Refrigerator and control method thereof

Abstract

The application discloses a refrigerator and a control method thereof. The refrigerator comprises a power storage device for supplying power to the refrigerator, a charging device, and a controller. When it is detected that the power storage device has less than a preset maximum power and the mains power is in a power supply state, the controller acquires a current power consumption period of a region where the refrigerator is located. When it is detected that the current power consumption period is a power consumption valley period, the controller controls the charging device to charge the power storage device. When it is detected that the current power consumption period is a power consumption flat period, if it is detected that a next power consumption period is a power consumption peak period and the power is less than or equal to a preset median power, the controller controls the charging device to charge the power storage device. If it is detected that the next power consumption period is a power consumption valley period and the power is less than or equal to a preset minimum power, the controller controls the charging device to charge the power storage device until it is detected that the power reaches the preset median power. The application can reduce the power consumption proportion of the refrigerator in the power consumption peak period, save energy, and ensure the refrigeration effect of the refrigerator.

Description

Technical Field

[0001] This invention relates to the field of refrigerator technology, and more particularly to a refrigerator and its control method. Background Technology

[0002] Currently, refrigerators, as products that keep food or other items at a constant low temperature, are widely used in homes, businesses, and medical facilities. To maintain the preset low temperature, refrigerators require 24-hour power supply from the mains, resulting in significant power consumption during peak hours. Existing technology attempts to "smooth out" peak electricity consumption by adjusting the refrigerator's set temperature during off-peak hours. While this method can save energy to some extent, frequent temperature changes cause fluctuations in the refrigerator's compartment temperature, which is detrimental to the storage and freezing of food and other items. Summary of the Invention

[0003] This invention provides a refrigerator and its control method, which can reduce the refrigerator's electricity consumption during peak electricity usage periods to save energy while ensuring the refrigerator's cooling effect.

[0004] The refrigerator provided in the first embodiment of the present invention includes:

[0005] Energy storage device used to power the refrigerator;

[0006] A charging device for charging the energy storage device using mains power;

[0007] Controller, used for:

[0008] When the power of the energy storage device is detected to be less than the preset maximum power and the mains power is in operation, the current power consumption period of the area where the refrigerator is located is obtained.

[0009] When it is detected that the current electricity consumption period is a low electricity consumption period, the charging device is controlled to charge the energy storage device;

[0010] When the current electricity consumption period is detected to be a low-consumption period, the next electricity consumption period for the region where the refrigerator is located is obtained;

[0011] If it is detected that the next power consumption period is a peak power consumption period and the power of the energy storage device is less than or equal to the preset median power, then the charging device is controlled to charge the energy storage device.

[0012] If the next power consumption period is detected to be a low-power period and the power of the energy storage device is less than or equal to a preset minimum power, then the charging device is controlled to charge the energy storage device until the power of the energy storage device is detected to reach a preset median power.

[0013] In the refrigerator provided in the first embodiment of the present invention, when the controller detects that the power of the energy storage device is less than a preset maximum power and the mains power is on, it mainly controls the charging device to charge the energy storage device during off-peak hours, and the energy storage device supplies power to the refrigerator. Therefore, without affecting the refrigerator's cooling effect, the proportion of electricity consumption during peak hours can be reduced, thereby reducing the peak-valley difference in grid load and balancing power generation and consumption, thus achieving energy conservation. Furthermore, when the controller detects that the current electricity consumption period in the refrigerator's location is a low-consumption period, if it detects that the next electricity consumption period is a peak period and the power of the energy storage device is less than or equal to a preset median power, or if it detects that the next electricity consumption period is an off-peak period and the power of the energy storage device is less than or equal to a preset minimum power, it further controls the charging device to charge the energy storage device. Therefore, it can avoid insufficient power supply to the energy storage device, ensuring normal cooling of the refrigerator.

[0014] In the second embodiment of the refrigerator provided by the present invention, the controller is further configured to:

[0015] When it is detected that the current electricity consumption period is a peak electricity consumption period and the power of the energy storage device is less than or equal to the preset minimum power, the charging device is controlled to charge the energy storage device until the power of the energy storage device reaches the preset median power.

[0016] In the refrigerator provided in the second embodiment of the present invention, when the controller detects that the current power consumption period is a peak power consumption period and the power of the energy storage device is less than or equal to the preset minimum power, it further controls the charging device to charge the energy storage device until the power of the energy storage device reaches the preset median power. Therefore, when the load on the refrigerator increases, it can further ensure that the power of the energy storage device can meet the power demand of the refrigerator, avoiding the occurrence of insufficient power.

[0017] The refrigerator provided in the third embodiment of the present invention has a refrigeration compartment inside; the refrigerator also includes a compressor, a compartment temperature sensor, and an ambient temperature sensor; wherein,

[0018] The compartment temperature sensor is used to detect the compartment temperature of the refrigerated compartment;

[0019] The ambient temperature sensor is used to detect the ambient temperature of the environment in which the refrigerator is currently located;

[0020] Then, the controller is further configured to:

[0021] When the mains power is detected to be in a powered state and the room temperature reaches the preset start-up point temperature, the ambient temperature is acquired;

[0022] If the ambient temperature is determined to be lower than the preset low temperature threshold, the compressor is controlled to run at a preset low speed until the compartment temperature is detected to reach the preset stop point temperature, at which point the compressor is controlled to stop running.

[0023] If the ambient temperature is detected to be less than the preset high temperature threshold and greater than or equal to the preset low temperature threshold, the compressor is controlled to run at a preset medium speed until the compartment temperature is detected to reach the preset stop point temperature, and then the compressor is controlled to stop running.

[0024] If the ambient temperature is detected to be greater than or equal to the preset high temperature threshold, the compressor is controlled to run at a preset high speed until the compartment temperature is detected to reach the preset stop point temperature, at which point the compressor is controlled to stop running.

[0025] In the refrigerator provided in the third embodiment of the present invention, when the controller detects that the mains power is on and the temperature of the refrigerator's cooling compartment has reached the preset start-up temperature, it adjusts the compressor's operating speed according to the ambient temperature of the refrigerator's surroundings. Therefore, when the ambient temperature is low, the compressor can operate at a preset low speed, reducing the refrigerator's power consumption and thus lowering the discharge power of the energy storage device. This prevents excessive current and temperature in the energy storage device, extending its service life. Furthermore, since the compressor's operating speed increases accordingly when the ambient temperature rises, it ensures that the refrigerator's cooling capacity can offset the refrigerator's heat load, thereby achieving a normal and good cooling effect.

[0026] In the refrigerator provided in the fourth embodiment of the present invention, after determining that the ambient temperature is less than a preset low temperature threshold and controlling the compressor to operate at a preset low speed, the controller is further configured to:

[0027] If the compressor's continuous running time reaches a preset duration before the chamber temperature reaches the preset shutdown point temperature, the compressor's speed is adjusted to the preset medium speed.

[0028] In the refrigerator provided in the fourth embodiment of the present invention, if the controller detects that the compressor has been running continuously for a preset low speed and the compartment temperature has not yet reached the preset shutdown point temperature after controlling the compressor to run at a preset low speed, then the controller further adjusts the compressor speed to the preset medium speed. Therefore, the cooling effect of the refrigerator can be further guaranteed.

[0029] In the refrigerator provided in the fifth embodiment of the present invention, after the controller controls the compressor to operate at a preset medium speed if the ambient temperature is detected to be less than a preset high temperature threshold and greater than or equal to the preset low temperature threshold, the controller is further configured to:

[0030] If the compressor's continuous running time reaches a preset duration before the chamber temperature reaches the preset shutdown point temperature, the compressor's speed is adjusted to the preset high speed.

[0031] In the refrigerator provided in the fifth embodiment of the present invention, if the controller detects that the continuous running time of the compressor has reached a preset duration and the compartment temperature has not yet reached the preset shutdown point temperature after controlling the compressor to run at a preset medium speed, then the speed of the compressor is further adjusted to the preset high speed. Therefore, the cooling effect of the refrigerator can be further guaranteed.

[0032] In the sixth embodiment of the refrigerator provided by the present invention, the controller is further configured to:

[0033] When the mains power is detected to be out of power and the energy storage device has a charge greater than the preset minimum charge, if the compartment temperature is detected to reach the preset start-up temperature, the compressor is controlled to run at the preset medium speed until the compartment temperature is detected to reach the preset stop temperature, at which point the compressor is controlled to stop running.

[0034] In the refrigerator provided in the sixth embodiment of the present invention, when the controller detects that the mains power is off and the energy storage device has a charge greater than the preset minimum charge, it controls the compressor to run at a preset speed. Therefore, the refrigerator compartment temperature can be maintained at the user-set temperature.

[0035] In the seventh embodiment of the refrigerator provided by the present invention, the controller is further configured to:

[0036] When the mains power is detected to be out of power and the energy storage device's energy level is less than or equal to the preset minimum energy level, if the compartment temperature is detected to reach the preset forced start temperature, the compressor is controlled to run at the preset low speed until the compartment temperature is detected to reach the preset forced stop temperature, at which point the compressor is controlled to stop running.

[0037] In the refrigerator provided in the seventh embodiment of the present invention, when the controller detects that the mains power is off and the power of the energy storage device is less than or equal to the preset minimum power, it adjusts the compressor's start-up temperature to a preset forced start-up temperature and the stop-down temperature to a preset forced stop-down temperature, and controls the compressor to run at a preset low speed. Therefore, the refrigerator's compartment temperature can be maintained within an appropriate temperature range, reducing the refrigerator's power consumption, maximizing the refrigerator's cooling time, and ensuring that food inside the refrigerator is not thawed.

[0038] The eighth embodiment of the present invention provides a refrigerator control method, wherein the refrigerator includes an energy storage device and a charging device; wherein the energy storage device is used to supply power to the refrigerator, and the charging device is used to charge the energy storage device using mains power; the method includes:

[0039] When the power of the energy storage device is detected to be less than the preset maximum power and the mains power is in operation, the current power consumption period of the area where the refrigerator is located is obtained.

[0040] When it is detected that the current electricity consumption period is a low electricity consumption period, the charging device is controlled to charge the energy storage device;

[0041] When the current electricity consumption period is detected to be a low-consumption period, the next electricity consumption period for the region where the refrigerator is located is obtained;

[0042] If it is detected that the next power consumption period is a peak power consumption period and the power of the energy storage device is less than or equal to the preset median power, then the charging device is controlled to charge the energy storage device.

[0043] If the next power consumption period is detected to be a low-power period and the power of the energy storage device is less than or equal to a preset minimum power, then the charging device is controlled to charge the energy storage device until the power of the energy storage device is detected to reach a preset median power.

[0044] In the refrigerator control method provided in the eighth embodiment of the present invention, when the power of the energy storage device is detected to be less than the preset maximum power and the mains power is on, the charging device is mainly controlled to charge the energy storage device during the off-peak hours, and the energy storage device supplies power to the refrigerator. Therefore, without affecting the refrigerator's cooling effect, the proportion of electricity consumption during peak hours can be reduced, thereby reducing the peak-valley difference of the power grid load and balancing power generation and consumption, thus achieving the goal of energy saving. Furthermore, when the current electricity consumption period in the refrigerator's location is detected to be a low-consumption period, if the next electricity consumption period is detected to be a peak period and the power of the energy storage device is less than or equal to the preset median power, or if the next electricity consumption period is detected to be an off-peak period and the power of the energy storage device is less than or equal to the preset minimum power, the charging device is further controlled to charge the energy storage device. Therefore, insufficient power supply to the energy storage device can be avoided, ensuring normal cooling of the refrigerator.

[0045] The refrigerator control method provided in the ninth embodiment of the present invention further includes:

[0046] When it is detected that the current electricity consumption period is a peak electricity consumption period and the power of the energy storage device is less than or equal to the preset minimum power, the charging device is controlled to charge the energy storage device until the power of the energy storage device reaches the preset median power.

[0047] In the refrigerator control method provided in the ninth embodiment of the present invention, when it is detected that the current electricity consumption period is a peak electricity consumption period and the power of the energy storage device is less than or equal to the preset minimum power, the charging device is further controlled to charge the energy storage device until the power of the energy storage device is detected to reach the preset median power. Therefore, when the refrigerator load increases, it can further ensure that the power of the energy storage device can meet the power demand of the refrigerator, avoiding the occurrence of insufficient power.

[0048] The tenth embodiment of the present invention provides a refrigerator control method, wherein the refrigerator has a refrigeration compartment; the refrigerator further includes a compressor, a compartment temperature sensor, and an ambient temperature sensor; then, the method further includes:

[0049] When the mains power is detected to be in a power supply state and the temperature of the refrigeration compartment reaches the preset start-up temperature, the ambient temperature of the environment in which the refrigerator is located is obtained.

[0050] If the ambient temperature is determined to be lower than the preset low temperature threshold, the compressor is controlled to run at a preset low speed until the compartment temperature is detected to reach the preset stop point temperature, at which point the compressor is controlled to stop running.

[0051] If the ambient temperature is detected to be less than the preset high temperature threshold and greater than or equal to the preset low temperature threshold, the compressor is controlled to run at a preset medium speed until the compartment temperature is detected to reach the preset stop point temperature, and then the compressor is controlled to stop running.

[0052] If the ambient temperature is detected to be greater than or equal to a preset high temperature threshold, the compressor is controlled to run at a preset high speed until the chamber temperature is detected to reach the preset stop point temperature, at which point the compressor is controlled to stop running.

[0053] In the refrigerator control method provided in the tenth embodiment of the present invention, when the mains power is detected to be on and the temperature of the refrigerator's cooling compartment reaches the preset start-up temperature, the compressor's operating speed is adjusted according to the ambient temperature of the refrigerator's surroundings. Therefore, when the ambient temperature is low, the compressor can operate at a preset low speed, reducing the refrigerator's power consumption and thus reducing the discharge power of the energy storage device. This prevents the energy storage device from experiencing excessive current and temperature, thereby extending its service life. Furthermore, since the compressor's operating speed increases accordingly when the ambient temperature rises, it ensures that the refrigerator's cooling capacity can offset the refrigerator's heat load, thereby achieving a normal and effective cooling effect. Attached Figure Description

[0054] Figure 1 This is a circuit diagram illustrating the power supply for a refrigerator according to an embodiment of the present invention.

[0055] Figure 2 This is a schematic diagram of the circuit structure of a refrigerator refrigeration system provided in an embodiment of the present invention.

[0056] Figure 3 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of the present invention.

[0057] Figure 4 This is a schematic diagram of electricity price fluctuations in Guangdong Province provided by an embodiment of the present invention.

[0058] Figure 5 This is a first working flowchart of a controller provided in an embodiment of the present invention.

[0059] Figure 6 This is a structural block diagram of a control system provided in an embodiment of the present invention.

[0060] Figure 7 This is a second working flowchart of the controller provided in an embodiment of the present invention.

[0061] Figure 8 This is a third working flowchart of the controller provided in one embodiment of the present invention.

[0062] Figure 9 This is a fourth working flowchart of the controller provided in one embodiment of the present invention.

[0063] Figure 10 This is a fifth working flowchart of the controller provided in one embodiment of the present invention. Detailed Implementation

[0064] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0065] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0066] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0067] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0068] See Figure 1 This is a circuit diagram illustrating the power supply for a refrigerator according to an embodiment of the present invention.

[0069] The refrigerator provided in this embodiment of the invention includes a refrigeration system, see [link / reference]. Figure 1The refrigeration system includes a compressor 1, a condenser 2, a capillary tube 3, and an evaporator 4. The compressor 1 is the power source for the refrigeration system, driving the refrigerant in the system for heat transfer and exchange. Specifically, the compressor 1 is a variable frequency compressor, which can provide different cooling capacities to the refrigerator by changing its operating time. The evaporator 4 is a refrigeration component, providing cooling capacity to the refrigerator. The capillary tube 3 is used to throttle the refrigerant discharged from the condenser 2. The condenser 2 is used to dissipate heat and condense the high-temperature, high-pressure refrigerant discharged from the compressor 1. (See also...) Figure 2 The refrigeration system also includes an anti-condensation pipe 5, a gas-liquid separator 6, and a dryer filter 7. The working process of the refrigeration system includes compression, condensation, throttling, and evaporation processes. The compression process is as follows: Compressor 1 starts working, and low-temperature, low-pressure refrigerant is drawn into compressor 1. It is compressed into high-temperature, high-pressure superheated gas in the cylinder of compressor 1 and then discharged into condenser 2. The condensation process is as follows: The high-temperature, high-pressure refrigerant gas dissipates heat through condenser 2, and its temperature continuously decreases, gradually cooling into room-temperature, high-pressure saturated vapor, and further cooling into saturated liquid. The temperature no longer decreases; this temperature is called the condensation temperature. The pressure of the refrigerant remains almost constant throughout the condensation process. The throttling process is as follows: The saturated refrigerant liquid after condensation flows into capillary tube 3 after being filtered by dryer filter 7 to remove moisture and impurities. Through capillary tube 3, it undergoes throttling and pressure reduction, turning the refrigerant into room-temperature, low-pressure wet vapor. The evaporation process is as follows: The room-temperature, low-pressure wet vapor begins to absorb heat and vaporize in evaporator 4, not only lowering the temperature of evaporator 4 and its surroundings but also turning the refrigerant into a low-temperature, low-pressure gas. The refrigerant exiting evaporator 4 passes through gas-liquid separator 6 and returns to compressor 1, repeating the above process to transfer heat from inside the refrigerator to the outside air, achieving the purpose of refrigeration.

[0070] The refrigerator provided in this embodiment of the invention includes a cabinet 10. The cabinet 10 has at least one cooling compartment. The refrigeration system is used to cool the cooling compartment within the cabinet 10. Specifically, as follows... Figure 3 As shown, the refrigerator in this embodiment has an approximately rectangular shape. The refrigerator includes a cabinet 10 defining a storage space. The cabinet 10 has at least one refrigeration compartment, and each refrigeration compartment has one or more doors 200 at its opening. For example, in... Figure 3The upper compartment is a refrigerator compartment, equipped with a double door 200. The door 200 includes a door outer shell 210 on the outside of the cabinet 10, a door inner liner 220 on the inside of the cabinet 10, an upper end cover 230, a lower end cover 240, and an insulation layer between the door outer shell 210, the door inner liner 220, the upper end cover 230, and the lower end cover 240; typically, the insulation layer is filled with foam material. Depending on its purpose, the compartment can be configured as a refrigerator compartment, a freezer compartment, a variable temperature compartment, etc.

[0071] The refrigerator provided in this embodiment of the invention also includes an energy storage device 20, which is disposed inside the cabinet 10. Its output terminal is connected to the power input terminal of the refrigerator, and it is used to supply power to the refrigerator. For example, it is used to supply power to devices such as the compressor 1, condenser 2, evaporator 4, controller 40, compartment temperature sensor 50, and ambient temperature sensor 60 in the refrigerator. The energy storage device 20 has the function of simultaneous charging and discharging. Its maximum discharge power is the maximum operating power of the refrigerator, and its charging power is greater than or equal to the discharge power. Preferably, the maximum storage capacity of the energy storage device 20 is sufficient to allow the refrigerator to operate at its maximum power for at least two days. In actual operation, if the energy storage device 20 needs to be replaced, it can be removed, and the refrigerator can be directly connected to the mains power. Furthermore, when the controller 40 detects that the energy storage device 20 is fully charged, the controller 40 will control the charging device 30 to stop charging the energy storage device 20 to avoid overcharging.

[0072] The refrigerator provided in this embodiment of the invention also includes a charging device 30, whose input end is connected to the mains power and whose output end is connected to the input end of the energy storage device 20, and is used to charge the energy storage device 20 using the mains power.

[0073] The refrigerator provided in this embodiment of the invention also includes a controller 40. The controller 40 is specifically used for:

[0074] When the power of the energy storage device 20 is detected to be less than the preset maximum power and the mains power is in operation, the current power consumption period of the area where the refrigerator is located is obtained.

[0075] When it is detected that the current electricity consumption period is a low electricity consumption period, the charging device 30 is controlled to charge the energy storage device 20.

[0076] When the current electricity consumption period is detected to be a low-consumption period, the next electricity consumption period for the region where the refrigerator is located is obtained;

[0077] If it is detected that the next power consumption period is a peak power consumption period and the power of the energy storage device 20 is less than or equal to the preset median power, then the charging device 30 is controlled to charge the energy storage device 20.

[0078] If the next power consumption period is detected to be a low power consumption period and the power of the energy storage device 20 is less than or equal to the preset minimum power, then the charging device 30 is controlled to charge the energy storage device 20 until the power of the energy storage device 20 is detected to reach the preset median power.

[0079] The refrigerator provided in this embodiment of the invention, when the controller 40 detects that the power of the energy storage device 20 is less than a preset maximum power and the mains power is available, mainly controls the charging device 30 to charge the energy storage device 20 during off-peak hours, and the energy storage device 20 supplies power to the refrigerator. Therefore, without affecting the refrigerator's cooling effect, the proportion of electricity consumption during peak hours can be reduced, thereby reducing the peak-valley difference in grid load and balancing power generation and consumption, thus achieving energy conservation. Furthermore, when the controller 40 detects that the current electricity consumption period in the refrigerator's location is a low-consumption period, if it detects that the next electricity consumption period is a peak period and the power of the energy storage device 20 is less than or equal to a preset median power, or if it detects that the next electricity consumption period is an off-peak period and the power of the energy storage device 20 is less than or equal to a preset minimum power, it further controls the charging device 30 to charge the energy storage device 20. Therefore, it can avoid insufficient power supply to the energy storage device 20, ensuring normal cooling of the refrigerator.

[0080] It is worth noting that in recent years, the peak load characteristics of the power system during summer and winter have become increasingly prominent, leading to significant fluctuations in power demand, instability in power system operation, and substantial energy losses. Therefore, to encourage customers to rationally schedule their electricity consumption, smooth out peak and off-peak periods, and improve the efficiency of power resource utilization, current electricity policies mostly adopt time-of-use pricing, dividing the day's electricity consumption into three periods: peak consumption, level consumption, and off-peak. Among these, the price is highest during peak consumption, lowest during off-peak periods, and moderate during level consumption periods. (See also...) Figure 4Taking Guangdong Province's electricity price as an example, the off-peak electricity consumption period in Guangdong Province is from 0:00 to 8:00, with an electricity price of 0.23 yuan / kWh; the normal consumption periods are from 8:00 to 10:00, 12:00 to 14:00, and 19:00 to 24:00, with an electricity price of 0.6 yuan / kWh; and the peak consumption periods are from 10:00 to 12:00 and 14:00 to 19:00, with an electricity price of 1.03 yuan / kWh. This embodiment uses an energy storage device 20 to power the refrigerator, storing electricity during off-peak periods to reduce grid (mains) power consumption during normal and peak periods. This reduces the proportion of electricity consumption during peak periods, achieving the goal of "peak shaving and valley leveling" in the power grid, thus saving energy. Furthermore, since the electricity price during off-peak hours is much cheaper than that during peak and off-peak hours, the method of controlling the charging device 30 to charge the energy storage device 20 during off-peak hours to supply electricity to the refrigerator during peak and off-peak hours can also reduce the electricity cost of the refrigerator to some extent.

[0081] Furthermore, considering that increased ambient temperature, more frequent door openings, or large amounts of food placed in the refrigerator may increase its load and power consumption, the controller 40 needs to control the charging device 30 to charge the energy storage device 20 when the current power consumption period is a low-consumption period, the next power consumption period is a peak period, and the energy storage device 20's power level is less than or equal to a preset median power level; or, when the controller 40 detects that the next power consumption period is an off-peak period, and the energy storage device 20's power level is less than or equal to a preset minimum power level. This prevents the energy storage device 20 from being insufficient to maintain the refrigerator's normal operation. Simultaneously, considering electricity prices, when the controller 40 controls the charging device 30 to charge the energy storage device 20 during a low-consumption period and the next power consumption period is an off-peak period, if the controller detects that the energy storage device 20's power level has reached the preset median power level, the controller 30 needs to stop charging the energy storage device 20. Preferably, the preset median power level is 50% of the energy storage device 20's full charge.

[0082] Furthermore, the controller 40 is also used for:

[0083] When it is detected that the current electricity consumption period is a peak electricity consumption period and the power of the energy storage device 20 is less than or equal to the preset minimum power, the charging device 30 is controlled to charge the energy storage device 20 until the power of the energy storage device 20 reaches the preset median power.

[0084] In the refrigerator provided in this embodiment, when the controller 40 detects that the current power consumption period is a peak power consumption period and the power of the energy storage device 20 is less than or equal to the preset minimum power, it further controls the charging device 30 to charge the energy storage device 20 until the power of the energy storage device 20 reaches the preset median power. Therefore, when the refrigerator's load increases, it can further ensure that the power of the energy storage device 20 can meet the refrigerator's power demand, avoiding insufficient power.

[0085] It should be noted that since the capacity of the energy storage device 20 is usually sufficient to meet the refrigerator's maximum power usage for 2 days, there are very few cases where the energy storage device 20's power is less than or equal to the preset minimum power during peak electricity consumption periods.

[0086] Preferably, when the controller 40 controls the charging device 30 to charge the energy storage device 20 if it detects that the next power consumption period is a peak power consumption period and the power of the energy storage device 20 is less than or equal to a preset median power, the controller 40 controls the charging device 30 to stop charging the energy storage device 20 if it detects that the power of the energy storage device 20 has reached a preset protection power.

[0087] For example, combined Figure 5 The diagram shown is a first-order workflow diagram of the controller provided in an embodiment of the present invention. The controller 40 is used to perform the following steps:

[0088] Step S1: Determine whether the power of the energy storage device 20 is less than the preset maximum power and whether the mains power is in the power supply state. If yes, proceed to step S2; otherwise, continue to detect the power of the energy storage device 20 and the mains power status.

[0089] Step S2: Obtain the current electricity usage period in the area where the refrigerator is located, and then proceed to step S3a.

[0090] Step S3a: Determine whether the current electricity consumption period is a low-consumption period. If yes, proceed to step S4; otherwise, proceed to step S3b.

[0091] Step S4: Control the charging device 30 to charge the energy storage device 20.

[0092] Step S3b: Determine whether the current power consumption period is a low-power consumption period. If yes, proceed to step S31b; otherwise, proceed to step S3c.

[0093] Step S31b: Obtain the next electricity usage period for the area where the refrigerator is located, and then proceed to step S32b.

[0094] Step S32b: Detect whether the next electricity consumption period is a peak electricity consumption period. If so, proceed to step S33b; otherwise, proceed to step S32b'.

[0095] Step S33b: Determine whether the power of the energy storage device 20 is less than or equal to the preset median power. If yes, proceed to step S34b; otherwise, continue monitoring the power of the energy storage device 20.

[0096] Step S34b: Control the charging device 30 to charge the energy storage device 20, and then proceed to step S35b.

[0097] Step S35b: Determine whether the power of the energy storage device 20 has reached the preset protection power. If yes, proceed to step S6; otherwise, continue monitoring the power of the energy storage device 20.

[0098] Step S32b′: Determine the next electricity consumption period as an off-peak period, and then proceed to step S33b′.

[0099] Step S33b': Determine whether the power of the energy storage device 20 is less than or equal to the preset minimum power. If yes, proceed to step S34b'; otherwise, continue monitoring the power of the energy storage device 20.

[0100] Step S34b': Control the charging device 30 to charge the energy storage device 20, and then proceed to step S35b'.

[0101] Step S35b': Determine whether the power of the energy storage device 20 has reached the preset median power. If yes, proceed to step S6; otherwise, continue monitoring the power of the energy storage device 20.

[0102] Step S3c: Determine that the current electricity consumption period is a peak electricity consumption period, and then proceed to step S31c.

[0103] Step S31c: Determine whether the power of the energy storage device 20 is less than or equal to the preset minimum power. If yes, proceed to step S32c; otherwise, continue monitoring the power of the energy storage device 20.

[0104] Step S32c: Control the charging device 30 to charge the energy storage device 20, and then proceed to step S33c.

[0105] Step S33c: Determine whether the power of the energy storage device 20 has reached the preset median power. If yes, proceed to step S6; otherwise, continue monitoring the power of the energy storage device 20.

[0106] Step S6: Control the charging device 30 to stop charging the energy storage device 20.

[0107] Furthermore, it is worth noting that, typically, taking the energy storage device 20 as a battery as an example, when the battery's charge is 0% to 80% of its capacity (full charge), the battery can maintain a high charging power. However, when the battery's charge is 80% to 100% of its capacity, the charging power is only one-third of that when the charge is 0% to 80%. Moreover, when the battery's charge is below 20% of its capacity, its lifespan is easily damaged. Therefore, preferably, the preset maximum charge is the full charge of the energy storage device, the preset minimum charge is 30% of the full charge (leaving 10% for protecting the energy storage device 20), the preset median charge is greater than the preset minimum charge, the preset protection charge is greater than the preset median charge and less than the preset maximum charge, the preset median charge is 50% of the full charge, and the preset protection charge is 80% of the full charge.

[0108] See Figure 6 Furthermore, the refrigerator also includes a compartment temperature sensor 50 and an ambient temperature sensor 60; wherein, the compartment temperature sensor 50 is used to detect the compartment temperature of the refrigeration compartment; and the ambient temperature sensor 60 is used to detect the ambient temperature of the environment in which the refrigerator is currently located.

[0109] Then, the controller 40 is further configured to:

[0110] When the mains power is detected to be in a powered state and the room temperature reaches the preset start-up point temperature, the ambient temperature is acquired;

[0111] If it is determined that the ambient temperature is less than the preset low temperature threshold, the compressor 1 is controlled to run at a preset low speed until the temperature of the compartment is detected to reach the preset stop point temperature, and then the compressor 1 is controlled to stop running.

[0112] If the ambient temperature is detected to be less than the preset high temperature threshold and greater than or equal to the preset low temperature threshold, the compressor 1 is controlled to run at a preset medium speed until the compartment temperature is detected to reach the preset stop point temperature, and the compressor 1 is controlled to stop running.

[0113] If the ambient temperature is detected to be greater than or equal to the preset high temperature threshold, the compressor 1 is controlled to run at a preset high speed until the chamber temperature is detected to reach the preset stop point temperature, at which point the compressor 1 is controlled to stop running.

[0114] In the refrigerator provided in this embodiment, when the controller 40 detects that the mains power is on and the temperature of the refrigerator's cooling compartment has reached the preset start-up temperature, it adjusts the operating speed of the compressor 1 according to the ambient temperature of the refrigerator's surroundings. Therefore, when the ambient temperature is low, the compressor 1 can operate at a preset low speed, reducing the refrigerator's power consumption and thus lowering the discharge power of the energy storage device 20. This prevents the energy storage device 20 from experiencing excessive current and temperature, thereby extending its service life. Furthermore, as the ambient temperature rises, the operating speed of the compressor 1 also increases accordingly, ensuring that the refrigerator's cooling capacity can offset the refrigerator's heat load, thus achieving a normal and effective cooling effect.

[0115] For example, combined Figure 7 The diagram shown is a second working flowchart of the controller provided in an embodiment of the present invention. The controller 40 is used to perform the following steps:

[0116] Step S11: Determine whether the mains power is detected to be in a power supply state and the room temperature has reached the preset start-up point temperature. If yes, proceed to step S12; otherwise, continue to detect the mains power status and room temperature.

[0117] Step S12: Obtain the ambient temperature of the environment where the refrigerator is located, and then proceed to step S13.

[0118] Step S13: Determine whether the ambient temperature is lower than the preset low temperature threshold. If yes, proceed to step S151; otherwise, proceed to step S14.

[0119] Step S14: Determine whether the ambient temperature is lower than the preset high temperature threshold. If yes, proceed to step S152; otherwise, proceed to step S153.

[0120] Step S151: Control compressor 1 to run at a preset low speed, and then proceed to step S16.

[0121] Step S152: Control compressor 1 to run at a preset medium speed, and then proceed to step S16.

[0122] Step S153: Control compressor 1 to run at a preset high speed, and then proceed to step S16.

[0123] Step S16: Determine whether the room temperature has reached the preset stop point temperature. If yes, proceed to step S17; otherwise, continue monitoring the room temperature.

[0124] Step S17: Control compressor 1 to stop running.

[0125] It's worth noting that since off-peak electricity usage typically occurs at night, the refrigerator is used less frequently during this time, and the ambient temperature is also lower compared to peak and off-peak hours. This results in a lower heat load on the refrigerator and a correspondingly lower compressor speed, leading to lower discharge power from the energy storage device 20. This allows the energy storage device 20 to be quickly charged during off-peak hours, providing power for discharge during peak and off-peak hours. Furthermore, the lower ambient temperature during off-peak hours, typically at night, results in a lower compressor speed, leading to less noise from the refrigerator and improving the user experience.

[0126] As one optional embodiment, after determining that the ambient temperature is lower than a preset low temperature threshold and controlling the compressor 1 to operate at a preset low speed, the controller 40 is further configured to:

[0127] If the compressor 1 has been running for a preset duration for a period of time before the temperature of the compartment reaches the preset shutdown point, the speed of the compressor 1 will be adjusted to the preset medium speed.

[0128] In the refrigerator provided in this embodiment, after the controller 40 controls the compressor 1 to run at a preset low speed, if it detects that the continuous running time of the compressor 1 has reached a preset duration and the compartment temperature has not yet reached the preset shutdown point temperature, it further adjusts the speed of the compressor 1 to the preset medium speed. Therefore, the cooling effect of the refrigerator can be further guaranteed.

[0129] As one optional embodiment, after controlling the compressor 1 to operate at a preset medium speed if the ambient temperature is detected to be less than a preset high temperature threshold and greater than or equal to the preset low temperature threshold, the controller 40 is further configured to:

[0130] If the continuous running time of the compressor 1 reaches a preset duration before the temperature of the compartment is detected to reach the preset shutdown point temperature, the speed of the compressor 1 is adjusted to the preset high speed.

[0131] In the refrigerator provided in this embodiment, after the controller controls the compressor 1 to run at a preset medium speed, if it detects that the continuous running time of the compressor 1 has reached a preset duration and the compartment temperature has not yet reached the preset shutdown point temperature, the controller further adjusts the speed of the compressor 1 to the preset high speed. Therefore, the cooling effect of the refrigerator can be further guaranteed.

[0132] For example, combined Figure 8 The diagram shown is a third operational flowchart of the controller 40 provided in an embodiment of the present invention. The controller 40 is used to perform the following steps:

[0133] Step S11: Determine whether the mains power is detected to be in a power supply state and the room temperature has reached the preset start-up point temperature. If yes, proceed to step S12; otherwise, continue to detect the mains power status and room temperature.

[0134] Step S12: Obtain the ambient temperature of the environment where the refrigerator is located, and then proceed to step S13.

[0135] Step S13: Determine whether the ambient temperature is lower than the preset low temperature threshold. If yes, proceed to step S151; otherwise, proceed to step S14.

[0136] Step S14: Determine whether the ambient temperature is lower than the preset high temperature threshold. If yes, proceed to step S152; otherwise, proceed to step S153.

[0137] Step S151: Control the compressor 1 to run at a preset low speed, and then proceed to step S151a.

[0138] Step S152: Control compressor 1 to run at a preset medium speed, and then proceed to step S152a.

[0139] Step S153: Control compressor 1 to run at a preset high speed, and then proceed to step S16.

[0140] Step S151a: Determine whether the continuous running time of compressor 1 has reached the preset duration. If yes, proceed to step S151b; otherwise, proceed to step S16.

[0141] Step S152a: Determine whether the continuous running time of compressor 1 has reached the preset duration. If yes, proceed to step S152b; otherwise, proceed to step S16.

[0142] Step S151b: Adjust the speed of compressor 1 to the preset medium speed, and then proceed to step S16.

[0143] Step S152b: Adjust the speed of compressor 1 to the preset high speed, and then proceed to step S16.

[0144] Step S16: Determine whether the temperature of the room has reached the preset shutdown point temperature. If yes, proceed to step S17; otherwise, continue monitoring the room temperature.

[0145] Step S17: Control compressor 1 to stop running.

[0146] In one preferred embodiment, the controller 40 is further configured to:

[0147] When the mains power is detected to be out of power and the power of the energy storage device 20 is greater than the preset minimum power, if the temperature of the compartment is detected to reach the preset start-up temperature, the compressor 1 is controlled to run at the preset medium speed until the temperature of the compartment is detected to reach the preset stop temperature, and the compressor 1 is controlled to stop running.

[0148] In the refrigerator provided in this embodiment, when the controller 40 detects that the mains power is off and the power of the energy storage device 20 is greater than the preset minimum power, it controls the compressor 1 to maintain its operating speed at a preset medium speed. Therefore, the refrigerator compartment temperature can be maintained at the temperature set by the user.

[0149] For example, combined Figure 9 The diagram shows a fourth workflow of the controller provided in this embodiment of the invention. The controller 40 is used to perform the following steps: Step S21: Determine whether the mains power is out and whether the power of the energy storage device 20 is greater than a preset minimum power. If yes, proceed to step S22; otherwise, continue to detect the mains power status and the power of the energy storage device 20. Step S22: Determine whether the compartment temperature has reached a preset start-up temperature. If yes, proceed to step S23; otherwise, continue to monitor the compartment temperature. Step S23: Control the compressor 1 to run at a preset medium speed, and then proceed to step S24. Step S24: Determine whether the compartment temperature has reached a preset stop temperature. If yes, proceed to step S25; otherwise, continue to monitor the compartment temperature. Step S25: Control the compressor 1 to stop running.

[0150] Furthermore, the controller 40 is also used for:

[0151] When the mains power is detected to be out of power and the power of the energy storage device 20 is less than or equal to the preset minimum power, if the compartment temperature is detected to reach the preset forced start temperature, the compressor 1 is controlled to run at the preset low speed until the compartment temperature is detected to reach the preset forced stop temperature, and the compressor 1 is controlled to stop running.

[0152] In the refrigerator provided in this embodiment, when the controller 40 detects that the mains power is off and the power of the energy storage device 20 is less than or equal to the preset minimum power, it adjusts the start-up temperature of the compressor 1 to the preset forced start-up temperature and the stop-down temperature to the preset forced stop-down temperature, and controls the compressor 1 to run at a preset low speed. Therefore, the refrigerator's compartment temperature can be maintained within an appropriate temperature range, reducing the refrigerator's power consumption, maximizing the refrigerator's cooling time, and ensuring that food inside the refrigerator is not thawed.

[0153] For example, combined Figure 10The diagram shown is a fifth flowchart of the controller provided in this embodiment of the invention. The controller 40 is used to perform the following steps: Step S31: Determine whether the mains power is detected to be out of power and whether the power of the energy storage device 20 is less than or equal to a preset minimum power. If yes, proceed to step S32; otherwise, continue to detect the mains power status and the power of the energy storage device 20. Step S32: Determine whether the room temperature has reached a preset forced start-up temperature. If yes, proceed to step S33; otherwise, continue to monitor the room temperature. Step S33: Control the compressor 1 to run at a preset low speed, and then proceed to step S34. Step S34: Determine whether the room temperature has reached a preset forced stop temperature. If yes, proceed to step S35; otherwise, continue to monitor the room temperature. Step S35: Control the compressor 1 to stop running.

[0154] Preferably, the preset forced start-up temperature is greater than or equal to the preset start-up point temperature, and the preset forced stop temperature is greater than or equal to the preset stop point temperature.

[0155] It is worth noting that in actual operation, the preset start-up temperature and preset stop-down temperature need to be adjusted according to the user-set refrigerator and freezer temperatures. That is, the compressor 1 is controlled to operate according to the user-set temperature. For example, if the user sets the refrigerator temperature to 2℃, the preset start-up temperature of compressor 1 is set to 4℃ (2℃ higher than the user-set temperature), and the preset stop-down temperature is set to the user-set temperature of 2℃. When the power of the energy storage device 20 is less than or equal to the preset minimum power and the mains power has not been restored, the compressor 1 needs to be forced to operate at a preset low speed to reduce the refrigerator's power consumption, thereby maximizing the refrigerator's cooling time and maintaining the compartment temperature within an appropriate range to prevent food from thawing. Furthermore, to reduce the number of times the compressor 1 starts and stops, the refrigerator cannot operate at the user-set temperature at this time; instead, the compressor 1 needs to be controlled according to the operating mode of 5℃ for refrigerator and -12℃ for freezer. That is, when the mains power fails and the power of the energy storage device 20 is less than or equal to the preset minimum power, the start-up and stop-up temperatures of the compressor 1 need to be increased. The start-up temperature of the compressor 1 is adjusted to the preset forced start-up temperature (e.g., 7°C), and the stop-up temperature of the compressor 1 is adjusted to the preset forced stop-up temperature (e.g., 5°C). It is worth noting that the preset forced start-up and forced stop-up temperatures can be set not only according to the refrigeration 5°C and freezing -12°C operation mode, but also according to the refrigeration 7°C and freezing -10°C operation mode; no specific limitation is made here.

[0156] The refrigerator control method provided in this embodiment includes an energy storage device and a charging device; wherein the energy storage device is used to supply power to the refrigerator, and the charging device is used to charge the energy storage device using mains power; the method includes:

[0157] When the power of the energy storage device is detected to be less than the preset maximum power and the mains power is in operation, the current power consumption period of the area where the refrigerator is located is obtained.

[0158] When it is detected that the current electricity consumption period is a low electricity consumption period, the charging device is controlled to charge the energy storage device;

[0159] When the current electricity consumption period is detected to be a low-consumption period, the next electricity consumption period for the region where the refrigerator is located is obtained;

[0160] If it is detected that the next power consumption period is a peak power consumption period and the power of the energy storage device is less than or equal to the preset median power, then the charging device is controlled to charge the energy storage device.

[0161] If the next power consumption period is detected to be a low-power period and the power of the energy storage device is less than or equal to a preset minimum power, then the charging device is controlled to charge the energy storage device until the power of the energy storage device is detected to reach a preset median power.

[0162] In the refrigerator control method provided in this embodiment, when the power of the energy storage device is detected to be less than the preset maximum power and the mains power is on, the charging device is mainly controlled to charge the energy storage device during off-peak hours, and the energy storage device supplies power to the refrigerator. Therefore, without affecting the refrigerator's cooling effect, the proportion of electricity consumption during peak hours can be reduced, thereby reducing the peak-valley difference in grid load and balancing power generation and consumption, thus achieving energy conservation. Furthermore, when the current electricity consumption period in the refrigerator's location is detected to be a low-consumption period, if the next electricity consumption period is detected to be a peak period and the power of the energy storage device is less than or equal to the preset median power, or if the next electricity consumption period is detected to be an off-peak period and the power of the energy storage device is less than or equal to the preset minimum power, the charging device is further controlled to charge the energy storage device. Therefore, insufficient power supply to the energy storage device can be avoided, ensuring normal cooling of the refrigerator.

[0163] As one specific embodiment, the method further includes:

[0164] When it is detected that the current electricity consumption period is a peak electricity consumption period and the power of the energy storage device is less than or equal to the preset minimum power, the charging device is controlled to charge the energy storage device until the power of the energy storage device reaches the preset median power.

[0165] In the refrigerator control method provided in this embodiment, when it is detected that the current electricity consumption period is a peak electricity consumption period and the power of the energy storage device is less than or equal to the preset minimum power, the charging device is further controlled to charge the energy storage device until the power of the energy storage device reaches the preset median power. Therefore, when the refrigerator's load increases, it can further ensure that the power of the energy storage device can meet the refrigerator's power demand, avoiding the occurrence of insufficient power.

[0166] Furthermore, the refrigerator has a refrigeration compartment inside; the refrigerator also includes a compressor, a compartment temperature sensor, and an ambient temperature sensor; therefore, the method further includes:

[0167] When the mains power is detected to be in a power supply state and the temperature of the refrigeration compartment reaches the preset start-up temperature, the ambient temperature of the environment in which the refrigerator is located is obtained.

[0168] If the ambient temperature is determined to be lower than the preset low temperature threshold, the compressor is controlled to run at a preset low speed until the compartment temperature is detected to reach the preset stop point temperature, at which point the compressor is controlled to stop running.

[0169] If the ambient temperature is detected to be less than the preset high temperature threshold and greater than or equal to the preset low temperature threshold, the compressor is controlled to run at a preset medium speed until the compartment temperature is detected to reach the preset stop point temperature, and then the compressor is controlled to stop running.

[0170] If the ambient temperature is detected to be greater than or equal to a preset high temperature threshold, the compressor is controlled to run at a preset high speed until the chamber temperature is detected to reach the preset stop point temperature, at which point the compressor is controlled to stop running.

[0171] In the refrigerator control method provided in this embodiment, when the mains power is detected to be on and the temperature of the refrigerator's cooling compartment reaches the preset start-up temperature, the compressor's operating speed is adjusted according to the ambient temperature of the refrigerator's surroundings. Therefore, when the ambient temperature is low, the compressor can operate at a preset low speed, reducing the refrigerator's power consumption and thus lowering the discharge power of the energy storage device. This prevents excessive current and temperature in the energy storage device, extending its lifespan. Furthermore, as the ambient temperature rises, the compressor's operating speed also increases accordingly, ensuring that the refrigerator's cooling capacity can offset its heat load, thereby achieving a normal and effective cooling effect.

[0172] As one optional embodiment, after determining that the ambient temperature is lower than a preset low temperature threshold and controlling the compressor to operate at a preset low speed, the method further includes:

[0173] If the compressor's continuous running time reaches a preset duration before the chamber temperature reaches the preset shutdown point temperature, the compressor's speed is adjusted to the preset medium speed.

[0174] In the refrigerator control method provided in this embodiment, after controlling the compressor to run at a preset low speed, if it is detected that the continuous running time of the compressor has reached a preset duration and the compartment temperature has not yet reached the preset stop point temperature, the speed of the compressor is further adjusted to the preset medium speed. Therefore, the cooling effect of the refrigerator can be further guaranteed.

[0175] Preferably, after controlling the compressor to operate at a preset medium speed if the ambient temperature is detected to be less than a preset high temperature threshold and greater than or equal to the preset low temperature threshold, the method further includes:

[0176] If the compressor's continuous running time reaches a preset duration before the chamber temperature reaches the preset shutdown point temperature, the compressor's speed is adjusted to the preset high speed.

[0177] In the refrigerator control method provided in this embodiment, after controlling the compressor to run at a preset medium speed, if it is detected that the continuous running time of the compressor has reached a preset duration and the compartment temperature has not yet reached the preset shutdown point temperature, the speed of the compressor is further adjusted to the preset high speed. Therefore, the cooling effect of the refrigerator can be further guaranteed.

[0178] Preferably, the method further includes:

[0179] When the mains power is detected to be out of power and the energy storage device has a charge greater than the preset minimum charge, if the compartment temperature is detected to reach the preset start-up temperature, the compressor is controlled to run at the preset medium speed until the compartment temperature is detected to reach the preset stop temperature, at which point the compressor is controlled to stop running.

[0180] In the refrigerator control method provided in this embodiment, when a power outage is detected and the energy storage device has a charge greater than the preset minimum charge, the compressor's operating speed is maintained at a preset medium speed. Therefore, the refrigerator's compartment temperature can be maintained at the user-set temperature.

[0181] Furthermore, the method also includes:

[0182] When the mains power is detected to be out of power and the energy storage device's energy level is less than or equal to the preset minimum energy level, if the compartment temperature is detected to reach the preset forced start temperature, the compressor is controlled to run at the preset low speed until the compartment temperature is detected to reach the preset forced stop temperature, at which point the compressor is controlled to stop running.

[0183] In the refrigerator control method provided in this embodiment, when the mains power is detected to be out of service and the power of the energy storage device is less than or equal to the preset minimum power, the compressor's start-up temperature is adjusted to a preset forced start-up temperature, and the stop-up temperature is adjusted to a preset forced stop-up temperature. The compressor is then controlled to operate at a preset low speed. Therefore, the refrigerator's compartment temperature can be maintained within an appropriate temperature range, reducing power consumption, maximizing the refrigerator's cooling time, and ensuring that food inside the refrigerator does not thaw.

[0184] The specific description of the refrigerator control method provided in this embodiment can be found in the specific descriptions of the various embodiments of the refrigerator described above, and will not be repeated here.

[0185] It should be noted that the device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Furthermore, in the accompanying drawings of the device embodiments provided by this invention, the connection relationships between modules indicate that they have communication connections, which can be specifically implemented as one or more communication buses or signal lines. Those skilled in the art can understand and implement this without any creative effort.

[0186] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A refrigerator, characterized in that, include: Energy storage device used to power the refrigerator; A charging device for charging the energy storage device using mains power; The refrigerator has a refrigeration compartment inside; the refrigerator also includes a compressor, a compartment temperature sensor, and an ambient temperature sensor; wherein, the compartment temperature sensor is used to detect the compartment temperature of the refrigeration compartment; the ambient temperature sensor is used to detect the ambient temperature of the environment in which the refrigerator is currently located; Controller, used for: When the power of the energy storage device is detected to be less than the preset maximum power and the mains power is in operation, the current power consumption period of the area where the refrigerator is located is obtained. When it is detected that the current electricity consumption period is a low electricity consumption period, the charging device is controlled to charge the energy storage device; When the current electricity consumption period is detected to be a low-consumption period, the next electricity consumption period for the region where the refrigerator is located is obtained; If it is detected that the next power consumption period is a peak power consumption period and the power of the energy storage device is less than or equal to the preset median power, then the charging device is controlled to charge the energy storage device. If it is detected that the next power consumption period is a low power consumption period and the power of the energy storage device is less than or equal to the preset minimum power, then the charging device is controlled to charge the energy storage device until the power of the energy storage device is detected to reach the preset median power. When the mains power is detected to be in a powered state and the room temperature reaches the preset start-up point temperature, the ambient temperature is acquired; If the ambient temperature is determined to be lower than the preset low temperature threshold, the compressor is controlled to run at a preset low speed until the compartment temperature is detected to reach the preset stop point temperature, at which point the compressor is controlled to stop running. If the ambient temperature is detected to be greater than or equal to a preset high temperature threshold, the compressor is controlled to run at a preset high speed until the chamber temperature is detected to reach the preset stop point temperature, at which point the compressor is controlled to stop running.

2. The refrigerator as described in claim 1, characterized in that, The controller is also used for: When it is detected that the current electricity consumption period is a peak electricity consumption period and the power of the energy storage device is less than or equal to the preset minimum power, the charging device is controlled to charge the energy storage device until the power of the energy storage device reaches the preset median power.

3. The refrigerator as described in claim 1, characterized in that, The controller is also used for: If the ambient temperature is detected to be lower than the preset high temperature threshold and greater than or equal to the preset low temperature threshold, the compressor is controlled to run at a preset medium speed until the compartment temperature is detected to reach the preset stop point temperature, at which point the compressor is controlled to stop running.

4. The refrigerator as described in claim 3, characterized in that, If it is determined that the ambient temperature is lower than a preset low temperature threshold, and the compressor is controlled to operate at a preset low speed, the controller is further configured to: If the compressor's continuous running time reaches a preset duration before the chamber temperature reaches the preset shutdown point temperature, the compressor's speed is adjusted to the preset medium speed.

5. The refrigerator as described in claim 3, characterized in that, If the ambient temperature is detected to be less than a preset high-temperature threshold and greater than or equal to a preset low-temperature threshold, and the compressor is then controlled to operate at a preset medium speed, the controller is further configured to: If the compressor's continuous running time reaches a preset duration before the chamber temperature reaches the preset shutdown point temperature, the compressor's speed is adjusted to the preset high speed.

6. The refrigerator as described in claim 3, characterized in that, The controller is also used for: When the mains power is detected to be out of power and the energy storage device has a charge greater than the preset minimum charge, if the compartment temperature is detected to reach the preset start-up temperature, the compressor is controlled to run at the preset medium speed until the compartment temperature is detected to reach the preset stop temperature, at which point the compressor is controlled to stop running.

7. The refrigerator as described in claim 3, characterized in that, The controller is also used for: When the mains power is detected to be out of power and the energy storage device's energy level is less than or equal to the preset minimum energy level, if the compartment temperature is detected to reach the preset forced start temperature, the compressor is controlled to run at the preset low speed until the compartment temperature is detected to reach the preset forced stop temperature, at which point the compressor is controlled to stop running.

8. A method for controlling a refrigerator, characterized in that, The refrigerator includes an energy storage device and a charging device; wherein the energy storage device is used to supply power to the refrigerator, and the charging device is used to charge the energy storage device using mains power; the method includes: When the power of the energy storage device is detected to be less than the preset maximum power and the mains power is in operation, the current power consumption period of the area where the refrigerator is located is obtained. When it is detected that the current electricity consumption period is a low electricity consumption period, the charging device is controlled to charge the energy storage device; When the current electricity consumption period is detected to be a low-consumption period, the next electricity consumption period for the region where the refrigerator is located is obtained; If it is detected that the next power consumption period is a peak power consumption period and the power of the energy storage device is less than or equal to the preset median power, then the charging device is controlled to charge the energy storage device. If it is detected that the next power consumption period is a low power consumption period and the power of the energy storage device is less than or equal to the preset minimum power, then the charging device is controlled to charge the energy storage device until the power of the energy storage device is detected to reach the preset median power. The refrigerator has a refrigeration compartment inside; the refrigerator also includes a compressor, a compartment temperature sensor, and an ambient temperature sensor; therefore, the method further includes: When the mains power is detected to be on and the temperature of the refrigeration compartment reaches the preset start-up temperature, the ambient temperature of the environment in which the refrigerator is located is obtained. If the ambient temperature is determined to be lower than the preset low temperature threshold, the compressor is controlled to run at a preset low speed until the compartment temperature is detected to reach the preset stop point temperature, at which point the compressor is controlled to stop running. If the ambient temperature is detected to be greater than or equal to a preset high temperature threshold, the compressor is controlled to run at a preset high speed until the chamber temperature is detected to reach the preset stop point temperature, at which point the compressor is controlled to stop running.

9. The refrigerator control method as described in claim 8, characterized in that, The method further includes: When it is detected that the current electricity consumption period is a peak electricity consumption period and the power of the energy storage device is less than or equal to the preset minimum power, the charging device is controlled to charge the energy storage device until the power of the energy storage device reaches the preset median power.

10. The refrigerator control method as described in claim 9, characterized in that, The method further includes: If the ambient temperature is detected to be lower than the preset high temperature threshold and greater than or equal to the preset low temperature threshold, the compressor is controlled to run at a preset medium speed until the compartment temperature is detected to reach the preset stop point temperature, at which point the compressor is controlled to stop running.

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