CN109307401B - Refrigerator refrigerating capacity control method and device and refrigerator - Google Patents
Refrigerator refrigerating capacity control method and device and refrigerator Download PDFInfo
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- CN109307401B CN109307401B CN201710630074.7A CN201710630074A CN109307401B CN 109307401 B CN109307401 B CN 109307401B CN 201710630074 A CN201710630074 A CN 201710630074A CN 109307401 B CN109307401 B CN 109307401B
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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
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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
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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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The embodiment of the invention provides a refrigerator refrigerating capacity control method and device and a refrigerator, and belongs to the field of household appliances. The control method comprises the following steps: detecting an ambient temperature outside the refrigerator; when the ambient temperature is lower than a first preset temperature, detecting the temperatures of a first chamber and a second chamber of the refrigerator; determining a first temperature difference between the temperature of the first chamber and a second preset temperature and a second temperature difference between the temperature of the second chamber and a third preset temperature; and when the duration of the first temperature difference smaller than the first preset value and the duration of the second temperature difference smaller than the second preset value are both longer than or equal to a first preset time, controlling a compressor piston of the refrigerator to run at a first stroke, wherein the first stroke is smaller than the maximum stroke of the compressor piston. The method and the device for controlling the refrigerating capacity of the refrigerator and the refrigerator are simple to control, low in cost, suitable for the current refrigerator market and have good economic advantages.
Description
Technical Field
The invention relates to household appliances, in particular to a method and a device for controlling the refrigerating capacity of a refrigerator and the refrigerator.
Background
At present, due to the requirement of energy conservation, a plurality of frequency conversion refrigerators appear on the market, the principle of the frequency conversion refrigerator is that the power supply frequency of a compressor is changed through a frequency conversion plate, so that the rotating speed of the compressor is adjusted, and after the rotating speed of the compressor is changed, the amount of compressed and discharged gaseous refrigerants in unit time is changed, so that the flow rate of refrigerants in a refrigerating system of the refrigerator is changed, and the effect of changing the refrigerating capacity of the whole refrigerator is realized. The inventor of the present application finds that the above solution of the prior art has the following defects in the process of implementing the present invention: when the frequency conversion refrigerator operates at low frequency, the refrigerating capacity is smaller, and when the frequency conversion refrigerator operates at high frequency, the refrigerating capacity is larger. Generally, the cost of the inverter refrigerator is higher than that of the fixed-frequency refrigerator.
Disclosure of Invention
The embodiment of the invention aims to provide a method and a device for controlling the refrigerating capacity of a refrigerator and the refrigerator.
In order to achieve the above object, an embodiment of the present invention provides a method for controlling a cooling capacity of a refrigerator, where the method includes: detecting an ambient temperature outside the refrigerator; when the ambient temperature is lower than a first preset temperature, detecting the temperatures of a first chamber and a second chamber of the refrigerator; determining a first temperature difference between the temperature of the first chamber and a second preset temperature and a second temperature difference between the temperature of the second chamber and a third preset temperature; and when the duration of the first temperature difference smaller than the first preset value and the duration of the second temperature difference smaller than the second preset value are both longer than or equal to a first preset time, controlling a compressor piston of the refrigerator to run at a first stroke, wherein the first stroke is smaller than the maximum stroke of the compressor piston.
Preferably, the control method further includes: and when the ambient temperature is greater than or equal to the first preset temperature, or the first temperature difference is greater than or equal to the first preset value, or the second temperature difference is greater than or equal to the second preset value, or the duration of the first temperature difference being smaller than the first preset value, or the duration of the second temperature difference being smaller than the second preset value is smaller than the second preset time, controlling the compressor piston to run by a second stroke, wherein the second stroke is greater than the first stroke.
Preferably, the control method further includes: detecting the opening state of the refrigerator door; and after the refrigerator door is opened and closed or frost is removed, controlling the compressor piston to run at a second stroke, wherein the second stroke is larger than the first stroke.
Preferably, after the step of controlling the compressor piston to operate at the second stroke after the refrigerator door is opened or defrosted, the method further comprises: detecting the temperature of the first chamber and the second chamber; determining the first temperature difference and the second temperature difference; and when the duration of the first temperature difference smaller than the first preset value and the duration of the second temperature difference smaller than the second preset value are both longer than or equal to the second preset time, controlling a compressor piston of the refrigerator to run in the first stroke.
Preferably, the first compartment is a refrigerator compartment and the second compartment is a freezer compartment.
The embodiment of the invention also provides a refrigerator refrigerating capacity control device, which comprises: the refrigerator comprises a detection unit and a control unit, wherein the detection unit is used for detecting the ambient temperature outside the refrigerator; when the environment temperature is lower than a first preset temperature, detecting the temperatures of a first chamber and a second chamber of the refrigerator; the control unit is used for determining a first temperature difference between the temperature of the first chamber and a second preset temperature and a second temperature difference between the temperature of the second chamber and a third preset temperature; and when the duration of the first temperature difference smaller than the first preset value and the duration of the second temperature difference smaller than the second preset value are both longer than or equal to a first preset time, controlling a compressor piston of the refrigerator to run at a first stroke, wherein the first stroke is smaller than the maximum stroke of the compressor piston.
Preferably, the control unit is further configured to: and when the ambient temperature is greater than or equal to the first preset temperature, or the first temperature difference is greater than or equal to the first preset value, or the second temperature difference is greater than or equal to the second preset value, or the duration of the first temperature difference being smaller than the first preset value, or the duration of the second temperature difference being smaller than the second preset value is smaller than the second preset time, controlling the compressor piston to run by a second stroke, wherein the second stroke is greater than the first stroke.
Preferably, the detection unit is further used for detecting the opening state of the refrigerator door; the control unit is also used for controlling the compressor piston to run at a second stroke after the refrigerator door is opened and closed or after frost is removed, wherein the second stroke is larger than the first stroke.
Preferably, the detection unit is further used for detecting the temperature of the first chamber and the second chamber after the compressor piston operates at the second stroke after the refrigerator door is opened and closed or after frost is removed; the control unit is further configured to determine the first temperature difference and the second temperature difference; and when the duration of the first temperature difference smaller than the first preset value and the duration of the second temperature difference smaller than the second preset value are both longer than or equal to the second preset time, controlling a compressor piston of the refrigerator to run in the first stroke.
The embodiment of the invention also provides a refrigerator, which comprises the refrigerator refrigerating capacity control device.
By adopting the technical scheme, the method and the device for controlling the refrigerating capacity of the refrigerator and the refrigerator provided by the invention are adopted, and the control method comprises the following steps: detecting an ambient temperature outside the refrigerator; when the ambient temperature is lower than a first preset temperature, detecting the temperatures of a first chamber and a second chamber of the refrigerator; determining a first temperature difference between the temperature of the first chamber and a second preset temperature and a second temperature difference between the temperature of the second chamber and a third preset temperature; and when the duration time of the first temperature difference smaller than the first preset value and the duration time of the second temperature difference smaller than the second preset value are both longer than or equal to the first preset time, controlling a compressor piston of the refrigerator to run at a first stroke, wherein the first stroke is smaller than the maximum stroke of the compressor piston, and therefore the energy-saving effect is achieved. The method and the device for controlling the refrigerating capacity of the refrigerator and the refrigerator are simple to control, low in cost, suitable for the current refrigerator market and have good economic advantages.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 is a schematic structural diagram of a compressor according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for controlling a cooling capacity of a refrigerator according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for controlling cooling capacity of a refrigerator according to another embodiment of the present invention;
fig. 4 is a flowchart of a method for controlling cooling capacity of a refrigerator according to another embodiment of the present invention;
fig. 5 is a flowchart of a method for controlling cooling capacity of a refrigerator according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a refrigeration capacity control apparatus for a refrigerator according to an embodiment of the present invention.
Description of the reference numerals
601 detection unit 602 control unit.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a schematic structural diagram of a compressor according to an embodiment of the present invention. As shown in fig. 1, the present invention provides a compressor which can adjust the displacement of the compressor by adjusting the movement stroke of the piston, and thus can adjust the overall refrigerating capacity of the refrigerator. As can be seen from fig. 1, normally, the piston of the compressor compresses gas from position 1 to position 3 in one stroke (conversely, when sucking gas, the piston operates from position 3 to position 1), at this time, the suction volume of the compressor is relatively large, the discharge capacity is large, and the refrigerant flow in the refrigeration system of the refrigerator is large, the refrigerating capacity is large, and the requirement of quick refrigeration is met (for example, the quick cooling mode or quick freezing mode of the refrigerator); when the piston is in one stroke and the gas is compressed from the position 2 to the position 3 (on the contrary, when the piston is used for sucking the gas, the gas is compressed from the position 3 to the position 2), the suction volume of the compressor is small, the exhaust gas volume is small, the refrigerant flow in the refrigeration system of the refrigerator is small, the refrigerating capacity is small, and the power of the compressor is also low, so that the requirement of energy saving (for example, the energy saving mode of the refrigerator) is met.
The invention also proposes a control method using the refrigerator in fig. 1 at two displacements. The change of the refrigerating capacity of the refrigerator is related to the ambient temperature, the set function and whether the frostless refrigerator is defrosted or not. The operation of the whole refrigerator is controlled by the main control board in a centralized way, and the operation mode of the compressor is influenced by the ambient temperature and different gears and functions set by a user.
Fig. 2 is a flowchart of a method for controlling cooling capacity of a refrigerator according to an embodiment of the present invention. As shown in fig. 2, an embodiment of the present invention provides a method for controlling a cooling capacity of a refrigerator, where the method includes: detecting an ambient temperature outside the refrigerator (step S21); detecting the temperatures of a first compartment and a second compartment of the refrigerator when the ambient temperature is less than a first preset temperature (step S22); determining a first temperature difference between the temperature of the first compartment and a second preset temperature and a second temperature difference between the temperature of the second compartment and the third preset temperature (step S23); and controlling a compressor piston of the refrigerator to operate at a first stroke when the duration of the first temperature difference being less than a first preset value and the duration of the second temperature difference being less than a second preset value are both greater than or equal to a first preset time, the first stroke being less than the maximum stroke of the compressor piston (step S24).
In this embodiment, under the above-mentioned condition, the compressor piston may be controlled to operate at a first stroke smaller than the maximum stroke of the compressor piston, and compared with the case that the compressor piston always operates at the maximum stroke, the work done by the compressor piston is reduced, so that the purpose of saving energy can be achieved.
Fig. 3 is a flowchart of a method for controlling cooling capacity of a refrigerator according to another embodiment of the present invention. As shown in fig. 3, an embodiment of the present invention provides a method for controlling a cooling capacity of a refrigerator, where the method includes: detecting an ambient temperature outside the refrigerator (step S31); judging whether the environment temperature is less than a first preset temperature (step S32); detecting the temperatures of a first compartment and a second compartment of the refrigerator when the ambient temperature is less than a first preset temperature (step S33); determining a first temperature difference between the temperature of the first compartment and a second preset temperature and a second temperature difference between the temperature of the second compartment and the third preset temperature (step S34); judging whether the first temperature difference is smaller than a first preset value and the second temperature difference is smaller than a second preset value (step S35); when the first temperature difference is smaller than a first preset value and the second temperature difference is smaller than a second preset value, judging whether the duration that the first temperature difference is smaller than the first preset value and the duration that the second temperature difference is smaller than the second preset value are both longer than or equal to a first preset time (step S36); when the duration of the first temperature difference being less than the first preset value and the duration of the second temperature difference being less than the second preset value are both greater than or equal to the first preset time, controlling a compressor piston of the refrigerator to operate in a first stroke (step S37); and when the ambient temperature is greater than or equal to the first preset temperature, or the first temperature difference is greater than or equal to a first preset value, or the second temperature difference is greater than or equal to a second preset value, or the duration of the first temperature difference being smaller than the first preset value or the duration of the second temperature difference being smaller than the second preset value is smaller than the first preset time, controlling the compressor piston to run at a second stroke, wherein the second stroke is greater than the first stroke (step S38).
In the embodiment of the invention, the first compartment can be a refrigerating compartment or a freezing compartment, and the second compartment can also be a refrigerating compartment or a freezing compartment. The first preset temperature is preferably 35 ℃, and the first preset time is preferably 10 hours, but is not limited thereto. In the above, the second preset temperature (preferably 3 to 10 ℃) and the third preset temperature (preferably 6 to 24 ℃) are different, the first temperature difference is different from the second temperature difference, and the first preset value (preferably 0 to 3 ℃) and the second preset value (preferably 0 to 3 ℃) are also different, wherein, in order to achieve more accurate and better energy saving effect, in the case that the first compartment is a refrigerating compartment and the second compartment is a freezing compartment, the second preset temperature and the first preset value may be set for the refrigerating compartment, the third preset temperature and the second preset value may be set for the freezing compartment, and the setting needs to refer to factors such as the setting temperatures of the different compartments and the performance of the refrigerator.
When the duration that the first temperature difference is smaller than the first preset value and the duration that the second temperature difference is smaller than the second preset value are both longer than or equal to the first preset time, the refrigerator is determined to enter a stable operation mode, the required cold quantity is small, the compressor piston is controlled to operate in a first stroke, and the first stroke can correspond to the piston from the position 2 to the position 3, so that the energy-saving requirement is met.
When the ambient temperature is greater than the first preset temperature, or the first temperature difference is greater than the first preset value, or the second temperature difference is greater than the second preset value, or the first temperature difference is less than the duration of the first preset value, or the second temperature difference is less than the duration of the second preset value, the refrigerating capacity required by the refrigerator is large, the compressor piston can be controlled to operate in a second stroke, the second stroke can correspond to the piston which operates from the position 1 to the position 3, the piston is the maximum stroke of the compressor piston of the refrigerator, and the effect of rapid refrigeration can be achieved.
Fig. 4 is a flowchart of a method for controlling cooling capacity of a refrigerator according to another embodiment of the present invention. As shown in fig. 4, the control method further includes: detecting an open state of the refrigerator door (step S41); controlling the compressor piston to operate at a second stroke after the refrigerator door is opened or defrosted, wherein the second stroke is greater than the first stroke (step S42); detecting temperatures of a first compartment and a second compartment of the refrigerator (step S43); determining the first temperature difference and the second temperature difference (step S44); judging whether the first temperature difference is smaller than a first preset value and the second temperature difference is smaller than a second preset value (step S45); when the first temperature difference is smaller than a first preset value and the second temperature difference is smaller than a second preset value, judging whether the duration that the first temperature difference is smaller than the first preset value and the duration that the second temperature difference is smaller than the second preset value are both larger than or equal to a second preset time (step S46); when the duration of the first temperature difference being less than the first preset value and the duration of the second temperature difference being less than the second preset value are both greater than or equal to the second preset time, controlling a compressor piston of the refrigerator to operate in a first stroke (step S47); and when the first temperature difference is greater than or equal to a first preset value, or the second temperature difference is greater than or equal to a second preset value, or the duration that the first temperature difference is smaller than the first preset value or the duration that the second temperature difference is smaller than the second preset value is smaller than a second preset time, controlling the compressor piston to run at a second stroke, wherein the second stroke is greater than the first stroke (step S48).
In the embodiment of the present invention, a second preset time different from the first preset time is set, preferably 1 hour, but not limited thereto, because the refrigerator door is more easily operated smoothly when being opened or closed or defrosting is performed than when the refrigerator is started. In addition, after the refrigerator door is opened or closed or after defrosting is carried out, the compressor piston can be controlled to run for 2 hours in the second stroke, and after 2 hours, the temperatures of the first chamber and the second chamber can be detected.
Fig. 5 is a flowchart of a method for controlling cooling capacity of a refrigerator according to another embodiment of the present invention. As shown in fig. 5, an embodiment of the present invention provides a method for controlling a cooling capacity of a refrigerator, where the method includes: detecting an ambient temperature outside the refrigerator (step S51); judging whether the environment temperature is less than a first preset temperature (step S52); when the ambient temperature is lower than a first preset temperature, judging whether the ambient temperature is in a preset range or not (step S53); detecting temperatures of a first compartment and a second compartment of the refrigerator when the ambient temperature is not in the preset range (step S54); determining a first temperature difference between the temperature of the first compartment and a second preset temperature and a second temperature difference between the temperature of the second compartment and the third preset temperature (step S55); judging whether the first temperature difference is smaller than a first preset value and the second temperature difference is smaller than a second preset value (step S56); when the first temperature difference is smaller than a first preset value and the second temperature difference is smaller than a second preset value, judging whether the duration that the first temperature difference is smaller than the first preset value and the duration that the second temperature difference is smaller than the second preset value are both longer than or equal to a first preset time (step S57); when the duration of the first temperature difference being less than the first preset value and the duration of the second temperature difference being less than the second preset value are both greater than or equal to the first preset time, controlling a compressor piston of the refrigerator to operate in a first stroke (step S58); and when the ambient temperature is greater than or equal to the first preset temperature, or the ambient temperature is in the preset range, or the first temperature difference is greater than or equal to a first preset value, or the second temperature difference is greater than or equal to a second preset value, or one of the duration of the first temperature difference being smaller than the first preset value and the duration of the second temperature difference being smaller than the second preset value is smaller than a first preset time, controlling the compressor piston to run at a second stroke, wherein the second stroke is greater than the first stroke (step S59).
In this embodiment, a plurality of ranges may be divided according to the ambient temperature to perform different control methods, such as 1) when the ambient temperature is greater than a first preset temperature, 2) when the ambient temperature is less than a first preset value and is within a preset range, and 3) when the ambient temperature is less than the first preset value but is not within the preset range, wherein the preset range may be preferably 20-28 ℃, and the temperature of the preset range is the most common environment of the refrigerator, such as a home. When the ambient temperature is in the range, the refrigerator consumes energy stably, so the compressor piston stroke is not controlled, and the compressor piston can be operated with the stroke when the refrigerator is started.
Fig. 6 is a schematic structural diagram of a refrigeration capacity control apparatus for a refrigerator according to an embodiment of the present invention. As shown in fig. 6, an embodiment of the present invention further provides a refrigerator cooling capacity control apparatus, including: a detection unit 601 and a control unit 602, wherein the detection unit 601 is used for detecting the ambient temperature outside the refrigerator; when the environment temperature is lower than a first preset temperature, detecting the temperatures of a first chamber and a second chamber of the refrigerator; the control unit 602 is configured to determine a first temperature difference between the temperature of the first chamber and a second preset temperature, and a second temperature difference between the temperature of the second chamber and the third preset temperature; and when the duration of the first temperature difference smaller than the first preset value and the duration of the second temperature difference smaller than the second preset value are both longer than or equal to a first preset time, controlling a compressor piston of the refrigerator to run at a first stroke, wherein the first stroke is smaller than the maximum stroke of the compressor piston.
Preferably, the control unit 602 is further configured to: and when the ambient temperature is greater than or equal to the first preset temperature, or the first temperature difference is greater than or equal to a first preset value, or the second temperature difference is greater than or equal to a second preset value, or the duration of the first temperature difference being smaller than the first preset value, or the duration of the second temperature difference being smaller than the second preset value is smaller than a second preset time, controlling the compressor piston to run by a second stroke, wherein the second stroke is greater than the first stroke.
Preferably, the detecting unit 602 is further configured to detect an opening state of a refrigerator door; the control unit is also used for controlling the compressor piston to run at a second stroke after the refrigerator door is opened and closed or after frost is removed, wherein the second stroke is larger than the first stroke.
Preferably, the detecting unit 601 is further configured to detect the temperatures of the first and second chambers after the compressor piston operates at the second stroke after the refrigerator door is opened or closed or after frost is removed; the control unit 602 is further configured to determine the first temperature difference and the second temperature difference; and when the duration of the first temperature difference smaller than the first preset value and the duration of the second temperature difference smaller than the second preset value are both longer than or equal to the second preset time, controlling a compressor piston of the refrigerator to run in the first stroke.
The embodiment of the invention also provides a refrigerator, which comprises the refrigerator refrigerating capacity control device.
By adopting the technical scheme, the refrigerator refrigerating capacity control method and device and the refrigerator provided by the invention, the compressor piston of the refrigerator is controlled to run in the first stroke which is smaller than the maximum stroke of the compressor piston, so that the work of the compressor piston can be reduced, and the effect of saving energy is achieved. The method and the device for controlling the refrigerating capacity of the refrigerator and the refrigerator are simple to control, low in cost, suitable for the current refrigerator market and have good economic advantages.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
Those skilled in the art can understand that all or part of the steps in the method for implementing the above embodiments may be implemented by a program instructing related hardware, where the program is stored in a storage medium and includes several instructions to enable a (may be a single chip, a chip, etc.) or a processor (processor) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (10)
1. A method for controlling the refrigerating capacity of a refrigerator is characterized by comprising the following steps:
detecting an ambient temperature outside the refrigerator;
when the ambient temperature is lower than a first preset temperature, detecting the temperatures of a first chamber and a second chamber of the refrigerator;
determining a first temperature difference between the temperature of the first chamber and a second preset temperature and a second temperature difference between the temperature of the second chamber and a third preset temperature; and
and when the duration of the first temperature difference smaller than a first preset value and the duration of the second temperature difference smaller than a second preset value are both longer than or equal to a first preset time, controlling a compressor piston of the refrigerator to run at a first stroke, wherein the first stroke is smaller than the maximum stroke of the compressor piston.
2. The method for controlling the cooling capacity of a refrigerator as claimed in claim 1, further comprising:
and when the ambient temperature is greater than or equal to the first preset temperature, or the first temperature difference is greater than or equal to the first preset value, or the second temperature difference is greater than or equal to the second preset value, or the duration of the first temperature difference being smaller than the first preset value, or the duration of the second temperature difference being smaller than the second preset value is smaller than the second preset time, controlling the compressor piston to run by a second stroke, wherein the second stroke is greater than the first stroke.
3. The method for controlling the cooling capacity of a refrigerator as claimed in claim 1, further comprising:
detecting the opening state of the refrigerator door;
and after the refrigerator door is opened and closed or frost is removed, controlling the compressor piston to run at a second stroke, wherein the second stroke is larger than the first stroke.
4. The method for controlling a refrigerating capacity of a refrigerator according to claim 3, wherein after the step of controlling the compressor piston to operate at the second stroke after the refrigerator door is opened or defrosted, the method further comprises:
detecting the temperature of the first chamber and the second chamber;
determining the first temperature difference and the second temperature difference; and
and when the duration of the first temperature difference smaller than a first preset value and the duration of the second temperature difference smaller than a second preset value are both longer than or equal to a second preset time, controlling a compressor piston of the refrigerator to run in the first stroke.
5. The method for controlling a refrigerating capacity of a refrigerator as claimed in claim 1, wherein the first compartment is a refrigerating compartment and the second compartment is a freezing compartment.
6. A refrigerating capacity control apparatus for a refrigerator, characterized by comprising:
a detection unit and a control unit, wherein,
the detection unit is used for detecting the ambient temperature outside the refrigerator; when the environment temperature is lower than a first preset temperature, detecting the temperatures of a first chamber and a second chamber of the refrigerator;
the control unit is used for determining a first temperature difference between the temperature of the first chamber and a second preset temperature and a second temperature difference between the temperature of the second chamber and a third preset temperature; and when the duration of the first temperature difference smaller than the first preset value and the duration of the second temperature difference smaller than the second preset value are both longer than or equal to a first preset time, controlling a compressor piston of the refrigerator to run at a first stroke, wherein the first stroke is smaller than the maximum stroke of the compressor piston.
7. A refrigerating capacity control apparatus for a refrigerator as claimed in claim 6, wherein said control unit is further configured to:
and when the ambient temperature is greater than or equal to the first preset temperature, or the first temperature difference is greater than or equal to the first preset value, or the second temperature difference is greater than or equal to the second preset value, or the duration of the first temperature difference being smaller than the first preset value, or the duration of the second temperature difference being smaller than the second preset value is smaller than the second preset time, controlling the compressor piston to run by a second stroke, wherein the second stroke is greater than the first stroke.
8. The cooling capacity control apparatus for a refrigerator as claimed in claim 6,
the detection unit is also used for detecting the opening state of the refrigerator door;
the control unit is also used for controlling the compressor piston to run at a second stroke after the refrigerator door is opened and closed or after frost is removed, wherein the second stroke is larger than the first stroke.
9. The cooling capacity control apparatus for a refrigerator as claimed in claim 8,
the detection unit is also used for detecting the temperature of the first chamber and the second chamber after the compressor piston runs in a second stroke after the refrigerator door is opened and closed or after frost is removed;
the control unit is further configured to determine the first temperature difference and the second temperature difference; and when the duration of the first temperature difference smaller than the first preset value and the duration of the second temperature difference smaller than the second preset value are both longer than or equal to the second preset time, controlling a compressor piston of the refrigerator to run in the first stroke.
10. A refrigerator characterized by comprising the refrigerating capacity control apparatus of the refrigerator according to any one of claims 6 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710630074.7A CN109307401B (en) | 2017-07-28 | 2017-07-28 | Refrigerator refrigerating capacity control method and device and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710630074.7A CN109307401B (en) | 2017-07-28 | 2017-07-28 | Refrigerator refrigerating capacity control method and device and refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109307401A CN109307401A (en) | 2019-02-05 |
| CN109307401B true CN109307401B (en) | 2020-08-04 |
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| CN105258446A (en) * | 2015-11-05 | 2016-01-20 | 青岛海尔股份有限公司 | Refrigerator control method and system with linear compressor |
| CN106247728A (en) * | 2016-07-29 | 2016-12-21 | 合肥华凌股份有限公司 | Control method, control device and refrigerator |
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| EP1541949A2 (en) * | 2003-12-10 | 2005-06-15 | Liebherr-Hausgeräte Ochsenhausen GmbH | Method for storing deep frozen articles |
| CN1740721A (en) * | 2005-09-13 | 2006-03-01 | 海信集团有限公司 | Variable frequency refrigerator and control method thereof |
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| CN109307401A (en) | 2019-02-05 |
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