Refrigerator and automatic water replenishing method thereof

Abstract

The automatic water supplementing method comprises the steps that when a water supplementing mode is started, the initial water injection rate of the water supplementing mode is obtained, the first preset water injection rate is calculated according to the initial water injection rate, water injection operation is conducted on a water storage box according to the first preset water injection rate, and a humidity control system is controlled to operate; and a chamber humidity value detected by the first humidity sensor is obtained, and when the chamber humidity value reaches a preset chamber humidity threshold value, the humidity control system is controlled to stop working. By adopting the embodiment of the invention, accurate, automatic and intelligent water replenishing can be realized, the situation that an expected humidity value is not reached due to water replenishing leakage of a user is avoided, the system reliability is improved, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a refrigerator and an automatic water replenishing method thereof. Background Art

[0002] The humidity control system in existing refrigerators or some small household appliances generally places a float containing a magnet in a water container, and magnetic sensitive components are placed around the water container. The float triggers the magnetic sensitive components to conduct as the water level drops, realizing the water shortage alarm function. It is necessary to manually add water. Due to the deviation of the magnetic flux of the magnet, the deviation of the structural assembly and the deviation of the individual magnetic sensitive components, the alarm does not sound during use, or the user forgets to add water after the alarm, which fails to achieve the expected water replenishment function and the user experience is poor. Summary of the invention

[0003] The purpose of the embodiment of the present invention is to provide a refrigerator and an automatic water replenishment method thereof, which can obtain the humidity value through a humidity sensor, calculate the water requirement according to the humidity change value, realize accurate automatic intelligent water replenishment, avoid the user's failure to reach the expected humidity value due to missing water replenishment, improve system reliability, and enhance user experience.

[0004] To achieve the above object, an embodiment of the present invention provides a refrigerator, comprising:

[0005] a box body, in which at least one storage chamber is formed;

[0006] A door, used for opening and closing the storage room;

[0007] A humidity control system is provided in the box body and is used to increase the humidity of the storage chamber. The humidity control system includes a water replenishment box, a water storage box, a water absorbing component, a water injection pipeline, a fan, and an air outlet. The humidity control system injects water into the water replenishment box through the water injection pipeline, and replenishes the water in the water storage box in real time through the water replenishment box. The water absorbing component is arranged close to the water storage box, and the fan collects the moisture generated by the water in the water absorbing component into the storage chamber through the air outlet.

[0008] A first humidity sensor is disposed in the storage room and is used to obtain a humidity value of a compartment in the storage room;

[0009] The controller is configured as:

[0010] In response to the water replenishment mode start-up operation, an initial water injection volume of the water replenishment mode is obtained, and a first preset water injection volume is calculated according to the initial water injection volume;

[0011] Filling the water storage box with water according to the first preset water filling amount, and controlling the operation of the humidity control system;

[0012] The compartment humidity value detected by the first humidity sensor is obtained, and when the compartment humidity value reaches a preset compartment humidity threshold, the humidity control system is controlled to stop working.

[0013] As an improvement of the above solution, the refrigerator further includes:

[0014] A flow meter, disposed in the box, for calculating the amount of water injected into the water storage box;

[0015] Then, the water injection operation includes:

[0016] Start water injection and obtain the cumulative water injection volume calculated by the flow meter;

[0017] When the accumulated water injection volume is less than the first preset water injection volume, continue to inject water; wherein the first preset water injection volume is a preset proportion of the initial water injection volume;

[0018] When the accumulated water injection amount is greater than or equal to the first preset water injection amount, water injection is stopped.

[0019] As an improvement of the above solution, the refrigerator further includes:

[0020] A second humidity sensor is provided at the air outlet of the humidity control system and is used to detect the air outlet humidity value at the air outlet of the humidity control system;

[0021] Then, the controller is further configured to:

[0022] When the compartment humidity value does not reach a preset compartment humidity threshold, obtaining an outlet humidity value detected by the second humidity sensor;

[0023] When the outlet humidity value reaches a preset outlet humidity threshold, continue to obtain the compartment humidity value detected by the first humidity sensor, and when the compartment humidity value reaches a preset compartment humidity threshold, control the humidity control system to stop working;

[0024] When the air outlet humidity value does not reach a preset air outlet humidity threshold, the door operation state of the refrigerator is obtained, and a water replenishment operation is performed according to the door operation state.

[0025] As an improvement of the above solution, the refrigerator further includes:

[0026] A third humidity sensor is provided outside the refrigerator and is used to obtain the ambient humidity value outside the refrigerator;

[0027] Then, the water replenishment operation is performed according to the operating state of the door, including:

[0028] When it is detected that the refrigerator door is not opened or closed, a second preset water injection amount is calculated, and a water replenishment operation is performed according to the second preset water injection amount. After the water replenishment operation is completed, the compartment humidity value detected by the first humidity sensor is continued to be obtained; wherein the second preset water injection amount is the difference between the initial water injection amount and the first preset water injection amount.

[0029] As an improvement of the above solution, the water replenishment operation according to the operating state of the door further includes:

[0030] When it is detected that the door of the refrigerator is opened or closed, the ambient humidity value detected by the third humidity sensor is obtained, and a water replenishment operation is performed according to the ambient humidity value. After the water replenishment operation is completed, the compartment humidity value detected by the first humidity sensor is continued to be obtained.

[0031] As an improvement of the above solution, the water replenishment operation according to the ambient humidity value includes:

[0032] Calculate the humidity difference between the ambient humidity value and the indoor humidity value and the door opening time of the refrigerator;

[0033] When the ambient humidity value is greater than the indoor humidity value, the required water replenishment amount is obtained according to the humidity difference and the door opening time, and the water storage box is replenished with water;

[0034] When the ambient humidity value is less than the indoor humidity value, the required water replenishment amount is obtained according to the humidity difference and the door opening time, and the water storage box is replenished with water.

[0035] To achieve the above-mentioned purpose, an embodiment of the present invention further provides an automatic water replenishment method for a refrigerator, the refrigerator comprising a box body, a box door and a humidity control system, at least one storage chamber is formed in the box body, the box door is used to open and close the storage chamber, the humidity control system is used to increase the humidity of the storage chamber, the humidity control system comprises a water storage box, a water absorption component, a water injection pipeline, a fan, and an air outlet, the humidity control system injects water into the water replenishment box through the water injection pipeline, and the water in the water storage box is replenished in real time through the water replenishment box, the water absorption component is arranged close to the water storage box, and the fan collects the moisture generated by the water in the water absorption component into the storage chamber through the air outlet;

[0036] Then, the automatic water replenishment method of the refrigerator includes:

[0037] In response to the water replenishment mode start-up operation, an initial water injection volume of the water replenishment mode is obtained, and a first preset water injection volume is calculated according to the initial water injection volume;

[0038] Filling the water storage box with water according to the first preset water filling amount, and controlling the operation of the humidity control system;

[0039] The compartment humidity value detected by the first humidity sensor is obtained, and when the compartment humidity value reaches a preset compartment humidity threshold, the humidity control system is controlled to stop working.

[0040] As an improvement of the above solution, the refrigerator further includes:

[0041] A flow meter, disposed in the box, for calculating the amount of water injected into the water storage box;

[0042] Then, the water injection operation includes:

[0043] Start water injection and obtain the cumulative water injection volume calculated by the flow meter;

[0044] When the accumulated water injection volume is less than the first preset water injection volume, continue to inject water; wherein the first preset water injection volume is a preset proportion of the initial water injection volume;

[0045] When the accumulated water injection amount is greater than or equal to the first preset water injection amount, water injection is stopped.

[0046] As an improvement of the above solution, the refrigerator further includes:

[0047] A second humidity sensor is provided at the air outlet of the humidity control system and is used to detect the air outlet humidity value at the air outlet of the humidity control system;

[0048] Then, the method further comprises:

[0049] When the compartment humidity value does not reach a preset compartment humidity threshold, obtaining an outlet humidity value detected by the second humidity sensor;

[0050] When the outlet humidity value reaches the preset humidity control system working humidity threshold, continue to obtain the compartment humidity value detected by the first humidity sensor, and when the compartment humidity value reaches the preset compartment humidity threshold, control the humidity control system to stop working;

[0051] When the air outlet humidity value does not reach a preset humidity control system operating humidity threshold, the refrigerator door operation state is obtained, and a water replenishment operation is performed according to the refrigerator door operation state.

[0052] As an improvement of the above solution, the refrigerator further includes:

[0053] A third humidity sensor is provided outside the refrigerator and is used to obtain the ambient humidity value outside the refrigerator;

[0054] Then, the water replenishment operation is performed according to the operating state of the door, including:

[0055] When it is detected that the refrigerator door is not opened or closed, a second preset water injection amount is calculated, and a water replenishment operation is performed according to the second preset water injection amount. After the water replenishment operation is completed, the compartment humidity value detected by the first humidity sensor is continued to be obtained; wherein the second preset water injection amount is the difference between the initial water injection amount and the first preset water injection amount.

[0056] Compared with the prior art, the refrigerator and its automatic water replenishment method disclosed in the present invention determine the water replenishment mode of the refrigerator and calculate the initial water injection amount, obtain the humidity values ​​of the humidity control system and the inside and outside of the refrigerator through the humidity sensor of the humidity control system, the humidity sensor of the refrigerator room, and the environmental humidity sensor, and perform the water replenishment operation of the refrigerator according to the difference between the environmental humidity and the humidity of the room and the opening time of the refrigerator. It can realize accurate automatic intelligent water replenishment, avoid the user's failure to reach the expected humidity value due to water omission, improve system reliability, and enhance user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 is a structural schematic diagram of a refrigerator provided by an embodiment of the present invention;

[0058] Figure 2 is a schematic diagram of installing a flow meter in a refrigerator provided by an embodiment of the present invention;

[0059] Figure 3 is a structural schematic diagram of a humidity control system in a refrigerator provided by an embodiment of the present invention;

[0060] Figure 4 is a top plan view of a humidity control system in a refrigerator provided by an embodiment of the present invention;

[0061] Figure 5 is an AA cross-sectional view of a humidity control system in a refrigerator provided by an embodiment of the present invention;

[0062] Figure 6 This is a wind circuit circulation diagram of a humidity control system in a refrigerator provided by an embodiment of the present invention;

[0063] Figure 7 is a schematic diagram of the installation position of a second humidity sensor in a refrigerator provided by an embodiment of the present invention;

[0064] Figure 8 This is a schematic diagram of the connection between the controller and other hardware devices provided by an embodiment of the present invention.

[0065] Fig. 9 is a first working flow diagram of a controller provided by an embodiment of the present invention;

[0066] Fig.10 is a second working flow diagram of the controller provided by an embodiment of the present invention;

[0067] Fig.11 is a third working flow diagram of the controller provided in an embodiment of the present invention;

[0068] Fig.12 is a fourth working flow diagram of the controller provided by an embodiment of the present invention;

[0069] Fig.13 is a fifth working flow chart of the controller provided by an embodiment of the present invention;

[0070] Fig.14 is a sixth working flow diagram of the controller provided by an embodiment of the present invention;

[0071] Fig.15 The present invention is a flowchart of an automatic water replenishment method for a refrigerator provided in an embodiment of the present invention.

[0072] Among them, 100, refrigerator; 10, humidity control system; 101, humidity control system box; 102, flow meter; 103, water storage box cover; 104, control panel component; 105, fan; 106, second humidity sensor; 107, ion sterilization unit; 108, display and control panel; 109, water injection pipeline; 110, water storage box; 111, water replenishment box; 112, water absorption component; 113, air inlet; 114, air outlet. DETAILED DESCRIPTION

[0073] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0074] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0075] The terms "first", "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0076] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0077] See also Figure 1 , Figure 1 1 is a schematic diagram of a refrigerator provided by an embodiment of the present invention. The refrigerator 100 of this embodiment has an approximately rectangular shape. The refrigerator includes a box body that defines a storage space and a plurality of door bodies arranged at the opening of the box body. The door body includes a door body shell located outside the box body, a door body liner located inside the box body, an upper end cover, a lower end cover, and an insulation layer located between the door body shell, the door body liner, the upper end cover, and the lower end cover. Usually, the insulation layer is filled with foam. The box body is provided with a chamber, wherein the chamber includes a component storage chamber for placing components in the refrigerator, such as a compressor cabin, etc., and also includes a storage space for storing food, etc. The storage space can be divided into a plurality of storage rooms (i.e., compartments). The storage room can be configured as a refrigeration room, a freezing room, and a temperature-changing room (also known as a fresh-keeping room) according to different uses. Each storage room corresponds to one or more door bodies, and the door body can be pivotally arranged at the opening of the box body, or can be opened in a drawer-like manner to achieve drawer-like storage. It also includes a humidity control system 10 for humidifying the air in the storage room. The humidity control system 10 can be an integral structure, produced and assembled separately, and can be installed on the inner side of the refrigerator door by setting a connecting structure that cooperates with the storage room door, such as a snap structure or a hanging structure. The specific position is preferably convenient for users to observe or operate.

[0078] See also Figure 2 , Figure 2It is a schematic diagram of the installation of a flow meter in a refrigerator provided by an embodiment of the present invention. The flow meter 102 in this embodiment is connected to the water storage box. When water flows into the water storage box, the flow meter 102 can detect the amount of water injected into the water storage box, calculate the cumulative amount of water injected into the water storage box, and ensure that the amount of water entering the water storage box meets the preset value. During the process of the water replenishment box 111 injecting water into the water storage box 110, the water flows through the flow meter 102, and the flow meter 102 detects the water injection flow of the water storage box 110. Within a certain water pressure range, the flow meter 102 will generate a pulse when a certain amount of water passes through it. The total number of pulses represents the amount of water flow that has passed through it. The water injection amount can be calculated based on the number of pulses. For example, to achieve a water injection amount of 500g, the pulse number of the flow meter needs to reach 500 pulses. In this case, the pulse threshold is set to 500. When the real-time pulse number of the flow meter reaches 500 pulses, it indicates that 500g of water has been injected. The pulse signal output by the flow meter 102 is positively correlated with the water injection amount. The flow meter 102 is electrically connected to the controller, and the detection data of the flow meter 102 can be sent to the controller, so that the controller controls the water injection operation.

[0079] See also Figure 3 , Figure 4 and Figure 5 , Figure 3 is a structural schematic diagram of a humidity control system in a refrigerator provided by an embodiment of the present invention, Figure 4 is a top plan view of a humidity control system in a refrigerator provided by an embodiment of the present invention, Figure 5 AA cross-sectional view of a humidity control system in a refrigerator provided by an embodiment of the present invention. The humidity control system 10 described in the embodiment of the present invention is arranged in the box body and is used to humidify the items stored in the compartment. In some embodiments, the humidity control system 10 is directly placed on the shelf of the door. The humidity control system 10 includes a humidity control system box body 101, a water storage box cover 103, a control panel component 104, a fan 105, a second humidity sensor 106, an ion sterilization component 107, a display control panel 108, a water injection pipeline 109, a water storage box 110, a water replenishment box 111 and a water absorption component 112.

[0080] Among them, the water injection pipeline 109 is connected to the household water, and the water is injected into the water replenishment box 111 through the water injection pipeline 109. The capacity of the water replenishment box 111 is larger than the water storage box 110. The water amount in the water storage box 110 is replenished in real time through the water replenishment box 111. A water storage box cover 103 is provided on the water storage box 110, and the water absorption component 112 is arranged close to the water storage box 110. The fan 105 collects the moisture generated by the water in the water absorption component 112 into the storage room through the air outlet. The second humidity sensor 106 is arranged at the air outlet, which is used to detect the outlet humidity value at the air outlet of the humidity control system. The ion sterilization component 107 is arranged on the air outlet path of the fan, which is used to sterilize the air flow passing through. The display control panel 108 is used to display the status information of the humidity control system.

[0081] Specifically, a portion of the water absorbing component 112 is inserted into the water storage box 110 to contact the water in the water storage box 110, that is, a portion of the water absorbing component 112 is immersed in the water in the water storage box 110 to achieve contact water absorption. As long as there is water in the water storage box 110, the water supply to the water absorbing component 112 can be met, and the remaining portion of the water absorbing component 112 is exposed to the outside of the water storage box 110, so that the outlet airflow of the fan 105 flows through the water absorbing component 112, thereby expanding the contact area with the airflow and improving the humidification effect.

[0082] See also Figure 6 , Figure 6 It is an air circulation diagram of a humidity control system in a refrigerator provided by an embodiment of the present invention. When the fan 105 is working, the air flow sucked in by the air inlet 113 passes through the water absorption component 112 and the ion sterilization component 107, and is discharged from the air outlet 114 to humidify the air in the storage room. The fan 105 can be a centrifugal fan or a vortex fan, and can be installed with its own volute through a fan bracket. The air outlet 114 is composed of a number of densely distributed small holes to allow the humidified air flow to diffuse freely and evenly as possible. A part of the air flow flowing through the ion sterilization component 107 simultaneously carries out charged water molecules, positive and negative ions, hydroxyl free radicals and other acting factors, so that while the humidity control system humidifies the air in the storage room, it also achieves the effects of ionizing water molecules, sterilizing the space and deodorizing the space, which helps to greatly inhibit the drying of fruits and vegetables stored in the storage room, while solving the problem of food corruption and greatly improving the freshness-keeping performance of the refrigerator.

[0083] See also Figure 7 , Figure 7 It is a schematic diagram of the installation position of a second humidity sensor in a refrigerator provided in an embodiment of the present invention. The second humidity sensor 106 is arranged at the air outlet 114 of the humidity control system, and is used to detect the outlet humidity value at the air outlet of the humidity control system. When the outlet humidity value detected by the second humidity sensor 106 does not reach a preset outlet humidity threshold, the operating status of the refrigerator door is obtained, and a water replenishment operation is performed according to the operating status of the door.

[0084] See also Figure 8 , Figure 8 : is a connection diagram of the controller provided by an embodiment of the present invention and other hardware devices. The controller described in the embodiment of the present invention is respectively connected to the humidity control system, the first humidity sensor, the second humidity sensor and the third humidity sensor. The controller can control the humidity control system to stop working when the compartment humidity value reaches a preset compartment humidity threshold, and can also control the compartment humidity value detected by the first humidity sensor, the outlet humidity value detected by the second humidity sensor and the ambient humidity value detected by the third humidity sensor.

[0085] Specifically, the controller according to the embodiment of the present invention is configured as follows:

[0086] In response to the water replenishment mode start-up operation, an initial water injection volume of the water replenishment mode is obtained, and a first preset water injection volume is calculated according to the initial water injection volume;

[0087] Filling the water storage box with water according to the first preset water filling amount, and controlling the operation of the humidity control system;

[0088] The compartment humidity value detected by the first humidity sensor is obtained, and when the compartment humidity value reaches a preset compartment humidity threshold, the humidity control system is controlled to stop working.

[0089] For example, see Fig. 9 , Fig. 9 It is the first working flow chart of the controller provided by the embodiment of the present invention, and the controller is configured to execute steps S11 to S18. When the user sets the refrigerator to the water replenishment mode, the initial water injection volume of the water replenishment mode is obtained from the database. The water replenishment mode can be divided into a trace water replenishment mode, a small amount of water replenishment mode and a large amount of water replenishment mode, etc. The database records the initial water injection volume required for different water replenishment modes; the first preset water injection volume is calculated according to the initial water injection volume, and the first preset water injection volume is the initial water injection volume of the preset proportion, for example: the first preset water injection volume = the initial water injection volume * 90%; the water injection operation is started according to the first preset water injection volume, and water is injected into the water replenishment box through the water injection pipeline, and then the water replenishment box is filled with water. Water is injected into the water storage box through the water replenishment box, and the humidity control system is controlled to operate, wherein the water injection pipeline is externally connected to household water; after the user sets the required humidity value of the refrigerator compartment, that is, the compartment humidity threshold, the refrigerator main control board obtains the first humidity sensor value, the first humidity sensor is arranged in the storage room of the refrigerator, and is used to obtain the compartment humidity value in the storage room, and then compares it with the preset compartment humidity threshold. When the compartment humidity value reaches the preset compartment humidity threshold, it is determined that the humidity inside the current box meets the requirements, and at this time, the humidity control system is controlled to stop working.

[0090] Specifically, the refrigerator also includes a flow meter, which is arranged in the box and is used to calculate the amount of water injected into the water storage box; then, the water injection operation includes: starting water injection, and obtaining the cumulative water injection amount calculated by the flow meter; when the cumulative water injection amount is less than a first preset water injection amount, continuing water injection; wherein the first preset water injection amount is a preset proportion of the initial water injection amount; when the cumulative water injection amount is greater than or equal to the first preset water injection amount, stopping water injection.

[0091] For example, see Fig.10 , Fig.10 is a second working flow chart of the controller provided by an embodiment of the present invention, and the controller is further configured to execute steps S21 to S25. After the water injection operation is started, water flows into the water replenishment box through the water injection pipeline, and the water replenishment box injects water into the water storage box. The cumulative water injection amount is calculated using a flow meter to ensure that the amount of water entering the water storage box meets the preset value and does not overflow the water storage box, and the cumulative water injection amount is compared with the first preset water injection amount. When the cumulative water injection amount is less than the first preset water injection amount, the water injection operation continues, and when the cumulative water injection amount is greater than or equal to the first preset water injection amount, the water injection operation is stopped.

[0092] Specifically, the controller is also configured to: when the compartment humidity value does not reach the preset compartment humidity threshold, obtain the outlet humidity value detected by the second humidity sensor; when the outlet humidity value reaches the preset outlet humidity threshold, continue to obtain the compartment humidity value detected by the first humidity sensor, and when the compartment humidity value reaches the preset compartment humidity threshold, control the humidity control system to stop working; when the outlet humidity value does not reach the preset outlet humidity threshold, obtain the operating status of the refrigerator door, and perform water replenishment operation according to the door operating status.

[0093] For example, see Fig.11 , Fig.11 It is the third working flow chart of the controller provided by the embodiment of the present invention, and the controller is further configured to execute steps S31 to S37. After obtaining the compartment humidity value in the storage room detected by the first humidity sensor, it is compared with the preset compartment humidity threshold. When the compartment humidity value does not reach the preset compartment humidity threshold, it is determined that the humidity inside the current cabinet does not meet the requirements. At this time, it is necessary to perform water replenishment operation according to the state of the refrigerator door, and obtain the second humidity sensor value. The second humidity sensor is arranged at the air outlet of the humidity control system, and is used to detect the outlet humidity value at the air outlet of the humidity control system, and compare it with the preset outlet humidity threshold. When the outlet humidity value does not reach the preset outlet humidity threshold, it is determined whether the refrigerator has a door opening action during the operation of the humidity control system, and the refrigerator door operation state is obtained. According to the operation state of the door, the corresponding water replenishment operation is performed, wherein the operation state and the door opening time of the door can be collected by the door opening and closing sensor installed on the door.

[0094] Specifically, the water replenishing operation according to the operating state of the refrigerator door includes: when it is detected that the refrigerator door is not opened or closed, calculating a second preset water injection amount, and performing a water replenishing operation according to the second preset water injection amount, and continuing to obtain the compartment humidity value detected by the first humidity sensor after the water replenishing operation is completed.

[0095] For example, see Fig.12 , Fig.12 is the fourth work flow chart of the controller provided by the embodiment of the present invention, and the controller is further configured to execute steps S41 to S47. When water is replenished according to the operating state of the refrigerator door, two different methods for calculating the required water replenishment amount are provided, wherein, when no door opening operation of the refrigerator is detected, the water storage box is replenished according to the second preset water injection amount, and the second preset water injection amount is the difference between the initial water injection amount and the first preset water injection amount; after the water replenishment operation is completed, the compartment humidity value detected by the first humidity sensor is continued to be obtained to determine whether the compartment humidity value reaches the preset compartment humidity threshold.

[0096] Specifically, the water replenishing operation according to the operating status of the door also includes: when it is detected that the door of the refrigerator is opened and closed, obtaining the ambient humidity value detected by the third humidity sensor, and performing the water replenishing operation according to the ambient humidity value, and continuing to obtain the compartment humidity value detected by the first humidity sensor after the water replenishing operation is completed.

[0097] For example, see Fig.13 , Fig.13 is a fifth work flow chart of the controller provided by an embodiment of the present invention, and the controller is further configured to execute steps S51 to S55. When it is detected that the refrigerator has a door opening operation, it means that the compartment humidity value of the refrigerator storage compartment is affected by the external environment, and it is necessary to detect the ambient humidity outside the refrigerator, obtain the third humidity sensor value, the third humidity sensor is arranged outside the refrigerator, and is used to obtain the ambient humidity value outside the refrigerator, and perform a water replenishment operation on the water storage box according to the relationship between the ambient humidity value and the compartment humidity value. After the water replenishment operation is completed, the compartment humidity value detected by the first humidity sensor is continued to be obtained to determine whether the compartment humidity value reaches the preset compartment humidity threshold.

[0098] Specifically, the water replenishment operation according to the ambient humidity value includes: calculating the humidity difference between the ambient humidity value and the humidity value in the compartment and the door opening time of the refrigerator; when the ambient humidity value is greater than the humidity value in the compartment, obtaining the required water replenishment amount according to the humidity difference and the door opening time, and performing a water replenishment operation on the water storage box; when the ambient humidity value is less than the humidity value in the compartment, obtaining the required water replenishment amount according to the humidity difference and the door opening time, and performing a water replenishment operation on the water storage box.

[0099] For example, see Fig.14 , Fig.14 It is a sixth working flow chart of the controller provided in an embodiment of the present invention, and the controller is further configured to execute steps S61 to S64. When it is detected that the refrigerator has a door opening operation, the door opening time of the refrigerator is accumulated, and the size of the ambient humidity value and the humidity value in the compartment is compared. When the ambient humidity value is greater than the humidity value in the compartment, the moisture outside diffuses into the compartment after the door is opened, and a part of the water vapor is automatically replenished, indicating that the required water replenishment amount at this time is less than the second preset water injection amount, and the humidity difference between the ambient humidity value and the humidity value in the compartment is calculated. The corresponding required water replenishment amount is obtained from the database according to the humidity difference and the door opening time. The database records the required water replenishment amount when the ambient humidity value is greater than the humidity value in the compartment; when the ambient humidity value is less than the humidity value in the compartment, the moisture in the compartment diffuses into the environment after the door is opened, and a part of the water vapor is lost, indicating that the required water replenishment amount at this time is greater than the second preset water injection amount, and the humidity difference between the ambient humidity value and the humidity value in the compartment is calculated. The corresponding required water replenishment amount is obtained from the database according to the humidity difference and the door opening time. The database records the required water replenishment amount when the ambient humidity value is less than the humidity value in the compartment; the water storage box is replenished according to the required water replenishment amount.

[0100] Furthermore, the refrigerator establishes a data connection with the client through a router or a cloud server. When the refrigerator and the client communicate through the router, the refrigerator and the client are close to each other, and the user can view the operation status (such as humidity status) or food storage status of the refrigerator placed in the kitchen in the living room or room, and can remotely control the water injector to start water injection, thereby realizing the user's remote manual humidification function. When the refrigerator and the client communicate through the cloud server, the refrigerator and the client are far apart, and the user can interact with the refrigerator through the APP installed in the client, and remote control of the refrigerator can also be realized.

[0101] Compared with the prior art, the refrigerator disclosed in the present invention determines the water replenishment mode of the refrigerator and calculates the initial water injection amount, obtains the humidity values ​​of the humidity control system and the inside and outside of the refrigerator through the humidity sensor of the humidity control system, the humidity sensor of the refrigerator room, and the ambient humidity sensor, and performs the water replenishment operation of the refrigerator according to the difference between the ambient humidity and the humidity of the room and the door opening time of the refrigerator. It can realize accurate automatic intelligent water replenishment, avoid the user's failure to reach the expected humidity value due to water omission, improve system reliability, and enhance user experience.

[0102] See also Fig.15 , Fig.15 The present invention is a flowchart of an automatic water replenishment method for a refrigerator provided by an embodiment of the present invention. The automatic water replenishment method for a refrigerator described in the embodiment of the present invention is implemented by a controller in the refrigerator. The refrigerator includes a cabinet, a cabinet door, and a humidity control system. At least one storage chamber is formed in the cabinet. The cabinet door is used to open and close the storage chamber. The humidity control system is used to increase the humidity of the storage chamber. The humidity control system includes a water storage box, a water absorption component, a water injection pipeline, a fan, and an air outlet. The humidity control system injects water into the water replenishment box through the water injection pipeline, and the water in the water storage box is replenished in real time through the water replenishment box. The water absorption component is arranged close to the water storage box, and the fan collects the moisture generated by the water in the water absorption component into the storage chamber through the air outlet. A first humidity sensor is arranged in the storage chamber, and is used to obtain the compartment humidity value in the storage chamber. Then, the automatic water replenishment method for the refrigerator includes:

[0103] S1. In response to a water replenishment mode start-up operation, obtaining an initial water injection volume of the water replenishment mode, and calculating a first preset water injection volume according to the initial water injection volume;

[0104] S2, filling the water storage box with water according to the first preset water filling amount, and controlling the operation of the humidity control system;

[0105] S3. Acquire the compartment humidity value detected by the first humidity sensor, and when the compartment humidity value reaches a preset compartment humidity threshold, control the humidity control system to stop working.

[0106] Exemplarily, when the user sets the refrigerator to the water replenishment mode, the initial water injection volume of the water replenishment mode is obtained from the database, and the water replenishment mode can be divided into a trace water replenishment mode, a small amount of water replenishment mode and a large amount of water replenishment mode, etc. The database records the initial water injection volume required in different water replenishment modes; the first preset water injection volume is calculated according to the initial water injection volume, and the first preset water injection volume is the initial water injection volume of the preset ratio, for example: the first preset water injection volume = the initial water injection volume * 90%; the water injection operation is started according to the first preset water injection volume, and water is injected into the water replenishment box through the water injection pipeline , water is injected into the water storage box through the water replenishment box, and the humidity control system is controlled to operate, wherein the water injection pipeline is externally connected to household water; when the user sets the required humidity value of the refrigerator compartment, that is, the compartment humidity threshold, the refrigerator main control board obtains the first humidity sensor value, the first humidity sensor is arranged in the storage room of the refrigerator, and is used to obtain the compartment humidity value in the storage room, and then compares it with the preset compartment humidity threshold. When the compartment humidity value reaches the preset compartment humidity threshold, it is determined that the humidity inside the current box meets the requirement, and at this time, the humidity control system is controlled to stop working.

[0107] Specifically, the water injection operation includes: starting water injection and obtaining the cumulative water injection volume calculated by the flow meter; when the cumulative water injection volume is less than a first preset water injection volume, continuing water injection; wherein the first preset water injection volume is a preset proportion of the initial water injection volume; when the cumulative water injection volume is greater than or equal to the first preset water injection volume, stopping water injection.

[0108] Exemplarily, after the water injection operation is started, water flows into the water replenishment box through the water injection pipeline, and the water replenishment box injects water into the water storage box. The cumulative water injection amount is calculated using a flow meter to ensure that the amount of water entering the water storage box meets the preset value and does not overflow the water storage box. The cumulative water injection amount is compared with a first preset water injection amount. When the cumulative water injection amount is less than the first preset water injection amount, the water injection operation continues. When the cumulative water injection amount is greater than or equal to the first preset water injection amount, the water injection operation is stopped.

[0109] Specifically, the method also includes: when the compartment humidity value does not reach a preset compartment humidity threshold, obtaining the outlet humidity value detected by the second humidity sensor; when the outlet humidity value reaches a preset humidity control system working humidity threshold, continuing to obtain the compartment humidity value detected by the first humidity sensor, and when the compartment humidity value reaches the preset compartment humidity threshold, controlling the humidity control system to stop working; when the outlet humidity value does not reach the preset humidity control system working humidity threshold, obtaining the operating status of the refrigerator door, and performing a water replenishment operation according to the door operating status.

[0110] Exemplarily, after obtaining the compartment humidity value in the storage room detected by the first humidity sensor, it is compared with the preset compartment humidity threshold. When the compartment humidity value does not reach the preset compartment humidity threshold, it is determined that the humidity inside the current cabinet does not meet the requirement. At this time, it is necessary to perform water replenishment operation according to the state of the refrigerator door, and obtain the second humidity sensor value. The second humidity sensor is arranged at the air outlet of the humidity control system, and is used to detect the outlet air humidity value at the air outlet of the humidity control system, and compare it with the preset outlet air humidity threshold. When the outlet air humidity value does not reach the preset outlet air humidity threshold, it is determined whether the refrigerator has a door opening action during the operation of the humidity control system, and the operating state of the refrigerator door is obtained, and corresponding water replenishment operation is performed according to the operating state of the door, wherein the operating state and opening time of the door can be collected by a door opening and closing sensor installed on the door.

[0111] Specifically, the water replenishing operation according to the operating state of the refrigerator door includes: when it is detected that the refrigerator door is not opened or closed, calculating a second preset water injection amount, and performing a water replenishing operation according to the second preset water injection amount, and continuing to obtain the compartment humidity value detected by the first humidity sensor after the water replenishing operation is completed; wherein the second preset water injection amount is the difference between the initial water injection amount and the first preset water injection amount.

[0112] Exemplarily, when water is replenished according to the operating status of the refrigerator door, two different methods for calculating the required water replenishment amount are provided, wherein, when no door opening operation of the refrigerator is detected, the water storage box is replenished according to a second preset water injection amount, and the second preset water injection amount is the difference between the initial water injection amount and the first preset water injection amount; after the water replenishment operation is completed, the compartment humidity value detected by the first humidity sensor continues to be obtained to determine whether the compartment humidity value reaches the preset compartment humidity threshold.

[0113] Specifically, the water replenishing operation according to the operating status of the door also includes: when it is detected that the door of the refrigerator is opened and closed, obtaining the ambient humidity value detected by the third humidity sensor, and performing the water replenishing operation according to the ambient humidity value, and continuing to obtain the compartment humidity value detected by the first humidity sensor after the water replenishing operation is completed.

[0114] Exemplarily, when it is detected that the refrigerator door is opened, it means that the compartment humidity value of the refrigerator storage room is affected by the external environment, and it is necessary to detect the ambient humidity outside the refrigerator and obtain the third humidity sensor value. The third humidity sensor is arranged outside the refrigerator and is used to obtain the ambient humidity value outside the refrigerator. According to the relationship between the ambient humidity value and the compartment humidity value, the water storage box is replenished with water. After the water replenishment operation is completed, the compartment humidity value detected by the first humidity sensor is continued to be obtained to determine whether the compartment humidity value reaches the preset compartment humidity threshold.

[0115] Specifically, the water replenishment operation according to the ambient humidity value includes: calculating the humidity difference between the ambient humidity value and the humidity value in the compartment and the door opening time of the refrigerator; when the ambient humidity value is greater than the humidity value in the compartment, obtaining the required water replenishment amount according to the humidity difference and the door opening time, and performing a water replenishment operation on the water storage box; when the ambient humidity value is less than the humidity value in the compartment, obtaining the required water replenishment amount according to the humidity difference and the door opening time, and performing a water replenishment operation on the water storage box.

[0116] Exemplarily, when it is detected that the refrigerator has a door opening operation, the refrigerator door opening time is accumulated, and the ambient humidity value is compared with the humidity value in the compartment. When the ambient humidity value is greater than the humidity value in the compartment, the moisture outside diffuses into the compartment after the door is opened, and a part of the water vapor is automatically replenished, indicating that the required water replenishment amount at this time is less than the second preset water injection amount, and the humidity difference between the ambient humidity value and the humidity value in the compartment is calculated. The corresponding required water replenishment amount is obtained from the database according to the humidity difference and the door opening time, and the database records the required water replenishment amount when the ambient humidity value is greater than the humidity value in the compartment; when the ambient humidity value is less than the humidity value in the compartment, the moisture in the compartment diffuses into the environment after the door is opened, and a part of the water vapor is lost, indicating that the required water replenishment amount at this time is greater than the second preset water injection amount, and the humidity difference between the ambient humidity value and the humidity value in the compartment is calculated. The corresponding required water replenishment amount is obtained from the database according to the humidity difference and the door opening time, and the database records the required water replenishment amount when the ambient humidity value is less than the humidity value in the compartment; the water storage box is replenished according to the required water replenishment amount.

[0117] Compared with the prior art, the automatic water replenishment method for refrigerators disclosed in the present invention determines the water replenishment mode of the refrigerator and calculates the initial water injection amount, obtains the humidity values ​​of the humidity control system and the inside and outside of the refrigerator through the humidity sensor of the humidity control system, the humidity sensor of the refrigerator room, and the ambient humidity sensor, and performs the water replenishment operation of the refrigerator according to the difference between the ambient humidity and the humidity of the room and the door opening time of the refrigerator. It can realize accurate automatic intelligent water replenishment, avoid the user's failure to reach the expected humidity value due to water omission, improve system reliability, and enhance user experience.

[0118] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A refrigerator, characterized in that: include: a box body, in which at least one storage chamber is formed; A door, used for opening and closing the storage chamber; A humidity control system is provided in the box body and is used to increase the humidity of the storage chamber. The humidity control system includes a water replenishment box, a water storage box, a water absorbing component, a water injection pipeline, a fan, and an air outlet. The humidity control system injects water into the water replenishment box through the water injection pipeline, and replenishes the water in the water storage box in real time through the water replenishment box. The water absorbing component is arranged close to the water storage box, and the fan collects the moisture generated by the water in the water absorbing component into the storage chamber through the air outlet. A first humidity sensor is disposed in the storage room and is used to obtain a humidity value of a compartment in the storage room; The controller is configured as: In response to the water replenishment mode start-up operation, an initial water injection volume of the water replenishment mode is obtained, and a first preset water injection volume is calculated according to the initial water injection volume; Filling the water storage box with water according to the first preset water filling amount, and controlling the operation of the humidity control system; The compartment humidity value detected by the first humidity sensor is obtained, and when the compartment humidity value reaches a preset compartment humidity threshold, the humidity control system is controlled to stop working.

2. The refrigerator according to claim 1, characterized in that: The refrigerator further comprises: A flow meter, disposed in the box, for calculating the amount of water injected into the water storage box; Then, the water injection operation includes: Start water injection and obtain the cumulative water injection volume calculated by the flow meter; When the accumulated water injection volume is less than the first preset water injection volume, continue to inject water; wherein the first preset water injection volume is a preset proportion of the initial water injection volume; When the accumulated water injection amount is greater than or equal to the first preset water injection amount, water injection is stopped.

3. The refrigerator according to claim 1, characterized in that: The refrigerator further comprises: A second humidity sensor is provided at the air outlet of the humidity control system and is used to detect the air outlet humidity value at the air outlet of the humidity control system; Then, the controller is further configured to: When the compartment humidity value does not reach a preset compartment humidity threshold, obtaining an outlet humidity value detected by the second humidity sensor; When the outlet humidity value reaches a preset outlet humidity threshold, continue to obtain the compartment humidity value detected by the first humidity sensor, and when the compartment humidity value reaches a preset compartment humidity threshold, control the humidity control system to stop working; When the air outlet humidity value does not reach a preset air outlet humidity threshold, the door operation state of the refrigerator is obtained, and a water replenishment operation is performed according to the door operation state.

4. The refrigerator according to claim 3, characterized in that: The refrigerator further comprises: A third humidity sensor is provided outside the refrigerator and is used to obtain the ambient humidity value outside the refrigerator; Then, the water replenishment operation is performed according to the operating state of the door, including: When it is detected that the refrigerator door is not opened or closed, a second preset water injection amount is calculated, and a water replenishment operation is performed according to the second preset water injection amount. After the water replenishment operation is completed, the compartment humidity value detected by the first humidity sensor is continued to be obtained; wherein the second preset water injection amount is the difference between the initial water injection amount and the first preset water injection amount.

5. The refrigerator according to claim 4, characterized in that: The water replenishment operation according to the operating state of the door further includes: When it is detected that the door of the refrigerator is opened or closed, the ambient humidity value detected by the third humidity sensor is obtained, and a water replenishment operation is performed according to the ambient humidity value. After the water replenishment operation is completed, the compartment humidity value detected by the first humidity sensor is continued to be obtained.

6. The refrigerator according to claim 5, characterized in that: The water replenishment operation according to the ambient humidity value includes: Calculate the humidity difference between the ambient humidity value and the indoor humidity value and the door opening time of the refrigerator; When the ambient humidity value is greater than the indoor humidity value, the required water replenishment amount is obtained according to the humidity difference and the door opening time, and the water storage box is replenished with water; When the ambient humidity value is less than the indoor humidity value, the required water replenishment amount is obtained according to the humidity difference and the door opening time, and the water storage box is replenished with water.

7. A method for automatically replenishing water for a refrigerator, characterized in that: The refrigerator comprises a box body, a box door and a humidity control system, at least one storage chamber is formed in the box body, the box door is used to open and close the storage chamber, the humidity control system is used to increase the humidity of the storage chamber, the humidity control system comprises a water storage box, a water absorption component, a water injection pipeline, a fan, and an air outlet, the humidity control system injects water into the water replenishment box through the water injection pipeline, and the water in the water storage box is replenished in real time through the water replenishment box, the water absorption component is arranged close to the water storage box, and the fan collects the moisture generated by the water in the water absorption component into the storage chamber through the air outlet; A first humidity sensor is disposed in the storage room and is used to obtain a humidity value of a compartment in the storage room; Then, the automatic water replenishment method of the refrigerator includes: In response to the water replenishment mode start-up operation, an initial water injection volume of the water replenishment mode is obtained, and a first preset water injection volume is calculated according to the initial water injection volume; Filling the water storage box with water according to the first preset water filling amount, and controlling the operation of the humidity control system; The compartment humidity value detected by the first humidity sensor is obtained, and when the compartment humidity value reaches a preset compartment humidity threshold, the humidity control system is controlled to stop working.

8. The automatic water replenishment method for a refrigerator according to claim 7, characterized in that: The refrigerator further comprises: A flow meter, disposed in the box, for calculating the amount of water injected into the water storage box; Then, the water injection operation includes: Start water injection and obtain the cumulative water injection volume calculated by the flow meter; When the accumulated water injection volume is less than the first preset water injection volume, continue to inject water; wherein the first preset water injection volume is a preset proportion of the initial water injection volume; When the accumulated water injection amount is greater than or equal to the first preset water injection amount, water injection is stopped.

9. The automatic water replenishment method for a refrigerator according to claim 7, characterized in that: The refrigerator further comprises: A second humidity sensor is provided at the air outlet of the humidity control system and is used to detect the air outlet humidity value at the air outlet of the humidity control system; Then, the method further comprises: When the compartment humidity value does not reach a preset compartment humidity threshold, obtaining an outlet humidity value detected by the second humidity sensor; When the outlet humidity value reaches the preset humidity control system working humidity threshold, continue to obtain the compartment humidity value detected by the first humidity sensor, and when the compartment humidity value reaches the preset compartment humidity threshold, control the humidity control system to stop working; When the air outlet humidity value does not reach a preset humidity control system operating humidity threshold, the refrigerator door operation state is obtained, and a water replenishment operation is performed according to the refrigerator door operation state.

10. The automatic water replenishment method for a refrigerator according to claim 9, characterized in that: The refrigerator further comprises: A third humidity sensor is provided outside the refrigerator and is used to obtain the ambient humidity value outside the refrigerator; Then, the water replenishment operation is performed according to the operating state of the door, including: When it is detected that the refrigerator door is not opened or closed, a second preset water injection amount is calculated, and a water replenishment operation is performed according to the second preset water injection amount. After the water replenishment operation is completed, the compartment humidity value detected by the first humidity sensor is continued to be obtained; wherein the second preset water injection amount is the difference between the initial water injection amount and the first preset water injection amount.

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