WO2023208049A1

WO2023208049A1 - Ice dispensing apparatus control method, door assembly, and storage medium

Info

Publication number: WO2023208049A1
Application number: PCT/CN2023/090894
Authority: WO
Inventors: 赵斌堂; 刘龙; 王昊; 张延庆
Original assignee: 重庆海尔制冷电器有限公司; 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2022-04-29
Filing date: 2023-04-26
Publication date: 2023-11-02
Also published as: CN117006798A

Abstract

An ice discharging apparatus control method, a refrigerator door assembly (100), and a computer readable storage medium. The ice discharging apparatus control method comprises: after receiving an ice outlet opening signal, controlling the motor to run at a first pulse frequency in a first direction, so as to drive a cover plate assembly (220) to rotate from a closed position in which an ice outlet (212) is closed to an open position; and, when the motor has run a first preset number of revolutions, controlling the motor to turn off; wherein the motor is a self-locking motor, the rotation angle corresponding to the first preset number of revolutions is greater than the angle of the cover plate assembly rotating from the closed position to the extreme open position, and the first pulse frequency is greater than the rated pulse frequency of the motor.

Description

Ice dispensing device control method, door assembly and storage medium

Technical field

The invention relates to the field of home appliances, in particular to an ice discharging device control method, a door assembly and a storage medium.

Background technique

Some refrigerators are equipped with an ice making device. The refrigerator is also equipped with an ice storage bucket and an ice dispensing device connected to the ice storage bucket. The ice storage bucket is used to receive and store ice produced by the ice making device. The user can take out the ice in the ice storage bucket through the ice dispensing device. The ice discharging device is provided with a cover assembly and a driving device. The driving device can drive the cover assembly to open or close the ice outlet of the ice outlet device.

The driving device can be a motor with a self-locking function, but errors may occur during motor operation, resulting in the cover assembly not being able to completely seal the ice outlet.

Contents of the invention

In order to solve the above problems, the present invention proposes an ice discharge device control method, a door assembly and a storage medium. During the opening process, the motor-driven cover assembly operates at a higher pulse frequency than the motor's rated pulse frequency and is blocked in the fully open position.

In order to achieve one of the above-mentioned objects of the invention, one embodiment of the present invention provides a method for controlling an ice discharge device, which includes:

After receiving the signal to open the ice outlet, the control motor runs in the first direction at the first pulse frequency to drive the cover assembly to rotate from the closed position to the open position for closing the ice outlet;

When the motor runs the first preset number of revolutions, control the motor to turn off;

Wherein, the motor is a self-locking motor, the rotation angle corresponding to the first preset number of revolutions is greater than the angle at which the cover assembly rotates from the closed position to the limit open position, and the first pulse frequency is greater than The rated pulse frequency of the motor.

As a further improvement of one embodiment of the present invention, the ice discharge device control method further includes:

After receiving the signal to close the ice outlet, control the motor to run in the second direction to drive the cover assembly to rotate from the open position to the closed position;

When the motor runs the second preset number of revolutions, control the motor to turn off;

Wherein, the second direction is opposite to the first direction, and the rotation angle corresponding to the second preset number of revolutions is Greater than the angle at which the cover assembly rotates from the limit open position to the closed position.

As a further improvement of an embodiment of the present invention, the motor operates at a second pulse frequency along the second direction, and the second pulse frequency is smaller than the first pulse frequency.

As a further improvement of an embodiment of the present invention, the second pulse frequency is greater than or equal to the rated pulse frequency of the motor.

One embodiment of the present invention provides an ice dispensing device, including: the difference between the second pulse frequency and the rated pulse frequency of the motor is less than or equal to 10.

As a further improvement of one embodiment of the present invention, the motor is a stepper motor, and the method specifically includes:

After receiving the signal to open the ice outlet, the motor is controlled to run in the first direction for the first preset number of steps, and the motor is controlled to close. The rotation angle corresponding to the first preset number of steps is greater than the cover assembly. The angle of rotation from the closed position to the extreme open position;

After receiving the signal to close the ice outlet, the motor is controlled to run in the second direction for a second preset number of steps, and the motor is controlled to close. The rotation angle corresponding to the second preset number of steps is greater than that of the cover. The angle through which the plate assembly is rotated from the extreme open position to the closed position.

As a further improvement of an embodiment of the present invention, "controlling the motor to turn off when controlling the motor to run the first preset number of steps in the first direction," also includes:

When the motor runs for a preset number of opening steps, control the motor to continue running in the first direction;

When the motor continues to run the first preset number of locked-rotor steps, control the motor to turn off;

Wherein, the first preset number of steps is the sum of the preset number of opening steps and the first preset number of locked-rotor steps, and the rotation angle corresponding to the preset number of opening steps is equal to the rotation angle of the cover assembly from the closed position. At the angle of rotation to the extreme opening position, the first preset number of stalling steps is less than 100.

As a further improvement of an embodiment of the present invention, the second preset rotation number is smaller than the first preset rotation number. In order to achieve one of the above-mentioned objects of the invention, one embodiment of the present invention provides a refrigerator door assembly, which includes a door body and a dispenser provided on the door body. The door body includes a door shell and a door lining. The space between the shell and the door lining is filled with heat-insulating material, and an ice outlet channel is provided on the door body. The ice outlet channel runs through the door body. The ice outlet channel includes an ice outlet located on one side of the door lining. An ice inlet and an ice outlet placed on one side of the door shell; the door body is also equipped with a cover assembly for opening and closing the ice outlet and a motor that drives the cover assembly to rotate; The refrigerator door assembly also includes a limiting structure for limiting the limit opening position of the cover assembly; a memory and a processor, the memory stores a computer program that can run on the processor, and the processor When the computer program is executed, the ice dispensing device control method described in any of the above embodiments is implemented. step.

In order to achieve one of the above-mentioned objects of the invention, one embodiment of the present invention provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the ice dispensing device described in any of the above-mentioned embodiments is implemented. Control the steps in the method.

The ice dispensing device control method provided by the present invention uses a self-locking motor to drive the cover assembly. During the process of driving the cover assembly to open, the motor is controlled to run a first preset number of revolutions so that the theoretical rotation angle of the cover assembly is greater than the actual angle. The rotatable angle makes the motor stall when the drive cover assembly is opened to the extreme position. At the same time, when the motor drive cover is opened, it runs at the first pulse frequency greater than the motor operating pulse frequency, which can avoid the motor stalling. Rebound, thus ensuring a certain number of steps when the motor closes the cover and ensuring that the cover seals the ice outlet channel.

Description of the drawings

Figure 1 is a three-dimensional schematic diagram of a refrigerator door assembly according to an embodiment of the present invention;

Figure 2 is a schematic diagram of the disassembly of the refrigerator door assembly shown in Figure 1;

Figure 3 is a schematic three-dimensional view of the ice dispensing device according to an embodiment of the present invention;

Figure 4 is an exploded schematic diagram of the ice discharge device shown in Figure 2;

Figure 5 is a schematic cross-sectional view of the ice dispensing device described in Figure 3;

Figure 6 is a flow chart of the ice discharge device control method according to an embodiment of the present invention;

Figure 7 is a detailed flow chart of the ice discharge device control method according to an embodiment of the present invention;

Figure 8 is a schematic diagram of an ice dispensing device according to an embodiment of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of protection of the present invention.

Referring to FIGS. 1 to 3 , one embodiment of the present invention provides a refrigerator. The refrigerator includes a box body and a refrigerator door assembly 100 for opening and closing the box body. The storage compartments formed in the box include a refrigeration compartment and a freezing compartment. The refrigerator door assembly 100 may include a door 110 for opening and closing the box. The door 110 may include a door shell and a door lining. The door shell and the door lining may be filled with a thermal insulation material. The thermal insulation material may be foam. Material. The door 110 may include a door for opening and closing the refrigerated compartment. The refrigeration door and the freezing door used to open and close the freezing compartment.

An ice-making device can be provided in the refrigerator, an ice-making compartment can be provided on the refrigeration door of the refrigerator, and the ice-making device can be installed in the ice-making compartment. An ice storage bucket and a dispenser 300 can also be provided on the refrigeration door. The ice storage bucket can be installed inside the ice making compartment and placed under the ice making device for receiving and storing ice from the ice making device. The dispenser 300 may include an ice discharging device 200. The ice discharging device 200 may include an ice discharging channel 210 that runs through the door 110. The ice discharging channel 210 may be connected to the ice storage bucket. The user can use the dispenser 300 without opening the refrigerator door 110. In this case, take out the ice directly from the ice storage bucket.

Of course, an ice-making compartment for installing an ice-making device can also be provided inside the refrigeration compartment, and an ice storage bucket and distributor 300 can be provided on the refrigeration door, so that the ice from the ice-making device is directly discharged to the refrigeration door. The ice storage bucket is discharged through the distributor 300. Of course, the ice making device can also be installed in the freezing compartment or on the freezing door, and the dispenser 300 is installed on the freezing door.

In one embodiment of the present invention, the ice discharging device 200 includes an ice discharging channel 210. The ice discharging channel 210 can penetrate the door body 110 and has an ice inlet 211 placed on one side of the door lining and an ice inlet 211 placed on one side of the door shell. The opening 211 is opposite to the ice outlet 212. Among them, the ice inlet 211 can be connected with the ice storage bucket. The ice outlet 212 is provided with a cover assembly 220 and a driving device 230. The cover assembly 220 can open and close the ice outlet 212, and the driving device 230 is connected to the driving shaft 223 of the cover assembly 220 to drive the cover assembly 220 to rotate. The driving device 230 may include a motor and a transmission assembly, and the driving device 230 may be installed on the side wall of the dispenser housing 310 of the dispenser 300 .

The refrigerator door 110 can be provided with a control panel or buttons for controlling the driving device 230. The user can control the ice extraction through the control panel or buttons, and select the amount of ice to be extracted through the control panel or actively control the end of ice extraction when the ice amount reaches the demand. .

When the user issues an ice removal command, the control device in the refrigerator will start the motor of the driving device 230 to run in the first direction A to drive the cover assembly 220 to rotate and open the ice outlet 212. After the ice removal is completed, the motor will move in the first direction A. A rotates in the opposite second direction to drive the cover assembly 220 to close the ice outlet 212 .

The ice dispensing device 200 may also include a limiting structure. The limiting structure may limit the limit opening position of the cover assembly 220. When the motor rotates in the first direction A to drive the cover assembly 200 to rotate to a position that interferes with the limiting structure, the movement occurs. to the extreme open position.

The ice discharging device 200 may include an ice cube guide channel 250, which may be disposed on one side of the ice outlet. A dispenser recess 320 may be disposed on the outside of the refrigerator door 110, and the ice cube guide channel 250 may be located in the dispenser recess. Within 320. The cover assembly 200 can be placed inside the ice guide channel 250 , and the ice in the ice storage bucket is discharged from the ice outlet through the ice outlet, enters the ice guide channel 250 , and is discharged through the outlet of the ice guide channel 250 . The wall surface of the ice guide channel 250 forms a limiting structure. When the cover assembly 200 rotates to the extreme opening position, the cover assembly The member 200 interferes with the wall surface of the ice guide channel 250.

Referring to FIGS. 3 to 5 , the cover assembly 220 includes a bracket 221 and a sealing cover 222 . The bracket 221 and the sealing cover 222 are connected through a connecting shaft 224 . The driving device 230 can be connected to the driving shaft 223 of the bracket 221, and the driving device 230 can drive the bracket 221 to rotate and thereby drive the sealing cover 222 to rotate. The connecting shaft 224 can be disposed on the bracket 221, and the sealing cover 222 can be provided with a connecting hole 225 that matches the connecting shaft 224. The connecting shaft 224 and the connecting hole 225 can have a gap fit, so that the sealing cover 222 can wrap around the connecting shaft 224. The axis swings. When the driving assembly drives the cover assembly 220 to rotate and close the ice outlet 212, if due to tolerances or some other reasons, the sealing cover 222 does not fully match the ice outlet 212, or the sealing cover 222 is offset relative to the ice outlet 212. The tilt causes the upper or lower side of the sealing cover 222 to contact the ice outlet 212 first. The driving device 230 drives the cover assembly 220 to further rotate. Under the action of external force, the sealing cover 222 can automatically swing slightly around the connecting shaft 224, and the ice outlet 212 will be contacted first. One side of the ice outlet 212 is pressed into the ice outlet 212, so that the sealing cover 222 moves to the optimal position to seal the ice outlet 212.

In this embodiment, the sealing cover 222 includes a sealing cover 2221. The sealing cover 2221 is connected to the bracket 221. A silicone seal 2222 is also installed on the sealing cover 2221. The sealing cover 2221 and the silicone seal 2222 form a The space is filled with PE closed-cell foam to block the transmission of cold air. When the sealing cover 222 closes the ice outlet 212, the edge of the ice outlet 212 presses against the surface of the silicone seal 2222. The surface of the silicone seal 2222 in contact with the ice outlet 212 can be a spherical surface, thereby improving the sealing effect.

An elastic support member 240 is provided between the sealing cover 222 and the bracket 221. The contact position 241 of the elastic support member 240 and the sealing cover 222 is located on the side of the sealing cover 222 away from the driving shaft 223. The connecting shaft 224 is located between the driving shaft 223 and the contact position 241. between.

In this embodiment, the elastic support member 240 can have one end fixed to the bracket 221 and the other free end supported on the sealing cover 222. It can also have one end fixed to the sealing cover 222 and the other free end supported on the bracket 221. Or both ends are connected to the sealing cover 222 and the bracket 221 respectively. Of course, other structures for installing the elastic support member 240 may also be provided between the bracket 221 and the sealing cover 222 . There may be multiple contact points between the elastic support member 240 and the sealing cover 222 , as long as there is a contact position 241 located on the side of the connecting shaft 224 away from the driving shaft 223 .

In this embodiment, since the sealing cover 222 can swing around the connecting shaft 224 of the bracket 221, when the driving device 230 drives the cover assembly 220 to rotate, especially when the cover assembly 220 is in the position of opening the ice outlet 212 or in the During the process of opening the ice outlet 212, due to the gravity of the sealing cover 222, the side of the sealing cover 222 away from the drive shaft 223 has a tendency to tilt. In this way, the elastic support member 240 is used to support the seal, and the elastic support 240 is in contact with the seal. The contact position 241 of the cover 222 is arranged on the side of the sealing cover 222 away from the drive shaft 223, and the connecting shaft 224 is disposed between the drive shaft 223 and the contact position 241, so that the sealing cover can be avoided. 222 swings around the connecting shaft 224 under the action of gravity, causing the sealing cover 222 to tilt away from the drive shaft 223, which in turn causes the ice outlet 212 to appear between the sealing cover 222 away from the drive shaft 223 during the process of closing the cover assembly 220. gap.

At the same time, the elastic support member 240 is elastic and supports the sealing cover 222 without affecting the degree of freedom of the sealing cover 222 . Therefore, the sealing cover 222 can achieve a better sealing effect.

Furthermore, in one embodiment of the present invention, the center of gravity of the sealing cover 222 is located between the contact position 241 and the drive shaft 223 .

In this embodiment, the connecting shaft 224 can be disposed at a position corresponding to the center of gravity of the sealing cover 222 , and the connecting shaft 224 can also be disposed between the center of gravity of the sealing cover 222 and the driving shaft 223 . When the connecting shaft 224 is arranged between the center of gravity of the sealing cover 222 and the drive shaft 223, the contact position 241 of the elastic support member 240 and the sealing cover 222 can be set on the side of the center of gravity of the sealing cover 222 away from the drive shaft 223, that is, The center of gravity of the sealing cover 222 is set between the driving shaft 223 and the contact position 241. In this way, the elastic support member 240 can better avoid the deflection of the sealing cover 222 and balance the gravity of the sealing cover 222.

Further, in one embodiment of the present invention, the elastic support member 240 includes an elastic support rib 226 provided on one side of the free end of the bracket 221. The elastic support rib 226 can be integrally formed with the bracket 221, and the free end of the elastic support rib 226 is supported on Seal the lid 222 on. In this embodiment, the elastic support rib 226 extends from the free end of the bracket 221 toward the side closer to the driving shaft 223 . In this way, during the installation and manufacturing process, only the driving device 230, the bracket 221 and the sealing cover 222 need to be assembled, and the elastic support member 240 can be automatically supported in an appropriate position without manual adjustment of the position of the elastic support member 240.

Further, in an embodiment of the present invention, the connecting shaft 224 can be provided on the bracket 221, and the sealing cover 222 can be provided with a connecting hole 225 that matches the connecting shaft 224. The connecting shaft 224 can be clearance-fitted with the connecting hole 225 to connect Shaft 224 may be in point contact with seal cover 222. Specifically, in this embodiment, the sealing cover 222 may be provided with a supporting rib 226 , the supporting rib 226 is arranged at an angle to the connecting shaft 224 , the connecting shaft 224 is supported on the supporting rib 226 , and there is a gap between the connecting shaft 224 and the supporting rib 226 Point contact. Of course, the connecting shaft 224 can also be provided on the sealing cover 222, and the connecting hole 225 and the supporting rib 226 can be provided on the bracket 221.

In this embodiment, the support rib 226 is in a stepped shape, including a first support rib 2261 and a second support rib 2262 that is higher than the first support rib 2261. The connection surface between the first support rib 2261 and the second support rib 2262 is an inclined surface. , the connection between the first support rib 2261 and the second support rib 2262 is located in the center of the sealing cover 222 , the connecting shaft 224 is supported on the first support rib 2261 and is close to the connection between the first support rib 2261 and the second support rib 2262 at.

In this way, the sealing cover 222 can swing in any direction around the support point of the connecting shaft 224. When the driving device 230 drives the cover assembly 220 to close the ice outlet 212, no matter which side of the sealing cover 222 contacts the ice outlet 212 first The side walls of the sealing cover 222 can squeeze the sealing cover 222 and swing in other directions around the supporting ribs 226 under the action of external force. For example, the sealing cover 222 can move along the axis direction of the connecting shaft 224 and can also swing around the supporting ribs 226, so that when the cover is closed, When the plate assembly 220 is assembled, the sealing cover 222 can completely seal the ice outlet 212 .

Furthermore, in one embodiment of the present invention, the connecting shaft 224 is perpendicular to the supporting rib 226 , and the contact point of the connecting shaft 224 and the supporting rib 226 is located on the central axis of the sealing cover 222 . In this way, the sealing cover 222 can be placed in a relatively balanced position, and the sealing effect of the sealing cover 222 is better.

In the ice dispensing device 200 provided by this application, the sealing cover 222 has a certain degree of freedom. When the sealing cover 222 closes the ice outlet 212, the position of the sealing cover 222 can be automatically adjusted to match the ice outlet 212. At the same time, The elastic support member 240 is provided for supporting the sealing cover 222 and can prevent the sealing cover 222 from deflecting under the action of gravity. The overall sealing effect of the ice discharging device 200 is good.

Referring to Figures 3 and 6, one embodiment of the present invention also provides a method for controlling the ice dispensing device 200, including:

After receiving the signal to open the ice outlet 212, the control motor runs at the first pulse frequency along the first direction A to drive the cover assembly 220 to rotate from the closed position of closing the ice outlet 212 to the open position of opening the ice outlet 212;

When the motor runs the first preset number of revolutions, the motor is controlled to turn off;

The motor is a self-locking motor, the rotation angle corresponding to the first preset number of revolutions is greater than the angle at which the cover assembly 220 rotates from the closed position to the extreme open position, and the first pulse frequency is greater than the rated pulse frequency of the motor.

In this embodiment, when the user issues an ice removal instruction through the control panel or buttons on the refrigerator door 110, a signal to open the ice outlet 212 is sent to the control module corresponding to the ice outlet device 200 in the refrigerator. At this time, the motor The rotation drives the cover assembly 220 to open the ice outlet 212, and the ice cubes can slide out of the ice outlet channel 210.

In this embodiment, the motor in the driving device 230 corresponding to the cover assembly 220 is a self-locking motor. When the motor is not powered, it has a self-locking torque to lock the cover assembly 220 to close the ice outlet 212 The closed position or the open position of the ice outlet 212 does not need to be installed on the rotating shaft of the cover assembly 220 to assist the closing of the cover assembly 220 to provide a locking force for closing the cover assembly 220, and at the same time, the cover can be The plate assembly 220 is fixed in the open position.

When the motor runs according to the predetermined program, errors may occur. The actual rotation angle of the cover assembly 220 driven by the rotation of the motor may be smaller than the theoretical angle. However, since the self-locking motor also has critical locking torque, when the motor rotates When power is on, the motor can drive the cover assembly 220 to rotate. If the cover assembly 220 is interfered with and causes the motor to stall, and the stalling time is long and the torque to the motor is greater than the critical locking torque, the cover assembly 220 will Reverse rebound occurs.

In this way, if an error occurs when the motor opens the cover assembly 220, for example, it rotates 5 fewer turns, but no error occurs during the drive of the cover assembly 220 to return, then the cover assembly 220 may fail when closing. The locked-rotor duration is too long, causing the torque on the motor to be greater than the critical locking torque, causing the cover assembly 220 to rebound along the first direction A. A gap appears between the cover assembly 220 and the ice outlet 212, and the cover assembly 220 Even if there is a small gap between the ice outlet 212 and the ice outlet 212, condensation, cold leakage, etc. may occur.

In this embodiment, when the motor rotates in the first direction A to drive the cover assembly 220 to open the ice outlet 212, the motor is controlled to run a first preset number of revolutions, where the rotation angle corresponding to the first preset number of revolutions can be Under the theoretical condition that no error occurs during the rotation of the motor, the motor rotates the first preset number of revolutions to drive the cover assembly 220 to rotate through an angle. The rotation angle corresponding to the first preset number of revolutions is greater than the angle at which the cover assembly 220 rotates from the closed position to the extreme open position. It can be understood that if no error occurs during the rotation of the motor, the cover will be driven when the motor rotates in the first direction A. When the plate assembly 220 is opened, when the cover plate assembly 220 is driven to rotate to the extreme open position, the motor will continue to rotate.

When the motor rotates in the first direction A, it can run at a first pulse frequency higher than the rated pulse frequency of the motor. In this way, when the motor runs the first preset number of revolutions, the torque received by the motor is less than the critical locking torque, so that The motor will not generate rebound when driving the cover assembly to open. Especially after the cover assembly leaves the factory, when the cover assembly is used for the first time, due to the error in the distance from the closed position to the open position, it may cause blockage when opening. The rotation time is longer and the first pulse frequency is higher than the rated pulse frequency of the motor, which can avoid the rebound of the cover assembly, thereby ensuring the accuracy of the distance the cover assembly moves from the open position to the closed position, and ensuring that the cover assembly is The ice outlet can be sealed after closing.

In this embodiment, the closing position of the cover assembly 220 to close the ice outlet 212 may be a position where the cover assembly 220 contacts the ice outlet 212 . However, since the contact position between the sealing cover 222 of the cover assembly 220 and the ice outlet 212 can be elastically compressed, the closing position of the cover assembly 220 to close the ice outlet 212 can also be a position where the cover assembly 220 closes the ice outlet 212 and then continues toward the ice outlet. One side of the mouth 212 moves to a position where elastic deformation reaches a certain amount.

Further, in an embodiment of the present invention. The control method of the ice dispensing device 200 also includes:

After receiving the signal to close the ice outlet 212, control the motor to run in the second direction to drive the cover assembly 220 to rotate from the open position to the closed position;

When the motor runs the second preset number of revolutions, the motor is controlled to turn off.

The second direction is opposite to the first direction A, and the rotation angle corresponding to the second preset number of revolutions is greater than the angle at which the cover assembly 220 rotates from the limit open position to the closed position.

In this embodiment, the second preset number of revolutions may be smaller than the first preset number of revolutions. When the motor rotates to drive the cover assembly 220 to open the ice outlet 212, if there is no error in the motor, the motor drives the cover assembly 220 to rotate. It will continue to rotate when it reaches the closed position to avoid errors in the motor driving the cover assembly 220 to close, resulting in the cover assembly 220 not being closed in place. And when the motor drives the cover assembly 220 from the limit open position to the closed position, When the position is rotated, when the motor runs the second preset number of revolutions, the torque received by the motor is less than the critical locking torque, and the cover assembly 220 will not rebound.

At the same time, since the motor runs the first preset number of steps to eliminate errors during the process of opening and closing the cover assembly 220, it is possible to avoid the reduction of the actual rotatable angle when the cover assembly 220 is closed. Therefore, even during the process of closing the cover assembly 220, the motor The rotation angle corresponding to the rotation is greater than the angle at which the cover assembly 220 rotates from the extreme open position to the closed position, but within the preset range, the stall time of the motor will not be too long, which will not cause the cover assembly 220 to rebound. Can achieve better sealing effect.

In this embodiment, when the ice outlet 212 opening signal is received, the number of openings of the ice outlet 212 and/or the opening duration of the ice outlet 212 within the preset time period can also be recorded, and the ice outlet 212 can be opened according to the number of openings within the preset time period. The number of times and/or the opening duration of the ice outlet 212 controls the refrigeration start-up point temperature and the refrigeration shutdown point temperature of the ice making room.

When the temperature in the ice-making compartment is greater than the refrigeration start-up point, the refrigeration system is controlled to cool the ice-making compartment until the temperature in the ice-making compartment drops to the refrigeration shutdown point. Therefore, if the number of openings of the ice outlet 212 within the preset time period is greater than the preset number and/or the opening time of the ice outlet 212 is greater than the preset time, it can be determined that the user's demand for ice is high, and the ice making room can be adjusted at this time. The chamber matches the low refrigeration start point temperature and the low refrigeration shutdown point temperature to keep the temperature of the ice making compartment below the preset temperature range, or the number of ice making times can be increased. Correspondingly, if within the preset time period, the number of openings of the ice outlet 212 and/or the opening duration of the ice outlet 212 are both small, then the ice making room can be matched with a high refrigeration start point temperature and a high refrigeration shutdown point temperature, or , reduce the number of times the ice making device makes ice. In this way, the user's habits can be judged based on the opening data of the ice outlet 212, and the operation of the ice making system can be controlled.

Further, in an embodiment of the present invention, the motor runs at a second pulse frequency in the second direction, and the second pulse frequency is smaller than the first pulse frequency. In this embodiment, the second pulse frequency can be greater than or equal to the motor Rated pulse frequency.

In this embodiment, in the process of closing the cover plate assembly driven by the motor, in order to ensure the reliability of the cover plate assembly in closing the ice outlet, the motor requires a large torque. In order to avoid the cover plate from backlashing when closing the ice outlet. In this case, the torque received by the motor may be less than or equal to the rated torque of the motor. At this time, the second pulse frequency of the motor operation may be less than the first pulse frequency and greater than or equal to the rated pulse frequency of the motor.

In this embodiment, the difference between the second pulse frequency and the rated pulse frequency of the motor is less than or equal to 10. The second pulse frequency can be as close as possible to the rated pulse frequency of the motor, thereby ensuring that the motor drives the cover assembly to have as large a torque as possible during the closing process, and no backlash occurs even if the cover assembly is completely closed and the ice outlet is blocked. Elastic to ensure the sealing effect of the cover assembly.

Furthermore, in one embodiment of the present invention, the motor is a stepper motor, and the number of revolutions of the motor can be controlled by controlling the number of steps of the motor. The control method of the ice dispensing device 200 specifically includes:

After receiving the signal to open the ice outlet 212, when the control motor runs the first preset number of steps in the first direction A, the control motor is closed. The rotation angle corresponding to the first preset number of steps is greater than the cover plate assembly 220 to close the ice outlet 212. The angle at which the closed position rotates to the extreme open position;

After receiving the signal to close the ice outlet 212, the control motor is turned off when the second preset number of steps is run in the second direction. The rotation angle corresponding to the second preset number of steps is greater than the rotation angle of the cover assembly 220 from the limit open position. angle to the closed position.

In this embodiment, the stepper motor may lose synchronization during operation, that is, the actual number of steps of the motor is less than the theoretical number of steps. The corresponding number of revolutions of the motor and the driving cover assembly 220 The actual rotation angle will be smaller than the theoretical value.

The rotation angle corresponding to the first preset number of steps may be an angle at which the motor can drive the cover assembly 220 to rotate when the motor runs the first preset number of steps and no errors such as out-of-step occur during motor operation. Similarly, the rotation angle corresponding to the second preset number of steps can be the angle at which the motor can drive the cover assembly 220 to rotate by running the second preset number of steps under the theoretical condition that the motor does not suffer out-of-step errors during operation.

In this way, by controlling the number of operating steps of the motor, the motor can move to the extreme opening position when driving the cover assembly 220 to open, thereby not reducing the angle at which the cover assembly 220 can move when closing the cover assembly 220. When the cover assembly 220 is closed, the interference between the cover assembly 220 and the ice outlet 212 prevents the motor from stalling for a long time, causing the motor to receive a torque exceeding the critical locking torque, causing the cover assembly 220 to rebound, and the cover Plate assembly 220 is unable to seal ice outlet 212.

Further, referring to Figure 7, in one embodiment of the present invention, in the control method of the ice dispensing device 200, step "When controlling the motor to run the first preset number of steps in the first direction A, control the motor to turn off. ,"Also includes:

When the motor runs the preset number of opening steps, the motor is controlled to continue running in the first direction A;

When the motor continues to run the first preset number of locked-rotor steps, the motor is controlled to turn off;

The first preset number of steps is the sum of the preset number of opening steps and the first preset number of locked-rotor steps, and the rotation angle corresponding to the preset number of opening steps is equal to the rotation of the cover assembly 220 from the closed position of the ice outlet 212 To the angle of the extreme open position, the first preset number of stall steps is less than 100.

In this embodiment, the rotation angle corresponding to the preset number of opening steps can be the angle at which the motor can drive the cover assembly to rotate when the motor runs the preset number of opening steps and no errors such as out-of-step occur during theoretical operation. The rotation angle corresponding to the preset number of opening steps is equal to the angle at which the cover plate assembly 220 rotates from the closed position of the ice outlet 212 to the extreme open position. Under the theoretical condition that the motor does not suffer from out-of-step errors, the motor operates in the preset position. The number of opening steps can drive the cover assembly 220 to move from the closed position to the extreme open position. At this time, the motor continues to run for the first time. The number of stalling steps is preset, and the cover assembly 220 will be stalled due to the limitation of the limiting structure at the limit opening position. During the actual operation of the motor, the motor may lose synchronization. Running the first preset number of locked-rotor steps after running the preset open steps can avoid the impact of synchronization.

When the cover assembly 220 is in the extreme position, the motor is controlled to continue running the first preset number of steps in the first direction A. The torque received by the motor can be less than the critical locking torque, and the first preset number of locked-rotor steps can be less than 100, the further wall cover assembly 220 generates rebound to avoid damage to the motor.

Furthermore, in an embodiment of the present invention, the second preset number of steps may be the sum of the preset number of closing steps and the second preset number of stalling steps. The preset number of closing steps may be equal to the sum of the preset number of opening steps, and the second preset number of stalling steps may be different from the first preset number of stalling steps. The rotation angle corresponding to the preset number of closing steps may be equal to the angle at which the cover assembly 220 rotates from the extreme open position to the closed position. That is, under the theoretical condition that the motor does not suffer out-of-step errors, the motor runs the preset number of closing steps. , driving the cover assembly 220 to move exactly from the extreme open position to the closed position.

As a specific example of the present invention, if the rotation angle of the cover plate assembly 220 from the closed position of the ice outlet 212 to the extreme open position is 45°, the second preset number of steps may be 990 steps, and the preset number of opening steps The preset closing step number is 950 steps, and the second preset stalling step number can be 40 steps. Among them, when the motor runs theoretically without errors such as out-of-step, the motor can drive the cover assembly 220 to rotate 45° by running for 950 steps.

If the first preset number of locked-rotor steps is not set during the opening process, the motor will only run 950 steps in the first direction A. If the number of stalled-rotor steps is only set during the closing process, the motor will run 990 steps in the second direction. If the motor is in Out-of-step occurs during the opening process, but does not occur during the closing process. If 30 steps are out-of-step during the opening process, then during the process of closing the cover assembly 220, the actual number of locked-rotor steps of the motor is 70, which may As a result, the cover assembly 220 rebounds and the ice outlet 212 is not tightly sealed.

In one embodiment of the present invention, the first number of locked-rotor steps is set when the motor runs in the first direction A. If the first number of locked-rotor steps is 50 steps, the motor needs to continue after running 950 steps in the first direction A. Run 50 steps along the first direction A. In this way, even if a step is lost when the motor drives the cover assembly 220 to open, such as a step loss of 30 steps, the motor can still drive the cover assembly 220 to open to the extreme open position. The cover assembly The closing process of the 220 will not be affected by the loss of motor synchronization during the opening process.

Referring to FIG. 8 , an embodiment of the present invention also provides an ice discharging device 200 , which includes a memory 202 and a processor 201 . The memory 202 and the processor 201 are communicatively connected through a communication bus 204 . The memory 202 stores a computer program that can be run on the processor 201. When the processor 201 executes the computer program, the steps in the refrigerator control method in the above embodiment are implemented. The ice dispensing device also includes a communication interface 203 connected to the communication bus 204 for communicating with other devices of the ice dispensing device 200 .

An embodiment of the present invention also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by the processor, the steps in the ice dispensing device control method in the above embodiment are implemented.

It should be understood that although this specification is described in terms of embodiments, not each embodiment only contains an independent technical solution. This description of the specification is only for the sake of clarity. Persons skilled in the art should treat the specification as a whole and understand each individual solution. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent embodiments or changes that do not depart from the technical spirit of the present invention are All should be included in the protection scope of the present invention.

Claims

An ice discharge device control method, characterized by including:

After receiving the signal to open the ice outlet, the control motor runs in the first direction at the first pulse frequency to drive the cover assembly to rotate from the closed position to the open position for closing the ice outlet;

When the motor runs the first preset number of revolutions, control the motor to turn off;

Wherein, the motor is a self-locking motor, the rotation angle corresponding to the first preset number of revolutions is greater than the angle at which the cover assembly rotates from the closed position to the limit open position, and the first pulse frequency is greater than The rated pulse frequency of the motor.
The ice discharge device control method according to claim 1, further comprising:

After receiving the signal to close the ice outlet, control the motor to run in the second direction to drive the cover assembly to rotate from the open position to the closed position;

When the motor runs the second preset number of revolutions, control the motor to turn off;

Wherein, the second direction is opposite to the first direction, and the rotation angle corresponding to the second preset number of revolutions is greater than the angle at which the cover assembly rotates from the limit open position to the closed position.
The ice dispensing device control method according to claim 2, wherein the motor operates at a second pulse frequency along the second direction, and the second pulse frequency is smaller than the first pulse frequency.
The ice dispensing device control method according to claim 3, wherein the second pulse frequency is greater than or equal to the rated pulse frequency of the motor.
The ice dispensing device control method according to claim 3, wherein the difference between the second pulse frequency and the rated pulse frequency of the motor is less than or equal to 10.
The ice dispensing device control method according to claim 3, wherein the motor is a stepper motor, and the method specifically includes:

After receiving the signal to open the ice outlet, the motor is controlled to run in the first direction for the first preset number of steps, and the motor is controlled to close. The rotation angle corresponding to the first preset number of steps is greater than the cover assembly. The angle of rotation from the closed position to the extreme open position;

After receiving the signal to close the ice outlet, the motor is controlled to run in the second direction for a second preset number of steps, and the motor is controlled to close. The rotation angle corresponding to the second preset number of steps is greater than that of the cover. The angle through which the plate assembly is rotated from the extreme open position to the closed position.
The ice dispensing device control method according to claim 6, characterized in that "when controlling the motor to run the first preset number of steps in the first direction, controlling the motor to turn off," further includes:

When the motor runs for a preset number of opening steps, control the motor to continue running in the first direction;

When the motor continues to run the first preset number of locked-rotor steps, control the motor to turn off;

Wherein, the first preset number of steps is the sum of the preset number of opening steps and the first preset number of locked-rotor steps, and the rotation angle corresponding to the preset number of opening steps is equal to the rotation angle of the cover assembly from the closed position. At the angle of rotation to the extreme opening position, the first preset number of stalling steps is less than 100.
The ice dispensing device control method according to claim 2, wherein the second preset number of revolutions is smaller than the first preset number of revolutions.
A refrigerator door assembly, including a door body and a dispenser arranged on the door body. The door body includes a door shell and a door lining, and a heat insulating material is filled between the door shell and the door lining. The door body is provided with an ice outlet channel, which runs through the door body. The ice outlet channel includes an ice inlet located on one side of the door lining and an ice outlet located on one side of the door shell. Ice outlet; the door body is also equipped with a cover assembly for opening and closing the ice outlet and a motor that drives the cover assembly to rotate; it is characterized in that the refrigerator door assembly also includes a limiting structure , used to limit the limit opening position of the cover assembly; a memory and a processor, the memory stores a computer program that can be run on the processor, and when the processor executes the computer program, the claims are realized The steps in the ice discharge device control method described in 1.
A computer-readable storage medium on which a computer program is stored, characterized in that when the computer program is executed by a processor, the steps in the ice discharging device control method described in claim 1 are implemented.