Refrigerator drawer opening and closing method, medium, and refrigerator

Abstract

The present invention provides a method, medium, and refrigerator for opening and closing a drawer of a refrigerator. The method for opening and closing a drawer of a refrigerator includes the steps of: acquiring a pulse signal from a pulse module, where the pulse module is activated to generate a pulse signal when the drawer moves, and the movement of the drawer includes opening and closing; acquiring the number of pulses from the pulse signal; acquiring the direction of movement of the drawer based on the pulse signal when the number of pulses reaches a predetermined value; and activating a drive module to continue moving the drawer in the current direction of movement. A beneficial effect of this method is that the opening and closing of a refrigerator drawer can be accurately driven.

Description

[Technical Field]

[0001] The present invention relates to the field of home appliances, and more particularly to a method for opening and closing a drawer of a refrigerator, a medium, and a refrigerator. [Background technology]

[0002] Refrigerators can be used by users to store everyday items. Due to the high frequency of use of the refrigerator compartment, it is generally located at the top of the refrigerator and the freezer compartment at the bottom. The freezer compartment can be designed as a drawer, including a drawer for storing items, a rail between the drawer and the freezer compartment, and a drawer door at the front end of the drawer. The user can pull the drawer door to pull the drawer out of the freezer compartment to store items, and then push the drawer door back into the freezer compartment after storing the items. However, this design has the following drawbacks. The freezer compartment drawer is heavy when combined with the weight of the items inside the drawer, making it difficult for some people, such as the elderly and children, to push and pull it, making it inconvenient to use. Summary of the Invention

[0003] An object of the present invention is to provide a method, medium, and refrigerator for opening and closing a refrigerator drawer, which can accurately drive the opening and closing of the refrigerator drawer by acquiring a pulse signal from a pulse module and acquiring the movement direction of the drawer based on the pulse signal when the number of pulses reaches a predetermined value.

[0004] In order to achieve the above object of the present invention, one embodiment of the present invention provides a method for opening and closing a drawer of a refrigerator, the method comprising the steps of: acquiring a pulse signal from a pulse module, wherein the pulse module is activated to generate a pulse signal when the drawer moves, the movement of the drawer including an opening operation and a closing operation; acquiring the number of pulses of the pulse signal; When the number of pulses reaches a predetermined value, obtaining the moving direction of the drawer based on the pulse signal; and actuating a drive module to continue moving the drawer in its current direction of movement.

[0005] In order to achieve the above object of the invention, one embodiment of the present invention provides a computer-readable storage medium having a computer program stored therein, and when the computer program is executed by a processor, the method for opening and closing a refrigerator drawer described in any of the above embodiments is performed.

[0006] To achieve the above object of the invention, one embodiment of the present invention provides a refrigerator, the refrigerator including a storage device and a processor, the storage device storing a computer program executable on the processor, and the processor executing the computer program to perform the method for opening and closing a drawer of a refrigerator according to any one of the above embodiments.

[0007] Compared with the prior art, the present invention has the beneficial effect of accurately controlling the opening and closing of refrigerator drawers by obtaining pulse signals from a pulse module and obtaining the movement direction of the drawer based on the pulse signals when the number of pulses reaches a predetermined value. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing the structure of a refrigerator according to one embodiment of the present invention. [Figure 2] FIG. 2 is a diagram showing the structure of the drive module and rails between the drawer and the side wall of the storage compartment shown in FIG. [Figure 3] FIG. 3 is a diagram illustrating a structure of a pulse module of the refrigerator shown in FIG. [Figure 4] FIG. 4 is a diagram showing a pulse signal generated by the pulse module shown in FIG. 3 during the opening operation of the drawer. [Figure 5] FIG. 5 is a diagram showing a pulse signal generated by the pulse module shown in FIG. 3 during the closing operation of the drawer. [Figure 6]FIG. 6 is a flowchart of a method for opening and closing a drawer of a refrigerator according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0009] The present invention will be described in detail below based on specific embodiments shown in the drawings, but these embodiments do not limit the present invention, and any structural, method, or functional modifications made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0010] Referring to Figure 1, one specific embodiment of the present invention provides a refrigerator 1. The refrigerator 1 may include a housing 2. The housing 2 may be provided with a plurality of storage compartments 3 for storing items. The storage compartments 3 may include a refrigerator compartment, a freezer compartment, a temperature-variable compartment, etc. In this embodiment, up and down refer to the height direction of the refrigerator 1, and front and rear refer to the depth direction of the refrigerator 1, with the openings of the storage compartments 3 facing forward.

[0011] The refrigerator 1 may include a removable drawer 4 disposed within the storage compartment 3. Preferably, in this embodiment, the drawer 4 is disposed within the freezer compartment. A handle may be provided at the front end of the drawer 4 to facilitate the removal of the drawer 4. Of course, in other embodiments, the drawer 4 may be disposed within the refrigerator compartment, the temperature-variable compartment, etc.

[0012] 1 to 6, in this embodiment, a method for opening and closing a drawer 4 of a refrigerator 1 is provided. This method includes: Obtaining a pulse signal of a pulse module 5, wherein the pulse module 5 is activated to generate a pulse signal when the drawer 4 moves, and the movement of the drawer 4 can include an opening action and a closing action; acquiring the number of pulses of the pulse signal; When the number of pulses reaches a predetermined value, obtaining the moving direction of the drawer 4 based on the pulse signal; and activating the drive module 6 to continue moving the drawer 4 in the current direction of movement.

[0013] 2 and 3, in this embodiment, the driving module 6 may include a gear 61 connected to the drawer 4 and a motor connected to the gear 61. When the motor is activated, the motor may drive the gear 61 to move the drawer 4, and when the motor is not activated, the drawer 4 may move under the action of an external force and simultaneously rotate the gear 61. The pulse module 5 may be disposed on the gear 61, and the rotation of the gear 61 may activate the pulse module 5 to generate the pulse signal.

[0014] In this embodiment, rails 7 may be disposed between the drawer 4 and the side walls of the storage chamber 3. The rails 7 may include fixed rails fixed to the side walls of the storage chamber 3 and movable rails fixed to the side walls or bottom wall of the drawer 4.

[0015] The motor and gear 61 can be attached to a fixed rail of the storage room 3. A rack 71 can be provided on the movable rail. The gear 61 can mesh with the rack 71. When the motor drives the gear 61 to rotate, the gear 61 simultaneously moves the rack 71 on the movable rail, and the drawer 4 moves accordingly. When a user pulls out the drawer 4, the rack 71 moves following the drawer 4, and the gear 61 rotates accordingly.

[0016] The motor can be a motor that can rotate in the forward direction, the reverse direction, and adjust the rotation speed, and realizes the opening and closing operations of the drawer 4 and the movement speed of the drawer 4.

[0017] The pulse module 5 may include a magnet 51 and a Hall sensor 52 arranged at positions corresponding to each other.

[0018] Preferably, a first driven wheel can be provided on the gear shaft of the gear 61. A second driven wheel 53 can be disposed on one side of the first driven wheel so as to mesh with it. A plurality of magnets 51 can be disposed at equal intervals on the rim of the second driven wheel 53. A Hall sensor 52 can be fixed to the periphery of the second driven wheel 53. When the gear 61 rotates, the magnet 51 on the second driven wheel 53 rotates together with the gear 61, and when the magnet 51 passes by the Hall sensor 52, the Hall sensor 52 can be activated to generate a pulse signal.

[0019] Of course, in other embodiments of the present invention, the magnet 51 can also be disposed on the periphery of the gear 61, or on the gear shaft of the gear 61, or on the drawer side wall 4, so long as the pulse module 5 can generate a periodic pulse signal when the drawer 4 moves.

[0020] Of course, in other embodiments of the present invention, the pulse module 5 can also adopt a structure that achieves the same function as the magnet 51 and the Hall sensor 52. For example, the magnet 51 can be replaced with a light shielding plate and a shielding plate spaced apart, and the Hall sensor 52 can be replaced with a photoelectric sensor.

[0021] 2 and 3, in this embodiment, a clutch can be disposed between the motor and the gear 61. In this case, the method includes: When a signal to start the motor is received, the clutch is controlled to connect the motor to the gear 61, When it is detected that the drawer 4 has stopped, the step of controlling the clutch to release the connection between the motor and the gear 61 can be included.

[0022] In actual use, when the drawer 4 stops, the clutch is controlled to release the connection between the motor and gear 61, preventing the connection between the gear 61 and the motor from interfering with the user's ability to push or pull the drawer 4, allowing the user to pull or push the drawer 4 with a relatively small force.

[0023] When a user pulls the stationary drawer 4 outward, the drawer 4 rotates the gear 61, and the magnet 51 rotates accordingly, activating the Hall sensor 52 and generating a pulse signal.

[0024] When the pulse signal reaches a certain number, it indicates that the user is trying to open or close the drawer 4, and the drawer 4 did not move due to an inadvertent touch, so the motor is started and at the same time the clutch is controlled to connect the motor and gear 61, and the motor drives the gear 61 to continue moving the drawer 4 in the direction that the user is pushing or pulling it.

[0025] In this way, the user's manual pushing and pulling of the drawer 4 can be combined with the opening and closing of the drawer 4 by electric drive, and the user can activate the automatic opening and closing function of the drawer 4 by pulling or pushing the drawer 4, eliminating the need for an additional operating structure, and allowing the opening and closing of the drawer 4 by the drive module 6 to be accurately controlled, preventing malfunction of the drive module 6 due to accidental contact by the user and making it easier for the user to use.

[0026] 3 to 5, in the method for opening and closing the drawer 4 of the refrigerator 1 in this embodiment, the pulse signal may include a first pulse signal 81 and a second pulse signal 82, and the first pulse signal 81 and the second pulse signal 82 have the same frequency but are out of phase with each other by 90 degrees, When the drawer 4 performs the opening operation, the first pulse signal 81 is delayed in phase by 90 degrees from the second pulse signal 82. When the drawer 4 performs the closing operation, the first pulse signal 81 leads the second pulse signal 82 in phase by 90 degrees.

[0027] In this embodiment, the pulse module 5 may include two Hall sensors 52 cooperating with the magnet 51, and the two Hall sensors 52 may be located at different positions. When the magnet 51 rotates following the gear 61, the two Hall sensors 52 are activated to generate a first pulse signal 81 and a second pulse signal 82 that are out of phase but have the same frequency. The first pulse signal 81 and the second pulse signal 82 can accurately determine the direction, distance, and speed of movement of the drawer 4.

[0028] Referring to FIG. 4 and FIG. 5, in this embodiment, the step of "obtaining the moving direction of the drawer 4 based on the pulse signal" includes: acquiring a first phase point at which the first pulse signal 81 changes from a high level to a low level or from a low level to a high level, or acquiring a second phase point at which the second pulse signal 82 changes from a high level to a low level or from a low level to a high level; determining whether the first pulse signal 81 and the second pulse signal 82 are at the same level within a 90-degree phase range before the first phase point, or determining whether the first pulse signal 81 and the second pulse signal 82 are at the same level within a 90-degree phase range before the second phase point; determining that the drawer 4 is performing the opening operation when the first pulse signal 81 and the second pulse signal 82 are at different levels within a 90-degree phase range before the first phase point, or when the first pulse signal 81 and the second pulse signal 82 are at the same level within a 90-degree phase range before the second phase point; and determining that the drawer 4 is performing the closing operation when the first pulse signal 81 and the second pulse signal 82 are at the same level within a 90-degree phase range before the first phase point, or when the first pulse signal 81 and the second pulse signal 82 are at different levels within a 90-degree phase range before the second phase point.

[0029] In this way, by comparing the first pulse signal 81 and the second pulse signal 82, the moving direction of the drawer 4 can be accurately determined.

[0030] Referring to Figures 4 and 5, in this embodiment, when the drawer 4 performs the opening or closing operation for a predetermined distance, the number of pulses of the pulse signal generated by the pulse module 5 is obtained in advance, and the movement distance of the drawer 4 corresponding to one pulse can be obtained and stored based on the ratio of the predetermined distance to the number of pulses.

[0031] In this way, the correspondence between the number of pulses in the pulse signal and the moving distance of the drawer 4 can be accurately grasped.

[0032] Referring to FIG. 4 and FIG. 5, in this embodiment, the step of "obtaining the movement distance of the drawer 4 based on the pulse signal" includes: acquiring the number of pulses of the pulse signal; and calculating the movement distance of the drawer 4 based on the number of pulses of the pulse signal and the movement distance of the drawer 4 corresponding to one of the pulse signals stored in advance.

[0033] In this way, the movement distance of the drawer 4 can be accurately determined based on the pulse signal.

[0034] Referring to FIG. 4 and FIG. 5, in this embodiment, the step of "obtaining the moving speed of the drawer 4 based on the pulse signal" includes: obtaining the movement distance of the drawer 4 based on the pulse signal; obtaining a movement time of the drawer 4 based on the pulse signal; and acquiring the moving speed of the drawer 4 based on the ratio of the moving distance of the drawer 4 to the moving time of the drawer 4.

[0035] In this way, the moving speed of the drawer 4 can be accurately determined based on the pulse signal.

[0036] In this embodiment, before "activating the driving module 6 to continue moving the drawer 4 in the current moving direction," acquiring a moving speed of the drawer 4 based on the pulse signal; and determining whether the moving speed is within a predetermined range. If it is within the predetermined range, the driving module 6 is activated, and if it is not within the predetermined range, the driving module 6 is not activated.

[0037] In actual use, if the movement speed of the drawer 4 is slow, the user may inadvertently touch the drawer 4, and there is no need to start the motor to drive the drawer 4, which can prevent the drawer 4 from being opened or closed erroneously due to an accidental touch. Therefore, if it is detected that the movement speed of the drawer 4 is lower than a predetermined range, the drive module 6 can be prevented from being started.

[0038] If the moving speed of the drawer 4 is too fast, i.e., if the user pulls the drawer 4 at a relatively fast speed, even if the driving module 6 is activated, the driving module 6 may not achieve a good driving effect, and may even hinder the movement of the drawer 4 or cause damage to the drawer 4 and the driving module. Furthermore, there is a risk of injury to the user. Therefore, if it is detected that the moving speed of the drawer 4 is higher than a predetermined range, the driving module 6 may not be activated.

[0039] Furthermore, in this embodiment, the predetermined range may include a first predetermined range and a second predetermined range. a step of determining whether or not the moving speed of the drawer 4 is within the first predetermined range when it is determined based on the pulse signal that the drawer 4 is performing the opening operation; and when it is determined based on the pulse signal that the drawer 4 is performing the closing operation, determining whether or not the moving speed of the drawer 4 is within the second predetermined range; The upper limit value of the first predetermined range is the same as the upper limit value of the second predetermined range, and the lower limit value of the first predetermined range is smaller than the lower limit value of the second predetermined range.

[0040] In this embodiment, different predetermined ranges can be set for the movement speed of the opening and closing operation of the drawer 4. When a user pulls the drawer 4 outward to activate the drive module 6, the minimum movement speed requirement of the drawer 4 is set low, and when a user pushes the drawer 4 inward to activate the drive module 6, the minimum movement speed requirement of the drawer 4 is set high. This can prevent the drawer 4 from automatically closing when the user touches the drawer 4 when putting items in or taking them out, and can improve the accuracy of the operation of the automatic opening and closing function of the drawer 4.

[0041] Furthermore, in this embodiment, before "activating the driving module 6 to continue moving the drawer 4 in the current moving direction," obtaining the movement distance of the drawer 4 based on the pulse signal; and determining whether the movement distance of the drawer 4 reaches a predetermined value. If the predetermined value is reached, the driving module 6 is activated, and if the predetermined value is not reached, the driving module 6 is not activated.

[0042] In this way, the opening and closing of the drawer 4 can be driven accurately, preventing the drawer 4 from being opened or closed incorrectly due to an accidental touch by the user, and improving the accuracy of the operation of the automatic opening and closing function of the drawer 4.

[0043] Furthermore, in this embodiment, the predetermined value may include a first predetermined value and a second predetermined value. a step of determining whether or not a movement distance of the drawer 4 has reached the first predetermined value when it is determined based on the pulse signal that the drawer 4 is performing the opening operation; and when it is determined based on the pulse signal that the drawer 4 is performing the closing operation, determining whether or not the movement distance of the drawer 4 has reached the second predetermined value; The first predetermined value is smaller than the second predetermined value.

[0044] In this embodiment, different predetermined values ​​can be set for the travel distance of the opening and closing operation of the drawer 4. When the user pulls the drawer 4 outward to activate the drive module 6, the minimum travel distance requirement of the drawer 4 is lowered, and when the user pushes the drawer 4 inward to activate the drive module 6, the minimum travel distance requirement of the drawer 4 is increased. This can prevent the drawer 4 from automatically closing when the user touches the drawer 4 when putting items in or taking them out, and can improve the accuracy of the operation of the automatic opening and closing function of the drawer 4.

[0045] Referring to FIG. 4 and FIG. 5, in this embodiment, the method of opening and closing the drawer 4 of the refrigerator 1 is as follows: a step of starting a counter count at the same time as acquiring the pulse signal; a step of incrementing the counter value by one for each pulse when it is determined based on the pulse signal that the drawer 4 is performing the opening operation; a step of decreasing the counter value by one every time the pulse signal increases when it is determined that the drawer 4 is performing the closing operation based on the pulse signal; resetting the counter to zero if it is detected that the drawer 4 is fully closed; The method may further include a step of obtaining position information for a fully closed state of the drawer 4 based on the value of the counter and the movement distance of the drawer 4 corresponding to one of the pulses stored in advance.

[0046] In this way, it is possible to accurately grasp the position information of drawer 4 based on the pulse signal, know the size of the opening of drawer 4, and realize control to stop drawer 4 at a specific position, etc. Of course, in other embodiments of the present invention, it is also possible to obtain the position information of drawer 4 using a single pulse signal.

[0047] Furthermore, this embodiment provides a computer-readable storage medium that stores a computer program, and when the computer program is executed by a processor, the method for opening and closing a drawer 4 of a refrigerator 1 according to any one of the above embodiments is performed.

[0048] Furthermore, in this embodiment, the refrigerator 1 includes a storage device and a processor, and the storage device stores a computer program executable on the processor. When the processor executes the computer program, the method for opening and closing a drawer 4 of the refrigerator 1 described in any of the above embodiments is performed.

[0049] As described above, the method, medium, and refrigerator 1 for opening and closing drawer 4 of refrigerator 1 of the present invention acquire pulse signals from pulse module 5, and when the number of pulses reaches a predetermined value, acquire the movement direction of drawer 4 based on the pulse signal. This solves the problem in the prior art that the weight of freezer drawer 4 and the items in it are heavy, making it difficult for some people, such as the elderly and children, to push and pull, making it inconvenient to use.

[0050] By adopting the technical solution of this application, it is possible to combine the user's manual pushing and pulling of the drawer 4 with the opening and closing of the drawer 4 by electric drive, and the user can activate the automatic opening and closing function of the drawer 4 by pulling or pushing the drawer 4, without the need for an additional operating structure, and the opening and closing of the drawer 4 by the drive module 6 can be accurately controlled, preventing the drive module 6 from malfunctioning due to incorrect contact by the user and facilitating user use.

[0051] Although the present specification is described according to the embodiments, it should be understood that each embodiment does not include only independent technical solutions. This description of the specification is for clarity only, and those skilled in the art can view the specification as a whole and appropriately combine the technical solutions of each embodiment to form other embodiments that can be understood by those skilled in the art.

[0052] The above detailed description is merely a specific description of the possible embodiments of the present invention, and does not limit the scope of protection of the present invention. Any equivalent embodiments or modifications that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for opening and closing a refrigerator drawer, comprising: acquiring a pulse signal of a pulse module, wherein the pulse module is activated to generate a pulse signal when the drawer moves, the movement of the drawer including an opening action and a closing action; acquiring the number of pulses of the pulse signal; When the number of pulses reaches a predetermined value, obtaining the moving direction of the drawer based on the pulse signal; and actuating a drive module to continue moving the drawer in its current direction of movement. A method for opening and closing a refrigerator drawer.

2. Before "activating the drive module to continue moving the drawer in the current direction of movement" obtaining a moving speed of the drawer based on the pulse signal; and determining whether the moving speed is within a predetermined range. If the sensor is within the predetermined range, the driving module is activated, and if the sensor is not within the predetermined range, the driving module is not activated.

2. The method for opening and closing a drawer of a refrigerator according to claim 1.

3. the predetermined range includes a first predetermined range and a second predetermined range, a step of determining whether or not the moving speed of the drawer is within the first predetermined range when it is determined based on the pulse signal that the drawer is performing the opening operation; and when it is determined based on the pulse signal that the drawer is performing the closing operation, determining whether or not the moving speed of the drawer is within the second predetermined range; the upper limit value of the first predetermined range is the same as the upper limit value of the second predetermined range, and the lower limit value of the first predetermined range is smaller than the lower limit value of the second predetermined range; 3. The method for opening and closing a drawer of a refrigerator according to claim 2.

4. Before "activating the drive module to continue moving the drawer in the current direction of movement" obtaining a movement distance of the drawer based on the pulse signal; and determining whether the movement distance of the drawer reaches a predetermined value; If the predetermined value is reached, the driving module is started, and if the predetermined value is not reached, the driving module is not started.

2. The method for opening and closing a drawer of a refrigerator according to claim 1.

5. the predetermined value includes a first predetermined value and a second predetermined value; a step of determining whether or not a movement distance of the drawer has reached the first predetermined value when it is determined based on the pulse signal that the drawer is performing the opening operation; and when it is determined based on the pulse signal that the drawer is performing the closing operation, determining whether or not the movement distance of the drawer has reached the second predetermined value; The first predetermined value is smaller than the second predetermined value.

2. The method for opening and closing a drawer of a refrigerator according to claim 1.

6. the pulse signal includes a first pulse signal and a second pulse signal, the first pulse signal and the second pulse signal have the same frequency but a phase difference of 90 degrees; When the drawer performs the opening operation, the first pulse signal is delayed in phase by 90 degrees from the second pulse signal, When the drawer performs the closing operation, the first pulse signal has a phase leading by 90 degrees relative to the second pulse signal.

2. The method for opening and closing a drawer of a refrigerator according to claim 1.

7. The step of "obtaining the moving direction of the drawer based on the pulse signal" acquiring a first phase point at which the first pulse signal changes from a high level to a low level or from a low level to a high level, or acquiring a second phase point at which the second pulse signal changes from a high level to a low level or from a low level to a high level; determining whether the first pulse signal and the second pulse signal are at the same level within a 90-degree phase range before the first phase point, or determining whether the first pulse signal and the second pulse signal are at the same level within a 90-degree phase range before the second phase point; determining that the drawer is performing the opening operation when the first pulse signal and the second pulse signal are at different levels within a 90-degree phase range before the first phase point, or when the first pulse signal and the second pulse signal are at the same level within a 90-degree phase range before the second phase point; determining that the drawer is performing the closing operation when the first pulse signal and the second pulse signal are at the same level within a 90 degree phase range before the first phase point, or when the first pulse signal and the second pulse signal are at different levels within a 90 degree phase range before the second phase point; 7. The method for opening and closing a drawer of a refrigerator according to claim 6.

8. The method further includes the steps of: obtaining in advance the number of pulses of the pulse signal generated by the pulse module when the drawer performs the opening or closing operation by a predetermined distance; and obtaining and storing a moving distance of the drawer corresponding to one of the pulses according to a ratio of the predetermined distance to the number of pulses.

2. The method for opening and closing a drawer of a refrigerator according to claim 1.

9. The step of "obtaining the movement distance of the drawer based on the pulse signal" acquiring the number of pulses of the pulse signal; calculating a movement distance of the drawer based on the number of pulses of the pulse signal and a movement distance of the drawer corresponding to one of the pulse signals stored in advance; 9. The method for opening and closing a drawer of a refrigerator according to claim 8.

10. The step of "obtaining the moving speed of the drawer based on the pulse signal" obtaining a movement distance of the drawer based on the pulse signal; obtaining a movement time of the drawer based on the pulse signal; and acquiring a moving speed of the drawer based on a ratio of a moving distance of the drawer to a moving time of the drawer.

3. The method for opening and closing a drawer of a refrigerator according to claim 2.

11. a step of starting a counter count at the same time as acquiring the pulse signal; a step of incrementing the counter value by one for each pulse when it is determined based on the pulse signal that the drawer is performing the opening operation; a step of decreasing the counter value by one for each pulse when it is determined based on the pulse signal that the drawer is performing the closing operation; resetting the counter to zero if it detects that the drawer is fully closed; and acquiring position information for a fully closed state of the drawer based on the value of the counter and a movement distance of the drawer corresponding to one of the pulses stored in advance.

9. The method for opening and closing a drawer of a refrigerator according to claim 8.

12. the drive module includes a gear coupled to the drawer and a motor coupled to the gear, and when the motor is activated, the motor drives the gear to move the drawer; when the motor is not activated, the drawer moves under the action of an external force and simultaneously rotates the gear; the pulse module is disposed on the gear, and the rotation of the gear activates the pulse module to generate the pulse signal; a clutch is disposed between the motor and the gear; When a signal to start the motor is received, the clutch is controlled to connect the motor and the gear; When it is detected that the drawer has stopped, the clutch is controlled to release the connection between the motor and the gear.

2. The method for opening and closing a drawer of a refrigerator according to claim 1.

13. A computer-readable storage medium, comprising: A computer program is stored therein, When the computer program is executed by a processor, the method for opening and closing a refrigerator drawer according to claim 1 is carried out. A computer-readable storage medium comprising:

14. A refrigerator, a storage device and a processor, wherein the storage device stores a computer program executable on the processor, and when the processor executes the computer program, the method for opening and closing a refrigerator drawer according to claim 1 is performed. A refrigerator characterized by:

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