A humidifying refrigerator and its control method

Abstract

This invention discloses a humidifying refrigerator and its control method, comprising a cabinet; a storage compartment and a humidifying drawer disposed within the cabinet, the humidifying drawer being located below the storage compartment; a water storage box, detachably disposed within the cabinet and located below the storage compartment; a spray device disposed within the cabinet and connected to the water storage box; the nozzle of the spray device extending into the top opening of the humidifying drawer; a first drain pipe, one end connected to the bottom of the storage compartment and the other end connected to the water storage box; and a controller disposed within the cabinet and connected to the spray device. In this invention, condensate / defrost water collected in the storage compartment is used by the water storage box to supply water to the spray device. When the spray device is activated, it sprays a mist of water into the humidifying drawer, increasing the humidity inside the drawer and thus improving the humidifying performance of the refrigerator.

Description

Technical Field

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

[0002] Existing refrigerators often include a humidifier drawer to improve the refrigerator's ability to keep food moist. The principle behind this is usually to reduce the space occupied by the humidifier drawer, making it smaller than the space occupied by the storage compartment; and to keep the drawer in a sealed, passive space, thereby locking in the moisture evaporated from the food inside the humidifier drawer, thus increasing the humidity inside the drawer. However, when the food stored in the humidifier drawer has no moisture to evaporate, the drawer cannot maintain a good humidity atmosphere, resulting in poor refrigerator moisturizing performance.

[0003] Therefore, existing technologies still need to be improved and developed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a humidifying refrigerator and its control method in view of the above-mentioned defects of the prior art, which aims to improve the humidifying performance.

[0005] The technical solution adopted by this invention to solve the technical problem is as follows:

[0006] A humidifying refrigerator includes a cabinet, a storage compartment and a humidifying drawer disposed within the cabinet; the humidifying drawer is located below the storage compartment and further includes:

[0007] A water storage box is detachably installed inside the box and located below the storage chamber;

[0008] A spray device is installed inside the box and connected to the water storage box; the nozzle of the spray device extends into the top opening of the humidifying drawer;

[0009] The first drain pipe has one end connected to the bottom of the storage room and the other end connected to the water storage box;

[0010] The controller is located inside the housing and connected to the spraying device.

[0011] The humidifying refrigerator also includes:

[0012] The compressor compartment is located inside the box and below the humidifying drawer;

[0013] A water receiving tray is installed inside the compressor compartment;

[0014] The second drain pipe has one end connected to the bottom of the storage room and the other end arranged in the water receiving tray; the second drain pipe is connected to the first drain pipe.

[0015] The humidifying refrigerator also includes:

[0016] A three-way valve is installed inside the housing and connected to the controller;

[0017] The third drain pipe is connected at one end to the bottom of the storage room and at the other end to the inlet valve of the three-way valve.

[0018] The first outlet valve of the three-way valve is connected to the end of the first drain pipe away from the water storage box; the second outlet valve of the three-way valve is connected to the end of the second drain pipe away from the water receiving tray.

[0019] The humidifying refrigerator also includes:

[0020] A humidity detection device is installed inside the humidification drawer and connected to the controller.

[0021] The humidifying refrigerator also includes:

[0022] A water level detection device is installed inside the water storage box and connected to the controller.

[0023] The humidifying refrigerator also includes:

[0024] An alarm is installed outside the enclosure and connected to the controller.

[0025] A control method for the aforementioned humidifying refrigerator, wherein the control method includes the following steps:

[0026] The controller obtains the current humidity in the humidifying drawer in real time through a humidity detection device installed in the humidifying drawer; and obtains the current water level in the water storage box in real time through a water level detection device installed in the water storage box.

[0027] Based on the current humidity, the current water level, and preset rules, determine whether to activate the spray device;

[0028] When this occurs, the spray device is turned on until the current humidity is greater than the preset humidity, at which point the spray device is turned off.

[0029] The control method for the humidifying refrigerator, wherein the preset rule is:

[0030] When the current humidity is less than or equal to the preset humidity and the current water level is greater than or equal to the preset water level, the spray device is turned on.

[0031] When the current humidity is greater than the preset humidity, keep the spray device off.

[0032] The control method for the humidifying refrigerator, wherein the humidifying refrigerator further includes:

[0033] The compressor compartment is located inside the box and below the humidifying drawer;

[0034] A water receiving tray is installed inside the compressor compartment;

[0035] The second drain pipe has one end connected to the bottom of the storage room and the other end arranged in the water receiving tray; the second drain pipe is connected to the first drain pipe.

[0036] A three-way valve is installed inside the housing and connected to the controller;

[0037] The third drain pipe is connected at one end to the bottom of the storage room and at the other end to the inlet valve of the three-way valve.

[0038] The first outlet valve of the three-way valve is connected to the end of the first drain pipe away from the water storage box; the second outlet valve of the three-way valve is connected to the end of the second drain pipe away from the water receiving tray; initially, the inlet valve, the first outlet valve and the second outlet valve of the three-way valve are all open;

[0039] The control method further includes the following steps:

[0040] When the current water level is lower than the preset water level, the second water outlet valve is closed until the current water level is equal to the preset water level, at which point the first water outlet valve is closed and the second water outlet valve is opened.

[0041] The control method for the humidifying refrigerator further includes the following steps:

[0042] When the second water outlet valve is closed for a preset time and the current water level is lower than the preset water level, the alarm set outside the box and connected to the controller will be activated to prompt the user to manually add water to the water storage box.

[0043] Beneficial effects: In this invention, a spray device is added to the cabinet, and the condensate / defrost water in the storage room is collected by a water storage box and then used to supply water to the spray device. When the spray device is turned on, it sprays mist-like water into the humidifying drawer, increasing the humidity inside the humidifying drawer, thereby improving the humidifying performance of the humidifying refrigerator. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the structure of the humidifying refrigerator described in this invention;

[0045] Figure 2 This is a functional principle block diagram of the humidifying refrigerator described in this invention;

[0046] Figure 3This is a flowchart of the control method for the humidifying refrigerator described in this invention. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0048] This invention provides a moisture-retaining refrigerator, such as... Figure 1 As shown, the humidifying refrigerator includes a cabinet 1, a storage compartment 2, and a humidifying drawer 3; the storage compartment 2 and the humidifying drawer 3 are both located inside the cabinet 1, and the storage compartment 2 and the humidifying drawer 3 are arranged sequentially from top to bottom.

[0049] like Figure 1 and Figure 2 As shown, the humidifying refrigerator also includes a water storage box 5, a spray device 20, a first drain pipe 6, and a controller 7; the water storage box 5 is detachably installed inside the cabinet 1; the water storage box 5 is located below the storage compartment 2 and is arranged side by side with the humidifying drawer 3. The spray device 20 is installed inside the cabinet 1 and connected to the water storage box 5; the nozzle of the spray device 20 extends into the top opening of the humidifying drawer 3, so that the internal space of the humidifying drawer 3 used for holding food is within the spray range of the spray device 20.

[0050] One end of the first drain pipe 6 is connected to the bottom of the storage compartment 2 and communicates with the accommodating space of the storage compartment 2; the other end is connected to the water storage box 5. Since the water storage box 5 is located below the storage compartment 2, the condensate or defrost water in the storage compartment 2 can flow downwards into the water storage box 5 under its own gravity after passing through the first drain pipe 6, thereby supplying water to the spray device 20. The controller 7 is located inside the cabinet 1 and is connected to the spray device 20, thereby controlling the opening and closing of the spray device 20. When the spray device 20 is turned on, it sprays a mist of water into the humidifying drawer 3, increasing the humidity inside the humidifying drawer 3, thereby improving the humidifying performance of the refrigerator.

[0051] When the humidifying refrigerator is a direct-cooling refrigerator, the storage compartment 2 supplies condensate to the water storage box 5; when the humidifying refrigerator is a frost-cooling refrigerator, the storage compartment 2 supplies defrost water to the water storage box 5.

[0052] In this invention, a spray device 20 is added inside the cabinet 1, and the condensate / defrost water in the storage compartment 2 is collected by the water storage box 5 and then used to supply water to the spray device 20. When the spray device 20 is turned on, it sprays mist-like water into the humidifying drawer 3, increasing the humidity inside the humidifying drawer 3. This not only improves the humidifying performance of the refrigerator, but also makes use of the condensate / defrost water generated in the storage compartment 2.

[0053] The spray device 20 described in this invention is an existing spray device 20, therefore its structure will not be described in detail here. It should be noted that, since the humidifying drawer 3 needs to be able to be pulled out and pushed out under external force, there needs to be an assembly gap between the top of the humidifying drawer 3 and the housing 1 to ensure the humidifying drawer 3 can move; the nozzle of the spray device 20 is located within the assembly gap at the top of the humidifying drawer 3, and the volume of the nozzle of the spray device 20 is designed not to affect the movement of the humidifying drawer 3, thereby avoiding any undesirable interference from the spray device 20 on the pulling / pushing of the humidifying drawer 3.

[0054] Since the water storage box 5 is connected to the box body 1 in a detachable manner, the water resources in the water storage box 5 can be obtained not only from the storage room 2 through the first drain pipe 6, but also by the user removing the water storage box 5 from the box body 1 and manually adding water.

[0055] The humidifying refrigerator also includes a compressor compartment 8, a drip tray 9, and a second drain pipe 10. The compressor compartment 8 is located inside the cabinet 1 and at the bottom of the cabinet 1; specifically, the compressor compartment 8 is located below the humidifying drawer 3. The drip tray 9 is located inside the compressor compartment 8. One end of the second drain pipe 10 is connected to the bottom of the storage compartment 2, and the other end is arranged in the drip tray 9, thereby draining the condensate / defrost water generated in the storage compartment 2 into the drip tray 9.

[0056] Since the water tray 9 is located inside the compressor compartment 8, the high temperature generated when the compressor is working can cause a large amount of water in the water tray 9 to evaporate. Therefore, the water tray 9 can collect excess condensate / defrost water and almost no manual emptying is required.

[0057] In one embodiment of the present invention, the second drain pipe 10 is connected to the first drain pipe 6, that is, the water receiving tray 9 and the water storage box 5 are connected in parallel to the storage chamber 2, thereby collecting the condensate / defrost water generated in the storage chamber 2. After the second drain pipe 10 obtains the condensate / defrost water from the storage chamber 2, it can discharge the water into the water receiving tray 9 or into the water storage box 5.

[0058] In this invention, since the second drain pipe 10 can discharge the condensate / defrost water to the water storage box 5 after obtaining the condensate / defrost water, the amount of water received by the water receiving tray 9 is reduced, effectively reducing the risk of the water receiving tray 9 overflowing.

[0059] The humidifying refrigerator also includes a three-way valve 11 and a third drain pipe 14; the three-way valve 11 is disposed inside the cabinet 1. Specifically, one end of the third drain pipe 14 is connected to the bottom of the storage compartment 2, and the other end is connected to the water inlet valve 101 of the three-way valve 11; the first water outlet valve 102 of the three-way valve 11 is connected to the end of the first drain pipe 6 away from the water storage box 5; the second water outlet valve 103 of the three-way valve 11 is connected to the end of the second drain pipe 10 away from the water receiving tray 9.

[0060] The three-way valve 11 is electrically connected to the controller 7. The controller 7 controls the opening and closing of the inlet valve 101, the first outlet valve 102, and the second outlet valve 103 of the three-way valve 11, thereby adjusting the flow direction of the condensate / defrost water discharged from the storage chamber 2: when the inlet valve 101 is open, the first outlet valve 102 is open, and the second outlet valve 103 is closed, the condensate / defrost water flows to the water storage box 5 through the first drain pipe 6; when the inlet valve 101 is open, the first outlet valve 102 is closed, and the second outlet valve 103 is open, the condensate / defrost water flows to the water receiving tray 9 through the first drain pipe 6.

[0061] The humidifying refrigerator also includes a humidity detection device 12, which is installed inside the humidifying drawer 3 and connected to the controller 7. The humidity detection device 12 is used to detect the current humidity inside the humidifying drawer 3 and send the current humidity information to the controller 7, so that the controller 7 can determine whether to turn on the spray device 20 to increase the humidity of the humidifying drawer 3 based on the current humidity.

[0062] In one embodiment of the present invention, the humidity detection device 12 includes a humidity sensor.

[0063] The humidifying refrigerator also includes a water level detection device 13, which is installed inside the water storage box 5 and connected to the controller 7. The water level detection device 13 is used to detect the current water level in the water storage box 5 and send the current water level information to the controller 7 so that the controller 7 can determine whether to add water to the water storage box 5 based on the current water level.

[0064] In one embodiment of the present invention, the water level detection device 13 includes a water level sensor.

[0065] The humidifying refrigerator also includes an alarm 17, which is located outside the cabinet 1 and connected to the controller 7. The alarm 17, under the control of the controller 7, emits an alarm buzzer and / or a voice prompt to alert the user. In one embodiment of the invention, when the alarm 17 is activated, it emits an alarm buzzer and plays a voice prompt saying "Please add water." The alarm 17 described in this invention uses a conventional alarm 17; its structure and working principle will not be described in detail here.

[0066] Based on the aforementioned humidifying refrigerator, the present invention also provides a control method for the humidifying refrigerator. For example... Figure 3 As shown, the control method of the humidifying refrigerator includes the following steps:

[0067] S100: The controller obtains the current humidity in the humidifying drawer in real time through a humidity detection device installed in the humidifying drawer, and obtains the current water level in the water storage box in real time through a water level detection device installed in the water storage box.

[0068] Specifically, the humidity detection device 12 is installed on the inner side wall of the humidifying drawer 3 and is located in the middle of the humidifying drawer 3. Since humid air is heavier, it tends to settle at the bottom of the humidifying drawer 3, while relatively drier air is located at the top. Therefore, installing the humidity detection device 12 in the middle of the humidifying drawer 3 makes the judgment on whether the humidity in the humidifying drawer 3 needs to be increased more accurate, and reduces the occurrence of the following phenomena: when the upper area of ​​the humidifying drawer 3 meets the humidity requirements, the humidity in the lower area is too high; when the lower area of ​​the humidifying drawer 3 meets the humidity requirements, the humidity in the upper area is insufficient.

[0069] S200: Based on the current humidity, the current water level, and preset rules, determine whether to activate the spray device;

[0070] Specifically, the preset rule is a pre-set rule for whether or not the spray device 20 needs to be turned on to increase the humidity inside the humidifying drawer 3. Initially, the spray device 20 remains off.

[0071] The preset rule is as follows:

[0072] When the current humidity is less than or equal to the preset humidity and the current water level is greater than or equal to the preset water level, the spray device is turned on.

[0073] Specifically, when the current humidity is less than or equal to the preset humidity, the humidity inside the humidifying drawer 3 is insufficient to provide moisture for the food. Therefore, it is necessary to replenish the humidity inside the humidifying drawer 3 with water to increase its humidity. When increasing the humidity of the humidifying drawer 3 through the spray device 20, it is necessary to first determine whether the water level in the water storage box 5 is sufficient.

[0074] When the current water level is lower than the preset water level, the water in the water storage box 5 is insufficient. The alarm 17 is then activated to prompt the user to manually add water to the water storage box 5, ensuring the water supply is replenished and the spray device 20 can be turned on as soon as possible. When the current water level is greater than or equal to the preset water level, the spray device 20 is turned on.

[0075] When the current humidity is greater than the preset humidity, there is no need to humidify the humidifying drawer, so the spray device should be kept off.

[0076] S300. When this is the case, control the spray device to turn on until the current humidity is greater than the preset humidity, then control the spray device to turn off.

[0077] Specifically, when the current humidity is less than or equal to the preset humidity and the current water level is greater than or equal to the preset water level, the spray device 20 is turned on, and the humidity is continuously monitored in real time by the humidity detection device 12 until the current humidity is greater than the preset humidity, then the spray device 20 is turned off.

[0078] In one embodiment of the present invention, initially, the inlet valve 101, the first outlet valve 102, and the second outlet valve 103 of the three-way valve 1 are all open, so that the condensate / defrost water in the storage chamber 2 can simultaneously and continuously supply water to the water storage box 5 and the drip tray 9.

[0079] In one embodiment of this invention, the control method for the humidifying refrigerator further includes the following steps:

[0080] When the current water level is lower than the preset water level, the second water outlet valve is closed until the current water level is greater than or equal to the preset water level, at which point the first water outlet valve is closed and the second water outlet valve is opened.

[0081] Specifically, when the current water level is lower than the preset water level, the condensate / defrost water in the storage chamber 2 is insufficient to supply enough water to the water storage box 5. Therefore, in this embodiment, the second water outlet valve 103 is closed so that all condensate / defrost water is supplied only to the water storage box 5, so that the water level in the water storage box 5 can be raised as quickly as possible.

[0082] When the second outlet valve 103 is closed until the current water level is greater than or equal to the preset water level, the water supply in the water storage box 5 is sufficient and no further supply is needed. To reduce the risk of water overflowing in the water storage box 5, the controller 7 controls the first outlet valve 102 to close and the second outlet valve 103 to open, thereby supplying water to the water receiving tray 9. This process continues until the current water level in the water storage box 5 is detected to be less than the preset water level again. Then, the controller 7 controls the first outlet valve 102 to open and the second outlet valve 103 to close again, and this cycle repeats.

[0083] The control method for the humidifier refrigerator also includes the following steps:

[0084] When the second water outlet valve is closed for a preset time and the current water level is lower than the preset water level, the alarm set outside the box and connected to the controller will be activated to prompt the user to manually add water to the water storage box.

[0085] Specifically, when the current water level in the water storage box 5 is lower than the preset water level, the controller 7 controls the second water outlet valve 103 to close and the first water outlet valve 102 to open. When the second water outlet valve 103 is closed for the preset duration, there is insufficient condensate / defrost water to provide enough water for the water storage box 5. Therefore, to ensure that the spray device 20 can be opened normally when needed, in this invention, when the second water outlet valve 103 is closed for the preset duration and the current water level is lower than the preset water level, the alarm 17, which is located outside the box 1 and connected to the controller 7, is activated to prompt the user to manually add water to the water storage box 5 to quickly replenish the water volume in the water storage box 5.

[0086] One embodiment of the present invention, such as Figure 1 As shown, the humidifying refrigerator also includes a fourth drain pipe 15, one end of which is connected to the bottom of the water storage box 5, and the other end is placed in the water receiving tray 9; a control valve 16 is provided on the fourth drain pipe 15; as shown Figure 2 As shown, the control valve 16 is electrically connected to the controller 7, and initially, the control valve 16 is closed. Based on this embodiment, the control method for the humidifier refrigerator further includes the following steps:

[0087] Pre-set warning water levels;

[0088] When the current water level in the water storage box reaches the warning water level, the control valve is opened until the current water level equals the preset water level, at which point the control valve is closed.

[0089] Specifically, the warning water level is the highest water level in the water storage box 5; the warning water level is higher than the preset water level. When the current water level reaches the warning water level, the water in the water storage box 5 is too much, posing a risk of overflow and potentially leading to insufficient water safety due to prolonged consumption. Therefore, in this invention, when the current water level in the water storage box 5 reaches the warning water level, the controller 7 controls the control valve 16 to open, discharging the water in the water storage box 5 to the receiving tray 9 through the fourth drain pipe 15. The water then evaporates at high temperature in the compressor compartment 8, thereby reducing the water level in the water storage box 5 and increasing the water replacement frequency.

[0090] When the control valve 16 is opened to the current water level equal to the preset water level, the controller 7 controls the control valve 16 to close, and the water storage box 5 retains enough water to supply the spray device 20.

[0091] Based on this embodiment, the control method of the humidifying refrigerator further includes the following steps:

[0092] At preset intervals, based on the current humidity, the current water level, and preset rules, it is determined whether to activate the spray device.

[0093] If not, control the control valve to open, and after the control valve has been open for a second preset time, control the control valve to close.

[0094] Specifically, at preset intervals, the water stored in the water storage box 5 needs to be drained to replenish it with fresh water, preventing the water from remaining in the box for too long and breeding excessive bacteria. When the water source needs to be changed, it is also necessary to determine whether the spray device 20 needs to be turned on. If the spray device 20 does not need to be turned on, the control valve 16 can be opened. After the control valve 16 has been open for a second preset time, it is then closed to continue water storage. The second preset time is the time required for the water level in the water storage box 5 to drop from a preset level to 0.

[0095] In summary, the present invention provides a humidifying refrigerator and its control method. The spray device is added to the refrigerator body, and the condensate / defrost water in the storage room is collected by the water storage box and then used to supply water to the spray device. When the spray device is turned on, the spray device sprays mist water into the humidifying drawer, increasing the humidity in the humidifying drawer, thereby improving the humidifying performance of the refrigerator.

[0096] It should be understood that the application of the present invention is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A humidifying refrigerator, comprising a cabinet, and a storage compartment and a humidifying drawer disposed within the cabinet; the humidifying drawer is located below the storage compartment, characterized in that, It also includes: A water storage box is detachably installed inside the box and located below the storage chamber; A spray device is installed inside the box and connected to the water storage box; the nozzle of the spray device extends into the top opening of the humidifying drawer; The first drain pipe has one end connected to the bottom of the storage room and the other end connected to the water storage box; The controller is located inside the housing and connected to the spraying device; The compressor compartment is located inside the box and below the humidifying drawer; A water receiving tray is installed inside the compressor compartment; A fourth drain pipe; one end of the fourth drain pipe is connected to the bottom of the water storage box, and the other end is placed in the water receiving tray; a control valve is provided on the fourth drain pipe, the control valve is electrically connected to the controller, and the control valve is initially closed; A humidity detection device is installed in the middle of the humidifying drawer and connected to the controller; A water level detection device is installed inside the water storage box and connected to the controller; The controller is used to obtain the current humidity in the humidifying drawer in real time through the humidity detection device; obtain the current water level in the water storage box in real time through the water level detection device; and determine whether to turn on the spray device at preset intervals based on the current humidity, the current water level, and preset rules; if not, control the control valve to open, and control the control valve to close after the control valve has been open for a second preset time. The preset rule is as follows: When the current humidity is less than or equal to the preset humidity and the current water level is greater than or equal to the preset water level, the spray device is turned on. The second preset duration is the time required for the water level in the water storage box to drop from the preset water level to 0.

2. The humidifying refrigerator according to claim 1, characterized in that, It also includes: The second drain pipe has one end connected to the bottom of the storage room and the other end arranged in the water receiving tray; the second drain pipe is connected to the first drain pipe.

3. The humidifying refrigerator according to claim 2, characterized in that, It also includes: A three-way valve is installed inside the housing and connected to the controller; The third drain pipe is connected at one end to the bottom of the storage room and at the other end to the inlet valve of the three-way valve. The first outlet valve of the three-way valve is connected to the end of the first drain pipe away from the water storage box; the second outlet valve of the three-way valve is connected to the end of the second drain pipe away from the water receiving tray.

4. The humidifying refrigerator according to claim 1, characterized in that, It also includes: An alarm is installed outside the enclosure and connected to the controller.

5. A control method for a humidifying refrigerator based on claim 1, characterized in that, The control method includes the following steps: The controller obtains the current humidity in the humidifying drawer in real time through a humidity detection device installed in the humidifying drawer; and obtains the current water level in the water storage box in real time through a water level detection device installed in the water storage box. Based on the current humidity, the current water level, and preset rules, determine whether to activate the spray device; When this occurs, the spray device is turned on until the current humidity is greater than the preset humidity, at which point the spray device is turned off. The preset rule is as follows: When the current humidity is less than or equal to the preset humidity and the current water level is greater than or equal to the preset water level, the spray device is turned on. When the current humidity is greater than the preset humidity, keep the spray device off; The control method further includes the following steps: Pre-set warning water levels; When the current water level in the water storage box reaches the warning water level, the control valve is opened until the current water level equals the preset water level, at which point the control valve is closed. The control method further includes the following steps: At preset intervals, based on the current humidity, the current water level, and preset rules, it is determined whether to activate the spray device. If not, control the control valve to open, and after the control valve has been open for a second preset time, control the control valve to close. The second preset duration is the time required for the water level in the water storage box to drop from the preset water level to 0.

6. The control method for the humidifying refrigerator according to claim 5, characterized in that, The humidifier refrigerator also includes: The second drain pipe has one end connected to the bottom of the storage room and the other end arranged in the water receiving tray; the second drain pipe is connected to the first drain pipe. A three-way valve is installed inside the housing and connected to the controller; The third drain pipe is connected at one end to the bottom of the storage room and at the other end to the inlet valve of the three-way valve. The first outlet valve of the three-way valve is connected to the end of the first drain pipe away from the water storage box; the second outlet valve of the three-way valve is connected to the end of the second drain pipe away from the water receiving tray; initially, the inlet valve, the first outlet valve and the second outlet valve of the three-way valve are all open; The control method further includes the following steps: When the current water level is lower than the preset water level, the second water outlet valve is closed until the current water level is equal to the preset water level, at which point the first water outlet valve is closed and the second water outlet valve is opened.

7. The control method for the humidifying refrigerator according to claim 6, characterized in that, It also includes the following steps: When the second water outlet valve is closed for a preset time and the current water level is lower than the preset water level, the alarm set outside the box and connected to the controller will be activated to prompt the user to manually add water to the water storage box.

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