CN115507577A - Refrigerator control method and refrigerator - Google Patents

Refrigerator control method and refrigerator Download PDF

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Publication number
CN115507577A
CN115507577A CN202110699677.9A CN202110699677A CN115507577A CN 115507577 A CN115507577 A CN 115507577A CN 202110699677 A CN202110699677 A CN 202110699677A CN 115507577 A CN115507577 A CN 115507577A
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China
Prior art keywords
real
compressor
time
frequency
preset
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CN202110699677.9A
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Chinese (zh)
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CN115507577B (en
Inventor
许艳青
马坚
李晓峰
王铭
马丽学
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
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Priority to CN202110699677.9A priority Critical patent/CN115507577B/en
Publication of CN115507577A publication Critical patent/CN115507577A/en
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Publication of CN115507577B publication Critical patent/CN115507577B/en
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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
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/003—Arrangement or mounting of control or safety devices for movable devices
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/13—Vibrations
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2201/00—Insulation
    • F25D2201/30—Insulation with respect to sound
    • 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
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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

Abstract

The invention provides a refrigerator control method and a refrigerator, wherein the refrigerator control method comprises the following steps: acquiring real-time acceleration a of the compressor in preset X direction, Y direction and Z direction X 、a Y 、a Z Wherein the X direction, the Y direction and the Z direction are mutually orthogonal; the real-time acceleration a to be acquired X 、a Y 、a Z Acceleration threshold values A respectively corresponding to the preset X direction, Y direction and Z direction X 、A Y 、A Z Comparing to obtain the number of the real-time acceleration exceeding the acceleration threshold; controlling the operating frequency of the compressor according to the number of real-time accelerations exceeding an acceleration threshold; the noise that can reduce because of the compressor vibration brings promotes user's use and experiences.

Description

Refrigerator control method and refrigerator
Technical Field
The invention relates to the field of refrigeration devices, in particular to a control method of a refrigerator and the refrigerator.
Background
At present, noise in a refrigerator mainly comes from vibration of a compressor in a refrigeration system and resonance noise generated by various parts in the refrigerator, and a user is sensitive to the mechanical noise, so that excessive noise easily causes great reduction of comfort of the user.
In the prior art, a compressor is generally wrapped by a damping member, such as a damping strip, and after the compressor is started, the damping strip can absorb vibration generated by the compressor, so as to reduce vibration and noise. Although the vibration reducing member can reduce the vibration of the compressor, the degree of reduction is limited. That is, although the above-mentioned damper is provided, the vibration generated from the compressor can be transmitted to the compressor base plate and the bottom surface of the compressor housing through the damper to cause resonance, so that the effect of providing the damper to reduce the noise generated from the vibration of the compressor is very limited.
In view of the above, it is necessary to provide a new control method for a refrigerator and a refrigerator to solve the above problems.
Disclosure of Invention
The invention aims to provide a refrigerator control method and a refrigerator.
In order to achieve the purpose, the invention adopts the following technical scheme: a control method of a refrigerator; the method comprises the following steps:
acquiring real-time acceleration a of the compressor in preset X direction, Y direction and Z direction X 、a Y 、a Z Wherein the X direction, the Y direction and the Z direction are mutually orthogonal;
the real-time acceleration a to be acquired X 、a Y 、a Z Respectively aligned with the preset X direction and Y directionAcceleration threshold A of direction Z direction X 、A Y 、A Z Comparing to obtain the number of the real-time accelerated speeds exceeding the accelerated speed threshold value;
controlling the operating frequency of the compressor based on the amount of real-time acceleration that exceeds the acceleration threshold.
As a further improved technical solution of the present invention, when the "controlling the operation frequency of the compressor" is to reduce the operation frequency of the compressor, the more the number of the real-time accelerations exceeding the acceleration threshold value is, the lower the operation frequency of the compressor is.
As a further improved technical scheme of the invention, when the real-time acceleration quantity exceeding the acceleration threshold is 1, the step of controlling the running frequency of the compressor according to the real-time acceleration quantity exceeding the acceleration threshold comprises the step of controlling the compressor to reduce the first preset frequency f 1 The latter operating frequency is operated.
As a further improved technical solution of the present invention, after "the number of real-time accelerations exceeding the acceleration threshold is 1", the control method of the refrigerator further includes the steps of:
acquiring real-time temperature in a refrigerating chamber to obtain real-time temperature difference delta t between the real-time temperature and preset shutdown temperature;
judging whether the real-time temperature difference delta T is larger than a preset temperature difference delta T or not, if so, controlling the fan to increase the rotating speed n of the first fan 1 The latter speed runs.
As a further improved technical solution of the present invention, after "the number of real-time accelerations exceeding the acceleration threshold is 1", the control method of the refrigerator further includes the steps of:
acquiring real-time temperature in a refrigerating chamber to obtain real-time temperature difference delta t between the real-time temperature and preset shutdown temperature;
judging whether the real-time temperature difference delta T is larger than a preset temperature difference delta T or not, if so, controlling the running frequency of the compressor to be the second preset frequency f increased by controlling the compressor 2 The latter operating frequency is operated; if not, controlling the running frequency of the compressorFor controlling the compressor to reduce the first predetermined frequency f 1 The latter operating frequency is operated.
As a further improved technical solution of the present invention, when the number of the real-time accelerations exceeding the acceleration threshold is 2, "controlling the operation frequency of the compressor according to the number of the real-time accelerations exceeding the acceleration threshold" includes: controlling the compressor to reduce a third predetermined frequency f 3 The latter operating frequency is operated.
As a further improved technical solution of the present invention, after "the number of real-time accelerations exceeding the acceleration threshold is obtained as 2", the control method of the refrigerator further comprises the steps of:
acquiring real-time temperature in a refrigerating chamber, and acquiring real-time temperature difference delta t between the real-time temperature and preset shutdown temperature;
judging whether the real-time temperature difference delta T is larger than a preset temperature difference delta T or not, if yes, controlling the fan to improve the rotating speed n of the second fan 2 And the latter speed is operated.
As a further improved technical solution of the present invention, after "the number of real-time accelerations exceeding the acceleration threshold is obtained as 2", the control method of the refrigerator further comprises the steps of:
acquiring real-time temperature in a refrigerating chamber to obtain real-time temperature difference delta t between the real-time temperature and preset shutdown temperature;
judging whether the real-time temperature difference delta T is larger than a preset temperature difference delta T or not, if so, controlling the running frequency of the compressor to be the fourth preset frequency f increased by controlling the compressor 4 The latter operating frequency is operated; if not, controlling the running frequency of the compressor to reduce the third preset frequency f 3 The latter operating frequency is operated.
As a further improved technical solution of the present invention, when the number of the real-time accelerations exceeding the acceleration threshold is 3, "controlling the operation frequency of the compressor according to the number of the real-time accelerations exceeding the acceleration threshold" includes: controlling the compressor to reduce a fifth predetermined frequency f 5 The latter operating frequency is operated.
As a further improved technical solution of the present invention, after "the number of real-time accelerations exceeding the acceleration threshold is 3", the control method of the refrigerator further comprises the steps of:
acquiring real-time temperature in a refrigerating chamber, and acquiring real-time temperature difference delta t between the real-time temperature and preset shutdown temperature;
judging whether the real-time temperature difference delta T is larger than a preset temperature difference delta T or not, if so, controlling the fan to increase the rotating speed n of the third fan 3 The latter speed runs.
As a further improved technical solution of the present invention, the first preset frequency f 1 5% of the original running frequency.
As a further improved technical solution of the present invention, the third preset frequency f 3 10% of the original running frequency.
As a further improved technical solution of the present invention, the fifth preset frequency f 5 15% of the original running frequency.
As a further improved technical scheme of the invention, the acceleration threshold A X 、A Y 、A Z Are not more than 2m/s 2 。
In order to achieve the above object, the present invention further provides a refrigerator, which includes a compressor, a frequency conversion assembly fixed on the compressor, and a vibration sensor integrated on the frequency conversion assembly, wherein the vibration sensor is used for acquiring real-time acceleration a of the compressor in preset X, Y, and Z directions X 、a Y 、a Z Wherein the X direction, the Y direction and the Z direction are mutually orthogonal.
The invention has the beneficial effects that: according to the control method of the refrigerator, the running frequency of the compressor is controlled according to the number of the real-time accelerations exceeding the acceleration threshold, noise caused by vibration of the compressor can be reduced, and the use experience of a user is improved.
Drawings
Fig. 1 is a flowchart of a method for controlling a refrigerator in a first embodiment of the present invention.
Fig. 2 is a flowchart of a control method of a refrigerator in a second embodiment of the present invention.
Fig. 3 is a flowchart of a method for controlling a refrigerator in a third embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to the embodiments shown in the drawings, and reference is made to fig. 1 to 3, which are preferred embodiments of the present invention. It should be noted that these embodiments are not intended to limit the present invention, and those skilled in the art should be able to make functional, methodical, or structural equivalents or substitutions according to these embodiments without departing from the scope of the present invention.
The invention provides a refrigerator which comprises a refrigerating chamber, a refrigerating system for providing refrigerating capacity for the refrigerating chamber, a fan for conveying the refrigerating capacity generated by the refrigerating system into the refrigerating chamber, and a controller for controlling the operation of the refrigerator.
The refrigeration system comprises a variable frequency compressor, the variable frequency compressor is provided with a compressor and a variable frequency assembly in communication connection with the controller, and the variable frequency assembly is fixed on the compressor.
Further, the refrigerator still including integrated in vibration sensor on the frequency conversion subassembly, vibration sensor warp the frequency conversion subassembly with the controller communication is connected frequency conversion compressor starts the back, vibration sensor acquires the vibration acceleration of compressor through the vibration acceleration of sensing frequency conversion subassembly.
In the invention, the vibration sensor is directly integrated on the frequency conversion assembly, and a fixing part for fixing the vibration sensor is not required to be additionally arranged, so that the fixing structure of the vibration sensor is simplified; meanwhile, the communication connection between the vibration sensor and the controller is facilitated, and the wiring is facilitated.
Specifically, the vibration sensor is used for acquiring real-time acceleration a of the compressor in preset X direction, Y direction and Z direction which are orthogonal to each other X 、a Y 、a Z 。
It is understood thatAcceleration of time a X The real-time acceleration of the compressor in the preset X direction is obtained; real time acceleration a Y The real-time acceleration of the compressor in the preset Y direction is obtained; real time acceleration a Z Namely the real-time acceleration of the compressor in the preset Z direction. And the X direction, the Y direction and the Z direction are mutually orthogonal.
In the refrigerator of the present invention, except for the installation position between the vibration sensor and the inverter compressor, other structures and the like can follow the corresponding structures of the refrigerator in the prior art, and thus, the details are not repeated herein.
Further, the present invention also provides a control method for controlling the above refrigerator, the control method for the refrigerator includes the following steps:
acquiring real-time acceleration a of the compressor in preset X direction, Y direction and Z direction X 、a Y 、a Z Wherein the X direction, the Y direction and the Z direction are mutually orthogonal;
the real-time acceleration a to be acquired X 、a Y 、a Z Respectively corresponding to preset acceleration threshold values A in the X direction, the Y direction and the Z direction X 、A Y 、A Z Comparing;
controlling the operating frequency of the compressor based on the amount of real-time acceleration that exceeds the acceleration threshold.
Specifically, "obtain real-time acceleration a of the compressor in preset X, Y, Z directions X 、a Y 、a Z The method specifically comprises the following steps: the real-time acceleration a of the compressor in the preset X direction, Y direction and Z direction is respectively obtained through the vibration sensor X 、a Y 、a Z (ii) a Of course, this is not a limitation.
Step "will obtain the said real-time acceleration a X 、a Y 、a Z Respectively corresponding to preset acceleration threshold values A in the X direction, the Y direction and the Z direction X 、A Y 、A Z The comparison concretely comprises the following steps:
the real-time acceleration a of the compressor in the X direction is obtained X Acceleration threshold A in the X direction X Comparing the acquired real-time acceleration a of the compressor in the Y direction Y With a predetermined acceleration threshold A in the Y direction Y Comparing the acquired real-time acceleration a of the compressor in the Z direction Z Acceleration threshold A in the Z direction Z And (6) comparing.
Further, the acceleration threshold A X 、A Y 、A Z Are not more than 2m/s 2 。
In one embodiment, the acceleration threshold A X 、A Y 、A Z Is taken to be 2m/s 2 Of course, the present invention is not limited thereto.
It will be appreciated that the number of real-time accelerations exceeding the acceleration threshold may be 0, or 1, or 2, or 3.
Specifically, the "real-time acceleration amount exceeding the acceleration threshold value" is 0", that is, the real-time acceleration a of the compressor in the X direction is X Less than a predetermined acceleration threshold A in the X direction X Real-time acceleration a of the compressor in the Y direction Y An acceleration threshold A smaller than the preset Y direction Y Real time acceleration a of the compressor in the Z direction Z Less than a predetermined acceleration threshold A in the Z direction X 。
"the real-time acceleration amount exceeding the acceleration threshold is 1", that is, the real-time acceleration a of the compressor in the X direction X Greater than a preset acceleration threshold A in the X direction X Or real-time acceleration a of the compressor in the Y direction Y Greater than a preset acceleration threshold A in the Y direction Y Or real-time acceleration a of the compressor in the Z direction Z Greater than a preset acceleration threshold A in the Z direction Z 。
"the number of real-time accelerations exceeding the acceleration threshold is 2" means that the real-time acceleration a of the compressor in the X direction X Greater than a preset acceleration threshold A in the X direction X Real time acceleration a of the compressor in the Y direction Y Greater than a preset acceleration threshold A in the Y direction Y Real-time acceleration a of the compressor in the Z-direction Z Acceleration threshold less than preset Z directionValue A Z (ii) a Or the real-time acceleration a of the compressor in the X direction X Greater than a preset acceleration threshold A in the X direction X Real-time acceleration a of the compressor in the Y direction Y Less than a predetermined acceleration threshold A in the Y direction Y Real-time acceleration a of the compressor in the Z-direction Z Greater than a preset acceleration threshold A in the Z direction Z (ii) a Or real-time acceleration a of the compressor in the X direction X Less than a predetermined acceleration threshold A in the X direction X Real-time acceleration a of the compressor in the Y direction Y Greater than a preset acceleration threshold A in the Y direction Y Real-time acceleration a of the compressor in the Z-direction Z Greater than a preset acceleration threshold A in the Z direction Z 。
"the number of real-time accelerations exceeding the acceleration threshold is 3", that is, the real-time acceleration a of the compressor in the X direction X Greater than a preset acceleration threshold A in the X direction X While the real-time acceleration a of the compressor in the Y direction Y Greater than a preset acceleration threshold A in the Y direction Y While the compressor is accelerated in real time in the Z direction by an acceleration a Z Greater than a preset acceleration threshold A in the Z direction Z 。
It is understood that when the number of the real-time accelerations exceeding the acceleration threshold value is 0, it indicates that the vibration of the compressor is small, and in addition, the larger the number of the real-time accelerations exceeding the acceleration threshold value, it indicates that the vibration of the compressor is large and the more noise is generated.
Further, when the "controlling the operation frequency of the compressor" is to decrease the operation frequency of the compressor, the more the number of the real-time accelerations exceeding the acceleration threshold value is, the lower the operation frequency of the compressor is.
That is, the more the number of the real-time acceleration exceeding the acceleration threshold value, the larger the frequency reduction amplitude of the compressor is, so that the vibration of the compressor can be reduced, the noise can be reduced, and the use experience of a user can be improved.
Further, when the number of the real-time accelerations exceeding the acceleration threshold is 0, "controlling the operation frequency of the compressor according to the number of the real-time accelerations exceeding the acceleration threshold" is: and controlling the compressor to keep the original running frequency.
When the number of real-time accelerations exceeding the acceleration threshold is 1, in one embodiment, the step of "controlling the operating frequency of the compressor according to the number of real-time accelerations exceeding the acceleration threshold" is: controlling the compressor to reduce the first predetermined frequency f 1 The latter operating frequency is operated.
Namely, the running frequency of the compressor is reduced to reduce the vibration amplitude of the compressor, so that the effect of reducing noise is achieved, and the use experience of a user is improved.
In one embodiment, the first predetermined frequency f 1 5% of the original running frequency. Of course, this is not a limitation.
The above and hereinafter original operating frequency refers to the operating frequency of the compressor before the step of "controlling the operating frequency of the compressor according to the amount of real-time acceleration exceeding the acceleration threshold".
Further, after "the number of real-time accelerations exceeding the acceleration threshold is 1", the control method of the refrigerator further includes the steps of:
acquiring real-time temperature in a refrigerating chamber to obtain real-time temperature difference delta t between the real-time temperature and preset shutdown temperature;
judging whether the real-time temperature difference delta T is larger than a preset temperature difference delta T or not, if yes, controlling the fan to improve the rotating speed n of the first fan 1 The later rotating speed operation; if not, controlling the fan to maintain the original rotating speed to operate.
It can be understood that when the real-time temperature difference Δ T is greater than the preset temperature difference Δ T, it indicates that the cooling capacity requirement in the refrigeration chamber is large, and at this time, the operating frequency of the compressor is reduced due to the noise problem of the compressor, and the cooling capacity of the refrigeration system is reduced, so that the temperature fluctuation in the refrigeration chamber is large, and the fresh-keeping effect is affected. Therefore, the running frequency of the compressor is reduced, and the rotating speed of the fan is increased at the same time, so that the heat exchange efficiency is improved, the temperature fluctuation in the refrigerating chamber is reduced, and the refrigerating chamber reaches the shutdown temperature as soon as possible.
In particular toThe preset temperature difference delta T =5 ℃, and n is 1 The rotation speed is 5 percent of the original rotation speed. Of course, this is not a limitation.
The above and hereinafter original rotation speed refers to the operation rotation speed of the fan before the step of controlling the operation frequency of the compressor according to the number of real-time accelerations exceeding the acceleration threshold.
When the number of the real-time accelerations exceeding the acceleration threshold is 1, in another embodiment, after "the number of the real-time accelerations exceeding the acceleration threshold is 1", the control method of the refrigerator further includes the steps of:
acquiring real-time temperature in a refrigerating chamber to obtain real-time temperature difference delta t between the real-time temperature and preset shutdown temperature;
judging whether the real-time temperature difference delta T is larger than a preset temperature difference delta T or not, if so, controlling the running frequency of the compressor to be the second preset frequency f increased by controlling the compressor 2 The latter operating frequency is operated; if not, controlling the running frequency of the compressor to reduce the first preset frequency f 1 The latter operating frequency is operated.
It can be understood that, in the embodiment, only when the real-time temperature difference Δ T is smaller than the preset temperature difference Δ T, that is, the cooling capacity requirement in the refrigeration chamber is low, the vibration amplitude of the compressor is reduced by reducing the operating frequency of the compressor, so that the effect of reducing noise is achieved, and the use experience of a user is improved.
When the real-time temperature difference delta T is greater than the preset temperature difference delta T, the fact that the cooling capacity needed in the refrigerating chamber is large is indicated, at the moment, if the operation frequency of the compressor is reduced, the cooling capacity of a refrigerating system can be reduced, and the temperature fluctuation in the refrigerating chamber is large, so that in the embodiment, the operation frequency of the compressor is staggered with the resonance frequency by improving the operation frequency of the compressor, the vibration noise caused by frequency resonance is reduced, and the purpose of reducing the noise is achieved; meanwhile, the running frequency of the compressor is improved, the cooling capacity of the refrigerating system can be increased, and the refrigerating chamber can be rapidly refrigerated.
In particular, the secondPredetermined frequency f 2 The frequency is set to 5% of the original operating frequency, and the influence of the vibration and resonance of the compressor on the noise due to the frequency increase is also taken into consideration, but the frequency is not limited to this.
When the number of real-time accelerations exceeding the acceleration threshold is 2, in one embodiment, the step of "controlling the operating frequency of the compressor according to the number of real-time accelerations exceeding the acceleration threshold" is: controlling the compressor to reduce a third predetermined frequency f 3 The latter operating frequency is operated.
Namely, the running frequency of the compressor is reduced to reduce the vibration amplitude of the compressor, so that the effect of reducing noise is achieved, and the use experience of a user is improved.
Specifically, when the "controlling the operating frequency of the compressor" is to decrease the operating frequency of the compressor according to the above, the more the number of the real-time accelerations exceeding the acceleration threshold value is, the lower the operating frequency of the compressor is. Third predetermined frequency f 3 Greater than a first predetermined frequency f 1 Whereby the compressor reduces the third preset frequency f 3 The latter operating frequency is less than the compressor to reduce the first preset frequency f 1 The latter operating frequency. Can reach the better effect of making an uproar of falling.
In one embodiment, the third predetermined frequency f 3 10% of the original running frequency. Of course, this is not a limitation.
Further, after "the number of real-time accelerations exceeding the acceleration threshold is found to be 2", the control method of the refrigerator further includes the steps of:
acquiring real-time temperature in a refrigerating chamber, and acquiring real-time temperature difference delta t between the real-time temperature and preset shutdown temperature;
judging whether the real-time temperature difference delta T is larger than a preset temperature difference delta T or not, if so, controlling the fan to increase the rotating speed n of the second fan 2 The later rotating speed operation; if not, controlling the fan to maintain the original rotating speed to operate.
It can be understood that when the real-time temperature difference Δ T is greater than the preset temperature difference Δ T, it indicates that the cooling capacity requirement in the refrigeration chamber is large, and at this time, the operating frequency of the compressor is reduced due to the noise problem of the compressor, and the cooling capacity of the refrigeration system is reduced, so that the temperature fluctuation in the refrigeration chamber is large, and the fresh-keeping effect is affected. Therefore, the running frequency of the compressor is reduced, and the rotating speed of the fan is increased at the same time, so that the heat exchange efficiency is improved, the temperature fluctuation in the refrigerating chamber is reduced, and the refrigerating chamber reaches the shutdown temperature as soon as possible.
Specifically, the preset temperature difference Δ T =5 ℃.
In one embodiment, n is 2 The actual rotational speed is 10% of the original rotational speed, it can be understood that when the number of the real-time accelerations exceeding the acceleration threshold is 2, the operating frequency of the compressor is compared with the operating frequency of the compressor when the number of the real-time accelerations exceeding the acceleration threshold is 1, that is, the cooling capacity of the refrigeration system is lower, so that the rotational speed of the fan is further increased compared with when the number of the real-time accelerations exceeding the acceleration threshold is 1, the heat exchange efficiency can be further improved, the temperature fluctuation in the refrigeration compartment is reduced, and a better fresh-keeping effect is achieved to enable the refrigeration compartment to reach the shutdown temperature as soon as possible.
When the number of the real-time accelerations exceeding the acceleration threshold is 2, in another embodiment, after "the number of the real-time accelerations exceeding the acceleration threshold is 2", the control method of the refrigerator further includes the steps of:
acquiring real-time temperature in a refrigerating chamber to obtain real-time temperature difference delta t between the real-time temperature and preset shutdown temperature;
judging whether the real-time temperature difference delta T is larger than a preset temperature difference delta T or not, if yes, controlling the running frequency of the compressor to be the fourth preset frequency f which is increased by controlling the compressor 4 The latter operating frequency is operated; if not, controlling the running frequency of the compressor to reduce the third preset frequency f 3 The latter operating frequency is operated.
It can be understood that, in the embodiment, only when the real-time temperature difference Δ T is smaller than the preset temperature difference Δ T, that is, the cooling capacity requirement in the refrigeration chamber is low, the vibration amplitude of the compressor is reduced by reducing the operating frequency of the compressor, so that the effect of reducing noise is achieved, and the use experience of a user is improved.
When the real-time temperature difference delta T is greater than the preset temperature difference delta T, the fact that the cooling capacity needed in the refrigerating chamber is large is indicated, at the moment, if the operation frequency of the compressor is reduced, the cooling capacity of a refrigerating system can be reduced, and the temperature fluctuation in the refrigerating chamber is large, so that in the embodiment, the operation frequency of the compressor is staggered with the resonance frequency by improving the operation frequency of the compressor, the vibration noise caused by frequency resonance is reduced, and the purpose of reducing the noise is achieved; meanwhile, the running frequency of the compressor is improved, the cooling capacity of the refrigerating system can be increased, and the refrigerating chamber can be rapidly refrigerated.
In particular, the fourth preset frequency f 4 The operating frequency is set to 5% of the original operating frequency, and the influence of the vibration and resonance of the compressor on the noise caused by the frequency increase is taken into consideration, but the operating frequency is not limited to this.
When the number of real-time accelerations exceeding the acceleration threshold is 3, which indicates that the vibration amplitude of the compressor is too large, it is necessary and only possible to reduce the vibration amplitude of the compressor by reducing the operating frequency of the compressor, thereby reducing the noise.
Specifically, when the number of the real-time accelerations exceeding the acceleration threshold is 3, the step of "controlling the operating frequency of the compressor according to the number of the real-time accelerations exceeding the acceleration threshold" is: controlling the compressor to reduce a fifth predetermined frequency f 5 The latter operating frequency is operated.
Namely, the running frequency of the compressor is reduced to reduce the vibration amplitude of the compressor, so that the effect of reducing noise is achieved, and the use experience of a user is improved.
Specifically, when the "controlling the operation frequency of the compressor" is to decrease the operation frequency of the compressor according to the above, the more the number of the real-time accelerations exceeding the acceleration threshold value, the lower the operation frequency of the compressor. Fifth predetermined frequency f 5 Third preset frequency f 3 Greater than a first predetermined frequency f 1 Whereby the compressor reduces the fifth preset frequency f 5 After transportThe line frequency is less than the compressor to reduce the third predetermined frequency f 3 The later operation frequency can achieve better noise reduction effect.
In one embodiment, the fifth predetermined frequency f 5 15% of the original running frequency. Of course, this is not a limitation.
Further, after "the number of real-time accelerations exceeding the acceleration threshold is found to be 3", the control method of the refrigerator further includes the steps of:
acquiring real-time temperature in a refrigerating chamber to obtain real-time temperature difference delta t between the real-time temperature and preset shutdown temperature;
judging whether the real-time temperature difference delta T is larger than a preset temperature difference delta T or not, if yes, controlling the fan to improve the rotating speed n of the third fan 3 The later rotating speed operation; if not, controlling the fan to maintain the original rotating speed to operate.
It can be understood that when the real-time temperature difference Δ T is greater than the preset temperature difference Δ T, it indicates that the cooling capacity requirement in the refrigeration chamber is large, and at this time, the operating frequency of the compressor is reduced due to the noise problem of the compressor, and the cooling capacity of the refrigeration system is reduced, so that the temperature fluctuation in the refrigeration chamber is large, and the fresh-keeping effect is affected. Therefore, the running frequency of the compressor is reduced, and the rotating speed of the fan is increased at the same time, so that the heat exchange efficiency is improved, the temperature fluctuation in the refrigerating chamber is reduced, and the refrigerating chamber reaches the shutdown temperature as soon as possible.
Specifically, the preset temperature difference Δ T =5 ℃.
In one embodiment, n is 3 The actual rotational speed is 15% of the original rotational speed, it can be understood that when the real-time acceleration exceeding the acceleration threshold is 3, the operating frequency of the compressor is compared with the operating frequency of the compressor when the real-time acceleration exceeding the acceleration threshold is 2 or 1, that is, the cooling capacity of the refrigeration system is lower, so that the rotational speed of the fan is further increased when the real-time acceleration exceeding the acceleration threshold is 1 or 2, the heat exchange efficiency can be further improved, the temperature fluctuation in the refrigeration compartment is reduced, and a better fresh-keeping effect is achieved, so that the refrigeration compartment reaches the shutdown temperature as soon as possible.
Referring to fig. 1, a method for controlling a refrigerator according to a first embodiment of the present invention, in the method for controlling a refrigerator, "controlling a frequency of a compressor according to a number of real-time accelerations exceeding an acceleration threshold" specifically includes:
when the real-time acceleration quantity exceeding the acceleration threshold value is 0, controlling the compressor to keep the original running frequency;
controlling the compressor to reduce the first preset frequency f when the number of real-time accelerations exceeding the acceleration threshold is 1 1 The latter operating frequency is operated;
controlling the compressor to reduce the third preset frequency f when the number of real-time accelerations exceeding the acceleration threshold is 2 3 The latter operating frequency is operated;
controlling the compressor to reduce the fifth preset frequency f when the number of real-time accelerations exceeding the acceleration threshold is 3 5 The latter operating frequency is operated;
wherein f is 1 ＜f 3 ＜f 5 。
In this embodiment, the compressor is controlled to reduce the frequency, and the rotating speed of the compressor is reduced, so that the vibration of the compressor can be reduced, the noise is reduced, and the use experience of a user is improved.
Simultaneously, the more the quantity of the real-time acceleration that surpasss the acceleration threshold value, the range of falling the frequency of compressor is big more to, can reduce the vibration of compressor according to particular case, noise abatement promotes user's use and experiences.
In particular, the first preset frequency f 1 5% of the original running frequency; the third preset frequency f 3 10% of the original running frequency; the fifth preset frequency f 5 The frequency is 15% of the original operating frequency, and of course, the operation frequency is not limited thereto.
Referring to fig. 2, a method for controlling a refrigerator according to a second embodiment of the present invention is shown, and the second embodiment is different from the first embodiment only in that:
after "obtaining the number of real-time accelerations exceeding the acceleration threshold", the control method of the refrigerator further includes the steps of:
acquiring real-time temperature in a refrigerating chamber to obtain real-time temperature difference delta t between the real-time temperature and preset shutdown temperature;
judging whether the real-time temperature difference delta T is larger than a preset temperature difference delta T or not, if so, controlling the fan to operate at a rotating speed after the rotating speed of the preset fan is increased; if not, controlling the fan to maintain the original rotating speed to operate.
It can be understood that when the real-time temperature difference Δ T is greater than the preset temperature difference Δ T, it indicates that the cooling demand in the refrigeration chamber is relatively large, and at this time, the operating frequency of the compressor is reduced due to the noise problem of the compressor, and the cooling capacity of the refrigeration system is reduced, so that the temperature fluctuation in the refrigeration chamber is relatively large, and the fresh-keeping effect is influenced. Therefore, the running frequency of the compressor is reduced, and the rotating speed of the fan is increased at the same time, so that the heat exchange efficiency is improved, the temperature fluctuation in the refrigerating chamber is reduced, and the refrigerating chamber reaches the shutdown temperature as soon as possible.
Specifically, the preset temperature difference Δ T =5 ℃.
In a specific embodiment, the "controlling the fan to operate at a rotation speed after the rotation speed of the fan is increased by the preset rotation speed" includes the following conditions:
when the real-time acceleration quantity exceeding the acceleration threshold value is 1, controlling the fan to increase the rotating speed n of the first fan 1 The later rotating speed operation;
when the real-time acceleration quantity exceeding the acceleration threshold value is 2, controlling the fan to increase the rotating speed n of the second fan 2 The later rotating speed operation;
when the real-time acceleration quantity exceeding the acceleration threshold value is 3, controlling the fan to increase the rotating speed n of the third fan 3 The later rotating speed operation;
wherein the first fan speed n 1 < second fan speed n 2 < third fan speed n 3 。
It can be understood that the more the real-time acceleration exceeding the acceleration threshold, the lower the running frequency of the corresponding compressor, that is, the lower the cooling capacity of the refrigeration system, so that the rotating speed of the fan needs to be further increased, the heat exchange efficiency can be further improved, the temperature fluctuation in the refrigeration chamber can be reduced, and a better fresh-keeping effect can be achieved to enable the refrigeration chamber to reach the shutdown temperature as soon as possible.
In one embodiment, the first fan speed n 1 5% of the original rotation speed, and the rotation speed n of the second fan 2 10% of the original rotation speed, and the rotation speed n of the third fan 3 15% of the original rotation speed. Of course, this is not a limitation.
The second embodiment of the present invention is the same as the first embodiment except for the above differences, and thus, the description thereof is omitted.
Referring to fig. 3, a method for controlling a refrigerator according to a third embodiment of the present invention is different from the second embodiment in that: when the real-time acceleration exceeding the acceleration threshold is 1 or 2, if the real-time temperature difference delta T is greater than the preset temperature difference delta T, the compressor is controlled to operate at the operating frequency after the preset frequency is increased, and at the moment, the rotating speed of the fan is not increased.
When the real-time temperature difference delta T is greater than the preset temperature difference delta T, the fact that the cooling capacity needed in the refrigerating chamber is large is indicated, at the moment, if the operation frequency of the compressor is reduced, the cooling capacity of a refrigerating system can be reduced, the temperature fluctuation in the refrigerating chamber is large, and the fresh-keeping effect is affected, therefore, in the third implementation mode, when the number of real-time acceleration exceeding an acceleration threshold is 1 or 2, namely the vibration amplitude of the compressor is not particularly large, the operation frequency of the compressor is increased, the operation frequency of the compressor is staggered with the resonance frequency, and the vibration noise caused by frequency resonance is reduced, so that the purpose of reducing the noise is achieved; meanwhile, the cooling capacity of the refrigerating system can be increased, and the refrigerating chamber can be rapidly refrigerated.
Specifically, when the real-time acceleration quantity exceeding the acceleration threshold is 1, if the real-time temperature difference Δ T is greater than the preset temperature difference Δ T, the compressor is controlled to increase the second preset frequency f 2 The latter operating frequency is operated; when the real-time acceleration exceeding the acceleration threshold is 2, if the real-time temperature difference delta T is greater than the preset temperature difference delta T, controlling the compressor to increase the fourth preset frequency f 4 After transportThe line frequency runs.
In one embodiment, the second predetermined frequency f 2 And a fourth predetermined frequency f 4 The operating frequency is 5% of the original operating frequency, and the influence of the vibration and resonance of the compressor on the noise caused by the frequency increase is considered, but the invention is not limited to this.
It will be appreciated that when the number of real-time accelerations exceeding the acceleration threshold is 3, which indicates that the amplitude of vibration of the compressor is too great, it is necessary and only possible to reduce the amplitude of vibration of the compressor by reducing the operating frequency of the compressor, thus reducing the noise. Therefore, when the number of real-time accelerations exceeding the acceleration threshold is 3, the corresponding control method in the second embodiment may be continued.
The third embodiment and the second embodiment of the present invention have the same steps except for the above differences, and are not described herein again.
In summary, in the control method of the refrigerator according to the present invention, the operation frequency of the compressor is controlled according to the number of real-time accelerations exceeding the acceleration threshold, so that noise caused by vibration of the compressor can be reduced, and user experience can be improved.
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.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims (15)

1. A control method of a refrigerator; the method is characterized in that: the control method of the refrigerator comprises the following steps:
acquiring real-time acceleration a of the compressor in preset X direction, Y direction and Z direction X 、a Y 、a Z Wherein the X direction, the Y direction and the Z direction are mutually orthogonal;
the real-time acceleration a to be acquired X 、a Y 、a Z Acceleration threshold values A respectively corresponding to the preset X direction, Y direction and Z direction X 、A Y 、A Z Comparing to obtain the number of the real-time accelerated speeds exceeding the accelerated speed threshold value;
controlling the operating frequency of the compressor based on the amount of real-time acceleration that exceeds the acceleration threshold.
2. The control method of a refrigerator as claimed in claim 1, wherein: in the case of "controlling the operation frequency of the compressor" to lower the operation frequency of the compressor, the more the number of real-time accelerations exceeding the acceleration threshold value, the lower the operation frequency of the compressor.
3. The control method of a refrigerator as claimed in claim 2, wherein: when the real-time acceleration quantity exceeding the acceleration threshold value is 1, the operation frequency of the compressor is controlled according to the real-time acceleration quantity exceeding the acceleration threshold value, namely, the compressor is controlled to reduce the first preset frequency f 1 The latter operating frequency is operated.
4. The control method of a refrigerator according to claim 3, wherein: after "the number of real-time accelerations exceeding the acceleration threshold is 1", the control method of the refrigerator further includes the steps of:
acquiring real-time temperature in a refrigerating chamber, and acquiring real-time temperature difference delta t between the real-time temperature and preset shutdown temperature;
judging whether the real-time temperature difference delta T is larger than a preset temperature difference delta T or not, if so, controlling the fan to increase the rotating speed n of the first fan 1 The latter speed runs.
5. The control method of a refrigerator as claimed in claim 2, wherein: after "the number of real-time accelerations exceeding the acceleration threshold is 1", the control method of the refrigerator further includes the steps of:
acquiring real-time temperature in a refrigerating chamber to obtain real-time temperature difference delta t between the real-time temperature and preset shutdown temperature;
judging whether the real-time temperature difference delta T is larger than a preset temperature difference delta T or not, if so, controlling the running frequency of the compressor to be the second preset frequency f increased by controlling the compressor 2 The latter operating frequency is operated; if not, controlling the running frequency of the compressor to reduce the first preset frequency f 1 The latter operating frequency is operated.
6. The control method of a refrigerator as claimed in claim 2, wherein: when the number of the real-time accelerations exceeding the acceleration threshold is 2, "controlling the operation frequency of the compressor according to the number of the real-time accelerations exceeding the acceleration threshold" is: controlling the compressor to reduce a third predetermined frequency f 3 The latter operating frequency is operated.
7. The control method of a refrigerator of claim 6, wherein: after "the number of real-time accelerations exceeding the acceleration threshold is found to be 2", the control method of the refrigerator further includes the steps of:
acquiring real-time temperature in a refrigerating chamber to obtain real-time temperature difference delta t between the real-time temperature and preset shutdown temperature;
judging whether the real-time temperature difference delta T is larger than a preset temperature difference delta T or not, if so, controlling the fan to increase the rotating speed n of the second fan 2 The latter speed runs.
8. The control method of a refrigerator as claimed in claim 2, wherein: after "the number of real-time accelerations exceeding the acceleration threshold is found to be 2", the control method of the refrigerator further includes the steps of:
acquiring real-time temperature in a refrigerating chamber to obtain real-time temperature difference delta t between the real-time temperature and preset shutdown temperature;
judging whether the real-time temperature difference delta T is larger than a preset temperature difference delta T or not, if yes, controlling the running frequency of the compressor to be the fourth preset frequency f which is increased by controlling the compressor 4 The latter operating frequency is operated; if not, controlling the running frequency of the compressor to reduce the third preset frequency f 3 The latter operating frequency is operated.
9. The control method of a refrigerator of claim 2, wherein: when the number of the real-time accelerations exceeding the acceleration threshold is 3, "controlling the operation frequency of the compressor according to the number of the real-time accelerations exceeding the acceleration threshold" is: controlling the compressor to reduce a fifth predetermined frequency f 5 The latter operating frequency is operated.
10. The control method of a refrigerator as claimed in claim 9, wherein: after "the number of real-time accelerations exceeding the acceleration threshold is found to be 3", the control method of the refrigerator further includes the steps of:
acquiring real-time temperature in a refrigerating chamber to obtain real-time temperature difference delta t between the real-time temperature and preset shutdown temperature;
judging whether the real-time temperature difference delta T is larger than a preset temperature difference delta T or not, if so, controlling the fan to increase the rotating speed n of the third fan 3 The latter speed runs.
11. The control method of a refrigerator according to claim 3 or 5, wherein: the first preset frequency f 1 5% of the original running frequency.
12. The control method of a refrigerator according to claim 6 or 8, wherein: the third preset frequency f 3 10% of the original running frequency.
13. The control method of the refrigerator as claimed in claim 9The method is characterized in that: the fifth preset frequency f 5 15% of the original running frequency.
14. The control method of a refrigerator as claimed in claim 1, wherein: the acceleration threshold A X 、A Y 、A Z Are not more than 2m/s 2 。
15. A refrigerator, characterized in that: the refrigerator comprises a compressor, a frequency conversion assembly fixed on the compressor, and a vibration sensor integrated on the frequency conversion assembly, wherein the vibration sensor is used for acquiring real-time acceleration a of the compressor in the preset X direction, Y direction and Z direction X 、a Y 、a Z Wherein the X direction, the Y direction and the Z direction are mutually orthogonal.
CN202110699677.9A 2021-06-23 2021-06-23 Refrigerator control method and refrigerator Active CN115507577B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5251933A (en) * 1990-06-28 1993-10-12 Takata Corporation Seat belt retractor
KR20050056722A (en) * 2003-12-10 2005-06-16 삼성전자주식회사 Refrigerator and control method thereof
CN101788851A (en) * 2010-02-22 2010-07-28 中国电信股份有限公司 Method and system for simulating motion of handle
JP2012143513A (en) * 2011-01-14 2012-08-02 Sharp Corp Washing machine
JP2015038408A (en) * 2013-08-19 2015-02-26 パナソニック株式会社 Refrigerator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5251933A (en) * 1990-06-28 1993-10-12 Takata Corporation Seat belt retractor
KR20050056722A (en) * 2003-12-10 2005-06-16 삼성전자주식회사 Refrigerator and control method thereof
CN101788851A (en) * 2010-02-22 2010-07-28 中国电信股份有限公司 Method and system for simulating motion of handle
JP2012143513A (en) * 2011-01-14 2012-08-02 Sharp Corp Washing machine
JP2015038408A (en) * 2013-08-19 2015-02-26 パナソニック株式会社 Refrigerator

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