Refrigerator and control method of refrigerator

Abstract

The invention provides a refrigerator and a control method of the refrigerator, the refrigerator comprises a refrigeration chamber and an air duct, the air duct comprises a first air inlet end, a second air inlet end and an air outlet end, and the air outlet end communicates with the refrigeration chamber. The refrigeration refrigerator is used for generating refrigeration gas and is communicated with the first air inlet end, and the refrigeration gas is blown into the refrigeration chamber through the air duct. The humidifier is used for generating humidified gas and is communicated with the second air inlet end, and the humidified gas is blown into the refrigerating chamber through the air duct. According to the refrigerator, the refrigeration chamber can be humidified, and the space structure is saved.

Description

Technical Field

[0001] The present application relates to the field of household appliances, and in particular to a refrigerator and a method for controlling the refrigerator. Background Art

[0002] Current refrigerators have increasingly higher requirements for the preservation of high-end ingredients, and some ingredients such as fruits and vegetables need to be stored in high humidity.

[0003] Existing refrigerator humidity control solutions mostly use ultrasonic atomization and the like to perform targeted humidification on a certain drawer. Summary of the invention

[0004] The present application provides a refrigerator and a control method of the refrigerator, which realizes humidification of a refrigerating compartment and a space-saving structure.

[0005] Specifically, the present application is implemented through the following technical solutions:

[0006] One aspect of the present application provides a refrigerator, comprising:

[0007] Cold storage room;

[0008] An air duct, comprising a first air inlet end, a second air inlet end and an air outlet end, wherein the air outlet end is connected to the refrigerating compartment;

[0009] A refrigeration refrigerator for generating refrigerated gas, connected to the first air inlet end, and the refrigerated gas is blown into the refrigerated compartment through the air duct;

[0010] A humidifier for generating humidified gas is connected to the second air inlet end, and the humidified gas is blown into the refrigerated compartment through the air duct.

[0011] Optionally, the refrigerating compartment is provided with at least two first air inlets, the air outlet end includes at least two first air outlets corresponding to the number of the first air inlets, and the first air outlets are connected to the first air inlets in a one-to-one correspondence.

[0012] Optionally, at least two of the first air inlets are symmetrically arranged on two side walls of the refrigerating compartment.

[0013] Optionally, the humidifier includes a humidifying water box for generating humidified gas and a humidifying fan for blowing air into the humidifying water box, and the humidifying water box is provided with an air outlet, and the air outlet is connected to the second air inlet end.

[0014] Optionally, it also includes a drainage pipe connected between the refrigeration refrigerator and the humidification water box, and the drainage pipe is used to introduce the defrost water generated by the refrigeration refrigerator into the humidification water box.

[0015] Optionally, the humidifying water box is further provided with an air return port, the air return port is provided with a filter screen and is connected to the refrigerating compartment, and the air return port is used to return the humidified gas flowing through the refrigerating compartment to the humidifying water box.

[0016] Optionally, it further includes a drawer portion, the drawer portion is isolated from the refrigerating compartment, and the air duct further includes a second air outlet end, and the second air outlet end is connected to the drawer portion.

[0017] Optionally, it also includes a damper, which is openably and closably arranged between the second air outlet and the drawer portion; when the damper is opened, the air duct is connected to the drawer portion; when the damper is closed, the air duct and the drawer portion are blocked.

[0018] Optionally, it further includes a controller and a first temperature sensor and a first humidity sensor electrically connected to the controller, wherein the first temperature sensor is used to detect the temperature in the drawer and output a first temperature signal to the controller; the first humidity sensor is used to detect the humidity in the drawer and output the first humidity signal to the controller;

[0019] The controller is also electrically connected to the damper, the humidifier and the refrigerator, and is used to control the damper, the humidifier and the refrigerator according to the first temperature signal and the first humidity sensor.

[0020] Optionally, the refrigerator further comprises a controller and a second temperature sensor and a second humidity sensor electrically connected to the controller;

[0021] The second temperature sensor is used to detect the temperature inside the refrigerating compartment and output a second temperature signal to the controller;

[0022] The second humidity sensor is used to detect the humidity in the refrigerating compartment and output a second humidity signal to the controller;

[0023] The controller is also electrically connected to the humidifier and the refrigerator, and controls the humidifier and the refrigerator according to the second temperature signal and the second humidity signal.

[0024] Optionally, the humidifier further comprises a sterilization module for introducing sterilization gas into the air duct; and / or

[0025] The refrigerator further comprises an external pipe, one end of which is connected to the humidifier, and the other end of which is used to be connected to the outside of the refrigerator.

[0026] Another aspect of the present application provides a method for controlling a refrigerator, the refrigerator comprising:

[0027] Cold storage room;

[0028] The air duct comprises a first air inlet end, a second air inlet end and a first air outlet end, wherein the first air outlet end is connected to the refrigerating compartment;

[0029] A refrigeration refrigerator for generating refrigerated gas, connected to the first air inlet end, and the refrigerated gas is blown into the refrigerated compartment through the air duct;

[0030] A humidifier for generating humidified gas, which is connected to the second air inlet end, and the humidified gas is blown into the refrigerated compartment through the air duct;

[0031] The control method comprises:

[0032] Confirm the current temperature and humidity in the cold storage room, and determine whether the current temperature and humidity reach the preset temperature and humidity;

[0033] According to the judgment result, the refrigerator is controlled to work so that the temperature inside the cold storage room reaches the preset temperature, and the humidifier is controlled to work so that the humidity inside the cold storage room reaches the preset humidity; wherein, the refrigerator and the humidifier are selectively turned on, when the refrigerator is turned on, the humidifier is turned off; when the humidifier is turned on, the refrigerator is turned off.

[0034] Optionally, according to the judgment result, controlling the refrigerator to operate so that the temperature in the refrigerated room reaches a preset temperature, and controlling the humidifier to operate so that the humidity in the refrigerated room reaches a preset humidity, comprises:

[0035] When the refrigerator is in the off state and the current humidity is less than the preset humidity, the humidifier is controlled to work until the humidity in the refrigerator reaches the preset humidity;

[0036] When the refrigerator is in operation and the current humidity is lower than a preset humidity, the refrigerator is first controlled to operate until the temperature in the refrigerator reaches the preset temperature, and then the humidifier is controlled to operate until the humidity in the refrigerator reaches the preset humidity; or

[0037] When the refrigerator is in operation and the current humidity is lower than a preset humidity, the refrigerator and the humidifier are controlled to operate alternately, so that the temperature and humidity in the refrigerated room alternately reach the preset temperature and the preset humidity.

[0038] Optionally, the alternately controlling the operation of the refrigerator and the humidifier includes: repeating the alternate operation at least twice;

[0039] The alternating operation once comprises:

[0040] Controlling the refrigeration and refrigerator to turn on so that the temperature in the refrigeration compartment reaches an intermediate temperature, and controlling the refrigeration and refrigerator to turn off; the intermediate temperature is greater than the preset temperature;

[0041] Controlling the humidifier to turn on so that the humidity in the cold storage room reaches an intermediate humidity, and controlling the humidifier to turn off; the intermediate humidity is less than the preset humidity;

[0042] The intermediate temperature gradually approaches the preset temperature as the number of executions of the alternating operation increases, and the intermediate humidity gradually approaches the preset humidity as the number of executions of the alternating operation increases.

[0043] Optionally, the preset humidity includes turning on humidity and turning off humidity, and controlling the humidifier to operate so that the humidity in the cold storage room reaches the preset humidity includes:

[0044] When the current humidity is lower than the start humidity, the humidifier is controlled to start;

[0045] When the current humidity reaches the shut-off humidity, controlling the humidifier to shut down;

[0046] Wherein, the closing humidity is greater than the opening humidity.

[0047] Optionally, when the current humidity is less than the start-up humidity, controlling the humidifier to start up includes:

[0048] When the current humidity is less than the opening humidity and the difference is greater than the preset difference, the humidifier is controlled to operate at the first operating frequency;

[0049] When the current humidity is less than the opening humidity and the difference is less than the preset difference, the humidifier is controlled to operate at the second operating frequency;

[0050] The first operating frequency is greater than the second operating frequency.

[0051] Optionally, the humidifier includes a humidifying water box and a fan, and the gas generated by the fan passes through the humidifying water box to generate humidified gas;

[0052] When the refrigerator is in operation and the current humidity is lower than the preset humidity, the refrigerator is controlled to operate until the temperature in the cold storage room reaches the preset temperature, including:

[0053] The speed of the fan of the refrigerator is controlled to be increased by 10%-30% compared with the previous working state until the temperature in the refrigerated room reaches the preset temperature.

[0054] Optionally, the refrigerator further comprises a drawer portion and an air door, the drawer portion is isolated from the refrigerating compartment, the air duct further comprises a second air outlet end, the second air outlet end is connected to the drawer portion; the air door is openably and closably arranged between the second air outlet end and the drawer portion; when the air door is opened, the air duct is connected to the drawer portion; when the air door is closed, the air duct and the drawer portion are blocked;

[0055] The control method further comprises:

[0056] According to the setting requirements, the opening time of the damper is controlled so that the temperature and humidity in the drawer part are different from the temperature and humidity in the refrigerating compartment.

[0057] The present application provides a refrigerator and a refrigerator control method. The humidifier of the present application is connected to the cold storage compartment through an air duct, which can realize the humidity control of the cold storage compartment, ensure that the food placed in the cold storage compartment is kept at an appropriate humidity, and provide a suitable environment for food preservation, long-term storage, etc. Further, the humidifier and the cold storage refrigerator share an air duct, which can save space structure. And the humidifier is blown into the cold storage compartment through the air duct, and the distribution of the air duct outlet end can be used to make the humidified gas blow to any position in the cold storage compartment, thereby humidifying the cold storage compartment more thoroughly. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 is a schematic diagram of a refrigerator air duct shown in an exemplary embodiment of the present application;

[0059] Figure 2 is a side view of a refrigerator shown in an exemplary embodiment of the present application;

[0060] Figure 3 is a front view of a refrigerator shown in an exemplary embodiment of the present application;

[0061] Figure 4 is an enlarged view of a humidifier in a refrigerator shown in an exemplary embodiment of the present application;

[0062] Figure 5 is a schematic diagram of a return air end of a humidifier shown in an exemplary embodiment of the present application;

[0063] Figure 6 It is a flow chart of a refrigerator control method shown in an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0064] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application.

[0065] The terms used in this application are only for the purpose of describing specific embodiments, and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one" or "one" do not indicate quantity restrictions, but indicate that there is at least one, and will be separately described if only "one" is referred to. "Multiple" or "several" means two or more. Unless otherwise specified, similar words such as "front", "rear", "lower" and / or "upper", "top", "bottom" are only for the convenience of explanation, and are not limited to one position or one spatial orientation. Similar words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" cover the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. The words "connected" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0066] This application provides a refrigerator, please refer to Figure 1 and Figure 2 The refrigerator includes a cold storage compartment 100, an air duct 200, a cold storage refrigerator 300 and a humidifier 400. The cold storage compartment 100 is the space of the cold storage compartment of the refrigerator except for the drawer part 500. The air duct 200 includes a first air inlet end 211, a second air inlet end 212 and an air outlet end, and the air outlet end is connected to the cold storage compartment 100, that is, the gas in the air duct 200 will enter the cold storage compartment 100 through the air outlet end. The cold storage refrigerator 300 is used to generate cold storage gas, and the cold storage refrigerator 300 is connected to the first air inlet end 211. The cold storage gas is introduced into the air duct 200 through the first air inlet end 211, and then introduced into the cold storage compartment 100 from the air outlet end. The cold storage gas is blown into the cold storage compartment 100 through the air duct 200 to refrigerate the cold storage compartment 100.

[0067] The humidifier 400 is used to generate humidified gas, and is connected to the second air inlet end 212. The humidified gas is blown into the refrigerating compartment 100 through the air duct 200. Similarly to the above, the humidified gas enters the refrigerating compartment 100 through the air duct 200 to humidify the refrigerating compartment 100. In this way, the humidity in the refrigerating compartment 100 is controlled, ensuring that the food placed in the refrigerating compartment 100 is kept at a suitable humidity, and providing a suitable environment for food preservation and long-term storage.

[0068] Moreover, the refrigerator 300 and the humidifier 400 share the same air duct 200. A space-saving structure is provided. Furthermore, the humidifier 400 is blown into the refrigerated compartment 100 through the air duct 200. The distribution of the outlet end of the air duct 200 can be utilized to make the humidified gas blown to any position of the refrigerated compartment 100, thereby humidifying the refrigerated compartment 100 more thoroughly.

[0069] In one embodiment, please combine Figure 1 and Figure 3 , the refrigerated compartment 100 is provided with at least two first air inlets 110 for taking air into the refrigerated compartment 100. The air outlet end includes at least two first air outlets 221 corresponding to the number of the first air inlets 110, and the first air outlets 221 are used to discharge air from the air duct 200. The first air outlets 221 are connected to the first air inlets 110 in a one-to-one correspondence. The gas discharged from the first air outlets 221 of the air duct 200 enters the refrigerated compartment 100 from the first air inlet 110. The first air inlet 110 for taking air into the refrigerated compartment 100 includes at least two, that is, the humidified gas can enter the refrigerated compartment 100 through more than two first air inlets 110, so that the humidified gas can evenly humidify the refrigerated compartment 100 at more than two locations where the first air inlet 110 is located.

[0070] In one embodiment, reference Figure 3 At least two first air inlets 110 are symmetrically arranged on the side walls of the refrigerating compartment 100. There may be two, four, six, etc. first air inlets 110 symmetrically distributed on the side walls of the refrigerating compartment 100. This allows the humidified gas to be blown into the refrigerating compartment 100 more evenly, ensuring the uniformity of humidity in the refrigerating compartment 100.

[0071] In one embodiment, please refer to Figure 4The humidifier 400 includes a humidifying water box 410 for generating humidified gas and a humidifying fan 420 for blowing air to the humidifying water box 410. The humidifying water box 410 is provided with an air outlet, and the air outlet is connected to the second air inlet end 212. The humidified gas is blown out from the air outlet and enters the air duct through the second air inlet end 212. The gas generated by the humidifying fan 420 passes through the humidifying water box 410, carries the water in the humidifying water box 410, forms humidified gas, and then blows out from the air outlet. The humidifier of this embodiment has a simple structure and can efficiently form humidified gas.

[0072] In one embodiment, the refrigerator further includes a drainage pipe connected between the refrigerator 300 and the humidification water box 410. The drainage pipe is used to introduce the defrost water generated by the refrigerator 300 into the humidification water box 410. During the refrigeration process, the refrigerator 300 will form defrost water on its surface, and the defrost water flows into the drainage pipe, and under the drainage of the drainage pipe, flows into the humidification water box 410. Provide a water source for the humidifier 400 to form humidified gas. Specifically, the humidification water box 410 can be set at a position lower than the refrigerator 300, so that the defrost water can flow into the humidification water box along the drainage pipe under the action of gravity. The drainage pipe is close to one end of the refrigerator 300, and can include a water receiving portion arranged in a V shape, located below the refrigerator 300, and can collect the melted defrost water on the refrigerator 300 in the water receiving portion and then drain it through the drainage pipe. In this way, the defrost water can be recycled, and the user does not need to add water to the humidifier 400, and does not need to remove the defrost water generated by the refrigerator 300. Specifically, the humidification water box 410 includes a moisture absorption module for receiving the defrost water.

[0073] In one embodiment, please refer to Figure 4 and Figure 5 The humidification water box 410 is also provided with a return air port 411, which is provided with a filter screen 401 and is connected to the refrigerated compartment 100. The return air port 411 is used to return the humidified gas flowing through the refrigerated compartment 100 to the humidification water box 410. That is, the humidified gas flows from the air duct 200 into the refrigerated compartment 100, is humidified in the refrigerated compartment 100, and then flows back into the humidification water box 410 through the return air port 411, and then passes through the humidification water box 410 to form humidified gas. Figure 2 As shown by the arrows, the whole process realizes gas circulation. When the humidified gas passes through the refrigerated compartment 100, it may carry impurities in the refrigerated compartment 100. Adding a filter 401 at the return air port 411 can filter the impurities carried in the humidified gas flowing through the refrigerated compartment 100 to prevent the impurities from damaging the humidifier 400.

[0074] In one embodiment, please refer to Figure 2The refrigerator of the present application further includes a drawer 500, which is isolated from the refrigerating compartment 100, and the air duct 200 further includes a second air outlet 222, which is connected to the drawer 500. The humidified gas can be introduced into the drawer 500, and the present embodiment can not only humidify the refrigerating compartment 100, but also humidify the drawer 500 at the same time, thereby completing the humidification of the entire refrigerator refrigerating compartment.

[0075] In one embodiment, please refer to Figure 1 and Figure 3 The refrigerator further includes a damper 120, which is openably and closably disposed between the second air outlet end 222 and the drawer portion 500. When the damper 120 is opened, the air duct 200 is connected to the drawer portion 500, and the humidified gas is blown into the drawer portion 500. When the damper is closed, the air duct 200 and the drawer portion 500 are blocked, and the humidified gas can be prevented from flowing into the drawer portion 500. In this way, the humidification of the refrigerating compartment 100 and the drawer portion 500 can be controlled separately, and by controlling the opening and closing of the damper 120, the humidity of the refrigerating compartment 100 and the drawer portion 500 can be separately and independently controlled. It should be noted that the present embodiment does not limit the number and position of the dampers.

[0076] In one embodiment, the refrigerator further comprises a controller and a first temperature sensor and a first humidity sensor electrically connected to the controller. The first temperature sensor is used to detect the temperature in the drawer 500 and output a first temperature signal to the controller. The first humidity sensor is used to detect the humidity in the drawer 500 and output a first humidity signal to the controller. The controller is also electrically connected to the damper 120, the humidifier 400 and the refrigerator 300, and the controller is used to control the damper 120, the humidifier 400 and the refrigerator 300 according to the first temperature signal and the first humidity sensor.

[0077] First, during the operation of the refrigerator 300, the controller can determine the temperature in the drawer 500 according to the first temperature signal, and then control the opening and closing of the damper 120 according to the temperature to control the refrigerated gas entering the drawer 500, and can detect and control the temperature inside the drawer 500 in real time. Secondly, during the operation of the humidifier 400, the controller can determine the humidity in the drawer 500 according to the first humidity signal, and then control the opening time of the damper 120 to control the humidity in the drawer 500. In this way, a humidity environment different from that in the refrigerated compartment 100 can be created.

[0078] In one embodiment, the refrigerator further includes a controller and a second temperature sensor and a second humidity sensor electrically connected to the controller. The second temperature sensor is used to detect the temperature in the cold storage compartment 100 and output a second temperature signal to the controller. The second humidity sensor is used to detect the humidity in the cold storage compartment 100 and output a second humidity signal to the controller. The controller is also electrically connected to the humidifier 400 and the cold storage refrigerator 300, and controls the humidifier 400 and the cold storage refrigerator 300 according to the second temperature signal and the second humidity signal, including controlling the opening and closing of the humidifier 400 and the cold storage refrigerator 300 and the power, etc. In this embodiment, the humidifier 400 and the cold storage refrigerator 300 can be controlled according to the humidity and temperature in the cold storage compartment 100, and the humidification process and the cooling process can be controlled according to user needs.

[0079] In one embodiment, the humidifier 400 further includes a sterilization module for introducing sterilization gas, such as ozone, into the air duct 200 to achieve a sterilization function for the refrigerated compartment 100. The refrigerator may further include an external pipe, one end of which is connected to the humidifier 400, specifically, it may be connected to the humidification water box 410 of the humidifier 400, and the other end is connected to the outside of the refrigerator. The user can replenish water to the humidifier 400 from the outside of the refrigerator through the external pipe. Alternatively, the humidifier 400 can be disassembled and replenished with water.

[0080] The present application also provides a refrigerator control method, which can be used to control the refrigerator described in the above embodiments and implementations. The refrigerator includes the above refrigerator structure, which can humidify the refrigerating compartment 100. Please refer to Figure 6 , control methods include:

[0081] S100: confirming the current temperature and humidity in the cold storage room, and determining whether the current temperature and humidity reach a preset temperature and a preset humidity.

[0082] S200. Based on the judgment result, the refrigerator is controlled to operate so that the temperature in the cold storage room reaches a preset temperature, and the humidifier is controlled to operate so that the humidity in the cold storage room reaches a preset humidity; wherein, the refrigerator and the humidifier are selectively turned on, when the refrigerator is turned on, the humidifier is turned off; when the humidifier is turned on, the refrigerator is turned off.

[0083] When the indoor temperature of the cold storage room does not reach the preset temperature, the cold storage refrigerator works to cool. If the current humidity does not reach the preset humidity at this time, the humidifier needs to be turned on. However, the cold storage refrigerator and the humidifier cannot be turned on at the same time according to the principle of selective opening. You can wait until the cold storage refrigerator works so that the current temperature reaches the preset temperature and then turn off the cold storage humidifier, and then turn on the humidifier. During the operation of the humidifier, the humidity sensor can be used to detect the current humidity of the cold storage room and compare it with the preset humidity. When the humidifier works so that the current humidity reaches the preset humidity, the humidifier can be turned off. The humidification process is completed, and the humidity is controlled to reach the preset humidity. The preset temperature and humidity here can be set according to user needs to control the refrigeration temperature and humidity in the refrigerator cold storage room. The preset temperature and humidity can be a preset value or a preset range.

[0084] Since the refrigerator and humidifier share the same air duct, if the refrigerated gas and the humidified gas enter the cold storage room through the air duct at the same time, the refrigerated gas will reduce the humidity of the humidified gas. Therefore, it is necessary to choose to turn on either the refrigerator or the humidifier. In addition, during the refrigeration process, when the refrigerated gas flows through the cold storage room, it will also take away the moisture in the cold storage room, reducing the humidity in the cold storage room. Therefore, starting the refrigerator at the same time as turning on the humidifier will reduce the humidification effect. The solution of this embodiment can avoid mutual interference between the humidified gas and the refrigerated gas, and control the humidity and temperature in the cold storage room to reach a predetermined value. This embodiment can also be that the controller compares the current humidity with the predetermined humidity after receiving the user's instruction to turn on the humidifier.

[0085] In one embodiment, in step S200, according to the judgment result, controlling the refrigerator to operate so that the temperature in the refrigerating room reaches a preset temperature, and controlling the humidifier to operate so that the humidity in the refrigerating room reaches a preset humidity, includes:

[0086] S210: When the refrigerator is in the off state and the current humidity is less than the preset humidity, the humidifier is controlled to work until the humidity in the refrigerator reaches the preset humidity. That is, when the refrigerator is in the off state, the humidifier can be turned on at any time according to the humidity to humidify to the preset humidity.

[0087] S220: When the refrigerator is in operation and the current humidity is lower than a preset humidity, the refrigerator is first controlled to operate until the temperature in the refrigerator reaches the preset temperature, and then the humidifier is controlled to operate until the humidity in the refrigerator reaches the preset humidity.

[0088] For example, when the refrigerator is in working state, the temperature sensor is used to detect the current temperature in the refrigerator compartment and compare the current temperature with the preset temperature. If the current temperature does not reach the preset temperature, and the controller receives a signal that the current humidity is less than the preset humidity, or the user needs to turn on the humidifier. According to the principle that only one of the refrigerator and the humidifier can be turned on, the refrigerator can be controlled to continue working until the current temperature reaches the preset temperature, and then the refrigerator is turned off and the humidifier is turned on to humidify the refrigerator compartment.

[0089] S230: When the refrigerator is in operation and the current humidity is lower than a preset humidity, the refrigerator and the humidifier are controlled to operate alternately, so that the temperature and humidity in the cold storage room alternately reach the preset temperature and the preset humidity.

[0090] That is, when the humidifier needs to be turned on for humidification, but the refrigerator is in working state, the refrigerator can be operated for a period of time, and then the humidifier can be turned on for a period of time, and then the refrigerator is turned on for a period of time, and then the humidifier is turned on again to work, and the refrigeration and humidification process is performed alternately in this way, and finally the preset temperature and preset humidity are reached. Since the continuous blowing of refrigeration air during the refrigeration process will reduce the indoor humidity of the refrigerator, the indoor humidity of the refrigerator will produce a large fluctuation, which is not conducive to the moisture retention of food. The present application alternately performs the refrigeration and humidification process, reduces the continuous refrigeration time, reduces the fluctuation of the indoor humidity of the refrigerator due to the blowing of refrigeration gas, and humidifies after refrigeration, which also supplements the fluctuation of the indoor humidity of the refrigerator. Therefore, the present embodiment can reduce the humidity fluctuation in the refrigerator and provide a stable humidity environment for the moisture retention of food.

[0091] In one embodiment, in step S230, the refrigerator and the humidifier are alternately controlled to operate, including: repeating the alternating operation at least twice.

[0092] The alternating operation once comprises:

[0093] Control the refrigeration and cooling device to turn on so that the temperature in the refrigeration room reaches an intermediate temperature, and control the refrigeration and cooling device to turn off; the intermediate temperature is greater than the preset temperature;

[0094] Controlling the humidifier to turn on so that the humidity in the cold storage room reaches an intermediate humidity, and controlling the humidifier to turn off; the intermediate humidity is less than the preset humidity;

[0095] The intermediate temperature gradually approaches the preset temperature as the number of executions of the alternating operation increases, and the intermediate humidity gradually approaches the preset humidity as the number of executions of the alternating operation increases.

[0096] For example, the preset temperature of the refrigerator is 3 degrees, and the preset humidity is 85%. During the first alternating operation, the refrigerator is controlled to turn on so that the temperature in the refrigerator room drops to an intermediate temperature of 4 degrees, and then the refrigerator is turned off. Then the humidifier is controlled to turn on so that the humidity in the refrigerator room reaches an intermediate humidity of 70%, and then the humidifier is turned off. After that, the refrigerator is turned on again, and after cooling to 4.5 degrees, the humidifier is turned on, and after humidifying to 75%, the humidifier is turned off. This is repeated alternately. As the number of alternating executions increases, the intermediate temperature gradually approaches the preset temperature, and the intermediate humidity gradually approaches the preset humidity. In this way, with multiple alternating operations, the humidity fluctuation in the refrigerator can be reduced.

[0097] In another embodiment, the refrigerator includes a start-up temperature and a shutdown temperature. The start-up temperature is greater than a predetermined temperature, and the shutdown temperature is less than the predetermined temperature. For example, if the predetermined temperature is 3 degrees, the start-up temperature may be the predetermined temperature plus 1.5 degrees, and the shutdown temperature may be the predetermined temperature minus 1.5 degrees. That is, the refrigerator is turned on at 4.5 degrees, and turned off at 1.5 degrees. The intermediate temperature may be the predetermined temperature plus 0.5 degrees, that is, when the current temperature reaches 3.5 degrees, the humidifier is switched on for humidification.

[0098] In one embodiment, the preset humidity includes turning on the humidity and turning off the humidity. In step S200, controlling the humidifier to work so that the humidity in the refrigerated room reaches the preset humidity includes:

[0099] When the current humidity is lower than the start humidity, the humidifier is controlled to start;

[0100] When the current humidity reaches the shutdown humidity, the humidifier is controlled to shut down.

[0101] The opening humidity can be 60%-70%, and the closing humidity can be 85%-90%. For example, the opening humidity is 60%, and the closing humidity is 85%. When the current temperature is less than the opening humidity of 60%, the controller can control the humidifier to work until the current humidity is greater than or equal to the closing humidity of 85%, and the controller controls the humidifier to turn off. In this way, the indoor humidity of the cold storage room can be controlled between the opening humidity and the closing humidity, such as 60%-85%, 65%-83%, 70%-90%, etc. Since the current humidity will fluctuate, and most of the storage requirements of food ingredients are also within a specific humidity range, this embodiment controls the humidifier to turn on and off within a range, which can reduce the frequent switching of the humidifier and adapt to a wider range of food storage.

[0102] In one embodiment, when the current humidity is less than the start-up humidity, controlling the humidifier to start up includes:

[0103] When the current humidity is less than the opening humidity and the difference is greater than the preset difference, the humidifier is controlled to operate at the first operating frequency;

[0104] When the current humidity is less than the opening humidity and the difference is less than the preset difference, the humidifier is controlled to operate at the second operating frequency;

[0105] The first operating frequency is greater than the second operating frequency.

[0106] For example, the opening humidity is 60%, and the preset difference between the current humidity and the opening humidity is 15%. If the difference between the current humidity and the opening humidity is greater than 15%, that is, the current humidity is less than 45%, the humidifier operates at a larger working frequency, that is, the first working frequency, which can be the fan speed of the humidifier is 1800rpm, which can quickly increase the current humidity of the refrigerated compartment. If the difference between the current humidity and the opening humidity is less than 15%, that is, the current humidity is between 46% and 60%, the humidifier operates at a smaller working frequency, that is, the second working frequency, which can be the fan speed of the humidifier is 1600rpm, which can reduce the noise during the operation of the humidifier. In this embodiment, during the entire humidification process, the working frequency of the humidifier is dynamically adjusted according to the current humidity, which can ensure the humidification time while reducing the noise during the operation.

[0107] In another embodiment, when the current humidity is greater than the opening humidity and less than the closing humidity, and the difference between the current humidity and the closing humidity is greater than a preset difference, the humidifier is controlled to operate at a third operating frequency.

[0108] When the current humidity is greater than the opening humidity and less than the closing humidity, and the difference between the current humidity and the closing humidity is greater than the preset difference, the humidifier is controlled to operate at a fourth operating frequency, wherein the third operating frequency is less than the second operating frequency, and the fourth operating frequency is less than the third operating frequency.

[0109] For example, when the shutdown humidity is 90%, the preset difference is 15%. When the difference between the current humidity and the shutdown humidity is greater than the preset difference, that is, the current humidity is between 61% and 75%, the humidifier is controlled to operate at the third operating frequency, which may be 1200 rpm for the fan speed of the humidifier, which can further reduce the noise during operation. When the difference between the current humidity and the shutdown humidity is greater than the preset difference, that is, the current humidity is between 17% and 90%, the humidifier is controlled to operate at the fourth operating frequency, which may be 1000 rpm for the fan speed of the humidifier.

[0110] The entire dynamic adjustment process of the humidifier is that as the humidifier works, the indoor humidity of the cold storage room gradually increases, while the operating frequency of the humidifier is controlled to gradually decrease, thereby reducing the noise during the working process. The preset difference of the dynamic adjustment is not limited, and it can be a uniform change in the humidity range that controls the change of the operating frequency, or a non-uniform change. The operating frequency is divided into four changes to avoid frequent switching of frequencies and save power consumption.

[0111] In one embodiment, the humidifier includes a humidifying water box and a fan. The gas generated by the fan passes through the humidifying water box to generate humidified gas, so controlling the rotation speed of the fan can control the operating frequency of the humidifier.

[0112] In step S220, when the refrigerator is in operation and the current humidity is less than the preset humidity, the refrigerator is controlled to operate until the temperature in the refrigerated room reaches the preset temperature, including:

[0113] The speed of the fan of the refrigeration and refrigerator is controlled to increase by 10%-30% compared to the previous working state, for example, it can be increased by 10%, 20%, 30%, etc., until the temperature in the cold storage room reaches the preset temperature. During the alternating operation, the fan speed can also be increased during the operation of the refrigeration refrigerant. This embodiment can make the refrigeration process proceed quickly, that is, make the current temperature reach the predetermined temperature faster, and switch to the humidification process in time. The humidifier can also be composed of a humidifying water box and a compressor. Similarly, the compressor frequency of the compressor can be increased by 10%-30% to achieve rapid refrigeration.

[0114] In one embodiment, the humidification water box of the humidifier includes a liquid level sensor. When the current humidity is lower than the opening humidity, it can be determined whether the liquid level in the humidification water box is higher than the lower limit. When the liquid level is lower than the lower limit, a reminder signal can be issued to remind the user to replenish water. The reminder signal can be a reminder light, an alarm, sending a signal to an external device, etc.

[0115] For humidity control in the drawer, the control logic of the control method for the refrigerating compartment can also be applied.

[0116] Furthermore, in order to make the drawer part and the refrigerated compartment achieve different refrigeration environments, the control method may also include: according to the set requirements, controlling the opening time of the damper so that the temperature and humidity in the drawer part are different from the temperature and humidity in the refrigerated compartment. The set requirements may be, for example: compared with the refrigerated compartment, the drawer part has a lower temperature and lower humidity, and is used to refrigerate grains, pasta, spices, tea and other ingredients; the refrigerated compartment has a higher temperature and higher humidity than the refrigerated compartment, and is used to refrigerate vegetables, fruits, mushrooms and other ingredients. The drawer part can adjust the humidity environment in the drawer part to different humidity ranges according to the needs of the user, realize the switch from the dry area to the wet area, and provide different humidity guarantees for storing different types of food. The humidity range may be, for example, a high humidity range of 80%-95%, a medium humidity range of 50-80%, and a low humidity of <50%.

[0117] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A refrigerator, It is characterized in that include: Cold storage room; An air duct, comprising a first air inlet end, a second air inlet end and an air outlet end, wherein the air outlet end is connected to the refrigerating compartment; A refrigeration refrigerator for generating refrigerated gas, connected to the first air inlet end, and the refrigerated gas is blown into the refrigerated compartment through the air duct; A humidifier for generating humidified gas is connected to the second air inlet end, and the humidified gas is blown into the refrigerated compartment through the air duct.

2. The refrigerator according to claim 1, It is characterized in that The refrigerating compartment is provided with at least two first air inlets, the air outlet end includes at least two first air outlets corresponding to the number of the first air inlets, and the first air outlets are connected to the first air inlets in a one-to-one correspondence.

3. The refrigerator according to claim 2, It is characterized in that At least two of the first air inlets are symmetrically arranged on the side walls of the refrigerating compartment.

4. The refrigerator according to claim 1, It is characterized in that The humidifier comprises a humidifying water box for generating humidified gas and a humidifying fan for blowing air to the humidifying water box. The humidifying water box is provided with an air outlet, and the air outlet is connected to the second air inlet end.

5. The refrigerator according to claim 4, It is characterized in that It also includes a drainage pipe connected between the refrigeration refrigerator and the humidification water box, and the drainage pipe is used to introduce the defrosting water generated by the refrigeration refrigerator into the humidification water box.

6. The refrigerator according to claim 5, It is characterized in that The humidifying water box is also provided with an air return port, the air return port is provided with a filter screen and is connected to the refrigerating compartment. The air return port is used to return the humidified gas flowing through the refrigerating compartment to the humidifying water box.

7. The refrigerator according to claim 1, It is characterized in that It also includes a drawer part, which is isolated from the refrigerating compartment. The air duct also includes a second air outlet end, which is connected to the drawer part.

8. The refrigerator according to claim 7, It is characterized in that It also includes an air door, which is openably and closably arranged between the second air outlet and the drawer portion; when the air door is opened, the air duct is connected to the drawer portion; when the air door is closed, the air duct and the drawer portion are blocked.

9. The refrigerator according to claim 8, It is characterized in that The device further comprises a controller and a first temperature sensor and a first humidity sensor electrically connected to the controller, wherein the first temperature sensor is used to detect the temperature in the drawer and output a first temperature signal to the controller; the first humidity sensor is used to detect the humidity in the drawer and output the first humidity signal to the controller; The controller is also electrically connected to the damper, the humidifier and the refrigerator, and is used to control the damper, the humidifier and the refrigerator according to the first temperature signal and the first humidity sensor.

10. The refrigerator according to claim 1, It is characterized in that The refrigerator further comprises a controller and a second temperature sensor and a second humidity sensor electrically connected to the controller; The second temperature sensor is used to detect the temperature inside the refrigerating compartment and output a second temperature signal to the controller; The second humidity sensor is used to detect the humidity in the refrigerating compartment and output a second humidity signal to the controller; The controller is also electrically connected to the humidifier and the refrigerator, and controls the humidifier and the refrigerator according to the second temperature signal and the second humidity signal.

11. The refrigerator according to any one of claims 1 to 10, It is characterized in that The humidifier further comprises a sterilization module for introducing sterilization gas into the air duct; and / or The refrigerator further comprises an external pipe, one end of which is connected to the humidifier, and the other end of which is used to be connected to the outside of the refrigerator.

12. A method for controlling a refrigerator, The refrigerator include: Cold storage room; The air duct comprises a first air inlet end, a second air inlet end and a first air outlet end, wherein the first air outlet end is connected to the refrigerating compartment; A refrigeration refrigerator for generating refrigerated gas, connected to the first air inlet end, and the refrigerated gas is blown into the refrigerated compartment through the air duct; A humidifier for generating humidified gas, which is connected to the second air inlet end, and the humidified gas is blown into the refrigerated compartment through the air duct; The control method comprises: Confirm the current temperature and humidity in the cold storage room, and determine whether the current temperature and humidity reach the preset temperature and humidity; According to the judgment result, the refrigerator is controlled to work so that the temperature inside the cold storage room reaches the preset temperature, and the humidifier is controlled to work so that the humidity inside the cold storage room reaches the preset humidity; wherein, the refrigerator and the humidifier are selectively turned on, when the refrigerator is turned on, the humidifier is turned off; when the humidifier is turned on, the refrigerator is turned off.

13. The refrigerator control method according to claim 12, It is characterized in that According to the judgment result, controlling the refrigeration and cooling device to operate so that the temperature in the refrigeration room reaches a preset temperature, and controlling the humidifier to operate so that the humidity in the refrigeration room reaches a preset humidity, comprises: When the refrigerator is in the off state and the current humidity is less than the preset humidity, the humidifier is controlled to work until the humidity in the refrigerator reaches the preset humidity; When the refrigerator is in operation and the current humidity is lower than a preset humidity, the refrigerator is first controlled to operate until the temperature in the refrigerator reaches the preset temperature, and then the humidifier is controlled to operate until the humidity in the refrigerator reaches the preset humidity; or When the refrigerator is in operation and the current humidity is lower than a preset humidity, the refrigerator and the humidifier are controlled to operate alternately, so that the temperature and humidity in the refrigerated room alternately reach the preset temperature and the preset humidity.

14. The refrigerator control method according to claim 13, It is characterized in that The alternately controlling the operation of the refrigeration unit and the humidifier includes: repeating the alternate operation at least twice; The alternating operation once comprises: Controlling the refrigeration and refrigerator to turn on so that the temperature in the refrigeration compartment reaches an intermediate temperature, and controlling the refrigeration and refrigerator to turn off; the intermediate temperature is greater than the preset temperature; Controlling the humidifier to turn on so that the humidity in the cold storage room reaches an intermediate humidity, and controlling the humidifier to turn off; the intermediate humidity is less than the preset humidity; The intermediate temperature gradually approaches the preset temperature as the number of executions of the alternating operation increases, and the intermediate humidity gradually approaches the preset humidity as the number of executions of the alternating operation increases.

15. The refrigerator control method according to claim 12, It is characterized in that The preset humidity includes turning on humidity and turning off humidity, and the control of the humidifier to make the humidity in the cold storage room reach the preset humidity includes: When the current humidity is lower than the start humidity, the humidifier is controlled to start; When the current humidity reaches the shut-off humidity, controlling the humidifier to shut down; Wherein, the closing humidity is greater than the opening humidity.

16. The refrigerator control method according to claim 15, It is characterized in that When the current humidity is less than the opening humidity, controlling the humidifier to open includes: When the current humidity is less than the opening humidity and the difference is greater than the preset difference, the humidifier is controlled to operate at the first operating frequency; When the current humidity is less than the opening humidity and the difference is less than the preset difference, the humidifier is controlled to operate at the second operating frequency; The first operating frequency is greater than the second operating frequency.

17. The refrigerator control method according to any one of claims 12 to 16, It is characterized in that The humidifier comprises a humidifying water box and a fan, and the gas generated by the fan passes through the humidifying water box to generate humidified gas; When the refrigerator is in operation and the current humidity is lower than the preset humidity, the refrigerator is controlled to operate until the temperature in the cold storage room reaches the preset temperature, including: The speed of the fan of the refrigerator is controlled to be increased by 10%-30% compared with the previous working state until the temperature in the refrigerated room reaches the preset temperature.

18. The refrigerator control method according to claim 12, It is characterized in that The refrigerator further comprises a drawer and an air door, wherein the drawer is isolated from the refrigerating compartment, and the air duct further comprises a second air outlet, wherein the second air outlet is connected to the drawer; the air door is openably and closably arranged between the second air outlet and the drawer; when the air door is opened, the air duct is connected to the drawer; when the air door is closed, the air duct is blocked from the drawer; The control method further comprises: According to the setting requirements, the opening time of the damper is controlled so that the temperature and humidity in the drawer part are different from the temperature and humidity in the refrigerating compartment.

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