and although the present invention has been described in detail by the above preferred embodiments, those skilled in the art will understand that various changes in form and detail can be made therein without departing from the scope of the present invention defined by the claims.

Claims (10)

1. A noise reduction control method of a refrigeration apparatus, characterized by comprising:
acquiring a starting signal of a compressor, and acquiring a fan vibration value V in real time after receiving the starting signal of the compressor fn And each vibration value V fn Corresponding compressor frequency f cn ；
Judging the vibration value V of the fan fn Whether the vibration is greater than a preset fan vibration threshold value V fa ；
At V fn ≥V fa In time, the compressor frequency or the fan duty ratio is adjusted until V fn <V fa ；
At V fn <V fa And adjusting the frequency of the compressor and the duty ratio of the fan according to the temperature of the refrigerating equipment room.
2. The noise reduction control method of a refrigerating apparatus according to claim 1, wherein the frequency of the compressor is adjusted in preset steps, and the frequency adjustment step of the compressor is ± 1Hz.
3. The noise reduction control method of the refrigeration equipment as claimed in claim 1, wherein the duty ratio of the fan is adjusted by a preset step, and the duty ratio adjustment step of the fan is ± 1%.
4. The noise reduction control method of a refrigeration apparatus according to claim 1, characterized in that at V fn ≥V fa And then, acquiring the fan operation after the compressor is startedMinimum value of line vibration V fi And with V fi Frequency value f of compressor corresponding in real time ci Then controlling the compressor to frequency f ci The value runs.
5. A noise reduction control method for a refrigeration device according to any of claims 1 to 4, characterized in that the fan vibration threshold V is fa ≤1.0m/s 2 。
6. A noise reduction control method of a refrigeration apparatus, characterized by comprising:
obtaining a starting signal of the compressor, and obtaining a vibration value V of the compressor in real time after receiving the starting signal of the compressor cn And each vibration value V cn Corresponding blower duty cycle D fn ；
Judging compressor vibration value V cn Whether it is greater than preset compressor vibration threshold value V ca ；
At V cn ≥V ca In time, the compressor frequency or the fan duty ratio is adjusted until V cn <V ca ；
At V cn <V ca And adjusting the duty ratio of the fan and the frequency of the compressor according to the temperature of the refrigerating equipment room.
7. The noise reduction control method of the refrigeration apparatus according to claim 6, wherein the frequency of the compressor is adjusted in preset steps, and the frequency adjustment step of the compressor is ± 1Hz.
8. The noise reduction control method of the refrigeration equipment as claimed in claim 6, wherein the fan duty ratio is adjusted in preset steps, and the adjustment step of the fan duty ratio is ± 1%.
9. The noise reduction control method of a refrigeration apparatus according to claim 6, characterized in that at V cn ≥V ca Then, obtaining the minimum vibration value V of the compressor after the compressor is started ci And with V ci Real-time corresponding duty ratio D of fan fi And then controlling the fan to have a duty ratio D fi The value runs.
10. Noise reduction control method for a refrigeration device according to any of claims 6 to 9, characterized in that the compressor vibration threshold V is ca ≤1.2m/s 2 。
CN202110680726.4A 2021-06-18 2021-06-18 Noise reduction control method of refrigeration equipment Pending CN115493319A (en)

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Application Number Priority Date Filing Date Title
CN202110680726.4A CN115493319A (en) 2021-06-18 2021-06-18 Noise reduction control method of refrigeration equipment

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Application Number Priority Date Filing Date Title
CN202110680726.4A CN115493319A (en) 2021-06-18 2021-06-18 Noise reduction control method of refrigeration equipment

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CN115493319A true CN115493319A (en) 2022-12-20

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05118626A (en) * 1991-10-25 1993-05-14 Sharp Corp Air conditioner
CN104048458A (en) * 2013-03-11 2014-09-17 广东美的制冷设备有限公司 Method and system for controlling blower of refrigeration equipment
CN104791983A (en) * 2015-04-24 2015-07-22 广东美的制冷设备有限公司 Device and method for restraining abnormal noise in starting process of heating of temperature-regulating system
CN110030683A (en) * 2019-03-11 2019-07-19 青岛海尔空调电子有限公司 Control method for air conditioner
CN111735174A (en) * 2020-06-22 2020-10-02 宁波奥克斯电气股份有限公司 Control method, device and equipment for sleep mode of air conditioner and storage medium
CN112128930A (en) * 2020-08-25 2020-12-25 青岛海尔空调器有限总公司 Method for avoiding resonance of refrigerant pipeline, control device and computer storage medium

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05118626A (en) * 1991-10-25 1993-05-14 Sharp Corp Air conditioner
CN104048458A (en) * 2013-03-11 2014-09-17 广东美的制冷设备有限公司 Method and system for controlling blower of refrigeration equipment
CN104791983A (en) * 2015-04-24 2015-07-22 广东美的制冷设备有限公司 Device and method for restraining abnormal noise in starting process of heating of temperature-regulating system
CN110030683A (en) * 2019-03-11 2019-07-19 青岛海尔空调电子有限公司 Control method for air conditioner
CN111735174A (en) * 2020-06-22 2020-10-02 宁波奥克斯电气股份有限公司 Control method, device and equipment for sleep mode of air conditioner and storage medium
CN112128930A (en) * 2020-08-25 2020-12-25 青岛海尔空调器有限总公司 Method for avoiding resonance of refrigerant pipeline, control device and computer storage medium

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