CN113776264A - Refrigerator compartment temperature control method and device and refrigerator - Google Patents
Refrigerator compartment temperature control method and device and refrigerator Download PDFInfo
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- CN113776264A CN113776264A CN202110989904.1A CN202110989904A CN113776264A CN 113776264 A CN113776264 A CN 113776264A CN 202110989904 A CN202110989904 A CN 202110989904A CN 113776264 A CN113776264 A CN 113776264A
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- 238000000034 method Methods 0.000 title claims abstract description 58
- 230000009471 action Effects 0.000 claims abstract description 26
- 238000010257 thawing Methods 0.000 claims description 63
- 238000005057 refrigeration Methods 0.000 claims description 14
- 238000004590 computer program Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 238000007710 freezing Methods 0.000 abstract description 23
- 230000008014 freezing Effects 0.000 abstract description 23
- 230000008569 process Effects 0.000 description 11
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
- F25D21/008—Defroster control by timer
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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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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a refrigerator compartment temperature control method and device and a refrigerator. Wherein, the method comprises the following steps: detecting a compartment sensor failure; acquiring operation information of a load corresponding to the compartment sensor within a preset time before the compartment sensor fails; and controlling the load action according to the running information in the preset time length. According to the invention, the action of the corresponding load after the compartment sensor fails is reasonably controlled according to the load operation information within the preset time before the compartment sensor fails, the compartment temperature can be effectively kept stable when the refrigerator sensor fails, and the reliability of the refrigerator in freezing and refreshing is improved.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to a refrigerator room temperature control method and device and a refrigerator.
Background
At present, when a compartment sensor of a refrigerator has a fault, the refrigerator generally operates according to control logic for turning on and off a compressor at regular time, for example: and (3) a freezing chamber sensor is failed, the compressor is stopped for 10 minutes, then is started for 30 minutes and is closed for 20 minutes, and then the refrigerating operation is circulated according to the conditions of starting for 30 minutes and closing for 20 minutes.
However, the actual use condition of the user is not considered by the control logic, the temperature fluctuation of the room is large, the preservation effect is not good, and the damage of food can be caused to cause customer complaints.
Disclosure of Invention
The embodiment of the invention provides a refrigerator compartment temperature control method and device and a refrigerator, and at least solves the problem of unstable compartment temperature caused by the fault of a compartment sensor in the prior art.
In order to solve the above technical problem, an embodiment of the present invention provides a method for controlling a temperature of a refrigerator compartment, including: detecting a compartment sensor failure; acquiring operation information of a load corresponding to the compartment sensor within a preset time before the compartment sensor fails; and controlling the load action according to the running information in the preset time length.
Optionally, controlling the load action according to the operation information within the preset time duration includes: determining a target operation parameter value of the load according to the operation information in the preset time length; and controlling the load to circularly operate according to the target operation parameter value.
Optionally, the number of the loads corresponding to the compartment sensor is at least one; the operation information in the preset time length at least comprises: at least one on-time and at least one off-time for each load; determining a target operation parameter value of the load according to the operation information in the preset time length, wherein the method comprises the following steps: and calculating all the opening durations of the load in the operation information in the preset duration according to a first preset rule to obtain the target opening duration of the load, and calculating all the closing durations of the load in the operation information in the preset duration according to the first preset rule to obtain the target closing duration of the load.
Optionally, the operation information within the preset duration further includes: a rotational speed gear when the load is in an on state; determining a target operation parameter value of the load according to the operation information in the preset time length, further comprising: determining a rotation speed gear of the load when the load is started for the last time in the running information within the preset time length as a target rotation speed gear of the load; or calculating all the rotating speed gears of the load in the running information within the preset time according to a second preset rule to obtain the target rotating speed gear of the load.
Optionally, before determining the target operation parameter value of the load according to the operation information within the preset time period, the method further includes: judging whether the running information in the preset time length contains information of first opening and closing of the load after the refrigerator is powered on; and if so, removing the information of the first opening and closing of the load after the refrigerator is electrified from the operation information in the preset time length.
Optionally, controlling the load to circularly operate according to the target operation parameter value includes:
if the load corresponding to the compartment sensor comprises a compressor, controlling the compressor to circularly operate according to the target opening duration and the target closing duration of the compressor, and controlling the compressor to operate according to the target rotating speed gear of the compressor in an opening state;
if the load corresponding to the compartment sensor comprises a fan, controlling the fan to operate circularly according to the target opening time and the target closing time of the fan, and controlling the fan to operate according to the target rotating speed gear of the fan in an opening state;
and if the load corresponding to the compartment sensor comprises a compartment air door, controlling the compartment air door to circularly act according to the target opening time and the target closing time of the compartment air door.
Optionally, after obtaining operation information of the load corresponding to the compartment sensor within a preset time before the compartment sensor fails, the method further includes: and if all recorded operation information before the compartment sensor fails to reach the preset time length, or the working conditions corresponding to the operation information within the preset time length are not all the same as the working conditions at the compartment sensor failure moment, controlling the load action according to preset operation parameter values.
Optionally, the method further includes: detecting a defrosting temperature sensor fault; if defrosting is carried out before the defrosting temperature sensor fails, controlling the heater to work according to the working time of the heater during last defrosting when a defrosting condition is met; and if the defrosting is not carried out before the fault of the defrosting temperature sensor, controlling the heater to work according to preset heating time when the defrosting condition is met.
Optionally, the method further includes: during the operation of the refrigerator, the operation information of all the loads under the condition that the corresponding compartment sensors are not in fault is continuously recorded.
Optionally, the preset duration is: the time length corresponding to the preset times of opening and closing the load or the time length corresponding to the preset number of refrigeration defrosting cycles.
The embodiment of the invention also provides a temperature control device for the refrigerator compartment, which comprises: the detection module is used for detecting the compartment sensor fault; the acquisition module is used for acquiring the operation information of the load corresponding to the compartment sensor within a preset time length before the compartment sensor fails; and the control module is used for controlling the load action according to the running information in the preset time length.
An embodiment of the present invention further provides a refrigerator, including: the embodiment of the invention relates to a temperature control device for a refrigerator compartment.
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, the fault of the compartment sensor is detected, the operation information of the load corresponding to the compartment sensor within the preset time before the fault of the compartment sensor is acquired, and the corresponding load action is controlled according to the acquired operation information. According to the load operation information within the preset time before the compartment sensor fails, the action of the corresponding load after the compartment sensor fails is reasonably controlled, the compartment temperature can be effectively kept stable when the refrigerator sensor fails, and the reliability of the refrigerator in freezing and refreshing is improved.
Drawings
Fig. 1 is a flowchart of a method for controlling a temperature of a refrigerator compartment according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a control of the temperature of the refrigerator compartment according to a second embodiment of the present invention;
fig. 3 is a block diagram of a temperature control device for a refrigerator compartment 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.
Example one
Fig. 1 is a flowchart of a method for controlling a temperature of a refrigerator compartment according to an embodiment of the present invention, as shown in fig. 1, the method includes the following steps:
s101, compartment sensor faults are detected.
And S102, acquiring the operation information of the load corresponding to the compartment sensor within a preset time before the compartment sensor fails.
And S103, controlling load action according to the running information in the preset time length.
The compartment sensor may have faults such as short circuit, open circuit, and device damage, and in case of a fault, the value output by the compartment sensor is in an abnormal range, so that whether the compartment sensor has a fault can be determined according to the value output by the compartment sensor. It is understood that other existing methods may be used to detect whether the compartment sensor is malfunctioning, and this embodiment is not limited and described in detail herein.
Refrigerators generally include compartments that are at least one of: a freezing chamber, a refrigerating chamber and a temperature changing chamber. Each compartment may be provided with a compartment sensor, for example, a compartment temperature sensor for detecting the temperature of the compartment, although a compartment humidity sensor may also be provided in the compartment. The load of the refrigerator generally includes: compressor, fan and compartment air door.
The compartment sensor and the load have a corresponding relationship, that is, the value monitored by the compartment sensor is used for participating in the operation control of the corresponding load. The corresponding relation depends on the specific situation of the refrigerator, for example, the refrigerator a comprises a freezing chamber and a refrigerating chamber, the refrigerating chamber is provided with an air door, the freezing chamber is not provided with the air door, the operation of the compressor is controlled according to the refrigerating requirement of the freezing chamber, the air door of the refrigerating chamber is controlled according to the refrigerating requirement of the refrigerating chamber, and the fan and the compressor are synchronously controlled (namely the compressor is started, the fan is started, the compressor is closed, and the fan is closed), so that the load corresponding to the refrigerating chamber sensor of the refrigerator a is the refrigerating chamber air door, and the load corresponding to the freezing chamber sensor of the refrigerator a is the compressor and the fan. For another example, the refrigerator B includes a freezing compartment, a refrigerating compartment and a temperature-changing compartment, each compartment is provided with an air door, any compartment has a refrigeration demand and then opens the compressor, the opening and closing of the air door of each compartment is controlled according to the refrigeration demand of each compartment, the fan and the compressor are synchronously controlled, and therefore, the load corresponding to the freezing compartment sensor of the refrigerator B includes: compressor, fan and freezing room air door, the load that cold-stored room sensor corresponds includes: compressor, fan and cold-stored compartment air door, the load that the alternating temperature compartment sensor corresponds includes: compressor, fan and alternating temperature compartment air door. For another example, the refrigerator C includes only the freezing compartment, the freezing compartment is not provided with a damper, the compressor is controlled to be turned on if the freezing compartment has a refrigeration requirement, and the fan and the compressor are synchronously controlled, so that the load corresponding to the freezing compartment sensor of the refrigerator C includes: a compressor and a fan. The load corresponding to the malfunctioning compartment sensor comprises at least one of: compressor, fan and compartment air door.
The operation information of the load can reflect the opening and closing conditions of the load. The operation information of the load at least includes: the on-time and off-time of the load. If the load relates to the rotating speed (such as a compressor and a fan), the operation information of the load not only comprises the opening time length and the closing time length of the load, but also comprises the rotating speed gear when the load is in an opening state.
In the running process of the refrigerator, the running information of all the loads under the condition that the corresponding compartment sensors have no faults can be continuously recorded, so that the load action can be controlled according to the recorded running information when the compartment sensors have faults.
According to the method for controlling the temperature of the refrigerator compartment, the compartment sensor is detected to be in fault, the operation information of the load corresponding to the compartment sensor within the preset time before the compartment sensor is in fault is acquired, and the corresponding load action is controlled according to the acquired operation information. According to the load operation information within the preset time before the compartment sensor fails, the action of the corresponding load after the compartment sensor fails is reasonably controlled, the compartment temperature can be effectively kept stable when the refrigerator sensor fails, and the reliability of the refrigerator in freezing and refreshing is improved.
The preset duration is a preset range for acquiring the load operation information under the condition of the compartment sensor failure, that is, the preset duration determines how much operation information is acquired from the recorded load operation information to serve as a load control basis after the sensor failure. The acquired operation information within the preset time is preferably operation information in the refrigerating operation process of the refrigerator.
The preset duration may be: the time length corresponding to the preset times of opening and closing the load or the time length corresponding to the preset number of refrigeration defrosting cycles.
The preset number of times is greater than or equal to 2, for example, the operation information of the load opening and closing for 3 times before the compartment sensor fails is obtained, that is, the operation information within the preset time length includes: 3 on-times and 3 off-times of the load before the compartment sensor fails. The preset number is more than or equal to 1, one refrigeration defrosting cycle refers to that the refrigerator performs refrigeration and then performs primary defrosting, and in one refrigeration defrosting cycle, the load is opened at least once and closed at least once.
Load operation information within a preset time length before the compartment sensor fails is obtained, the obtained information can reflect the load on-off control condition of the refrigerator in a stable state before the compartment sensor fails, and reliable control over the load under the condition that the compartment sensor fails can be guaranteed based on the obtained information.
In one embodiment, the controlling the load action according to the running information within the preset time period comprises: determining a target operation parameter value of the load according to the operation information in the preset time length; and controlling the load to circularly operate according to the target operation parameter value until the compartment sensor returns to be normal.
Wherein, corresponding to the operation information of the load, the target operation parameter value of the load at least comprises: a target on-time and a target off-time for the load. If the load is related to rotational speeds (e.g., compressor and fan), the target operating parameter value for the load includes not only the target on-time and target off-time for the load, but also the target speed gear for the load.
According to the method and the device, the target operation parameter value of the load is determined according to the operation information within the preset time length, the load is controlled to circularly operate according to the target operation parameter value until the compartment sensor is recovered to be normal, and the relevant load is effectively and reasonably controlled when the refrigerator sensor fails, so that the compartment temperature is effectively kept stable, and the refrigerator control reliability is improved.
The number of the loads corresponding to the compartment sensor is at least one, and for each load, a target operation parameter value of the load is determined according to operation information of the load within a preset time length before the compartment sensor fails. The operation information in the preset time length at least comprises: the on-duration of at least one and the off-duration of at least one for each load.
Specifically, determining a target operation parameter value of the load according to the operation information within the preset time period includes: for each load, calculating all opening durations of the load in the operation information within the preset duration according to a first preset rule to obtain a target opening duration of the load, and calculating all closing durations of the load in the operation information within the preset duration according to the first preset rule to obtain a target closing duration of the load.
The first preset rule is a rule for calculating the opening and closing time length of the load target. If the operation information in the preset time length only comprises one-time opening time length and one-time closing time length of the load a, directly adopting the opening time length as a target opening time length of the load a and directly adopting the closing time length as a target closing time length of the load a according to a first preset rule; if the operation information in the preset time length comprises two or more opening time lengths and two or more closing time lengths of the load a, according to a first preset rule, the target opening time length and the target closing time length can be obtained by respectively calculating in a mode of calculating an average value or a median and the like, so that the influence of factors such as door opening and the like on the opening and closing of the load is eliminated, and the reasonable and reliable target operation parameter values are ensured.
According to the method and the device, the target opening time and the target closing time of the load are calculated according to the operation information in the preset time, so that the opening and closing of the load can be effectively and reasonably controlled, and the stability of the temperature of the compartment is ensured.
Further, for the load related to the rotation speed, the operation information within the preset time period may further include: the speed gear when the load is in the open state. Correspondingly, determining a target operation parameter value of the load according to the operation information in the preset time length, further comprising: determining a rotating speed gear of the load when the load is started for the last time in the running information within a preset time length as a target rotating speed gear of the load; or calculating all the rotating speed gears of the load in the running information within the preset duration according to a second preset rule to obtain the target rotating speed gear of the load.
Wherein the second preset rule is a rule for calculating the load target rotation speed gear. Similar to the first preset rule, if the operation information in the preset duration only includes the primary speed gear of the load a, directly adopting the speed gear as the target speed gear of the load a according to the second preset rule; if the operation information within the preset time length comprises two or more than two rotating speed gears of the load a, according to a second preset rule, the target rotating speed gears can be obtained by respectively calculating in a mode of calculating an average value or a middle value and the like, so that the influence of factors such as door opening and the like on the opening and closing of the load is eliminated, and the target rotating speed gears are ensured to be reasonable and reliable.
According to the embodiment, the target rotating speed gear of the load is determined according to the running information within the preset time, so that the rotating speed gear of the load can be effectively and reasonably controlled, and the stability of the temperature of the compartment is ensured.
After the refrigerator is electrified for the first time, the temperature of each compartment does not reach a shutdown point, and the refrigeration needs time, so that the time length of the first opening of the load after the refrigerator is electrified is longer, the refrigerator reaches a stable state, and the subsequent opening and closing time lengths of the loads are basically consistent if the working condition is not changed. Therefore, before determining the target operation parameter value of the load according to the operation information within the preset time period, the method may further include: judging whether the running information in the preset time length contains information of first opening and closing of the load after the refrigerator is powered on; if so, information of first opening and closing of the load after the refrigerator is powered on is removed from the operation information in the preset time length. According to the method and the device, the information of the first opening and closing of the load after the refrigerator is powered on is removed from the running information within the preset time length, so that the information according to the determined target running parameter value is more referential, and the reliable control of the load is facilitated.
In one embodiment, controlling the load to cyclically operate according to the target operating parameter value comprises:
if the load corresponding to the compartment sensor comprises a compressor, controlling the compressor to circularly operate according to the target opening duration and the target closing duration of the compressor, and controlling the compressor to operate according to the target rotating speed gear of the compressor in an opening state;
if the load corresponding to the compartment sensor comprises the fan, controlling the fan to operate circularly according to the target opening time and the target closing time of the fan, and controlling the fan to operate according to the target rotating speed gear of the fan in an opening state;
and if the load corresponding to the compartment sensor comprises a compartment air door, controlling the compartment air door to circularly act according to the target opening time and the target closing time of the compartment air door.
Preferably, the fan and the compressor can be synchronously controlled, that is, the target opening time and the target closing time of the fan do not need to be calculated independently, the target opening time and the target closing time of the compressor are directly used for controlling the opening and the closing of the fan, and only the target rotating speed gear of the fan is calculated, so that the calculation resources are saved.
According to the embodiment, the load action is controlled according to the target operation parameter values of the loads aiming at different load types, so that different loads can be effectively controlled, and the stability of the compartment temperature under the condition of the fault of the compartment sensor is ensured.
In one embodiment, after obtaining the operation information of the load corresponding to the compartment sensor with the fault within the preset time length before the compartment sensor with the fault, the method further includes: and if all the recorded operation information before the compartment sensor fails to reach the preset time length, or the working conditions corresponding to the operation information within the preset time length are not all the same as the working conditions of the compartment sensor at the failure moment, controlling the load action according to the preset operation parameter value.
The recorded all operation information before the compartment sensor fault does not reach the preset duration, and the fact that the load opening and closing times contained in the recorded all operation information do not reach the preset times is indicated, or the recorded all operation information does not contain the preset number of refrigeration and defrosting cycles, and the reference significance of the load operation information on the load control after the compartment sensor fault is not large under the condition. The working conditions comprise: the ambient temperature of the refrigerator and the set temperature of the refrigerator, and any one of the ambient temperature and the set temperature changes to indicate the change of the working condition. The load operation information under different working conditions has no reference to the current load control.
The preset operation parameter value is a parameter value for controlling the on/off of the load according to the timing set by the specific refrigerator, for example, in combination with the preset operation reference value and the preset load control sequence, the specific control of the load action is as follows: the compressor operates at 4 th gear of fixed rotating speed at 25-degree ring temperature, the refrigerating chamber is closed after 20min, the variable temperature chamber is closed after the refrigerating chamber is closed for 25min, the compressor is stopped after the variable temperature chamber is closed for 55min, the compressor is stopped for 30min, then the compressor, the refrigerating chamber and the variable temperature chamber are all opened, and the compressor, the refrigerating chamber and the variable temperature chamber operate circularly according to the parameter values until the chamber sensor returns to normal. Of course, the above is merely an example, and the preset operation parameter values and the load control sequence may be adjusted according to a specific refrigerator.
According to the embodiment, under the condition that the load cannot be controlled according to the operation information within the preset time length, the load action is controlled according to the preset operation parameter value, and the normal operation of the refrigerator is preferentially ensured.
A defrosting temperature sensor is arranged in the refrigerator and is generally arranged on the surface of an evaporator and used for detecting the temperature of an evaporator coil and used as a basis for judging whether a frost layer on the surface of the evaporator is melted completely.
The embodiment also provides a control mode of the heater under the condition of the fault of the defrosting temperature sensor, and particularly detects the fault of the defrosting temperature sensor; if defrosting is carried out before the defrosting temperature sensor fails, when the defrosting condition is met, controlling the heater to work according to the working time of the heater during last defrosting; and if the defrosting is not carried out before the fault of the defrosting temperature sensor, controlling the heater to work according to the preset heating time when the defrosting condition is met.
The fault detection of the defrosting temperature sensor is similar to that of the compartment sensor, and is not described again here. The defrosting entry condition may be a condition conventionally used to determine whether to enter defrosting, such as reaching a defrosting time interval. The preset heating time is a preset time threshold value for the heater to operate, and for example, the preset heating time may be 30 minutes.
In the case of the fault of the defrosting temperature sensor, if defrosting is carried out before the fault of the defrosting temperature sensor, the working time of the heater when the refrigerator subsequently enters defrosting is the working time of the heater when the refrigerator last time is defrosted, and if defrosting is not carried out before the fault of the defrosting temperature sensor, the working time of the heater when the refrigerator subsequently enters defrosting is the preset heating time, so that the heater can be effectively controlled to work under the condition of the fault of the defrosting temperature sensor, normal defrosting is ensured, and the reliability of refrigerator operation is improved.
Example two
The present embodiment describes the above-mentioned method for controlling the temperature of the refrigerator compartment with reference to a specific example, however, it should be noted that the specific example 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.
In this embodiment, the refrigerator includes a freezing compartment and a refrigerating compartment, the freezing compartment has no air door, the opening and closing of the compressor is controlled according to the refrigeration requirement of the freezing compartment, the fan and the compressor are synchronously controlled, the specific control of the fan is not described separately, and the control of the compressor is specifically referred. In this embodiment, the preset time duration is a time duration corresponding to N times of opening and closing the load, that is, N opening and closing periods, and one time of opening and closing the load is recorded as one opening and closing period.
As shown in fig. 2, the refrigerator compartment temperature control process includes the following steps:
s201, after the refrigerator is powered on to operate, continuously recording operation information of each load, wherein the operation information comprises the following steps: the opening and closing time of the compressor, the opening and closing time of the air door and the rotating speed gear of the compressor in the opening state.
S202, judging whether the refrigerating compartment sensor is in failure, if so, going to S203, and if not, going to S207.
S203, judging whether N opening and closing cycles of the refrigerating chamber air door are continuously recorded before the refrigerating chamber sensor fails, wherein the N opening and closing cycles and the sensor failure time are in the same refrigerating working condition, if yes, entering S204, and if not, entering S206. For example, N ═ 5.
S204, calculating the average opening time length and the average closing time length of the air doors of other opening and closing periods except the first opening and closing period after power-on in the N opening and closing periods, and then entering S205.
S205, controlling the refrigerating compartment air door to perform cyclic action according to the average opening time length and the average closing time length, and then entering S207.
S206, controlling the compressor and the air door of the refrigerating chamber to circularly operate according to preset operation parameter values, for example, the compressor operates at 4 th gear with a fixed rotating speed at the ring temperature of 25 degrees, the refrigerating chamber is closed after 20min, the compressor is stopped after the refrigerating chamber is closed for 55min, the stop time of the compressor is 30min, and then returning to S201.
S207, judging whether the freezing compartment sensor is in failure, if so, the process goes to S208, and if not, the process returns to S201. In this embodiment, the detection order of detecting whether the refrigerating chamber sensor is faulty or not and detecting whether the freezing chamber sensor is faulty or not may be changed, and of course, the refrigerating chamber sensor or the freezing chamber sensor may be detected simultaneously, that is, step S202 may be executed first, step S207 may be executed first, and step S202 and step S207 may be executed simultaneously.
And S208, judging whether N opening and closing cycles of the compressor are continuously recorded before the freezing chamber sensor fails, wherein the N opening and closing cycles and the sensor failure time are in the same refrigeration working condition, if so, entering S209, and if not, entering S206. For example, N ═ 5.
S209, the average on-time and the average off-time of the compressors of the other on-off periods of the N on-off periods except for the first on-off period after power-up are calculated, and then the process proceeds to S210. For example, the compressor on-time periods in 5 on-off cycles are 10, 11, 12, 13, and 18, respectively, and the unit is minute, and the average value is calculated to be 12.8, or the average value is calculated to be 12 after subtracting the minimum value and the maximum value, or 5 values are arranged according to size, and the middle value 12 is taken as the target on-time period.
And S210, controlling the compressor to perform cyclic opening and closing control according to the calculated average opening time length and average closing time length, wherein the rotating speed gear of the compressor during opening is the rotating speed gear of the opening and closing period before the fault, and then returning to S201.
And S211, judging whether the defrosting temperature sensor has faults or not, if so, entering S212, and if not, returning to S201.
S212, judging whether defrosting is already carried out, if yes, going to S213, and if not, going to S214.
When defrosting is started, the operation time of the heater is the operation time of the heater during the previous defrosting in S213, and the process returns to S201.
S214, when defrosting is started, the heater is operated for a preset heating time, for example, 30 minutes, and the process returns to S201.
In the embodiment, the action of the corresponding load after the compartment sensor fails is controlled through the load opening and closing conditions of N opening and closing cycles before the compartment sensor fails, and the action of the load can be effectively and reasonably controlled under the condition that the refrigerator compartment sensor fails, so that the compartment temperature is kept stable, and the reliability of refrigerator control is improved. And moreover, the heater can be effectively controlled to work under the condition that the defrosting temperature sensor has a fault, normal defrosting is guaranteed, and the running reliability of the refrigerator is improved.
EXAMPLE III
Based on the same inventive concept, the embodiment provides a refrigerator compartment temperature control device, which can be used for implementing the refrigerator compartment temperature 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. 3 is a block diagram of a temperature control device for a refrigerator compartment according to a third embodiment of the present invention, and as shown in fig. 3, the device includes:
a detection module 31 for detecting a compartment sensor failure;
an obtaining module 32, configured to obtain operation information of a load corresponding to the compartment sensor within a preset time before the compartment sensor fails;
and the control module 33 is configured to control the load action according to the operation information within the preset time length.
Optionally, the control module 33 includes:
the determining unit is used for determining a target operation parameter value of the load according to the operation information in the preset time length;
and the control unit is used for controlling the load to circularly operate according to the target operation parameter value.
Optionally, the number of the loads corresponding to the compartment sensor is at least one; the operation information in the preset time length at least comprises: the on-duration of at least one and the off-duration of at least one for each load.
The determining unit is specifically configured to: and calculating all the opening durations of the load in the operation information in the preset duration according to a first preset rule to obtain the target opening duration of the load, and calculating all the closing durations of the load in the operation information in the preset duration according to the first preset rule to obtain the target closing duration of the load.
Optionally, the operation information within the preset duration further includes: the speed gear when the load is in the open state.
The determining unit is further specifically configured to: determining a rotation speed gear of the load when the load is started for the last time in the running information within the preset time length as a target rotation speed gear of the load; or calculating all the rotating speed gears of the load in the running information within the preset time according to a second preset rule to obtain the target rotating speed gear of the load.
Optionally, the control module 33 further includes:
the judging unit is used for judging whether the running information in the preset time length contains the information of the first opening and closing of the load after the refrigerator is powered on or not before the determining unit determines the target running parameter value of the load according to the running information in the preset time length;
and the eliminating unit is used for eliminating the information of the first opening and closing of the load after the refrigerator is electrified from the operation information in the preset time length if the load is in the preset time length.
Optionally, the control unit is specifically configured to:
if the load corresponding to the compartment sensor comprises a compressor, controlling the compressor to circularly operate according to the target opening duration and the target closing duration of the compressor, and controlling the compressor to operate according to the target rotating speed gear of the compressor in an opening state;
if the load corresponding to the compartment sensor comprises a fan, controlling the fan to operate circularly according to the target opening time and the target closing time of the fan, and controlling the fan to operate according to the target rotating speed gear of the fan in an opening state;
and if the load corresponding to the compartment sensor comprises a compartment air door, controlling the compartment air door to circularly act according to the target opening time and the target closing time of the compartment air door.
Optionally, the temperature control device for a refrigerator compartment further includes:
and the load control module is used for controlling the load action according to a preset operation parameter value after acquiring the operation information of the load corresponding to the compartment sensor within a preset time before the compartment sensor fails, if all the recorded operation information before the compartment sensor fails to reach the preset time, or if all the working conditions corresponding to the operation information within the preset time are not the same as the working conditions at the fault moment of the compartment sensor.
Optionally, the temperature control device for a refrigerator compartment further includes:
the fault detection module is used for detecting faults of the defrosting temperature sensor;
the defrosting control module is used for controlling the heater to work according to the working time of the heater during last defrosting when the defrosting condition is met if defrosting is carried out before the defrosting temperature sensor fails; and if defrosting is not carried out before the defrosting temperature sensor fails, controlling the heater to work according to preset heating time when a defrosting condition is met.
Optionally, the temperature control device for a refrigerator compartment further includes: and the recording module is used for continuously recording the operation information of all the loads under the condition that the corresponding compartment sensors have no faults in the operation process of the refrigerator.
Optionally, the preset duration is: the time length corresponding to the preset times of opening and closing the load or the time length corresponding to the preset number of refrigeration defrosting cycles.
The refrigerator compartment temperature control device can execute the refrigerator compartment temperature control method provided by the embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method. Technical details that are not described in detail in this embodiment can be referred to a method for controlling a temperature of a compartment of a refrigerator according to an embodiment of the present invention.
Example four
The embodiment provides a refrigerator, including: the temperature control device for the refrigerator compartment according to the above 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 (14)
1. A method for controlling the temperature of a refrigerator compartment is characterized by comprising the following steps:
detecting a compartment sensor failure;
acquiring operation information of a load corresponding to the compartment sensor within a preset time before the compartment sensor fails;
and controlling the load action according to the running information in the preset time length.
2. The method according to claim 1, wherein controlling the load action according to the running information within the preset time period comprises:
determining a target operation parameter value of the load according to the operation information in the preset time length;
and controlling the load to circularly operate according to the target operation parameter value.
3. The method of claim 2, wherein the number of loads to which the compartment sensor corresponds is at least one; the operation information in the preset time length at least comprises: at least one on-time and at least one off-time for each load;
determining a target operation parameter value of the load according to the operation information in the preset time length, wherein the method comprises the following steps:
and calculating all the opening durations of the load in the operation information in the preset duration according to a first preset rule to obtain the target opening duration of the load, and calculating all the closing durations of the load in the operation information in the preset duration according to the first preset rule to obtain the target closing duration of the load.
4. The method of claim 3, wherein the operation information within the preset duration further comprises: a rotational speed gear when the load is in an on state;
determining a target operation parameter value of the load according to the operation information in the preset time length, further comprising:
determining a rotation speed gear of the load when the load is started for the last time in the running information within the preset time length as a target rotation speed gear of the load; or,
and calculating all the rotating speed gears of the load in the running information within the preset time according to a second preset rule to obtain the target rotating speed gear of the load.
5. The method of claim 2, further comprising, prior to determining the target operating parameter value for the load based on the operating information for the preset duration:
judging whether the running information in the preset time length contains information of first opening and closing of the load after the refrigerator is powered on;
and if so, removing the information of the first opening and closing of the load after the refrigerator is electrified from the operation information in the preset time length.
6. The method of claim 2, wherein controlling the load to cyclically operate according to the target operating parameter value comprises:
if the load corresponding to the compartment sensor comprises a compressor, controlling the compressor to circularly operate according to the target opening duration and the target closing duration of the compressor, and controlling the compressor to operate according to the target rotating speed gear of the compressor in an opening state;
if the load corresponding to the compartment sensor comprises a fan, controlling the fan to operate circularly according to the target opening time and the target closing time of the fan, and controlling the fan to operate according to the target rotating speed gear of the fan in an opening state;
and if the load corresponding to the compartment sensor comprises a compartment air door, controlling the compartment air door to circularly act according to the target opening time and the target closing time of the compartment air door.
7. The method of claim 1, after obtaining the operation information of the load corresponding to the compartment sensor within the preset time period before the compartment sensor is failed, further comprising:
and if all recorded operation information before the compartment sensor fails to reach the preset time length, or the working conditions corresponding to the operation information within the preset time length are not all the same as the working conditions at the compartment sensor failure moment, controlling the load action according to preset operation parameter values.
8. The method of any one of claims 1 to 7, further comprising:
detecting a defrosting temperature sensor fault;
if defrosting is carried out before the defrosting temperature sensor fails, controlling the heater to work according to the working time of the heater during last defrosting when a defrosting condition is met;
and if the defrosting is not carried out before the fault of the defrosting temperature sensor, controlling the heater to work according to preset heating time when the defrosting condition is met.
9. The method of any one of claims 1 to 7, further comprising:
during the operation of the refrigerator, the operation information of all the loads under the condition that the corresponding compartment sensors are not in fault is continuously recorded.
10. The method according to any one of claims 1 to 7, wherein the preset duration is: the time length corresponding to the preset times of opening and closing the load or the time length corresponding to the preset number of refrigeration defrosting cycles.
11. A refrigerator compartment temperature control apparatus, comprising:
the detection module is used for detecting the compartment sensor fault;
the acquisition module is used for acquiring the operation information of the load corresponding to the compartment sensor within a preset time length before the compartment sensor fails;
and the control module is used for controlling the load action according to the running information in the preset time length.
12. A refrigerator, characterized by comprising: the refrigerator compartment temperature control apparatus of claim 11.
13. 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 10 when executing the computer program.
14. A non-transitory computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the method of any one of claims 1 to 10.
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| CN202110989904.1A CN113776264A (en) | 2021-08-26 | 2021-08-26 | Refrigerator compartment temperature control method and device and refrigerator |
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| CN202110989904.1A CN113776264A (en) | 2021-08-26 | 2021-08-26 | Refrigerator compartment temperature control method and device and refrigerator |
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