Control method of refrigerator door body and refrigerator

Abstract

This invention discloses a method for controlling a refrigerator door, comprising the following steps: receiving a signal indicating that the door meets travel calibration conditions; driving the door to move to the maximum open position; recording a first variable generated by a position detection sensor when the door moves from the closed position to the maximum open position; setting the variable of the position detection sensor as a second variable, wherein the second variable is the first variable multiplied by a variable constant, and the variable constant is greater than 0 and less than 1; and controlling the door movement using the second variable of the position detection sensor as a criterion for determining that the door is fully open. By periodically detecting the maximum open position of the drawer and updating the control data, the drawer opening is ensured to remain within a reasonable range, thus improving the reliability of the door opening and closing module.

Description

Technical Field

[0001] This invention relates to the field of ice-making equipment, and more particularly to a method for controlling a refrigerator door and a refrigerator. Background Technology

[0002] Refrigerators are common household appliances, and most refrigerators have manual doors. However, manual doors can be inconvenient for users in many situations. For example, when both hands are occupied, users need to put down the food or other items they are holding before they can open the refrigerator door. Furthermore, when the refrigerator door is opened, the door needs to be pulled apart from the refrigerator body due to the self-adhesive force between the door and the body, which requires a considerable amount of force to open the door. Therefore, this causes great inconvenience to users.

[0003] When using an automatic door refrigerator, the door opening and closing module is activated by triggering a switch to open the door. Once the refrigerator door is fully open, triggering the switch again will close the door, making it more convenient for users to open and close the refrigerator door.

[0004] Refrigerators with automatic door opening and closing functions, especially those with large drawers in the freezer compartment, can automatically open and close the door under certain triggering conditions, making it convenient for users to access the refrigerator. In the automatic opening and closing control of the freezer drawer, it is necessary to clearly define the degree of drawer opening, i.e., the opening distance. During operation, the drawer should stop when it reaches the maximum preset position. However, due to objective reasons such as refrigerator deformation during production or use, the previously preset values ​​or values ​​detected by various sensors may deviate. It is possible that the drawer has already opened to its maximum position but has not been detected as fully open, causing the module to continue operating. Frequent overload and overheating can affect the module's lifespan. Furthermore, the position needs to be confirmed initially for different refrigerator models. Once the position is confirmed, the above method cannot correct the fault, posing a safety hazard.

[0005] For refrigerators with automatic door opening and closing functions, the automatic opening and closing of drawers typically relies on photoelectric encoders, pulse counters, angle sensors, and switching time, or on a stall state caused by changes in module current to detect whether the drawer is fully open or closed. Once the system detects the open / closed position, it stops the drawer. For models using photoelectric encoders, pulse counters, angle sensors, and switching time for detection, specific parameters need to be manually controlled during the design process and cannot be modified later. Structural changes during production or use can lead to large errors, and adjustments are required for different models, resulting in a large workload and poor consistency. Models that determine the open / closed position by detecting current experience a surge in current each time the position is detected, which impacts the module motor, affecting motor life and overall reliability. All of the above control solutions have certain problems. Summary of the Invention

[0006] One objective of this invention is to provide a method for controlling a refrigerator door, which updates control data by periodically detecting the maximum open position of the door to ensure that the door opening does not exceed a reasonable range and improves the reliability of the door opening and closing module.

[0007] Another object of the present invention is to provide a refrigerator in which the reliability of the door opening and closing module can be improved by adopting the above-described control method.

[0008] To achieve one of the above-mentioned objectives, an embodiment of the present invention provides a method for controlling a refrigerator door, comprising:

[0009] A signal indicating that the gate body meets the travel calibration conditions is received;

[0010] Drive the door to its maximum open position;

[0011] Record the first variable detected by the position detection sensor when the door moves from the closed position to the maximum open position;

[0012] The variable of the position detection sensor is set as the second variable, which is the first variable multiplied by a variable constant, and the variable constant is greater than 0 and less than 1;

[0013] The second variable of the position detection sensor is used as the criterion for determining whether the door is in the correct position to control the door movement.

[0014] As a further improvement of one embodiment of the present invention, the signal characterizing that the door meets the travel calibration conditions is the signal of the refrigerator being powered on for the first time or the signal of power being turned on again after a power outage.

[0015] As a further improvement of one embodiment of the present invention, the signal characterizing that the door meets the travel calibration condition is that the number of times the door is opened continuously reaches a preset number.

[0016] As a further improvement of one embodiment of the present invention, the signal characterizing that the door meets the travel calibration condition is that during the door opening process, the current value of the motor driving the door is detected to be greater than or equal to a preset current value and less than the emergency stop current value n times in a row, wherein n times is greater than or equal to 2 times.

[0017] As a further improvement of one embodiment of the present invention, the duration during which the current value of the motor is greater than or equal to a preset current value and less than the emergency stop current value is determined to be greater than or equal to a first preset time as one occurrence.

[0018] As a further improvement of one embodiment of the present invention, if the current value of the motor driving the door is detected to be greater than or equal to a preset current value and less than the emergency stop current value for a second preset time, it is determined that the door has moved to the maximum open position.

[0019] As a further improvement of one embodiment of the present invention, a drawer is connected to the rear side of the refrigerator door. When the door is controlled to move by using the second variable of the position detection sensor as the judgment criterion for the door to be opened in place, the speed at which the door is driven to open or close is first uniform and then decelerated.

[0020] As a further improvement of one embodiment of the present invention, a drawer is connected to the rear side of the refrigerator door. The weight of the drawer is less than or equal to a preset weight value, and the door is driven to move at a preset speed. If the weight of the drawer is greater than the preset weight value, the speed at which the door is driven to move is the preset speed multiplied by the variable constant.

[0021] As a further improvement of one embodiment of the present invention, when controlling the movement of the door by using the second variable of the position detection sensor as the judgment criterion for the door to be opened to the correct position, if the weight of the drawer is detected to be greater than a preset weight value, the distance the door is controlled to open is multiplied by the variable constant.

[0022] As a further improvement of one embodiment of the present invention, after receiving the door opening command, the refrigerator meets the travel calibration conditions and sends a signal indicating that the door meets the travel calibration conditions; during the door opening process, if the current value of the motor driving the door is detected to be less than the preset current value, the door movement is controlled by using the first variable of the position detection sensor as the judgment criterion for the door to be opened in place.

[0023] The present invention also relates to a refrigerator, comprising:

[0024] Box;

[0025] A drawer assembly includes a door and a drawer mounted on the rear side of the door, the drawer being able to be pushed and pulled back and forth within the cabinet;

[0026] A drive mechanism configured to controllably drive the drawer to move forward to open the door or backward to close the door; and

[0027] The controller includes a memory and a processor, the memory storing a computer program, which, when executed by the processor, is used to implement a method for controlling a refrigerator door according to any of the above embodiments. Attached Figure Description

[0028] Figure 1 This is a side view of a refrigerator according to one embodiment of the present invention;

[0029] Figure 2 yes Figure 1 Front view of the refrigerator;

[0030] Figure 3 yes Figure 1 Control system block diagram of a refrigerator;

[0031] Figure 4 yes Figure 3 The control flow diagram of the stroke calibration process of the refrigerator in the middle;

[0032] Figure 5 yes Figure 3 A flowchart for determining whether the refrigerator in the process performs stroke calibration;

[0033] Figure 6 yes Figure 3 The flowchart shows the process for determining whether the refrigerator meets the conditions for stroke calibration. Detailed Implementation

[0034] Reference will now be made in detail to embodiments of the invention, one or more examples of which are illustrated in the accompanying drawings. Each example is provided by way of explanation and is not intended to limit the invention. Indeed, it will be apparent to those skilled in the art that various modifications and variations can be made to the invention without departing from the scope or spirit thereof. For example, features shown or described as part of one embodiment may be used with another embodiment to produce yet another embodiment. Therefore, the invention is intended to cover such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0035] As used herein, the terms “first,” “second,” and “third” are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of individual components. Terms such as “inner” and “outer” refer to the relative directions of the interior and exterior of a refrigerator (and particularly the food storage compartment defined therein). For example, “inner” or “inward” refers to the direction toward the interior of the refrigerator. Terms such as “left,” “right,” “front,” “back,” “top,” or “bottom” are used with reference to the perspective of a user entering the refrigerator. For example, a user stands in front of the refrigerator, opens the door, and reaches into the food storage compartment to retrieve items inside.

[0036] As used herein, approximate terms such as “roughly,” “about,” or “approximately” include values ​​that are up to 10 percent larger or smaller than the stated value. When used in the context of angles or directions, these terms include angles that are up to 10 degrees larger or smaller than the stated angle or direction; for example, “generally vertical” includes an angle of up to 10 degrees clockwise or counterclockwise with respect to the vertical direction V.

[0037] Figure 1 and Figure 2 A schematic diagram of a refrigerator 100 according to one or more embodiments of this application is provided. The refrigerator 100 defines a vertical direction V, a lateral direction L, and a transverse direction T, each of which is perpendicular to the others. For example... Figure 1 and Figure 2As can be seen, the refrigerator 100 includes a cabinet 10 extending along a vertical direction V between the top and bottom, along a lateral direction L between the left and right sides, and along a transverse direction T between the front and rear. The cabinet 10 defines a refrigerated compartment for receiving food to be stored. As used herein, the compartment can be “cooled” because it can operate at a temperature below room temperature. In an exemplary embodiment, a mechanical chamber is defined at or near the bottom of the cabinet for housing the compressor of a hermetically sealed refrigeration system.

[0038] The cabinet 10 defines a refrigerator compartment 12 and a freezer compartment 14, the freezer compartment being spaced apart from the refrigerator compartment 12 along a vertical direction V. For example, in Figure 1 and Figure 2 In the illustrated embodiment, the refrigerator compartment 12 is located at the top of the cabinet 10 or adjacent to the top of the shell, while the freezer compartment 14 is arranged at the bottom of the cabinet 10 or adjacent to the bottom of the shell. Of course, a variable temperature compartment 16 can also be provided between the refrigerator and freezer compartments. Thus, the refrigerator 100 is generally referred to as a bottom-mounted refrigerator. However, it should be understood that this application can be applied to other types and styles of refrigerators, such as top-mounted refrigerators or side-by-side refrigerators. Therefore, the description set forth herein is for illustrative purposes only and is not intended to limit in any way to any particular refrigerator configuration.

[0039] As in Figure 1 and Figure 2 As can be seen, the refrigerator compartment 12 extends vertically in the direction V between the top and bottom of the cabinet body, and extends laterally in the direction L between the left and right sides of the cabinet body 10. The refrigerator compartment 12 also extends laterally in the direction T between the front portion and the back portion. The front portion of the refrigerator compartment 12 defines an opening for receiving food.

[0040] The refrigerator door is rotatably mounted (e.g., hinged) to the edge of the cabinet 10 for selective access to the refrigerator compartment 12. Additionally, a freezer door 21 is arranged below the refrigerator door for selective access to the freezer compartment 14. The freezer door 21 is connected to a freezer drawer 22, which is mounted on the rear side of the freezer door and slidably installed within the freezer compartment 14.

[0041] Figure 3A control system block diagram of refrigerator 100 is provided. Refrigerator 100 includes a controller 30 operatively coupled to or in communication with components of the refrigerator 100's refrigeration system (not shown) configured to cool or communicate with the components of the refrigerator compartment 12 or freezer compartment 14. These components include a compressor, an evaporator fan, etc. Controller 30 can selectively operate these components to cool the refrigerator compartment 12 or freezer compartment 14. Controller 30 also communicates with a thermostat (e.g., a thermocouple or a thermistor). The thermostat may be located in the refrigerator compartment 12 or freezer compartment 14. Controller 30 can receive signals from the thermostat corresponding to the temperature of the refrigerator compartment 12 or freezer compartment 14. Controller 30 may also include an internal timer for calculating elapsed time periods.

[0042] The controller 30 may include memory and one or more microprocessors 31, CPUs, etc., such as general-purpose or special-purpose microprocessors operable to execute programming instructions or microcontroller code associated with the operation of the refrigerator 100. The memory may represent random access memory 32 such as dynamic random access memory (DRAM), or read-only memory such as read-only memory (ROM) or FLASH. In some embodiments, the processor executes non-transitory programming instructions, i.e., computer programs 33, stored in the memory. In some embodiments, these instructions include software packages configured to operate the refrigerator 100 or perform operating routines. The memory may be a component separate from the processor or may be on a board contained within the processor. Alternatively, the controller 30 may be configured to perform control functions without using a microprocessor (e.g., using a combination of discrete analog or digital logic circuits; such as switches, amplifiers, integrators, comparators, flip-flops, and gates, etc.) instead of relying on software.

[0043] The controller 30 may be located at various locations throughout the refrigerator 100. Input / output (“I / O”) signals can be routed between the controller 30 and various operating components of the refrigerator 100. One or more components of the refrigerator 100 may communicate with the controller 30 via one or more conductive signal lines or a shared communication bus (e.g., electrical communication). Additionally or alternatively, one or more components of the refrigerator 100 may communicate with the controller 30 via one or more wireless signal bands (e.g., wireless communication).

[0044] In this preferred embodiment, the refrigerator further includes a drive mechanism 50, configured to controllably drive the drawer door to move forward to open or backward to close. The drive mechanism 50 can be a motor, connected to a controller, which drives the drawer forward or backward through a transmission mechanism. The drive mechanism 50 is located on one or both sides of the refrigerator body. The refrigerator body 10 is also equipped with a sensor for detecting the drawer position. The position detection sensor is connected to the controller and can be an ultrasonic sensor, an infrared sensor, a laser rangefinder, or a photoelectric encoder, a pulse counter, an angle sensor, a timer for recording opening and closing times, etc.

[0045] The aforementioned position detection sensor records variable A as the drawer moves from the closed position to the open position. This variable A serves as the criterion for determining when the drawer is fully open, and the distance the drawer travels to reach its maximum open position is denoted as X. The control circuit of the drive mechanism includes a current detection circuit. By detecting the current I, the motor of the drive mechanism can be protected and controlled. The program sets the judgment current I0 and the emergency stop current value Imax, where I0 < Imax. During normal operation of the drawer, the detected current I < I0.

[0046] To avoid detection deviations in the position detection sensor, this invention also provides a control method for calibrating the travel distance of the drawer movement. (Refer to...) Figure 4 As shown, a preferred embodiment of the present invention describes a method for controlling a refrigerator door, comprising the following steps:

[0047] A signal indicating that the gate body meets the travel calibration conditions is received;

[0048] Drive the door to its maximum open position;

[0049] Record the first variable detected by the position detection sensor when the door moves from the closed position to the maximum open position;

[0050] Set the variable of the position detection sensor as the second variable, which is the first variable multiplied by the variable constant, and the variable constant is greater than 0 and less than 1;

[0051] The second variable of the position detection sensor is used as the criterion for determining whether the door is in the correct position to control the door movement.

[0052] Reference Figure 5 Before or after receiving a signal indicating that the door meets the travel calibration conditions, an opening signal is required to perform the calibration. In other words, upon receiving the opening signal, the controller will determine if the calibration conditions are met; if so, the travel calibration process will proceed. Otherwise, the door will open and close normally. This process of the user opening the door also constitutes a travel calibration process, achieving contactless calibration.

[0053] Reference Figure 6 The signal indicating that the door meets the travel calibration conditions can be the refrigerator's first power-on signal or the signal after a power outage and subsequent power-on signal. The controller determines that the refrigerator is in a first-time power-on state. When the freezer drawer receives an open command, travel calibration is performed to calibrate the newly used refrigerator. In this way, manual adjustment and calibration are not required during the design and production process for different models, improving accuracy and reducing workload.

[0054] In another preferred embodiment of the present invention, the signal indicating that the door meets the travel calibration condition is that the number of times the door is continuously opened reaches a preset number. The refrigerator continuously runs the freezer drawer to automatically open and close N times. Continuous operation means that the refrigerator is not powered off during operation. Travel calibration is performed when the freezer drawer automatically opens and closes for the N+1th time. The purpose is to prevent the drawer from deforming after a period of use, which would result in a large travel error and affect normal operation.

[0055] In another preferred embodiment of the present invention, the signal indicating that the door meets the travel calibration condition is that during the door opening process, the current value of the motor driving the door is detected to be greater than or equal to a preset current value and less than an emergency stop current value n times consecutively, where n times is greater than or equal to 2 times. The duration for which the motor current value is greater than or equal to the preset current value and less than the emergency stop current value is greater than or equal to a first preset time is determined to be 1 time. When I0≤I<Imax occurs consecutively for the first preset time during the freezer drawer opening and closing process n times, it is determined that the actual travel of the drawer has reached or exceeded the actual maximum openable extent, and travel calibration is performed when the freezer drawer automatically opens and closes for the (n+1)th time. The first preset time is approximately 2-5 seconds, preferably 2 seconds, and this preset time can be set according to the model.

[0056] The above-described methods for triggering travel calibration are merely preferred embodiments for describing the control process and can be selected according to the specific needs of the device; they are not intended as limitations. If the user feels the travel is too short during use, the travel can be recalibrated by unplugging and plugging in the power supply, or by using buttons, the control panel, or an app.

[0057] Furthermore, if the current value of the motor driving the door is detected to be greater than or equal to a preset current value and less than the emergency stop current value for a second preset time, it is determined that the door has moved to the maximum open position. When I0≤I<Imax for a second preset time, it is determined that the drawer is in position, and the drawer is controlled to stop moving. It is determined that the drawer has reached the maximum open position at this time, and the distance the drawer has moved is X0. The first variable A0 of the position detection sensor is recorded at this time. The controller's memory has a constant α (0<α<1), which can be set according to actual usage needs, such as according to the size of the model. The actual opening distance of the drawer is controlled as X1=α·X0 (for example, when α=0.95, the actual opening distance of the drawer is X1=0.95·X0), corresponding to the sensor variable A1=0.95·A0. By adding a certain margin, it is ensured that the motor is not in a high current state when the drawer is in position, thus protecting the motor. For ease of description in the following content, this control is called stroke calibration. In addition, during the travel calibration process, if the motor current I < I0, that is, there is no excessive motor load, then normal door opening and closing can be performed, and the first variable of the position detection sensor can continue to be used as the judgment benchmark for the door to be opened in place to control the door movement.

[0058] In this embodiment, a drawer is connected to the rear side of the refrigerator door. A weight sensor is installed at the bottom of the drawer and is connected to a controller. When the weight of the drawer is less than or equal to a preset weight value, the door is driven to move at a preset speed. When the weight of the drawer is greater than the preset weight value, the speed at which the door moves is the preset speed multiplied by the variable constant. When the weight of the drawer is large, the inertia increases accordingly. By reducing the speed at which the door moves, the impact of inertia is reduced while ensuring normal opening and closing of the drawer.

[0059] Furthermore, when controlling the door movement using the second variable from the position detection sensor as the criterion for determining when the door is fully open, the speed at which the door opens or closes is initially constant and then decelerates. When a command to open the drawer is received, the drawer can initially move at a preset speed, and then decelerate when it reaches the reference position. This prevents the drawer from being fully opened due to inertia, thus preventing noise and damage to the drawer drive mechanism. Of course, the process from fully open to closing the drawer also involves the same speed distribution as during opening. This avoids noise and vibration when closing the door, preventing accidental opening.

[0060] To make the travel calibration process more seamless, the door is moved to its maximum open position at a speed equal to the speed at which it is controlled when the second variable of the position detection sensor is used as the benchmark for determining that the door is fully open. In other words, during travel calibration, the door moves at the same speed as during normal opening, allowing users to achieve travel calibration during normal use and thus improving the user experience.

[0061] In this embodiment, when the door is driven to its maximum open position, the first moving distance of the door is recorded. Using the second variable from the position detection sensor as the criterion for determining when the door is fully open, the door is controlled to move at the second moving distance when the drawer's weight is detected to be greater than a preset weight value. The second moving distance is the first moving distance multiplied by a variable constant. Determining the maximum open position of the drawer based on its weight prevents the track from bearing excessive weight, which could affect its lifespan and also cause excessive closing resistance and motor load.

[0062] In this embodiment, the command input for opening or closing the door can be a voice input device. The device receiving the voice input can be located on the top of the enclosure. After receiving the voice information from the user, it recognizes the voice information to obtain the user's input command. Command input can also be via a touchscreen, which is located on the enclosure door. The user can input commands by touching the touchscreen. Furthermore, the command input device can also be a button, with different buttons assigned to different commands, allowing the user to input the corresponding command by triggering different buttons. Moreover, command input can also be through tapping, pushing / pulling actions, gesture operations, etc., and this embodiment is not limited to these methods.

[0063] This application also relates to a refrigerator 100, including a cabinet 10, a drawer assembly, a drive mechanism 50, and a controller 30. The drawer assembly includes a door 21 and a drawer 22 installed on the rear side of the door. The drawer 22 is installed in the cabinet 10 in a push-pull manner. The drive mechanism 50 is configured to controllably drive the drawer to move forward to open the door or move backward to close the door. The controller 30 includes a memory 31 and a processor 32. The memory 32 stores a computer program 33, and when the computer program is executed by the processor, it is used to implement the above-mentioned refrigerator door control method.

[0064] The control method described in this application updates the control data by periodically detecting the maximum open position of the drawer, ensuring that the drawer opening does not exceed a reasonable range and improving the reliability of the door opening and closing module. It can automatically perform calibration after abnormal drawer opening and closing or after a period of operation, improving reliability through automatic calibration during operation and providing a seamless calibration experience during use, thus enhancing the user experience. A triggering method can also be added, allowing manual operation to determine the timing of calibration. Furthermore, manual debugging and calibration are unnecessary during the design and production of different models, improving accuracy and reducing workload.

[0065] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0066] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for controlling a refrigerator door, the refrigerator comprising: Box; A drawer assembly includes a door and a drawer mounted on the rear side of the door, the rear side of the door being connected to the drawer; The drawer can be installed in the box body by sliding it back and forth; A drive mechanism, configured to controllably drive the door to move forward to open or backward to close, wherein the drive mechanism is a motor, and the motor drives the drawer to move forward or backward via a transmission mechanism; characterized in that the control method includes the following steps: Upon receiving the door opening command, the refrigerator meets the travel calibration conditions and sends a signal indicating that the door meets the travel calibration conditions; A signal indicating that the gate body meets the travel calibration conditions is received; Drive the door to its maximum open position; Record the first variable detected by the position detection sensor when the door moves from the closed position to the maximum open position; The variable of the position detection sensor is set as the second variable, which is the first variable multiplied by a variable constant, and the variable constant is greater than 0 and less than 1; The second variable of the position detection sensor is used as the criterion for determining whether the door is fully open to control the door movement; During the opening of the door, if the current value of the motor is detected to be less than the preset current value, the door movement will continue to be controlled based on the first variable of the position detection sensor as the judgment criterion for the door to be fully opened.

2. The control method according to claim 1, characterized in that, The signal indicating that the door meets the travel calibration conditions is the signal when the refrigerator is first powered on or after a power outage and subsequent power-on.

3. The control method according to claim 1, characterized in that, The signal that the door meets the travel calibration conditions is the number of times the door has been opened continuously reaches the preset number.

4. The control method according to claim 1, characterized in that, The signal that the door meets the travel calibration conditions is that during the door opening process, the current value of the motor is detected to be greater than or equal to the preset current value and less than the emergency stop current value n times in a row, where n times is greater than or equal to 2 times.

5. The control method according to claim 4, characterized in that, The duration during which the motor's current value is greater than or equal to a preset current value and less than an emergency stop current value is greater than or equal to a first preset time is determined as 1 occurrence.

6. The control method according to claim 1, characterized in that, If the current value of the motor is detected to be greater than or equal to a preset current value and less than the emergency stop current value for a second preset time, it is determined that the door has moved to the maximum open position.

7. The control method according to claim 1, characterized in that, When the second variable of the position detection sensor is used as the criterion for determining whether the door is in the correct position, the speed at which the door is opened or closed is initially constant and then decelerated.

8. The control method according to claim 1, characterized in that, If the weight of the drawer is less than or equal to a preset weight value, the door is driven to move at a preset speed; if the weight of the drawer is greater than the preset weight value, the door is driven to move at a speed equal to the preset speed multiplied by the variable constant.

9. The control method according to claim 7, characterized in that, When the second variable of the position detection sensor is used as the criterion for determining whether the door is fully open, and the weight of the drawer is detected to be greater than a preset weight value, the distance the door is opened is controlled to be the moving distance of the door fully open multiplied by the variable constant.

10. A refrigerator, characterized in that, include: The controller includes a memory and a processor, the memory storing a computer program, and the computer program being executed by the processor to implement the control method for the refrigerator door according to any one of claims 1-9.

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