Refrigerator drawer opening and closing method, medium, and refrigerator

Abstract

The application provides a refrigerator drawer opening and closing method, a medium and a refrigerator. The refrigerator drawer opening and closing method comprises the following steps: obtaining a pulse signal of a pulse module, the pulse module is triggered to generate the pulse signal when the drawer moves, the movement of the drawer comprises opening movement and closing movement; obtaining the number of pulses of the pulse signal; when the number of pulses reaches a preset value, obtaining the movement direction of the drawer according to the pulse signal; and starting a driving module to drive the drawer to continue moving in the current movement direction. The refrigerator drawer opening and closing method has the beneficial effect that the refrigerator drawer can be accurately driven to open and close.

Description

Technical Field

[0001] This invention relates to the field of household appliances, and more particularly to a method for opening and closing a refrigerator drawer, a medium, and a refrigerator. Background Technology

[0002] Refrigerators are used for everyday storage. Because the refrigerator compartment is used more frequently, it's typically located at the top of the refrigerator, while the freezer compartment is at the bottom. The freezer compartment can be designed as a pull-out drawer, including drawers for storing items, slide rails between the drawers and the freezer compartment, and drawer doors at the front of the drawers. Users can pull the drawer out of the freezer compartment to store items, and then push the drawer door back into the freezer compartment. However, this design has the following drawbacks: because the freezer drawers and the items inside are relatively heavy, pushing and pulling them can be difficult and inconvenient for some people, such as the elderly or children. Summary of the Invention

[0003] The purpose of this invention is to provide a refrigerator drawer opening and closing method, medium, and refrigerator. By acquiring the pulse signal of the pulse module, when the number of pulses reaches a preset value, the movement direction of the drawer can be obtained according to the pulse signal, thereby achieving accurate driving of the refrigerator drawer opening and closing.

[0004] To achieve the above-mentioned objective, one embodiment of the present invention provides a method for opening and closing a refrigerator drawer, comprising:

[0005] The pulse signal of the pulse module is acquired. When the drawer moves, the pulse module is triggered to generate a pulse signal. The movement of the drawer includes opening and closing movements.

[0006] Obtain the number of pulses in the pulse signal;

[0007] When the number of pulses reaches a preset value, the movement direction of the drawer is obtained based on the pulse signal;

[0008] The start-up drive module drives the drawer to continue moving in the current direction of motion.

[0009] As a further improvement to one embodiment of the present invention, the refrigerator drawer opening and closing method further includes, before "starting the drive module to drive the drawer to continue moving in the current direction of movement":

[0010] The speed of the drawer's movement is obtained based on the pulse signal;

[0011] Determine whether the movement speed is within a preset range;

[0012] If so, then start the driver module;

[0013] If not, the driver module will not be started.

[0014] As a further improvement to one embodiment of the present invention, the refrigerator drawer opening and closing method, wherein the preset range includes a first preset range and a second preset range, and the method further includes:

[0015] When the drawer is detected to be opening based on the pulse signal, it is determined whether the speed of the drawer is within a first preset range.

[0016] When the drawer is detected to be closing based on the pulse signal, it is determined whether the speed of the drawer is within a second preset range. The upper limit of the first preset range and the second preset range are the same, and the lower limit of the first preset range is less than the second preset range.

[0017] As a further improvement to one embodiment of the present invention, the refrigerator drawer opening and closing method further includes, before "starting the drive module to drive the drawer to continue moving in the current direction of movement":

[0018] The movement distance of the drawer is obtained based on the pulse signal;

[0019] Determine whether the movement distance of the drawer has reached a preset value;

[0020] If so, then start the driver module;

[0021] If not, the driver module will not be started.

[0022] As a further improvement to one embodiment of the present invention, the refrigerator drawer opening and closing method, wherein the preset value includes a first preset value and a second preset value, and the method further includes:

[0023] When the drawer is detected to be opening based on the pulse signal, it is determined whether the movement distance of the drawer reaches the first preset value;

[0024] When the drawer is detected to be closing based on the pulse signal, it is determined whether the movement distance of the drawer reaches the second preset value, wherein the first preset value is less than the second preset value.

[0025] As a further improvement to one embodiment of the present invention, the refrigerator drawer opening and closing method, wherein,

[0026] The pulse signal includes a first pulse signal and a second pulse signal, wherein the first pulse signal and the second pulse signal have the same frequency and are 90 degrees out of phase;

[0027] When the drawer performs the opening motion, the first pulse signal lags behind the second pulse signal by 90 degrees in phase.

[0028] When the drawer performs the closing motion, the first pulse signal is 90 degrees ahead of the second pulse signal in phase.

[0029] As a further improvement to one embodiment of the present invention, the refrigerator drawer opening and closing method, wherein the method of "obtaining the movement direction of the drawer according to the pulse signal" includes:

[0030] The first phase point at which the first pulse signal changes from high level to low level or from low level to high level is obtained, or the second phase point at which the second pulse signal changes from high level to low level or from low level to high level is obtained;

[0031] Determine 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 determine 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;

[0032] If 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 if 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, then the drawer performs the opening movement.

[0033] If 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 if the first pulse signal and the second pulse signal are at different levels within a 90-degree phase range before the second phase point, then the drawer performs the closing movement.

[0034] As a further improvement of one embodiment of the present invention, the refrigerator drawer opening and closing method includes: pre-acquiring the number of pulses of the pulse signal generated by the pulse module when the drawer performs the opening movement or the closing movement reaches a preset distance; and obtaining and storing the movement distance of the drawer corresponding to one pulse based on the ratio of the preset distance to the number of pulses.

[0035] As a further improvement to one embodiment of the present invention, the refrigerator drawer opening and closing method, wherein the method of "obtaining the movement distance of the drawer according to the pulse signal" includes:

[0036] Obtain the number of pulses in the pulse signal;

[0037] The movement distance of the drawer is calculated based on the number of pulses in the pulse signal and the movement distance of the drawer corresponding to a pre-stored pulse signal.

[0038] As a further improvement to one embodiment of the present invention, the refrigerator drawer opening and closing method, wherein the method of "obtaining the movement speed of the drawer based on a pulse signal" includes:

[0039] The movement distance of the drawer is obtained based on the pulse signal;

[0040] The movement time of the drawer is obtained based on the pulse signal;

[0041] The speed of the drawer is obtained by the ratio of the distance the drawer travels to the time the drawer travels.

[0042] As a further improvement to one embodiment of the present invention, the refrigerator drawer opening and closing method further includes:

[0043] Simultaneously with acquiring the pulse signal, start the counter to count;

[0044] If the drawer is detected to be opening based on the pulse signal, the counter value is incremented by 1 for each additional pulse.

[0045] If the drawer is detected to be closing based on the pulse signal, the counter is decremented by 1 for each additional pulse.

[0046] If the drawer is detected to be fully closed, the counter is reset to zero;

[0047] Based on the value of the counter and the movement distance of the drawer corresponding to a pre-stored pulse, the position information of the drawer relative to the fully closed state is obtained.

[0048] As a further improvement to one embodiment of the present invention, the refrigerator drawer opening and closing method includes a drive module comprising a gear driven by the drawer and a motor driven by the gear. When the motor is started, the motor drives the gear to move the drawer. When the motor is not started, the drawer moves under the action of an external force, simultaneously driving the gear to rotate. A pulse module is disposed at the gear, and the rotation of the gear triggers the pulse module to generate the pulse signal. A clutch is disposed between the motor and the gear. The method further includes:

[0049] When a signal to start the motor is received, the clutch is controlled to connect the motor and the gear transmission.

[0050] When the drawer stops moving, the clutch is controlled to disengage the motor and the gear from the transmission.

[0051] To achieve the above-mentioned objectives, one embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the refrigerator drawer opening and closing method described in any of the above embodiments.

[0052] To achieve the above-mentioned objectives, one embodiment of the present invention provides a refrigerator, wherein the refrigerator includes a memory and a processor, the memory stores a computer program that can run on the processor, and when the processor executes the computer program, it implements the steps of the refrigerator drawer opening and closing method described in any of the above embodiments.

[0053] Compared with the prior art, the present invention obtains the pulse signal of the pulse module, and when the number of pulses reaches a preset value, obtains the movement direction of the drawer according to the pulse signal. Its beneficial effect is that it can accurately drive the opening and closing of the refrigerator drawer. Attached Figure Description

[0054] Figure 1 This is a schematic diagram of the structure of a refrigerator according to an embodiment of the present invention;

[0055] Figure 2 yes Figure 1 The diagram shows the structure of the drive module and slide rail between the drawer and the side wall of the storage compartment.

[0056] Figure 3 yes Figure 1 The diagram shows the structure of the pulse module in the refrigerator shown.

[0057] Figure 4 yes Figure 3 The diagram shows the pulse signal generated by the pulse module when the drawer is opened.

[0058] Figure 5 yes Figure 3 The diagram shows the pulse signal generated by the pulse module when the drawer closes.

[0059] Figure 6 This is a flowchart of a refrigerator drawer opening and closing method according to an embodiment of the present invention. Detailed Implementation

[0060] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0061] Reference Figure 1In one specific embodiment of the present invention, a refrigerator 1 is provided. The refrigerator 1 may include a cabinet 2. The cabinet 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 variable temperature compartment, etc. In this embodiment, up and down refers to the height direction of the refrigerator 1, front and back refers to the depth direction of the refrigerator 1, and the opening of the storage compartment 3 faces forward.

[0062] The refrigerator 1 may include a pull-out drawer 4 disposed within the storage compartment 3. Preferably, in this embodiment, the drawer 4 may be disposed in the freezer compartment. The front end of the drawer 4 may be provided with a handle for pulling out the drawer 4. Of course, in other embodiments, the drawer 4 may also be disposed in the refrigerator compartment, the variable temperature compartment, etc.

[0063] Reference Figures 1 to 6 Furthermore, in this embodiment, a method for opening and closing a refrigerator drawer 4 is provided, which may include:

[0064] The pulse signal of the pulse module 5 is acquired. When the drawer 4 moves, the pulse module 5 is triggered to generate a pulse signal. The movement of the drawer 4 may include opening and closing movements.

[0065] Obtain the number of pulses in the pulse signal;

[0066] When the number of pulses reaches a preset value, the movement direction of the drawer 4 is obtained based on the pulse signal;

[0067] The start-up drive module 6 drives the drawer 4 to continue moving in the current direction.

[0068] Reference Figure 2 and Figure 3 Furthermore, in this embodiment, the drive module 6 may include a gear 61 that is driven by the drawer 4, and a motor that is driven by the gear 61. When the motor is started, the motor can drive the gear 61 to move the drawer 4. When the motor is not started, the drawer 4 can move under the action of an external force, thereby driving the gear 61 to rotate. The pulse module 5 may be disposed at the gear 61, and the rotation of the gear 61 triggers the pulse module 5 to generate the pulse signal.

[0069] In this embodiment, a slide rail 7 may be provided between the drawer 4 and the side wall of the storage compartment 3. The slide rail 7 may include a fixed rail fixedly provided on the side wall of the storage compartment 3, and a movable rail fixedly provided on the side wall or bottom wall of the drawer 4.

[0070] The motor and gear 61 can be fixedly installed on the fixed rail of the storage compartment 3. A rack 71 can be fixedly installed 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 drives the rack 71 on the movable rail to move, and the drawer 4 moves accordingly. When the user pulls out the drawer 4, the rack 71 moves with the drawer 4, and the gear 61 rotates accordingly.

[0071] The motor can be a motor that can rotate forward and reverse and adjust its speed to realize the opening and closing motion of drawer 4 and to realize the speed control of drawer 4.

[0072] The pulse module 5 may include a magnet 51 and a Hall sensor 52 that are configured to work together.

[0073] Preferably, a first driven wheel can be provided on the gear shaft of gear 61. A second driven wheel 53 can be meshed on one side of the first driven wheel. There can be a plurality of magnets 51, which can be evenly distributed on the rim of the second driven wheel 53. A Hall sensor 52 can be fixedly provided around the second driven wheel 53. When gear 61 rotates, the magnets 51 on the second driven wheel 53 rotate with gear 61. When the magnets 51 pass the Hall sensor 52, they can trigger the Hall sensor 52 to generate a pulse signal.

[0074] Of course, in other embodiments of the present invention, the magnet 51 may 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 that when the drawer 4 moves, the pulse module 5 can be triggered to generate a periodic pulse signal.

[0075] Of course, in other embodiments of the present invention, the pulse module 5 may also employ a structure that performs similar functions to the magnet 51 and the Hall sensor 52. For example, the magnet 51 may be replaced with a light-shielding plate and a light-blocking plate spaced apart, and the Hall sensor 52 may be replaced with a photoelectric sensor.

[0076] Reference Figure 2 and Figure 3 Furthermore, in this embodiment, a clutch may be provided between the motor and the gear 61, and the method may further include:

[0077] When a signal to start the motor is received, the clutch is controlled to connect the motor and the gear 61 in a transmission connection;

[0078] When the drawer 4 stops moving, the clutch is controlled to disengage the motor and the gear 61 from transmission.

[0079] In practical use, when drawer 4 stops moving, the motor and gear 61 are disengaged by controlling the clutch, which can prevent the user from pushing or pulling drawer 4 due to the transmission connection between gear 61 and motor, so that the user can pull or push drawer 4 with less force.

[0080] When the user pulls the drawer 4 outward from its stationary position, the drawer 4 drives the gear 61 to rotate, and the magnet 51 rotates accordingly, triggering the Hall sensor 52 to generate a pulse signal.

[0081] When the number of pulse signals reaches a certain amount, it indicates that the user wants to open or close drawer 4, rather than accidentally touching drawer 4 and causing it to move. Therefore, the motor can be started, and the clutch can be controlled to connect the motor and gear 61, so that the motor drives gear 61 to drive drawer 4 to continue to move in the direction that the user pushes or pulls.

[0082] This configuration allows for a combination of manual push-pull opening and closing of drawer 4 and electric drive opening and closing of drawer 4. Users can trigger the automatic opening and closing function of drawer 4 by pulling or pushing it without the need for an additional triggering structure. This enables accurate control of the drive module 6 to open and close drawer 4, avoiding accidental activation of the drive module 6 due to user touch, and making it convenient for users.

[0083] Reference Figures 3 to 5 Furthermore, in this embodiment, the refrigerator 1 drawer 4 opening and closing method includes a pulse signal that may include a first pulse signal 81 and a second pulse signal 82, wherein the first pulse signal 81 and the second pulse signal 82 have the same frequency and are 90 degrees out of phase.

[0084] When the drawer 4 performs the opening movement, the first pulse signal 81 lags behind the second pulse signal 82 by 90 degrees in phase.

[0085] When the drawer 4 performs the closing movement, the first pulse signal 81 is 90 degrees ahead of the second pulse signal 82 in phase.

[0086] In this embodiment, the pulse module 5 may include two Hall sensors 52 that cooperate with the magnet 51. The two Hall sensors 52 can be set at different positions so that when the magnet 51 rotates with the gear 61, the two Hall sensors 52 are triggered to generate a first pulse signal 81 and a second pulse signal 82 with different phases but the same frequency. Through the first pulse signal 81 and the second pulse signal 82, the movement direction, movement distance, and movement speed of the drawer 4 can be accurately determined.

[0087] Reference Figure 4 and Figure 5Furthermore, in this embodiment, the method for "obtaining the movement direction of the drawer 4 based on the pulse signal" may include:

[0088] The first phase point at which the first pulse signal 81 changes from high level to low level or from low level to high level is obtained, or the second phase point at which the second pulse signal 82 changes from high level to low level or from low level to high level is obtained;

[0089] Determine 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 determine 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;

[0090] If 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 if 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, then the drawer 4 performs the opening movement.

[0091] If 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 if 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, then the drawer 4 performs the closing movement.

[0092] This configuration enables the accurate determination of the movement direction of drawer 4 by comparing the first pulse signal 81 and the second pulse signal 82.

[0093] Reference Figure 4 and Figure 5 Furthermore, in this embodiment, the number of pulses of the pulse signal generated by the pulse module 5 when the drawer 4 performs the opening or closing movement to a preset distance can be obtained in advance. Based on the ratio of the preset distance to the number of pulses, the movement distance of the drawer 4 corresponding to one pulse can be obtained and stored.

[0094] This setup enables accurate determination of the correspondence between the number of pulses in the pulse signal and the movement distance of drawer 4.

[0095] Reference Figure 4 and Figure 5 Furthermore, in this embodiment, the method for "obtaining the movement distance of the drawer 4 based on the pulse signal" may include:

[0096] Obtain the number of pulses in the pulse signal;

[0097] The movement distance of the drawer 4 is calculated based on the number of pulses in the pulse signal and the movement distance of the drawer 4 corresponding to a pre-stored pulse signal.

[0098] This setup allows for accurate determination of the movement distance of drawer 4 based on pulse signals.

[0099] Reference Figure 4 and Figure 5 Furthermore, in this embodiment, the method for "obtaining the movement speed of drawer 4 based on pulse signals" may include:

[0100] The movement distance of the drawer 4 is obtained based on the pulse signal;

[0101] The movement time of the drawer 4 is obtained based on the pulse signal;

[0102] The speed of the drawer 4 is obtained by the ratio of the distance traveled by the drawer 4 to the time taken to travel by the drawer 4.

[0103] This setup allows for accurate determination of the movement speed of drawer 4 based on pulse signals.

[0104] Furthermore, in this embodiment, before "starting the drive module 6 to drive the drawer 4 to continue moving in the current direction of movement", the following may also be included:

[0105] The movement speed of drawer 4 is obtained based on the pulse signal;

[0106] Determine whether the movement speed is within a preset range;

[0107] If so, then the driver module 6 is started;

[0108] If not, then driver module 6 will not be started.

[0109] In practical use, when drawer 4 moves slowly, the user may accidentally touch drawer 4, thus eliminating the need to start the motor to drive drawer 4 and avoid incorrect opening and closing of drawer 4 due to accidental touch. Therefore, when the movement speed of drawer 4 is found to be below the preset range, the drive module 6 does not need to be started.

[0110] When the drawer 4 moves too fast, that is, when the user pulls the drawer 4 at a fast speed, even if the drive module 6 is activated, the drive module 6 may not be able to play a good driving role, or may even hinder the movement of the drawer 4 or cause damage to the drawer 4 and the movement module. In addition, it may also cause injury to the user. Therefore, when the movement speed of the drawer 4 is greater than the preset range, the drive module 6 may not be activated.

[0111] Furthermore, in this embodiment, the preset range may include a first preset range and a second preset range, and the method may further include:

[0112] When the drawer 4 is detected to be opening based on the pulse signal, it is determined whether the speed of the drawer 4 is within a first preset range.

[0113] When the drawer 4 is closed according to the pulse signal, it is determined whether the movement speed of the drawer 4 is within a second preset range. The upper limit of the first preset range and the second preset range are the same, and the lower limit of the first preset range is less than the second preset range.

[0114] In this embodiment, different preset ranges can be set for the movement speed of opening and closing drawer 4. When the user pulls drawer 4 outward to trigger drive module 6, the minimum movement speed requirement of drawer 4 is low, while when the user pushes drawer 4 inward to trigger drive module 6, the minimum movement speed requirement of drawer 4 is high. This avoids the drawer 4 from automatically closing due to the user touching it when storing or retrieving items, and improves the accuracy of the automatic opening and closing function of drawer 4.

[0115] Furthermore, in this embodiment, before "starting the drive module 6 to drive the drawer 4 to continue moving in the current direction of movement", the following may also be included:

[0116] The movement distance of the drawer 4 is obtained based on the pulse signal;

[0117] Determine whether the movement distance of the drawer 4 has reached a preset value;

[0118] If so, then the driver module 6 is started;

[0119] If not, then the driver module 6 will not be started.

[0120] This setting enables accurate opening and closing of drawer 4, preventing accidental opening and closing of drawer 4 due to user touch, and improving the accuracy of the automatic opening and closing function of drawer 4.

[0121] Furthermore, in this embodiment, the preset value may include a first preset value and a second preset value, and the method may further include:

[0122] When the drawer 4 is detected to be opening based on the pulse signal, it is determined whether the movement distance of the drawer 4 has reached the first preset value;

[0123] When the drawer 4 is detected to be closing according to the pulse signal, it is determined whether the movement distance of the drawer 4 reaches the second preset value, and the first preset value is less than the second preset value.

[0124] In this embodiment, different preset values ​​can be set for the movement distance of opening and closing drawer 4. When the user pulls drawer 4 outward to trigger drive module 6, the minimum movement distance requirement of drawer 4 is low, while when the user pushes drawer 4 inward to trigger drive module 6, the minimum movement distance requirement of drawer 4 is high. This avoids the drawer 4 from automatically closing due to the user touching it when storing or retrieving items, and improves the accuracy of the automatic opening and closing function of drawer 4.

[0125] Reference Figure 4 and Figure 5 Furthermore, in this embodiment, the method for opening and closing the refrigerator drawer 4 may further include:

[0126] Simultaneously with acquiring the pulse signal, start the counter to count;

[0127] If the drawer 4 is detected to be opening based on the pulse signal, the counter value is incremented by 1 for each additional pulse.

[0128] If the drawer 4 is detected to be closing based on the pulse signal, the counter is decremented by 1 for each additional pulse.

[0129] If the drawer 4 is detected to be fully closed, the counter is reset to zero;

[0130] Based on the value of the counter and the movement distance of the drawer 4 corresponding to a pre-stored pulse, the position information of the drawer 4 relative to the fully closed state is obtained.

[0131] This configuration allows for accurate determination of the drawer 4's position information based on pulse signals, thereby determining the size of the drawer 4's opening and enabling control to stop the drawer 4 at a specific position. Of course, in other embodiments of the invention, the position information of the drawer 4 can also be obtained using a single pulse signal.

[0132] Furthermore, in this embodiment, a computer-readable storage medium is provided, on which a computer program is stored, wherein when the computer program is executed by a processor, it implements the steps of the refrigerator 1 drawer 4 opening and closing method described in any of the above embodiments.

[0133] Furthermore, in this embodiment, the refrigerator 1 may include a memory and a processor. The memory stores a computer program that can run on the processor. When the processor executes the computer program, it implements the steps in the refrigerator 1 drawer 4 opening and closing method described in any of the above embodiments.

[0134] In summary, the opening and closing method, medium, and refrigerator 1 of the refrigerator 1 drawer 4 in this invention, by acquiring the pulse signal of the pulse module 5, and when the number of pulses reaches a preset value, the movement direction of the drawer 4 is obtained according to the pulse signal, which can solve the problem in the prior art that the weight of the freezer drawer 4 and the items inside the drawer 4 is relatively heavy, making it difficult and inconvenient for some people such as the elderly and children to push and pull.

[0135] By adopting the technical solution in this application, it is possible to combine manual push and pull of the drawer 4 for opening and closing with electric drive of the drawer 4 for opening and closing. This allows the user to trigger the automatic opening and closing function of the drawer 4 by pulling or pushing it, without the need for an additional triggering structure. It can accurately control the drive module 6 to drive the opening and closing of the drawer 4, avoiding the erroneous start of the drive module 6 due to accidental touch by the user, and making it convenient for the user to use.

[0136] 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.

[0137] 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 refrigerator drawer opening and closing method, characterized by, The method comprises: acquiring a pulse signal of a pulse module, the pulse module being triggered to generate a pulse signal when the drawer is moving, the movement of the drawer including opening movement and closing movement; acquiring the number of pulses of the pulse signal; when the number of pulses reaches a preset value, acquiring the movement direction of the drawer according to the pulse signal; starting a driving module to drive the drawer to continue moving in the current movement direction; the driving module comprises a gear in transmission connection with the drawer and a motor in transmission connection with the gear, when the motor is started, the motor drives the gear to drive the drawer to move, when the motor is not started, the drawer moves under the action of an external force while driving the gear to rotate, the pulse module is arranged at the gear, the rotation of the gear triggers the pulse module to generate the pulse signal, a clutch is arranged between the motor and the gear, and the method further comprises: when a signal for starting the motor is acquired, controlling the clutch to make the motor and the gear in transmission connection; when it is detected that the drawer stops moving, controlling the clutch to make the motor and the gear disengage from transmission; before "starting the driving module to drive the drawer to continue moving in the current movement direction", the method further comprises: acquiring the movement speed of the drawer according to the pulse signal; determining whether the movement speed is in a preset range; if yes, starting the driving module; if no, not starting the driving module.

2. The refrigerator drawer opening and closing method according to claim 1, characterized in that, The preset range includes a first preset range and a second preset range, and the method further comprises: when it is acquired according to the pulse signal that the drawer is moving in the opening movement, determining whether the movement speed of the drawer is in the first preset range; when it is acquired according to the pulse signal that the drawer is moving in the closing movement, determining whether the movement speed of the drawer is in the second preset range, the upper limit values of the first preset range and the second preset range are the same, and the lower limit value of the first preset range is smaller than that of the second preset range.

3. The refrigerator drawer opening and closing method according to claim 1, wherein, The preset value includes a first preset value and a second preset value, and the method further comprises: when it is acquired according to the pulse signal that the drawer is moving in the opening movement, determining whether the movement distance of the drawer reaches the first preset value; when it is acquired according to the pulse signal that the drawer is moving in the closing movement, determining whether the movement distance of the drawer reaches the second preset value, the first preset value being smaller than the second preset value.

4. The refrigerator drawer opening and closing method according to claim 1, wherein the pulse signal includes a first pulse signal and a second pulse signal, the first pulse signal and the second pulse signal having the same frequency and a phase difference of 90 degrees; when the drawer is moving in the opening movement, the phase of the first pulse signal lags behind that of the second pulse signal by 90 degrees; when the drawer is moving in the closing movement, the phase of the first pulse signal leads that of the second pulse signal by 90 degrees.

5. The refrigerator drawer opening and closing method according to claim 4, wherein, The method of "acquiring the movement direction of the drawer according to the pulse signal" comprises: acquiring a first phase point at which the first pulse signal changes from high level to low level or from low level to high level, or a second phase point at which the second pulse signal changes from high level to low level or from low level to 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; if 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 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, the drawer makes the opening movement; if 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 the first pulse signal and the second pulse signal are at different levels within a 90-degree phase range before the second phase point, the drawer makes the closing movement.

6. The refrigerator drawer opening and closing method according to claim 1, wherein, when the drawer makes the opening movement or the closing movement by a preset distance, triggering the pulse number of the pulse signal generated by the pulse module, and acquiring the movement distance of the drawer corresponding to the pulse according to the ratio of the preset distance to the pulse number and storing the movement distance.

7. The refrigerator drawer opening and closing method according to claim 6, wherein, The method of "acquiring the movement distance of the drawer according to the pulse signal" comprises: acquiring the pulse number of the pulse signal; calculating the movement distance of the drawer according to the pulse number of the pulse signal and the movement distance of the drawer corresponding to the pulse signal stored in advance.

8. The refrigerator drawer opening and closing method according to claim 1, wherein, The method of "acquiring the movement speed of the drawer according to the pulse signal" comprises: acquiring the movement distance of the drawer according to the pulse signal; acquiring the movement time of the drawer according to the pulse signal; acquiring the movement speed of the drawer according to the ratio of the movement distance of the drawer to the movement time of the drawer.

9. The refrigerator drawer opening and closing method according to claim 6, wherein, Further comprising: starting a counter to count while acquiring the pulse signal; if the opening movement of the drawer is acquired according to the pulse signal, the counter value is increased by 1 for each pulse; if the closing movement of the drawer is acquired according to the pulse signal, the counter value is decreased by 1 for each pulse; if the complete closing of the drawer is detected, the counter is cleared; acquiring the position information of the drawer relative to the complete closing state according to the value of the counter and the movement distance of the drawer corresponding to the pulse stored in advance.

10. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to realize the steps of the refrigerator drawer opening and closing method in any one of claims 1-9.

11. A refrigerator characterized by comprising: The refrigerator comprises a memory and a processor, the memory stores a computer program capable of running on the processor, and the processor realizes the steps of the refrigerator drawer opening and closing method in any one of claims 1-9 when executing the computer program.

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