Refrigerator and weight sensor power-on and power-off control method thereof

Abstract

The invention discloses a refrigerator and a weight sensor power-on and power-off control method thereof.Detection data sent by a door opening and closing state detection device is obtained, and when the detection data is that a target door is opened, all weight sensors of a storage chamber or a door shelf corresponding to the target door are controlled to be powered on; and when the detection data is that the target box door is closed, controlling all weight sensors of the storage chamber or the door shelf corresponding to the target box door to be powered off. In the embodiment of the invention, the weight sensor stops electrifying under the condition that the door of the refrigerator is closed, so that extra power consumption is avoided, and the power consumption is reduced. Besides, the weight sensors can be bound with the food materials one by one, the weight change of the food materials can be monitored, the food material change operation of the user can be received, the binding relation between the weight sensors and the food materials can be updated in time, and the situation of binding errors is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a refrigerator and a power on / off control method for a weight sensor thereof. Background Art

[0002] Refrigerators, as household appliances for storing food at low temperatures, are equipped with a variety of internal food containers, such as drawers, shelves, and bottle racks. With the development and upgrading of intelligent home appliances, consumers are demanding a refrigerator with a larger internal storage capacity for various foods. Currently, there are products on the market that provide this functionality, such as multiple weight sensors that monitor the weight of food. However, existing refrigerators equipped with weight sensors only operate when the weight sensors are turned on. While this can accurately monitor changes in food weight, it increases the refrigerator's power consumption and is not energy-efficient. Summary of the Invention

[0003] The purpose of the embodiment of the present invention is to provide a refrigerator and a method for controlling power on and off of a weight sensor thereof. When the refrigerator door is closed, the weight sensor stops being energized, which does not cause additional power consumption and saves power consumption.

[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 box door is provided at the opening of the storage chamber and is used to open and close the storage chamber. A plurality of door shelves are provided inside the box door.

[0007] at least one weight sensor, disposed in the box, for detecting the weight of food stored in the refrigerator;

[0008] A door opening and closing state detection device is provided on the door of the storage room or door shelf where the weight sensor is distributed, and is used to detect the opening and closing of the door;

[0009] The controller is configured as:

[0010] Acquiring detection data sent by the door switch state detection device;

[0011] When the detection data indicates that the target door is opened, all weight sensors of the storage room or door shelf corresponding to the target door are powered on;

[0012] When the detection data indicates that the target door is closed, all weight sensors controlling the storage chamber or door shelf corresponding to the target door are powered off.

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

[0014] A display screen is provided outside the door, for displaying refrigerator operating parameters and receiving user touch operations;

[0015] The controller is further configured to:

[0016] When any weight sensor is powered on, obtaining the real-time weight detected by the weight sensor;

[0017] The real-time weight of the weight sensor is displayed on the display screen.

[0018] As an improvement to the above solution, displaying the real-time weight of the weight sensor on the display screen includes:

[0019] When only one weight sensor is provided in the storage room or the door shelf, the real-time weight of the weight sensor is displayed on the display screen;

[0020] When at least two weight sensors are provided in the storage chamber or the door shelf, the average weight of the at least two weight sensors is displayed on the display screen.

[0021] As an improvement to the above solution, the controller is further configured to:

[0022] When detecting that the target weight sensor switches from a power-on state to a power-off state, obtaining the real-time weight detected by the target weight sensor when the target weight sensor is in the power-on state;

[0023] The last real-time weight detected by the target weight sensor before power failure is used as the target weight;

[0024] The weight of the target ingredient in the ingredient management system is updated according to the target weight; wherein the target ingredient is pre-bound to the target weight sensor.

[0025] As an improvement to the above solution, after updating the weight of the target ingredient in the ingredient management system according to the target weight, the controller is further configured to:

[0026] Displaying the target ingredient and the corresponding target weight on a display screen, as well as the storage compartment or door shelf where the target ingredient is located;

[0027] When a target ingredient change operation issued by a user is received, the binding relationship between the target ingredient and the target weight sensor is updated according to the target ingredient change operation.

[0028] To achieve the above-mentioned purpose, an embodiment of the present invention further provides a method for controlling power on and off of a weight sensor of a refrigerator, comprising:

[0029] Acquire detection data sent by the refrigerator door switch status detection device;

[0030] When the detection data indicates that the target door is opened, all weight sensors of the storage room or door shelf corresponding to the target door are powered on;

[0031] When the detection data indicates that the target door is closed, all weight sensors controlling the storage chamber or door shelf corresponding to the target door are powered off.

[0032] As an improvement to the above solution, the method further includes:

[0033] When any weight sensor is powered on, obtaining the real-time weight detected by the weight sensor;

[0034] The real-time weight of the weight sensor is displayed on the display screen.

[0035] As an improvement to the above solution, displaying the real-time weight of the weight sensor on the display screen includes:

[0036] When only one weight sensor is provided in the storage room or the door shelf, the real-time weight of the weight sensor is displayed on the display screen;

[0037] When at least two weight sensors are provided in the storage chamber or the door shelf, the average weight of the at least two weight sensors is displayed on the display screen.

[0038] As an improvement to the above solution, the method further includes:

[0039] When detecting that the target weight sensor switches from a power-on state to a power-off state, obtaining the real-time weight detected by the target weight sensor when the target weight sensor is in the power-on state;

[0040] The last real-time weight detected by the target weight sensor before power failure is used as the target weight;

[0041] The weight of the target ingredient in the ingredient management system is updated according to the target weight; wherein the target ingredient is pre-bound to the target weight sensor.

[0042] As an improvement to the above solution, after updating the weight of the target ingredient in the ingredient management system according to the target weight, the method further includes:

[0043] Displaying the target ingredient and the corresponding target weight on a display screen, as well as the storage compartment or door shelf where the target ingredient is located;

[0044] When a target ingredient change operation issued by a user is received, the binding relationship between the target ingredient and the target weight sensor is updated according to the target ingredient change operation.

[0045] Compared to the prior art, the refrigerator and its weight sensor power on / off control method disclosed in the present invention obtains the detection data sent by the door switch status detection device. When the detection data indicates that the target door is opened, all weight sensors of the storage chamber or door shelf corresponding to the target door are controlled to be powered on; when the detection data indicates that the target door is closed, all weight sensors of the storage chamber or door shelf corresponding to the target door are controlled to be powered off. In an embodiment of the present invention, the weight sensor of the refrigerator stops being powered on when the door is closed, which does not cause additional power consumption and saves power. In addition, the weight sensor can be bound to the food one by one, can monitor the weight change of the food, and can receive the user's food change operation, and timely update the binding relationship between the weight sensor and the food to avoid binding errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 1 is a schematic diagram of the external structure of a refrigerator provided by an embodiment of the present invention;

[0047] Figure 2 This is a schematic diagram of the internal structure of a refrigerator provided by an embodiment of the present invention;

[0048] Figure 3 1 is a schematic structural diagram of a refrigeration system in a refrigerator provided by an embodiment of the present invention;

[0049] Figure 4 1 is a schematic diagram of the arrangement of a weight sensor provided in an embodiment of the present invention;

[0050] Figure 5 This is a first working flow diagram of a controller in a refrigerator provided by an embodiment of the present invention;

[0051] Figure 6 This is a second working flow diagram of a controller in a refrigerator provided by an embodiment of the present invention;

[0052] Figure 7 This is a third working flow diagram of a controller in a refrigerator provided by an embodiment of the present invention;

[0053] Figure 8 This is a fourth working flow diagram of a controller in a refrigerator provided by an embodiment of the present invention;

[0054] Figure 9 is a fifth working flow diagram of a controller in a refrigerator provided by an embodiment of the present invention;

[0055] Figure 10The present invention provides a flowchart of a method for controlling power on and off of a refrigerator weight sensor.

[0056] Among them, 100, refrigerator; 10, display screen; 11, refrigerator compartment; 12, freezer compartment; 1, compressor; 2, evaporator; 3, capillary tube; 4, condenser; 101, right door of refrigerator compartment; 102, left door of refrigerator compartment; 103, refrigerator compartment shelf; 104, refrigerator drawer; 1011, first door shelf of right door; 1012, second door shelf of right door; 1021, first door shelf of left door; 1022, second door shelf of left door; 201, first weight sensor; 202, second weight sensor; 203, third weight sensor; 204, fourth weight sensor. DETAILED DESCRIPTION

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0058] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0059] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features specified as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0060] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0061] See also Figure 1 , Figure 1 It is a schematic diagram of the external structure of a refrigerator 100 provided in an embodiment of the present invention. The refrigerator 100 of this embodiment has an approximately rectangular parallelepiped shape. The refrigerator includes a box body that defines a storage space and a plurality of door bodies provided at the opening of the box body, wherein the door body includes a door body shell located on the outside of the box body, a door body liner located on the inside of 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 material. The box body is provided with a cavity, wherein the cavity includes a component storage cavity for placing components in the refrigerator, such as a press cabin, etc., and also includes a storage space for storing food, etc. The door of the refrigerator is provided with a display screen 10, and the display screen is used to display refrigerator operating parameters and receive user touch operations.

[0062] See also Figure 2 , Figure 2 This is a schematic diagram of the internal structure of a refrigerator provided by an embodiment of the present invention. The storage space can be divided into multiple storage rooms. The storage rooms can be configured as a refrigerator 11 and a freezer 12 according to different uses. They can also include a variable temperature room, a vacuum drawer, a moisturizing drawer, etc. Each storage room corresponds to one or more doors, for example, Figure 2 The storage compartment in the middle and upper part is provided with a double-door body. The door body can be pivotally arranged at the opening of the box body, and can also be opened in a drawer-like manner to realize drawer-like storage. Figure 3 , Figure 3The schematic diagram of the structure of the refrigeration system in the refrigerator 100 provided in the embodiment of the present invention, the refrigeration system includes a compressor 1, an evaporator 2, a drying filter (not shown in the figure), a capillary tube 3, a condenser 4 and a gas-liquid separator (not shown in the figure). The working process of the refrigeration system includes a compression process, a condensation process, a throttling process and an evaporation process. The compression process is: plug in the power cord of the refrigerator, when the contacts of the thermostat are connected, the compressor 1 starts to work, the low-temperature, low-pressure refrigerant is sucked into the compressor 1, and is compressed into a high-temperature, high-pressure superheated gas in the cylinder of the compressor 1 and then discharged into the condenser 4; the condensation process is: the high-temperature, high-pressure refrigerant gas dissipates heat through the condenser 4, the temperature continues to drop, and is gradually cooled to a saturated vapor at room temperature and high pressure, and is further cooled to a saturated liquid, and the temperature no longer drops. The temperature at this time is called the condensation temperature, and the pressure of the refrigerant remains almost unchanged during the entire condensation process; the throttling process is as follows ... The process is as follows: the saturated refrigerant liquid after condensation is filtered out of moisture and impurities by a drying filter and then flows into the capillary tube 3, through which it is throttled and depressurized, and the refrigerant becomes wet steam at room temperature and low pressure; the evaporation process is as follows: the wet steam at room temperature and low pressure begins to absorb heat and vaporize in the evaporator 2, which not only reduces the temperature of the evaporator 2 and its surroundings, but also turns the refrigerant into a low-temperature, low-pressure gas. The refrigerant coming out of the evaporator 2 passes through the gas-liquid separator and returns to the compressor 1 again, repeating the above process to transfer the heat in the refrigerator to the air outside the box, thereby achieving the purpose of refrigeration.

[0063] See also Figure 4 , Figure 4 This is a schematic diagram of the arrangement of the weight sensor provided in an embodiment of the present invention. It can be understood that Figure 4 The arrangement of the shelves, door shelves, and weight sensors in the middle storage compartment is for illustrative purposes only and is not intended to be limiting. In practical applications, these arrangements may be made in accordance with actual needs. Assume that the refrigerator compartment 11 includes two doors, namely a right door 101 and a left door 102. The refrigerator compartment 11 is provided with three shelves 103 and two refrigerated drawers 104 at the bottom. A first right door shelf 1011 and a second right door shelf 1012 are provided within the right door 101. A first left door shelf 1021 and a second left door shelf 1022 are provided within the left door 102. Among them, the first weight sensor 201 and the second weight sensor 202 are respectively arranged under the first shelf and the second shelf, the third weight sensor 203 is arranged in the refrigerated drawer on the left, and the fourth weight sensor 204 is arranged in the second door shelf 1012 of the right door. Each weight sensor detects the weight of the food in its position, such as the first weight sensor 201 detects the weight of the food placed on the first shelf.

[0064] Specifically, the refrigerator is further provided with a door switch status detection device, which is installed on the door of the storage compartment or door shelf where the weight sensor is located, and is used to detect the opening and closing of the door. If a weight sensor is installed in the refrigerator compartment but not in the freezer compartment, the door switch status detection device only needs to be installed at the corresponding position of the refrigerator compartment door, and does not need to be installed in the freezer compartment.

[0065] Specifically, the controller in the refrigerator is configured to: obtain the detection data sent by the door switch status detection device; when the detection data shows that the target door is opened, control all the weight sensors of the storage room or door shelf corresponding to the target door to be powered on; when the detection data shows that the target door is closed, control all the weight sensors of the storage room or door shelf corresponding to the target door to be powered off.

[0066] For example, see Figure 5 , Figure 5 This is a first working flow diagram of a controller in a refrigerator provided by an embodiment of the present invention. The controller is configured to execute steps S11 to S15. The description is given by taking a weight sensor installed in a refrigerator as an example. When the refrigerator is running, the door switch state detection device is also started to monitor the opening state of the refrigerator door. Figure 4 As shown, since the refrigerating chamber 11 includes a right door 101 and a left door 102 at this time, when the user uses the refrigerator, he may only need to open one side of the door, or open both doors at the same time. For the weight sensors arranged in the storage chamber, such as the first weight sensor 201, the second weight sensor 202 and the third weight sensor 203, since these weight sensors are arranged in shelves or drawers, as long as it is detected that one of the doors is opened, these weight sensors are controlled to be powered on, and when both doors are closed, these weight sensors are controlled to be powered off. For the fourth weight sensor 204 set on the door shelf 1012, since when the user takes out / stores items on the door shelf 1012, it has no effect on the opening and closing of the left door 102. Therefore, for the fourth weight sensor 204 set on the door shelf, it is only when it detects that the target door (right door 101) where it is located is opened that the fourth weight sensor 204 is controlled to be powered on, and it is only when it detects that the target door (right door 101) where it is located is closed that the fourth weight sensor 204 is controlled to be powered off.

[0067] Specifically, the controller is further configured to: when any weight sensor is powered on, obtain the real-time weight detected by the weight sensor; and display the real-time weight of the weight sensor on the display screen.

[0068] For example, see Figure 6 , Figure 6This is a second working flow chart of a controller in a refrigerator provided by an embodiment of the present invention. After executing step S14, the controller is further configured to execute steps S16 to S17. If the user only opens the right door 101 at this time, the controller only needs to control the fourth weight sensor 204 to be powered on. Since the user may not take out or add food from the door shelf 1012 at this time, the weight change of the fourth weight sensor 204 is monitored, and the real-time weight of the fourth weight sensor 204 is displayed on the display screen, so that the user can know the weight change of the fourth weight sensor 204 at this time. It can be understood that when the real-time weight of the fourth weight sensor 204 is displayed on the display screen, the location and ID of the fourth weight sensor 204 are also displayed synchronously. For example, the location is the door shelf 1012 below the right door 101, which can be displayed in combination with a three-dimensional legend. The ID is the number of the fourth weight sensor 204, such as A0004. At the same time, the food information stored on the door shelf is also displayed. This food information can be stored in the food management system when the user puts the food into the door shelf 1012.

[0069] Specifically, displaying the real-time weight of the weight sensor on the display screen includes: when only one weight sensor is set in the storage room or the door shelf, displaying the real-time weight of the weight sensor on the display screen; when only at least two weight sensors are set in the storage room or the door shelf, displaying the average weight of at least two weight sensors on the display screen.

[0070] For example, see Figure 7 , Figure 7 This is the third workflow diagram of a refrigerator controller provided by an embodiment of the present invention. Step S17 specifically includes steps S171 to S173. When the real-time weight of the fourth weight sensor 204 is obtained, if only one fourth weight sensor 204 is installed in the door shelf 1012, the real-time weight detected by the fourth weight sensor 204 is directly obtained and displayed on the display screen. If two or more fourth weight sensors 204 are installed in the door shelf 1012, the real-time weight detected by these fourth weight sensors 204 is averaged to obtain the average weight, and the average weight is displayed on the display screen. Similarly, for the first shelf in the refrigerating chamber 11, if only one first weight sensor 201 is installed in the first shelf, the real-time weight detected by this first weight sensor 201 is directly obtained and displayed on the display screen. If two or more first weight sensors 201 are installed in the first shelf, the real-time weight detected by these first weight sensors 201 is averaged to obtain the average weight, and the average weight is displayed on the display screen.

[0071] Specifically, the controller is also configured to: when detecting that the target weight sensor switches from a power-on state to a power-off state, obtain the real-time weight detected by the target weight sensor when it is powered on; use the last real-time weight detected by the target weight sensor before power off as the target weight; update the weight of the target ingredient in the ingredient management system according to the target weight; wherein the target ingredient is pre-bound to the target weight sensor.

[0072] For example, see Figure 8 , Figure 8 This is a fourth workflow diagram of a controller in a refrigerator provided by an embodiment of the present invention. After executing step S14, the controller is further configured to execute steps S21 to S24. The target weight sensor is a weight sensor that has established a binding relationship with the food in advance. If this target weight sensor is the fourth weight sensor 204, when the user needs to place food A on the door shelf 1012 under the right door 101, the display screen can be operated to realize the binding relationship between the fourth weight sensor 204 and food A. When it is detected that the fourth weight sensor 204 switches from the power-on state to the power-off state, it means that the user has opened the right door 101 at this time, and may have taken out food A placed on the door shelf 1012, or continued to add food A. The last real-time weight detected by the fourth weight sensor 204 before power failure is used as the target weight, and the weight of food A in the food management system is updated according to the target weight.

[0073] Specifically, after updating the weight of the target ingredient in the ingredient management system according to the target weight, the controller is also configured to: display the target ingredient and the corresponding target weight on a display screen, and display the storage room or door shelf where the target ingredient is located; when receiving a target ingredient change operation issued by the user, update the binding relationship between the target ingredient and the target weight sensor according to the target ingredient change operation.

[0074] For example, see Figure 9 , Figure 9This is the fifth workflow diagram of a controller in a refrigerator provided by an embodiment of the present invention. After executing step S24, the controller is further configured to execute steps S25 to S27. After updating the weight of ingredient A in the ingredient management system according to the target weight, the ingredient A and the corresponding target weight are displayed on the display screen, as well as the storage room or door shelf where ingredient A is located. If the user replaces the ingredient placed on the door shelf 1012 at this time, the real-time weight detected by the fourth weight sensor 204 is actually the weight of ingredient B. This corresponding relationship needs to be changed to ingredient B. Therefore, the user can be prompted to manually change the binding relationship between ingredient B and the fourth weight sensor 204. When the target ingredient change operation issued by the user is received, a binding relationship is established between ingredient B and the fourth weight sensor 204.

[0075] In an embodiment of the present invention, the weight sensor can be bound one-to-one with the food, can monitor the weight changes of the food, and can receive the user's ingredient change operation, and timely update the binding relationship between the weight sensor and the food to avoid binding errors.

[0076] Compared to the prior art, the refrigerator disclosed in the present invention obtains detection data sent by a door switch status detection device. When the detection data indicates that a target door is open, all weight sensors in the storage compartment or door shelf corresponding to the target door are powered on; when the detection data indicates that the target door is closed, all weight sensors in the storage compartment or door shelf corresponding to the target door are powered off. In this embodiment of the present invention, when the refrigerator door is closed, the weight sensors are de-energized, eliminating additional power consumption and saving energy.

[0077] See also Figure 10 , Figure 10 This is a flow chart of a method for controlling power on and off of a weight sensor of a refrigerator provided by an embodiment of the present invention. The method is executed by a controller in the refrigerator, and the method includes:

[0078] S1. Acquire detection data sent by a refrigerator door switch status detection device;

[0079] S2. When the detection data indicates that the target door is opened, all weight sensors of the storage room or door shelf corresponding to the target door are powered on;

[0080] S3. When the detection data indicates that the target door is closed, all weight sensors of the storage room or door shelf corresponding to the target door are powered off.

[0081] Specifically, the method further includes:

[0082] When any weight sensor is powered on, obtaining the real-time weight detected by the weight sensor;

[0083] The real-time weight of the weight sensor is displayed on the display screen.

[0084] Specifically, displaying the real-time weight of the weight sensor on the display screen includes:

[0085] When only one weight sensor is provided in the storage room or the door shelf, the real-time weight of the weight sensor is displayed on the display screen;

[0086] When at least two weight sensors are provided in the storage chamber or the door shelf, the average weight of the at least two weight sensors is displayed on the display screen.

[0087] Specifically, the method further includes:

[0088] When detecting that the target weight sensor switches from a power-on state to a power-off state, obtaining the real-time weight detected by the target weight sensor when the target weight sensor is in the power-on state;

[0089] The last real-time weight detected by the target weight sensor before power failure is used as the target weight;

[0090] The weight of the target ingredient in the ingredient management system is updated according to the target weight; wherein the target ingredient is pre-bound to the target weight sensor.

[0091] Specifically, after updating the weight of the target ingredient in the ingredient management system according to the target weight, the method further includes:

[0092] Displaying the target ingredient and the corresponding target weight on a display screen, as well as the storage compartment or door shelf where the target ingredient is located;

[0093] When a target ingredient change operation issued by a user is received, the binding relationship between the target ingredient and the target weight sensor is updated according to the target ingredient change operation.

[0094] It is worth noting that the working process of the on-off power control method for the weight sensor of the refrigerator described in the embodiment of the present invention can refer to the working process of the controller in the refrigerator described in the above embodiment, and will not be repeated here.

[0095] Compared to the prior art, the method for controlling the power on and off of the weight sensor of a refrigerator disclosed in the present invention obtains the detection data sent by the door switch status detection device. When the detection data indicates that the target door is opened, all weight sensors of the storage chamber or door shelf corresponding to the target door are controlled to be powered on; when the detection data indicates that the target door is closed, all weight sensors of the storage chamber or door shelf corresponding to the target door are controlled to be powered off. In an embodiment of the present invention, the weight sensor of the refrigerator stops being powered on when the door is closed, which does not cause additional power consumption and saves power. In addition, the weight sensor can be bound one-to-one with the food material, can monitor the weight change of the food material, and can receive the user's food material change operation, and timely update the binding relationship between the weight sensor and the food material to avoid binding errors.

[0096] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles 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 box door is provided at the opening of the storage chamber and is used to open and close the storage chamber. A plurality of door shelves are provided inside the box door. at least one weight sensor, disposed in the box, for detecting the weight of food stored in the refrigerator; A door opening and closing state detection device is provided on the door of the storage room or door shelf where the weight sensor is distributed, and is used to detect the opening and closing of the door; The controller is configured as: Acquiring detection data sent by the door switch state detection device; When the detection data indicates that the target door is opened, all weight sensors of the storage room or door shelf corresponding to the target door are powered on; When the detection data indicates that the target door is closed, all weight sensors controlling the storage chamber or door shelf corresponding to the target door are powered off.

2. The refrigerator according to claim 1, wherein The refrigerator further comprises: A display screen is provided outside the door, for displaying refrigerator operating parameters and receiving user touch operations; The controller is further configured to: When any weight sensor is powered on, obtaining the real-time weight detected by the weight sensor; The real-time weight of the weight sensor is displayed on the display screen.

3. The refrigerator according to claim 2, wherein: The step of displaying the real-time weight of the weight sensor on the display screen comprises: When only one weight sensor is provided in the storage room or the door shelf, the real-time weight of the weight sensor is displayed on the display screen; When at least two weight sensors are provided in the storage chamber or the door shelf, the average weight of the at least two weight sensors is displayed on the display screen.

4. The refrigerator according to claim 1, wherein The controller is further configured to: When detecting that the target weight sensor switches from a power-on state to a power-off state, obtaining the real-time weight detected by the target weight sensor when the target weight sensor is in the power-on state; The last real-time weight detected by the target weight sensor before power failure is used as the target weight; The weight of the target ingredient in the ingredient management system is updated according to the target weight; wherein the target ingredient is pre-bound to the target weight sensor.

5. The refrigerator according to claim 4, wherein: After updating the weight of the target ingredient in the ingredient management system according to the target weight, the controller is further configured to: Displaying the target ingredient and the corresponding target weight on a display screen, as well as the storage compartment or door shelf where the target ingredient is located; When a target ingredient change operation issued by a user is received, the binding relationship between the target ingredient and the target weight sensor is updated according to the target ingredient change operation.

6. A method for controlling the power on and off of a refrigerator weight sensor, characterized in that: include: Acquire detection data sent by the refrigerator door switch status detection device; When the detection data indicates that the target door is opened, all weight sensors of the storage room or door shelf corresponding to the target door are powered on; When the detection data indicates that the target door is closed, all weight sensors controlling the storage chamber or door shelf corresponding to the target door are powered off.

7. The method for controlling the power on and off of a weight sensor of a refrigerator according to claim 6, wherein: The method further comprises: When any weight sensor is powered on, obtaining the real-time weight detected by the weight sensor; The real-time weight of the weight sensor is displayed on the display screen.

8. The method for controlling the power on and off of a weight sensor of a refrigerator according to claim 7, wherein: The step of displaying the real-time weight of the weight sensor on the display screen comprises: When only one weight sensor is provided in the storage room or the door shelf, the real-time weight of the weight sensor is displayed on the display screen; When at least two weight sensors are provided in the storage chamber or the door shelf, the average weight of the at least two weight sensors is displayed on the display screen.

9. The method for controlling the power on and off of a weight sensor of a refrigerator according to claim 7, wherein: The method further comprises: When detecting that the target weight sensor switches from a power-on state to a power-off state, obtaining the real-time weight detected by the target weight sensor when the target weight sensor is in the power-on state; The last real-time weight detected by the target weight sensor before power failure is used as the target weight; The weight of the target ingredient in the ingredient management system is updated according to the target weight; wherein the target ingredient is pre-bound to the target weight sensor.

10. The method for controlling the power on and off of a weight sensor of a refrigerator according to claim 9, wherein: After updating the weight of the target ingredient in the ingredient management system according to the target weight, the method further includes: Displaying the target ingredient and the corresponding target weight on a display screen, as well as the storage compartment or door shelf where the target ingredient is located; When a target ingredient change operation issued by a user is received, the binding relationship between the target ingredient and the target weight sensor is updated according to the target ingredient change operation.

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