CN111721055A

CN111721055A - Door body assembly, control method thereof, refrigeration equipment and readable storage medium

Info

Publication number: CN111721055A
Application number: CN201910215693.9A
Authority: CN
Inventors: 符秀亮; 袁进国; 史慧新; 宁志芳
Original assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Current assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Priority date: 2019-03-21
Filing date: 2019-03-21
Publication date: 2020-09-29
Anticipated expiration: 2039-03-21
Also published as: CN111721055B

Abstract

The invention provides a door body assembly, refrigeration equipment, a control method of the door body assembly and a computer readable storage medium, wherein the door body assembly comprises: a drive mechanism; the door body is connected with an output shaft of the driving mechanism and is driven by the driving mechanism to rotate; the magnetic part is arranged on the door body or the output shaft; the sensor is arranged on the driving mechanism and used for detecting the position of the magnetic piece; and the controller is connected with the sensor and the driving mechanism, determines the position of the door body according to the position of the magnetic part and controls the driving mechanism to work. The door body assembly sensor provided by the invention controls the driving mechanism to work according to the position information of the door body, so that the working state of the driving mechanism is matched with the specific position of the door body, the sudden stop of a motor is avoided, the force generated by the inertia of the door body is prevented from being applied to the driving mechanism and other related parts, the service life of the door body assembly is further prolonged, and the reliability of the door body assembly is improved.

Description

Door body assembly, control method thereof, refrigeration equipment and readable storage medium

Technical Field

The invention relates to the technical field of transmission mechanisms, in particular to a door body assembly, a refrigerating device, a control method of the door body assembly and a computer readable storage medium.

Background

The existing common door opening control method executes control action after detecting a target position, generally stops motor driving immediately, stops gear driving and then disconnects an electromagnetic clutch. Because the door body has larger dead weight and larger inertia, when the motor is suddenly de-energized, the speed is reduced too much, and larger force is still applied to the gear and the mechanism. On one hand, the mechanism is impacted greatly, and the service life of parts is influenced; on the other hand, when the motor loses power, the door body still can move for a period of time along the original direction and exceed the target position, and even the situation of limited rebounding of the door body and the door hinge occurs, so that the user feels poor in body feeling and reliability.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art.

To this end, a first aspect of the present invention provides a door assembly.

In a second aspect, the present invention provides a refrigeration apparatus.

A third aspect of the invention provides a method of controlling a door assembly.

A fourth aspect of the invention provides a computer-readable storage medium.

A first aspect of the present invention provides a door assembly comprising: a drive mechanism; the door body is connected with an output shaft of the driving mechanism and is driven by the driving mechanism to rotate; the magnetic part is arranged on the door body or the output shaft; the sensor is arranged on the driving mechanism and used for detecting the position of the magnetic piece; and the controller is connected with the sensor and the driving mechanism, determines the position of the door body according to the position of the magnetic part and controls the driving mechanism to work.

According to the door body assembly provided by the first aspect of the invention, the magnetic part is arranged on the door body or the output shaft, the sensor is arranged on the driving mechanism, and the position information of the door body is determined through the mutual matching of the magnetic part and the sensor, so that the accurate control of the driving mechanism by the controller is ensured. Specifically, in the process that the driving mechanism drives the door body to rotate, the magnetic part on the door body or the output shaft changes in position along with the rotation of the door body, meanwhile, the sensor detects the change in position of the magnetic part and transmits the position information of the magnetic part to the controller, and the controller determines the position of the door body according to the position information of the magnetic part and controls the driving mechanism to work according to the position of the door body. Specifically, the magnetic part adopts a magnet, the magnet is arranged on an output shaft of the driving mechanism, the sensor adopts a magnetic Hall angle sensor, and the position change of the magnet is detected through the magnetic Hall angle sensor, so that the position detection of the door body is realized. Specifically, when the door body rotates to the position near the door opening or closing position, the controller controls the motor to stop working, so that the door body slides freely for a period of time, the rotating speed of the door body is still very large after the motor stops suddenly, the situation of rebounding of the door hinge limiting position is avoided, meanwhile, the force generated by the inertia of the door body is prevented from being applied to the driving mechanism and other related parts, the service life of the door body assembly is prolonged, and the reliability of the door body assembly is improved.

The door body assembly provided by the invention can acquire the position information of the door body in the door opening or closing process through the mutual matching of the magnetic part, the sensor controls the driving mechanism to work according to the position information of the door body, so that the working state of the driving mechanism is matched with the specific position of the door body, the sudden stop of the motor is avoided, the force generated by the inertia of the door body is prevented from being applied to the driving mechanism and other related parts, the limit rebound situation of the door body and a door hinge cannot occur, the service life of the door body assembly is further prolonged, and the reliability of the door body assembly is improved.

According to the door body assembly, the following additional technical characteristics can be provided:

in the above technical solution, preferably, the drive mechanism includes: the output end of the motor is provided with a driving gear; the driving gear is meshed with the driving gear and driven by the driving gear to rotate; the driven gear is connected with the output shaft and drives the output shaft to rotate; the clutch gear set is respectively meshed with the driving gear and the driven gear; and the electromagnetic assembly is connected with the clutch gear set and the controller, and the electromagnetic assembly drives the clutch gear set to be respectively meshed with the driving gear and the driven gear under the control of the controller.

In the technical scheme, a driving gear is arranged at the output end of a motor, the driving gear is meshed with the driving gear and driven by the driving gear to rotate, and a driven gear is arranged on an output shaft and can drive the output shaft to rotate; the driving gear and the driven gear are meshed or separated through a clutch gear set; the electromagnetic assembly is connected with the controller and the clutch gear set, and the electromagnetic assembly drives the clutch gear set to move under the control of the controller. Specifically, the controller is connected with the electromagnetic assembly, and when the door body is driven to needs, the controller controls the electromagnetic assembly to be electrified, so that the electromagnetic assembly drives the clutch gear set to be meshed with the driving gear and the driven gear respectively, the transmission of power between the driving gear and the driven gear is guaranteed, the transmission between the torque of the motor and the output shaft is realized, and the door body is driven.

In any one of the above technical solutions, preferably, the clutch gear set includes: a drive shaft; the first clutch gear is sleeved on the transmission shaft and meshed with the driving gear; and the second clutch gear is sleeved on the transmission shaft and can slide along the transmission shaft, and the second clutch gear is meshed with the driven gear under the driving of the electromagnetic assembly.

In the technical scheme, the clutch gear set comprises a transmission shaft, and a first clutch gear and a second clutch gear which are arranged on the transmission shaft. Specifically, the first clutch gear is meshed with the driving gear, and the second clutch gear is located below the first clutch gear and slides along the transmission shaft. When the door body needs to be driven, the controller controls the electromagnetic assembly to be electrified, so that the electromagnetic assembly drives the second clutch gear to be meshed with the driven gear, the transmission of power between the driving gear and the driven gear is guaranteed, the transmission between the torque of the motor and the output shaft is further realized, and the door body is driven.

In any of the above technical solutions, preferably, the method further includes: the elastic piece is sleeved on the transmission shaft and located between the first clutch gear and the second clutch gear, and the second clutch gear is disconnected from the driven gear under the action of the elastic piece.

In this technical scheme, the cover is equipped with the elastic component on the transmission shaft, and the elastic component is located between first clutch gear and the second clutch gear. In the process of the rotation of the door body, the elastic piece is in a compressed state. After the door body rotates to the existing position, the controller controls the electromagnetic assembly to lose power, the elastic part in the compression state pushes the second clutch gear to move, the second clutch gear is disconnected with the driven gear, the transmission between the torque of the motor and the output shaft is disconnected, the damage of force generated by the inertia of the subsequent door body to the driving mechanism and other related parts is avoided, the service life of the door body assembly is prolonged, and the reliability of the door body assembly is improved.

In any of the above technical solutions, preferably, the method further includes: the instruction acquisition device is arranged on the door body, is connected with the controller and is used for acquiring a working instruction; the controller controls the driving mechanism to work according to the working instruction.

In the technical scheme, the door body is provided with the instruction acquisition device for acquiring the working instruction, so that the controller controls the driving mechanism to work according to the working instruction. Specifically, a key or a voice acquisition device or a touch screen can be adopted, and a working instruction is used for determining the running direction of the door body.

Specifically, when the key is used, the user can obtain a corresponding instruction by setting a door opening key, a door closing key, a stop key and the like; when the voice acquisition device is adopted, the operation can be directly carried out through voice instructions such as opening, closing, stopping and the like; when the touch screen is used, different control areas can be directly arranged at corresponding positions of the touch screen so as to realize door opening, door closing and stopping operations.

In a second aspect, the invention provides a refrigeration device, which is characterized by comprising the door body assembly according to any one of the technical solutions of the first aspect of the invention.

The refrigeration equipment provided by the invention comprises the door body assembly according to any one of the technical schemes in the first aspect of the invention, so that the refrigeration equipment has all the beneficial effects of the door body assembly, and further description is omitted.

A third aspect of the present invention provides a control method for a door assembly, including: receiving a working instruction, and controlling the electromagnetic assembly to drive the clutch gear to be meshed with the transmission gear; controlling the motor to work towards a first direction according to the working instruction, and driving the door body to rotate; the door body reaches a first preset position, and the electromagnetic assembly is controlled to drive the clutch gear to be disconnected with the transmission gear.

After receiving a working instruction, the control method of the door body assembly firstly controls the electromagnetic valve to drive the clutch gear to be meshed with the transmission gear, so that the transmission mechanism of the door body assembly is connected, and the torque transmission of the motor is ensured; and then controlling the motor to work towards the first direction according to the working instruction, and driving the door body to rotate. Specifically, the first direction is determined by a work order, namely a door opening or closing direction; further, in the rotating process of the door body, when the door body reaches a first preset position, the electromagnetic assembly is controlled to drive the clutch gear to be disconnected with the transmission gear, the transmission of the torque of the motor is cut off, the door body freely slides for a certain distance through inertia, and the short-distance rotation is achieved. In the free sliding process of the door body, the transmission gear connected with the door body also freely rotates along with the door body, so that the slow stop of the door body is realized. When the door body rotates to the first preset position, the door body can be kept to slide freely through inertia to realize the door closing or opening operation, and the limit rebound of the door body and the door hinge due to overlarge stroke can be avoided. Specifically, the first preset position refers to a position where the door body rotates by 50 °.

According to the control method of the door body assembly provided by the third aspect of the invention, when the door body reaches the first preset position, the electromagnetic assembly is firstly used for disconnecting the clutch gear from the transmission gear, so that the door body is free for a certain distance, and in the process of free sliding of the door body, the transmission gear connected with the door body also freely rotates along with the door body, so that the slow stop of the door body is realized, the damage of the motor caused by the force generated by the inertia of the door body during sudden stop of the motor on the construction of a driving machine is avoided, the service life of the door body assembly is.

According to the control method of the door body assembly, the following additional technical characteristics can be provided:

in the above technical solution, preferably, after the door body reaches the first preset position and the step of controlling the electromagnetic assembly to drive the clutch gear to be disconnected from the transmission gear, the method further includes: and the door body reaches a second preset position and controls the motor to stop working.

In the technical scheme, after the step of controlling the electromagnetic assembly to drive the clutch gear to be disconnected from the transmission gear, when the door body reaches the second preset position, the motor is controlled to stop working, and therefore the door body is slowly stopped. Namely, the rotation of the door body is divided into two processes, the first process is the stage from the beginning of the rotation of the door body to the arrival of the door body at the first preset position, and when the door body arrives at the first preset position, the connection between the clutch gear and the transmission gear is disconnected; and when the door body reaches the stage of the second preset position, stopping the motor to work, so that the motor is powered off. Specifically, the second preset position is any position within a range of 2 ° to 10 ° away from the door rotation end position during the rotation of the door body.

In any one of the above technical solutions, preferably, after the step of controlling the motor to operate in the first direction according to the operation command and driving the door body to rotate, the method further includes: acquiring a first rotation angle of the door body; calculating an absolute value of a first difference between the first rotation angle and the target angle; and judging whether the door body reaches a first preset position or not according to the absolute value of the first difference and a first threshold value.

In the technical scheme, in the process of controlling the motor to work towards the first direction according to the working instruction, the motion state of the door body is detected in real time, the first rotation angle of the door body is obtained, then the absolute value of a first difference value between the first rotation angle and the target angle is calculated, and whether the door body reaches the first preset position is judged according to the absolute value of the first difference value and the first threshold value. Specifically, when the absolute value of the first difference is smaller than or equal to a first threshold value, the door body reaches a first preset position, and at the moment, the electromagnetic assembly is controlled to drive the clutch gear to be disconnected from the transmission gear; when the absolute value of the first difference is larger than the first threshold, the door body does not reach the first preset position, and at the moment, the motor is continuously controlled to work towards the first direction until the absolute value of the first difference between the first rotating angle and the target angle is smaller than or equal to the first threshold.

Specifically, when the absolute value of the first difference is less than 10 °, it indicates that the door body has reached the first preset position.

In any one of the above technical solutions, preferably, before the step of controlling the motor to stop working when the door body reaches the second preset position, the method further includes: acquiring a second rotation angle of the door body; calculating an absolute value of a second difference between the second rotation angle and the target angle; and judging whether the door body reaches a second preset position or not according to the absolute value of the second difference value and a second threshold value.

In the technical scheme, in the free sliding process of the door body, the motion state of the door body is detected in real time, the second rotation angle of the door body is obtained, then the absolute value of a second difference value between the second rotation angle and the target angle is calculated, and whether the door body reaches a second preset position is judged according to the absolute value of the second difference value and a second threshold value. Specifically, when the absolute value of the second difference is smaller than or equal to the second threshold, the door body reaches a second preset position, and the motor is controlled to be powered off at the moment; when the absolute value of the second difference is larger than the second threshold, the door body does not reach the second preset position, and free sliding of the door body is continuously guaranteed until the absolute value of the second difference between the second rotating angle and the target angle is smaller than or equal to the second threshold. Specifically, the second preset angle is smaller than the first preset angle.

Specifically, when the absolute value of the second difference is less than 2 °, it indicates that the door body has reached the second preset position.

In any one of the above technical solutions, preferably, after the step of controlling the motor to stop working when the door body reaches the second preset position, the method further includes: controlling the motor to stop working for a first preset time; stopping the motor to work for a first preset time, and controlling the motor to work towards the first direction for a second preset time; the motor works towards the first direction to a second preset time length, and the motor is controlled to stop working to a third preset time length; stopping the motor to work for a third preset time, and controlling the motor to work towards the second direction for a second preset time; wherein the first direction is opposite to the second direction.

In the technical scheme, after the motor stops working, because the clutch gear and the transmission gear are still in a contact state, friction force can exist to prevent the clutch gear and the transmission gear from being separated. Therefore, after the motor is controlled to stop working, the clutch gear is guaranteed to be better disengaged by shaking generated by forward rotation and reverse rotation of the motor. Specifically, after the motor is controlled to stop working, the motor is guaranteed to stop working for a first preset time, then the motor is controlled to continue working towards the first direction for a second preset time, then the motor is controlled to stop working for a third preset time, and finally the motor is controlled to work towards the second direction for the second preset time. The motor is controlled to generate bidirectional shaking after the motor is powered off, friction between the clutch gear and the transmission gear is eliminated and reduced, the clutch gear is separated from the transmission gear in the shaking process, and the clutch gear is guaranteed to be better separated.

Specifically, the rotation of the door body is divided into three processes, the first process is a stage from the beginning of the rotation of the door body to the arrival of the door body at a first preset position, and when the door body arrives at the first preset position, the connection between the clutch gear and the transmission gear is disconnected; when the door body reaches the stage of the second preset position, stopping the motor to work again to cut off the power of the motor; the third process is the shaking after the motor stops working.

In any of the above technical solutions, preferably, the first preset duration ranges from 0.1 second to 0.5 second; the second preset duration ranges from 0.1 second to 0.5 second.

In the technical scheme, on the premise of ensuring better separation of the clutch gear, the value range of the first preset time of the motor work is set to be 0.1 to 0.5 seconds, and the value range of the second preset time is set to be 0.1 to 0.5 seconds, so that the best shaking effect is ensured, and the better separation of the clutch gear is ensured.

Specifically, the first preset time period and the second preset time period may be set according to actual needs, and may be 0.1 second, 0.25 second, or 0.5 second. And similarly, the clutch gear can be shaken for multiple times when necessary, so that the clutch gear is better separated.

A fourth aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the control method for a door body assembly according to any one of the above technical solutions.

The invention provides a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the control method of the door body assembly according to any one of the above technical solutions. Therefore, the control method of the door body assembly has all the beneficial effects of any one of the technical schemes.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a drive mechanism in a door assembly according to one embodiment of the present invention;

FIG. 2 is an exploded view of a clutch gear set and a solenoid assembly in the drive mechanism of the embodiment shown in FIG. 1;

FIG. 3 is an exploded view of the clutch gear set and solenoid assembly from another perspective in the drive mechanism of the embodiment of FIG. 2;

FIG. 4 is a side view of a clutch gear set and a solenoid assembly in the drive mechanism of the embodiment shown in FIG. 2;

FIG. 5 is a cross-sectional view A-A of the clutched gear set of the embodiment of FIG. 4;

FIG. 6 is a first schematic diagram of a first clutch gear of the clutch gear set of the embodiment shown in FIG. 5;

FIG. 7 is a cross-sectional view B-B of the first clutch gear of the embodiment of FIG. 6;

FIG. 8 is a second schematic illustration of a first clutch gear of the clutch gear set of the embodiment shown in FIG. 5;

FIG. 9 is a cross-sectional view of the first clutch gear of the embodiment of FIG. 8 taken along C-C;

FIG. 10 is a third schematic illustration of the first clutch gear of the clutched gear set of the embodiment shown in FIG. 5;

FIG. 11 is a cross-sectional view of the first clutch gear of the embodiment of FIG. 10 taken along D-D;

FIG. 12 is a fourth schematic illustration of a first clutch gear of the clutched gear set of the embodiment shown in FIG. 5;

FIG. 13 is a cross-sectional view E-E of the first clutch gear of the embodiment of FIG. 10;

FIG. 14 is a fifth schematic illustration of a first clutch gear of the clutched gear set of the embodiment shown in FIG. 5;

FIG. 15 is a cross-sectional view F-F of the first clutch gear of the embodiment of FIG. 14;

FIG. 16 is a sixth schematic illustration of a first clutch gear of the clutched gear set of the embodiment shown in FIG. 5;

FIG. 17 is a cross-sectional view of the first clutch gear of the embodiment of FIG. 16 taken along G-G;

fig. 18 is a flowchart showing a control method of the door body assembly according to the first embodiment of the invention;

fig. 19 is a flowchart showing a control method of the door body assembly according to the second embodiment of the present invention;

fig. 20 is a flowchart showing a control method of the door body assembly according to the third embodiment of the invention;

fig. 21 is a flowchart showing a control method of the door body assembly according to the fourth embodiment of the invention;

fig. 22 is a flowchart showing a control method of the door body assembly according to the fifth embodiment of the invention;

fig. 23 is a flowchart illustrating a control method of the door assembly according to an embodiment of the present invention;

fig. 24 is a flowchart illustrating a control method of a door assembly according to another embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 17 is:

1 driving mechanism, 12 motors, 14 driving gears, 16 driven gears, 18 clutch gear sets, 182 transmission shafts, 184 first clutch gears, 186 second clutch gears, 188 limiting parts, 20 electromagnetic assemblies, 202 electromagnet driving parts, 204 push rods, 206 wedge surfaces, 22 elastic parts, 24 driving gears and 26 output shafts.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

Door assemblies, refrigeration apparatuses, control methods of door assemblies, and computer-readable storage media according to some embodiments of the present invention are described below with reference to fig. 1 to 24.

A first aspect of the present invention provides a door assembly, as shown in fig. 1 to 4, comprising: a drive mechanism 1; the door body is connected with an output shaft 26 of the driving mechanism 1 and is driven by the driving mechanism 1 to rotate; a magnetic member disposed on the door body or the output shaft 26; the sensor is arranged on the driving mechanism 1 and used for detecting the position of the magnetic piece; and the controller is connected with the sensor and the driving mechanism 1, determines the position of the door body according to the position of the magnetic part and controls the driving mechanism 1 to work.

According to the door body assembly provided by the invention, the magnetic part is arranged on the door body or the output shaft 26, the sensor is arranged on the driving mechanism 1, and the position information of the door body is determined through the mutual matching of the magnetic part and the sensor, so that the accurate control of the driving mechanism 1 by the controller is ensured. Specifically, in the process that the driving mechanism 1 drives the door body to rotate, the magnetic part on the door body or the output shaft 26 changes in position along with the rotation of the door body, meanwhile, the sensor detects the change in position of the magnetic part and transmits the position information of the magnetic part to the controller, and the controller determines the position of the door body according to the position information of the magnetic part and controls the driving mechanism 1 to work according to the position of the door body. Specifically, the magnetic part adopts a magnet, the magnet is arranged on the output shaft 26 of the driving mechanism 1, the sensor adopts a magnetic hall angle sensor, and the position change of the magnet is detected through the magnetic hall angle sensor, so that the detection of the position of the door body is realized. Specifically, when the door body rotates to the position near the door opening or closing position, the controller controls the motor 12 to stop working, so that the door body slides freely for a period of time, the rotating speed of the door body is still very large after the motor 12 stops suddenly, the situation of rebounding of the door hinge limiting position is avoided, meanwhile, the force generated by the inertia of the door body is prevented from being applied to the driving mechanism 1 and other related parts, the service life of the door body assembly is prolonged, and the reliability of the door body assembly is improved.

The door body assembly provided by the invention can acquire the position information of the door body in the door opening or closing process through the mutual matching of the magnetic part, the sensor controls the driving mechanism 1 to work according to the position information of the door body, so that the working state of the driving mechanism 1 is matched with the specific position of the door body, the sudden stop of the motor 12 is avoided, the force generated by the inertia of the door body is prevented from being applied to the driving mechanism 1 and other related parts, the service life of the door body assembly is further prolonged, the limit rebound situation of the door body and a door hinge cannot occur, and the reliability of the door body assembly is improved.

In one embodiment of the present invention, preferably, as shown in fig. 1, the drive mechanism 1 includes: the motor 12, the output end of the motor 12 is provided with a driving gear 24; the driving gear 14 is meshed with the driving gear 24, and the driving gear 14 is driven by the driving gear 24 to rotate; the driven gear 16 is connected with the output shaft 26, and the driven gear 16 drives the output shaft 26 to rotate; the clutch gear set 18 is meshed with the driving gear 14 and the driven gear 16 respectively; and the electromagnetic assembly 20 is connected with the clutch gear set 18 and the controller, and the electromagnetic assembly 20 drives the clutch gear set 18 to be meshed with the driving gear 14 and the driven gear 16 respectively under the control of the controller.

In this embodiment, a driving gear 24 is provided at the output end of the motor 12, the driving gear 14 and the driving gear 24 are engaged with each other and driven by the driving gear 24 to rotate, and the driven gear 16 is mounted on the output shaft 26 and can drive the output shaft 26 to rotate; the driving gear 14 and the driven gear 16 are meshed or separated through a clutch gear set 18; the electromagnetic assembly 20 is connected with the controller and the clutch gear set 18, and the electromagnetic assembly 20 drives the clutch gear set 18 to move under the control of the controller. Specifically, the controller is connected with the electromagnetic assembly 20, and when the door body needs to be driven, the controller controls the electromagnetic assembly 20 to be powered on, so that the electromagnetic assembly 20 drives the clutch gear set 18 to be meshed with the driving gear 14 and the driven gear 16 respectively, transmission of power between the driving gear 14 and the driven gear 16 is guaranteed, transmission between torque of the motor 12 and the output shaft 26 is further achieved, and the door body is driven.

In one embodiment of the present invention, preferably, as shown in fig. 2 to 5, the clutch gear set 18 includes: a drive shaft 182; a first clutch gear 184 sleeved on the transmission shaft 182 and engaged with the driving gear 14; and the second clutch gear 186 is sleeved on the transmission shaft 182 and can slide along the transmission shaft 182, and the second clutch gear 186 is meshed with the driven gear 16 under the driving of the electromagnetic assembly 20.

In this embodiment, the clutch gear set 18 includes a transmission shaft 182 and a first clutch gear 184 and a second clutch gear 186 disposed on the transmission shaft 182. Specifically, the first clutch gear 184 is engaged with the driving gear 14, and the second clutch gear 186 is located below the first clutch gear 184 and slides along the transmission shaft 182. When the door body needs to be driven, the controller controls the electromagnetic assembly 20 to be electrified, so that the electromagnetic assembly 20 drives the second clutch gear 186 to be meshed with the driven gear 16, the transmission of power between the driving gear 14 and the driven gear 16 is ensured, the transmission between the torque of the motor 12 and the output shaft 26 is further realized, and the door body is driven.

In an exemplary embodiment, the electromagnetic assembly 20 includes an electromagnet driver 202 and a push rod 204, and a wedge 206 is disposed on a side of the push rod 204 facing the second clutch gear 186, and the electromagnet driver 202 electrically drives the push rod 204 to move toward the side of the second clutch gear 186, so that the second clutch gear 186 is lifted up by the wedge 206 until it is engaged with the driven gear 16.

In the embodiment, the driving mechanism 1 comprises an electromagnet driving part 202 for driving the clutch gear set 18 and a motor 12 for driving the gear to run in the forward direction and the reverse direction, so that the electric door opening and the electric door closing are realized, and after the driving is received, the clutch contact does not influence the manual operation.

In a specific embodiment, as shown in fig. 6 to 17, the first clutch gear 184 and the second clutch gear 186 are limited by the mutually matched limiting portions 188, and the limiting portions 188 are uniformly distributed on the matching end surfaces of the first clutch gear 184 and the second clutch gear 186.

For the specific structure of the limiting portion 188, the following specific structures can be selected:

as shown in fig. 6 and 7, the cross-sectional shape of the stopper portion 188 is trapezoidal; as shown in fig. 8 and 9, the cross-sectional shape of the stopper portion 188 is triangular; as shown in fig. 10 and 11, the cross-sectional shape of the stopper portion 188 is rectangular; as shown in fig. 12 and 13, the cross section of the limiting portion 188 is a quadrangle with two ends having different sizes, and one end of the limiting portion 188 extends to the first clutch gear 184; as shown in fig. 14 and 15, the cross section of the stopper 188 is a quadrangle with two ends having different sizes, and one end of the stopper 188 extends to the outer periphery; as shown in fig. 16 and 17, the cross section of the stopper 188 is formed in a quadrilateral shape having two ends with different sizes, and the two ends of the stopper 188 extend to the mounting hole and the outer periphery.

In one embodiment of the present invention, preferably, as shown in fig. 5 and 6, further comprising: the elastic member 22 is sleeved on the transmission shaft 182 and located between the first clutch gear 184 and the second clutch gear 186, and the second clutch gear 186 is disconnected from the driven gear 16 under the action of the elastic member 22.

In this embodiment, the transmission shaft 182 is sleeved with the elastic member 22, and the elastic member 22 is located between the first clutch gear 184 and the second clutch gear 186. During the rotation of the door body, the elastic member 22 is in a compressed state. After the door body rotates to the preset position, the controller controls the electromagnetic assembly 20 to lose power, the elastic piece 22 in the compression state pushes the second clutch gear 186 to move, so that the second clutch gear 186 is disconnected from the driven gear 16, the transmission between the torque of the motor 12 and the output shaft 26 is disconnected, the damage of the force generated by the inertia of the subsequent door body on the driving mechanism 1 and other related parts is avoided, the service life of the door body assembly is prolonged, and the reliability of the door body assembly is improved.

In one embodiment of the present invention, preferably, the method further includes: the instruction acquisition device is arranged on the door body, is connected with the controller and is used for acquiring a working instruction; the controller controls the driving mechanism 1 to work according to the working instruction.

In this embodiment, the door body is provided with an instruction obtaining device for obtaining a working instruction, so that the controller controls the driving mechanism 1 to work according to the working instruction. Specifically, a key, a voice acquisition device or a touch screen can be adopted, and a working instruction is used for determining the running direction of the door body.

In a specific embodiment, the door body assembly provided by the invention is characterized in that a magnet is arranged on an output shaft 26 of a driving mechanism 1, a magnetic hall angle sensor is arranged on a gear of the driving mechanism 1, and the position change of the magnet is detected through the mutual matching of the magnetic hall angle sensor and the magnet to detect the position of the door body; the sensor controls the driving mechanism 1 to work according to the position information of the door body, so that the working state of the driving mechanism 1 is matched with the specific position of the door body, the sudden stop of the motor 12 is avoided, and the force generated by the inertia of the door body is prevented from being applied to the driving mechanism 1 and other related parts. Specifically, the clutch gear set 18 includes a transmission shaft 182, and a first clutch gear 184 and a second clutch gear 186 disposed on the transmission shaft 182, wherein the second clutch gear 186 is located below the first clutch gear 184 and slides along the transmission shaft 182.

The electromagnetic assembly 20 includes an electromagnet driver 202 and a push rod 204, and a wedge surface 206 is disposed on a side of the push rod 204 facing the second clutch gear 186. When the door body needs to be driven, the controller controls the electromagnet driving piece 202 to be powered on, the electromagnet driving piece 202 is powered on to drive the push rod 204 to move towards one side of the second clutch gear 186, and the second clutch gear 186 rises under the action of the wedge-shaped surface 206 until the second clutch gear is meshed with the driven gear 16.

The transmission shaft 182 is sleeved with an elastic member 22, and the elastic member 22 is located between the first clutch gear 184 and the second clutch gear 186. During the rotation of the door body, the elastic member 22 is in a compressed state. After the door body rotates to the preset position, the controller controls the electromagnetic assembly 20 to lose power, the elastic piece 22 in the compression state pushes the second clutch gear 186 to move, so that the second clutch gear 186 is disconnected from the driven gear 16, the transmission between the torque of the motor 12 and the output shaft 26 is disconnected, the damage of the force generated by the inertia of the subsequent door body on the driving mechanism 1 and other related parts is avoided, the service life of the door body assembly is prolonged, and the reliability of the door body assembly is improved.

In a second aspect, the invention provides a refrigeration device, which is characterized by comprising the door body assembly according to any one embodiment of the first aspect of the invention.

The refrigeration equipment provided by the invention comprises the door body assembly according to any one embodiment of the first aspect of the invention, so that all beneficial effects of the door body assembly are achieved, and further description is omitted.

Fig. 18 is a flowchart showing a control method of the door body assembly according to the first embodiment of the present invention.

As shown in fig. 18, the control method of the door body assembly includes:

s102, receiving a working instruction, and controlling an electromagnetic assembly to drive a clutch gear to be meshed with a transmission gear;

s104, controlling the motor to work towards a first direction according to the working instruction, and driving the door body to rotate;

and S106, controlling the electromagnetic assembly to drive the clutch gear to be disconnected from the transmission gear when the door body reaches a first preset position.

After receiving a working instruction, the control method of the door body assembly firstly controls the electromagnetic valve to drive the clutch gear to be meshed with the transmission gear, so that the transmission mechanism of the door body assembly is connected, and the torque transmission of the motor is ensured; and then controlling the motor to work towards the first direction according to the working instruction so as to drive the door body to rotate. Specifically, the first direction is determined by a work order, namely a door opening or closing direction; further, in the rotating process of the door body, when the door body reaches a first preset position, the electromagnetic assembly is controlled to drive the clutch gear to be disconnected with the transmission gear, the transmission of the torque of the motor is cut off, the door body freely slides for a certain distance through inertia, and the short-distance rotation is achieved. In the free sliding process of the door body, the transmission gear connected with the door body also freely rotates along with the door body, so that the slow stop of the door body is realized. Specifically, the first preset position refers to a position where the door body rotates by 50 °.

According to the control method of the door body assembly, when the door body reaches the first preset position, the electromagnetic assembly is firstly used for disconnecting the connection between the clutch gear and the transmission gear, so that the door body is free for a certain distance, in the free sliding process of the door body, the transmission gear connected with the door body also freely rotates along with the door body, the slow stop of the door body is realized, the damage of the motor structure due to the force generated by the inertia of the door body when the motor suddenly stops is avoided, the service life of the door body assembly is prolonged, and the reliability of the door body assembly is improved. When the door body rotates to the first preset position, the door body can be kept to slide freely through inertia to realize the door closing or opening operation, and the limit rebound of the door body and the door hinge due to overlarge stroke can be avoided.

Fig. 19 is a flowchart showing a control method of the door body assembly according to the second embodiment of the present invention.

As shown in fig. 19, the control method of the door body assembly includes:

s202, receiving a working instruction, and controlling an electromagnetic assembly to drive a clutch gear to be meshed with a transmission gear;

s204, controlling the motor to work towards a first direction according to the working instruction, and driving the door body to rotate;

s206, when the door body reaches a first preset position, controlling the electromagnetic assembly to drive the clutch gear to be disconnected with the transmission gear;

and S208, controlling the motor to stop working when the door body reaches a second preset position.

In this embodiment, after the step of controlling the electromagnetic assembly to drive the clutch gear to be disconnected from the transmission gear, when the door body reaches the second preset position, the motor is controlled to stop working, and thus the door body is slowly stopped. Namely, the rotation of the door body is divided into two processes, the first process is the stage from the beginning of the rotation of the door body to the arrival of the door body at the first preset position, and when the door body arrives at the first preset position, the connection between the clutch gear and the transmission gear is disconnected; and when the door body reaches the stage of the second preset position, stopping the motor to work, so that the motor is powered off. Specifically, the second preset position is any position within a range of 2 ° to 10 ° away from the door rotation end position during the rotation of the door body.

Fig. 20 is a flowchart showing a control method of the door body assembly according to the third embodiment of the present invention.

As shown in fig. 20, the control method of the door body assembly includes:

s302, receiving a working instruction, and controlling an electromagnetic assembly to drive a clutch gear to be meshed with a transmission gear;

s304, controlling the motor to work towards a first direction according to the working instruction, and driving the door body to rotate;

s306, acquiring a first rotation angle of the door body;

s308, calculating the absolute value of a first difference value between the first rotating angle and the target angle;

s310, judging whether the absolute value of the first difference is larger than or equal to a first threshold value, if so, executing S304, otherwise, executing S312;

s312, controlling the electromagnetic assembly to drive the clutch gear to be disconnected with the transmission gear;

and S314, controlling the motor to stop working when the door body reaches a second preset position.

In the embodiment, in the process of controlling the motor to work towards the first direction according to the working instruction, the motion state of the door body is detected in real time, the first rotation angle of the door body is obtained, then the absolute value of a first difference value between the first rotation angle and the target angle is calculated, and whether the door body reaches the first preset position is judged according to the absolute value of the first difference value and the first threshold value. Specifically, when the absolute value of the first difference is smaller than or equal to a first threshold value, the door body reaches a first preset position, and at the moment, the electromagnetic assembly is controlled to drive the clutch gear to be disconnected from the transmission gear; when the absolute value of the first difference is larger than the first threshold, the door body does not reach the first preset position, and at the moment, the motor is continuously controlled to work towards the first direction until the absolute value of the first difference between the first rotating angle and the target angle is smaller than or equal to the first threshold.

Fig. 21 is a flowchart showing a control method of the door body assembly according to the third embodiment of the present invention.

As shown in fig. 21, the control method of the door body assembly includes:

s402, receiving a working instruction, and controlling the electromagnetic assembly to drive the clutch gear to be meshed with the transmission gear;

s404, controlling the motor to work towards a first direction according to the working instruction, and driving the door body to rotate;

s406, acquiring a first rotation angle of the door body;

s408, calculating the absolute value of a first difference value between the first rotating angle and the target angle;

s410, judging whether the absolute value of the first difference value is larger than or equal to a first threshold value, if so, executing S404, otherwise, executing S412;

s412, controlling the electromagnetic assembly to drive the clutch gear to be disconnected with the transmission gear;

s414, acquiring a second rotation angle of the door body;

s416, calculating the absolute value of a second difference value between the second rotation angle and the target angle;

s418, judging whether the absolute value of the second difference value is larger than or equal to a second threshold value, if so, executing S414, otherwise, executing S420;

and S420, controlling the motor to stop working.

In the embodiment, in the free sliding process of the door body, the motion state of the door body is detected in real time, the second rotation angle of the door body is obtained, then the absolute value of a second difference value between the second rotation angle and the target angle is calculated, and whether the door body reaches a second preset position is judged according to the absolute value of the second difference value and a second threshold value. Specifically, when the absolute value of the second difference is smaller than or equal to the second threshold, the door body reaches a second preset position, and the motor is controlled to be powered off at the moment; when the absolute value of the second difference is larger than the second threshold, the door body does not reach the second preset position, and free sliding of the door body is continuously guaranteed until the absolute value of the second difference between the second rotating angle and the target angle is smaller than or equal to the second threshold. Specifically, the second preset angle is smaller than the first preset angle.

In a specific embodiment, when the absolute value of the first difference is smaller than 10 °, it indicates that the door body has reached the first preset position.

Fig. 22 is a flowchart showing a control method of the door body assembly according to the third embodiment of the present invention.

As shown in fig. 22, the control method of the door body assembly includes:

s502, receiving a working instruction, and controlling an electromagnetic assembly to drive a clutch gear to be meshed with a transmission gear;

s504, controlling the motor to work towards a first direction according to the working instruction, and driving the door body to rotate;

s506, acquiring a first rotation angle of the door body;

s508, calculating the absolute value of a first difference value between the first rotating angle and the target angle;

s510, judging whether the absolute value of the first difference is larger than or equal to a first threshold value, if so, executing S506, otherwise, executing S512;

s512, controlling the electromagnetic assembly to drive the clutch gear to be disconnected with the transmission gear;

s514, acquiring a second rotation angle of the door body;

s516, calculating the absolute value of a second difference value between the second rotating angle and the target angle;

s518, judging whether the absolute value of the second difference value is larger than or equal to a second threshold value, if so, executing S514, otherwise, executing S520;

s520, controlling the motor to stop working for a first preset time;

s522, controlling the motor to work towards the first direction for a second preset time;

s524, controlling the motor to stop working for a third preset time;

and S526, controlling the motor to work towards the second direction for a second preset time.

In this embodiment, after the motor stops operating, there is friction force to prevent the clutch gear and the transmission gear from being separated because the clutch gear and the transmission gear are still in a contact state. Therefore, after the motor is controlled to stop working, the clutch gear is guaranteed to be better disengaged by shaking generated by forward rotation and reverse rotation of the motor. Specifically, after the motor is controlled to stop working, the motor is guaranteed to stop working for a first preset time, then the motor is controlled to continue working towards the first direction for a second preset time, then the motor is controlled to stop working for a third preset time, and finally the motor is controlled to work towards the second direction for the second preset time. The motor is controlled to generate bidirectional shaking after the motor is powered off, friction between the clutch gear and the transmission gear is eliminated and reduced, the clutch gear is separated from the transmission gear in the shaking process, and the clutch gear is guaranteed to be better separated.

In a specific embodiment, when the absolute value of the second difference is smaller than 2 °, it indicates that the door body has reached the second preset position.

In a specific embodiment, the rotation of the door body is divided into three processes, the first process is a stage from the beginning of the rotation of the door body to the arrival of the door body at a first preset position, and when the door body arrives at the first preset position, the connection between the clutch gear and the transmission gear is disconnected; when the door body reaches the stage of the second preset position, stopping the motor to work again to cut off the power of the motor; the third process is the shaking after the motor stops working.

In an embodiment of the present invention, preferably, the first preset time period ranges from 0.1 second to 0.5 second; the second preset duration ranges from 0.1 second to 0.5 second.

In this embodiment, on the premise of ensuring better disengagement of the clutch gear, the value range of the first preset time period for the motor to work is set to 0.1 to 0.5 seconds, and the value range of the second preset time period is set to 0.1 to 0.5 seconds, so that the best shaking effect is ensured, and the clutch gear is ensured to be better disengaged.

Fig. 23 is a flowchart illustrating a control method of the door assembly according to an embodiment of the present invention.

As shown in fig. 23, the control method of the door body assembly includes:

s602, receiving a door opening request;

s604, electrifying the electromagnet, and combining the clutch gear with the running gear set by the push rod;

s606, the motor of the driving gear is electrified to start working;

s608, acquiring the state information of the current door opening angle or position in real time;

s610, judging whether the door opening angle reaches the vicinity of a first preset stop position, if so, executing S612, otherwise, executing S608;

s612, the electromagnet is powered off (or is powered on reversely to withdraw the clutch gear);

s614, judging that the door opening angle reaches the position close to the second preset stop position, if so, executing S616, otherwise, executing S612;

and S616, powering off the gear motor.

In the embodiment, firstly, a door opening request (an input signal for opening or closing a door) is received, then the electromagnet is controlled to be electrified, and the push rod is driven to enable the clutch gear to be combined with the running gear set; after the clutch gear is meshed with the running gear set, a motor of the driving gear is electrified to start working, and the rotation of the door body is realized; and in the rotating process of the door body, acquiring the state information of the current door opening angle or position in real time, and judging whether the door opening angle reaches the position close to the first preset stop position. Specifically, whether the absolute value of the difference between the current door opening angle and the target door opening angle is smaller than or equal to 10 degrees or not can be judged, if the judgment result is yes, the electromagnet is controlled to be powered off (or reversely powered on to withdraw the clutch gear), the output of the torque of the motor is disconnected, and the subsequent gear slides freely for a certain distance along with the door body; if the judgment result is negative, the state information of the current door opening angle or position is obtained again and repeated judgment is carried out. And after the electromagnet is powered off, judging that the door opening angle reaches the position close to the second preset stop position again. Specifically, whether the absolute value of the difference between the current door opening angle and the target door opening angle is less than or equal to 2 degrees or not can be judged, and if the judgment result is yes, the motor is controlled to be powered off; otherwise, the state information of the current door opening angle or position is obtained again and repeated judgment is carried out.

As shown in fig. 24, the control method of the door assembly includes:

s702, receiving a door opening request;

s704, electrifying the electromagnet, and enabling the clutch gear to be combined with the running gear set by the push rod;

s706, electrifying a motor of the driving gear to start working;

s708, acquiring the state information of the current door opening angle or position in real time;

s710, judging that the door opening angle reaches the vicinity of a first preset stop position, if so, executing S712, otherwise, executing S708;

s712, the electromagnet is powered off (or is powered on reversely to withdraw the clutch gear);

s714, judging that the door opening angle reaches the vicinity of a second preset stop position, if so, executing S716, otherwise, executing S712;

s716, driving the gear motor to be powered off;

s718, delaying for T1 seconds;

s720, driving a motor of the gear, and electrifying for T2 seconds according to the original direction;

s722, driving a motor of the gear, and electrifying and operating for T2 seconds in the reverse direction;

and S724, driving the gear motor to be powered off.

In the embodiment, after the power of the motor of the driving gear is cut off, the power-off state T1 seconds is delayed, then the motor of the driving gear is electrified and operated for T2 seconds in the original direction, then the motor of the driving gear is electrified and operated for T2 seconds in the reverse direction, so that the motor of the driving gear has a shaking state, the forward rotation, the overturning and the shaking of the driving motor after stopping are increased, and the clutch gear is better disengaged. Specifically, the shaking control can execute a clutch gear or a plurality of gears, and the value range of T1 and T2 is between 0.1 second and 0.5 second.

A fourth aspect of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when being executed by a processor, realizes the steps of the control method of the door body assembly according to any one of the above embodiments.

The invention provides a computer-readable storage medium on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the control method of the door body assembly according to any one of the embodiments described above. Therefore, the control method of the door body assembly according to any one of the embodiments has all the advantages.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A door assembly, comprising:

a drive mechanism;

the door body is connected with an output shaft of the driving mechanism and driven by the driving mechanism to rotate;

the magnetic part is arranged on the door body or the output shaft;

the sensor is arranged on the driving mechanism and used for detecting the position of the magnetic part;

and the controller is connected with the sensor and the driving mechanism, determines the position of the door body according to the position of the magnetic part and controls the driving mechanism to work.

2. The door body assembly of claim 1, wherein the drive mechanism comprises:

the output end of the motor is provided with a driving gear;

the driving gear is meshed with the driving gear and driven by the driving gear to rotate;

the driven gear is connected with the output shaft and drives the output shaft to rotate;

the clutch gear set is respectively meshed with the driving gear and the driven gear;

and the electromagnetic assembly is connected with the clutch gear set and the controller, and the electromagnetic assembly drives the clutch gear set to be respectively meshed with the driving gear and the driven gear under the control of the controller.

3. The door body assembly of claim 2, wherein the clutch gear set includes:

a drive shaft;

the first clutch gear is sleeved on the transmission shaft and meshed with the driving gear;

and the second clutch gear is sleeved on the transmission shaft and can slide along the transmission shaft, and the second clutch gear is meshed with the driven gear under the driving of the electromagnetic assembly.

4. The door body assembly of claim 3, further comprising:

the elastic piece is sleeved on the transmission shaft and located between the first clutch gear and the second clutch gear, and the second clutch gear is disconnected from the driven gear under the action of the elastic piece.

5. The door body assembly according to any one of claims 1 to 4, further comprising:

the instruction acquisition device is arranged on the door body, is connected with the controller and is used for acquiring a working instruction;

and the controller controls the driving mechanism to work according to the working instruction.

6. Refrigeration apparatus, comprising a door body assembly according to any one of claims 1 to 5.

7. A method of controlling a door assembly, comprising:

receiving a working instruction, and controlling the electromagnetic assembly to drive the clutch gear to be meshed with the transmission gear;

controlling the motor to work towards a first direction according to the working instruction, and driving the door body to rotate;

and the door body reaches a first preset position and controls the electromagnetic assembly to drive the clutch gear to be disconnected with the transmission gear.

8. The control method of the door body assembly according to claim 7, wherein after the step of controlling the electromagnetic assembly to drive the clutch gear to be disconnected from the transmission gear when the door body reaches the first preset position, the method further comprises the following steps:

and the door body reaches a second preset position and controls the motor to stop working.

9. The control method of the door body assembly according to claim 7, wherein after the step of controlling the motor to operate in the first direction according to the operation command and driving the door body to rotate, the method further comprises:

acquiring a first rotation angle of the door body;

calculating an absolute value of a first difference between the first rotation angle and a target angle;

and judging whether the door body reaches the first preset position or not according to the absolute value of the first difference and the first threshold.

10. The control method of the door body assembly according to claim 8, wherein before the step of controlling the motor to stop working when the door body reaches the second preset position, the method further comprises the following steps:

acquiring a second rotation angle of the door body;

calculating an absolute value of a second difference between the second rotation angle and a target angle;

and judging whether the door body reaches the second preset position or not according to the absolute value of the second difference value and the second threshold value.

11. The control method of the door body assembly according to claim 8, wherein the step of controlling the motor to stop working after the door body reaches the second preset position further comprises the following steps:

controlling the motor to stop working for a first preset time;

stopping the motor to work for the first preset time, and controlling the motor to work towards the first direction for a second preset time;

the motor works towards the first direction to a second preset time length, and the motor is controlled to stop working to a third preset time length;

stopping the motor to work for a third preset time, and controlling the motor to work towards the second direction for a second preset time;

wherein the first direction is opposite to the second direction.

12. The control method of the door body assembly according to claim 11,

the value range of the first preset time is 0.1 to 0.5 seconds;

the value range of the second preset time is 0.1 to 0.5 seconds.

13. A computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements a control method of a door body assembly according to any one of claims 7 to 12.