CN115371348B - Air supply control method of refrigerator and refrigerator - Google Patents
Air supply control method of refrigerator and refrigerator Download PDFInfo
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- CN115371348B CN115371348B CN202110559967.3A CN202110559967A CN115371348B CN 115371348 B CN115371348 B CN 115371348B CN 202110559967 A CN202110559967 A CN 202110559967A CN 115371348 B CN115371348 B CN 115371348B
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000005057 refrigeration Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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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
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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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling 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
- 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
- F25D17/08—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 using ducts
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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
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
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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)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention provides an air supply control method of a refrigerator and the refrigerator. Wherein the top and the below in storing space of refrigerator are provided with first air outlet and second air outlet respectively, and first air outlet and second air outlet are provided with first air door and second air door respectively, are provided with the rack that can reciprocate between first air outlet and the second air outlet, and air supply control method includes: acquiring the actual position of a rack; determining a first air outlet area of the first air outlet and a second air outlet area of the second air outlet according to the actual position; and controlling the first air door to be a first switch angle according to the first air outlet area, and controlling the second air door to be a second switch angle according to the second air outlet area. According to the scheme, the air supply quantity of the storage space of the refrigerator is reasonably distributed, so that the temperature distribution in the storage space is uniform.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to an air supply control method of a refrigerator and the refrigerator.
Background
Along with the increasing development of society and the continuous improvement of living standard of people, the living rhythm of people is faster and faster, so that people are willing to buy a lot of foods in the refrigerator, and the refrigerator becomes one of the household appliances indispensable in daily life of people.
The current refrigerator generally adjusts the air supply quantity of the storage space by controlling the opening and closing angle of an air door at an air outlet. And the air outlets of the air duct of the refrigerator are generally positioned at two sides or in front of the air duct, and the positions of the air outlets are fixed. In the prior art, temperature sensor control is often adopted, and the temperature sensor has certain delay to influence the temperature regulation in the storage space. In addition, the air doors at different positions are often controlled uniformly, so that the actual temperature conditions of different areas of the storage space cannot be considered, the temperature distribution in the storage space is uneven, and the whole energy consumption of the refrigerator is high.
Disclosure of Invention
The invention aims to reasonably distribute the air supply quantity of the storage space of the refrigerator so as to ensure that the temperature distribution in the storage space is uniform.
The invention further aims to improve the storage effect and the use experience of a user while reducing the energy consumption of the refrigerator.
In particular, the present invention provides an air supply control method for a refrigerator, wherein a first air outlet and a second air outlet are respectively arranged above and below a storage space of the refrigerator, the first air outlet and the second air outlet are respectively provided with a first air door and a second air door, a rack capable of moving up and down is arranged between the first air outlet and the second air outlet, and the air supply control method comprises: acquiring the actual position of a rack; determining a first air outlet area of the first air outlet and a second air outlet area of the second air outlet according to the actual position; and controlling the first air door to be a first switch angle according to the first air outlet area, and controlling the second air door to be a second switch angle according to the second air outlet area.
Optionally, the rack is driven by a motor to move up and down, and the step of acquiring the actual position of the rack includes: the number of turns of the motor is obtained, and the actual position of the rack is determined according to the number of turns.
Optionally, the step of determining the first air outlet area of the first air outlet and the second air outlet area of the second air outlet according to the actual position includes: calculating the upper volume and the lower volume of the rack according to the actual position; calculating first air supply quantity and second air supply quantity required by the upper part and the lower part of the rack according to the upper volume and the lower volume respectively; and respectively determining a first air outlet area and a second air outlet area according to the first air supply quantity and the second air supply quantity.
Optionally, the step of calculating the upper and lower volumes of the rack according to the actual position includes: determining a first height of the rack from the top of the storage space and a second height of the rack from the bottom of the storage space according to the actual position; acquiring the length and the width of a pre-obtained storage space; and multiplying the length and the width by the first height to obtain an upper volume, and multiplying the length and the width by the second height to obtain a lower volume.
Optionally, the step of calculating the first air supply amount and the second air supply amount required above and below the rack according to the upper volume and the lower volume respectively includes: and calculating the product of Fang Rongji and a first preset coefficient to obtain a first air supply quantity, and calculating the product of the lower volume and a second preset coefficient to obtain a second air supply quantity.
Optionally, the step of determining the first air outlet area and the second air outlet area according to the first air supply volume and the second air supply volume includes: acquiring the wind speed of a wind supply fan of the refrigerator; calculating the quotient of the first air supply quantity and the air speed to obtain a first air outlet area, and calculating the quotient of the second air supply quantity and the air speed to obtain a second air outlet area.
Optionally, the step of controlling the first air door to be at a first switching angle according to the first air outlet area and controlling the second air door to be at a second switching angle according to the second air outlet area includes: inquiring an air supply information table to obtain a first switch angle corresponding to a first air outlet area and a second switch angle corresponding to a second air outlet area in a matching way, wherein the air supply information table is pre-stored with switch angles corresponding to different air outlet areas; and controlling the first air door to be a first switch angle and controlling the second air door to be a second switch angle.
Optionally, after the step of controlling the first damper to the first opening and closing angle and controlling the second damper to the second opening and closing angle, the method further includes: acquiring the actual temperature of the storage space; judging whether the actual temperature reaches the starting temperature of the storage space or not; and if so, controlling the opening of a refrigerating system of the refrigerator and supplying air to the storage space.
Optionally, the back of storing space is provided with the wind channel, and the upper portion of wind channel is provided with first air outlet, and the below of wind channel is provided with the second air outlet.
According to another aspect of the present invention, there is also provided a refrigerator including a control device including a processor and a memory, wherein the memory stores a control program, and the control program is used to implement the air supply control method of the refrigerator when executed by the processor.
According to the air supply control method of the refrigerator and the refrigerator, the first air outlet and the second air outlet are respectively arranged above and below the storage space of the refrigerator, the first air outlet and the second air outlet are respectively provided with the first air door and the second air door, the rack capable of moving up and down is arranged between the first air outlet and the second air outlet, the air supply quantity of the storage space of the refrigerator is reasonably distributed by acquiring the actual position of the rack, determining the first air outlet area of the first air outlet and the second air outlet area of the second air outlet according to the actual position, controlling the first air door to be a first switch angle according to the first air outlet area, controlling the second air door to be a second switch angle according to the second air outlet area, and the rack capable of moving up and down can meet the storage of objects with different heights.
Further, according to the air supply control method of the refrigerator and the refrigerator, the upper volume and the lower volume of the rack are calculated according to the actual positions; calculating first air supply quantity and second air supply quantity required by the upper part and the lower part of the rack according to the upper volume and the lower volume respectively; and the first air outlet area and the second air outlet area are respectively determined according to the first air supply quantity and the second air supply quantity, so that the air supply quantities above and below the rack are respectively matched with the upper volume and the lower volume of the rack, the uniform temperature distribution in the storage space is further ensured, the storage effect is effectively improved, meanwhile, the excessive cold supply quantity in a smaller space can be avoided, the refrigerator energy consumption is reduced to a certain extent, and the use experience of a user is improved.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
Fig. 1 is a schematic view of a structure of a refrigerator according to an embodiment of the present invention;
fig. 2 is a schematic view illustrating an internal structure of a storage space of a refrigerator according to an embodiment of the present invention;
fig. 3 is a block diagram of a control device of a refrigerator according to an embodiment of the present invention;
fig. 4 is a schematic view of an air supply control method of a refrigerator according to an embodiment of the present invention; and
Fig. 5 is a detailed flowchart of an air supply control method of a refrigerator according to an embodiment of the present invention.
Detailed Description
The embodiment firstly provides a refrigerator, and the air supply quantity of the storage space of the refrigerator can be reasonably distributed, so that the temperature distribution in the storage space is uniform. Fig. 1 is a schematic structural view of a refrigerator 100 according to an embodiment of the present invention, and fig. 2 is a schematic structural view of an inside of a storage space 111 of the refrigerator 100 according to an embodiment of the present invention. As shown in fig. 1 and 2, a first air outlet 131 and a second air outlet 132 are respectively disposed above and below the storage space 111 of the refrigerator 100, the first air outlet 131 and the second air outlet 132 are respectively provided with a first air door 141 and a second air door 142, and a rack 150 capable of moving up and down is disposed between the first air outlet 131 and the second air outlet 132. In a preferred embodiment, the back of the storage space 111 is provided with an air duct 112, a first air outlet 131 is provided at the upper part of the air duct 112, and a second air outlet 132 is provided below the air duct 112.
Specifically, the rack 150 may be driven by a motor to achieve up-and-down movement, that is, the rack 150 is liftable. In addition, the motor may be provided with a hall sensor, and the number of rotations of the motor may be acquired to determine the actual position of the rack 150 through the number of rotations. The opening and closing angles of the first and second dampers 141 and 142 are adjustable, and in one specific embodiment, the first and second dampers 141 and 142 may be considered to be completely closed when the opening and closing angles are 0 °; when the opening and closing angle of the first damper 141 and the second damper 142 is 90 °, it can be considered that the first damper is completely opened; the first damper 141 and the second damper 142 may be considered to be partially opened when the opening and closing angle is an angle between 0 ° and 90 °.
Note that, the refrigerator 100 may generally include: a case 110 and a door 120. Wherein, the storage space 111 is defined inside the case 110. The number and structure of the storage spaces 111 may be configured according to the requirement, and fig. 1 shows a case where a first space, a second space, and a third space are sequentially disposed one above the other; the above space can be configured into a refrigerating space, a freezing space, a temperature changing space or a fresh-keeping space according to different purposes. Each storage space 111 may be divided into a plurality of storage areas by a partition plate, and stores articles using the rack 150 or the drawer.
The door 120 is disposed on the front surface of the case 110 to close the storage space 111. The door 120 may be disposed corresponding to the storage spaces 111, that is, each storage space 111 corresponds to one or more doors 120. The number of the storage spaces 111 and the door 120, and the functions of the storage spaces 111 may be actually selected according to the specific situation. The refrigerator 100 of the embodiment is provided with a first door, a second door, and a third door corresponding to a first space, a second space, and a third space that are sequentially arranged up and down. The door 120 may be pivotally disposed on the front surface of the case 110, and may be opened in a drawer manner, so as to implement a drawer-type storage space, where the drawer-type storage space is often provided with a metal sliding rail, so that the effect of opening and closing the drawer is soft and noise is reduced. The door opening mode of the first space of the refrigerator 100 of the embodiment is a pivoting opening mode, and the door opening modes of the second space and the third space are drawer opening modes.
The refrigerator 100 may also include a refrigeration system configured to provide cooling to the storage space 111. The refrigeration system may be a compression refrigeration system, and in particular may include an evaporator, a condenser, a compressor, and the like. The refrigeration system provides different amounts of cooling to the various types of storage spaces 111 such that the temperatures within the various types of storage spaces 111 are also different. For example, the temperature in the refrigerated space is generally between 2 ℃ and 10 ℃, preferably between 4 ℃ and 7 ℃. The temperature in the refrigerated space is generally in the range of-22 ℃ to-14 ℃. The optimal storage temperatures for different types of articles are not the same, and thus the storage spaces 111 suitable for storage are not the same. For example, fruits and vegetables are suitable for storage in a refrigerated space or a fresh-keeping space, and meat is suitable for storage in a frozen space. Preferably, the liftable rack 150 of the present embodiment may be provided to the refrigerating space for placing the articles of the refrigerating space.
The refrigerator 100 may further include a control device 200, and fig. 3 is a block diagram of the control device 200 of the refrigerator 100 according to an embodiment of the present invention. The control device 200 includes a processor 210 and a memory 220, wherein the memory 220 stores a control program 221, and the control program 221, when executed by the processor 210, is used to implement the air supply control method of the refrigerator of any one of the embodiments described below.
The embodiment also provides a method for controlling air supply of the refrigerator, and fig. 4 is a schematic diagram of the method for controlling air supply of the refrigerator according to an embodiment of the invention. The air supply control method of the refrigerator may be performed using the refrigerator 100 of any of the above embodiments. As shown in fig. 4, the air supply control method of the refrigerator sequentially performs the following steps:
step S402, obtaining the actual position of the rack 150;
step S404, determining a first air outlet area of the first air outlet 131 and a second air outlet area of the second air outlet 132 according to the actual position;
In step S406, the first air door 141 is controlled to a first opening/closing angle according to the first air outlet area, and the second air door 142 is controlled to a second opening/closing angle according to the second air outlet area.
In the above steps, the step of acquiring the actual position of the rack 150 in step S402 includes: the number of turns of the motor is acquired, and the actual position of the rack 150 is determined according to the number of turns. As mentioned above, the motor may be provided with a hall sensor, through which the number of rotations of the motor may be acquired, to determine the actual position of the rack 150 through the number of rotations. In addition, the number of turns may include two cases, positive and negative, where positive represents the ascending of the rack 150 and negative represents the descending of the rack 150. The specific position after the rack 150 is raised or lowered can be accurately determined by the number of turns.
The specific step of determining the first air outlet area of the first air outlet 131 and the second air outlet area of the second air outlet 132 according to the actual position in step S404 may include: calculating an upper volume and a lower volume of the rack 150 according to the actual positions; calculating a first air supply amount and a second air supply amount required above and below the rack 150 according to the upper volume and the lower volume, respectively; and respectively determining a first air outlet area and a second air outlet area according to the first air supply quantity and the second air supply quantity.
More specifically, the step of calculating the upper and lower volumes of the rack 150 according to the actual positions may include: determining a first height of the rack 150 from the top of the storage space 111 and a second height of the rack from the bottom of the storage space 111 according to the actual positions; acquiring the length and width of the storage space 111 obtained in advance; and multiplying the length and the width by the first height to obtain an upper volume, and multiplying the length and the width by the second height to obtain a lower volume.
The step of calculating the first air supply amount and the second air supply amount required above and below the rack 150 according to the upper volume and the lower volume, respectively, may include: and calculating the product of Fang Rongji and a first preset coefficient to obtain a first air supply quantity, and calculating the product of the lower volume and a second preset coefficient to obtain a second air supply quantity. That is, the first air delivery is proportional to the upper volume; the second air delivery is proportional to the lower volume. It should be noted that the first preset coefficient and the second preset coefficient may be the same or different, and may be set in advance according to the actual situation and the experimental result.
The step of determining the first air outlet area and the second air outlet area according to the first air supply amount and the second air supply amount respectively may include: acquiring the wind speed of a wind blower of the refrigerator 100; calculating the quotient of the first air supply quantity and the air speed to obtain a first air outlet area, and calculating the quotient of the second air supply quantity and the air speed to obtain a second air outlet area.
In step S406, the specific step of controlling the first air door 141 to be at the first opening and closing angle according to the first air outlet area and controlling the second air door 142 to be at the second opening and closing angle according to the second air outlet area may include: inquiring an air supply information table to obtain a first switch angle corresponding to a first air outlet area and a second switch angle corresponding to a second air outlet area in a matching way, wherein the air supply information table is pre-stored with switch angles corresponding to different air outlet areas; and controlling the first damper 141 to be a first switching angle and controlling the second damper 142 to be a second switching angle.
According to the air supply control method of the refrigerator, a first air outlet 131 and a second air outlet 132 are respectively arranged above and below a storage space 111 of the refrigerator 100, the first air outlet 131 and the second air outlet 132 are respectively provided with a first air door 141 and a second air door 142, a rack 150 capable of moving up and down is arranged between the first air outlet 131 and the second air outlet 132, the actual position of the rack 150 is obtained, the first air outlet area of the first air outlet 131 and the second air outlet area of the second air outlet 132 are determined according to the actual position, the first air door 141 is controlled to be a first switch angle according to the first air outlet area, the second air door 142 is controlled to be a second switch angle according to the second air outlet area, the storage of objects with different heights can be met by the rack 150 capable of moving up and down, the switch angles of the first air door 141 and the second air door 142 are finally determined according to the actual position of the rack 150, and the air supply quantity of the storage space 111 of the refrigerator 100 is reasonably distributed, and the temperature in the storage space 111 is uniform.
In some alternative embodiments, the refrigerator 100 may achieve a higher technical effect by further optimizing and configuring the above steps, and the following describes in detail the air supply control method of the refrigerator according to this embodiment with reference to an alternative execution flow, where this embodiment is merely illustrative of the execution flow, and when implemented, the execution sequence and the operation condition of some steps may be modified according to the specific implementation requirement. Fig. 5 is a detailed flowchart of an air supply control method of a refrigerator according to an embodiment of the present invention. The air supply control method of the refrigerator comprises the following steps:
step S502, acquiring the rotation number of the motor, and determining the actual position of the rack 150 according to the rotation number;
step S504, calculating the upper volume and the lower volume of the rack 150 according to the actual positions;
Step S506, calculating the product of Fang Rongji and a first preset coefficient to obtain a first air supply quantity, and calculating the product of the lower volume and a second preset coefficient to obtain a second air supply quantity;
Step S508, obtaining the wind speed of a wind supply fan of the refrigerator 100;
Step S510, calculating the quotient of the first air supply quantity and the air speed to obtain a first air outlet area, and calculating the quotient of the second air supply quantity and the air speed to obtain a second air outlet area;
step S512, inquiring an air supply information table to obtain a first switch angle corresponding to the first air outlet area and a second switch angle corresponding to the second air outlet area in a matching manner;
in step S514, the first air door 141 is controlled to be at the first opening/closing angle, and the second air door 142 is controlled to be at the second opening/closing angle.
In the above steps, the specific step of calculating the upper and lower volumes of the rack 150 according to the actual positions in step S504 may include: determining a first height of the rack 150 from the top of the storage space 111 and a second height of the rack from the bottom of the storage space 111 according to the actual positions; acquiring the length and width of the storage space 111 obtained in advance; and multiplying the length and the width by the first height to obtain an upper volume, and multiplying the length and the width by the second height to obtain a lower volume.
In step S506, the product of the upper Fang Rongji and the first preset coefficient is calculated to obtain a first air supply quantity, and the product of the lower volume and the second preset coefficient is calculated to obtain a second air supply quantity. In practice, a specific calculation process may be as follows: since the heat load is proportional to the volume, the heat load above the rack 150 can be obtained from the upper volume, and the heat load below the rack 150 can be obtained from the lower volume; in the case where the temperature difference between the evaporator and the storage space 111 is constant, the air volume is also proportional to the heat load, and therefore, the first air volume can be obtained according to the heat load above the rack 150, and the second air volume can be obtained according to the heat load below the rack 150. By integrating the above calculation process, it can be determined that the air volume is proportional to the volume, and therefore, the first air volume can be obtained by calculating the product of Fang Rongji and the first preset coefficient, and the second air volume can be obtained by calculating the product of the lower volume and the second preset coefficient. The first preset coefficient and the second preset coefficient may be the same or different, and may be set in advance according to the actual situation and the experimental result.
In step S512, the air supply information table stores the switch angles corresponding to different air outlet areas in advance, so that the first switch angle corresponding to the first air outlet area and the second switch angle corresponding to the second air outlet area can be obtained by looking up the table and matching. Further, the first damper 141 is controlled to a first switching angle, and the second damper 142 is controlled to a second switching angle.
It should be noted that, in step S514, the step of controlling the first damper 141 to the first opening/closing angle and the step of controlling the second damper 142 to the second opening/closing angle may further include: acquiring the actual temperature of the storage space 111; judging whether the actual temperature reaches the starting temperature of the storage space 111; and if so, controlling the refrigeration system of the refrigerator 100 to be started, and supplying air to the storage space 111. That is, after the opening and closing angles of the first air door 141 and the second air door 142 are determined in advance according to the actual position of the rack 150, it is possible to supply air to the upper side of the rack 150 according to the first opening and closing angle and to supply air to the lower side of the rack 150 according to the second opening and closing angle when the refrigeration system starts to perform refrigeration. It should be noted that, after the position of the rack 150 changes each time, the actual position of the rack may be determined, and then the opening and closing angles of the first air door 141 and the second air door 142 may be adjusted, so that the air supply condition after the start of cooling conforms to the volume separation condition of the storage space 111, and the temperature distribution in the storage space 111 is effectively ensured to be uniform. In addition, when the actual temperature of the storage space 111 reaches the shutdown temperature, the refrigeration system can be controlled to be turned off, and no air is supplied to the storage space 111.
The air supply control method of the refrigerator of the present embodiment calculates the upper volume and the lower volume of the rack 150 according to the actual position; calculating a first air supply amount and a second air supply amount required above and below the rack 150 according to the upper volume and the lower volume, respectively; and confirm first air-out area and second air-out area respectively according to first air supply volume and second air supply volume for the air supply volume of rack 150 top and below matches with the top volume and the below volume of rack 150 respectively, further guarantees that the temperature distribution in the storing space 111 is even, effectively promotes the storing effect, can also avoid excessively providing the cold volume in the less space simultaneously, reduces refrigerator 100's energy consumption to a certain extent, promotes user's use experience.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.
Claims (7)
1. The utility model provides an air supply control method of refrigerator, wherein the top and the below of the storing space of refrigerator are provided with first air outlet and second air outlet respectively, first air outlet with the second air outlet is provided with first air door and second air door respectively, be provided with the rack that can reciprocate between first air outlet and the second air outlet, just the air supply control method includes:
acquiring the actual position of the rack;
Determining a first air outlet area of the first air outlet and a second air outlet area of the second air outlet according to the actual position; and
Controlling the first air door to be a first switch angle according to the first air outlet area, and controlling the second air door to be a second switch angle according to the second air outlet area;
The rack is driven by a motor to move up and down, and
The step of obtaining the actual position of the rack comprises the following steps: acquiring the rotation number of the motor, and determining the actual position of the rack according to the rotation number;
the step of determining the first air outlet area of the first air outlet and the second air outlet area of the second air outlet according to the actual position comprises the following steps:
calculating the upper volume and the lower volume of the rack according to the actual position;
Calculating first air supply quantity and second air supply quantity required by the upper part and the lower part of the rack according to the upper volume and the lower volume respectively; and
The first air outlet area and the second air outlet area are respectively determined according to the first air supply quantity and the second air supply quantity;
The step of calculating the upper volume and the lower volume of the rack according to the actual position comprises the following steps:
Determining a first height of the rack from the top of the storage space and a second height of the rack from the bottom of the storage space according to the actual position;
acquiring the length and the width of the storage space obtained in advance; and
Multiplying the length, width and the first height to obtain the upper volume, and multiplying the length, width and the second height to obtain the lower volume.
2. The air supply control method of a refrigerator according to claim 1, wherein the step of calculating first and second air supply amounts required above and below the rack from the upper and lower volumes, respectively, comprises:
Calculating the product of the upper volume and a first preset coefficient to obtain the first air supply quantity,
And calculating the product of the lower volume and a second preset coefficient to obtain the second air supply quantity.
3. The air supply control method of a refrigerator according to claim 2, wherein the step of determining the first air outlet area and the second air outlet area according to the first air supply amount and the second air supply amount, respectively, includes:
acquiring the wind speed of a wind supply fan of the refrigerator;
calculating the quotient of the first air supply quantity and the air speed to obtain the first air outlet area,
And calculating the quotient of the second air supply quantity and the air speed to obtain the second air outlet area.
4. The air supply control method of a refrigerator according to claim 1, wherein the step of controlling the first damper to a first switching angle according to the first air outlet area and controlling the second damper to a second switching angle according to the second air outlet area comprises:
Inquiring an air supply information table to obtain the first switch angle corresponding to the first air outlet area and the second switch angle corresponding to the second air outlet area in a matching mode, wherein the air supply information table stores switch angles corresponding to different air outlet areas in advance; and
And controlling the first air door to be at the first switch angle and controlling the second air door to be at the second switch angle.
5. The air supply control method of a refrigerator according to claim 1, wherein after the steps of controlling the first damper to the first switching angle and controlling the second damper to the second switching angle, further comprising:
acquiring the actual temperature of the storage space;
Judging whether the actual temperature reaches the starting temperature of the storage space or not; and
If yes, controlling a refrigerating system of the refrigerator to be started, and supplying air to the storage space.
6. The air supply control method of a refrigerator according to claim 1, wherein,
The back of storing space is provided with the wind channel, just the upper portion of wind channel is provided with first air outlet, the below of wind channel is provided with the second air outlet.
7. A refrigerator comprising a control device including a processor and a memory, wherein the memory stores a control program, and the control program when executed by the processor is for implementing the air supply control method of the refrigerator according to any one of claims 1 to 6.
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| CN115371348A (en) | 2022-11-22 |
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