CN113834276A - Refrigerator refrigeration control method and device and refrigerator - Google Patents
Refrigerator refrigeration control method and device and refrigerator Download PDFInfo
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- CN113834276A CN113834276A CN202111102073.8A CN202111102073A CN113834276A CN 113834276 A CN113834276 A CN 113834276A CN 202111102073 A CN202111102073 A CN 202111102073A CN 113834276 A CN113834276 A CN 113834276A
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 169
- 238000000034 method Methods 0.000 title claims abstract description 53
- 230000008569 process Effects 0.000 claims abstract description 15
- 230000000630 rising effect Effects 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims description 56
- 238000004590 computer program Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000011217 control strategy Methods 0.000 abstract description 3
- 238000007710 freezing Methods 0.000 description 13
- 230000008014 freezing Effects 0.000 description 13
- 230000004044 response Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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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
- F25D2600/00—Control issues
- F25D2600/02—Timing
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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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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Abstract
The invention discloses a refrigerator refrigeration control method and device and a refrigerator. Wherein, the method comprises the following steps: in the refrigerating process of the refrigerating chamber, determining the longest refrigerating time of the refrigerating chamber according to the temperature rising condition of the uncooled chamber, and determining the required refrigerating time of the refrigerating chamber according to the temperature falling condition of the refrigerating chamber; and controlling the refrigerating chamber to be switched to the uncooled chamber for refrigerating according to the required refrigerating time and the longest refrigerating time. The invention can reasonably distribute the refrigerating time of each chamber based on the combined control strategy of temperature and time-sharing operation, ensures that the temperature of the chamber can be controlled in a reasonable range in the dynamic operation process of the refrigerator, avoids overhigh temperature rise of other uncooled chambers caused by overlong refrigerating operation time of a certain chamber, and enables the refrigerator to operate more intelligently.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to a refrigerator refrigeration control method and device and a refrigerator.
Background
A refrigeration system of a dual cycle refrigerator with parallel evaporators is shown in fig. 1, and includes: the refrigeration system comprises a compressor 1, a condenser 2, a drying filter 3, an electromagnetic valve 4, a refrigeration capillary tube 5, a refrigeration evaporator 6, a freezing capillary tube 7 and a freezing evaporator 8, wherein the evaporators are respectively arranged in the refrigeration chamber and the freezing chamber, the two evaporators are connected to the compressor 1 in parallel, and the refrigeration evaporator 6 or the freezing evaporator 8 is switched through the electromagnetic valve 4 to carry out refrigeration.
The compartment temperature control is realized through the starting point temperature and the stopping point temperature of the compartment, when the compartment temperature is higher than the starting point temperature, the compressor is started to refrigerate until the compartment temperature is lower than the stopping point temperature, and the compressor stops.
The evaporator parallel dual cycle refrigerator cannot simultaneously supply cold to the cold storage compartment and the freezing compartment. For the mode of the prior control of the freezing chamber, if the refrigerator keeps refrigerating the freezing chamber until the temperature of the freezing chamber reaches below the set control temperature, the cold energy can not be obtained in the refrigerating chamber in the period of refrigerating the freezing chamber (for example, more than ten hours), and the temperature can rise very high, which is not beneficial to the preservation of the food in the refrigerating chamber.
Disclosure of Invention
The embodiment of the invention provides a refrigerator refrigeration control method and device and a refrigerator, and aims to at least solve the problem of inaccurate temperature control caused by unreasonable refrigeration time distribution of each chamber of the refrigerator in the prior art.
In order to solve the technical problem, an embodiment of the present invention provides a refrigeration control method for a refrigerator, including:
in the refrigerating process of the refrigerating chamber, determining the longest refrigerating time of the refrigerating chamber according to the temperature rising condition of the uncooled chamber, and determining the required refrigerating time of the refrigerating chamber according to the temperature falling condition of the refrigerating chamber;
and controlling the refrigerating chamber to be switched to the uncooled chamber for refrigerating according to the required refrigerating time and the longest refrigerating time.
Optionally, determining the longest refrigeration time of the refrigeration compartment according to the temperature rise condition of the uncooled compartment includes:
calculating the temperature rise rate of the uncooled compartment within a preset time;
and calculating the time required by the uncooled compartment to be heated from the current temperature to the starting point temperature of the uncooled compartment according to the heating rate, wherein the time is taken as the longest refrigerating time of the refrigerated compartment.
Optionally, determining the required cooling time of the cooling compartment according to the cooling condition of the cooling compartment includes:
calculating the cooling rate of the refrigerating chamber in a preset time;
and calculating the time required by the cooling of the refrigerating chamber from the current temperature to the shutdown point temperature of the refrigerating chamber according to the cooling rate, wherein the time is used as the required refrigerating time of the refrigerating chamber.
Optionally, controlling to switch the refrigerating compartment to the uncooled compartment for refrigeration according to the required refrigeration time and the longest refrigeration time includes:
judging whether the required refrigerating time is less than or equal to the longest refrigerating time;
if the required refrigerating time is less than or equal to the longest refrigerating time, controlling whether the machine is stopped or not according to the refrigerating requirement of the uncooled compartment when the refrigerating time of the refrigerating compartment reaches the required refrigerating time;
if the required refrigeration time is longer than the longest refrigeration time, increasing the rotating speed of a compressor and/or the rotating speed of a fan of the refrigeration compartment according to a preset rule, and re-determining the required refrigeration time and the longest refrigeration time until the required refrigeration time is shorter than or equal to the longest refrigeration time.
Optionally, after increasing the rotational speed of the compressor and/or the rotational speed of the fan of the refrigeration compartment according to a preset rule, the method further includes: if the fans of the compressor and the refrigerating chamber are both increased to the maximum rotating speed, but the required refrigerating time is still longer than the maximum refrigerating time, the refrigerating chamber is switched to the uncooled chamber for refrigerating when the refrigerating time of the refrigerating chamber reaches the maximum refrigerating time.
Optionally, controlling whether to stop the refrigerator according to the refrigeration demand of the uncooled compartment includes:
judging whether the temperature of the uncooled compartment reaches the starting point temperature of the uncooled compartment or not;
if the temperature of the uncooled compartment reaches the starting point temperature of the uncooled compartment, switching to the uncooled compartment for refrigeration;
and if the temperature of the uncooled chamber does not reach the starting point temperature of the uncooled chamber, controlling the compressor and the fan of the refrigeration chamber to stop running.
Optionally, the method further includes:
receiving a compartment refrigeration instruction;
according to the preset corresponding relation among the environment temperature, the chamber and the set gear, the set gear corresponding to the chamber needing to be refrigerated at the current environment temperature is obtained, wherein the set gear comprises a compressor set gear and a fan set gear;
and controlling the compressor and the fan of the compartment needing refrigeration to operate according to the acquired set gear.
The embodiment of the invention also provides a refrigerator refrigeration control device, which comprises:
the determining module is used for determining the longest refrigerating time of the refrigerating chamber according to the temperature rising condition of the uncooled chamber and determining the required refrigerating time of the refrigerating chamber according to the temperature falling condition of the refrigerating chamber in the refrigerating process of the refrigerating chamber;
and the control module is used for controlling the refrigerating chamber to be switched to the uncooled chamber for refrigerating according to the required refrigerating time and the longest refrigerating time.
An embodiment of the present invention further provides a refrigerator, including: the embodiment of the invention relates to a refrigerator refrigeration control device.
An embodiment of the present invention further provides a computer device, including: the device comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program to realize the steps of the method of the embodiment of the invention.
Embodiments of the present invention also provide a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method according to the embodiments of the present invention.
By applying the technical scheme of the invention, in the refrigerating process of the refrigerating chamber, the longest refrigerating time of the refrigerating chamber is determined according to the temperature rising condition of the uncooled chamber, the required refrigerating time of the refrigerating chamber is determined according to the temperature lowering condition of the refrigerating chamber, and then the refrigerating chamber is switched to the uncooled chamber for refrigeration according to the required refrigerating time and the longest refrigerating time. The combined control strategy based on temperature and time-sharing operation can reasonably distribute the refrigerating time of each compartment, ensure that the compartment temperature can be controlled in a reasonable range in the dynamic operation process of the refrigerator, avoid overhigh temperature rise of other uncooled compartments caused by overlong refrigerating operation time of a certain compartment, and ensure that the refrigerator operates more intelligently.
Drawings
FIG. 1 is a schematic diagram of a refrigeration system of a prior art dual cycle refrigerator with parallel evaporators;
fig. 2 is a flowchart of a refrigeration control method for a refrigerator according to an embodiment of the present invention;
fig. 3 is a flow chart of refrigeration control of a refrigerator according to a second embodiment of the present invention;
fig. 4 is a block diagram of a refrigeration control device of a refrigerator according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
Alternative embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Example one
The present embodiment provides a method for controlling refrigeration in a refrigerator, which is applicable to a refrigerator that cannot supply cold to each compartment simultaneously, specifically, each compartment of the refrigerator is provided with a respective evaporator and a blower, and all the evaporators are connected in parallel to a compressor, for example, a dual cycle refrigerator with parallel evaporators as shown in fig. 1.
Fig. 2 is a flowchart of a refrigeration control method for a refrigerator according to an embodiment of the present invention, as shown in fig. 2, the method includes the following steps:
s201, in the refrigerating process of the refrigerating chamber, determining the longest refrigerating time of the refrigerating chamber according to the temperature rising condition of the uncooled chamber, and determining the required refrigerating time of the refrigerating chamber according to the temperature falling condition of the refrigerating chamber.
And S202, controlling the refrigerating chamber to be switched to the uncooled chamber for refrigerating according to the required refrigerating time and the longest refrigerating time.
In step S201, the order of determining the longest refrigeration time and determining the required refrigeration time is not limited, and the two may be performed simultaneously or sequentially, for example, the longest refrigeration time is determined first and then the required refrigeration time is determined, or the required refrigeration time is determined first and then the longest refrigeration time is determined.
The longest refrigerating time is the time for ensuring that the temperature of the uncooled chamber does not rise back to exceed the preset value after the refrigeration of the refrigeration chamber is finished. The required refrigeration time refers to the time required for the refrigeration compartment to cool down to a specified temperature.
When the compartment in the refrigerator is refrigerating, the compressor is in an open state. When the compartment is refrigerated, the fan of the compartment is in an open state; when the compartment is not refrigerated, the fan of the compartment is in a closed state.
In the refrigerating process of the refrigerating chamber, the longest refrigerating time of the refrigerating chamber is determined according to the temperature rising condition of the uncooled chamber, the required refrigerating time of the refrigerating chamber is determined according to the temperature falling condition of the refrigerating chamber, and then the refrigerating chamber is controlled to be switched to the uncooled chamber for refrigerating according to the required refrigerating time and the longest refrigerating time. The combined control strategy based on temperature and time-sharing operation can reasonably distribute the refrigerating time of each compartment, ensure that the compartment temperature can be controlled in a reasonable range in the dynamic operation process of the refrigerator, avoid overhigh temperature rise of other uncooled compartments caused by overlong refrigerating operation time of a certain compartment, and ensure that the refrigerator operates more intelligently.
In one embodiment, the step S201 of determining the maximum cooling time of the cooling compartment according to the uncooled compartment temperature rise condition includes: calculating the temperature rise rate of the uncooled compartment within a preset time; and calculating the time required by the uncooled compartment to be heated from the current temperature to the starting point temperature of the uncooled compartment according to the heating rate, wherein the time is taken as the longest refrigerating time of the refrigerated compartment.
The preset time may be set according to actual conditions, for example, 5 seconds, 10 seconds, 1 minute, and the like. Specifically, the temperature change value of the uncooled compartment within the preset time can be calculated first, and then the temperature change value is calculated to be divided by the preset time, so as to obtain the temperature rise rate. And then calculating the difference value of the starting point temperature of the uncooled chamber minus the current temperature, and dividing the difference value by the heating rate to obtain the longest refrigerating time of the refrigerated chamber.
According to the embodiment, the time required by the uncooled compartment to heat from the current temperature to the starting point temperature of the uncooled compartment is calculated according to the heating rate of the uncooled compartment in the preset time, and the uncooled compartment is taken as the longest refrigerating time of the refrigerated compartment, and the longest refrigerating time is used for participating in the refrigeration control of the refrigerator, so that the situation that the temperature of the uncooled compartment is excessively raised due to the refrigeration of the refrigerated compartment can be avoided.
In one embodiment, the step S201 of determining the required cooling time of the cooling compartment according to the cooling condition of the cooling compartment includes: calculating the cooling rate of the refrigerating chamber in a preset time; and calculating the time required by the cooling of the refrigerating chamber from the current temperature to the shutdown point temperature of the refrigerating chamber according to the cooling rate, wherein the time is used as the required refrigerating time of the refrigerating chamber.
Specifically, the temperature change value of the refrigerating chamber in the preset time can be calculated first, and then the temperature change value is calculated to be divided by the preset time, so that the cooling rate is obtained. And then calculating the difference between the current temperature of the refrigerating chamber and the temperature of the stop point of the refrigerating chamber, and dividing the difference by the cooling rate to obtain the required refrigerating time of the refrigerating chamber.
According to the method and the device, the time required by the cooling chamber to cool from the current temperature to the shutdown point temperature of the cooling chamber is calculated according to the cooling rate of the cooling chamber in the preset time and is used as the required cooling time of the cooling chamber, the required cooling time is used for participating in the refrigeration control of the refrigerator, and the situation that the temperature of the uncooled chamber is excessively increased due to the cooling of the cooling chamber can be avoided under the condition that the refrigeration requirement of the cooling chamber is met as much as possible.
It should be noted that the required cooling time and the maximum cooling time may be calculated periodically at a certain time interval, or may be calculated by triggering a specified operation, such as a compartment door opening operation, a fan rotation speed adjustment operation, or a compressor rotation speed adjustment operation, in response to the specified operation.
In one embodiment, the step S202 of controlling the refrigeration compartment to be switched to the uncooled compartment for refrigeration according to the required refrigeration time and the maximum refrigeration time includes:
judging whether the required refrigerating time is less than or equal to the longest refrigerating time;
if the required refrigeration time is less than or equal to the longest refrigeration time, controlling whether the machine is stopped according to the refrigeration requirement of the uncooled chamber when the refrigeration time of the refrigeration chamber reaches the required refrigeration time;
and if the required refrigeration time is longer than the longest refrigeration time, increasing the rotating speed of the compressor and/or the rotating speed of the fan of the refrigeration chamber according to a preset rule, and re-determining the required refrigeration time and the longest refrigeration time until the required refrigeration time is less than or equal to the longest refrigeration time.
The required refrigeration time is less than or equal to the longest refrigeration time, which means that the refrigeration chamber can finish refrigeration before the uncooled chamber is heated to the starting point temperature of the uncooled chamber, namely, the refrigeration chamber can normally refrigerate according to the required refrigeration time, and the temperature of the uncooled chamber cannot be raised too high. In this case, when the cooling compartment completes cooling, the blower of the compartment is turned off. Whether the compressor is shut down depends on whether there is a need for cooling in the other compartments.
The required refrigeration time is longer than the longest refrigeration time, which means that if the refrigeration chamber completes refrigeration normally according to the required refrigeration time, the temperature of the uncooled chamber rises back to be too high. In this case, the cooling of the cooling compartment can be accelerated by increasing the rotational speed of the compressor and/or the rotational speed of the fan of the cooling compartment.
The preset rule refers to a rule for adjusting the rotating speed of the compressor and the rotating speed of the fan, and the preset rule may include: adjustment order and adjustment amplitude, etc. The preset rule is not particularly limited in this embodiment as long as the rotation speed adjustment can be achieved. For example, the adjustment range of each time may be to increase the first gear of rotation speed, increase the primary fan rotation speed, re-determine the required refrigeration time and the longest refrigeration time, increase the primary compressor rotation speed again if the required refrigeration time is not yet less than or equal to the longest refrigeration time, re-determine the required refrigeration time and the longest refrigeration time, return to continuously increase the fan rotation speed if the required refrigeration time is not yet less than or equal to the longest refrigeration time, and cycle through this until the required refrigeration time is less than or equal to the longest refrigeration time or both the compressor and the fan increase to the maximum rotation speed. For another example, on the basis of the above example, the sequence is changed, that is, the rotation speed of the primary compressor is increased first, if the required refrigeration time is not yet met, the rotation speed of the primary fan is increased, and if the required refrigeration time is not yet met, the rotation speed of the primary fan is returned to be increased continuously, and the cycle is repeated until the required refrigeration time is met, the maximum refrigeration time is less than or equal to the required refrigeration time, or the rotation speeds of the compressor and the fan are increased to the maximum rotation speed. For another example, the rotation speed of the fan may be increased first, and after the fan is increased to the maximum rotation speed, if the required refrigeration time is not met, the rotation speed of the compressor is increased, and the two operations may be switched.
According to the embodiment, measures can be taken in time to adjust the required refrigerating time according to the size relation between the required refrigerating time and the longest refrigerating time, so that the refrigerating time of each chamber is more reasonably distributed, the temperature of the chambers can be controlled within a reasonable range in the dynamic operation process of the refrigerator, the phenomenon that the temperature of other uncooled chambers rises too high due to overlong refrigerating operation time of one chamber is avoided, and the operation of the refrigerator is more intelligent.
Further, after increasing the rotational speed of the compressor and/or the rotational speed of the fan of the refrigeration compartment according to a preset rule, the method further comprises the following steps: if the fans of the compressor and the refrigeration chamber are increased to the maximum rotating speed, but the required refrigeration time is still longer than the longest refrigeration time, the fans of the compressor and the refrigeration chamber are kept running at the maximum rotating speed, and when the refrigeration time of the refrigeration chamber reaches the maximum refrigeration time, the refrigeration chamber is switched to the non-refrigeration chamber for refrigeration.
In the embodiment, under the condition that the fans of the compressor and the refrigerating chamber are increased to the maximum rotating speed, when the refrigerating chamber runs to the maximum refrigerating time, the refrigerating chamber is switched to the uncooled chamber to refrigerate in time, and the situation that the temperature of other uncooled chambers rises too high due to too long refrigerating running time of the chamber can be avoided, so that the refrigerator runs more intelligently.
Further, whether the machine is stopped or not is controlled according to the refrigeration demand of the uncooled compartment, and the method comprises the following steps: judging whether the temperature of the uncooled compartment reaches the starting point temperature of the uncooled compartment or not; if the temperature of the uncooled compartment reaches the starting point temperature of the uncooled compartment, which indicates that the uncooled compartment has a refrigeration demand, switching to the uncooled compartment for refrigeration, specifically, continuing to operate the compressor, turning off the fan of the refrigerated compartment, and turning on the fan of the uncooled compartment to realize refrigeration switching; if the temperature of the uncooled compartment does not reach the starting point temperature of the uncooled compartment, the uncooled compartment has no refrigeration requirement, namely all compartments do not need to be refrigerated, and the compressor and the fans of the refrigerated compartments are controlled to stop running at the moment so as to stop the machine. This embodiment can guarantee in time to carry out refrigeration switching or shut down.
In one embodiment, the method may further include: receiving a compartment refrigeration instruction; according to the preset corresponding relation between the environmental temperature and the chamber and the set gear, acquiring the set gear corresponding to the chamber needing to be refrigerated at the current environmental temperature, wherein the set gear comprises a compressor set gear and a fan set gear; and controlling the compressor and the fan of the compartment needing refrigeration to operate according to the acquired set gear.
Wherein the compartment cooling command is used for instructing the compartment to start cooling. The compressor can be provided with at least two rotating speed gears, and different rotating speeds of the compressor correspond to different refrigerating capacities. The fan can set up two at least rotational speed gears, and different fan rotational speeds correspond different amount of wind.
Under different ambient temperatures, the rotating speed requirements of the compressor and the fan in the same compartment are different. Under the same environment temperature, the rotating speed requirements of different chambers on the compressor and the fan are different. Therefore, in the present embodiment, the correspondence relationship between the environmental temperature, the compartment, and the set gear is set in advance through experiments. The compartment and the set gear corresponding to the ambient temperature refer to the optimal initial operation gear of the compartment at the ambient temperature.
When the compressor is switched to another compartment for cooling from one compartment, namely the compressor is in an open state, the compressor needs to be controlled to operate according to a set gear of the compressor corresponding to the other compartment.
When the compartment starts to refrigerate, the set gear corresponding to the compartment is determined according to the current environment temperature, so that the compressor and the fan are controlled to operate at a proper gear, the refrigeration efficiency is improved, and the energy efficiency is ensured.
Example two
The refrigeration control method of the refrigerator is described below with reference to a specific embodiment, however, it should be noted that the specific embodiment is only for better describing the present application and is not to be construed as a limitation to the present application. The same or corresponding terms as those of the above-described embodiments are explained, and the description of the present embodiment is omitted.
As shown in fig. 3, taking the refrigerator including the refrigerating compartment and the freezing compartment as an example, the control flow includes the following steps:
and S301, starting.
S302, when a compartment (which may be a refrigerating compartment or a freezing compartment) reaches its starting point temperature, a refrigeration cycle of the compartment is started, and the compressor and the fan of the compartment operate according to a set gear corresponding to the compartment at the current ambient temperature (described later). This compartment is referred to as a refrigeration compartment.
S303, acquiring the actual temperature K of the refrigerating chamber, and synchronously recording the actual refrigerating time T of the refrigerating chamber.
S304, calculating the temperature rise rate of the other compartment (namely the uncooled compartment) in the delta T, and calculating the time required by the other compartment to rise from the current temperature to the starting point temperature of the other compartment according to the starting point temperature of the other compartment and the current temperature of the other compartment, wherein the time is recorded as the longest refrigerating time T-M of the refrigerated compartment.
S305, calculating the cooling rate of the refrigerating chamber in delta T, and calculating the time required by the refrigerating chamber to cool from the current temperature to the shutdown point temperature of the refrigerating chamber according to the shutdown point temperature of the refrigerating chamber and the current temperature of the refrigerating chamber, wherein the time is recorded as the required refrigerating time T-X of the refrigerating chamber.
S306, judging whether T-X is less than or equal to T-M, if so, carrying out S307; if not, proceed to S309.
S307, when the actual cooling time period T of the cooling compartment is equal to T-X, determining whether another compartment reaches its starting point temperature, if so, returning to S302, and starting cooling the other compartment, that is, taking the other compartment as the cooling compartment; if not, go to S308. The actual cooling time period may be calculated from the time when the required cooling time and the maximum cooling time are calculated.
And S308, stopping, namely stopping the operation of the compressor and the fan of the compartment.
S309, increasing the fan rotating speed of the refrigerating chamber, and then performing S310.
S310, judging whether T-X is less than or equal to T-M, if so, carrying out S307; if not, proceed to S311.
S311, the compressor rotation speed is increased, and then S312 is performed.
S312, judging whether T-X is less than or equal to T-M, if so, carrying out S307; if not, proceed to S313.
S313, judging whether the compressor and the fan are both at the maximum rotating speed, and if so, performing S314; if not, return is made to S309.
And S314, the maximum rotating speed is kept to operate, when the actual refrigerating time length T of the refrigerating chamber is equal to T-M, the refrigerating system is switched to the other chamber for refrigerating, and the operation returns to S303.
The relationship between the rotating speed of the compressor and the corresponding refrigerating capacity thereof, and the rotating speed of the fan and the corresponding air volume thereof is shown in tables 1 and 2 below.
TABLE 1 corresponding relationship table of compressor rotation speed and refrigerating capacity
TABLE 2 Fan speed and air quantity corresponding relation table
In this embodiment, for the refrigeration system with two evaporators connected in parallel, because the refrigerating capacity requirements of the refrigerating chamber and the freezing chamber are different, the gear settings of the rotating speeds of the compressor and the fan are different when the refrigerating chamber is started to operate and when the freezing chamber is started to operate. For example, when the refrigerator operates at the environment temperature of more than or equal to 27 ℃ and t less than 34 ℃, if the refrigerating chamber has a refrigerating requirement, the compressor starts to operate at the S3 gear, and the fan starts to operate at the S2 gear; if the refrigerating chamber has a refrigerating requirement, the compressor starts to operate at the S4 gear, and the fan is started to operate at the S3 gear. The specific gear settings are shown in table 3.
TABLE 3 initial setting gear setting table for compressor and blower fan of each chamber under different ambient temperatures
The embodiment determines the longest refrigerating time, compares the time required by the refrigerating chamber to reach the shutdown point with the longest refrigerating time, and adjusts the rotating speeds of the compressor and the chamber fan to perform refrigerating switching control.
EXAMPLE III
Based on the same inventive concept, the embodiment provides a refrigerator refrigeration control device, which can be used for implementing the refrigerator refrigeration control method described in the embodiment. The device may be implemented by software and/or hardware, and the device may be generally integrated into a controller of the refrigerator.
Fig. 4 is a block diagram of a refrigeration control device of a refrigerator according to a third embodiment of the present invention, and as shown in fig. 4, the device includes:
the determining module 41 is configured to determine the longest refrigeration time of the refrigeration compartment according to a temperature rise condition of an uncooled compartment and determine a required refrigeration time of the refrigeration compartment according to a temperature drop condition of the refrigeration compartment in a refrigeration process of the refrigeration compartment;
and the control module 42 is configured to control the refrigeration compartment to be switched to the uncooled compartment for refrigeration according to the required refrigeration time and the longest refrigeration time.
Optionally, the determining module 41 includes:
the first calculating unit is used for calculating the temperature rising rate of the uncooled compartment within preset time;
and the second calculating unit is used for calculating the time required by the uncooled compartment for heating from the current temperature to the starting point temperature of the uncooled compartment according to the heating rate, and the time is used as the longest refrigerating time of the refrigerating compartment.
Optionally, the determining module 41 includes:
the third calculating unit is used for calculating the cooling rate of the refrigerating chamber in a preset time;
and the fourth calculating unit is used for calculating the time required by the cooling of the refrigerating chamber from the current temperature to the shutdown point temperature of the refrigerating chamber according to the cooling rate, and the time is used as the required refrigerating time of the refrigerating chamber.
Optionally, the control module 42 includes:
the judging unit is used for judging whether the required refrigerating time is less than or equal to the longest refrigerating time;
the first control unit is used for controlling whether the machine is stopped or not according to the refrigeration requirement of the uncooled compartment when the refrigeration time of the refrigeration compartment reaches the required refrigeration time if the required refrigeration time is less than or equal to the longest refrigeration time;
and the second control unit is used for increasing the rotating speed of a compressor and/or the rotating speed of a fan of the refrigerating compartment according to a preset rule if the required refrigerating time is longer than the longest refrigerating time, and re-determining the required refrigerating time and the longest refrigerating time until the required refrigerating time is shorter than or equal to the longest refrigerating time.
Optionally, the second control unit is further configured to: if the fans of the compressor and the refrigerating chamber are both increased to the maximum rotating speed, but the required refrigerating time is still longer than the maximum refrigerating time, the refrigerating chamber is switched to the uncooled chamber for refrigerating when the refrigerating time of the refrigerating chamber reaches the maximum refrigerating time.
Optionally, the first control unit includes:
the judging subunit is used for judging whether the temperature of the uncooled chamber reaches the starting point temperature of the uncooled chamber;
the first control subunit is used for switching to the uncooled compartment for refrigeration if the temperature of the uncooled compartment reaches the starting point temperature of the uncooled compartment;
and the second control subunit is used for controlling the compressor and the fan of the refrigeration chamber to stop running if the temperature of the uncooled chamber does not reach the starting point temperature of the uncooled chamber.
Optionally, the apparatus further comprises:
the receiving module is used for receiving a compartment refrigeration instruction;
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring a set gear corresponding to a chamber needing to be refrigerated at the current ambient temperature according to the corresponding relation between the preset ambient temperature and the set gear, and the set gear comprises a compressor set gear and a fan set gear;
and the operation control module is used for controlling the operation of the compressor and the fan of the compartment needing refrigeration according to the acquired set gear.
The device can execute the method provided by the embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the method provided by the embodiment of the present invention.
Example four
The embodiment provides a refrigerator, including: the refrigeration control device of the refrigerator in the embodiment.
EXAMPLE five
The present embodiment provides a computer device, including: the system comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program to realize the steps of the method of the embodiment.
EXAMPLE six
The present embodiment provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of the above-described embodiment.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (11)
1. A refrigeration control method of a refrigerator is characterized by comprising the following steps:
in the refrigerating process of the refrigerating chamber, determining the longest refrigerating time of the refrigerating chamber according to the temperature rising condition of the uncooled chamber, and determining the required refrigerating time of the refrigerating chamber according to the temperature falling condition of the refrigerating chamber;
and controlling the refrigerating chamber to be switched to the uncooled chamber for refrigerating according to the required refrigerating time and the longest refrigerating time.
2. The method of claim 1, wherein determining the maximum cooling time for the refrigerated compartment based on an uncooled compartment warm-up comprises:
calculating the temperature rise rate of the uncooled compartment within a preset time;
and calculating the time required by the uncooled compartment to be heated from the current temperature to the starting point temperature of the uncooled compartment according to the heating rate, wherein the time is taken as the longest refrigerating time of the refrigerated compartment.
3. The method of claim 1, wherein determining the required cooling time for the refrigeration compartment based on a cooling condition of the refrigeration compartment comprises:
calculating the cooling rate of the refrigerating chamber in a preset time;
and calculating the time required by the cooling of the refrigerating chamber from the current temperature to the shutdown point temperature of the refrigerating chamber according to the cooling rate, wherein the time is used as the required refrigerating time of the refrigerating chamber.
4. The method of claim 1, wherein controlling the switching from the refrigerated compartment to the uncooled compartment for refrigeration based on the required refrigeration time and the maximum refrigeration time comprises:
judging whether the required refrigerating time is less than or equal to the longest refrigerating time;
if the required refrigerating time is less than or equal to the longest refrigerating time, controlling whether the machine is stopped or not according to the refrigerating requirement of the uncooled compartment when the refrigerating time of the refrigerating compartment reaches the required refrigerating time;
if the required refrigeration time is longer than the longest refrigeration time, increasing the rotating speed of a compressor and/or the rotating speed of a fan of the refrigeration compartment according to a preset rule, and re-determining the required refrigeration time and the longest refrigeration time until the required refrigeration time is shorter than or equal to the longest refrigeration time.
5. The method of claim 4, further comprising, after increasing the compressor speed and/or the fan speed of the refrigeration compartment according to a preset rule:
if the fans of the compressor and the refrigerating chamber are both increased to the maximum rotating speed, but the required refrigerating time is still longer than the maximum refrigerating time, the refrigerating chamber is switched to the uncooled chamber for refrigerating when the refrigerating time of the refrigerating chamber reaches the maximum refrigerating time.
6. The method of claim 4, wherein controlling whether to shut down based on the refrigeration demand of the uncooled compartment comprises:
judging whether the temperature of the uncooled compartment reaches the starting point temperature of the uncooled compartment or not;
if the temperature of the uncooled compartment reaches the starting point temperature of the uncooled compartment, switching to the uncooled compartment for refrigeration;
and if the temperature of the uncooled chamber does not reach the starting point temperature of the uncooled chamber, controlling the compressor and the fan of the refrigeration chamber to stop running.
7. The method of any one of claims 1 to 6, further comprising:
receiving a compartment refrigeration instruction;
according to the preset corresponding relation among the environment temperature, the chamber and the set gear, the set gear corresponding to the chamber needing to be refrigerated at the current environment temperature is obtained, wherein the set gear comprises a compressor set gear and a fan set gear;
and controlling the compressor and the fan of the compartment needing refrigeration to operate according to the acquired set gear.
8. A refrigeration control device of a refrigerator is characterized by comprising:
the determining module is used for determining the longest refrigerating time of the refrigerating chamber according to the temperature rising condition of the uncooled chamber and determining the required refrigerating time of the refrigerating chamber according to the temperature falling condition of the refrigerating chamber in the refrigerating process of the refrigerating chamber;
and the control module is used for controlling the refrigerating chamber to be switched to the uncooled chamber for refrigerating according to the required refrigerating time and the longest refrigerating time.
9. A refrigerator, characterized by comprising: the refrigeration control device of claim 8.
10. A computer device, comprising: memory, processor and computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1 to 7 when executing the computer program.
11. A non-transitory computer readable storage medium, having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the method of any of claims 1 to 7.
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| CN202111102073.8A CN113834276B (en) | 2021-09-18 | 2021-09-18 | Refrigerator refrigeration control method and device and refrigerator |
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| US20130305755A1 (en) * | 2012-05-21 | 2013-11-21 | Whirlpool Corporation | Synchronous compartment temperature control and apparatus for refrigeration with reduced energy consumption |
| CN105737510A (en) * | 2016-04-20 | 2016-07-06 | 合肥美的电冰箱有限公司 | Control method and system of refrigerator as well as refrigerator with system |
| CN110953784A (en) * | 2018-09-26 | 2020-04-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor control method and device and readable storage medium |
| CN112361700A (en) * | 2020-11-10 | 2021-02-12 | 长虹美菱股份有限公司 | Refrigerator refrigeration control method and device |
| CN112747560A (en) * | 2021-01-06 | 2021-05-04 | 武汉碗上好科技有限公司 | Refrigerator compartment conversion control method and refrigerator |
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| US20130305755A1 (en) * | 2012-05-21 | 2013-11-21 | Whirlpool Corporation | Synchronous compartment temperature control and apparatus for refrigeration with reduced energy consumption |
| CN105737510A (en) * | 2016-04-20 | 2016-07-06 | 合肥美的电冰箱有限公司 | Control method and system of refrigerator as well as refrigerator with system |
| CN110953784A (en) * | 2018-09-26 | 2020-04-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor control method and device and readable storage medium |
| CN112361700A (en) * | 2020-11-10 | 2021-02-12 | 长虹美菱股份有限公司 | Refrigerator refrigeration control method and device |
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