CN114739103A - Refrigerator and refrigerator control method - Google Patents

Refrigerator and refrigerator control method Download PDF

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Publication number
CN114739103A
CN114739103A CN202210357279.3A CN202210357279A CN114739103A CN 114739103 A CN114739103 A CN 114739103A CN 202210357279 A CN202210357279 A CN 202210357279A CN 114739103 A CN114739103 A CN 114739103A
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CN
China
Prior art keywords
compressor
limit value
upper limit
preset time
preset
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CN202210357279.3A
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Chinese (zh)
Inventor
杨军
刘洋
孙彬
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Hisense Shandong Refrigerator Co Ltd
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Hisense Shandong Refrigerator Co Ltd
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Priority to CN202210357279.3A priority Critical patent/CN114739103A/en
Publication of CN114739103A publication Critical patent/CN114739103A/en
Pending legal-status Critical Current

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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
    • 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
    • F25D2600/00—Control issues
    • F25D2600/02—Timing
    • 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
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (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 refrigerator and a refrigerator control method, wherein the refrigerator comprises a compressor, a fan, a pressure sensor and a controller, and the controller is used for: judging whether the air pressure difference changes or not after the compressor is started, the fan is started and the air door of the refrigerating chamber is opened; when the air pressure difference changes, judging whether the difference value between the changed air pressure difference and the air pressure difference before the change reaches a preset air pressure upper limit value or not; when the difference value reaches a preset air pressure upper limit value, the rotating speed of the compressor is increased; after the rotating speed of the compressor is increased, whether the starting time of the compressor reaches a preset time upper limit value or not is judged, and the compressor is controlled according to an obtained judgment result. By adopting the technical scheme of the invention, when the load of the refrigerator is increased, the compressor is controlled to timely respond to the large cooling capacity requirement caused by the increase of the load of the refrigerator, and the phenomenon of long-time non-stop caused by the increase of the load is solved.

Description

Refrigerator and refrigerator control method
Technical Field
The invention relates to the technical field of refrigerator control, in particular to a refrigerator and a refrigerator control method.
Background
The existing air-cooled frequency conversion refrigerator generally uses a temperature sensing probe to detect the temperature of a refrigerating chamber and a freezing chamber of the refrigerator, and controls the start and stop of a compressor of the refrigerator based on the actual temperature of each chamber of the refrigerator detected by the temperature sensing probe so as to realize the control of the temperature of each chamber of the refrigerator. For example, when the indoor temperature (or the ambient temperature) of the refrigerator is higher than the actual temperature of each compartment of the refrigerator detected by the temperature sensing probe, the compressor is controlled to start, and when the indoor temperature (or the ambient temperature) is lower than the actual temperature of each compartment of the refrigerator detected by the temperature sensing probe, the compressor is controlled to stop, so that the circulation is performed, and the temperature of each compartment of the refrigerator is within the limit value.
As the requirement for freshness of food increases, it is desirable that the load can be cooled or frozen quickly after being placed in the refrigerator, and in the above process of controlling the temperature of each compartment of the refrigerator, the operating frequency of the compressor is also controlled according to the temperature, and generally, at a specific indoor temperature (or ambient temperature), the operating frequency of the compressor is fixed, so that it is impossible to respond to a large cooling demand caused by an increase in load of the refrigerator, and it is impossible to solve a long-term non-stop phenomenon caused by an increase in load.
Disclosure of Invention
The embodiment of the invention aims to provide a refrigerator and a refrigerator control method, which can respond to a large cooling capacity requirement caused by the increase of the load of the refrigerator in time by controlling a compressor when the load of the refrigerator is increased, and a judgment mechanism of the starting time of the compressor is arranged, so that the phenomenon of long-time non-stop caused by the increase of the load is correspondingly solved.
In order to achieve the above object, an embodiment of the present invention provides a refrigerator, including:
a refrigeration system comprising a compressor and a fan;
the pressure sensor is used for detecting the air pressure difference between an air supply outlet and an air return inlet of a refrigerating chamber or/and a freezing chamber of the refrigerator;
a controller to:
judging whether the air pressure difference changes or not after the compressor is started, the fan is started and the air door of the refrigerating chamber is opened;
when the air pressure difference changes, judging whether the difference value between the changed air pressure difference and the air pressure difference before the change reaches a preset air pressure upper limit value or not;
when the difference value reaches a preset air pressure upper limit value, the rotating speed of the compressor is increased;
after the rotating speed of the compressor is increased, whether the starting time of the compressor reaches a preset time upper limit value or not is judged, and the compressor is controlled according to an obtained judgment result.
Further, the controller controls the compressor according to the obtained judgment result, specifically including:
when the starting time of the compressor does not reach the preset time upper limit value, reducing the working frequency of the compressor;
after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches a preset time upper limit value or not is detected in the next operation period of the compressor;
and if the starting time of the compressor does not reach the upper limit value of the preset time, continuously reducing the working frequency of the compressor until the starting time of the compressor is judged to reach the upper limit value of the preset time, and controlling the compressor to stop.
Further, the controller continues to reduce the operating frequency of the compressor until the starting time of the compressor is judged to reach the preset time upper limit value, and the controller controls the compressor to stop, specifically including:
continuously reducing the working frequency of the compressor, and judging whether the reduced working frequency reaches a preset frequency lower limit value;
if the working frequency of the compressor is not lower than the preset frequency lower limit value, after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches the preset time upper limit value or not is detected in the next operation period of the compressor, and the compressor is controlled to stop until the starting time of the compressor is judged to reach the preset time upper limit value.
Further, the controller increases the rotation speed of the compressor, specifically: increasing the rotating speed of the compressor according to a preset rotating speed threshold value;
the controller reduces the working frequency of the compressor, specifically: and reducing the working frequency of the compressor according to a preset frequency threshold value.
Further, the controller, after controlling the compressor to stop, is further configured to:
increasing the rotating speed of the fan;
after the rotating speed of the fan is increased, whether the starting time of the compressor reaches a preset time upper limit value or not is detected in the next operation period of the compressor;
if the rotation speed of the fan does not reach the upper limit value of the preset time, reducing the rotation speed of the fan, detecting whether the starting time of the compressor reaches the upper limit value of the preset time in the next operation period of the compressor after the rotation speed of the fan is reduced, and controlling the compressor according to the obtained judgment result;
and if the preset time upper limit value is reached, controlling the compressor to stop.
Further, the controller controls the compressor according to the obtained determination result, specifically including:
when the starting time of the compressor does not reach the preset time upper limit value, reducing the working frequency of the compressor;
after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches a preset time upper limit value or not is detected in the next operation period of the compressor;
if the working frequency of the compressor does not reach the preset time upper limit value, continuously reducing the working frequency of the compressor until the starting time of the compressor is judged to reach the preset time upper limit value, and controlling the compressor to stop;
and if the preset time upper limit value is reached, controlling the compressor to stop.
In order to achieve the above object, an embodiment of the present invention further provides a refrigerator control method, which is applied to the refrigerator described in any one of the above, and the method is executed by the controller, and the method includes:
judging whether the air pressure difference changes or not after the compressor is started, the fan is started and the air door of the refrigerating chamber is opened;
when the air pressure difference changes, judging whether the difference value between the changed air pressure difference and the air pressure difference before the change reaches a preset air pressure upper limit value or not;
when the difference value reaches a preset air pressure upper limit value, the rotating speed of the compressor is increased;
after the rotating speed of the compressor is increased, whether the starting time of the compressor reaches a preset time upper limit value or not is judged, and the compressor is controlled according to an obtained judgment result.
Further, the controlling the compressor according to the obtained determination result specifically includes:
when the starting time of the compressor does not reach the preset time upper limit value, reducing the working frequency of the compressor;
after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches a preset time upper limit value or not is detected in the next operation period of the compressor;
and if the starting time of the compressor does not reach the upper limit value of the preset time, continuously reducing the working frequency of the compressor until the starting time of the compressor is judged to reach the upper limit value of the preset time, and controlling the compressor to stop.
Further, the continuously reducing the operating frequency of the compressor until the starting time of the compressor is judged to reach the preset time upper limit value, and controlling the compressor to stop the compressor specifically includes:
continuously reducing the working frequency of the compressor, and judging whether the reduced working frequency reaches a preset frequency lower limit value;
if the working frequency of the compressor is not lower than the preset frequency lower limit value, after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches the preset time upper limit value or not is detected in the next operation period of the compressor, and the compressor is controlled to stop until the starting time of the compressor is judged to reach the preset time upper limit value.
Further, after the controlling the compressor to stop, the method further includes:
increasing the rotating speed of the fan;
after the rotating speed of the fan is increased, whether the starting time of the compressor reaches a preset time upper limit value or not is detected in the next operation period of the compressor;
if the rotation speed of the fan does not reach the preset time upper limit value, reducing the rotation speed of the fan, detecting whether the starting time of the compressor reaches the preset time upper limit value or not in the next operation period of the compressor after the rotation speed of the fan is reduced, and controlling the compressor according to the obtained judgment result;
and if the preset time upper limit value is reached, controlling the compressor to stop.
Compared with the prior art, the refrigerator and the refrigerator control method provided by the embodiment of the invention comprise a refrigeration system, wherein the refrigeration system comprises a compressor and a fan; the refrigerator also comprises a pressure sensor for detecting the air pressure difference between an air supply outlet and an air return inlet of the refrigerating chamber or/and the freezing chamber; the refrigerator also comprises a controller, and the controller is used for judging whether the air pressure difference changes after the compressor is started, the fan is started and the air door of the refrigerating chamber is opened; when the air pressure difference changes, judging whether the difference value between the changed air pressure difference and the air pressure difference before the change reaches a preset air pressure upper limit value or not; when the difference value reaches a preset air pressure upper limit value, the rotating speed of the compressor is increased; after the rotating speed of the compressor is increased, judging whether the starting time of the compressor reaches a preset time upper limit value or not, and controlling the compressor according to an obtained judgment result; therefore, when the load of the refrigerator is increased, the compressor is controlled to timely respond to the large cooling capacity requirement caused by the increased load of the refrigerator, and a judgment mechanism of the starting time of the compressor is arranged, so that the phenomenon that the refrigerator is not stopped for a long time caused by the increased load is correspondingly solved.
Drawings
Fig. 1 is a schematic view of an outer case of a refrigerator according to an embodiment of the present invention;
fig. 2 is a schematic view of an internal structure of a refrigerator according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating an operation of a controller of a refrigerator according to an embodiment of the present invention;
fig. 4 is an exemplary operational flowchart of a controller of a refrigerator according to an embodiment of the present invention;
fig. 5 is another operation flowchart of a controller of a refrigerator according to an embodiment of the present invention;
fig. 6 is another exemplary operational flowchart of a controller of a refrigerator according to an embodiment of the present invention;
fig. 7 is a further flowchart illustrating a controller of a refrigerator according to an embodiment of the present invention;
fig. 8 is a further flowchart illustrating a further operation of a controller of a refrigerator according to an embodiment of the present invention;
fig. 9 is a flowchart illustrating still another example of a controller of a refrigerator according to an embodiment of the present invention;
fig. 10 is a flowchart illustrating a refrigerator control method according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described 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 of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and fig. 2, in which fig. 1 is a schematic diagram of an outer shell of a refrigerator according to an embodiment of the present invention, and fig. 2 is a schematic diagram of an internal structure of the refrigerator according to the embodiment of the present invention. The refrigerator 100 includes a refrigeration system including a compressor 10 and a fan 20; the compressor 10 is configured to compress a refrigerant in a refrigeration cycle of the refrigerator 100 to provide power for the refrigeration cycle; the fan 20 is used for conveying cold air generated by the evaporator of the refrigerator 100 to a corresponding compartment; the compartments of the refrigerator 100 include a refrigerating compartment and a freezing compartment, and the freezing compartment includes an evaporator, a freezing fan, and a damper leading to the refrigerating compartment.
In addition, the refrigerator 100 further includes a pressure sensor for detecting a pressure difference between an air supply outlet and an air return inlet of a refrigerating chamber of the refrigerator 100 in real time, or/and detecting a pressure difference between an air supply outlet and an air return inlet of a freezing chamber of the refrigerator 100 in real time.
It should be noted that if only the air pressure difference between the air supply outlet and the air return inlet of the refrigerating chamber of the refrigerator 100 needs to be detected, the pressure sensor is arranged at the air supply outlet and the air return inlet of the refrigerating chamber; if only the air pressure difference between the air supply outlet and the air return inlet of the freezing chamber of the refrigerator 100 needs to be detected, the pressure sensors are arranged at the air supply outlet and the air return inlet of the freezing chamber; if it is necessary to detect the air pressure difference between the air supply outlet and the return air inlet of the refrigerating chamber of the refrigerator 100 and the air pressure difference between the air supply outlet and the return air inlet of the freezing chamber of the refrigerator 100, a pressure sensor is provided at the air supply outlet and the return air inlet of the refrigerating chamber, and a pressure sensor is provided at the air supply outlet and the return air inlet of the freezing chamber as a supplement.
As shown in fig. 2, the refrigerator 100 further includes a controller 30, and the controller 30 is configured to perform corresponding control on the refrigerator 100 by using the technical solution provided by the embodiment of the present invention; in particular implementation, the controller 30 is configured to:
after the compressor is started, the fan is started and the air door of the refrigerating chamber is opened, judging whether the air pressure difference changes or not;
when the air pressure difference changes, judging whether the difference value between the changed air pressure difference and the air pressure difference before the change reaches a preset air pressure upper limit value or not;
when the difference value reaches a preset air pressure upper limit value, the rotating speed of the compressor is increased;
after the rotating speed of the compressor is increased, whether the starting time of the compressor reaches a preset time upper limit value or not is judged, and the compressor is controlled according to an obtained judgment result.
Referring to fig. 3, it is a flowchart of a controller of a refrigerator according to an embodiment of the present invention, and the specific operation process of the controller is as follows: after a compressor of the refrigerator is started, a fan is started, and an air door of a refrigerating chamber is opened (step S11 shown in FIG. 3), detecting the air pressure difference between an air supply outlet and an air return inlet of the refrigerating chamber of the refrigerator in real time through a pressure sensor, or/and detecting the air pressure difference between an air supply outlet and an air return inlet of a freezing chamber of the refrigerator in real time, and after a detection result of the air pressure difference is obtained, judging whether the air pressure difference obtained by current detection is changed compared with the air pressure difference obtained by last detection (step S12 shown in FIG. 3); when it is determined that the detected air pressure difference changes, further determining whether a difference between the changed air pressure difference and the air pressure difference before the change reaches a preset air pressure upper limit value (step S13 shown in fig. 3); if the difference between the changed air pressure difference and the air pressure difference before the change is determined to reach the preset air pressure upper limit value, the rotation speed of the compressor is increased (step S14 shown in fig. 3), and after the rotation speed of the compressor is increased, whether the starting time of the compressor reaches the preset time upper limit value is further determined, so that the compressor is correspondingly controlled according to the obtained time determination result (step S15 shown in fig. 3).
It can be understood that if the air pressure difference between the air supply outlet and the air return inlet of the refrigerating chamber is detected, whether the air pressure difference obtained by the current detection of the refrigerating chamber is changed compared with the air pressure difference obtained by the last detection is correspondingly judged subsequently; if the air pressure difference between the air supply outlet and the air return inlet of the freezing chamber is detected, subsequently, correspondingly judging whether the air pressure difference obtained by the current detection of the freezing chamber is changed compared with the air pressure difference obtained by the last detection; if the air pressure difference between the air supply outlet and the air return opening of the refrigerating chamber and the air pressure difference between the air supply outlet and the air return opening of the freezing chamber are detected, subsequently, whether the air pressure difference obtained by the current detection of the refrigerating chamber is changed compared with the air pressure difference obtained by the last detection is judged, and whether the air pressure difference obtained by the current detection of the freezing chamber is changed compared with the air pressure difference obtained by the last detection is judged; and in the actual determination process, as long as it is determined that the air pressure difference of any one chamber changes, step S13 and the subsequent processing flow shown in fig. 3 are executed accordingly.
It should be noted that, when the load of the refrigerator increases, the air pressure difference between the air supply outlet and the air return inlet of the refrigerating chamber of the refrigerator or/and the air pressure difference between the air supply outlet and the air return inlet of the freezing chamber of the refrigerator are/is affected, so that the air pressure difference changes, therefore, after the step S12 shown in fig. 3 is executed, if it is determined that the detected air pressure difference does not change, the rotation speed of the compressor does not need to be increased, the compressor is kept to continue to operate at the current rotation speed, and then corresponding processing is performed according to the startup time of the compressor, that is, the step S15 shown in fig. 3 is executed.
Furthermore, in order to avoid frequently adjusting the rotation speed of the compressor and considering the problems of air pressure value detection precision and the like, after the detected air pressure difference is determined to be changed, if the difference between the changed air pressure difference and the air pressure difference before the change is not large, that is, the variation is small, and the adjustment of the rotation speed of the compressor is not proper, so that a preset upper limit value of the air pressure can be preset, the rotation speed of the compressor can be increased only when the difference value between the air pressure difference after the variation and the air pressure difference before the variation reaches the preset upper limit value of the air pressure, that is, step S14 in fig. 3 is performed, if the difference between the air pressure difference after the change and the air pressure difference before the change does not reach the preset air pressure upper limit value, the rotation speed of the compressor does not need to be increased, the compressor is kept to continue to operate at the current rotation speed, and corresponding processing is subsequently performed according to the startup time of the compressor, that is, step S15 shown in fig. 3 is executed.
For example, the preset upper limit of the air pressure may be 2Pa, and accordingly, if it is determined that the difference between the air pressure after the change and the air pressure before the change is more than 2Pa, the rotation speed of the compressor is increased, and if it is determined that the difference between the air pressure after the change and the air pressure before the change is less than 2Pa, the rotation speed of the compressor is not required to be increased. In addition, the preset upper limit of the air pressure may also be set according to actual needs, and the embodiment of the present invention is not particularly limited.
For example, the preset upper time limit may be 5 hours, which is usually the protection time of the compressor, and accordingly, if the starting time of the compressor is below 5 hours, the operation is continued without special conditions, and if the starting time of the compressor is above 5 hours, the compressor is forced to stop. In addition, the preset upper time limit value may also be set according to actual needs, and the embodiment of the present invention is not particularly limited.
Referring to fig. 4, which is an exemplary working flow chart of a controller of a refrigerator according to an embodiment of the present invention, in an actual working process, after a compressor is started and a blower is started, the blower is operated at an initial rotation speed v0, the compressor is operated at an initial rotation speed u0, after an air door of a refrigerating chamber is opened, an air pressure difference between an air supply outlet and an air return inlet of the refrigerating chamber of the refrigerator is detected in real time through a pressure sensor, an air pressure difference between an air supply outlet and an air return inlet of a freezing chamber of the refrigerator is detected in real time, and after a detection result of the air pressure difference is obtained, whether the air pressure difference obtained by current detection is changed compared with the air pressure difference obtained by previous detection is respectively determined for each chamber; if the air pressure difference corresponding to each chamber is not changed, the compressor is kept to continuously operate at the initial rotating speed u0, whether the starting time of the compressor reaches the preset time upper limit value or not is judged, and the compressor is correspondingly controlled according to the obtained time judgment result; once the detected air pressure difference is judged to be changed, whether the difference value between the changed air pressure difference and the air pressure difference before the change reaches a preset air pressure upper limit value (for example, 2Pa) is further judged; if not (for example, the initial rotation speed u0 is not reached), the compressor is kept to continue to operate at the initial rotation speed u0, whether the starting time of the compressor reaches the preset time upper limit value is judged, and the compressor is correspondingly controlled according to the obtained time judgment result; if so (for example, 2Pa is reached, even more than 2Pa), increasing the rotation speed of the compressor, operating the compressor at a high rotation speed u1, and further determining whether the starting time of the compressor reaches the preset time upper limit value after increasing the rotation speed of the compressor, so as to correspondingly control the compressor according to the obtained time determination result.
The embodiment of the invention provides a refrigerator, which comprises a refrigerating system, a refrigerating system and a control system, wherein the refrigerating system comprises a compressor and a fan; the refrigerator also comprises a pressure sensor for detecting the air pressure difference between an air supply outlet and an air return inlet of the refrigerating chamber or/and the freezing chamber; the refrigerator also comprises a controller, and the controller is used for judging whether the air pressure difference changes after the compressor is started, the fan is started and the air door of the refrigerating chamber is opened; when the air pressure difference changes, judging whether the difference value between the changed air pressure difference and the air pressure difference before the change reaches a preset air pressure upper limit value or not; when the difference value reaches a preset air pressure upper limit value, the rotating speed of the compressor is increased; after the rotating speed of the compressor is increased, judging whether the starting time of the compressor reaches a preset time upper limit value or not, and controlling the compressor according to an obtained judgment result; therefore, when the load of the refrigerator is increased, the compressor is controlled to timely respond to the large cooling capacity requirement caused by the increased load of the refrigerator, and a judgment mechanism of the starting time of the compressor is arranged, so that the phenomenon that the refrigerator is not stopped for a long time caused by the increased load is correspondingly solved.
It can be understood that, by the embodiment of the invention, when the load of the refrigerator is increased, the rotating speed of the compressor can be adjusted by integrating the heat load condition, the air pressure difference and the starting time of the compressor, so that the temperature can be quickly raised when the load is large, the compressor can operate at a low rotating speed when the load is small, the load change is monitored in real time, a corresponding control strategy is executed, and the refrigerating and noise requirements are met.
As an improvement of the above solution, the controller controls the compressor according to the obtained determination result, and specifically includes:
when the starting time of the compressor does not reach a preset time upper limit value, reducing the working frequency of the compressor;
after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches a preset time upper limit value or not is detected in the next operation period of the compressor;
and if the starting time of the compressor does not reach the upper limit value of the preset time, continuously reducing the working frequency of the compressor until the starting time of the compressor is judged to reach the upper limit value of the preset time, and controlling the compressor to stop.
Referring to fig. 5, it is another flowchart of the operation of the controller of the refrigerator according to the embodiment of the present invention, on the basis of the above embodiment, when the controller executes step S15 shown in fig. 3, after determining whether the starting time of the compressor reaches the preset upper limit time value, if it is determined that the on-time of the compressor has not reached the preset time upper limit value, the operating frequency of the compressor is decreased (step S151 shown in fig. 5), and after decreasing the operating frequency of the compressor, in the next operation cycle of the compressor, it is detected whether the starting time of the compressor reaches the preset time upper limit value (step S152 shown in fig. 5), if the detection result does not reach the preset time upper limit value, continuing to reduce the operating frequency of the compressor (returning to step S151 shown in fig. 5), and so on until the starting time of the compressor is determined to reach the preset time upper limit value; and if the starting time of the compressor is judged to reach the preset time upper limit value, controlling the compressor to stop (step S153 shown in figure 5).
Referring to fig. 6, it is another exemplary work flow chart of the controller of the refrigerator according to the embodiment of the present invention, in the actual work process:
after the compressor is started and the fan is started, the fan runs at an initial rotating speed v0, the compressor runs at an initial rotating speed u0, after an air door of a refrigerating chamber is opened, the air pressure difference between an air supply opening and an air return opening of the refrigerating chamber of the refrigerator is detected in real time through a pressure sensor, the air pressure difference between an air supply opening and an air return opening of a freezing chamber of the refrigerator is detected in real time, and after a detection result of the air pressure difference is obtained, whether the air pressure difference obtained by current detection is changed or not compared with the air pressure difference obtained by last detection is judged for each chamber.
If the corresponding air pressure difference of each chamber does not change, the compressor is kept to continuously operate at the initial rotating speed u0, whether the starting time of the compressor reaches the preset time upper limit value (for example, 5 hours) or not is judged, if the starting time of the compressor does not reach the preset time upper limit value (for example, within 5 hours) or not, the working frequency of the compressor is reduced by one gear, and after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches the preset time upper limit value (for example, 5 hours) or not is detected in the next operation period of the compressor, if the detection result does not reach the preset time upper limit value, the working frequency of the compressor is continuously reduced by one gear, and so on, until the starting time of the compressor is judged to reach the preset time upper limit value (for example, 5 hours); and if the starting time of the compressor is judged to reach the upper limit value of the preset time, forcibly controlling the compressor to stop.
Once it is determined that the detected air pressure difference changes, it is further determined whether a difference between the changed air pressure difference and the air pressure difference before the change reaches a preset air pressure upper limit value (e.g., 2 Pa).
If not (for example, the initial rotation speed u0 of the compressor is kept to continue to operate, whether the starting time of the compressor reaches the preset time upper limit value is judged, if the starting time of the compressor does not reach the preset time upper limit value (for example, within 5 hours) is judged, the working frequency of the compressor is reduced by one gear, after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches the preset time upper limit value (for example, 5 hours) is detected in the next operation period of the compressor, if the detection result is that the starting time of the compressor does not reach the preset time upper limit value, the working frequency of the compressor is continuously reduced by one gear, and the like, until the starting time of the compressor is judged to reach the preset time upper limit value (for example, 5 hours); and if the starting time of the compressor is judged to reach the upper limit value of the preset time, forcibly controlling the compressor to stop.
If the rotation speed of the compressor is increased (for example, 2Pa or more), the rotation speed of the compressor is increased, the compressor is operated at a high rotation speed u1, and after the rotation speed of the compressor is increased, whether the starting time of the compressor reaches the upper limit value of the preset time is further judged, if it is determined that the starting time of the compressor does not reach the preset time upper limit value (e.g., within 5 hours), the operating frequency of the compressor is reduced by one step, and after the operating frequency of the compressor is reduced, in the next operation cycle of the compressor, detecting whether the starting time of the compressor reaches the preset time upper limit value (for example, 5 hours), if the detection result does not reach the preset time upper limit value, continuously reducing the working frequency of the compressor by one gear, and so on until the starting time of the compressor is judged to reach the upper limit value of the preset time (for example, 5 hours); and if the starting time of the compressor is judged to reach the upper limit value of the preset time, forcibly controlling the compressor to stop.
For example, the operating frequency of the compressor may be 10Hz for first gear, or 300 rpm for first gear, or may be set according to actual needs, and the embodiment of the present invention is not particularly limited.
As an improvement of the above scheme, the controller continues to reduce the operating frequency of the compressor until it is determined that the starting time of the compressor reaches the preset time upper limit value, and controls the compressor to stop, specifically including:
continuously reducing the working frequency of the compressor, and judging whether the reduced working frequency reaches a preset frequency lower limit value;
if the working frequency of the compressor is not lower than the preset frequency lower limit value, after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches the preset time upper limit value or not is detected in the next operation period of the compressor, and the compressor is controlled to stop until the starting time of the compressor is judged to reach the preset time upper limit value.
Specifically, in combination with the above embodiment, when the cyclic working process corresponding to step S151 and step S152 shown in fig. 5 is executed, in each cycle, the controller needs to reduce the working frequency of the compressor, and it can be understood that the working frequency of the compressor is not reduced without limitation, and a preset frequency lower limit value is generally set as the minimum working frequency to ensure that the working frequency of the compressor is not reduced below the minimum working frequency; on the basis, after the working frequency of the compressor is continuously reduced, the controller can further judge whether the reduced working frequency reaches a preset frequency lower limit value; if the reduced working frequency does not reach the lower limit value of the preset frequency, detecting whether the starting time of the compressor reaches the upper limit value of the preset time or not in the next operation period of the compressor after the working frequency of the compressor is reduced, if the detection result is that the working frequency does not reach the upper limit value of the preset time, continuing to reduce the working frequency of the compressor, judging whether the reduced working frequency reaches the lower limit value of the preset frequency or not, and so on until the starting time of the compressor is judged to reach the upper limit value of the preset time; and if the starting time of the compressor is judged to reach the preset time upper limit value, controlling the compressor to stop.
It should be noted that, if it is determined that the reduced operating frequency reaches the preset frequency lower limit, the operating frequency of the compressor is not reduced continuously, and the compressor can be kept running at the minimum operating frequency, and the compressor is controlled to stop until the startup time of the compressor reaches the preset time upper limit.
For example, the lower limit of the preset frequency may be 40Hz, and accordingly, after each time the operating frequency of the compressor is decreased, if the decreased operating frequency is determined to be above the lower limit of the preset frequency of 40Hz, the operating frequency of the compressor may be continuously decreased in the next cycle, and if the decreased operating frequency is determined to be below the lower limit of the preset frequency of 40Hz, the operating frequency of the compressor is not continuously decreased, and the compressor is kept to continue to operate at the minimum operating frequency of 40 Hz. In addition, the preset lower frequency limit value may also be set according to actual needs, and the embodiment of the present invention is not particularly limited.
As an improvement of the above scheme, the controller increases the rotation speed of the compressor, specifically: increasing the rotating speed of the compressor according to a preset rotating speed threshold value;
the controller reduces the working frequency of the compressor, and specifically comprises: and reducing the working frequency of the compressor according to a preset frequency threshold value.
Specifically, with reference to the foregoing embodiment, when the controller increases the rotation speed of the compressor, the rotation speed of the compressor may be increased according to a preset rotation speed threshold, and when the controller decreases the operating frequency of the compressor, the operating frequency of the compressor may be decreased according to a preset frequency threshold; wherein the rotational speed of the compressor may be varied as a function of the compressor frequency.
For example, the predetermined frequency threshold may be 10Hz, and accordingly, the operating frequency of the compressor is decreased by 10Hz each time. In addition, the preset frequency threshold may also be set according to actual needs, and the embodiment of the present invention is not particularly limited.
As an improvement of the above, after controlling the compressor to stop, the controller is further configured to:
increasing the rotating speed of the fan;
after the rotating speed of the fan is increased, whether the starting time of the compressor reaches a preset time upper limit value or not is detected in the next operation period of the compressor;
if the rotation speed of the fan does not reach the preset time upper limit value, reducing the rotation speed of the fan, detecting whether the starting time of the compressor reaches the preset time upper limit value or not in the next operation period of the compressor after the rotation speed of the fan is reduced, and controlling the compressor according to the obtained judgment result;
and if the preset time upper limit value is reached, controlling the compressor to stop.
Referring to fig. 7, it is a further flowchart of the operation of the controller of the refrigerator according to the embodiment of the present invention, in the above embodiment, after the controller executes step S153 shown in fig. 5, the controller controls to increase the rotation speed of the fan (step S154 shown in fig. 7), and after the rotation speed of the fan is increased, in a next operation cycle of the compressor, it detects whether the starting time of the compressor reaches the preset time upper limit value (step S155 shown in fig. 7); if the detection result is that the preset time upper limit value is not reached, reducing the rotation speed of the fan (step S156 shown in fig. 7), and further detecting whether the starting time of the compressor reaches the preset time upper limit value in the next operation cycle of the compressor after the rotation speed of the fan is reduced, so as to correspondingly control the compressor according to the obtained time judgment result (step S157 shown in fig. 7); if the detection result is that the preset time upper limit value is reached, the compressor is controlled to stop (step S1538 shown in the figure).
It should be noted that, when the controller increases the rotation speed of the fan and decreases the rotation speed of the fan, corresponding increase and decrease processing can be performed according to a preset rotation speed threshold; it can be understood that the rotation speed of the fan cannot be reduced unlimitedly, half of the rotation speed is limited by the minimum rotation speed, before the rotation speed is reduced to the minimum rotation speed, the magnitude of increasing and reducing the rotation speed of the fan each time is a preset rotation speed threshold, and the preset rotation speed threshold can be set according to actual needs, and the embodiment of the invention is not particularly limited.
For example, the rotational speed of the fan in a refrigerator generally has fixed values, typically including 1200 rpm, 1800 rpm, 2100 rpm, etc.
As an improvement of the above scheme, the controlling the compressor by the controller according to the obtained judgment result specifically includes:
when the starting time of the compressor does not reach the preset time upper limit value, reducing the working frequency of the compressor;
after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches a preset time upper limit value or not is detected in the next operation period of the compressor;
if the starting time of the compressor reaches the preset time upper limit value, the working frequency of the compressor is continuously reduced, and the compressor is controlled to stop until the starting time of the compressor reaches the preset time upper limit value;
and if the preset time upper limit value is reached, controlling the compressor to stop.
Referring to fig. 8, it is a flowchart of another operation of a controller of a refrigerator according to an embodiment of the present invention, on the basis of the above embodiment, after the controller determines whether the on-time of the compressor reaches the preset time upper limit value when executing step S157 shown in fig. 7, if it is determined that the starting-up time of the compressor does not reach the preset upper time limit value, the operating frequency of the compressor is decreased (step S1571 shown in fig. 8), and after the operating frequency of the compressor is decreased, in the next operation cycle of the compressor, it is detected whether the starting time of the compressor reaches the preset time upper limit value (step S1572 shown in fig. 8), if the detection result does not reach the preset time upper limit value, continuing to reduce the operating frequency of the compressor (returning to step S1571 shown in fig. 8), and so on until the starting time of the compressor is determined to reach the upper limit value of the preset time; and if the starting time of the compressor is judged to reach the preset time upper limit value, controlling the compressor to stop (step S1573 shown in FIG. 8).
It should be noted that, when the cyclic working process corresponding to step S1571 and step S1572 shown in fig. 8 is executed, in each cycle, the controller needs to reduce the working frequency of the compressor, and it can be understood that the working frequency of the compressor is not reduced without limitation, and a preset frequency lower limit value is generally set as the minimum working frequency to ensure that the working frequency of the compressor is not reduced below the minimum working frequency; on the basis, after the working frequency of the compressor is continuously reduced, the controller can further judge whether the reduced working frequency reaches a preset frequency lower limit value; if the reduced working frequency does not reach the preset frequency lower limit value, detecting whether the starting time of the compressor reaches the preset time upper limit value or not in the next operation period of the compressor after the working frequency of the compressor is reduced, if the detection result does not reach the preset time upper limit value, continuing to reduce the working frequency of the compressor, judging whether the reduced working frequency reaches the preset frequency lower limit value or not, and so on until the starting time of the compressor is judged to reach the preset time upper limit value; and if the starting time of the compressor is judged to reach the preset time upper limit value, controlling the compressor to stop.
It can be understood that if it is determined that the reduced operating frequency reaches the preset frequency lower limit value, the operating frequency of the compressor is not reduced continuously, the compressor can be kept running at the minimum operating frequency continuously, and the compressor is controlled to stop until the starting time of the compressor reaches the preset time upper limit value.
Referring to fig. 9, it is a still another exemplary work flow chart of a controller of a refrigerator according to an embodiment of the present invention, and the work process of the control is specifically as follows:
step S21, after the compressor is started and the fan is started, the fan runs at an initial rotating speed v0, and the compressor runs at an initial rotating speed u 0;
step S22, after the air door of the refrigerating chamber is opened, detecting the air pressure difference between the air supply outlet and the air return inlet of the refrigerating chamber of the refrigerator in real time through a pressure sensor, and detecting the air pressure difference between the air supply outlet and the air return inlet of the freezing chamber of the refrigerator in real time;
step S23, after the detection result of the air pressure difference is obtained, respectively judging whether the air pressure difference obtained by the current detection is changed compared with the air pressure difference obtained by the last detection aiming at each chamber;
step S24, if the air pressure difference corresponding to each chamber is not changed, the compressor is kept to continue to operate at the initial rotating speed u0, and the step S28 is skipped;
step S25, once the detected air pressure difference is judged to change, whether the difference value between the changed air pressure difference and the air pressure difference before the change reaches the preset air pressure upper limit value is further judged;
step S26, if not, the compressor is kept running at the initial speed u0, and the process goes to step S28;
step S27, if yes, the rotating speed of the compressor is increased, and the compressor operates at a high rotating speed u 1;
step S28, after the rotating speed of the compressor is increased, whether the starting time of the compressor reaches the upper limit value of the preset time is further judged;
step S29, if the starting time of the compressor is judged not to reach the upper limit value of the preset time, the working frequency of the compressor is reduced by one gear;
step S30, after the working frequency of the compressor is reduced, in the next running period of the compressor, detecting whether the starting time of the compressor reaches the preset time upper limit value, if the detection result does not reach the preset time upper limit value, jumping to step S29;
step S31, if the starting time of the compressor is judged to reach the upper limit value of the preset time, the compressor is forcibly controlled to stop;
step S32, after the compressor is forcibly controlled to stop, increasing the rotating speed of the fan to v 1;
step S33, after the rotating speed of the fan is increased, in the next operation period of the compressor, whether the starting time of the compressor reaches the upper limit value of the preset time is detected;
step S34, if the detection result is that the preset time upper limit value is not reached, reducing the rotating speed of the fan to v 0;
step S35, after the rotating speed of the fan is reduced, in the next operation period of the compressor, whether the starting time of the compressor reaches the upper limit value of the preset time is detected;
step S36, if the starting time of the compressor is judged not to reach the upper limit value of the preset time, the working frequency of the compressor is reduced by one gear;
step S37, after the working frequency of the compressor is reduced, in the next running period of the compressor, detecting whether the starting time of the compressor reaches the preset time upper limit value, if the detection result does not reach the preset time upper limit value, jumping to step S36; if the detection result is that the preset time upper limit value is reached, jumping to step S31;
and step S38, if the detection result is that the preset time upper limit value is reached, forcibly controlling the compressor to stop.
An embodiment of the present invention further provides a refrigerator control method, which is applicable to the refrigerator described in any one of the above embodiments, where the method is executed by the controller, as shown in fig. 10, and is a schematic flow diagram of the refrigerator control method provided in the embodiment of the present invention, where the method includes steps S101 to S104:
step S101, judging whether the air pressure difference changes after the compressor is started, the fan is started and the air door of the refrigerating chamber is opened;
step S102, when the air pressure difference changes, judging whether the difference value between the changed air pressure difference and the air pressure difference before the change reaches a preset air pressure upper limit value or not;
step S103, when the difference value reaches a preset air pressure upper limit value, increasing the rotating speed of the compressor;
and step S104, after the rotating speed of the compressor is increased, judging whether the starting time of the compressor reaches a preset time upper limit value, and controlling the compressor according to an obtained judgment result.
In some embodiments, the controlling the compressor according to the obtained determination result specifically includes:
when the starting time of the compressor does not reach the preset time upper limit value, reducing the working frequency of the compressor;
after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches a preset time upper limit value or not is detected in the next operation period of the compressor;
and if the starting time of the compressor does not reach the upper limit value of the preset time, continuously reducing the working frequency of the compressor until the starting time of the compressor is judged to reach the upper limit value of the preset time, and controlling the compressor to stop.
In some embodiments, the continuously reducing the operating frequency of the compressor until it is determined that the starting time of the compressor reaches the preset time upper limit value, and controlling the compressor to stop includes:
continuously reducing the working frequency of the compressor, and judging whether the reduced working frequency reaches a preset frequency lower limit value;
if the working frequency of the compressor is not lower than the preset frequency lower limit value, after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches the preset time upper limit value or not is detected in the next operation period of the compressor, and the compressor is controlled to stop until the starting time of the compressor is judged to reach the preset time upper limit value.
In some embodiments, the increasing the rotation speed of the compressor is specifically: increasing the rotating speed of the compressor according to a preset rotating speed threshold value;
the reducing the working frequency of the compressor specifically comprises: and reducing the working frequency of the compressor according to a preset frequency threshold value.
In some embodiments, after said controlling said compressor to shut down, said method further comprises:
increasing the rotating speed of the fan;
after the rotating speed of the fan is increased, whether the starting time of the compressor reaches a preset time upper limit value or not is detected in the next operation period of the compressor;
if the rotation speed of the fan does not reach the upper limit value of the preset time, reducing the rotation speed of the fan, detecting whether the starting time of the compressor reaches the upper limit value of the preset time in the next operation period of the compressor after the rotation speed of the fan is reduced, and controlling the compressor according to the obtained judgment result;
and if the preset time upper limit value is reached, controlling the compressor to stop.
In some embodiments, the controlling the compressor according to the obtained determination result specifically includes:
when the starting time of the compressor does not reach the preset time upper limit value, reducing the working frequency of the compressor;
after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches a preset time upper limit value or not is detected in the next operation period of the compressor;
if the starting time of the compressor reaches the preset time upper limit value, the working frequency of the compressor is continuously reduced, and the compressor is controlled to stop until the starting time of the compressor reaches the preset time upper limit value;
and if the preset time upper limit value is reached, controlling the compressor to stop.
It should be noted that, with the refrigerator control method provided in the embodiment of the present invention, all the work flows of the refrigerator described in any one of the above embodiments can be implemented, and the specific implementation and the implemented technical effects of the method are respectively the same as those of the refrigerator described in the above embodiment, and are not described herein again.
In summary, the refrigerator and the refrigerator control method provided by the embodiment of the invention include that the refrigerator includes a refrigeration system, the refrigeration system includes a compressor and a fan; the refrigerator also comprises a pressure sensor for detecting the air pressure difference between an air supply outlet and an air return inlet of the refrigerating chamber or/and the freezing chamber; the refrigerator also comprises a controller, and the controller is used for judging whether the air pressure difference changes after the compressor is started, the fan is started and the air door of the refrigerating chamber is opened; when the air pressure difference changes, judging whether the difference value between the changed air pressure difference and the air pressure difference before the change reaches a preset air pressure upper limit value or not; when the difference value reaches a preset air pressure upper limit value, the rotating speed of the compressor is increased; after the rotating speed of the compressor is increased, judging whether the starting time of the compressor reaches a preset time upper limit value or not, and controlling the compressor according to an obtained judgment result; therefore, when the load of the refrigerator is increased, the compressor is controlled to timely respond to the large cooling capacity requirement caused by the increased load of the refrigerator, and a judgment mechanism of the starting time of the compressor is arranged, so that the phenomenon that the refrigerator is not stopped for a long time caused by the increased load is correspondingly solved. Through the real-time embodiment of the invention, when the load of the refrigerator is increased, the rotating speed of the compressor can be adjusted by integrating the heat load condition, the air pressure difference and the starting time of the compressor, so that the temperature can be quickly raised when the load is large, the compressor can run at a low rotating speed when the load is small, the load change is monitored in real time, a corresponding control strategy is executed, and the refrigerating and noise requirements are met.
The above description is only a few embodiments of the present invention, and it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A refrigerator, characterized in that the refrigerator comprises:
a refrigeration system comprising a compressor and a fan;
the pressure sensor is used for detecting the air pressure difference between an air supply outlet and an air return inlet of a refrigerating chamber or/and a freezing chamber of the refrigerator;
a controller to:
judging whether the air pressure difference changes or not after the compressor is started, the fan is started and the air door of the refrigerating chamber is opened;
when the air pressure difference changes, judging whether the difference value between the changed air pressure difference and the air pressure difference before the change reaches a preset air pressure upper limit value or not;
when the difference value reaches a preset air pressure upper limit value, the rotating speed of the compressor is increased;
after the rotating speed of the compressor is increased, whether the starting time of the compressor reaches a preset time upper limit value or not is judged, and the compressor is controlled according to an obtained judgment result.
2. The refrigerator according to claim 1, wherein the controller controls the compressor according to the obtained determination result, specifically comprising:
when the starting time of the compressor does not reach the preset time upper limit value, reducing the working frequency of the compressor;
after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches a preset time upper limit value or not is detected in the next operation period of the compressor;
and if the starting time of the compressor does not reach the upper limit value of the preset time, continuously reducing the working frequency of the compressor until the starting time of the compressor is judged to reach the upper limit value of the preset time, and controlling the compressor to stop.
3. The refrigerator as claimed in claim 2, wherein the controller continues to decrease the operating frequency of the compressor until the starting time of the compressor is determined to reach the upper limit of the preset time, and the controlling the compressor to stop includes:
continuously reducing the working frequency of the compressor, and judging whether the reduced working frequency reaches a preset frequency lower limit value;
if the working frequency of the compressor is not lower than the preset frequency lower limit value, after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches the preset time upper limit value or not is detected in the next operation period of the compressor, and the compressor is controlled to stop until the starting time of the compressor is judged to reach the preset time upper limit value.
4. The refrigerator of claim 2, wherein the controller increases the rotational speed of the compressor, in particular: increasing the rotating speed of the compressor according to a preset rotating speed threshold value;
the controller reduces the working frequency of the compressor, and specifically comprises: and reducing the working frequency of the compressor according to a preset frequency threshold value.
5. The refrigerator according to any one of claims 2 to 4, wherein the controller, after controlling the compressor to stop, is further configured to:
increasing the rotating speed of the fan;
after the rotating speed of the fan is increased, whether the starting time of the compressor reaches a preset time upper limit value or not is detected in the next operation period of the compressor;
if the rotation speed of the fan does not reach the upper limit value of the preset time, reducing the rotation speed of the fan, detecting whether the starting time of the compressor reaches the upper limit value of the preset time in the next operation period of the compressor after the rotation speed of the fan is reduced, and controlling the compressor according to the obtained judgment result;
and if the preset time upper limit value is reached, controlling the compressor to stop.
6. The refrigerator according to claim 5, wherein the controller controls the compressor according to the obtained determination result, specifically comprising:
when the starting time of the compressor does not reach the preset time upper limit value, reducing the working frequency of the compressor;
after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches a preset time upper limit value or not is detected in the next operation period of the compressor;
if the starting time of the compressor reaches the preset time upper limit value, the working frequency of the compressor is continuously reduced, and the compressor is controlled to stop until the starting time of the compressor reaches the preset time upper limit value;
and if the preset time upper limit value is reached, controlling the compressor to stop.
7. A refrigerator control method, adapted to the refrigerator of any one of claims 1 to 6, the method being performed by the controller, the method comprising:
after the compressor is started, the fan is started and the air door of the refrigerating chamber is opened, judging whether the air pressure difference changes or not;
when the air pressure difference changes, judging whether the difference value between the changed air pressure difference and the air pressure difference before the change reaches a preset air pressure upper limit value or not;
when the difference value reaches a preset air pressure upper limit value, the rotating speed of the compressor is increased;
after the rotating speed of the compressor is increased, whether the starting time of the compressor reaches a preset time upper limit value or not is judged, and the compressor is controlled according to an obtained judgment result.
8. The method for controlling the refrigerator according to claim 7, wherein the controlling the compressor according to the obtained judgment result specifically comprises:
when the starting time of the compressor does not reach a preset time upper limit value, reducing the working frequency of the compressor;
after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches a preset time upper limit value or not is detected in the next operation period of the compressor;
and if the starting time of the compressor does not reach the upper limit value of the preset time, continuously reducing the working frequency of the compressor until the starting time of the compressor is judged to reach the upper limit value of the preset time, and controlling the compressor to stop.
9. The method for controlling a refrigerator according to claim 8, wherein the step of continuing to reduce the operating frequency of the compressor until the startup time of the compressor is determined to reach the preset time upper limit value, comprises the steps of:
continuously reducing the working frequency of the compressor, and judging whether the reduced working frequency reaches a preset frequency lower limit value or not;
if the working frequency of the compressor is not lower than the preset frequency lower limit value, after the working frequency of the compressor is reduced, whether the starting time of the compressor reaches the preset time upper limit value or not is detected in the next operation period of the compressor, and the compressor is controlled to stop until the starting time of the compressor is judged to reach the preset time upper limit value.
10. The refrigerator control method as claimed in claim 8 or 9, wherein after the controlling of the compressor to stop, the method further comprises:
increasing the rotating speed of the fan;
after the rotating speed of the fan is increased, whether the starting time of the compressor reaches a preset time upper limit value or not is detected in the next operation period of the compressor;
if the rotation speed of the fan does not reach the upper limit value of the preset time, reducing the rotation speed of the fan, detecting whether the starting time of the compressor reaches the upper limit value of the preset time in the next operation period of the compressor after the rotation speed of the fan is reduced, and controlling the compressor according to the obtained judgment result;
and if the preset time upper limit value is reached, controlling the compressor to stop.
CN202210357279.3A 2022-04-06 2022-04-06 Refrigerator and refrigerator control method Pending CN114739103A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07146053A (en) * 1993-11-24 1995-06-06 Matsushita Electric Ind Co Ltd Freezer-refrigerator
KR19990004645A (en) * 1997-06-28 1999-01-15 윤종용 Driving control method of refrigerator
KR20010026227A (en) * 1999-09-03 2001-04-06 구자홍 Working method for refrigerator
JP2004069245A (en) * 2002-08-09 2004-03-04 Hitachi Home & Life Solutions Inc Refrigerator
CN105928316A (en) * 2016-04-29 2016-09-07 合肥华凌股份有限公司 Control method and system of inverter compressor, and refrigerator
CN105972928A (en) * 2016-05-26 2016-09-28 合肥美的电冰箱有限公司 Fan rotary speed control method and device used for refrigerator and refrigerator
CN106369930A (en) * 2016-08-25 2017-02-01 合肥美菱股份有限公司 Frequency converting control method of refrigerator
CN106895642A (en) * 2017-02-15 2017-06-27 合肥美的电冰箱有限公司 The refrigeration air-supply amount control method of wind cooling refrigerator and wind cooling refrigerator

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07146053A (en) * 1993-11-24 1995-06-06 Matsushita Electric Ind Co Ltd Freezer-refrigerator
KR19990004645A (en) * 1997-06-28 1999-01-15 윤종용 Driving control method of refrigerator
KR20010026227A (en) * 1999-09-03 2001-04-06 구자홍 Working method for refrigerator
JP2004069245A (en) * 2002-08-09 2004-03-04 Hitachi Home & Life Solutions Inc Refrigerator
CN105928316A (en) * 2016-04-29 2016-09-07 合肥华凌股份有限公司 Control method and system of inverter compressor, and refrigerator
CN105972928A (en) * 2016-05-26 2016-09-28 合肥美的电冰箱有限公司 Fan rotary speed control method and device used for refrigerator and refrigerator
CN106369930A (en) * 2016-08-25 2017-02-01 合肥美菱股份有限公司 Frequency converting control method of refrigerator
CN106895642A (en) * 2017-02-15 2017-06-27 合肥美的电冰箱有限公司 The refrigeration air-supply amount control method of wind cooling refrigerator and wind cooling refrigerator

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