CN110345698B - Control method and device for refrigerating fan of refrigerator and refrigerator - Google Patents
Control method and device for refrigerating fan of refrigerator and refrigerator Download PDFInfo
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- CN110345698B CN110345698B CN201810283224.6A CN201810283224A CN110345698B CN 110345698 B CN110345698 B CN 110345698B CN 201810283224 A CN201810283224 A CN 201810283224A CN 110345698 B CN110345698 B CN 110345698B
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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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
- F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
- F25D2317/0682—Two or more fans
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The embodiment of the invention provides a control method and device for a refrigerating fan of a refrigerator and the refrigerator, belongs to the technical field of refrigeration, and solves the problem that the temperature of a refrigerating chamber or a freezing chamber is low easily when a compressor of a direct-cooling refrigerator in the prior art is started. The method comprises the following steps: when the compressor is started, judging whether the temperature of the freezing chamber is greater than the shutdown temperature of the freezing chamber; when the freezing chamber temperature is higher than the freezing chamber stop temperature, determining that the difference value between the freezing chamber temperature and the freezing chamber stop temperature is a first temperature difference; determining the difference value between the temperature of the refrigerating chamber and the shutdown temperature of the refrigerating chamber as a second temperature difference; and controlling the starting-stopping proportion of the refrigerating fan according to the comparison result of the first temperature difference and the second temperature difference, wherein the starting-stopping proportion is the proportion of the starting-up time and the stopping time of the refrigerating fan in a preset period. The embodiment of the invention is suitable for controlling the refrigeration fan.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to a control method and device of a refrigeration fan of a refrigerator and the refrigerator.
Background
At present, the air direct cooling refrigerator is generally controlled to be started and stopped by a refrigerating chamber temperature sensor, when the temperature measured by the refrigerating chamber temperature sensor is lower than the stopping temperature of the compressor, the compressor is stopped, when the temperature measured by the refrigerating chamber temperature sensor is higher than the starting temperature of the compressor, the compressor is started, and meanwhile, a refrigerating fan and a freezing fan are normally opened when the compressor is started, so that the problem that the temperature of a refrigerating chamber or a freezing chamber is low easily occurs.
Disclosure of Invention
The embodiment of the invention aims to provide a method and a device for controlling a refrigerating fan of a refrigerator and the refrigerator, which solve the problem that the temperature of a refrigerating chamber or a freezing chamber is low easily when a compressor of a direct-cooling refrigerator in the prior art is started, realize flexible control of the temperature of the refrigerating chamber and the freezing chamber, and reasonably distribute the cold quantity of the refrigerating chamber and the freezing chamber.
In order to achieve the above object, an embodiment of the present invention provides a method for controlling a refrigerating fan of a refrigerator, where the refrigerator includes a refrigerating chamber, a refrigerating evaporator, a refrigerating fan, a freezing chamber, a freezing evaporator, and a freezing fan, a refrigerant passes through the refrigerating evaporator and the freezing evaporator in series, and cold energy of the refrigerating evaporator is blown into the refrigerating chamber by the refrigerating fan, and cold energy of the freezing evaporator is blown into the freezing chamber by the freezing fan, the method including: when the compressor is started, judging whether the temperature of the freezing chamber is greater than the shutdown temperature of the freezing chamber; when the freezing chamber temperature is higher than the freezing chamber stop temperature, determining that the difference value between the freezing chamber temperature and the freezing chamber stop temperature is a first temperature difference; determining the difference value between the temperature of the refrigerating chamber and the shutdown temperature of the refrigerating chamber as a second temperature difference; and controlling the starting-stopping proportion of the refrigerating fan according to the comparison result of the first temperature difference and the second temperature difference, wherein the starting-stopping proportion is the proportion of the starting-up time and the stopping time of the refrigerating fan in a preset period.
Optionally, the freezer shutdown temperature is a freezer fan shutdown temperature and the refrigerator shutdown temperature is a compressor shutdown temperature.
Optionally, the method further comprises: and when the temperature of the freezing chamber is less than or equal to the shutdown temperature of the freezing chamber, controlling the startup and shutdown proportion of the refrigerating fan to be the highest proportion.
Optionally, the method further comprises: and when the temperature of the freezing chamber is less than or equal to the shutdown temperature of the freezing chamber, controlling the freezing fan to shut down.
Optionally, the start-stop ratio corresponds to a plurality of preset ratio gears.
Optionally, the controlling the on-off ratio of the refrigeration fan according to the comparison result of the first temperature difference and the second temperature difference comprises: when the first temperature difference is smaller than the second temperature difference, controlling the starting and stopping proportion of the refrigeration fan to be reduced by one gear; when the first temperature difference is larger than the second temperature difference, controlling the starting and stopping proportion of the refrigeration fan to be increased by one gear; and when the first temperature difference is equal to the second temperature difference, controlling the on-off ratio of the refrigerating fan to be kept unchanged.
Optionally, the method further comprises: and when the first temperature difference is larger than the second temperature difference and the starting and stopping proportion of the refrigerating fan is the highest proportion, controlling the starting and stopping proportion of the refrigerating fan to be kept unchanged.
Correspondingly, an embodiment of the present invention further provides a control device for a refrigerating fan of a refrigerator, where the refrigerator includes a refrigerating chamber, a refrigerating evaporator, a refrigerating fan, a freezing chamber, a freezing evaporator, and a freezing fan, a refrigerant sequentially passes through the refrigerating evaporator and the freezing evaporator connected in series, the refrigerating fan blows the cooling energy of the refrigerating evaporator into the refrigerating chamber, and the freezing fan blows the cooling energy of the freezing evaporator into the freezing chamber, the device includes: the judging unit is used for judging whether the temperature of the freezing chamber is greater than the shutdown temperature of the freezing chamber or not when the compressor is started; the first determining unit is used for determining that the difference value between the freezing chamber temperature and the freezing chamber stop temperature is a first temperature difference when the freezing chamber temperature is greater than the freezing chamber stop temperature; the second determining unit is used for determining that the difference value between the refrigerating chamber temperature and the refrigerating chamber stopping temperature is a second temperature difference; and the control unit is used for controlling the starting-stopping proportion of the refrigerating fan according to the comparison result of the first temperature difference and the second temperature difference, wherein the starting-stopping proportion is the proportion of the starting-up time and the stopping time of the refrigerating fan in a preset period.
Optionally, the apparatus further comprises: a freezer temperature sensor for detecting a temperature of the freezer compartment; and the refrigerating chamber temperature sensor is used for detecting the temperature of the refrigerating chamber.
Optionally, the freezer shutdown temperature is a freezer fan shutdown temperature and the refrigerator shutdown temperature is a compressor shutdown temperature.
Optionally, the control unit is further configured to control the on-off ratio of the refrigeration fan to be a highest ratio when the freezing chamber temperature is less than or equal to the freezing chamber shutdown temperature.
Optionally, the control unit is further configured to control the freezing fan to stop when the freezing chamber temperature is less than or equal to the freezing chamber stop temperature.
Optionally, the start-stop ratio corresponds to a plurality of preset ratio gears.
Optionally, the control unit is further configured to control the on-off ratio of the refrigeration fan to be decreased by one gear when the first temperature difference is smaller than the second temperature difference; when the first temperature difference is larger than the second temperature difference, controlling the starting and stopping proportion of the refrigeration fan to be increased by one gear; and when the first temperature difference is equal to the second temperature difference, controlling the on-off ratio of the refrigerating fan to be kept unchanged.
Optionally, the control unit is further configured to control the on-off ratio of the refrigeration fan to remain unchanged when the first temperature difference is greater than the second temperature difference and the on-off ratio of the refrigeration fan is the highest ratio.
Correspondingly, the embodiment of the invention also provides a refrigerator, which comprises the control device of the refrigerator refrigerating fan in the embodiment.
Through the technical scheme, when the compressor is started, whether the freezing chamber temperature is greater than the freezing chamber stop temperature is judged, when the freezing chamber temperature is greater than the freezing chamber stop temperature, the difference between the freezing chamber temperature and the freezing chamber stop temperature is the first temperature difference, and the difference between the refrigerating chamber temperature and the refrigerating chamber stop temperature is the second temperature difference, and the start-stop proportion of the refrigerating fan is controlled according to the comparison result of the first temperature difference and the second temperature difference. According to the energy conservation law, on the premise that the energy of the conveyed refrigerant is fixed, the sum of the cold quantity blown into the refrigerating chamber by the refrigerating fan and the cold quantity blown into the freezing chamber by the freezing fan is the refrigerant energy, so that the cold quantity blown into the refrigerating chamber and the cold quantity blown into the freezing chamber are determined by comparing the first temperature difference with the second temperature difference, the problem that the temperature of the refrigerating chamber or the freezing chamber is low easily caused when a compressor of a direct cooling refrigerator in the prior art is started is solved, the temperature of the refrigerating chamber and the freezing chamber is flexibly controlled, and the cold quantities of the refrigerating chamber and the freezing chamber are reasonably distributed.
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 flow chart illustrating a method for controlling a refrigerating fan of a refrigerator according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating a method for controlling a cooling fan of a refrigerator according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a control device of a refrigerating fan of a refrigerator according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another control device for a refrigerating fan of a refrigerator according to an embodiment of the present invention.
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.
The refrigerator provided by the embodiment of the invention comprises a refrigerating chamber, a refrigerating evaporator, a refrigerating fan, a freezing chamber, a freezing evaporator and a freezing fan, wherein a refrigerant sequentially passes through the refrigerating evaporator and the freezing evaporator which are connected in series, the refrigerating fan blows the cold energy of the refrigerating evaporator into the refrigerating chamber, and the freezing fan blows the cold energy of the freezing evaporator into the freezing chamber. According to the law of conservation of energy, on the premise that the energy of a conveyed refrigerant is fixed, the sum of the cold energy blown into the refrigerating chamber by the refrigerating fan and the cold energy blown into the freezing chamber by the freezing fan is the refrigerant energy, so that when the cold energy entering the refrigerating chamber is large, the cold energy entering the freezing chamber is relatively small, and vice versa. In the embodiment of the invention, the refrigerating capacity entering the refrigerating chamber and the freezing chamber is controlled by controlling the on-off ratio of the refrigerating fan.
Fig. 1 is a flowchart illustrating a method for controlling a refrigerating fan of a refrigerator according to an embodiment of the present invention. As shown in fig. 1, the method comprises the steps of:
103, determining the difference value between the temperature of the refrigerating chamber and the shutdown temperature of the refrigerating chamber as a second temperature difference;
and 104, controlling the starting-stopping proportion of the refrigerating fan according to the comparison result of the first temperature difference and the second temperature difference, wherein the starting-stopping proportion is the proportion of the starting-up time and the stopping time of the refrigerating fan in a preset period.
And when the temperature of the refrigerating chamber is higher than the starting temperature of the refrigerating chamber, the compressor is started. And the starting temperature of the refrigerating chamber is the starting temperature of the compressor. In addition, the freezing chamber stop temperature is a freezing fan stop temperature, and the refrigerating chamber stop temperature is a compressor stop temperature.
The starting-stopping proportion is the proportion of the starting-up time and the stopping time of the refrigeration fan in a preset period. For example, the preset period is 4 minutes, the start-stop ratio may be 1 to 1, that is, the corresponding start-up time is 2 minutes, and the corresponding stop time is 2 minutes, or 3 to 1, the start-up time is 3 minutes, and the stop time is 1 minute, and so on.
The starting and stopping proportion corresponds to a plurality of preset proportion gears, the higher the gear is, the larger the corresponding starting and stopping proportion is, and the lower the gear is, the smaller the corresponding starting and stopping proportion is. For example, the highest ratio is that the refrigerating fan is normally open, that is, the refrigerating fan is always operated for the preset period, and if the preset period is 4 minutes, the refrigerating fan is operated for 4 minutes. The minimum proportion is that the refrigerating fan is stopped, i.e. the refrigerating fan is stopped within the preset period. For example, when the preset period is 4 minutes, the preset proportional gear is changed from small to large, and the preset proportional gear may be the refrigeration fan is stopped, 1: 3, 1: 1, 3: 1, and the refrigeration fan is normally opened.
In step 104, controlling the on-off ratio of the refrigeration fan according to the comparison result of the first temperature difference and the second temperature difference specifically includes the following operations:
1) and when the first temperature difference is smaller than the second temperature difference, controlling the starting and stopping proportion of the refrigerating fan to be reduced by one gear. When the first temperature difference is smaller than the second temperature difference, the freezing chamber needs to be refrigerated, according to the law of conservation of energy, on the premise that the energy of the conveyed refrigerant is fixed, the sum of the cold quantity blown into the refrigerating chamber by the refrigerating fan and the cold quantity blown into the freezing chamber by the freezing fan is the refrigerant energy, the cold quantity blown into the refrigerating chamber by the refrigerating fan is reduced, the corresponding cold quantity blown into the freezing chamber by the freezing fan is increased, namely the starting and stopping proportion of the refrigerating fan is controlled to be reduced by one gear, so that more cold quantity is blown into the freezing chamber by the freezing fan, for example, if the current starting and stopping proportion of the refrigerating fan is 1 to 1, one gear can be reduced, and if the current starting and stopping proportion of the refrigerating fan is 1 to 3.
In addition, if the current on-off ratio of the refrigeration fan is already the minimum ratio, that is, the refrigeration fan is stopped, the on-off ratio of the refrigeration fan is kept unchanged, and the stopped state is continuously kept.
2) And when the first temperature difference is larger than the second temperature difference, controlling the starting and stopping proportion of the refrigerating fan to be increased by one gear. When the first temperature difference is larger than the second temperature difference, which indicates that the refrigerating chamber needs to be cooled more, the cooling capacity blown into the refrigerating chamber by the refrigerating fan needs to be increased, that is, the on-off ratio of the refrigerating fan is controlled to be increased by one gear, for example, if the current on-off ratio of the refrigerating fan is 1 to 1, the gear can be increased by one gear, for example, the gear is increased by 3 to 1.
In addition, if the current on-off ratio of the refrigeration fan is already the highest ratio, that is, the refrigeration fan is normally open, the on-off ratio of the refrigeration fan is kept unchanged, and the normal open state is continuously kept.
3) And when the first temperature difference is equal to the second temperature difference, controlling the on-off ratio of the refrigerating fan to be kept unchanged. And when the first temperature difference is equal to the second temperature difference, the refrigerating capacity required by the refrigerating chamber and the freezing chamber is almost the same, and the on-off ratio of the current refrigerating fan is kept.
Through the technical scheme, when the compressor is started, the freezing chamber temperature is greater than during the freezing chamber shutdown temperature, the freezing chamber temperature is determined to be the first temperature difference with the difference of the freezing chamber shutdown temperature and the difference of the refrigerating chamber temperature and the refrigerating chamber shutdown temperature is the second temperature difference, and the start-stop proportion of the refrigerating fan is controlled according to the comparison result of the first temperature difference and the second temperature difference. The embodiment of the invention solves the problem that the temperature of the refrigerating chamber or the freezing chamber is low easily when the compressor of the direct-cooling refrigerator in the prior art is started, realizes flexible control of the temperature of the refrigerating chamber and the freezing chamber, and reasonably distributes the cooling capacity of the refrigerating chamber and the freezing chamber.
For better understanding of the embodiment of the present invention, fig. 2 is a schematic flow chart of another method for controlling a refrigerating fan of a refrigerator according to the embodiment of the present invention. As shown in fig. 2, the method comprises the steps of:
and 204, controlling the on-off ratio of the refrigerating fan to be the highest ratio when the freezing chamber temperature is less than or equal to the freezing chamber stop temperature.
When the temperature of the freezing chamber is less than or equal to the shutdown temperature of the freezing chamber, the freezing chamber does not need to be refrigerated, the startup and shutdown proportion of the refrigerating fan is controlled to be the highest proportion, and the freezing fan can be controlled to be shut down, so that more cold energy is distributed to the refrigerating chamber.
in step 206, the difference between the refrigerating chamber temperature and the refrigerating chamber stopping temperature is determined as a second temperature difference.
And controlling the starting and stopping proportion of the refrigerating fan according to the comparison result of the first temperature difference and the second temperature difference. The starting-stopping proportion is the proportion of the starting-up time and the stopping time of the refrigeration fan in a preset period. For example, the preset period is 4 minutes, the start-stop ratio may be 1 to 1, that is, the corresponding start-up time is 2 minutes, and the corresponding stop time is 2 minutes, or 3 to 1, the start-up time is 3 minutes, and the stop time is 1 minute, and so on.
In addition, the start-stop ratios correspond to a plurality of preset ratio gears, the higher the gear is, the larger the corresponding start-stop ratio is, and the lower the gear is, the smaller the corresponding start-stop ratio is. For example, the highest ratio is that the refrigerating fan is normally open, that is, the refrigerating fan is always operated for the preset period, and if the preset period is 4 minutes, the refrigerating fan is operated for 4 minutes. The minimum proportion is that the refrigerating fan is stopped, i.e. the refrigerating fan is stopped within the preset period. For example, when the preset period is 4 minutes, the preset proportional gear is changed from small to large, and the preset proportional gear may be the refrigeration fan is stopped, 1: 3, 1: 1, 3: 1, and the refrigeration fan is normally opened.
and 208, when the first temperature difference is smaller than the second temperature difference, controlling the on-off ratio of the refrigeration fan to be reduced by one gear.
When the first temperature difference is smaller than the second temperature difference, the freezing chamber needs to be refrigerated, according to the law of conservation of energy, on the premise that the energy of the conveyed refrigerant is fixed, the sum of the cold quantity blown into the refrigerating chamber by the refrigerating fan and the cold quantity blown into the freezing chamber by the freezing fan is the refrigerant energy, the cold quantity blown into the refrigerating chamber by the refrigerating fan is reduced, the corresponding cold quantity blown into the freezing chamber by the freezing fan is increased, namely the starting and stopping proportion of the refrigerating fan is controlled to be reduced by one gear, so that more cold quantity is blown into the freezing chamber by the freezing fan, for example, if the current starting and stopping proportion of the refrigerating fan is 1 to 1, one gear can be reduced, and if the current starting and stopping proportion of the refrigerating fan is 1 to 3.
In addition, if the current on-off ratio of the refrigeration fan is already the minimum ratio, that is, the refrigeration fan is stopped, the on-off ratio of the refrigeration fan is kept unchanged, and the stopped state is continuously kept.
and step 210, when the first temperature difference is larger than the second temperature difference, controlling the on-off ratio of the refrigeration fan to be increased by one gear.
When the first temperature difference is larger than the second temperature difference, which indicates that the refrigerating chamber needs to be cooled more, the cooling capacity blown into the refrigerating chamber by the refrigerating fan needs to be increased, that is, the on-off ratio of the refrigerating fan is controlled to be increased by one gear, for example, if the current on-off ratio of the refrigerating fan is 1 to 1, the gear can be increased by one gear, for example, the gear is increased by 3 to 1.
In addition, if the current on-off ratio of the refrigeration fan is already the highest ratio, that is, the refrigeration fan is normally open, the on-off ratio of the refrigeration fan is kept unchanged, and the normal open state is continuously kept.
And step 211, controlling the on-off ratio of the refrigerating fan to be kept unchanged.
According to the embodiment of the invention, when the compressor is started and the temperature of the freezing chamber is greater than the shutdown temperature of the freezing chamber, the difference value between the temperature of the freezing chamber and the shutdown temperature of the freezing chamber is determined to be a first temperature difference and the difference value between the temperature of the refrigerating chamber and the shutdown temperature of the refrigerating chamber is determined to be a second temperature difference, and the startup and shutdown proportion of the refrigerating fan is controlled according to the comparison result of the first temperature difference and the second temperature difference. The embodiment of the invention solves the problem that the temperature of the refrigerating chamber or the freezing chamber is low easily when the compressor of the direct-cooling refrigerator in the prior art is started, realizes flexible control of the temperature of the refrigerating chamber and the freezing chamber, reasonably distributes the cold quantity of the refrigerating chamber and the freezing chamber, effectively prevents the refrigerating chamber from freezing and improves the quality of food stored in the refrigerator.
Correspondingly, fig. 3 is a schematic structural diagram of a control device of a refrigerating fan of a refrigerator according to an embodiment of the present invention. The refrigerator comprises a refrigerating chamber, a refrigerating evaporator, a refrigerating fan, a freezing chamber, a freezing evaporator and a freezing fan, wherein a refrigerant sequentially passes through the refrigerating evaporator and the freezing evaporator which are connected in series, the refrigerating fan blows cold energy of the refrigerating evaporator into the refrigerating chamber, and the freezing fan blows cold energy of the freezing evaporator into the freezing chamber. As shown in fig. 3, the apparatus includes: the judging unit 31 is used for judging whether the temperature of the freezing chamber is greater than the shutdown temperature of the freezing chamber when the compressor is started; a first determining unit 32 for determining a difference between the freezing compartment temperature and the freezing compartment shutdown temperature as a first temperature difference when the freezing compartment temperature is greater than the freezing compartment shutdown temperature; a second determination unit 33 for determining a difference between the refrigerating chamber temperature and the refrigerating chamber stop temperature as a second temperature difference; and the control unit 34 is configured to control a start-stop ratio of the refrigeration fan according to a comparison result of the first temperature difference and the second temperature difference, where the start-stop ratio is a ratio of start-up time and stop time of the refrigeration fan in a preset period.
Wherein, as shown in fig. 4, the apparatus further comprises: a freezer temperature sensor 41 for detecting the freezer temperature; and a refrigerating compartment temperature sensor 42 for detecting the refrigerating compartment temperature.
In addition, the freezing chamber stop temperature is a freezing fan stop temperature, and the refrigerating chamber stop temperature is a compressor stop temperature.
Optionally, the control unit 34 is further configured to control the on-off ratio of the refrigeration fan to be the highest ratio when the freezing chamber temperature is less than or equal to the freezing chamber shutdown temperature.
Optionally, the control unit 34 is further configured to control the freezing fan to stop when the freezing chamber temperature is less than or equal to the freezing chamber stop temperature.
Wherein the start-stop ratio corresponds to a plurality of preset ratio gears.
Optionally, the control unit 34 is further configured to control the on-off ratio of the refrigeration fan to decrease by one gear when the first temperature difference is smaller than the second temperature difference; when the first temperature difference is larger than the second temperature difference, controlling the starting and stopping proportion of the refrigeration fan to be increased by one gear; and when the first temperature difference is equal to the second temperature difference, controlling the on-off ratio of the refrigerating fan to be kept unchanged.
Optionally, the control unit 34 is further configured to control the on-off ratio of the refrigeration fan to be kept unchanged when the first temperature difference is greater than the second temperature difference and the on-off ratio of the refrigeration fan is the highest ratio.
For details and advantages of the control device of the refrigerator refrigeration fan provided by the present invention, reference may be made to the above description of the control method of the refrigerator refrigeration fan provided by the present invention, and further description is omitted here.
Correspondingly, the embodiment of the invention also provides a refrigerator, which comprises the control device of the refrigerating fan of the refrigerator.
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 the 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 will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to 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 (16)
1. A control method of a refrigerating fan of a refrigerator, wherein the refrigerator comprises a refrigerating chamber, a refrigerating evaporator, a refrigerating fan, a freezing chamber, a freezing evaporator and a freezing fan, wherein a refrigerant sequentially passes through the refrigerating evaporator and the freezing evaporator which are connected in series, the refrigerating fan blows the cold energy of the refrigerating evaporator into the refrigerating chamber, and the freezing fan blows the cold energy of the freezing evaporator into the freezing chamber, and the method is characterized by comprising the following steps:
when the compressor is started, judging whether the temperature of the freezing chamber is greater than the shutdown temperature of the freezing chamber;
when the freezing chamber temperature is higher than the freezing chamber stop temperature, determining that the difference value between the freezing chamber temperature and the freezing chamber stop temperature is a first temperature difference;
determining the difference value between the temperature of the refrigerating chamber and the shutdown temperature of the refrigerating chamber as a second temperature difference;
and controlling the starting-stopping proportion of the refrigerating fan according to the comparison result of the first temperature difference and the second temperature difference, wherein the starting-stopping proportion is the proportion of the starting-up time and the stopping time of the refrigerating fan in a preset period.
2. The method of claim 1, wherein the freezer shutdown temperature is a freezer fan shutdown temperature and the fresh food compartment shutdown temperature is a compressor shutdown temperature.
3. The method of claim 1, further comprising:
and when the temperature of the freezing chamber is less than or equal to the shutdown temperature of the freezing chamber, controlling the startup and shutdown proportion of the refrigerating fan to be the highest proportion.
4. The method of claim 3, further comprising:
and when the temperature of the freezing chamber is less than or equal to the shutdown temperature of the freezing chamber, controlling the freezing fan to shut down.
5. The method of claim 1, wherein the start-stop ratios correspond to a plurality of preset ratio steps.
6. The method of claim 5, wherein the controlling the on-off ratio of the refrigeration fan according to the comparison of the first temperature difference and the second temperature difference comprises:
when the first temperature difference is smaller than the second temperature difference, controlling the starting and stopping proportion of the refrigeration fan to be reduced by one gear;
when the first temperature difference is larger than the second temperature difference, controlling the starting and stopping proportion of the refrigeration fan to be increased by one gear;
and when the first temperature difference is equal to the second temperature difference, controlling the on-off ratio of the refrigerating fan to be kept unchanged.
7. The method of claim 5, further comprising:
and when the first temperature difference is larger than the second temperature difference and the starting and stopping proportion of the refrigerating fan is the highest proportion, controlling the starting and stopping proportion of the refrigerating fan to be kept unchanged.
8. The utility model provides a controlling means of refrigerator cold-stored fan, the refrigerator includes walk-in, cold-stored evaporimeter, cold-stored fan, freezer, freezing evaporimeter and freezing fan, wherein the refrigerant loops through the series connection the cold-stored evaporimeter with the freezing evaporimeter, and by the cold-stored fan will the cold volume of cold-stored evaporimeter blows in the walk-in, by the freezing fan will the cold volume of freezing evaporimeter blows in the freezer, its characterized in that, the device includes:
the judging unit is used for judging whether the temperature of the freezing chamber is greater than the shutdown temperature of the freezing chamber or not when the compressor is started;
the first determining unit is used for determining that the difference value between the freezing chamber temperature and the freezing chamber stop temperature is a first temperature difference when the freezing chamber temperature is greater than the freezing chamber stop temperature;
the second determining unit is used for determining that the difference value between the refrigerating chamber temperature and the refrigerating chamber stopping temperature is a second temperature difference;
and the control unit is used for controlling the starting-stopping proportion of the refrigerating fan according to the comparison result of the first temperature difference and the second temperature difference, wherein the starting-stopping proportion is the proportion of the starting-up time and the stopping time of the refrigerating fan in a preset period.
9. The apparatus of claim 8, further comprising:
a freezer temperature sensor for detecting a temperature of the freezer compartment;
and the refrigerating chamber temperature sensor is used for detecting the temperature of the refrigerating chamber.
10. The apparatus of claim 8, wherein the freezer shutdown temperature is a freezer fan shutdown temperature and the refrigerator shutdown temperature is a compressor shutdown temperature.
11. The apparatus of claim 8, wherein the control unit is further configured to control the on-off ratio of the refrigerating fan to be a highest ratio when the freezing chamber temperature is less than or equal to the freezing chamber off temperature.
12. The apparatus of claim 11, wherein the control unit is further configured to control the freezing fan to stop when the freezer compartment temperature is less than or equal to the freezer compartment stop temperature.
13. The apparatus of claim 8, wherein the on-off ratios correspond to a plurality of preset ratio gears.
14. The apparatus of claim 13, wherein the control unit is further configured to control the on-off ratio of the refrigeration fan to be decreased by one gear when the first temperature difference is smaller than the second temperature difference; when the first temperature difference is larger than the second temperature difference, controlling the starting and stopping proportion of the refrigeration fan to be increased by one gear; and when the first temperature difference is equal to the second temperature difference, controlling the on-off ratio of the refrigerating fan to be kept unchanged.
15. The apparatus of claim 13, wherein the control unit is further configured to control the on-off ratio of the refrigeration fan to remain unchanged when the first temperature difference is greater than the second temperature difference and the on-off ratio of the refrigeration fan is a highest ratio.
16. A refrigerator comprising a control device for a refrigerating fan of the refrigerator as claimed in any one of claims 8 to 15.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810283224.6A CN110345698B (en) | 2018-04-02 | 2018-04-02 | Control method and device for refrigerating fan of refrigerator and refrigerator |
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| CN201810283224.6A CN110345698B (en) | 2018-04-02 | 2018-04-02 | Control method and device for refrigerating fan of refrigerator and refrigerator |
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| CN110345698B true CN110345698B (en) | 2021-02-26 |
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| CN100455958C (en) * | 2003-01-28 | 2009-01-28 | 广东科龙电器股份有限公司 | Control method and device for straight-flow fan of air-cooled refrigerator |
| CN1273791C (en) * | 2004-07-30 | 2006-09-06 | 海信集团有限公司 | Method for controlling time-sharing work of frequency-conversion air-cooled refrigerator |
| CN1779395B (en) * | 2004-11-18 | 2010-05-05 | 乐金电子(天津)电器有限公司 | Refrigerator |
| US9140478B2 (en) * | 2012-05-21 | 2015-09-22 | Whirlpool Corporation | Synchronous temperature rate control for refrigeration with reduced energy consumption |
| CN103900339B (en) * | 2014-02-28 | 2016-02-24 | 海信（山东）冰箱有限公司 | A kind of control method of wind cooling refrigerator |
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