CN113803957A - Control method and device of refrigeration equipment, controller and refrigeration equipment - Google Patents
Control method and device of refrigeration equipment, controller and refrigeration equipment Download PDFInfo
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- CN113803957A CN113803957A CN202111138855.7A CN202111138855A CN113803957A CN 113803957 A CN113803957 A CN 113803957A CN 202111138855 A CN202111138855 A CN 202111138855A CN 113803957 A CN113803957 A CN 113803957A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The application relates to a control method and device of refrigeration equipment, a controller and the refrigeration equipment. After the stalling fault of the condensing fan is determined, the refrigerating fan and the compressor are kept running for a period of time and then are closed successively, so that the overhigh temperature of the condenser and the overlarge system pressure can be avoided, and the refrigerating effect of the refrigerating equipment is maintained to the maximum extent; in addition, after the compressor is closed for a certain time, along with natural heat dissipation, the compressor is started again after the temperature of the condenser is reduced to a reasonable range, so that the refrigeration process can be recovered again, and the damage to stored articles is avoided.
Description
Technical Field
The application relates to the technical field of refrigeration equipment, in particular to a control method and device of refrigeration equipment, a controller and the refrigeration equipment.
Background
Refrigeration equipment such as refrigerator that has independent condenser need set up condensing fan cooperation condenser heat dissipation, whether the condenser radiating state has decisive influence to the complete machine operation safety and stability, and condensing fan's operation plays decisive role to the radiating effect of condenser, when the cooling of condensing fan is opened to needs, if condensing fan breaks down and stall, then can cause the condenser temperature to rise rapidly, lead to the system pressure too high, and then can cause a series of safety problems.
Disclosure of Invention
The application provides a control method and device of refrigeration equipment, a controller and the refrigeration equipment, and aims to solve the problem that when a condensing fan breaks down and stops rotating, the temperature of a condenser rises rapidly, and the pressure of a system is overhigh.
The above object of the present application is achieved by the following technical solutions:
in a first aspect, an embodiment of the present application provides a method for controlling a refrigeration apparatus, including:
after a condensing fan of refrigeration equipment is controlled to be started, detecting whether a stall fault occurs in the condensing fan;
if the fact that the stop fault of the condensing fan occurs is determined, controlling a refrigerating fan of the refrigerating equipment to stop running when the duration time of the stop fault of the condensing fan reaches a first preset time;
when the duration of the stop operation of the refrigeration fan reaches a second preset time, controlling a compressor of refrigeration equipment to stop operation and controlling the refrigeration fan to start;
and when the duration of the stop operation of the compressor reaches a third preset time, controlling the compressor to restart.
Optionally, the detecting whether the condensing fan has a stall fault includes:
and detecting whether the stop fault of the condensing fan occurs or not by a detection device arranged at a preset position.
Optionally, the detection device is an infrared detection device; the infrared detection device comprises an infrared emission module and an infrared receiving module which are respectively arranged at two sides of a fan blade of the condensing fan; the infrared receiving module generates a first detection signal if receiving the infrared rays sent by the infrared transmitting module, and generates a second detection signal if the infrared receiving module receives the infrared rays sent by the infrared transmitting module;
the detecting whether the stop fault of the condensing fan occurs through the detecting device includes:
acquiring a detection signal generated by the infrared detection device;
judging whether the detection signals are the first detection signals and the second detection signals which change alternately in a preset period;
and if the judgment result is negative, determining that the stop fault of the condensing fan occurs.
Optionally, when acquiring the detection signal generated by the infrared detection device, the value of the acquisition frequency is at least twice as large as the value of the rotation speed of the condensing fan.
Optionally, the method further includes:
and if the stop fault of the condensing fan is determined, sending an alarm signal.
In a second aspect, an embodiment of the present application further provides a control device for a refrigeration apparatus, including:
the detection module is used for detecting whether the stop fault of the condensing fan occurs after the condensing fan of the refrigeration equipment is controlled to be started;
the processing module is used for controlling a refrigeration fan of the refrigeration equipment to stop running when the duration of the stalling fault of the condensation fan reaches a first preset time if the stalling fault of the condensation fan is determined; when the duration of the stop operation of the refrigeration fan reaches a second preset time, controlling a compressor of the refrigeration equipment to stop operation and controlling the refrigeration fan to start; when the duration of the stop operation of the compressor reaches a third preset time, controlling the compressor to restart; the second preset time is longer than the first preset time; the third preset time is greater than the second preset time.
In a third aspect, an embodiment of the present application further provides a controller of a refrigeration apparatus, including:
a memory and a processor coupled to the memory;
the memory for storing a program for implementing at least the method according to any of the first aspects;
the processor is used for calling and executing the program stored in the memory.
In a fourth aspect, embodiments of the present application further provide a refrigeration apparatus, which includes the controller of the refrigeration apparatus according to the third aspect.
Optionally, the refrigeration equipment further comprises an infrared detection device connected with the controller;
the infrared detection device is used for detecting the running state of the condensing fan, so that the controller detects whether the condensing fan has a stall fault according to the running state of the condensing fan.
Optionally, the refrigeration appliance comprises a refrigerator.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
according to the technical scheme, after the condensing fan of the refrigeration equipment is controlled to be started, if the condensing fan is determined to have a stalling fault, when the duration of the fault reaches first preset time, the refrigerating fan is controlled to stop running, then when the duration of the stopping running of the refrigerating fan reaches second preset time, the compressor is controlled to stop running and the refrigerating fan is controlled to be started, and then when the duration of the stopping running of the compressor reaches third preset time, the compressor is controlled to be restarted. According to the arrangement, after the stalling fault of the condensing fan is determined, the refrigerating fan and the compressor are kept running for a period of time and then are closed successively, so that the overhigh temperature of the condenser and the overhigh pressure of a system can be avoided, and the refrigerating effect of the refrigerating equipment is maintained to the maximum extent; in addition, after the compressor is closed for a certain time, along with natural heat dissipation, the compressor is started again after the temperature of the condenser is reduced to a reasonable range, so that the refrigeration process can be recovered again, and the damage to stored articles is avoided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic flowchart of a control method of a refrigeration apparatus according to an embodiment of the present disclosure;
fig. 2 is a schematic view of an arrangement position of an infrared detection device according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a control device of a refrigeration apparatus according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a controller of a refrigeration apparatus according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
In the related art, after the condensing temperature and pressure are too high due to the failure and the shutdown of the condensing fan, a protection mechanism is usually started to stop the refrigeration equipment in order to avoid potential safety hazards and damage to the unit, and thus, the stored articles may be damaged. Based on the above problems, the application provides a control method, a control device, a controller and a refrigeration device for the refrigeration device, after the fault of the condensing fan is detected, the refrigeration fan and the compressor are controlled, so that on the premise of ensuring the refrigeration effect as much as possible, the potential safety hazard caused by the overhigh system pressure is avoided or the shutdown is protected. The details of the embodiment are described below by way of examples.
Examples
Referring to fig. 1, fig. 1 is a schematic flowchart of a control method of a refrigeration apparatus according to an embodiment of the present application. As shown in fig. 1, the method comprises at least the following steps:
s101: after a condensing fan of refrigeration equipment is controlled to be started, detecting whether a stall fault occurs in the condensing fan;
specifically, after the refrigeration equipment starts to refrigerate, the condensing fan can be started synchronously along with the starting of the compressor, the refrigeration fan and other components, or the condensing fan can be started after the specific conditions are met without being started when the refrigeration equipment starts to refrigerate. In this embodiment, after the condensing fan is controlled to be started, whether the condensing fan is stopped is detected as a prerequisite for controlling other components of the refrigeration equipment in subsequent steps.
During specific implementation, whether the condensing fan stalls or not can be judged by detecting operation parameters (such as current or rotating speed and the like) of the condensing fan, or whether a stall fault of the condensing fan occurs or not can be detected by a detection device which is preset at a preset position.
For example, the detection device may be an infrared detection device, and the arrangement position of the detection device is as shown in fig. 2, where the infrared detection device includes an infrared emission module 1 and an infrared reception module 2 respectively arranged at two sides of a fan blade 3 of the condensing fan, the infrared emission module 1 is connected to a control end of a processing unit (that is, a controller described below), the infrared reception module 2 is connected to a detection end of the processing unit, and the operation principle is as follows: the infrared transmitting module 1 continuously transmits infrared rays to the infrared receiving module 2, and if the infrared receiving module 2 receives the infrared rays transmitted by the infrared transmitting module 1 (i.e. the infrared rays are not shielded by the fan blade 3), a first detection signal is generated (in practical application, the infrared receiving module outputs a low level), otherwise (i.e. the infrared rays are shielded by the fan blade 3), a second detection signal is generated (in practical application, the infrared receiving module outputs a high level);
based on this, the step of detecting whether the stall failure of the condensing fan occurs through the detecting device specifically includes: acquiring a detection signal generated by an infrared detection device; judging whether the detection signals are a first detection signal and a second detection signal which alternately change in a preset period; and if the judgment result is negative, determining that the stop fault of the condensing fan occurs.
Specifically, when the condensing fan normally operates, the fan blades 3 periodically shield infrared rays emitted by the infrared emission module in the rotating process, so that the infrared receiving module periodically outputs a first detection signal and a second detection signal; and when the condensing fan stalls, its flabellum can continuously shelter from the infrared ray that infrared emission module sent or can not shelter from the infrared ray that infrared emission module sent at all, consequently, infrared receiving module can continuously output first detected signal or continuously output second detected signal. Based on this, when the detection signal that alternately changes within the preset period is not acquired, it indicates that the condensing fan is stopped.
In order to avoid erroneous determination, the frequency is acquired at least twice as high as the rotational speed of the condensing fan when the detection signal generated by the infrared detection device is acquired. Therefore, the detection signal which is changed alternately can be prevented from being judged as the detection signal which is not changed continuously by mistake, namely, the condensing fan which runs normally is prevented from being judged as the stop running.
S102: if the fact that the stop fault of the condensing fan occurs is determined, controlling a refrigerating fan of the refrigerating equipment to stop running when the duration time of the stop fault of the condensing fan reaches a first preset time;
specifically, after the stall fault of the condensing fan occurs, the system cannot realize effective heat dissipation of the condenser, so that the temperature of the condenser can be rapidly increased, and further the pressure of the system is too high. The refrigeration fan is used for blowing cold air obtained by heat exchange at the evaporator into a storage compartment (such as a freezing compartment obtained by an air-cooled refrigerator) of the refrigeration equipment to realize circulation of cold and hot air between the evaporator chamber and the compartment, so that after the refrigeration fan stops running, the temperature at the evaporator is not increased due to arrival of air with relatively high temperature in the compartment, the heat exchange efficiency of the evaporator is reduced, the heat exchange efficiency of the condenser is reduced, the temperature increasing speed of the condenser is reduced to a certain extent, and the pressure increasing speed of a system is reduced even the pressure of the system is reduced.
In addition, in the step, when the stop fault of the condensing fan occurs, the refrigerating fan is controlled to stop running after continuously running for a period of time, so that the refrigerating time of the compartment is prolonged, and the refrigerating effect is improved. The specific value of the first preset time can be determined according to information such as actual structural parameters of the refrigeration equipment.
When the condensing fan is normally operated, the step S102 and the subsequent steps are not executed, but the process returns to the step S101.
S103: when the duration of the stop operation of the refrigeration fan reaches a second preset time, controlling a compressor of refrigeration equipment to stop operation and controlling the refrigeration fan to start;
specifically, although after the cooling fan stops operating, the rising speed of the condenser temperature can be reduced to a certain extent, but because the compressor continues operating and lacks heat dissipation, the condenser temperature still keeps rising trend, and in this case, in order to avoid the condenser temperature being too high, the compressor is closed when the duration of the cooling fan stop operating reaches the second preset time, so as to stop the refrigeration cycle, stop the heat exchange at the condenser, and gradually and naturally reduce the condenser temperature. The specific value of the second preset time can also be determined according to information such as actual structural parameters of the refrigeration equipment.
Also, in a period in which the cooling fan stops operating but the compressor continues operating, since the cooling cycle continues, the temperature of air at the evaporator may decrease. Based on this, in this step, when the compressor is controlled to stop running, the refrigeration fan is synchronously controlled to start, so that the cold air at the evaporator is used for refrigerating the compartment, and the compartment temperature is prevented from being excessively increased during the running stop of the compressor.
S104: and when the duration of the stop operation of the compressor reaches a third preset time, controlling the compressor to restart.
Specifically, after the compressor stops operating, the condenser naturally radiates heat, the temperature of the condenser gradually and naturally decreases, and when the duration of the compressor stopping operation reaches the third preset time, the temperature of the condenser is reduced to a reasonable range, so that the compressor can be restarted to recover the refrigeration operation, and the refrigeration requirement of stored articles is met.
After the compressor is restarted, the process returns to step S101, detects whether the condensing fan is stopped again, and controls the operation states of the components such as the compressor and the cooling fan according to the detection result.
According to the technical scheme, after the condensing fan of the refrigeration equipment is controlled to be started, if the condensing fan is determined to have a stalling fault, when the duration time of the fault reaches the first preset time, the refrigerating fan is controlled to stop running, then when the duration time of the stopping running of the refrigerating fan reaches the second preset time, the compressor is controlled to stop running and the refrigerating fan is controlled to be started, and then when the duration time of the stopping running of the compressor reaches the third preset time, the compressor is controlled to be restarted. According to the arrangement, after the stalling fault of the condensing fan is determined, the refrigerating fan and the compressor are kept running for a period of time and then are closed successively, so that the overhigh temperature of the condenser and the overhigh pressure of a system can be avoided, and the refrigerating effect of the refrigerating equipment is maintained to the maximum extent; in addition, after the compressor is closed for a certain time, along with natural heat dissipation, the compressor is started again after the temperature of the condenser is reduced to a reasonable range, so that the refrigeration process can be recovered again, and the damage to stored articles is avoided.
Further, in some embodiments, the method further comprises: and if the stop fault of the condensing fan is determined, sending an alarm signal. The alarm signal can be in the forms of sound, light and the like, namely, the sound and light alarm signal can prompt a user that the refrigeration equipment has a fault so as to remind the user of timely maintenance; meanwhile, a specific error code can be displayed on a display screen of the refrigeration equipment, so that maintenance personnel can conveniently and quickly determine the fault content, and the overhaul time is shortened.
In addition, based on the same inventive concept, the present application also provides a control device of a refrigeration apparatus corresponding to the method of the above embodiment. The means are software and/or hardware based functional modules in the device for performing the above method.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a control device of a refrigeration apparatus according to an embodiment of the present application. As shown in fig. 3, the apparatus includes:
the detection module 31 is configured to detect whether a stall fault occurs in a condensing fan of the refrigeration equipment after the condensing fan is controlled to be started;
the processing module 32 is configured to, if it is determined that the condensing fan has the stall failure, control the refrigeration fan of the refrigeration equipment to stop operating when the duration of the stall failure of the condensing fan reaches a first preset time; when the duration of the stop operation of the refrigeration fan reaches a second preset time, controlling a compressor of the refrigeration equipment to stop operation and controlling the refrigeration fan to start; when the duration of the stop operation of the compressor reaches a third preset time, controlling the compressor to restart; the second preset time is longer than the first preset time; the third preset time is greater than the second preset time.
Optionally, when detecting whether the stall fault occurs in the condensing fan, the detecting module 31 is specifically configured to:
and detecting whether the stop fault of the condensing fan occurs or not by a detection device arranged at a preset position. Optionally, the detection device is an infrared detection device; the infrared detection device comprises an infrared emission module and an infrared receiving module which are respectively arranged at two sides of a fan blade of the condensing fan; the infrared receiving module generates a first detection signal if receiving the infrared rays sent by the infrared transmitting module, and generates a second detection signal if the infrared receiving module receives the infrared rays sent by the infrared transmitting module;
correspondingly, when the detecting module 31 detects whether the stall failure of the condensing fan occurs through the detecting device, it is specifically configured to:
acquiring a detection signal generated by the infrared detection device;
judging whether the detection signals are the first detection signals and the second detection signals which change alternately in a preset period;
and if the judgment result is negative, determining that the stop fault of the condensing fan occurs.
Optionally, when acquiring the detection signal generated by the infrared detection device, the detection module 31 acquires a frequency value at least twice as large as a rotational speed value of the condensing fan.
Optionally, the apparatus further comprises:
and the alarm module is used for sending out an alarm signal when the stop fault of the condensing fan is determined.
The specific implementation method of the steps executed by the functional modules of the apparatus may refer to the corresponding content of the foregoing method embodiments, and will not be described in detail here.
In addition, referring to fig. 4, based on the same inventive concept, corresponding to the method of the above embodiment, an embodiment of the present application further provides a controller of a refrigeration apparatus, as shown in fig. 2, the controller including:
a memory 41 and a processor 42 connected to the memory 41; the memory 41 is used for storing a program for implementing at least the method described in the foregoing embodiments; the processor 42 is used to call and execute the program stored in the memory 41.
When the controller of the refrigeration equipment is applied to the refrigeration equipment, such as a refrigerator, a corresponding control method can be realized. Moreover, the specific implementation method of the steps executed by the above program may refer to the corresponding content of the foregoing method embodiments, and will not be described in detail here.
In addition, in some embodiments, when the infrared detection device is used to detect whether the stalling fault occurs in the condensing fan, the corresponding refrigeration equipment further comprises the infrared detection device connected with the controller;
the infrared detection device is used for detecting the running state of the condensing fan, so that the controller detects whether the condensing fan has a stall fault according to the running state of the condensing fan.
By the scheme, after the stalling fault of the condensing fan is determined, the refrigerating fan and the compressor are kept running for a period of time and then are closed successively, so that the overhigh temperature of the condenser and the overhigh pressure of a system can be avoided, and the refrigerating effect of the refrigerating equipment is maintained to the maximum extent; in addition, after the compressor is closed for a certain time, along with natural heat dissipation, the compressor is started again after the temperature of the condenser is reduced to a reasonable range, so that the refrigeration process can be recovered again, and the damage to stored articles is avoided.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A method of controlling a refrigeration apparatus, comprising:
after a condensing fan of refrigeration equipment is controlled to be started, detecting whether a stall fault occurs in the condensing fan;
if the fact that the stop fault of the condensing fan occurs is determined, controlling a refrigerating fan of the refrigerating equipment to stop running when the duration time of the stop fault of the condensing fan reaches a first preset time;
when the duration of the stop operation of the refrigeration fan reaches a second preset time, controlling a compressor of refrigeration equipment to stop operation and controlling the refrigeration fan to start;
and when the duration of the stop operation of the compressor reaches a third preset time, controlling the compressor to restart.
2. The method of claim 1, wherein said detecting whether a stall fault has occurred in said condensing fan comprises:
and detecting whether the stop fault of the condensing fan occurs or not by a detection device arranged at a preset position.
3. The method of claim 2, wherein the detection device is an infrared detection device; the infrared detection device comprises an infrared emission module and an infrared receiving module which are respectively arranged at two sides of a fan blade of the condensing fan; the infrared receiving module generates a first detection signal if receiving the infrared rays sent by the infrared transmitting module, and generates a second detection signal if the infrared receiving module receives the infrared rays sent by the infrared transmitting module;
the detecting whether the stop fault of the condensing fan occurs through the detecting device includes:
acquiring a detection signal generated by the infrared detection device;
judging whether the detection signals are the first detection signals and the second detection signals which change alternately in a preset period;
and if the judgment result is negative, determining that the stop fault of the condensing fan occurs.
4. A method according to claim 3, characterized in that in acquiring the detection signal generated by the infrared detection means, the frequency is acquired at a value at least twice the value of the rotation speed of the condensation fan.
5. The method of claim 1, further comprising:
and if the stop fault of the condensing fan is determined, sending an alarm signal.
6. A control device for a refrigeration apparatus, comprising:
the detection module is used for detecting whether the stop fault of the condensing fan occurs after the condensing fan of the refrigeration equipment is controlled to be started;
the processing module is used for controlling a refrigeration fan of the refrigeration equipment to stop running when the duration of the stalling fault of the condensation fan reaches a first preset time if the stalling fault of the condensation fan is determined; when the duration of the stop operation of the refrigeration fan reaches a second preset time, controlling a compressor of the refrigeration equipment to stop operation and controlling the refrigeration fan to start; when the duration of the stop operation of the compressor reaches a third preset time, controlling the compressor to restart; the second preset time is longer than the first preset time; the third preset time is greater than the second preset time.
7. A controller for a refrigeration appliance, comprising:
a memory and a processor coupled to the memory;
the memory for storing a program for implementing at least the method of any one of claims 1-5;
the processor is used for calling and executing the program stored in the memory.
8. A refrigeration appliance comprising the refrigeration appliance controller of claim 7.
9. The refrigeration appliance according to claim 8, further comprising an infrared detection device connected to the controller;
the infrared detection device is used for detecting the running state of the condensing fan, so that the controller detects whether the condensing fan has a stall fault according to the running state of the condensing fan.
10. A cold appliance according to claim 8 or 9, wherein the cold appliance comprises a refrigerator.
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| EP2679936A1 (en) * | 2012-06-25 | 2014-01-01 | Whirlpool Corporation | Fault detection and diagnosis for refrigerator from compressor sensor |
| US20150260448A1 (en) * | 2014-03-13 | 2015-09-17 | True Manufacturing Company, Inc. | Internal control systems of evaporator and condenser fan motor assemblies of a refrigeration system in a refrigerator unit |
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