CN110966836A - Refrigerator and compressor control system thereof - Google Patents
Refrigerator and compressor control system thereof Download PDFInfo
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- CN110966836A CN110966836A CN201811152155.1A CN201811152155A CN110966836A CN 110966836 A CN110966836 A CN 110966836A CN 201811152155 A CN201811152155 A CN 201811152155A CN 110966836 A CN110966836 A CN 110966836A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
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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
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
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- Combustion & Propulsion (AREA)
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides a refrigerator and a compressor control system thereof, wherein the control system comprises: a variable frequency compressor; the temperature detection module is used for detecting the temperature of the chamber of the refrigerator to generate a chamber temperature detection signal; the control panel is arranged on the refrigerator body of the refrigerator and receives refrigeration demand information input by a user; and the variable frequency controller is respectively connected with the temperature detection module, the control panel and the variable frequency compressor, and controls the running state of the variable frequency compressor according to the cavity temperature detection signal and the refrigeration demand information so as to enable the cavity temperature of the refrigerator to meet the refrigeration demand information. The compressor control system of the refrigerator provided by the embodiment of the invention can realize frequency conversion control on the refrigerator without the main control board, and can realize quick and accurate control on the temperature of the refrigerator according to the temperature of the cavity of the refrigerator and refrigeration demand information, thereby being beneficial to the improvement of the refrigeration performance and energy efficiency of the refrigerator.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a refrigerator and a compressor control system thereof.
Background
With the implementation of national standards for mandatory performance and efficiency levels of household refrigerators, the demand for improving the energy efficiency level of refrigerators is becoming stronger. The inverter compressor adopting the inverter control technology has great advantages in energy conservation, and therefore, the inverter compressor is more and more widely used in refrigerators. However, for the conventional constant speed refrigerator without a main control board, the conventional structure and electrical architecture are changed, and the main control board is added to adapt to the inverter compressor, which requires a large investment cost.
At present, the frequency conversion scheme in the related art generally includes that a mechanical temperature controller on a refrigerator is used, and the on and off of the mechanical temperature controller is transmitted to a frequency conversion controller as a control signal to control the operation state of the frequency conversion compressor. However, the related art has problems in that, on one hand, the mechanical thermostat can only provide a switching signal, and the variable speed regulation of the compressor is realized by the control logic of the variable frequency controller, so that the temperature of the refrigerator cannot be controlled quickly and accurately; on the other hand, the mechanical temperature controller is connected with a mains supply, and certain electromagnetic interference can be brought by the on and off of the mechanical temperature controller.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
To this end, a first object of the present invention is to provide a compressor control system for a refrigerator, which can achieve frequency conversion control of the refrigerator and precise control of the temperature of the refrigerator without using a main control board and a mechanical thermostat.
The second purpose of the invention is to provide a refrigerator.
To achieve the above object, a first embodiment of the present invention provides a compressor control system for a refrigerator, including: a variable frequency compressor; the temperature detection module is used for detecting the chamber temperature of the refrigerator to generate a chamber temperature detection signal; the control panel is arranged on the refrigerator body of the refrigerator and receives refrigeration demand information input by a user; the variable frequency controller is connected with the temperature detection module, the control panel and the variable frequency compressor respectively, and the variable frequency controller controls the running state of the variable frequency compressor according to the cavity temperature detection signal and the refrigeration demand information so that the cavity temperature of the refrigerator meets the refrigeration demand information.
According to the compressor control system of the refrigerator provided by the embodiment of the invention, the chamber temperature of the refrigerator is detected through the temperature detection module to generate the chamber temperature detection signal, the refrigeration demand information input by a user is received through the control panel, and then the variable frequency controller controls the running state of the variable frequency compressor according to the chamber temperature detection signal and the refrigeration demand information, so that the chamber temperature of the refrigerator meets the refrigeration demand information. Therefore, the compressor control system of the refrigerator provided by the embodiment of the invention can realize frequency conversion control on the refrigerator without the main control board, and can realize quick and accurate control of the temperature of the refrigerator according to the temperature of the cavity of the refrigerator and refrigeration demand information, thereby being beneficial to improvement of the refrigeration performance and energy efficiency of the refrigerator.
According to one embodiment of the invention, the variable frequency controller comprises: the signal processing module is connected with the temperature detection module and is used for processing the chamber temperature detection signal output by the temperature detection module; the communication module is communicated with the control panel to receive the refrigeration demand information; the driving module is connected with the variable-frequency compressor to drive the variable-frequency compressor; the main control module is connected with the signal processing module, the communication module and the driving module, and the main control module controls the driving module according to the chamber temperature detection signal processed by the signal processing module and the refrigeration demand information received by the communication module so as to control the running state of the variable frequency compressor through the driving module.
According to an embodiment of the present invention, the variable frequency controller further comprises: the input end of the rectification filter module is connected with an alternating current power supply, the output end of the rectification filter module is connected with the driving module, the rectification filter module is used for carrying out rectification filter processing on alternating current provided by the alternating current power supply so as to output direct current to the driving module, and the driving module carries out inversion processing on the direct current so as to output three-phase alternating current to the variable frequency compressor.
According to an embodiment of the present invention, the variable frequency controller further comprises: and the power supply module is connected with the output end of the rectification filtering module and is used for converting the direct current output by the rectification filtering module into at least one preset direct current so as to supply power to the variable frequency controller.
According to one embodiment of the invention, the temperature detection module comprises a plurality of paths of chamber temperature detection units, and the plurality of paths of chamber temperature detection units respectively correspondingly detect a plurality of chamber temperatures of the refrigerator so as to generate corresponding chamber temperature detection signals; the signal processing module comprises a plurality of signal processing circuits, the plurality of signal processing circuits are correspondingly connected with the plurality of chamber temperature detection units respectively, and each signal processing circuit processes the chamber temperature detection signals output by the corresponding temperature detection unit.
According to an embodiment of the present invention, each of the signal processing circuits includes a voltage dividing unit, the voltage dividing unit is connected to the corresponding chamber temperature detection unit, and the voltage dividing unit is configured to convert the chamber temperature detection signal output by the corresponding chamber temperature detection unit into a voltage signal and provide the voltage signal to the main control module.
According to an embodiment of the present invention, the temperature detection module further includes an ambient temperature detection unit disposed on the refrigerator body, the ambient temperature detection unit is connected to the variable frequency controller, and the ambient temperature detection unit is configured to detect an ambient temperature of the refrigerator to generate an ambient temperature detection signal, so that the variable frequency controller controls an operation state of the variable frequency compressor according to the ambient temperature detection signal, the chamber temperature detection signal, and the refrigeration demand information.
According to one embodiment of the invention, the temperature detection module and the control panel are both subjected to insulation treatment.
According to one embodiment of the present invention, the temperature detection module and the control panel are covered with an insulating paste to perform an insulating process.
In order to achieve the above object, a second aspect of the present invention provides a refrigerator, including the compressor control system of the refrigerator.
According to the refrigerator provided by the embodiment of the invention, the frequency conversion control of the refrigerator can be realized by arranging the compressor control system of the refrigerator, and meanwhile, the temperature of the refrigerator can be quickly and accurately controlled according to the temperature of the cavity of the refrigerator and the refrigeration demand information, so that the refrigeration performance and the energy efficiency of the refrigerator can be improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a block schematic diagram of a compressor control system of a refrigerator according to an embodiment of the present invention;
FIG. 2 is a block schematic diagram of a compressor control system for a refrigerator according to one embodiment of the present invention;
fig. 3 is a block schematic diagram of a compressor control system of a refrigerator according to another embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a signal processing circuit in a compressor control system of a refrigerator according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A refrigerator and a compressor control system thereof according to embodiments of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a block diagram schematically illustrating a compressor control system of a refrigerator according to an embodiment of the present invention. As shown in fig. 1, a compressor control system of a refrigerator according to an embodiment of the present invention includes: the variable frequency compressor 10, the temperature detection module 20, the control panel 30 and the variable frequency controller 40.
The temperature detection module 20 is configured to detect a chamber temperature of the refrigerator to generate a chamber temperature detection signal; the control panel 30 is arranged on the refrigerator body of the refrigerator, and the control panel 30 receives refrigeration demand information input by a user; the variable frequency controller 40 is connected with the temperature detection module 20, the control panel 30 and the variable frequency compressor 10 respectively, and the variable frequency controller 40 controls the operation state of the variable frequency compressor 10 according to the chamber temperature detection signal and the refrigeration demand information, so that the chamber temperature of the refrigerator meets the refrigeration demand information.
It will be appreciated that the refrigeration demand information may include refrigeration temperatures, for example for a refrigerator having a plurality of compartments, the refrigeration temperatures may include refrigeration temperatures of the plurality of compartments, such as refrigeration temperatures of a freezer compartment, refrigeration temperatures of a fresh food compartment, and the like.
In some embodiments, a user may set a desired refrigeration temperature through the control panel 30, the control panel 30 generates refrigeration demand information according to the refrigeration temperature and sends the refrigeration demand information to the inverter controller 40 through a connection line, and after the inverter controller 40 receives the refrigeration demand information, the inverter controller may control an operation state of the inverter compressor 10 according to the chamber temperature detection signal and the refrigeration demand information and in combination with a preset control strategy, so as to meet the refrigeration demand.
Therefore, the compressor control system of the refrigerator provided by the embodiment of the invention can realize frequency conversion control on the refrigerator without the main control board, and can realize quick and accurate control of the temperature of the refrigerator according to the temperature of the cavity of the refrigerator and refrigeration demand information, thereby being beneficial to improvement of the refrigeration performance and energy efficiency of the refrigerator.
Specifically, as shown in fig. 2 to 3, according to an embodiment of the present invention, the variable frequency controller 40 includes: a signal processing module 401, a communication module 402, a driving module 403 and a main control module 404.
The signal processing module 401 is connected to the temperature detection module 20, and the signal processing module 401 is configured to process a chamber temperature detection signal output by the temperature detection module 20; the communication module 402 communicates with the control panel 30 to receive refrigeration demand information; the driving module 403 is connected with the inverter compressor 10 to drive the inverter compressor 10; the main control module 404 is connected to the signal processing module 401, the communication module 402 and the driving module 403, and the main control module 404 controls the driving module 403 according to the chamber temperature detection signal processed by the signal processing module 401 and the refrigeration demand information received by the communication module 402, so as to control the operation state of the inverter compressor 10 through the driving module 403.
That is, the chamber temperature detection signal generated by the temperature detection module 20 is connected to the signal processing module 401 of the variable frequency controller 40 through a connection line, and the refrigeration requirement information generated by the control panel 30 is transmitted to the communication module 402 of the variable frequency controller 40 through a connection line. The chamber temperature detection signal and the refrigeration requirement information are processed and converted and then transmitted to the main control module 404. The main control module 404 determines a control logic according to the detected refrigerator cavity temperature and the inputted refrigeration demand information, generates a control signal according to the control logic, and sends the control signal to the driving module 403, so that the driving module 403 controls the operation state of the inverter compressor 10 according to the control signal to meet the refrigeration demand.
Further, as shown in fig. 3, the variable frequency controller 40 further includes: the input end of the rectifying and filtering module 405 is connected to the ac power supply 50, the output end of the rectifying and filtering module 405 is connected to the driving module 403, the rectifying and filtering module 405 is configured to perform rectifying and filtering processing on the ac power provided by the ac power supply 50 to output a dc power to the driving module 403, wherein the driving module 403 performs inversion processing on the dc power to output a three-phase ac power to the inverter compressor 10.
The ac power supply 50 is a commercial power supply.
Further, as shown in fig. 3, the variable frequency controller 40 further includes: and the power supply module 406 is connected with the output end of the rectifying and filtering module 405, and the power supply module 406 is configured to convert the direct current output by the rectifying and filtering module 405 into at least one preset direct current so as to supply power to the variable frequency controller 40.
It is understood that the commercial power is converted into a dc power through the rectifying and filtering module 405, and the dc power is converted into a three-phase ac power through the driving module 403 to power the inverter compressor 10. Meanwhile, the dc power is further converted into at least one preset dc power by the power module 406 to power the variable frequency controller 40, for example, the signal processing module 401, the communication module 402 and the main control module 404 are powered, assuming that the signal processing module 401, the communication module 402 and the main control module 404 are powered by 5V, the power module 406 can convert the dc power converted by the rectifying and filtering module 405 into 5V dc power, assuming that the signal processing module 401 and the communication module 402 are powered by 5V and the main control module 404 is powered by 3.3V, the power module 406 can convert the dc power converted by the rectifying and filtering module 405 into 3.3V dc power and 5V dc power, thereby satisfying various power requirements.
According to an embodiment of the present invention, the temperature detecting module 20 includes a plurality of paths of chamber temperature detecting units, which respectively detect a plurality of chamber temperatures of the refrigerator to generate corresponding chamber temperature detecting signals; the signal processing module 401 includes multiple signal processing circuits, the multiple signal processing circuits are respectively and correspondingly connected to the multiple chamber temperature detection units, and each signal processing circuit processes the chamber temperature detection signals output by the corresponding temperature detection unit.
It should be noted that the temperature detecting module 20 may be disposed at the refrigerator body, and the multiple paths of chamber temperature detecting units may be disposed corresponding to the multiple chambers of the refrigerator respectively, so as to detect the chamber temperatures of the multiple chambers in the refrigerator body.
That is, each chamber temperature detection unit individually corresponds to one signal processing circuit. In other words, there is a one-to-one correspondence signal processing circuit for each chamber temperature detection unit. As one example, the refrigerator may include a refrigerating chamber and a freezing chamber, the temperature detection module 20 includes a first chamber temperature detection unit and a second chamber temperature detection unit, the first chamber temperature detection unit correspondingly detects a temperature of the refrigerating chamber to generate a refrigerating chamber temperature detection signal, and the second chamber temperature detection unit correspondingly detects a temperature of the freezing chamber to generate a freezing chamber temperature detection signal; correspondingly, the signal processing module 401 includes a first signal processing circuit connected to the first chamber temperature detection unit to process the refrigeration chamber temperature detection signal, and a second signal processing circuit connected to the second chamber temperature detection unit to process the freezing chamber temperature detection signal.
Therefore, the temperature acquisition and processing requirements of the refrigerating chamber and the freezing chamber of different refrigerators are met by adopting the multi-channel chamber temperature detection unit and the signal processing circuit, so that the temperature of the refrigerator can be quickly and accurately controlled.
According to an embodiment of the present invention, the temperature detecting module 20 further includes an ambient temperature detecting unit disposed on the refrigerator body, the ambient temperature detecting unit is connected to the variable frequency controller 40, and the ambient temperature detecting unit is configured to detect an ambient temperature of the refrigerator to generate an ambient temperature detecting signal, so that the variable frequency controller 40 controls the operation state of the variable frequency compressor 10 according to the ambient temperature detecting signal, the chamber temperature detecting signal, and the refrigeration requirement information.
It can be understood that the ambient temperature detecting unit may be connected to the signal processing module 401 of the frequency conversion controller 40, and the ambient temperature detecting unit may also correspond to one signal processing circuit separately.
That is, the ambient temperature detection signal generated by the ambient temperature detection unit is connected to the signal processing module 401 of the frequency conversion controller 40 through a connection line, processed and converted by the signal processing module 401, and then transmitted to the main control module 404. Furthermore, the main control module 404 can control the operation state of the inverter compressor 10 according to the detected temperature of the refrigerator cavity, the ambient temperature and the inputted refrigeration requirement information, and by combining with a preset control strategy, so as to satisfy the refrigeration requirement.
Therefore, the compressor control system of the refrigerator provided by the embodiment of the invention can realize frequency conversion control on the refrigerator without the main control board, and can realize quick and accurate control of the temperature of the refrigerator according to the temperature of the cavity of the refrigerator, the ambient temperature and the refrigeration demand information, thereby being beneficial to improvement of the refrigeration performance and energy efficiency of the refrigerator.
In some embodiments, each of the multi-channel chamber temperature detection unit and the ambient temperature detection unit may include a thermistor.
It will be appreciated that the thermistor exhibits different resistance values at different temperatures, i.e. the resistance value of the thermistor Rt varies with the temperature of the refrigerator compartment. The lead wires of the thermistors are connected with corresponding signal processing circuits.
Further, each signal processing circuit includes a voltage dividing unit, the voltage dividing unit is connected to the corresponding chamber temperature detection unit or the environment temperature detection unit, and the voltage dividing unit is configured to convert the chamber temperature detection signal output by the corresponding chamber temperature detection unit or the environment temperature detection signal output by the environment temperature detection unit into a voltage signal and provide the voltage signal to the main control module 404.
That is to say, the signal processing circuit converts the change of the resistance of the thermistor Rt into different voltage signals, so that the main control module 404 can collect and identify the voltage signals, and the main control module 404 calculates the corresponding chamber temperature value or the ambient temperature according to the voltage signals.
Specifically, fig. 4 is a schematic circuit diagram of each signal processing circuit in the compressor control system of the refrigerator according to one embodiment of the present invention, and as shown in fig. 4, the voltage dividing unit includes a first resistor R1, wherein one end of the first resistor R1 is connected to a first preset power VCC, the other end of the first resistor R1 is connected to one end of a thermistor Rt through a connector K, and the other end of the thermistor Rt is grounded through the connector K.
The signal processing circuit further comprises a filtering unit, and the filtering unit comprises a second resistor R2 and a capacitor C1. One end of the second resistor R2 is connected to the other end of the first resistor R1, the other end of the second resistor R2 is connected to one end of the capacitor C1, the other end of the capacitor C1 is grounded, a first node is arranged between the capacitor C1 and the second resistor R2, the first node is used for outputting a voltage signal to the main control module 404, and a second node is arranged between the first resistor R1 and the second resistor R2.
Specifically, the temperature detection unit, such as the thermistor Rt, converts the temperature in the refrigerator cavity into a resistance value, and then converts the resistance value into a voltage signal by dividing the voltage between the thermistor Rt and the first resistor R1, the voltage at the second node is the voltage divided by the first resistor R1 and the thermistor Rt, that is, the voltage on the thermistor Rt, and the voltage is filtered by the RC filter circuit formed by the second resistor R2 and the capacitor C1, so as to obtain a final voltage signal, which is provided to the main control module 404.
According to an embodiment of the present invention, the temperature detection module 20 and the control panel 30 are both subjected to an insulation process. Wherein the temperature detection module 20 and the control panel 30 are covered with an insulating paste to perform an insulating process.
It can be understood that, since the power supply of the variable frequency controller 40 is from the mains supply and the dc power rectified by the rectifying and filtering module 405, the power grounds of the variable frequency controller 40, the temperature detecting module 20 and the control panel 30 are all floating grounds. Therefore, the temperature detection module 20 and the control panel 30 need to be insulated to ensure that the electrical circuit of the variable frequency controller 40 does not contact with the external electrical conductor, thereby ensuring safety. In this embodiment, the temperature detection module 20 and the control panel 30 may be covered with an insulating adhesive to ensure the insulating property.
In summary, according to the compressor control system of the refrigerator provided by the embodiment of the invention, the temperature detection module detects the chamber temperature of the refrigerator to generate the chamber temperature detection signal, the control panel receives the refrigeration demand information input by the user, and then the inverter controller controls the operation state of the inverter compressor according to the chamber temperature detection signal and the refrigeration demand information, so that the chamber temperature of the refrigerator meets the refrigeration demand information. Therefore, the compressor control system of the refrigerator provided by the embodiment of the invention can realize frequency conversion control on the refrigerator without the main control board, and can realize quick and accurate control of the temperature of the refrigerator according to the temperature of the cavity of the refrigerator and refrigeration demand information, thereby being beneficial to improvement of the refrigeration performance and energy efficiency of the refrigerator.
Based on the compressor control system of the refrigerator in the embodiment, the embodiment of the invention also provides the refrigerator. The refrigerator comprises the compressor control system of the refrigerator.
As one example, the refrigerator may be a variable frequency refrigerator-freezer.
According to the refrigerator provided by the embodiment of the invention, the frequency conversion control of the refrigerator can be realized by arranging the compressor control system of the refrigerator, and meanwhile, the temperature of the refrigerator can be quickly and accurately controlled according to the temperature of the cavity of the refrigerator and the refrigeration demand information, so that the refrigeration performance and the energy efficiency of the refrigerator can be improved.
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 are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
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 steps of a custom logic function or 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.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
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. 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. 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 (10)
1. A compressor control system of a refrigerator, comprising:
a variable frequency compressor;
the temperature detection module is used for detecting the chamber temperature of the refrigerator to generate a chamber temperature detection signal;
the control panel is arranged on the refrigerator body of the refrigerator and receives refrigeration demand information input by a user;
the variable frequency controller is connected with the temperature detection module, the control panel and the variable frequency compressor respectively, and the variable frequency controller controls the running state of the variable frequency compressor according to the cavity temperature detection signal and the refrigeration demand information so that the cavity temperature of the refrigerator meets the refrigeration demand information.
2. The compressor control system of a refrigerator according to claim 1, wherein the inverter controller comprises:
the signal processing module is connected with the temperature detection module and is used for processing the chamber temperature detection signal output by the temperature detection module;
the communication module is communicated with the control panel to receive the refrigeration demand information;
the driving module is connected with the variable-frequency compressor to drive the variable-frequency compressor;
the main control module is connected with the signal processing module, the communication module and the driving module, and the main control module controls the driving module according to the chamber temperature detection signal processed by the signal processing module and the refrigeration demand information received by the communication module so as to control the running state of the variable frequency compressor through the driving module.
3. The compressor control system of the refrigerator according to claim 2, wherein the inverter controller further comprises:
the input end of the rectification filter module is connected with an alternating current power supply, the output end of the rectification filter module is connected with the driving module, the rectification filter module is used for carrying out rectification filter processing on alternating current provided by the alternating current power supply so as to output direct current to the driving module, and the driving module carries out inversion processing on the direct current so as to output three-phase alternating current to the variable frequency compressor.
4. The compressor control system of a refrigerator according to claim 1, wherein the inverter controller further comprises:
and the power supply module is connected with the output end of the rectification filtering module and is used for converting the direct current output by the rectification filtering module into at least one preset direct current so as to supply power to the variable frequency controller.
5. The compressor control system of a refrigerator according to claim 1,
the temperature detection module comprises a plurality of paths of chamber temperature detection units, and the plurality of paths of chamber temperature detection units respectively and correspondingly detect the temperatures of a plurality of chambers of the refrigerator so as to generate corresponding chamber temperature detection signals;
the signal processing module comprises a plurality of signal processing circuits, the plurality of signal processing circuits are correspondingly connected with the plurality of chamber temperature detection units respectively, and each signal processing circuit processes the chamber temperature detection signals output by the corresponding temperature detection unit.
6. The compressor control system of a refrigerator according to claim 5, wherein each of the signal processing circuits includes a voltage dividing unit, the voltage dividing unit is connected to the corresponding chamber temperature detecting unit, and the voltage dividing unit is configured to convert the chamber temperature detecting signal outputted from the corresponding chamber temperature detecting unit into a voltage signal and provide the voltage signal to the main control module.
7. The system as claimed in claim 1, wherein the temperature detecting module further comprises an ambient temperature detecting unit disposed on the refrigerator body, the ambient temperature detecting unit is connected to the inverter controller, and the ambient temperature detecting unit is configured to detect an ambient temperature of the refrigerator to generate an ambient temperature detecting signal, so that the inverter controller controls the operation state of the inverter compressor according to the ambient temperature detecting signal, the chamber temperature detecting signal and the refrigeration requirement information.
8. The compressor control system of a refrigerator according to claim 1, wherein the temperature sensing module and the control panel are each subjected to an insulation process.
9. The compressor control system of a refrigerator according to claim 8, wherein an insulation process is performed by covering the temperature detection module and the control panel with an insulation paste.
10. A refrigerator characterized by comprising the compressor control system of the refrigerator according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811152155.1A CN110966836A (en) | 2018-09-29 | 2018-09-29 | Refrigerator and compressor control system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811152155.1A CN110966836A (en) | 2018-09-29 | 2018-09-29 | Refrigerator and compressor control system thereof |
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| CN110966836A true CN110966836A (en) | 2020-04-07 |
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| CN201811152155.1A Pending CN110966836A (en) | 2018-09-29 | 2018-09-29 | Refrigerator and compressor control system thereof |
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Cited By (1)
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| CN113503684A (en) * | 2021-07-21 | 2021-10-15 | 珠海格力电器股份有限公司 | Refrigerator energy-saving control method, refrigerator and computer readable storage medium |
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