CN112665300A - Control method, device and equipment for compressor of inverter refrigerator and inverter refrigerator - Google Patents
Control method, device and equipment for compressor of inverter refrigerator and inverter refrigerator Download PDFInfo
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- CN112665300A CN112665300A CN202011441197.4A CN202011441197A CN112665300A CN 112665300 A CN112665300 A CN 112665300A CN 202011441197 A CN202011441197 A CN 202011441197A CN 112665300 A CN112665300 A CN 112665300A
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Abstract
The invention relates to a control method, a control device and a control equipment of a compressor of a variable frequency refrigerator and the variable frequency refrigerator, wherein the method comprises the following steps: acquiring the current compartment temperature of the refrigerator in real time; detecting a current operation state of the compressor; if the current running state represents the preset special running, the compressor runs at the maximum gear speed in the gear speed association rule as the current running speed until the current compartment temperature reaches the preset shutdown temperature; if the current running state indicates normal running, the compressor takes a preset reference rotating speed as the current running rotating speed to carry out rotating speed transition running; and adjusting the current running rotating speed according to the current compartment temperature and the preset starting temperature until the current compartment temperature reaches the preset shutdown temperature. This scheme of adoption, when the compressor normal operating was first powered on, the control compressor was earlier in order to predetermine the benchmark rotational speed operation, realized the rotational speed transition, and the adjustment operation rotational speed is again after stable, avoids the too big compressor of rotational speed to jump the machine, improves compressor operation stationarity, reliability and compressor life.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a control method, a control device and control equipment of a compressor of a variable frequency refrigerator and the variable frequency refrigerator.
Background
Along with the development of the refrigerator industry and the improvement of the living standard of people, the frequency conversion refrigerator is more and more favored by people, meanwhile, the requirement of people on the performance of the frequency conversion refrigerator is also higher and higher, and the service environment of the frequency conversion refrigerator is more and more diversified.
The control of the frequency conversion refrigerator in the current market mostly adopts the control of the rotating speed of the compressor through the ambient temperature and the refrigeration request, so that the compressor is started to operate at a high rotating speed during the power-on and power-on operation of the refrigerator, an overcurrent protection mechanism is easily triggered, the compressor is enabled to jump, the operation stability and reliability of the compressor are affected, and the service life of the compressor is shortened.
Disclosure of Invention
In view of the above, the present invention provides a method, an apparatus, a device and a system for controlling a compressor of an inverter refrigerator, and an inverter refrigerator, so as to solve the problem in the prior art that when the compressor is started and operated at a high rotation speed, an overcurrent protection mechanism is easily triggered, so that the compressor trips, stability and reliability of operation of the compressor are affected, and the service life of the compressor is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
a control method of a compressor of an inverter refrigerator comprises the following steps:
acquiring the current compartment temperature of the refrigerator in real time;
detecting a current operation state of the compressor;
if the current running state represents preset special running, determining the maximum gear rotating speed in a preset gear rotating speed association rule as the current running rotating speed of the compressor so as to control the compressor to run until the current compartment temperature reaches a preset shutdown temperature;
if the current running state represents normal running, determining a preset reference rotating speed as the current running rotating speed so as to control the compressor to perform rotating speed transition running;
and adjusting the current running rotating speed of the compressor according to the current compartment temperature and a preset starting temperature until the current compartment temperature reaches a preset stopping temperature.
Further, in the method for controlling a compressor of an inverter refrigerator, the determining a preset reference rotation speed as the current operation rotation speed to control the compressor to perform rotation speed transition operation includes:
taking the preset reference rotating speed as the current operating rotating speed;
determining the rotating speed transition duration according to the pre-acquired current environment temperature and the preset comparison temperature;
and controlling the compressor to perform rotating speed transition operation at the current operating rotating speed within the rotating speed transition duration.
Further, in the method for controlling the compressor of the inverter refrigerator, the determining the rotational speed transition duration according to the pre-acquired current ambient temperature and the preset comparison temperature includes:
judging whether the current environment temperature is lower than the preset contrast temperature or not;
if the current environment temperature is not less than the preset comparison temperature, taking a first transition duration as the rotating speed transition duration;
and if the current environment temperature is smaller than the preset comparison temperature, taking a second transition duration as the rotating speed transition duration.
Further, in the method for controlling a compressor of an inverter refrigerator, the adjusting a current operating speed of the compressor according to the current compartment temperature and a preset starting temperature until the current compartment temperature reaches a preset stopping temperature includes:
according to the current compartment temperature and the preset starting temperature, within a preset gear-up duration, performing temperature difference gear-up adjustment on the current operating rotating speed to obtain a temperature difference gear-up operating rotating speed, so that the compressor operates according to the temperature difference gear-up operating rotating speed;
and if the current compartment temperature does not reach the preset shutdown temperature after the preset duration, performing stage upshift adjustment on the temperature difference upshift operation rotating speed until the current compartment temperature reaches the preset shutdown temperature.
Further, in the method for controlling a compressor of a variable frequency refrigerator, the performing a temperature difference upshift adjustment on the current operating speed according to the current compartment temperature and the preset starting temperature within a preset upshift duration to obtain a temperature difference upshift operating speed, so that the compressor operates according to the temperature difference upshift operating speed includes:
determining a current temperature difference value between the current compartment temperature and the preset starting temperature;
determining the gear-up number corresponding to the current temperature difference value by utilizing a preset association rule of the temperature difference and the gear-up number;
and within a preset gear-up duration, determining the temperature difference gear-up operating speed after the current operating speed is adjusted according to the gear-up number by utilizing the gear speed association rule, so that the compressor operates according to the temperature difference gear-up operating speed.
Further, in the method for controlling a compressor of an inverter refrigerator, the step-up adjustment of the temperature difference step-up operating speed until the current compartment temperature reaches the preset shutdown temperature includes:
judging whether the temperature difference upshift operation rotating speed is the maximum gear rotating speed in the gear rotating speed association rule or not;
if the temperature difference upshifting operation rotating speed is the maximum gear rotating speed, controlling the compressor to operate at the temperature difference upshifting operation rotating speed until the current compartment temperature reaches the preset shutdown temperature;
if the temperature difference upshift operation rotating speed is not the maximum gear rotating speed, the gear rotating speed association rule is utilized, the gear number corresponding to the temperature difference upshift operation rotating speed is increased by one gear every other than the preset duration time, and the stage upshift operation rotating speed after the gear number is increased is obtained, so that the compressor operates according to the stage upshift operation rotating speed until the stage upshift operation rotating speed reaches the maximum gear rotating speed.
Further, in the method for controlling a compressor of an inverter refrigerator, the presetting of the special operation includes: after defrosting, the operation is carried out for the first time or the operation with special functions.
The invention also provides a control device of the compressor of the inverter refrigerator, which comprises: the device comprises an acquisition module, a detection module, a determination module and an adjustment module;
the acquisition module is used for acquiring the current compartment temperature of the refrigerator in real time;
the detection module is used for detecting the current running state of the compressor;
the determining module is used for determining the maximum gear rotating speed in a preset gear rotating speed association rule as the current operating rotating speed of the compressor if the current operating state represents the preset special operation, so as to control the compressor to operate until the current compartment temperature reaches the preset shutdown temperature;
the determining module is further configured to determine a preset reference rotating speed as the current operating rotating speed if the current operating state indicates normal operation, so as to control the compressor to perform rotating speed transition operation;
the adjusting module is used for adjusting the current running rotating speed of the compressor according to the current compartment temperature and the preset starting temperature until the current compartment temperature reaches the preset stopping temperature.
Further, in the control device of the compressor of the inverter refrigerator, the determining module includes: the device comprises a rotating speed determining unit, a duration determining unit and a control unit;
the rotating speed determining unit is used for taking the preset reference rotating speed as the current operating rotating speed;
the duration determining unit is used for determining the rotating speed transition duration according to the pre-acquired current environment temperature and the preset comparison temperature;
and the control unit is used for controlling the compressor to perform rotating speed transition operation at the current operating rotating speed within the rotating speed transition duration.
Further, in the control device of the compressor of the inverter refrigerator, the adjusting module includes: a temperature difference upshift adjusting unit and a stage upshift adjusting unit;
the temperature difference upshift adjusting unit is used for performing temperature difference upshift adjustment on the current operating rotating speed within a preset upshift duration according to the current compartment temperature and the preset starting temperature to obtain a temperature difference upshift operating rotating speed so that the compressor operates according to the temperature difference upshift operating rotating speed;
and the stage upshift adjusting unit is used for performing stage upshift adjustment on the temperature difference upshift operating rotating speed until the current compartment temperature reaches the preset shutdown temperature if the current compartment temperature does not reach the preset shutdown temperature within the preset duration.
The invention also provides a control device of the compressor of the inverter refrigerator, which comprises: the system comprises a processor and a memory connected with the processor;
the memory is used for storing a computer program, and the computer program is at least used for executing the control method of the compressor of the inverter refrigerator;
the processor is used for calling and executing the computer program.
The invention also provides a variable frequency refrigerator, which comprises: the refrigerator comprises a refrigerator shell, a refrigerating unit, a compressor and control equipment of the compressor of the variable frequency refrigerator;
the control equipment of the refrigerating unit, the compressor and the compressor of the variable frequency refrigerator are all arranged in the refrigerator shell;
and the control equipment of the refrigerating unit and the control equipment of the compressor of the variable-frequency refrigerator are respectively connected with the compressor.
A control method, a device and equipment for a compressor of an inverter refrigerator and the inverter refrigerator are disclosed, and the method comprises the following steps: acquiring the current compartment temperature of the refrigerator in real time; detecting a current operation state of the compressor; if the current running state represents the preset special running, determining the maximum gear rotating speed in the preset gear rotating speed association rule as the current running rotating speed of the compressor so as to control the compressor to run until the current compartment temperature reaches the preset shutdown temperature; if the current running state represents normal running, determining a preset reference rotating speed as the current running rotating speed so as to control the compressor to perform rotating speed transition running; and adjusting the current running rotating speed of the compressor according to the current compartment temperature and the preset starting temperature until the current compartment temperature reaches the preset stopping temperature. By adopting the technical scheme of the invention, when the compressor is electrified for the first time during normal operation, the compressor can be controlled to operate at the preset reference rotating speed, and the operating rotating speed is adjusted after the operating rotating speed is stable, so that rotating speed transition is realized, the phenomenon that the compressor trips because the rotating speed is too large during the first time electrification triggers an overcurrent protection mechanism is avoided, and the operation stability and reliability of the compressor and the service life of the compressor are improved.
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 invention, as claimed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a control method for a compressor of an inverter refrigerator according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a control device for a compressor of an inverter refrigerator according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a control device for a compressor of an inverter refrigerator according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an embodiment of the inverter refrigerator according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Fig. 1 is a flowchart provided in an embodiment of a method for controlling an inverter refrigerator compressor according to the present invention, and as shown in fig. 1, the method for controlling an inverter refrigerator compressor of the present embodiment specifically includes the following steps:
and S101, acquiring the current compartment temperature of the refrigerator in real time.
In this embodiment, when the compressor is controlled to operate, the current compartment temperature of the refrigerator needs to be acquired in real time.
S102, detecting the current running state of the compressor.
In this embodiment, the current operating state of the compressor needs to be detected. The current running state comprises preset special running and normal running, and the preset special running comprises first running or special function running after defrosting. The special functions include: a quick cooling function, a quick freezing function, a refrigerator self-checking function or a function when entering a maintenance program.
S103, if the current running state indicates that special running is preset, determining the maximum gear rotating speed in the preset gear rotating speed association rule as the current running rotating speed of the compressor so as to control the compressor to run until the current compartment temperature reaches the preset shutdown temperature.
If the current running state of the compressor is detected to indicate that the compressor is operated for the first time after defrosting or operated with a special function, a preset gear rotating speed association rule needs to be acquired. According to different types of compressors, the rotating speed setting is different, so that the gear rotating speed association rules are different, and the rotating speed setting is determined based on the reference rotating speed. Table 1 is a gear speed association rule map, as shown in fig. 1, the gear speed association rule is a preset rotation speed corresponding to each gear, and the gear and the rotation speed in the table are set based on a reference rotation speed of 2550 rmp.
| Gear position | Rotational speed (rmp) |
| S0 | 1320 |
| S1 | 1680 |
| S2 | 1800 |
| S3 | 2220 |
| S4 | 2580 |
| S5 | 3000 |
| S6 | 3420 |
| S7 | 3840 |
| S8 | 4200 |
TABLE 1
In this embodiment, when the current operating state indicates that special operation is preset, after the gear rotation speed association rule is obtained, the maximum gear rotation speed corresponding to the maximum gear in the gear rotation speed association rule is used as the current operating rotation speed of the compressor, so that the compressor is controlled to operate at the maximum gear rotation speed. And whether the current compartment temperature reaches the preset shutdown temperature needs to be detected in real time, and the compressor is controlled to stop running after the current compartment temperature is reduced to the preset shutdown temperature. The preset shutdown temperature is determined in advance according to a preset refrigeration temperature set by a user, and for example, the preset shutdown temperature may be set to be lower than the preset refrigeration temperature by one degree. The present embodiment does not limit the setting manner of the preset shutdown temperature.
In addition, the present embodiment may further detect whether the current operation state indicates first operation after defrosting, and if not, detect whether the current operation state indicates special function operation. The present embodiment does not limit the determination sequence of the current operation state.
And S104, if the current running state indicates normal running, determining the preset reference rotating speed as the current running rotating speed so as to control the compressor to perform rotating speed transition running.
And if the current running state is detected to indicate normal running, taking the preset reference rotating speed as the current running rotating speed, so as to control the compressor to perform rotating speed transition running at the preset reference rotating speed when being electrified for the first time. Therefore, the rotating speed transition can be realized, the phenomenon that the rotating speed of the compressor is too large to trigger an overcurrent protection mechanism when the compressor is electrified for the first time is avoided, the compressor is enabled to jump, the running stability and reliability of the compressor are improved, and the service life of the compressor is prolonged.
Further, the method specifically comprises the following steps:
firstly, taking a preset reference rotating speed as a current operating rotating speed;
secondly, determining the rotating speed transition duration according to the pre-acquired current environment temperature and a preset comparison temperature;
specifically, first, it is determined whether the pre-acquired current ambient temperature is less than a preset comparison temperature. If the current environment temperature is not less than the preset comparison temperature, taking the first transition duration as the rotation speed transition duration; and if the current environment temperature is less than the preset comparison temperature, taking the second transition time length as the rotating speed transition time length. Wherein, the temperature of the refrigerator external environment is obtained by a temperature sensor arranged on the refrigerator when the current environment temperature is reached. The preset comparison temperature, the first transition duration and the second transition duration are also set based on the preset reference rotation speed. If the preset reference rotation speed is 2550rmp, the preset comparison temperature is set to 36 ℃, the first transition period is set to 5min, and the second transition period is set to 20 s.
And thirdly, controlling the compressor to perform rotating speed transition operation at the current operating rotating speed within the rotating speed transition duration.
The step is to control the rotating speed transition time according to the external environment temperature, if the external environment temperature is high, such as summer, the rotating speed transition time of the compressor is longer, and if the external environment temperature is low, such as winter, the rotating speed transition time of the compressor is shorter.
And S105, adjusting the current running rotating speed of the compressor according to the current compartment temperature and the preset starting temperature until the current compartment temperature reaches the preset stopping temperature.
After the compressor carries out the rotational speed transition, can realize the compressor steady operation, avoided the condition of compressor trip, later just in order to satisfy user's refrigeration request, according to current compartment temperature and predetermine the start temperature, adjust the current operation rotational speed of compressor, until current compartment temperature reaches and predetermines shutdown temperature.
Further, the method specifically comprises the following steps:
firstly, according to the current compartment temperature and the preset starting temperature, within the preset upshifting duration, temperature difference upshifting adjustment is carried out on the current operating rotating speed to obtain a temperature difference upshifting operating rotating speed, so that the compressor operates according to the temperature difference upshifting operating rotating speed.
Specifically, a current temperature difference between the current compartment temperature and the preset boot temperature needs to be determined first. The preset starting temperature is determined according to the preset refrigeration temperature set by a user, when the compressor reaches the preset shutdown temperature and is shut down, the current compartment temperature rises, and when the current compartment temperature rises to the preset starting temperature, the compressor is started to continue to operate.
And then, determining the gear-up number corresponding to the current temperature difference value by using a preset association rule of the temperature difference and the gear-up number. The association rule of the temperature difference and the number of upshifts is the relationship between the temperature difference and the number of upshifts, and the current temperature difference value can be matched with the association rule, so that the number of upshifts corresponding to the current temperature difference value is determined. For example, the number of steps is 1 step at a temperature difference of 2 to 4 ℃ and 2 steps at a temperature difference of 4 to 6 ℃. The association rule between the temperature difference and the number of upshift is also set based on the preset reference rotation speed, and the specific numerical value of the association rule between the temperature difference and the number of upshift is not limited in this embodiment.
And finally, determining the temperature difference upshift operation speed after the current operation speed is adjusted according to the upshift number by using a gear speed association rule within the preset upshift duration so that the compressor operates according to the temperature difference upshift operation speed. For example, if the number of upshifts is 2, according to the gear rotation speed association rule, the gear corresponding to the current operating rotation speed is added with the post-upshift gear after 2, and then the rotation speed corresponding to the post-upshift gear is used as the temperature difference upshift operating rotation speed. The preset upshift duration is also set based on the preset reference rotating speed, and is 3min under the condition that the preset reference rotating speed is 2550 rmp.
And secondly, if the temperature of the current compartment does not reach the preset shutdown temperature after the preset duration, performing stage upshifting adjustment on the temperature difference upshifting operation speed until the temperature of the current compartment reaches the preset shutdown temperature.
If the temperature of the current compartment does not reach the preset shutdown temperature after the preset duration, the stage upshift adjustment of the temperature difference upshift operation speed of the current operation of the compressor needs to be continuously performed until the current compartment temperature reaches the preset shutdown temperature. The set duration is also set based on a preset reference rotating speed, and the preset upshift duration is 60min under the condition that the preset reference rotating speed is 2550 rmp.
And controlling the compressor to stop if the current compartment temperature reaches the preset stop temperature within a preset time period. And controlling the compressor to be started until the current compartment temperature reaches the preset starting temperature, wherein the running state of the compressor represents normal running at the moment, and continuously circulating the step of controlling the running rotating speed of the compressor.
Specifically, the method for adjusting the temperature difference upshift operation speed in the phase upshift mode until the current compartment temperature reaches the preset shutdown temperature specifically comprises the following steps:
if the temperature of the current compartment does not reach the preset shutdown temperature after the preset duration, whether the temperature difference upshift operation rotating speed is the maximum gear rotating speed in the gear rotating speed association rule needs to be judged. If the temperature difference upshifting operation rotating speed is judged to be the maximum gear rotating speed, the current operation rotating speed of the compressor is already the maximum rotating speed, and upshifting cannot be continued, then the compressor is controlled to operate at the temperature difference upshifting operation rotating speed (namely the maximum gear rotating speed), and the compressor is controlled to stop until the current compartment temperature reaches the preset stop temperature.
If the temperature difference upshift operation temperature is judged not to be the maximum gear rotation speed, the current operation rotation speed of the compressor is not yet the maximum rotation speed, the gear number corresponding to the temperature difference upshift operation rotation speed is increased by one gear every preset duration by using a gear rotation speed association rule, and the stage upshift operation rotation speed after the gear number is increased is obtained, so that the compressor operates according to the stage upshift operation rotation speed, and the stage upshift is not performed any more until the stage upshift operation rotation speed reaches the maximum gear rotation speed. In addition, during the stage upshift, if the current compartment temperature reaches the preset shutdown temperature, the compressor is directly controlled to shutdown.
In addition, in this embodiment, if the compressor is operated for the first time after defrosting, the operating state of the compressor after the compressor is started is the normal operating state when the current compartment temperature reaches the preset shutdown temperature and the current compartment temperature rises to the preset startup temperature again after the compressor is shutdown.
According to the control method of the compressor of the variable frequency refrigerator, the current compartment temperature of the refrigerator is acquired in real time; detecting a current operation state of the compressor; if the current running state represents the preset special running, determining the maximum gear rotating speed in the preset gear rotating speed association rule as the current running rotating speed of the compressor so as to control the compressor to run until the current compartment temperature reaches the preset shutdown temperature; if the current running state represents normal running, determining a preset reference rotating speed as the current running rotating speed so as to control the compressor to perform rotating speed transition running; and adjusting the current running rotating speed of the compressor according to the current compartment temperature and the preset starting temperature until the current compartment temperature reaches the preset stopping temperature. By adopting the technical scheme of the embodiment, when the compressor is electrified for the first time in normal operation, the compressor can be controlled to operate at the preset reference rotating speed, and the operating rotating speed is adjusted after the operating rotating speed is stable, so that rotating speed transition is realized, the phenomenon that the rotating speed is too large to trigger an overcurrent protection mechanism when the compressor is electrified for the first time is avoided, the compressor is tripped, and the operation stability and reliability of the compressor and the service life of the compressor are improved.
In order to be more comprehensive, the application also provides a control device of the compressor of the inverter refrigerator, which corresponds to the control method of the compressor of the inverter refrigerator provided by the embodiment of the invention.
Fig. 2 is a schematic structural diagram of a control device of an inverter refrigerator compressor according to an embodiment of the present invention, and as shown in fig. 2, the control device of the inverter refrigerator compressor of the embodiment includes: the device comprises an acquisition module 11, a detection module 12, a determination module 13 and an adjustment module 14;
the acquisition module 11 is used for acquiring the current compartment temperature of the refrigerator in real time;
the detection module 12 is used for detecting the current running state of the compressor;
the determining module 13 is configured to determine, if the current operating state indicates a preset special operation, that a maximum gear rotation speed in a preset gear rotation speed association rule is a current operating rotation speed of the compressor, so as to control the compressor to operate until a current compartment temperature reaches a preset shutdown temperature;
the determining module 13 is further configured to determine a preset reference rotating speed as the current operating rotating speed if the current operating state indicates normal operation, so as to control the compressor to perform rotating speed transition operation;
and the adjusting module 14 is configured to adjust the current operating speed of the compressor according to the current compartment temperature and the preset startup temperature until the current compartment temperature reaches the preset shutdown temperature.
The control device of the compressor of the variable frequency refrigerator can control the compressor to operate at a preset reference rotating speed firstly when the compressor is electrified for the first time in normal operation, and then adjust the operating rotating speed after the operating rotating speed is stable, so that rotating speed transition is realized, an overcurrent protection mechanism is prevented from being triggered too much when the compressor is electrified for the first time, the compressor is tripped, and the running stability and reliability of the compressor and the service life of the compressor are improved.
Further, in the control apparatus of the compressor of the inverter refrigerator of the present embodiment, the determining module 13 includes: the device comprises a rotating speed determining unit, a time length determining unit and a control unit.
The rotating speed determining unit is used for taking a preset reference rotating speed as the current operating rotating speed;
the duration determining unit is used for determining the rotating speed transition duration according to the pre-acquired current environment temperature and the preset comparison temperature;
and the control unit is used for controlling the compressor to perform rotating speed transition operation at the current operating rotating speed within the rotating speed transition duration.
Further, in the control device of the compressor of the inverter refrigerator of the embodiment, the duration determining unit is specifically configured to determine whether the current ambient temperature is less than a preset comparison temperature; if the current environment temperature is not less than the preset comparison temperature, taking the first transition duration as the rotation speed transition duration; and if the current environment temperature is less than the preset comparison temperature, taking the second transition duration as the rotation speed transition duration.
Further, in the control device of the compressor of the inverter refrigerator of the embodiment, the adjusting module 14 includes: a temperature difference upshift adjusting unit and a stage upshift adjusting unit.
The temperature difference upshift adjusting unit is used for performing temperature difference upshift adjustment on the current operating rotating speed within a preset upshift duration according to the current compartment temperature and a preset starting temperature to obtain a temperature difference upshift operating rotating speed so that the compressor operates according to the temperature difference upshift operating rotating speed;
and the stage upshift adjusting unit is used for performing stage upshift adjustment on the temperature difference upshift operation rotating speed until the current compartment temperature reaches the preset shutdown temperature if the current compartment temperature does not reach the preset shutdown temperature within the preset duration.
Further, in the control device of the compressor of the inverter refrigerator of the embodiment, the temperature difference upshift adjusting unit is specifically configured to determine a current temperature difference value between a current compartment temperature and a preset starting temperature; determining the gear-up number corresponding to the current temperature difference value by using a preset association rule of the temperature difference and the gear-up number; and within the preset upshifting duration, determining the temperature difference upshifting operation speed after the current operation speed is adjusted according to the upshifting number by using a gear speed association rule, so that the compressor operates according to the temperature difference upshifting operation speed.
Further, in the control device of the compressor of the inverter refrigerator of the embodiment, the stage upshift adjusting unit is specifically configured to determine whether the temperature difference upshift operating rotational speed is the maximum gear rotational speed in the gear rotational speed association rule; if the temperature difference upshifting operation rotating speed is the maximum gear rotating speed, controlling the compressor to operate at the temperature difference upshifting operation rotating speed until the current compartment temperature reaches a preset shutdown temperature; if the temperature difference upshift operation rotating speed is not the maximum gear rotating speed, the gear number corresponding to the temperature difference upshift operation rotating speed is increased by one gear every preset duration by using a gear rotating speed association rule to obtain a stage upshift operation rotating speed after the gear number is increased, so that the compressor operates according to the stage upshift operation rotating speed until the stage upshift operation rotating speed reaches the maximum gear rotating speed.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 3 is a schematic structural diagram of an embodiment of the control device of the compressor of the inverter refrigerator according to the present invention, and as shown in fig. 3, the control device of the compressor of the inverter refrigerator according to the present embodiment includes a processor 21 and a memory 22 connected to the processor 21; the memory 22 is used for storing a computer program at least for executing the control method of the compressor of the inverter refrigerator of the above embodiment; the processor 21 is used to call and execute the computer program.
The control equipment of the frequency conversion refrigerator compressor of the embodiment can control the compressor to operate at a preset reference rotating speed firstly when the compressor is electrified for the first time in normal operation, and then adjusts the operating rotating speed after the operating rotating speed is stable, so that rotating speed transition is realized, an overcurrent protection mechanism is prevented from being triggered too much when the compressor is electrified for the first time, the compressor is tripped, and the running stability and reliability of the compressor and the service life of the compressor are improved.
Fig. 4 is a schematic structural diagram provided by an embodiment of the inverter refrigerator of the present invention, and as shown in fig. 4, the inverter refrigerator of the present embodiment includes: a refrigerator shell 34, a refrigerating unit 31, a compressor 32 and a control device 33 of the compressor of the inverter refrigerator described in the above embodiment. The refrigerating unit 31, the compressor 32 and the control device 33 of the compressor of the inverter refrigerator are all arranged inside the refrigerator shell 34; the refrigerating unit 31 and the control device 33 of the compressor of the inverter refrigerator are respectively connected with the compressor 32.
The frequency conversion refrigerator of this embodiment, when the first power-on of compressor normal operating, can control the compressor and move with predetermineeing benchmark rotational speed earlier, wait to move the rotational speed and adjust the operating speed again after stable to realize the rotational speed transition, avoid the rotational speed too big overcurrent protection mechanism that triggers when first power-on, the machine is jumped to the compressor appearance, has improved the compressor operation's stationarity, reliability and compressor's life.
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 the terms "first," "second," and the like in the description of the present invention 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 invention, 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 alternate implementations are included within the scope of the preferred embodiment of the present invention 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 invention.
It should be understood that portions of the present invention 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 invention 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, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 invention. 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 invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (12)
1. A control method of a compressor of an inverter refrigerator is characterized by comprising the following steps:
acquiring the current compartment temperature of the refrigerator in real time;
detecting a current operation state of the compressor;
if the current running state represents preset special running, determining the maximum gear rotating speed in a preset gear rotating speed association rule as the current running rotating speed of the compressor so as to control the compressor to run until the current compartment temperature reaches a preset shutdown temperature;
if the current running state represents normal running, determining a preset reference rotating speed as the current running rotating speed so as to control the compressor to perform rotating speed transition running;
and adjusting the current running rotating speed of the compressor according to the current compartment temperature and a preset starting temperature until the current compartment temperature reaches a preset stopping temperature.
2. The method for controlling the compressor of the inverter refrigerator according to claim 1, wherein the determining a preset reference rotation speed as the current operation rotation speed to control the compressor to perform a rotation speed transition operation comprises:
taking the preset reference rotating speed as the current operating rotating speed;
determining the rotating speed transition duration according to the pre-acquired current environment temperature and the preset comparison temperature;
and controlling the compressor to perform rotating speed transition operation at the current operating rotating speed within the rotating speed transition duration.
3. The method for controlling the compressor of the inverter refrigerator according to claim 2, wherein the determining the rotation speed transition duration according to the pre-obtained current ambient temperature and the preset comparison temperature comprises:
judging whether the current environment temperature is lower than the preset contrast temperature or not;
if the current environment temperature is not less than the preset comparison temperature, taking a first transition duration as the rotating speed transition duration;
and if the current environment temperature is smaller than the preset comparison temperature, taking a second transition duration as the rotating speed transition duration.
4. The method for controlling the compressor of the inverter refrigerator according to claim 1, wherein the adjusting the current operating speed of the compressor according to the current compartment temperature and the preset starting temperature until the current compartment temperature reaches the preset stopping temperature comprises:
according to the current compartment temperature and the preset starting temperature, within a preset gear-up duration, performing temperature difference gear-up adjustment on the current operating rotating speed to obtain a temperature difference gear-up operating rotating speed, so that the compressor operates according to the temperature difference gear-up operating rotating speed;
and if the current compartment temperature does not reach the preset shutdown temperature after the preset duration, performing stage upshift adjustment on the temperature difference upshift operation rotating speed until the current compartment temperature reaches the preset shutdown temperature.
5. The method for controlling the compressor of the inverter refrigerator according to claim 4, wherein the step of performing temperature difference upshift adjustment on the current operating speed according to the current compartment temperature and the preset starting temperature within a preset upshift duration to obtain a temperature difference upshift operating speed, so that the compressor operates according to the temperature difference upshift operating speed comprises the steps of:
determining a current temperature difference value between the current compartment temperature and the preset starting temperature;
determining the gear-up number corresponding to the current temperature difference value by utilizing a preset association rule of the temperature difference and the gear-up number;
and within a preset gear-up duration, determining the temperature difference gear-up operating speed after the current operating speed is adjusted according to the gear-up number by utilizing the gear speed association rule, so that the compressor operates according to the temperature difference gear-up operating speed.
6. The method for controlling the compressor of the inverter refrigerator according to claim 4, wherein the step-up adjusting the temperature difference up-shift operation speed until the current compartment temperature reaches the preset shutdown temperature comprises:
judging whether the temperature difference upshift operation rotating speed is the maximum gear rotating speed in the gear rotating speed association rule or not;
if the temperature difference upshifting operation rotating speed is the maximum gear rotating speed, controlling the compressor to operate at the temperature difference upshifting operation rotating speed until the current compartment temperature reaches the preset shutdown temperature;
if the temperature difference upshift operation rotating speed is not the maximum gear rotating speed, the gear rotating speed association rule is utilized, the gear number corresponding to the temperature difference upshift operation rotating speed is increased by one gear every other than the preset duration time, and the stage upshift operation rotating speed after the gear number is increased is obtained, so that the compressor operates according to the stage upshift operation rotating speed until the stage upshift operation rotating speed reaches the maximum gear rotating speed.
7. The method as claimed in claim 1, wherein the preset special operation comprises: after defrosting, the operation is carried out for the first time or the operation with special functions.
8. A control device of a compressor of an inverter refrigerator is characterized by comprising: the device comprises an acquisition module, a detection module, a determination module and an adjustment module;
the acquisition module is used for acquiring the current compartment temperature of the refrigerator in real time;
the detection module is used for detecting the current running state of the compressor;
the determining module is used for determining the maximum gear rotating speed in a preset gear rotating speed association rule as the current operating rotating speed of the compressor if the current operating state represents the preset special operation, so as to control the compressor to operate until the current compartment temperature reaches the preset shutdown temperature;
the determining module is further configured to determine a preset reference rotating speed as the current operating rotating speed if the current operating state indicates normal operation, so as to control the compressor to perform rotating speed transition operation;
the adjusting module is used for adjusting the current running rotating speed of the compressor according to the current compartment temperature and the preset starting temperature until the current compartment temperature reaches the preset stopping temperature.
9. The apparatus for controlling a compressor of an inverter refrigerator according to claim 8, wherein the determining module comprises: the device comprises a rotating speed determining unit, a duration determining unit and a control unit;
the rotating speed determining unit is used for taking the preset reference rotating speed as the current operating rotating speed;
the duration determining unit is used for determining the rotating speed transition duration according to the pre-acquired current environment temperature and the preset comparison temperature;
and the control unit is used for controlling the compressor to perform rotating speed transition operation at the current operating rotating speed within the rotating speed transition duration.
10. The control device for compressor of inverter refrigerator as claimed in claim 8, wherein the adjusting module comprises: a temperature difference upshift adjusting unit and a stage upshift adjusting unit;
the temperature difference upshift adjusting unit is used for performing temperature difference upshift adjustment on the current operating rotating speed within a preset upshift duration according to the current compartment temperature and the preset starting temperature to obtain a temperature difference upshift operating rotating speed so that the compressor operates according to the temperature difference upshift operating rotating speed;
and the stage upshift adjusting unit is used for performing stage upshift adjustment on the temperature difference upshift operating rotating speed until the current compartment temperature reaches the preset shutdown temperature if the current compartment temperature does not reach the preset shutdown temperature within the preset duration.
11. A control device of a compressor of an inverter refrigerator, comprising: the system comprises a processor and a memory connected with the processor;
the memory is used for storing a computer program at least for executing the control method of the compressor of the inverter refrigerator according to any one of claims 1 to 7;
the processor is used for calling and executing the computer program.
12. A variable frequency refrigerator is characterized by comprising: a refrigerator case, a refrigerating unit, a compressor, and a control apparatus of the compressor of the inverter refrigerator according to claim 11;
the control equipment of the refrigerating unit, the compressor and the compressor of the variable frequency refrigerator are all arranged in the refrigerator shell;
and the control equipment of the refrigerating unit and the control equipment of the compressor of the variable-frequency refrigerator are respectively connected with the compressor.
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