Refrigerator operation control method and refrigerator

Abstract

The invention relates to a refrigerator operation control method and a refrigerator, the refrigerator comprises a main control board, a display board and function modules, the main control board comprises an analog-to-digital conversion module, the main control board is used for driving the function modules to operate, and the method comprises the steps that operation parameters of the refrigerator are obtained based on the analog-to-digital conversion module, and the operation parameters are transmitted to the display board; and the display panel determines operation requirements of the functional modules based on the operation parameters, and connects or disconnects the functional modules and the corresponding power supplies according to the operation requirements. The method can reduce the operation power consumption of the refrigerator.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of refrigerator operation, and in particular, to a refrigerator operation control method and a refrigerator. BACKGROUND

[0002] With the relevant green development regulations, the energy consumption requirements for refrigerators are becoming higher and higher. As a household appliance that is always powered on, the standby power consumption and the running power consumption of the electric control board account for a certain proportion of the overall power consumption of the refrigerator. In particular, for high-efficiency refrigerator products, the reduction of standby and running power consumption of the electric control board contributes greatly to improving energy efficiency and reducing overall power consumption, and there is a great demand for implementation.

[0003] The power consumption reduction method of the electric control board of the refrigerator in the related art is only applicable to variable frequency refrigerators: in the case that there is no start request in the refrigerator compartment, the main control board powers off the separate variable frequency compressor drive board to reduce the overall power consumption; in the case that the main control board is a main variable integrated board, the variable frequency compressor drive part on the main variable integrated board is powered off to achieve the effect of reducing power consumption. The standby and running power consumption of the refrigerator in the related art is still relatively high, and there is still a demand for reducing the power consumption of the refrigerator.

[0004] In view of the problem of high running power consumption of the refrigerator in the related art, there is currently no effective solution. SUMMARY

[0005] Therefore, it is necessary to provide a refrigerator operation control method and a refrigerator capable of solving the problem of high running power consumption of the refrigerator in view of the above technical problems.

[0006] In a first aspect, a refrigerator operation control method is provided in the present embodiment, the refrigerator comprising a main control board, a display board and a function module, the main control board comprising an analog-to-digital conversion module, the main control board and the display board being used to control the operation of the corresponding function module, the method comprising:

[0007] obtaining, based on the analog-to-digital conversion module, an operating parameter of the refrigerator and transmitting the operating parameter to the display board;

[0008] determining, by the display board based on the operating parameter, the operating requirement of each function module, and turning on or turning off the connection between the function module and the corresponding power supply according to the operating requirement.

[0009] In some embodiments, the operating parameter of the refrigerator comprises the temperature of the refrigerator compartment, the refrigerator comprises a first power supply and a second power supply, the voltage of the first power supply is lower than the voltage of the second power supply, and the determining, by the display board based on the operating parameter, the operating requirement of each function module, and turning on or turning off the connection between the function module and the corresponding power supply according to the operating requirement comprises:

[0010] determining a first function module operating based on the first power supply when it is determined that the refrigerator does not have a refrigeration demand according to the temperature of the refrigerator compartment;

[0011] disconnecting the connection between the first function module and the first power supply.

[0012] In some embodiments, the operating parameter comprises a refrigerator door opening signal, the refrigerator comprises a first power supply and a second power supply, the voltage of the first power supply is lower than the voltage of the second power supply, the determination of the operating demand of each function module by the display panel based on the operating parameter and the turning on or turning off of the connection between the function module and the corresponding power supply according to the operating demand comprises:

[0013] determining whether the display panel receives the refrigerator door opening signal when the refrigerator does not have a refrigeration demand;

[0014] determining a first function module operating based on the first power supply in the refrigerator and a second function module operating based on the second power supply in the main control panel and the display panel when it is determined that the display panel does not receive the refrigerator door opening signal, and disconnecting the connection between the first function module and the first power supply and the connection between the second function module and the second power supply.

[0015] In some embodiments, the main control panel further comprises a variable frequency drive module for changing the speed of the compressor of the refrigerator, and the method further comprises:

[0016] disconnecting the connection between the variable frequency drive module and the corresponding power supply.

[0017] In some embodiments, the operating parameter further comprises an input signal of the display panel of the refrigerator, and the method further comprises:

[0018] determining whether the display panel receives the input signal;

[0019] when the display panel does not receive the input signal, performing the step of determining a first function module operating based on the first power supply in the refrigerator and a second function module operating based on the second power supply in the main control panel and the display panel.

[0020] In some embodiments, after determining whether the display panel receives the refrigerator door opening signal, the method further comprises:

[0021] When it is determined that the display panel receives the refrigerator door opening signal, the connection between the first function module and the first power supply and the connection between the second function module and the first power supply are turned on.

[0022] In some embodiments, the refrigerator further comprises a voltage reduction module, when the display panel inputs a first level signal to the voltage reduction module, the voltage reduction module outputs a voltage being the voltage of the first power supply; when the display panel inputs a second level signal to the voltage reduction module, the voltage reduction module outputs a voltage being the voltage of the second power supply, the display panel determines the operation requirement of each function module based on the operation parameter, and turns on or turns off the connection between the function module and the corresponding power supply according to the operation requirement, comprising:

[0023] When it is determined by the display panel based on the operation parameter that there is no operation requirement for the second function module running based on the second power supply, the first level signal is input to the voltage reduction module;

[0024] When it is determined by the display panel based on the operation parameter that there is no operation requirement for the first function module running based on the first power supply, the second level signal is input to the voltage reduction module.

[0025] In a second aspect, a refrigerator is provided in the present embodiment, the refrigerator comprising: a main control panel, a display panel and a function module, the main control panel comprising an analog-to-digital conversion module; wherein,

[0026] The main control panel is configured to control the operation of each function module connected thereto.

[0027] The analog-to-digital conversion module is configured to obtain the operation parameter of the refrigerator and transmit the operation parameter to the display panel.

[0028] The display panel is configured to control the operation of the function module connected thereto, and determine the operation requirement of the function module according to the operation parameter transmitted by the analog-to-digital conversion module, and turn on or turn off the connection between the function module and the corresponding power supply according to the operation requirement.

[0029] The function module is configured to realize one or more functions required for the operation of the refrigerator.

[0030] In some embodiments, the refrigerator further comprises a switch module, the switch module being connected with the display panel, the power supply of the refrigerator and the function module respectively; wherein,

[0031] The switch module turns on or turns off the connection between the main control panel and the corresponding power supply in response to the signal input by the display panel.

[0032] In some embodiments, the refrigerator further comprises a temperature and humidity module connected with the display panel; wherein,

[0033] The temperature and humidity module is configured to acquire temperature and humidity values in the refrigerator and transmit the temperature and humidity values to the display panel.

[0034] The above refrigerator operation control method and refrigerator avoid long-term operation of the main control panel by acquiring refrigerator operation parameters by the analog-to-digital conversion module in the main control panel when the refrigerator compressor is stopped, and report data from the analog-to-digital conversion module to the slave display panel, determine the on-off of each function module of the refrigerator based on the display panel, and reduce the power consumption of the refrigerator during operation. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a flowchart of the refrigerator operation control method in one embodiment;

[0036] Figure 2 It is a structural block diagram of the refrigerator electric control panel in the related art;

[0037] Figure 3 It is a schematic diagram of the temperature sensor temperature detection circuit in the related art;

[0038] Figure 4 It is a schematic diagram of the switch signal detection circuit in the related art;

[0039] Figure 5 It is a structural block diagram of the refrigerator electric control panel in one embodiment;

[0040] Figure 6 It is a circuit schematic diagram of the ADC chip collecting sensor temperature in one embodiment;

[0041] Figure 7 It is a circuit schematic diagram of the ADC chip collecting switch signal in one embodiment;

[0042] Figure 8 It is a communication schematic diagram of the ADC chip, temperature and humidity sensor and display panel in one embodiment;

[0043] Figure 9 It is a schematic diagram of the SW2 to SW5 control circuit in one embodiment;

[0044] Figure 10 It is a comparison schematic diagram of the frequency conversion MCU circuit connection in one embodiment;

[0045] Figure 11 It is a schematic diagram of the flyback switching power supply circuit in the related art;

[0046] Figure 12A schematic diagram of a flyback switching power supply circuit in one embodiment;

[0047] Figure 13 A schematic diagram of a BUCK voltage reduction circuit in the related art;

[0048] Figure 14 A schematic diagram of a BUCK voltage reduction circuit in one embodiment;

[0049] Figure 15 A graph of application efficiency of a BUCK voltage reduction circuit in one embodiment;

[0050] Figure 16 A structural block diagram of a refrigerator in one embodiment and an internal structural diagram of a computer device;

[0051] Figure 17 An internal structural diagram of an LOD chip in the related art;

[0052] Figure 18 An internal structural diagram of a BUCK chip in one embodiment. DETAILED DESCRIPTION

[0053] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0054] In one embodiment, as shown in Figure 1 , a refrigerator operation control method is provided, and the present embodiment takes the method applied to a refrigerator or a terminal inside the refrigerator as an example for illustration. It should be understood that the method can also be applied to a server, and can also be applied to a system including a terminal and a server, and is realized through the interaction of the terminal and the server. The refrigerator includes a main control board, a display board and a function module, the main control board includes an analog-to-digital conversion module, and the main control board and the display board are used to control the operation of the corresponding function module.

[0055] The function module is used to realize various functions of the refrigerator, including but not limited to a refrigerator fan and a driving circuit thereof, an air door and a driving circuit thereof, an LED illuminating lamp and a driving circuit thereof, an opening door signal detection circuit, a temperature sensor and a driving circuit thereof, a buzzer driving circuit, etc.

[0056] The main control board is used to control the operation of most function modules. For example, the refrigerator fan, damper, LED lighting in the refrigerator compartment, and other loads and circuits that have a strong association with the operation of the refrigerator are controlled by the main control board. The display board is a control board that has a continuous operation requirement after the refrigerator is powered on. Among them, the display board is used to control the operation of a small part of the function modules, for example, when the refrigerator has a buzzer, external LED light device, etc. This part of the load and circuit that does not have a strong association with the operation of the refrigerator is controlled by the display board.

[0057] Optionally, the display board is used to show the user the running state of the refrigerator, or it can also respond to the user's input instructions to realize the display of refrigerator information. Since the display board has a continuous operation requirement regardless of whether the refrigerator has a refrigeration requirement, setting the display board as a display board can reduce the power consumption required when connecting or disconnecting the function modules and the corresponding power supply according to the operation requirement.

[0058] In this embodiment, the method comprises the following steps:

[0059] Step S102, based on the analog-digital conversion module, the running parameters of the refrigerator are obtained, and the running parameters are transmitted to the display board.

[0060] Among them, the running parameters of the refrigerator include but are not limited to the temperature parameters of the refrigerator temperature sensor, the refrigerator door opening signal, the refrigerator door closing signal, the temperature and humidity sensor acquisition parameters, and other parameters associated with the running state of the refrigerator. Optionally, the load or circuit used to collect the running parameters is connected to the input end of the analog-digital conversion module, and the analog-digital conversion module converts the analog signal collected by the load or circuit into a digital signal and transmits the digital signal to the display board.

[0061] Step S104, based on the running parameters, the display board determines the operation requirement of each function module, and according to the operation requirement, the connection between the function module and the corresponding power supply is turned on or disconnected.

[0062] Among them, the display board can determine the current operation requirement and operation state of the refrigerator based on the running parameters. For example, the display board can determine the function modules associated with the refrigeration of the refrigerator based on the signal collected by the temperature sensor in the case where the current refrigerator does not have a refrigeration requirement, and by disconnecting the connection between these function modules and the corresponding power supply, the power consumption of the refrigerator during operation after power-on can be reduced.

[0063] In the refrigerator operation control method, the operation parameter is obtained by the analog-to-digital conversion module in the main control board, the main control board can not collect signals in real time, so that the part of the main control board except the analog-to-digital conversion module does not need to operate when the refrigerator is on standby. The display panel receives the signals collected from the analog-to-digital conversion module to disconnect the power supply of the functional module that does not have operation demand, reduces the power consumption consumed by each functional module in the standby process, and achieves the effect of reducing the power consumption of the refrigerator.

[0064] In one embodiment, the operation parameter of the refrigerator includes the temperature of the refrigerator compartment, the refrigerator includes a first power supply and a second power supply, the voltage of the first power supply is lower than the voltage of the second power supply, the display panel determines the operation demand of each functional module based on the operation parameter, and turns on or off the connection between the functional module and the corresponding power supply according to the operation demand, including: determining the first functional module running based on the first power supply according to the temperature of the refrigerator compartment in the case that the refrigerator does not have refrigeration demand; and disconnecting the connection between the first functional module and the first power supply.

[0065] In one embodiment, the operation parameter of the refrigerator includes the temperature of the refrigerator compartment, the refrigerator includes a first power supply and a second power supply, the voltage of the first power supply is lower than the voltage of the second power supply, the display panel determines the operation demand of each functional module based on the operation parameter, and turns on or off the connection between the functional module and the corresponding power supply according to the operation demand, including: determining the first functional module running based on the first power supply according to the temperature of the refrigerator compartment in the case that the refrigerator does not have refrigeration demand; and disconnecting the connection between the first functional module and the first power supply.

[0066] The power supply voltages connected by different loads and circuits inside the refrigerator are different. The first power supply is usually used to drive low-power functional modules, such as microcontrollers in the main control board, etc. The second power supply is usually used to drive higher-power devices or functional modules that require more current, such as fans, motors, dampers, etc.

[0067] Optionally, the connection between the first functional module and the first power supply can be disconnected by a switch module. Each switch module is connected with the corresponding functional module and power supply. The display panel obtains the corresponding switch module according to the first functional module, and inputs a signal to the switch module. The switch module changes the circuit on-off state between the first functional module and the first power supply in response to the input signal.

[0068] In this embodiment, by disconnecting the connection between the first functional module running based on the first power supply and the first power supply in the case that the refrigerator does not have refrigeration demand, the microcontroller such as the main control MCU does not have operation demand, the power consumption of the refrigerator can be reduced.

[0069] In one embodiment, the running parameter comprises a refrigerator door opening signal, the refrigerator comprises a first power supply and a second power supply, the voltage of the first power supply is lower than the voltage of the second power supply, the running requirement of each function module is determined based on the running parameter by the display panel, and the connection between the function module and the corresponding power supply is turned on or turned off according to the running requirement, which comprises: when the refrigerator does not have a refrigeration requirement, it is judged whether the display panel receives the refrigerator door opening signal; when it is judged that the display panel does not receive the refrigerator door opening signal, it is determined that the first function module in the refrigerator which runs based on the first power supply, and the second function module in the main control panel and the display panel which run based on the second power supply; and the connection between the first function module and the first power supply is turned off, and the connection between the second function module and the second power supply is turned off.

[0070] Wherein, when the refrigerator does not have a refrigeration request, and the display panel does not receive the refrigerator door opening signal, the refrigerator is in standby state, except for the processor and the analog-to-digital conversion module in the display panel which execute the refrigerator running method, the microprocessor and the circuit of the load in the refrigerator which run based on the first power supply, and the circuit part in the main control panel and the display panel of the refrigerator which run based on the second power supply, such as fans, motors, dampers, etc., do not have running requirements. In this embodiment, by turning off the connection between the first function module and the first power supply, and turning off the connection between the second function module and the second power supply, the effect of greatly reducing power consumption can be achieved.

[0071] Optionally, the display panel can judge whether the refrigerator has a refrigeration requirement based on the temperature of the refrigerator compartment input by the analog-to-digital conversion module.

[0072] Optionally, after judging whether the display panel receives the refrigerator door opening signal, when it is judged that the display panel receives the refrigerator door opening signal, the connection between the first function module and the first power supply is turned on, and the connection between the second function module and the first power supply is turned on.

[0073] This setting is because after the display panel receives the refrigerator door opening signal, the temperature inside the refrigerator compartment changes, and correspondingly, the refrigerator has a refrigeration requirement. At the same time, the refrigerator load such as LED also needs to start running. In this embodiment, after it is judged that the display panel receives the refrigerator door opening signal, the connection between the first function module and the first power supply is turned on, and the connection between the second function module and the first power supply is turned on, so that the refrigerator can be restored to the refrigeration running state from the standby state in time.

[0074] Further, in one embodiment, the main control panel further comprises a variable frequency drive module for changing the speed of the compressor of the refrigerator, and after it is judged that the display panel does not receive the refrigerator door opening signal, the display panel can further: turn off the connection between the variable frequency drive module and the corresponding power supply.

[0075] When the refrigerator is a variable frequency refrigerator, a variable frequency driving module exists. However, after it is determined that the display panel does not receive the refrigerator door opening signal, it is determined that the current refrigerator is on standby and the chamber temperature does not change, and there is no demand for variable frequency operation. Therefore, in the embodiment, by disconnecting the connection between the variable frequency driving module and the corresponding power supply, the power consumption caused by the long-time standby of the variable frequency driving module is avoided.

[0076] Further, in one embodiment, the operating parameters further include an input signal of the refrigerator display panel, after it is determined that the display panel does not receive the refrigerator door opening signal, the display panel can further determine whether the input signal is received; when the display panel does not receive the input signal, the steps of determining the first function module in the refrigerator based on the first power supply and the second function module in the main control panel and the display panel based on the second power supply are executed.

[0077] When the refrigerator has a display panel, the user can input user instructions based on the display panel to change or obtain the operating state of the refrigerator. The user can input the input signal of the display panel through voice input, touch input, button input, etc.

[0078] To avoid that the user input instruction cannot be executed, it is determined whether the display panel receives the input signal, and when it is determined that the refrigerator is not opened, there is no change in the chamber temperature, the user does not input instructions based on the display panel of the refrigerator, and there is no request for refrigeration in the chamber of the refrigerator, it is determined that there is no function module with operating demand, which improves the stability of the refrigerator operation.

[0079] Optionally, in the case where the display panel receives the input signal of the display screen, the function modules in the display panel other than the MCU of the display panel and based on the first power supply voltage can be turned on, so that the display panel can normally operate in response to the input signal.

[0080] In one embodiment, the refrigerator further comprises a step-down module, when the display panel inputs a first level signal to the step-down module, the output voltage of the step-down module is the voltage of the first power supply; when the display panel inputs a second level signal to the step-down module, the output voltage of the step-down module is the voltage of the second power supply, the display panel determines the operating demand of each function module based on the operating parameters, and turns on or disconnects the connection between the function module and the corresponding power supply according to the operating demand, including: when the display panel determines that the second function module based on the second power supply does not have operating demand based on the operating parameters, inputting the first level signal to the step-down module; when the display panel determines that the first function module based on the first power supply does not have operating demand based on the operating parameters, inputting the second level signal to the step-down module.

[0081] The first level signal and the second level signal are different in level, and the level can be set according to application requirements. Optionally, the buck module selects a BUCK bucking circuit, receives different level signals, changes the connection state of the internal circuit, and realizes the change of the output voltage. Compared with the method of reducing the power consumption through the LDO (low dropout linear voltage regulator) bucking in the prior art.

[0082] Optionally, the output voltages of the buck module are connected to the function modules based on the first power supply and the second power supply in the main control board and the display board, so that the operation of the chip circuits on the two control boards is realized through one buck module.

[0083] Further, in the case that the refrigerator has a refrigeration demand, the second function module based on the second power supply has an operation demand, at this time, the second level signal is input to the buck module.

[0084] In the embodiment, by changing the level signal input to the buck module, the effect of flexibly adjusting the working state of the buck module can be achieved.

[0085] In one embodiment, considering that the refrigerator is a special product among household appliances, the main control board needs to detect the temperature of the temperature sensor and whether the refrigerator door is opened when the refrigerator compressor is stopped, and when the above input signals reach the set threshold, the corresponding load is controlled to act, and when a sensor failure occurs, the corresponding fault program is entered to work. These features are different from other products such as washing machines and air conditioners. These products do not need to detect input signals such as temperature sensors, temperature and humidity sensors, and door switches when they are on standby, and provide a refrigerator electric control board.

[0086] Figure 2 is a structural diagram of a refrigerator electric control board in the related art, as Figure 2 shown, the refrigerator electric control board includes a main control board and a display board, wherein the main control board selects a main variable integrated board, including a main control MCU and corresponding peripheral circuits, and a variable frequency MCU and corresponding peripheral circuits, and the main control MCU and the variable frequency MCU are connected. The display board includes a display board MCU, that is, an integrated touch function MCU in Figure 2 . The main control board and the display board continuously consume electric energy with the chips and circuits associated with the main control board and the display board when the refrigerator is powered on or in standby state.

[0087] The main control MCU is connected to the temperature sensor voltage divider circuit, the door opening signal detection circuit, and the temperature and humidity sensor. In addition, the main control MCU is also connected to circuits with a +12V power supply, such as the fan drive circuit, the door drive circuit, the LED lighting drive circuit, other +12V load drive circuits, and AC load drive circuits, as well as circuits with a +5V power supply, such as other 5V signal circuits and serial communication circuits. The main control MCU is connected to the integrated touch function MCU via a serial communication circuit. The integrated touch function MCU is connected to the buzzer drive circuit, the LED / LCD drive circuit, and the touch buttons on the display board. The refrigerator control board converts the external AC power into +12V power for the main control MCU through an EMC circuit, a filter and rectification circuit, and a flyback switching power supply circuit. Then, the +12V power is converted to +5V power for the main control MCU through an LDO circuit. Two BUCK circuits provide +12V and +15V power to the inverter circuit; and the +12V power is converted back to +5V power for the integrated touch function MCU through an LDO circuit.

[0088] based on Figure 2 In order to respond to the cooling needs of the refrigerator compartments or other working logic, the main control MCU of the electronic control board needs to be continuously powered on and obtain input signals from the aforementioned connected circuits of the refrigerator. This includes: the main control MCU continuously monitoring the temperature of the refrigerator compartment temperature sensor to control the compressor's cooling function. Figure 3 This is a schematic diagram of a temperature sensor detection circuit in related technologies. LCSenser, BWSenser, LDSenser, HSSenser, and HJSensor correspond to the refrigerator compartment sensor, variable temperature sensor, freezer compartment sensor, defrost sensor, and ambient temperature sensor, respectively. Figure 3 The circuit shown connects to the main control MCU interface on the left and to port group CN2 on the right, which serves as the output interface for each sensor. The main control MCU connects via... Figure 3 The circuit shown acquires temperature data from sensors in the refrigerator compartment, variable temperature compartment, freezer compartment, defrost compartment, and ambient temperature. Besides the internal ADC section consuming power for temperature acquisition, all other components of the main control MCU are also powered on and consume power. The main control MCU also acquires input signals for: real-time detection of the refrigerator door's open status. For example, if a user opens the refrigerator door, the main control board needs to activate the refrigerator compartment's LED lights; for frost-free refrigerators, it needs to detect the frequency of door openings to adjust the defrost interval in the freezer compartment, among other logic. Figure 4is a schematic diagram of a switch signal detection circuit in the related art, wherein the left LCSWITCH and LDSWITCH are two interfaces of the door switch detection circuit, LCSWITCH corresponds to the switch signal of the refrigerator door, and LDSWITCH corresponds to the switch signal of the freezer door, and the right connection port group CN5 is connected with the chip interface of the main control MCU. Figure 4 The main control MCU collects high and low levels to detect whether the switch is in the on or off state.

[0089] During the period when the refrigerator chamber has no refrigeration demand, the chip of the load driving circuit is always powered on and in a standby state to consume power. For example, the refrigeration door control driving chip of the refrigerator is always powered on and in a standby state when the refrigeration chamber has no refrigeration request. Among them, due to the characteristics of the semiconductor in the part of the load driving circuit, there is still a small leakage current in the off state, such as the triode and MOS tube in the lighting driving circuit and the fan driving circuit. At the same time, for the variable frequency refrigerator, when the refrigerator chamber has no refrigeration request, the variable frequency part circuit on the main control board is in a working state, which also increases the power consumption of the refrigerator.

[0090] Based on the above problems, the display panel of the refrigerator is taken as the master in this embodiment, that is, the display panel in the above embodiment, and the main variable integrated board of the refrigerator is taken as the slave, that is, the main control board in the above embodiment. Among them, the display panel includes a display panel MCU and related circuits; the main variable integrated board includes a main control MCU and related circuits, a variable frequency MCU and related circuits. Figure 5 is a structural block diagram of the refrigerator electric control board in this embodiment. Unlike Figure 2 , the temperature sensor voltage division circuit and the door opening signal detection circuit in Figure 5 are obtained through the ADC sampling chip and transmitted to the display panel MCU, and the data measured by the temperature and humidity sensor is directly transmitted to the display panel MCU through communication. The refrigerator electric control board is also provided with SW1 to SW6 control circuits, SW1 is connected with the variable frequency MCU and the bus voltage sampling circuit, and SW2 to SW6 control circuits are connected with the display panel MCU. Among them, one end of the SW6 control circuit is connected with the display panel MCU, and the other end of the SW6 control circuit is connected with the feedback circuit in the main variable integrated board. In addition, Figure 5 , after the main variable of the refrigerator electric control board is replaced and connected to the external power supply, the external power supply is converted into +12V power supply in the main control MCU through the EMC circuit, the filter rectifier circuit and the flyback switching power supply circuit in turn, and the flyback switching power supply circuit, the feedback circuit and the SW6 control circuit are connected to the display panel MCU; the flyback switching power supply circuit is also connected with the BUCK circuit, and 5V voltage is output to the display panel through the BUCK circuit. Based on Figure 5The refrigerator electric control board shown can power off the circuit and chip that do not need to work through the display board MCU when the refrigerator has no refrigeration request or has a refrigeration request, thereby reducing standby power consumption and operation power consumption, and improving the energy efficiency grade of the refrigerator. Figure 5 In the embodiment, +12V is the second power supply voltage in the above embodiment, and +5V is the first power supply voltage in the above embodiment. It can be understood that the power supply voltage settings can be different based on different models of refrigerators, which are not limited herein. The "main board" described in the embodiment is a "main and transformer integrated board".

[0091] Based on Figure 5 The refrigerator control scheme of the refrigerator electric control board shown is as follows:

[0092] The ADC chip and the related control circuit, i.e., the analog-digital acquisition module, are added to the refrigerator main board, so that the main control MCU no longer actively acquires the temperature of the refrigerator temperature sensor, the open and close door signal of the refrigerator door, and the temperature and humidity values of the temperature and humidity sensor, but the temperature sensor reports the temperature to the display board MCU through the communication port of the ADC chip. Figure 6 is a circuit schematic diagram of an ADC chip acquiring sensor temperature in the embodiment, as shown in Figure 6 As shown, the interfaces 10 to 13 in the ADC chip U1 are connected with a plurality of temperature sensors (LCSenser, BWSenser, HSSenser, LDSenser) respectively, to realize acquisition of a plurality of sensor data. The interfaces 4 to 5 in the ADC chip are connected with two interfaces (LCSWITCH, LDSWITCH) of the door switch detection circuit respectively. It can be understood that in the case that the refrigerator only includes a refrigeration chamber or only includes a freezer chamber, only one corresponding open and close door signal interface can be provided, and in the case that the refrigerator further includes other compartments, other compartment corresponding open and close door signal interfaces can be further added and connected in communication with the ADC chip. The door switch acquisition circuit is built by the ADC chip and the corresponding AD acquisition circuit, and the door switch state is reported to the display board MCU through the communication port of the ADC chip. It can be understood that different ADC chips can be selected according to application requirements. Figure 6 As shown in Figure 7 is a circuit schematic diagram of the ADC chip acquiring the switch signal in the embodiment, as shown in Figure 7 As shown, the ADC chip and the two interfaces LCSWITCH and LDSWITCH of the door switch detection circuit are connected in series in the circuit through the connection port group CN6. Figure 7In the circuit shown, resistors R33, R34 and capacitors C23, C24 constitute RC filtering; the values of resistors R35, R36 and R37 are used to distinguish the size of the AD value collected by the ADC chip, which can be set and selected according to requirements. When the two refrigerator doors are closed, the two door switch circuits are turned off, and the AD value collected by the ADC chip is 0, so as to determine the opening and closing state of the two refrigerator doors. When any one or more refrigerator doors are opened, one or more corresponding door switch circuits are turned on, so that different resistors are connected in the circuit, and thus different voltage drops are caused by different resistances, so that the ADC chip determines the on-off switch according to the collected AD value, and further determines the opening and closing state of the refrigerator door.

[0093] If the refrigerator refrigeration beam contains an anti-condensation heater, the control circuit of the anti-condensation heater can also be controlled by the display panel MCU instead of the main control MCU. At the same time, the refrigerator temperature and humidity sensor no longer reports the temperature and humidity value to the main control MCU, but to the display panel MCU. Figure 8 is a communication circuit schematic diagram of the ADC chip, the temperature and humidity sensor and the display panel in the embodiment, as Figure 8 shown, the temperature and humidity signal generated by the temperature and humidity sensor is collected by the display panel. Specifically, the temperature and humidity sensor transmits the temperature and humidity signal to the display panel through the interfaces 4 to 7 in the connection port group CN10. The ADC chip communication interface on the main control panel is connected to the interfaces 1 to 3 in the connection port group CN10 through the interfaces 1 to 3 in the connection port group CN9, realizing the communication connection between the signal collected by the ADC chip of the main control panel in the refrigerator and the display panel, wherein the communication signal includes but is not limited to the temperature signal of the temperature sensor and the opening and closing signal of the refrigerator door. Among them, SDO is a data output pin; SDI is a data input pin; SCLK is a serial clock signal; SDA is a serial data line; SCL is a serial clock line. Among them, resistors R99, R100, R101, R102, R104, R103 and capacitors C54, C55, C56, C100, C101 constitute RC filtering. It can be understood that in the case of selecting other models of display panel MCU, the circuit structure of the signal transmitted to the display panel can be different. In addition to transmitting signals based on the SPI protocol to realize communication, the ADC chip, the temperature and humidity sensor and the display panel can also realize communication based on other protocols such as I2C protocol.

[0094] Further, the refrigerator electric control panel in the embodiment further includes control circuits SW1 to SW6. SW1 is controlled by the frequency conversion MCU of the main panel, and SW2-SW6 are controlled by the display panel. Figure 9is a schematic diagram of the SW2 to SW5 control circuit in this embodiment. Among them, the lower path in the display panel is connected through CN8 in the connection port group and CN7 in the connection port group in the mainboard. Among them, the SW2 control circuit includes a triode Q18 and a resistor R71. Among them, the e pole of the triode Q18 is connected to the +5V voltage, the b pole is connected to the +18V voltage, and the c pole is connected to the interface 7 in the connection port group CN8 through the R71 in series, thereby being connected with the triode Q11, the chip U6, the transistor Q5 and the triode Q10 through the interface 7 in the connection port group CN7. The connection structure of the SW3 control circuit and the SW4 control circuit on the side of the display panel is the same as that of the SW2 control circuit on the side of the display panel, and the b poles of the triodes Q19 and Q20 in the SW3 control circuit and the SW4 control circuit are connected to the +5V voltage and the +12V voltage respectively. The connection objects of the SW3 control circuit and the SW4 control circuit on the side of the mainboard are different from those of the SW2 control circuit on the side of the mainboard, among them, the c pole of the triode Q19 in the SW4 control circuit is connected to the port 5 in CN8, and is connected with the transistor Q12 and the triode Q13 through the port 6 in CN7; the c pole of the triode Q209 in the SW3 control circuit is connected to the port 5 in CN7, and is connected with the transistor Q16 and the triode Q17 through the port 5 in CN7. The SW5 control circuit includes a transistor Q14, resistors R87, R88, a triode Q15, resistors R89, R90. Among them, one end of R89 is connected with 5VCDCTR, the other end of R89 is connected with the b pole of triode Q15 and one end of R90 respectively, the e pole of triode Q15 and the other end of R90 are grounded, and the c pole of triode Q15 is connected to one end of R87. The other end of R87 is connected with the first end of Q14 and one end of R88 respectively. The second end of R88 is connected to the second end of transistor Q14, and the second end and the third end of transistor Q14 are connected with +5V and +5VCD respectively.

[0095] The circuit structure on the right side of the main board is used to output high level signal or low level signal to SW2-SW5 of the display board according to the working state of the refrigerator, change the on-off state of the triode in SW2-SW5 of the display board, and change the b pole output voltage of the triode in SW2-SW5. For example, in the case that there is no refrigeration request in the refrigerator compartment, the circuit structure in the frame on the right side of the main board outputs high level to the GPIO port "18VCCTR" of the display board MCU, Q18 is turned off, so that Q11, U6, Q10 and Q5 are turned off in turn, so that the voltage +18V for supplying power to the frequency conversion part is powered off; in the case that there is a refrigeration request in the refrigerator compartment, the circuit structure in the frame on the right side of the main board outputs low level to the GPIO port "18VCCTR" of the display board MCU, so that Q11, U6, Q10 and Q5 are turned on in turn, so that the voltage +18V for supplying power to the frequency conversion part is powered on. Based on the same principle, the "5VCCTR", "12VCCTR" and "5VCDTR" port output levels can correspond to control the on-off of the triodes on the display board side of SW4, SW3 and SW5, so as to change the on-off of the corresponding triodes and transistors on the main board side.

[0096] Figure 9 The display board side further comprises a triode Q22 and a resistor R98. The connection structure of the triode Q22 and the resistor R98 on the display board side is the same as that of the SW2 control circuit on the display board side, and constitutes a switching circuit. The b pole of the triode Q22 is connected to FNLHeater (a refrigerator with anti-condensation heater), the e pole of the triode Q22 is connected to +5V voltage, and the c pole of the triode Q22 is connected to port 3 in CN8 and connected to chip U11 through port 3 in CN7 on the main board side. The chip U11 is used to realize the control of the anti-condensation heater of the refrigerator. Such connection makes the +5V voltage of the display board connected to the +5V voltage of the main control board, and the working of the display board is controlled by the display board. Compared with the method of directly controlling the operation of the chip U11 by the main control board in the traditional scheme, the loss is reduced, thereby reducing the standby power consumption.

[0097] Figure 10 A contrast schematic diagram of the frequency conversion MCU circuit connection is provided. Wherein, Figure 10(a) is a schematic diagram of the connection between the inverter MCU and the bus voltage sampling circuit in the relevant technology. PGND is the power ground, PGNDA is the analog power ground, H5VA is the 5V voltage output port after RC filtering, and the DCBUS pin is connected to one end of resistor R13, capacitor C4, and resistor R12 through resistors R7 and R11, respectively. The other end of resistor R13 is connected to PGND, the other end of capacitor C4 is connected to PGNDA, the other end of resistor R12 is connected to one end of diode D10 and the DCBUSAD pin, and the other end of diode D10 is connected to H5VA. Since the inverter algorithm of the inverter refrigerator needs to collect the rectified and filtered bus voltage to control the inverter compressor, the relevant technology uses... Figure 10 The circuit shown in (a) samples and rectifies the bus voltage at the DCBUS pin and then transmits it to the IO port of the inverter MCU where the DCBUSAD pin is located.

[0098] Figure 10 (b) is a schematic diagram of the connection between the frequency conversion MCU and the bus voltage sampling circuit in this embodiment. Figure 10 (b) in Figure 10 Based on (a), a control circuit SW1 is added. The control circuit SW1 includes a transistor Q23 and resistors R105 and R106. One end of R105 is connected to DCBUSCTR, and the other end of R105 is connected to the base (b) of transistor Q23 and one end of R106. The emitter (e) of transistor Q23 and the other end of R106 are grounded. The collector (c) of transistor Q23 is connected to resistor R5 in the circuit between DCBUS and DCBUSAD. DCBUSCTR is the pin name of the I / O port of the frequency converter MCU controlling the SW1 control circuit; DCBUS is the rectified and filtered bus voltage; and DCBUSAD is the pin name of the frequency converter MCU's I / O port. Figure 10 In the related technology shown in (a), the bus sampling circuit continuously samples, while Figure 10 The circuit connection shown in (b) uses a frequency converter MCU to control transistor Q23. When the refrigerator is running, it detects the bus voltage. When the refrigerator is not working, the frequency converter MCU controls transistor Q23 to disconnect, thereby cutting off the power to the bus voltage detection circuit and reducing power consumption.

[0099] The specific functions of control circuits SW1 to SW6 are as follows:

[0100] The SW1 control circuit is used to control the power supply between the frequency converter MCU and the bus voltage sampling circuit in the main transformer integrated board of the frequency converter refrigerator.

[0101] The SW2 control circuit is used to control the power supply to and from the inverter section of the main inverter integrated board of the inverter refrigerator.

[0102] The SW3 control circuit is used to control the power supply to the +12V-based circuit sections in the refrigerator's main board and display board.

[0103] The SW4 control circuit is used to control the power supply to the +5V-based circuitry of the refrigerator.

[0104] The SW5 control circuit is used to control the power supply to the other circuits on the display board that operate on +5V voltage, except for the display MCU.

[0105] The SW6 control circuit is used to control the conduction state of the step-down module.

[0106] Optionally, reducing the refrigerator's standby power consumption includes: when the refrigerator is in standby mode, if it is detected that the refrigerator door is not open, the touch buttons on the display panel do not detect touch signals, and the refrigerator compartment has no cooling request, the display panel MCU controls the SW2-SW5 control circuit to disconnect, and power off all parts except the display panel MCU, the ADC chip in the motherboard and related circuits, thereby reducing standby power consumption.

[0107] Reducing refrigerator operating power consumption includes: when a door opening signal is detected and there is no cooling request from the refrigerator compartment, the display board MCU controls the SW3-SW5 control circuits to conduct, regardless of whether a touch signal is detected. When a touch signal is detected alone, the display board MCU controls the SW5 control circuit to conduct. When a cooling request from the refrigerator compartment is detected, the display board MCU controls the SW2-SW6 control circuits to conduct, while the main board's inverter MCU controls the SW1 control circuit to conduct. Since disconnecting the SW2 control circuit would disconnect the SW1 control circuit, the display board MCU first controls the SW2 control circuit to conduct, and then the main board's inverter MCU controls the SW1 control circuit to conduct.

[0108] For example, after the ADC chip acquires the temperature from the compartment temperature sensor, the display board MCU determines that there is no cooling demand in the compartment based on the temperature, thus switching the SW4 control circuit to the off state. Generally, the operating current of ADC chips is below 5mA, and some ADC chips are below 1mA. The operating current of the main control MCU on the motherboard is generally around 50mA. Taking a 5V supply voltage for both the ADC chip and the main control MCU as an example, when the refrigerator is in standby mode, the main control MCU does not work, only the ADC chip on the motherboard works. The power consumption of the ADC chip when working is 0.025W, and the power consumption of the main control MCU is 0.25W. Therefore, choosing a conventional ADC chip can achieve a considerable reduction in power consumption.

[0109] And, the embodiment considers that the display panel MCU has the demand of obtaining the user touch signal when the refrigerator is on standby, and the display panel MCU controls the receiving of the refrigerator operation parameters; at the same time, the display panel MCU changes the conduction state of the SW2-SW6 control circuit, so that the circuit and the chip without operation demand are powered off, and the effect of effectively reducing the operation power consumption is achieved.

[0110] Further, considering that the refrigerator has loads running based on +12V voltage and loads running based on +5V voltage, and the step-down module of +12V to 5V has high power loss. Figure 11 The circuit schematic diagram of the flyback switching power supply circuit in the related art is shown in FIG. 1. Figure 11 The circuit shown in FIG. 1 is a flyback switching power supply circuit for providing +5V or +12V voltage for the +5V or +12V load such as LED lamp in the refrigerator. The dashed box is the feedback loop of the flyback switching power supply, which is used to change the operation state of the circuit outside the dashed box when the +12V power supply fluctuates, so that the voltage at the R pin of U5 does not meet the specified 2.5V voltage requirement, and then the U2 chip adjusts the voltage according to the feedback result of the feedback loop until the voltage meets the +12V requirement.

[0111] Figure 12 A circuit schematic diagram of a flyback switching power supply circuit of the embodiment is provided, as shown in FIG. 2. Figure 12 Compared with Figure 11 , Figure 12 The display panel MCU control circuit SW6 is added on the basis of the feedback loop of the switching power supply, wherein the SW6 includes R36, R31 and triode Q4. The b pole of the triode Q14 is connected to the IO port STDBY of the MCU, the e pole is connected to one end of the R36 and the GND (ground), the c pole of the triode Q14 is connected to the other end of the R36 and the R31. Among them, Figure 12 The R31 in Figure 11 is equivalent to the R28 in . When the refrigerator compressor is stopped or the refrigerator door is not opened, the display panel controls the triode Q4 to be turned off through the IO port (STDBY) of the MCU, so as to reduce the output voltage of the switching power supply, so that the input voltage of the BUCK step-down chip is stepped down, thereby reducing the standby power consumption of the refrigerator when it is stopped.

[0112] Figure 12In the embodiment, by connecting the resistance voltage dividing circuit composed of R20, R31 and R36, the loss of the voltage reduction circuit for reducing +12V to 5V is reduced, thereby reducing the standby power consumption of the main board and the display board. Exemplarily, U6 is TL431, and the characteristic of the device is that the voltage at the R pin is always 2.5V. The circuit selects the resistance values of R20, R31 and R36 and cooperates with the triode Q4 to make the power supply output two different voltages by switching the triode Q4. Taking R20=22K, R31=5.6K and R36=6.8K as examples, when the Q4 switching state is on, R36 is short-circuited. U6 is TL431, and the voltage at the R pin is 2.5V based on the working characteristic of U6. According to the principle that the currents in the series circuits are equal, the output voltage is calculated to be 12.3V. When the Q4 switching state is off, R36 is connected to the circuit. According to the principle that the currents in the series circuits are equal, the output voltage is calculated to be 6.9V. In addition, Q4 can also be other electronic components with switching function such as comparators and flip-flops.

[0113] Figure 13 A structural diagram of an LDO voltage reduction chip in the related art is provided, wherein U9 is the LDO voltage reduction chip. The input (VIN) port 3 of U9 is connected with +12V voltage, the output (Vout) port 1 is connected with +5V voltage, and the port 2 is grounded (GND). The BUCK voltage reduction circuit further includes capacitors C34 and C35. C34 and C35 are connected in parallel, the positive plate of C34 is connected with the output (Vout) port, and the other end of C34 is grounded. Based on the BUCK voltage reduction chip in Figure 14 , the main control board and the display board need to use two LDOs (low dropout linear voltage stabilizers) to reduce +12V to +5V respectively, thereby providing +5V power supply for respective chips and circuits.

[0114] Figure 14 A structural diagram of the BUCK voltage reduction circuit in the embodiment is provided, wherein U8 is the BUCK voltage reduction chip. Figure 13 is an LDO voltage reduction chip, and Figure 14 is different from the BUCK voltage reduction chip in Figure 17 A structural diagram of an LDO voltage reduction chip in the related art is provided. As shown in Figure 17 , the triodes Q14, Q15 and Q18 in the LDO voltage reduction chip U9 all work in an amplification state, so that the VCE (voltage between the emitter and the collector) voltage drop of the triodes in the LDO is large, thereby causing the triode power consumption Ptriode=VCE amplification*I in the LDO to be large, wherein VCE amplification is the voltage between the emitter and the collector of the MOS in the amplification state, and I is the current value flowing through the triode. Figure 18 A structural diagram of the BUCK chip in the embodiment is provided. See Figure 18, the MOS transistor (MOS) in the BUCK chip (as shown in the red box) Figure 18 works in a saturated conduction state. Since the MOS in the saturated conduction state has a small conduction voltage drop when turned on, the VCE saturation of the MOS is less than the VCE amplification of the MOS in the saturated conduction state. The VCE amplification is the voltage between the emitter and the collector of the MOS in the saturated conduction state. Therefore, the loss PMOS of the MOS is VCE saturation*I, which is less than the loss Ptriode of the triode, which is VCE amplification*I.

[0115] Based on the BUCK step-down circuit shown in Figure 14 , the power consumption of the step-down module in this embodiment is described. As an example, the +12V is stepped down to +5V by the BUCK step-down chip on the mainboard, and the +5V voltage is used to power the chips and related circuits of the mainboard and the display board. The following terms are defined: input voltage VIN, input current Iin, output voltage Vo, output current Iout, BUCK step-down circuit conversion efficiency η, input power Pin, output power Po, and BUCK circuit loss power Ploss. The following formula is obtained: VIN*Iin*η=Vo*Iout=Po

[0116] When the refrigerator is on standby, the output power Po of the BUCK step-down circuit is fixed, but the input voltage VIN decreases. Figure 15 is the application efficiency curve of the BUCK step-down circuit, as shown in Figure 15 , VIN is the input voltage of the BUCK step-down circuit. In the case of the same output power Po, VIN decreases, and η increases. Based on the above formula, Po is a fixed value, and η increases, so Po / η decreases, and therefore VIN*Iin decreases.

[0117] The power loss calculation method is as follows:

[0118] P 损 =VIN*Iin(1-η)=VIN*Iin-VIN*Iin*η=VIN*Iin-Po

[0119] According to the power loss calculation formula 3, VIN*Iin decreases, and the power loss Ploss decreases.

[0120] For the same refrigerator, taking the +5V load current of 50mA of the mainboard and the display board on standby as an example, the step-down module based on the circuit shown in Figure 14 can reduce the power consumption of the step-down module from 1.2W to 0.3W compared with the step-down module based on the circuit shown in Figure 13 . The running power consumption calculation method is the same, and the effect of a large decrease can be achieved.

[0121] Based on the same inventive concept, the embodiments of the present application also provide a refrigerator for implementing the refrigerator operation control method described above. The refrigerator device provides a solution to the implementation scheme as described in the above method, so the specific limitations in one or more refrigerator embodiments provided below can refer to the limitations of the refrigerator operation control method described above, and will not be repeated here.

[0122] In one embodiment, as shown in Figure 16 A refrigerator is provided, comprising a main control board, a display board and a function module, the main control board comprising an analog-digital conversion module; wherein the main control board is configured to control the operation of the function module connected thereto; the analog-digital conversion module is configured to obtain the operating parameters of the refrigerator and transmit the operating parameters to the display board; the display board is configured to control the operation of each function module connected thereto, and determine the operating requirements of the function module according to the operating parameters transmitted by the analog-digital conversion module, and turn on or turn off the connection between the function module and the corresponding power supply according to the operating requirements; the function module is configured to implement one or more functions required for the operation of the refrigerator when in operation.

[0123] In one embodiment, the refrigerator further comprises a switch module, the switch module being connected to the display board, the power supply of the refrigerator and the function module respectively; wherein the switch module turns on or turns off the connection between the main control board and the corresponding power supply in response to the signal input by the display board. Optionally, the refrigerator comprises a plurality of switch modules, and the plurality of switch modules are connected to the display board respectively. Wherein the voltage of the power supply corresponding to the connection of different switch modules can be the same or different. Wherein the switch module can be a switch that changes its on-off state in response to an electrical signal, for example, composed of a transistor and a resistor.

[0124] In one embodiment, the refrigerator further comprises a temperature and humidity module, the temperature and humidity module being connected to the display board; wherein the temperature and humidity module is configured to obtain the temperature value and humidity value in the refrigerator and transmit the temperature value and humidity value to the display board. Optionally, the temperature and humidity module is a temperature and humidity sensor, which can be set to the refrigeration chamber, the freezer, the air duct and the like.

[0125] In one embodiment, the operating parameters of the refrigerator include the temperature of the compartment of the refrigerator, the refrigerator comprises a first power supply and a second power supply, the voltage of the first power supply is lower than the voltage of the second power supply, the display board determines the operating requirements of each function module based on the operating parameters, and turns on or turns off the connection between the function module and the corresponding power supply according to the operating requirements, comprising: determining the first function module running based on the first power supply according to the temperature of the compartment of the refrigerator in the case that there is no refrigeration demand in the refrigerator; turning off the connection between the first function module and the first power supply.

[0126] In one embodiment, the operation parameter comprises a refrigerator door opening signal, the refrigerator comprises a first power supply and a second power supply, the voltage of the first power supply is lower than the voltage of the second power supply, the operation requirement of each functional module is determined by the display panel based on the operation parameter, and the connection between the functional module and the corresponding power supply is turned on or turned off according to the operation requirement, which comprises: when there is no refrigeration requirement in the refrigerator, it is judged whether the display panel receives the refrigerator door opening signal; when it is judged that the display panel does not receive the refrigerator door opening signal, a first functional module operating based on the first power supply in the refrigerator and a second functional module operating based on the second power supply in the main control panel and the display panel are determined; and the connection between the first functional module and the first power supply and the connection between the second functional module and the second power supply are turned off. When the display panel receives the refrigerator door opening signal, the connection between the first functional module and the first power supply and the connection between the second functional module and the first power supply are turned on. Further, the main control panel further comprises a variable frequency drive module for changing the speed of the compressor of the refrigerator. After it is judged that the display panel does not receive the refrigerator door opening signal, the method further comprises: turning off the connection between the variable frequency drive module and the corresponding power supply.

[0127] In one embodiment, the operation parameter further comprises an input signal of the display panel of the refrigerator. After it is judged that the display panel does not receive the refrigerator door opening signal, the display panel can further judge whether the input signal is received; when the display panel does not receive the input signal, the step of determining the first functional module operating based on the first power supply in the refrigerator and the second functional module operating based on the second power supply in the main control panel and the display panel is executed.

[0128] In one embodiment, the refrigerator further comprises a voltage reduction module. When the display panel inputs a first level signal to the voltage reduction module, the output voltage of the voltage reduction module is the voltage of the first power supply; when the display panel inputs a second level signal to the voltage reduction module, the output voltage of the voltage reduction module is the voltage of the second power supply. The operation requirement of each functional module is determined by the display panel based on the operation parameter, and the connection between the functional module and the corresponding power supply is turned on or turned off according to the operation requirement, which comprises: the first level signal is input to the voltage reduction module when it is determined by the display panel based on the operation parameter that the second functional module operating based on the second power supply has no operation requirement; the second level signal is input to the voltage reduction module when it is determined by the display panel based on the operation parameter that the first functional module operating based on the first power supply has no operation requirement.

[0129] Each module in the above-described refrigerator can be realized by software, hardware, and a combination thereof, in whole or in part. Each module described above can be embedded in or independent of the processor in the electric control panel of the refrigerator in hardware form, or can be stored in the memory in the electric control panel of the refrigerator in software form, so as to be called and executed by the processor to perform the corresponding operation of each module.

[0130] In one embodiment, a computer device is also provided, including a memory and a processor, the memory storing a computer program, and the processor implementing the steps in the above-mentioned method embodiments when executing the computer program. In one embodiment, a computer readable storage medium is provided, storing a computer program, and the computer program implementing the steps in the above-mentioned method embodiments when executed by a processor. In one embodiment, a computer program product is provided, including a computer program, and the computer program implementing the steps in the above-mentioned method embodiments when executed by a processor.

[0131] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiments can be completed by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer readable storage medium and can include the processes of the above-mentioned embodiments when executed. Any reference to a memory, database or other medium in the embodiments provided by the present application can include at least one of a non-volatile and volatile memory. The non-volatile memory can include a read-only memory (ROM), a magnetic tape, a floppy disk, a flash memory, an optical storage, a high-density embedded non-volatile memory, a resistive random access memory (ReRAM), a magnetoresistive random access memory (MRAM), a ferroelectric random access memory (FRAM), a phase change memory (PCM), a graphene memory, etc. The volatile memory can include a random access memory (RAM) or an external cache memory, etc. As an illustration but not limitation, the RAM can be in various forms, such as a static random access memory (SRAM) or a dynamic random access memory (DRAM), etc. The database involved in the embodiments provided by the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided by the present application can be a general processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., without being limited thereto.

[0132] Any technical features in the above embodiments can be combined, and for the sake of brevity, not all possible combinations are described, however, any combination of the technical features is considered to be within the scope of the present disclosure. The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for those skilled in the art, without departing from the concept of the present application, some modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A refrigerator operation control method, characterized by, The refrigerator includes a main control board, a display board, and functional modules. The main control board includes an analog-to-digital conversion module. The main control board and the display board are used to control the operation of the corresponding functional modules. The method includes: The operating parameters of the refrigerator are obtained based on the analog-to-digital conversion module, and the operating parameters are transmitted to the display panel; The display panel determines the operating requirements of each functional module based on the operating parameters, and connects or disconnects the functional module from the corresponding power supply according to the operating requirements.

2. The method according to claim 1, characterized in that, The refrigerator's operating parameters include the temperature of the refrigerator compartments. The refrigerator includes a first power supply and a second power supply, the voltage of the first power supply being lower than the voltage of the second power supply. The step of the display panel determining the operating requirements of each functional module based on the operating parameters, and connecting or disconnecting the functional module from the corresponding power supply according to the operating requirements, includes: If it is determined that the refrigerator does not require cooling based on the temperature of the refrigerator compartment, a first functional module that operates based on the first power supply is selected. Disconnect the first functional module from the first power supply.

3. The method according to claim 1, characterized in that, The operating parameters include a refrigerator door opening signal. The refrigerator includes a first power supply and a second power supply, wherein the voltage of the first power supply is lower than the voltage of the second power supply. The step of the display panel determining the operating requirements of each functional module based on the operating parameters and connecting or disconnecting the functional module from the corresponding power supply according to the operating requirements includes: When the refrigerator does not require cooling, determine whether the display panel receives a door opening signal from the refrigerator; When it is determined that the display panel has not received the refrigerator door opening signal, the system identifies the first functional module in the refrigerator that operates based on the first power supply, and the second functional modules in the main control board and the display panel that operate based on the second power supply; and disconnects the connection between the first functional module and the first power supply, and the connection between the second functional module and the second power supply.

4. The method according to claim 3, characterized in that, The main control board also includes a variable frequency drive module, which is used to change the speed of the refrigerator's compressor. After determining that the display board has not received a refrigerator door opening signal, the method further includes: Disconnect the frequency converter drive module from the corresponding power supply.

5. The method according to claim 3 or 4, characterized in that, The operating parameters also include the input signal of the refrigerator display panel. After determining that the display panel has not received the refrigerator door opening signal, the method further includes: Determine whether the display panel receives the input signal; When the display panel does not receive the input signal, the steps of determining the first functional module in the refrigerator that operates based on the first power supply, and the second functional module in the main control board and the display panel that operates based on the second power supply are executed.

6. The method according to claim 3, characterized in that, After determining whether the display panel has received the refrigerator door opening signal, the method further includes: When it is determined that the display panel receives the refrigerator door opening signal, the connection between the first functional module and the first power supply, and the connection between the second functional module and the first power supply are established.

7. The method according to claim 1, characterized in that, The refrigerator also includes a step-down module. When the display panel inputs a first-level signal to the step-down module, the output voltage of the step-down module is the voltage of the first power supply; when the display panel inputs a second-level signal to the step-down module, the output voltage of the step-down module is the voltage of the second power supply. The step of the display panel determining the operating requirements of each functional module based on the operating parameters, and connecting or disconnecting the functional module from the corresponding power supply according to the operating requirements, includes: If the display panel determines, based on the operating parameters, that the second functional module operating on the second power supply does not require operation, it inputs the first level signal to the buck module. If the display panel determines, based on the operating parameters, that the first functional module operating on the first power supply does not require operation, it inputs the second level signal to the step-down module.

8. A refrigerator, characterized in that the refrigerator... include: The system comprises a main control board, a display board, and functional modules, wherein the main control board includes an analog-to-digital conversion module; wherein, The main control board is used to control the operation of the functional modules connected to it; The analog-to-digital conversion module is used to acquire the operating parameters of the refrigerator and transmit the operating parameters to the display panel; The display panel is used to control the operation of the functional modules connected thereto, and to determine the operation requirements of the functional modules according to the operation parameters transmitted by the analog-to-digital conversion module, and to connect or disconnect the connection between the functional modules and the corresponding power supply according to the operation requirements. The functional module is used to perform one or more functions required for the refrigerator to operate during runtime.

9. The refrigerator according to claim 8, characterized in that, The refrigerator also includes a switch module, which is connected to the display panel, the refrigerator's power supply, and the functional module, respectively; wherein, The switch module responds to the signal input from the display panel by turning on or off the connection between the main control board and the corresponding power supply.

10. The refrigerator according to claim 9, characterized in that, The refrigerator also includes a temperature and humidity module, which is connected to the display panel; wherein... The temperature and humidity module is used to acquire the temperature and humidity values ​​inside the refrigerator and transmit the temperature and humidity values ​​to the display panel.

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