Control method of refrigerator with fresh-keeping chamber and refrigerator

Abstract

The invention provides a control method of a refrigerator with a fresh-keeping chamber and the refrigerator. A refrigerating chamber, a fresh-keeping chamber and a first refrigerating cavity are formed in the refrigerator, and the refrigerator is provided with a first evaporator, a first fan, a refrigerating air door and a fresh-keeping air door. The control method of the refrigerator comprises the steps of controlling the first evaporator to start working and controlling the first fan to start; whether the temperature of the refrigeration chamber is smaller than or equal to the first preset refrigeration temperature is judged; if yes, the refrigeration air door is controlled to be closed; judging whether the temperature of the fresh-keeping chamber is smaller than or equal to a first preset fresh-keeping temperature; if yes, the fresh-keeping air door is controlled to be closed; the first evaporator is controlled to stop working, and the first fan is controlled to stop; and whether the temperature of the fresh-keeping chamber is larger than a second preset fresh-keeping temperature or not is detected, and if yes, the first draught fan and the fresh-keeping air door are controlled to be opened. The residual cold of the first evaporator is used for refrigerating the fresh-keeping chamber, the starting frequency of the first evaporator is reduced, and frequent starting and stopping of the first evaporator are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration and freezing, and in particular to a control method for a refrigerator provided with a fresh-keeping compartment and the refrigerator. Background Art

[0002] As a common household appliance, refrigerators can store food at low temperatures, thereby extending the storage period of food. In order to improve the user experience, existing refrigerators are equipped with multiple different compartments to achieve different refrigeration and preservation effects. For example, some refrigerators have a refrigeration compartment and a fresh-keeping compartment. The storage temperature of the fresh-keeping compartment is different from that of the refrigeration compartment to achieve different storage effects.

[0003] However, because the refrigerated compartment and the fresh-keeping compartment use the same evaporator cavity, when the refrigerated compartment or the fresh-keeping compartment needs to be refrigerated, the evaporator will start to work for refrigeration, and the storage temperatures of the refrigerated compartment and the fresh-keeping compartment are different, resulting in frequent start and stop of the evaporator. Summary of the invention

[0004] An object of the present invention is to provide a control method for a refrigerator with a fresh-keeping compartment and a refrigerator capable of solving any of the above problems.

[0005] A further object of the present invention is to more fully utilize the residual cooling of the first evaporator.

[0006] Another further object of the present invention is to prevent the temperature in the fresh-keeping room from being too low.

[0007] In particular, the present invention provides a control method for a refrigerator provided with a fresh-keeping compartment, wherein the refrigerator is formed with a refrigerating compartment, a fresh-keeping compartment and a first refrigerating cavity, a first evaporator and a first fan are provided in the first refrigerating cavity, a refrigerating damper is provided between the refrigerating compartment and the first refrigerating cavity, and a fresh-keeping damper is provided between the fresh-keeping compartment and the first refrigerating cavity;

[0008] The control methods of the refrigerator include:

[0009] Control the first evaporator to start working and control the first fan to start;

[0010] Determining whether the temperature of the refrigeration compartment is less than or equal to a first preset refrigeration temperature;

[0011] If it is less than or equal to the first preset refrigeration temperature, the refrigeration damper is controlled to close;

[0012] Determine whether the temperature of the fresh-keeping compartment is less than or equal to a first preset fresh-keeping temperature;

[0013] If it is less than or equal to the first preset fresh-keeping temperature, the fresh-keeping air door is controlled to close;

[0014] Control the first evaporator to stop working and control the first fan to stop;

[0015] Detect whether the temperature of the fresh-keeping compartment is greater than a second preset fresh-keeping temperature. If so, control the first fan and the fresh-keeping damper to open.

[0016] Optionally, the step of controlling the first fan and the fresh-keeping damper to open includes:

[0017] Determine whether the first preset condition is met, and if so, control the fresh-keeping damper to close and control the refrigeration damper to open.

[0018] Optionally, the first preset condition includes:

[0019] The temperature of the first evaporator is greater than or equal to a first preset temperature value, or the time after the first fan and the fresh-keeping damper are controlled to be turned on reaches a first preset time length.

[0020] Optionally, the step of controlling the fresh-keeping air door to close and controlling the refrigeration air door to open includes:

[0021] Determine whether the second preset condition is met, and if so, control the refrigeration damper to close.

[0022] Optionally, the second preset condition includes:

[0023] The temperature of the first evaporator is greater than or equal to a second preset temperature value, or the time after the fresh-keeping air door is controlled to be closed and the refrigeration air door is controlled to be opened reaches a second preset time length.

[0024] Optionally, the fresh-keeping compartment is provided with a first temperature sensor and a second temperature sensor, the first temperature sensor is arranged at the front of the fresh-keeping compartment, and the second temperature sensor is arranged at the rear of the fresh-keeping compartment;

[0025] The step of determining whether the temperature of the fresh-keeping compartment is less than or equal to the first preset fresh-keeping temperature includes: detecting whether the detection value of the first temperature sensor or the second temperature sensor is less than or equal to the first preset fresh-keeping temperature; if so, determining that the temperature of the fresh-keeping compartment is less than or equal to the first preset fresh-keeping temperature.

[0026] Optionally, the step of detecting whether the temperature of the fresh-keeping compartment is greater than the second preset fresh-keeping temperature includes: detecting whether the detection values ​​of the first temperature sensor and the second temperature sensor are greater than the second preset fresh-keeping temperature; if so, determining that the temperature of the fresh-keeping compartment is greater than the second preset fresh-keeping temperature.

[0027] Optionally, before the step of controlling the first evaporator to start working and controlling the first fan to start, the steps include:

[0028] Determining whether the temperature of the refrigerated compartment is greater than a second preset refrigerated temperature;

[0029] If it is greater than the second preset refrigeration temperature, the steps of controlling the first evaporator to start working and controlling the first fan to turn on are executed, and the refrigeration damper is controlled to open.

[0030] Optionally, before the step of controlling the first evaporator to start working and controlling the first fan to start, the steps include:

[0031] Determining whether the temperature of the fresh-keeping compartment is greater than a third preset fresh-keeping temperature;

[0032] If the temperature is greater than the third preset fresh-keeping temperature, the steps of controlling the first evaporator to start working and controlling the first fan to start are executed, and the fresh-keeping damper is controlled to open.

[0033] Optionally, the refrigerator is further provided with a freezing compartment, a second refrigeration cavity and a solenoid valve, the freezing compartment is communicated with the second refrigeration cavity, a second evaporator and a second fan are provided in the second refrigeration cavity, and the solenoid valve is used to control the refrigerant to flow to the first evaporator or the second evaporator;

[0034] The step of controlling the first evaporator to stop working includes:

[0035] The solenoid valve is controlled so that the refrigerant flows to the second evaporator.

[0036] In another aspect of the present invention, a refrigerator is provided, comprising a refrigerating compartment, a fresh-keeping compartment and a first refrigerating cavity, wherein a first evaporator and a first fan are arranged in the first refrigerating cavity, a refrigerating damper is arranged between the refrigerating compartment and the first refrigerating cavity, and a fresh-keeping damper is arranged between the fresh-keeping compartment and the first refrigerating cavity; the refrigerator comprises a controller, which comprises a memory and a processor, wherein the memory stores a machine executable program, and when the machine executable program is executed by the processor, a control method of the refrigerator according to any one of the above items is implemented.

[0037] Optionally, the refrigerator includes a fresh-keeping container, which is arranged in the refrigerating compartment, and the fresh-keeping container includes:

[0038] A barrel body, the barrel body forming a fresh-keeping compartment; and

[0039] A drawer, which is pullable and arranged in the fresh-keeping compartment;

[0040] Among them, an air supply duct is formed on the top side wall of the barrel body, an air overflow duct is formed on the front end plate of the drawer, and a cold air transfer duct is formed between the bottom side of the drawer and the inner bottom wall of the barrel body, so as to guide the cold air from the opened fresh-keeping air door to the air overflow duct via the air supply duct, and guide the cold air from the air supply duct to the cold air transfer duct via the air overflow duct.

[0041] Optionally, the refrigerator comprises at least one magnetic field component, which generates a magnetic field in the fresh food compartment.

[0042] The control method of the refrigerator of the present invention controls the first evaporator to work to refrigerate the refrigerated compartment and / or the fresh-keeping compartment. After the temperature of the refrigerated compartment is less than or equal to the first preset refrigerated temperature and the temperature of the fresh-keeping compartment is less than or equal to the first preset fresh-keeping temperature, that is, after the refrigerated compartment and the fresh-keeping compartment reach the storage temperature, the first evaporator is controlled to stop working. Then, after detecting that the temperature of the fresh-keeping compartment is greater than the second preset fresh-keeping temperature, the first fan and the fresh-keeping damper are controlled to open. Because after the first evaporator has worked and stopped working, the temperature of the first evaporator is still relatively low. Therefore, when the temperature of the fresh-keeping compartment is greater than the second preset fresh-keeping temperature after the first evaporator has worked, the first fan and the fresh-keeping damper are turned on, and the fresh-keeping compartment is refrigerated by using the residual cold of the first evaporator, thereby reducing the number of times the first evaporator is started and avoiding frequent start and stop of the first evaporator.

[0043] Furthermore, in the control method of the refrigerator of the present invention, after the first fan and the fresh-keeping damper are controlled to open to utilize the residual cold of the first evaporator to refrigerate the fresh-keeping compartment, when the first preset condition is reached, the fresh-keeping damper is controlled to close and the refrigerating damper is controlled to open to refrigerate the refrigerating compartment, and when the second preset condition is reached, the refrigerating damper is controlled to close. Therefore, the residual cold of the first evaporator with a relatively lower temperature can be utilized to first refrigerate the fresh-keeping compartment with a lower storage temperature, and when the first preset condition is reached, the temperature of the first evaporator rises, and then the residual cold of the first evaporator with a relatively higher temperature is utilized to refrigerate the refrigerating compartment with a higher storage temperature, thereby making fuller use of the residual cold of the first evaporator and avoiding frequent start and stop of the first evaporator.

[0044] Furthermore, the control method of the refrigerator of the present invention can simultaneously detect the temperature of the front side and the rear side of the fresh-keeping compartment by arranging the first temperature sensor and the second temperature sensor in the fresh-keeping compartment. If it is detected that the detection value of the first temperature sensor or the second temperature sensor is less than or equal to the first preset fresh-keeping temperature, it is determined that the temperature of the fresh-keeping compartment is less than or equal to the first preset fresh-keeping temperature. In other words, as long as the detection value of one of the temperature sensors is less than or equal to the first preset fresh-keeping temperature, the refrigeration of the fresh-keeping compartment is stopped, thereby effectively avoiding the situation where the temperature of the fresh-keeping compartment is too low and the food freezes.

[0045] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0047] Figure 1 is a schematic diagram of a refrigerator according to an embodiment of the present invention;

[0048] Figure 2 Schematic diagram of a refrigerator according to an embodiment of the present invention after removing the door body

[0049] Figure 3 is a schematic diagram of a fresh-keeping container in a refrigerator according to an embodiment of the present invention;

[0050] Figure 4 is a schematic cross-sectional view of a fresh-keeping container in a refrigerator according to an embodiment of the present invention;

[0051] Figure 5 is a partial schematic diagram of a refrigerator according to an embodiment of the present invention;

[0052] Figure 6 is a schematic block diagram of a refrigerator according to an embodiment of the present invention;

[0053] Figure 7 is a schematic flow chart of a method for controlling a refrigerator according to an embodiment of the present invention;

[0054] Figure 8 is a schematic flow chart of a method for controlling a refrigerator according to another embodiment of the present invention;

[0055] Fig. 9 is a schematic flow chart of a refrigerator control method according to yet another embodiment of the present invention. DETAILED DESCRIPTION

[0056] It should be understood by those skilled in the art that the embodiments described below are only some embodiments of the present invention, rather than all embodiments of the present invention, and these embodiments are intended to explain the technical principles of the present invention, rather than to limit the protection scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should still fall within the protection scope of the present invention.

[0057] It should be noted that the logic and / or steps represented in the flowchart or described in other ways herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or equipment (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or equipment and execute instructions), or used in combination with these instruction execution systems, devices or equipment.

[0058] like Figures 1 to 5As shown, in one embodiment, the refrigerator 10 includes a refrigerating compartment 101, a fresh-keeping compartment 102, and a first refrigerating chamber 103 ( Figure 4 The first refrigeration chamber 103 is partially shown in the figure. A first evaporator (not shown in the figure) and a first fan 110 are arranged in the first refrigeration chamber 103, and a refrigeration damper (not shown in the figure) is arranged between the refrigeration chamber 101 and the first refrigeration chamber 103. A fresh-keeping damper (not shown in the figure) is arranged between the fresh-keeping chamber 102 and the first refrigeration chamber 103.

[0059] Reference Figures 1 to 5 As shown, specifically, the refrigerator 10 includes a box body 100 and a fresh-keeping container 200. The box body 100 forms a refrigerating compartment 101, and the fresh-keeping container 200 is arranged in the refrigerating compartment 101. The fresh-keeping container 200 includes a barrel body 210 and a drawer 220. The barrel body 210 forms a fresh-keeping compartment 102. The drawer 220 is arranged in the fresh-keeping compartment 102 in a retractable manner. The top side wall of the barrel body 210 is formed with an air supply duct 201, the front end plate 221 of the drawer 220 is formed with an air passage 2022, and a cold transmission duct 203 is formed between the bottom side of the drawer 220 and the inner bottom wall of the barrel body 210. The cold air from the opened fresh-keeping air door is guided to the air passage 2022 via the air supply duct 201, and the cold air from the air supply duct 201 is guided to the cold transmission duct 203 via the air passage 2022.

[0060] Reference Figures 1 to 5 As shown, the barrel 210 is box-shaped and has a forward opening (i.e., the opening of the fresh-keeping compartment 102). The drawer 220 is pullable and arranged in the fresh-keeping compartment 102 through the opening of the fresh-keeping compartment 102. When the drawer 220 is in a closed position, the front end plate 221 of the drawer 220 can close the opening of the fresh-keeping compartment 102, so that the food placed in the drawer 220 is closed in the fresh-keeping compartment 102.

[0061] The front end plate 221 of the drawer 220 includes a panel and an air hood. The panel is used to close the fresh-keeping compartment 102. The air hood is arranged on the inner side of the panel and protrudes toward the inside of the drawer 220. Cold air flows into the air passage 202 from the top surface of the air hood and flows out of the air passage 202 from the bottom surface of the air hood. An air inlet 204 and an air return port 205 are arranged at the rear end of the top side wall of the barrel body 210. The air inlet 204 is connected to the first refrigeration chamber 103 through the air inlet duct, and the air return port 205 is connected to the first refrigeration chamber 103 through the air return duct.

[0062] When the first fan 110 is turned on, after the refrigeration air door is opened, cold air can enter the refrigeration compartment 101 to cool the refrigeration compartment 101. When the fresh air door is opened, cold air can enter the air supply duct 201, flow along the air supply duct 201, the air flow duct 202 and the cold air transfer duct 203, so as to cool the fresh air compartment 102.

[0063] The refrigerator further includes a magnetic field assembly 300. The magnetic field assembly 300 is disposed on the top side wall of the barrel body 100 to generate a magnetic field in the fresh-keeping compartment. Specifically, the magnetic field assembly 300 may include a permanent magnetic sheet or an electromagnetic coil or a permanent magnetic sheet and an electromagnetic coil. The magnetic field assembly 300 plays a magnetic field auxiliary role in the storage of food, thereby improving the storage effect of food.

[0064] By providing the fresh-keeping container 200, the fresh-keeping compartment 102 is formed in the fresh-keeping container 220, and the drawer 220 is placed in the fresh-keeping compartment 102. Cold air flows through the air supply duct 201, the air flow duct 202, and the cold air transmission duct 203 to cool the fresh-keeping compartment 102. In addition, the cold air will not directly blow the food in the drawer 220 during cooling, so that the food temperature can be prevented from being too low compared to the room temperature and being frozen. With the auxiliary effect of the magnetic field, it is also helpful to keep the food at an appropriate sub-zero temperature without freezing.

[0065] Furthermore, the refrigerator is further provided with a freezing chamber 104, a second refrigeration chamber and a solenoid valve. The freezing chamber is communicated with the second refrigeration chamber, a second evaporator and a second fan are provided in the second refrigeration chamber, and the solenoid valve is used to control the refrigerant to flow to the first evaporator or the second evaporator.

[0066] The solenoid valve is a three-way solenoid valve, one end of which leads to the condenser, one end leads to the first evaporator, and one end leads to the second evaporator. The solenoid valve has two working states, one of which is to connect the condenser and the first evaporator to refrigerate the first refrigeration chamber 103. The other is to connect the condenser and the second evaporator to refrigerate the second refrigeration chamber.

[0067] It should be noted that Figure 1 and Figure 2 The cross-door refrigerator shown is only an example, and those skilled in the art can configure the specific number, function and layout of the storage compartments according to needs.

[0068] It should be noted that Figure 2 2 shows an example in which a fresh-keeping container 200 is arranged in the refrigerating compartment 101. In some other embodiments, a plurality of fresh-keeping containers may also be arranged in the refrigerating compartment.

[0069] It should be noted that, in some other embodiments, the fresh-keeping compartment may also be directly formed by the box body. In this case, the magnetic field assembly may be arranged inside the fresh-keeping compartment or outside the fresh-keeping compartment.

[0070] It should be noted that, in some other embodiments, the side wall of the barrel body is not provided with an interlayer, the air duct is formed between the barrel body and the inner wall of the box body, and the magnetic field component is also arranged on the outer side wall of the barrel body.

[0071] like Figure 6As shown, the refrigerator 10 also includes a controller 300, and the controller 300 includes a memory 310 and a processor 320. The memory 310 stores an executable program, and the processor 320 can execute the program in the memory 310, thereby executing the refrigerator control method in any of the following embodiments.

[0072] like Figure 7 As shown, in one embodiment, the control method of the refrigerator generally includes:

[0073] Step S701, control the first evaporator to start working and control the first fan to start. Specifically, control the solenoid valve to the first evaporator so that the refrigerant flows to the first evaporator. At the same time, control the first fan 110 to start so that the first fan 110 can deliver cold air to the refrigerated compartment 101 and / or the fresh-keeping compartment 102 to cool the refrigerated compartment 101 and / or the fresh-keeping compartment.

[0074] Step S702, determine whether the temperature of the refrigerating compartment is less than or equal to the first preset refrigerating temperature. If so, execute step S703. Specifically, a temperature sensor is provided in the refrigerating compartment 101, for detecting the temperature in the refrigerating compartment 101. That is, whether the detection value of the detection sensor is less than or equal to the first preset refrigerating temperature.

[0075] Step S703, controlling the refrigeration damper to close. Specifically, when the temperature of the refrigeration compartment 101 is less than or equal to the first preset refrigeration temperature, that is, the refrigeration compartment 101 reaches the required storage temperature, the refrigeration damper is controlled to close, that is, the refrigeration of the refrigeration compartment 101 is stopped.

[0076] Step S704, determine whether the temperature of the fresh-keeping compartment is less than or equal to the first preset fresh-keeping temperature, if so, execute step S705. Specifically, the fresh-keeping compartment 102 is provided with a first temperature sensor and a second temperature sensor, the first sensor is arranged at the front of the fresh-keeping compartment 102, and the second temperature sensor is arranged at the rear of the fresh-keeping compartment 102. Exemplarily, the first temperature sensor and the second temperature sensor can be arranged on the inner surface of the top side wall of the barrel body 210, one is located at the front end of the top side wall, and the other is located at the rear end of the top side wall.

[0077] The step of determining whether the temperature of the fresh-keeping compartment is less than or equal to the first preset fresh-keeping temperature includes: detecting whether the detection value of the first temperature sensor or the second temperature sensor is less than or equal to the first preset fresh-keeping temperature, and if so, determining that the temperature of the fresh-keeping compartment is less than or equal to the first preset fresh-keeping temperature. In other words, as long as the detection value of one of the first temperature sensor and the second temperature sensor is less than or equal to the first preset fresh-keeping temperature, it is determined that the temperature of the fresh-keeping compartment 102 is less than or equal to the first preset fresh-keeping temperature.

[0078] Step S705, control the fresh air door to close. Specifically, when the temperature of the fresh room 102 is less than or equal to the first preset fresh temperature, that is, the fresh room 102 reaches the required storage temperature, control the fresh air door to close, that is, stop refrigerating the fresh room 102.

[0079] It should be noted that there may be no timing requirement for the temperature detection of the fresh-keeping compartment and the refrigerated compartment, that is, after each reaches a preset temperature, each performs the closing operation of the damper.

[0080] Step S706, control the first evaporator to stop working and control the first fan to stop working. Specifically, after the refrigerated compartment 101 and the fresh-keeping compartment 102 have reached the required storage temperature, control the first evaporator to stop working, that is, control the solenoid valve to allow the refrigerant to flow to the second evaporator or stop the compressor of the refrigerator, thereby stopping the refrigeration work of the first evaporator. Control the first fan to stop, that is, stop delivering cold air to the refrigerated compartment and the fresh-keeping compartment.

[0081] Step S707, detect whether the temperature of the fresh-keeping compartment is greater than the second preset fresh-keeping temperature, if so, execute step S708. Specifically, detect whether the detection values ​​of the first temperature sensor and the second temperature sensor are greater than the second preset fresh-keeping temperature, if so, determine that the temperature of the fresh-keeping compartment is greater than the second preset fresh-keeping temperature. That is, only when it is detected that the temperature values ​​of the first temperature sensor and the second temperature sensor are both greater than the second preset fresh-keeping temperature, it is determined that the temperature in the fresh-keeping compartment 102 is greater than the second preset fresh-keeping temperature.

[0082] It should be noted that the first preset fresh-keeping temperature and the second preset fresh-keeping temperature may be the same, and may both be temperature values ​​directly set by the user. Alternatively, the first preset fresh-keeping temperature and the second preset fresh-keeping temperature may be different, and the first preset fresh-keeping temperature is less than the second preset fresh-keeping temperature. For example, the first preset fresh-keeping temperature is less than the user-set value, and the second preset fresh-keeping temperature is greater than the user-set value. In other words, the second preset fresh-keeping temperature is greater than or equal to the first preset fresh-keeping temperature.

[0083] Step S708, control the first fan and the fresh air door to open. Specifically, the first evaporator is not started, and only the first fan and the fresh air door are turned on to cool the fresh compartment 102. Specifically, the fresh compartment 102 is cooled by the residual cooling of the first evaporator after operation.

[0084] In the solution of this embodiment, the first evaporator is controlled to work to refrigerate the refrigerated compartment and / or the fresh-keeping compartment. After the temperature of the refrigerated compartment is less than or equal to the first preset refrigeration temperature and the temperature of the fresh-keeping compartment is less than or equal to the first preset fresh-keeping temperature, that is, after the refrigerated compartment and the fresh-keeping compartment reach the storage temperature, the first evaporator is controlled to stop working. Then, after detecting that the temperature of the fresh-keeping compartment is greater than the second preset fresh-keeping temperature, the first fan and the fresh-keeping damper are controlled to open. Because after the first evaporator has worked and stopped working, the temperature of the first evaporator is still relatively low. Therefore, when the temperature of the fresh-keeping compartment is greater than the second preset fresh-keeping temperature after the first evaporator has worked, the first fan and the fresh-keeping damper are turned on, and the fresh-keeping compartment is refrigerated using the residual cold of the first evaporator, thereby reducing the number of times the first evaporator is started and avoiding frequent start and stop of the first evaporator.

[0085] Furthermore, because the food can be kept in a refrigerated state without freezing at sub-zero temperatures under magnetic field preservation, it will also freeze if the temperature is too low. Therefore, by arranging the first temperature sensor and the second temperature sensor in the fresh-keeping compartment, the temperature of the front and rear sides of the fresh-keeping compartment can be detected at the same time. If it is detected that the detection value of the first temperature sensor or the second temperature sensor is less than or equal to the first preset fresh-keeping temperature, it is determined that the temperature of the fresh-keeping compartment is less than or equal to the first preset fresh-keeping temperature. In other words, as long as the detection value of one of the temperature sensors is less than or equal to the first preset fresh-keeping temperature, the refrigeration of the fresh-keeping compartment is stopped, thereby effectively avoiding the situation where the temperature of the fresh-keeping compartment is too low and the food freezes.

[0086] Furthermore, by arranging an air supply duct, an air passage duct and a cold transmission channel in the fresh-keeping room, the cold air can evenly cool the fresh-keeping room, thereby improving the uniformity of the temperature in the fresh-keeping room. In this way, even if only one of the first temperature sensor and the second temperature sensor detects a value less than or equal to the first preset fresh-keeping temperature, the refrigeration of the fresh-keeping room is stopped, and the detection value of the other temperature sensor will not differ too much, which is conducive to ensuring the fresh-keeping effect of the fresh-keeping room.

[0087] like Figure 8 As shown, in one embodiment, after the step of controlling the first fan and the fresh-keeping air door to open, the following steps are included: judging whether the first preset condition is met, and if so, controlling the fresh-keeping air door to close and controlling the refrigeration air door to open. After the step of controlling the fresh-keeping air door to close and controlling the refrigeration air door to open, the following steps are included: judging whether the second preset condition is met, and if so, controlling the refrigeration air door to close.

[0088] In this embodiment, the control method of the refrigerator generally includes:

[0089] Step S801, control the first fan and the fresh air door to open. Specifically, the first evaporator is not started, and only the first fan and the fresh air door are turned on to cool the fresh compartment 102. Specifically, the fresh compartment 102 is cooled by the residual cooling of the first evaporator after operation.

[0090] Step S802, determining whether the first preset condition is met, if so, executing step S803, if not, maintaining the current working mode, that is, continuing to keep the first fan and the fresh-keeping damper open.

[0091] Specifically, in one example, the first preset condition is that the temperature of the first evaporator is greater than or equal to the first preset temperature value. That is, when the temperature of the first evaporator is greater than or equal to the first preset temperature value, it is determined that the first preset condition is met. The first preset temperature value may be a fixed value, such as -2 degrees Celsius. It may also be a value determined according to the set value of the fresh-keeping compartment temperature.

[0092] Specifically, in one example, the first preset condition is that the time after the first fan and the fresh-keeping damper are turned on reaches the first preset time length. That is, when the time after the first fan and the fresh-keeping damper are turned on reaches the first preset time length, it is determined that the first preset condition is met. The first preset time length can be 15 minutes, 20 minutes, etc.

[0093] Step S803, control the fresh air door to close and control the refrigeration air door to open. Specifically, when the first preset condition is reached, control the fresh air door to close to stop refrigerating the fresh air compartment 102, and control the refrigeration air door to open to refrigerate the refrigeration compartment 101.

[0094] Step S804, determining whether the second preset condition is met, if so, executing step S805, if not, maintaining the current working mode, that is, keeping the refrigeration damper open.

[0095] Specifically, in one example, the second preset condition is that the temperature of the first evaporator is greater than or equal to the second preset temperature value. The second preset temperature value is greater than the first preset temperature value. That is, when the temperature of the first evaporator is greater than or equal to the second preset temperature value, it is determined that the second preset condition is met. The second preset temperature value may be a fixed value, such as 1 degree Celsius. It may also be a value determined according to the set value of the refrigerated compartment temperature.

[0096] Specifically, in one example, the second preset condition is that the time after the fresh-keeping air door is closed and the refrigerating air door is opened reaches the second preset time length. That is, when the time after the fresh-keeping air door is closed and the refrigerating air door is opened reaches the second preset time length, it is determined that the second preset condition is met. The second preset time length can be 10 minutes, 20 minutes, 30 minutes, etc.

[0097] Step S805, control the refrigeration damper to close. When the second preset condition is reached, control the refrigeration damper to close to stop refrigerating the refrigeration compartment 101. At this time, the residual cooling of the first evaporator is fully utilized, and if cooling is required later, the first evaporator is controlled to operate for cooling.

[0098] In the solution of this embodiment, after the first fan and the fresh-keeping damper are controlled to open to utilize the residual cold of the first evaporator to refrigerate the fresh-keeping compartment, when the first preset condition is reached, the fresh-keeping damper is controlled to close and the refrigeration damper is controlled to open to refrigerate the refrigeration compartment, and when the second preset condition is reached, the refrigeration damper is controlled to close. Therefore, the residual cold of the first evaporator with a relatively lower temperature can be used to first refrigerate the fresh-keeping compartment with a lower storage temperature. When the first preset condition is reached, the temperature of the first evaporator rises, and then the residual cold of the first evaporator with a relatively higher temperature is used to refrigerate the refrigeration compartment with a higher storage temperature, so that the residual cold of the first evaporator can be more fully used to avoid frequent start and stop of the first evaporator. When the fresh-keeping compartment is used to refrigerate food below zero in a magnetic field, the storage temperature of the fresh-keeping compartment will be lower than the storage temperature of the refrigeration compartment.

[0099] like Fig. 9 As shown, in one embodiment, the control method of the refrigerator generally includes:

[0100] Step S901, determining whether the temperature of the refrigerating compartment is greater than the second preset refrigerating temperature. If so, executing step S902, if not, executing step S903. Specifically, a temperature sensor is provided in the refrigerating compartment 101, for detecting the temperature in the refrigerating compartment 101. That is, detecting whether the detection value of the sensor is greater than the second preset refrigerating temperature.

[0101] It should be noted that the first preset refrigerated temperature and the second preset refrigerated temperature may be the same, and may both be temperature values ​​directly set by the user. Alternatively, the first preset refrigerated temperature and the second preset refrigerated temperature may be different, and the first preset refrigerated temperature is less than the second preset refrigerated temperature. For example, the first preset refrigerated temperature is less than the user-set value, and the second preset refrigerated temperature is greater than the user-set value. In other words, the second preset refrigerated temperature is greater than or equal to the first preset refrigerated temperature.

[0102] Step S902, control the first evaporator to start working, control the first fan to start, and control the refrigeration damper to open. Specifically, if the temperature of the refrigeration compartment 101 is greater than the second preset refrigeration temperature, it means that the refrigeration compartment 101 needs to be refrigerated. Then, control the first evaporator to start working, that is, control the solenoid valve to the first evaporator so that the refrigerant flows to the first evaporator. At the same time, control the first fan 110 to start, control the refrigeration damper to open, so that the first fan 110 can deliver cold air to the refrigeration compartment 101 through the opened refrigeration damper for refrigeration.

[0103] Step S903, control the refrigeration damper to be in a closed state. If the temperature of the refrigeration compartment 101 is not greater than the second preset refrigeration temperature, it means that the refrigeration compartment 101 does not need to be refrigerated. Then, control the refrigeration damper to be in a closed state so that cold air cannot enter the refrigeration compartment 101 for refrigeration.

[0104] Step S904, determine whether the temperature of the fresh-keeping compartment is greater than the third preset fresh-keeping temperature. If so, execute step S905, if not, execute step S906. Specifically, detect whether the detection values ​​of the first temperature sensor and the second temperature sensor are greater than the third preset fresh-keeping temperature. If so, determine that the temperature of the fresh-keeping compartment is greater than the third preset fresh-keeping temperature. Specifically, that is, the temperature values ​​of the first temperature sensor and the second temperature sensor are both greater than the third preset fresh-keeping temperature, and then determine that the temperature in the fresh-keeping compartment 102 is greater than the first preset fresh-keeping temperature.

[0105] It should be noted that the first preset fresh-keeping temperature, the second preset fresh-keeping temperature and the third preset fresh-keeping temperature may be the same, and may all be temperature values ​​directly set by the user. Alternatively, the first preset fresh-keeping temperature, the second preset fresh-keeping temperature and the third preset fresh-keeping temperature are different, and the third preset fresh-keeping temperature is greater than the second preset fresh-keeping temperature. In other words, the third preset fresh-keeping temperature is greater than or equal to the second preset fresh-keeping temperature, and the second preset fresh-keeping temperature is greater than or equal to the first preset fresh-keeping temperature.

[0106] Step S905, control the first evaporator to start working, control the first fan to start, and control the fresh-keeping damper to open. Specifically, if the temperature of the fresh-keeping compartment 102 is greater than the third preset fresh-keeping temperature, it means that the fresh-keeping compartment 102 needs to be refrigerated. Then, control the first evaporator to start working, that is, control the solenoid valve to the first evaporator so that the refrigerant flows to the first evaporator. At the same time, control the first fan 110 to start, and control the fresh-keeping damper to open. If the refrigerated compartment 101 was previously refrigerating, that is, the first evaporator was already working and the first fan 110 was also turned on, then the fresh-keeping damper can be opened.

[0107] Step S906, control the fresh air door to be in a closed state. If the temperature of the fresh food compartment 102 is not greater than the third preset refrigeration temperature, it means that the fresh food compartment 102 does not need to be refrigerated. Then, control the fresh air door to be in a closed state so that cold air cannot enter the fresh food compartment 102 for refrigeration.

[0108] Step S907, determining whether the temperature of the refrigerated compartment is less than or equal to the first preset refrigerated temperature. If so, executing step S908, if not, maintaining the refrigeration of the refrigerated compartment, that is, maintaining the first fan on and maintaining the refrigerated damper on. Specifically, that is, detecting whether the detection value of the sensor is less than or equal to the first preset refrigerated temperature.

[0109] Step S908, controlling the refrigeration damper to close. Specifically, when the temperature of the refrigeration compartment 101 is less than or equal to the first preset refrigeration temperature, that is, the refrigeration compartment 101 reaches the required storage temperature, the refrigeration damper is controlled to close, that is, the refrigeration of the refrigeration compartment 101 is stopped.

[0110] Step S909, determine whether the temperature of the fresh-keeping compartment is less than or equal to the first preset fresh-keeping temperature. If so, execute step S910. If not, maintain the refrigeration work of the fresh-keeping compartment, that is, keep the first fan turned on and keep the fresh-keeping damper turned on. Specifically, detect whether the detection value of the first temperature sensor or the second temperature sensor is less than or equal to the first preset fresh-keeping temperature. If so, determine that the temperature of the fresh-keeping compartment is less than or equal to the first preset fresh-keeping temperature. In other words, as long as the detection value of one of the first temperature sensor and the second temperature sensor is less than or equal to the first preset fresh-keeping temperature, it is determined that the temperature of the fresh-keeping compartment 102 is less than or equal to the first preset fresh-keeping temperature.

[0111] Step S910, control the fresh air door to close. Specifically, when the temperature of the fresh air room 102 is less than or equal to the first preset fresh air room temperature, that is, the fresh air room 102 reaches the required storage temperature, control the fresh air door to close, that is, stop refrigerating the fresh air room 102.

[0112] Step S911, control the first evaporator to stop working and control the first fan to stop working. Specifically, after the refrigerated compartment 101 and the fresh-keeping compartment 102 have reached the required storage temperature, control the first evaporator to stop working, that is, control the solenoid valve to allow the refrigerant to flow to the second evaporator or stop the compressor of the refrigerator, thereby stopping the refrigeration work of the first evaporator. Control the first fan to stop, that is, stop delivering cold air to the refrigerated compartment and the fresh-keeping compartment.

[0113] Step S912, detect whether the temperature of the fresh-keeping compartment is greater than the second preset fresh-keeping temperature, if so, execute step S913, if not, maintain the current working state. Specifically, detect whether the detection values ​​of the first temperature sensor and the second temperature sensor are greater than the second preset fresh-keeping temperature, if so, determine that the temperature of the fresh-keeping compartment is greater than the second preset fresh-keeping temperature. That is, only when it is detected that the temperature values ​​of the first temperature sensor and the second temperature sensor are both greater than the second preset fresh-keeping temperature, it is determined that the temperature in the fresh-keeping compartment 102 is greater than the second preset fresh-keeping temperature.

[0114] It should be noted that the first preset fresh-keeping temperature and the second preset fresh-keeping temperature may be the same, and may both be temperature values ​​directly set by the user. Alternatively, the first preset fresh-keeping temperature and the second preset fresh-keeping temperature may be different, and the first preset fresh-keeping temperature is less than the second preset fresh-keeping temperature. For example, the first preset fresh-keeping temperature is less than the user-set value, and the second preset fresh-keeping temperature is greater than the user-set value. In other words, the second preset fresh-keeping temperature is greater than or equal to the first preset fresh-keeping temperature.

[0115] Step S913, control the first fan and the fresh air door to open. Specifically, the first evaporator is not started, and only the first fan and the fresh air door are turned on to cool the fresh compartment 102. Specifically, the fresh compartment 102 is cooled by the residual cooling of the first evaporator after operation.

[0116] In the solution of this embodiment, the first evaporator is controlled to work to refrigerate the refrigerated compartment and / or the fresh-keeping compartment. After the temperature of the refrigerated compartment is less than or equal to the first preset refrigeration temperature and the temperature of the fresh-keeping compartment is less than or equal to the first preset fresh-keeping temperature, that is, after the refrigerated compartment and the fresh-keeping compartment reach the storage temperature, the first evaporator is controlled to stop working. Then, after detecting that the temperature of the fresh-keeping compartment is greater than the second preset fresh-keeping temperature, the first fan and the fresh-keeping damper are controlled to open. Because after the first evaporator has worked and stopped working, the temperature of the first evaporator is still relatively low. Therefore, when the temperature of the fresh-keeping compartment is greater than the second preset fresh-keeping temperature after the first evaporator has worked, the first fan and the fresh-keeping damper are turned on, and the fresh-keeping compartment is refrigerated using the residual cold of the first evaporator, so as to avoid frequent start and stop of the first evaporator.

[0117] Furthermore, by providing the first temperature sensor and the second temperature sensor in the fresh-keeping compartment, the temperature of the front side and the rear side of the fresh-keeping compartment can be detected at the same time. If it is detected that the detection value of the first temperature sensor or the second temperature sensor is less than or equal to the first preset fresh-keeping temperature, it is determined that the temperature of the fresh-keeping compartment is less than or equal to the first preset fresh-keeping temperature. In other words, as long as the detection value of one of the temperature sensors is less than or equal to the first preset fresh-keeping temperature, the refrigeration of the fresh-keeping compartment is stopped, thereby effectively preventing the situation in which the temperature of the fresh-keeping compartment is too low and the food freezes.

[0118] Furthermore, by arranging an air supply duct, an air passage duct and a cold transmission channel in the fresh-keeping room, the cold air can evenly cool the fresh-keeping room, thereby improving the uniformity of the temperature in the fresh-keeping room. In this way, even if only one of the first temperature sensor and the second temperature sensor detects a value less than or equal to the first preset fresh-keeping temperature, the refrigeration of the fresh-keeping room is stopped, and the detection value of the other temperature sensor will not differ too much, which is conducive to ensuring the fresh-keeping effect of the fresh-keeping room.

[0119] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A control method for a refrigerator with a fresh-keeping compartment, wherein: The refrigerator is formed with a refrigerating compartment, a fresh-keeping compartment and a first refrigerating cavity, a first evaporator and a first fan are arranged in the first refrigerating cavity, a refrigerating damper is arranged between the refrigerating compartment and the first refrigerating cavity, and a fresh-keeping damper is arranged between the fresh-keeping compartment and the first refrigerating cavity; The control methods of the refrigerator include: Controlling the first evaporator to start working and controlling the first fan to start; Determining whether the temperature of the refrigerating compartment is less than or equal to a first preset refrigerating temperature; If it is less than or equal to the first preset refrigeration temperature, controlling the refrigeration damper to close; Determining whether the temperature of the fresh-keeping compartment is less than or equal to a first preset fresh-keeping temperature; If the temperature is less than or equal to the first preset fresh-keeping temperature, the fresh-keeping damper is controlled to close; Controlling the first evaporator to stop working and controlling the first fan to stop; Detect whether the temperature of the fresh-keeping compartment is greater than a second preset fresh-keeping temperature, and if so, control the first fan and the fresh-keeping damper to open.

2. The control method of a refrigerator with a fresh-keeping compartment according to claim 1, wherein: The step of controlling the first fan and the fresh-keeping damper to open includes: Determine whether the first preset condition is met, and if so, control the fresh-keeping damper to close and control the refrigeration damper to open.

3. The control method of a refrigerator with a fresh-keeping compartment according to claim 2, wherein: The first preset condition includes: The temperature of the first evaporator is greater than or equal to a first preset temperature value, or the time after the first fan and the fresh-keeping damper are opened is controlled to reach a first preset time length.

4. The control method of a refrigerator with a fresh-keeping compartment according to claim 2, wherein: The step of controlling the fresh-keeping damper to close and the refrigeration damper to open comprises: Determine whether the second preset condition is met, and if so, control the refrigeration damper to close.

5. The control method of a refrigerator with a fresh-keeping compartment according to claim 4, wherein: The second preset condition includes: The temperature of the first evaporator is greater than or equal to a second preset temperature value, or the time after the fresh-keeping air door is controlled to be closed and the refrigeration air door is controlled to be opened reaches a second preset time length.

6. The control method of a refrigerator with a fresh-keeping compartment according to claim 1, wherein: The fresh-keeping compartment is provided with a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is arranged at the front of the fresh-keeping compartment, and the second temperature sensor is arranged at the rear of the fresh-keeping compartment; The step of judging whether the temperature of the fresh-keeping compartment is less than or equal to a first preset fresh-keeping temperature comprises: detecting whether the detection value of the first temperature sensor or the second temperature sensor is less than or equal to the first preset fresh-keeping temperature; if so, judging that the temperature of the fresh-keeping compartment is less than or equal to the first preset fresh-keeping temperature.

7. The control method of a refrigerator with a fresh-keeping compartment according to claim 6, wherein: The step of detecting whether the temperature of the fresh-keeping compartment is greater than the second preset fresh-keeping temperature includes: detecting whether the detection values ​​of the first temperature sensor and the second temperature sensor are greater than the second preset fresh-keeping temperature, and if so, determining that the temperature of the fresh-keeping compartment is greater than the second preset fresh-keeping temperature.

8. The control method of a refrigerator with a fresh-keeping compartment according to claim 1, wherein: The step of controlling the first evaporator to start working and controlling the first fan to start includes: Determining whether the temperature of the refrigerated compartment is greater than a second preset refrigerated temperature; If it is greater than the second preset refrigeration temperature, the steps of controlling the first evaporator to start working and controlling the first fan to turn on are performed, and the refrigeration damper is controlled to open.

9. The control method of a refrigerator with a fresh-keeping compartment according to claim 1, wherein: The step of controlling the first evaporator to start working and controlling the first fan to start includes: Determining whether the temperature of the fresh-keeping compartment is greater than a third preset fresh-keeping temperature; If it is greater than the third preset fresh-keeping temperature, the steps of controlling the first evaporator to start working and controlling the first fan to turn on are executed, and the fresh-keeping damper is controlled to open.

10. The control method of a refrigerator with a fresh-keeping compartment according to claim 1, wherein: The refrigerator is further provided with a freezing chamber, a second refrigeration chamber and a solenoid valve, the freezing chamber is communicated with the second refrigeration chamber, a second evaporator and a second fan are provided in the second refrigeration chamber, and the solenoid valve is used to control the refrigerant to flow to the first evaporator or the second evaporator; The step of controlling the first evaporator to stop working comprises: The solenoid valve is controlled so that the refrigerant flows to the second evaporator.

11. A refrigerator, wherein: The refrigerator is formed with a refrigerating compartment, a fresh-keeping compartment and a first refrigerating cavity, a first evaporator and a first fan are arranged in the first refrigerating cavity, a refrigerating damper is arranged between the refrigerating compartment and the first refrigerating cavity, and a fresh-keeping damper is arranged between the fresh-keeping compartment and the first refrigerating cavity; the refrigerator includes a controller, which includes a memory and a processor, wherein the memory stores a machine executable program, and when the machine executable program is executed by the processor, the control method of the refrigerator according to any one of claims 1 to 10 is implemented.

12. The refrigerator according to claim 11, wherein: The refrigerator comprises a fresh-keeping container, which is arranged in the refrigerating compartment, and the fresh-keeping container comprises: A barrel body, wherein the barrel body is formed with the fresh-keeping compartment; and A drawer, the drawer being drawable and arranged in the fresh-keeping compartment; Among them, an air supply duct is formed on the top side wall of the barrel body, an overwind duct is formed on the front end plate of the drawer, and a cooling air duct is formed between the bottom side of the drawer and the inner bottom wall of the barrel body, so as to guide the cold air from the opened fresh-keeping air door to the overwind duct via the air supply duct, and guide the cold air from the air supply duct to the cooling air duct via the overwind duct.

13. The refrigerator according to claim 11, wherein: The refrigerator includes at least one magnetic field component, which generates a magnetic field in the fresh food compartment.

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