CN114777385A - Automatic door opening and closing device of refrigerator, refrigerator and control method of refrigerator - Google Patents
Automatic door opening and closing device of refrigerator, refrigerator and control method of refrigerator Download PDFInfo
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- CN114777385A CN114777385A CN202210542678.7A CN202210542678A CN114777385A CN 114777385 A CN114777385 A CN 114777385A CN 202210542678 A CN202210542678 A CN 202210542678A CN 114777385 A CN114777385 A CN 114777385A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims description 17
- 230000007246 mechanism Effects 0.000 claims description 14
- 230000033001 locomotion Effects 0.000 claims description 7
- 230000008602 contraction Effects 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 14
- 230000035484 reaction time Effects 0.000 description 7
- 230000009467 reduction Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
Abstract
The invention discloses an automatic door opening and closing device of a refrigerator, the refrigerator and a control method thereof, wherein the automatic door opening and closing device of the refrigerator comprises: the door body seal is arranged on a door body of the refrigerator and is used for being connected with an inner container of the refrigerator in a sealing way; the telescopic device is connected with the door body sealing strip and is used for controlling the door body sealing strip to withdraw when the refrigerator automatically opens the door so as to separate the door body from the inner container of the refrigerator; and the rotary actuator is connected with the door body and used for controlling the door body to be opened after the door body seal is withdrawn. The invention solves the problem that the pushing force is too large or too small when the refrigerator is automatically opened in the prior art, so that the automatic opening process of the refrigerator is more stable and reliable, and the intelligence of automatic opening and closing door control and the use experience of a user are improved.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to an automatic door opening and closing device for a refrigerator, the refrigerator and a control method of the refrigerator.
Background
The traditional refrigerator generally adopts a manual door opening and closing device, when the door is opened, the door body and the refrigerator body are separated to overcome the sealing suction force of the door body and the refrigerator body door, and therefore, a large force is needed when the door is opened. However, the excessive force is easy to cause the articles on the bottle frame of the door body to topple over, and the children can be accidentally injured. Meanwhile, when the door is closed manually, the phenomenon that the articles on the bottle frame are knocked over or clamped by hands due to the fact that the door is too forcefully violently closed can occur. In addition, when both hands are occupied, the door can not be opened or closed.
Along with the development of the refrigerator industry, the intelligent and humanized design of the refrigerator brings convenience to the life of consumers, and is more and more popular with the consumers, particularly to the refrigerator with the door automatically opened and closed. However, most of refrigerators with automatic opening and closing doors need to push the door body and the refrigerator body open first and then rotate the door body to open the door, and the pushing force may be too large or too small in the above-mentioned process. When the pushing force is too large, the phenomena that the refrigerator is easy to shake, articles on the bottle frame of the door body topple over and the like still exist. When the pushing force is too small, the door body cannot be opened.
Aiming at the problem that in the prior art, when the refrigerator is automatically opened, the door body and the refrigerator body need to be pushed away, and the pushing force is too large or too small, an effective solution is not provided at present.
Disclosure of Invention
The invention provides an automatic door opening and closing device of a refrigerator, the refrigerator and a control method of the refrigerator, and at least solves the problem that in the prior art, when the refrigerator is automatically opened, a door body and a refrigerator body need to be pushed away, and the pushing force is too large or too small.
To solve the above technical problem, according to an aspect of an embodiment of the present invention, there is provided an automatic door opening and closing device for a refrigerator, including:
the door body seal is arranged on a door body of the refrigerator and is used for being connected with an inner container of the refrigerator in a sealing way;
the telescopic device is connected with the door body sealing strip and is used for controlling the door body sealing strip to withdraw when the refrigerator automatically opens the door so as to separate the door body from the inner container of the refrigerator;
and the rotary actuator is connected with the door body and used for controlling the door body to be opened after the door body seal is withdrawn.
Furthermore, the telescopic device is also used for controlling a door seal to extend out after the door body is opened or the refrigerator is automatically closed; the rotary actuator is also used for controlling the door body to close when the refrigerator is automatically closed.
Further, the telescopic device comprises: the telescopic rod is connected with the door body seal and used for controlling the door body seal to retract or extend; and the boosting device is connected with the telescopic rod and used for controlling the telescopic rod to move so as to retract or extend the door body seal.
Further, the assist device includes: the pushing shaft is connected with the telescopic rod and used for pushing the telescopic rod to move; the first driving motor is used for driving the screw shaft to move; and one end of the first transmission mechanism is connected with the first driving motor, and the other end of the first transmission mechanism is connected with the pushing shaft and is used for transmitting the driving force of the first driving motor to the pushing shaft.
Further, the assist apparatus further includes: and the limit switch is positioned on the gear box and used for limiting the motion range of the pushing shaft so as to limit the maximum stroke of the retraction or extension of the telescopic rod.
Furthermore, the rotary actuator is connected with the rotating shaft of the door body and is used for controlling the rotating shaft to rotate so as to control the door body to be opened or closed.
Further, the rotary actuator includes: the second driving motor is used for driving the rotating shaft to rotate; and one end of the second transmission mechanism is connected with the second driving motor, and the other end of the second transmission mechanism is connected with the rotating shaft and used for transmitting the driving force of the second driving motor to the rotating shaft.
According to another aspect of an embodiment of the present invention, there is provided a refrigerator including:
the refrigerator body, the door body and the automatic door opening device of the refrigerator.
Further, still include: the display screen is arranged on the door body and used for controlling the temperature of the compartment of the refrigerator; and the voice module is used for acquiring a voice control signal of a user and controlling the automatic door opening device of the refrigerator to automatically open or close the door according to the voice control signal.
According to another aspect of the embodiments of the present invention, there is provided a refrigerator control method applied to the refrigerator as described above, the method including:
acquiring a control signal of a user; wherein the control signal at least comprises a door opening control signal and a door closing control signal;
and controlling the automatic door opening device of the refrigerator to automatically open or close the door according to the control signal.
Further, according to the control signal, the automatic door opening device of the refrigerator is controlled to automatically open the door, comprising: controlling a first driving motor to start, and controlling a door body sealing strip to withdraw through a telescopic device to separate a door body from an inner container of the refrigerator; after the door body is separated from the inner container of the refrigerator, the second driving motor is controlled to be started, and the door body is controlled to be opened at a preset speed through the rotary actuator until the door body is completely opened.
Further, through the retracting device control door body seal strip withdraw, include: the door body sealing strip is controlled to be retracted through a pushing shaft of the telescopic device, and the first driving motor is controlled to be shut down after the pushing shaft touches a limit switch; after the door body opens at preset speed, still include: the door seal is pushed out under the control of the telescopic device.
Further, according to the control signal control refrigerator automatic door opener carries out the automatic door closing, include: the door body is controlled to be closed at a preset speed through the rotary actuator until the door body is completely closed.
Further, through the retracting device control door body seal strip withdraw, include: detecting whether the telescopic device starts to operate within a first preset time, and if not, alarming and reminding; control the door body through rotatory executor and close at predetermined speed, include: and detecting whether the rotary actuator starts to operate within second preset time, and if not, alarming and reminding.
Further, before controlling the automatic door opening device of the refrigerator to automatically open or close the door according to the control signal, the method further comprises the following steps: detecting whether the control signal is valid; if the control signal is valid, detecting whether a person is in a preset range of the door body; if people exist in the preset range of the door body, the automatic door opening device of the refrigerator is triggered to automatically open or close the door according to the control signal.
According to still another aspect of an embodiment of the present invention, there is provided a storage medium containing computer-executable instructions for performing the refrigerator control method as described above when executed by a computer processor.
The invention provides a refrigerator capable of automatically opening and closing a door. When the door is automatically opened through the device, the door body sealing strip is separated from the refrigerator liner, the resistance between the door body sealing strip and the refrigerator liner is eliminated, the door pushing process is cancelled, and only the door body needs to be rotated to be opened, so that the problem that the pushing force is too large or too small when the door is automatically opened in the refrigerator in the prior art is effectively solved, the automatic door opening process of the refrigerator is more stable and reliable, and the intelligence of automatic door opening and closing control and the use experience of a user are improved.
Drawings
Fig. 1 is an alternative structure view of an automatic door opening device for a refrigerator according to an embodiment of the present invention;
fig. 2 is an alternative configuration diagram of a refrigerator according to an embodiment of the present invention;
FIG. 3 is an alternative construction of a telescopic device according to an embodiment of the invention;
FIG. 4 is an alternative schematic configuration of a rotary actuator according to an embodiment of the present invention;
FIG. 5 is an alternative schematic configuration of a control system according to an embodiment of the present invention;
FIG. 6 is an alternative configuration of a controller according to an embodiment of the present invention;
fig. 7 is an alternative flowchart of a refrigerator control method according to an embodiment of the present invention;
fig. 8 is an alternative flowchart of an automatic door opening control method of a refrigerator according to an embodiment of the present invention;
fig. 9 is an alternative flowchart of an automatic door closing control method for a refrigerator according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Example 1
In a preferred embodiment 1 of the present invention, there is provided an automatic door opening device for a refrigerator, and in particular, fig. 1 shows an alternative structural schematic diagram of the automatic door opening device for a refrigerator, as shown in fig. 1, the automatic door opening device for a refrigerator includes:
the door body seal 1 is arranged on a door body 4 of the refrigerator and is used for being connected with an inner container of the refrigerator in a sealing way;
the telescopic device 2 is connected with the door body seal 1 and is used for controlling the door body seal 1 to retract when the refrigerator automatically opens the door so as to separate the door body 4 from the inner container of the refrigerator;
and the rotary actuator 3 is connected with the door body 4 and is used for controlling the door body 4 to be opened after the door body seal 1 is retracted. Fig. 2 shows an overall schematic diagram of the refrigerator, and as shown in fig. 2, the refrigerator includes a refrigerator body 5 and door bodies 4, the rotary actuator 3 is connected with the door bodies 4, and each individual door body 4 is provided with the rotary actuator 3 for realizing the rotary opening of the door body 4. Meanwhile, the inner container of the door body 4 is provided with a groove for storing the door body seal 1.
In the embodiment, the automatic door opening device of the refrigerator is provided with the telescopic device on the door body seal, when the refrigerator is automatically opened, the door body seal is controlled to be retracted, so that the door body is separated from the inner container of the refrigerator, and then the door body is controlled to be opened through the rotary actuator. When the door is automatically opened through the device, the door body sealing strip is separated from the refrigerator liner, the resistance between the door body sealing strip and the refrigerator liner is eliminated, the door pushing process is cancelled, and only the door body needs to be rotated to be opened, so that the problem that the pushing force is too large or too small when the door is automatically opened in the refrigerator in the prior art is effectively solved, the automatic door opening process of the refrigerator is more stable and reliable, and the intelligence of automatic door opening and closing control and the use experience of a user are improved.
When the door is automatically closed, the telescopic device 2 is also used for controlling the door seal 1 to extend out; the rotary actuator 3 is also used for controlling the door 4 to close when the refrigerator is automatically closed. In addition, after the door body 4 is opened, the expansion device 2 is also used for controlling the door body seal 1 to extend, namely, the expansion device is pushed back to the initial position to prepare for closing the door body 4, so that the door body 4 can be ensured to be in sealing connection with the inner container of the refrigerator when closed no matter the door body 4 is automatically closed or manually closed.
Fig. 3 shows an alternative construction of the telescopic device, as shown, the telescopic device 2 comprises: the telescopic rod 21 is connected with the door body seal 1 and used for controlling the door body seal 1 to retract or extend; and the boosting device 22 is connected with the telescopic rod 21 and is used for controlling the telescopic rod 21 to move so as to retract or extend the door body seal 1. The assist device 22 includes: the pushing shaft 221 is connected with the telescopic rod 21 and used for pushing the telescopic rod 21 to move; a first driving motor 222 for driving the screw shaft to move; the first transmission mechanism 223 has one end connected to the first driving motor 222 and the other end connected to the pushing shaft 221, and is configured to transmit the driving force of the first driving motor 222 to the pushing shaft 221. The pushing shaft 221 may be a screw rod on which the telescopic rod 21 performs a screw forward and backward movement. The first transmission 223 may be a gear box including a primary reduction gear 2231, a secondary reduction gear 2232, and a tertiary reduction gear 2233. When the door is opened automatically, the driving motor drives the first-stage reduction gear, the second-stage reduction gear set and the third-stage gear to act together, so that the screw shaft rotates forwards to drive the telescopic rod 21 and the door body seal 1 to retract into the door.
Meanwhile, the boosting device 22 further comprises a limit switch 224 on the gear box for limiting the movement range of the pushing shaft 221, thereby limiting the maximum stroke of the retraction or extension of the telescopic rod 21. When the telescopic rod 21 touches the limit switch 224, the power supply of the first driving motor 222 is cut off, the telescopic rod 21 stops moving, and at the moment, the door body seal 1 is retracted into the door body 4, so that the door body seal 1 is separated from the box body 5, and the door seal resistance is eliminated. Optionally, the maximum stroke of the telescopic rod 21 is 20mm, and of course, the maximum stroke of the telescopic rod 21 may also be set according to parameters such as the size of the refrigerator door 4 or the door opening angle.
Fig. 4 shows an alternative structure of the rotary actuator, the box 5 is provided with the rotary actuator 3 for controlling the door 4 to open rotationally, and the rotary actuator 3 is connected to the rotating shaft 41 of the door 4 for controlling the rotating shaft 41 to rotate, so as to control the door 4 to open or close. The rotary actuator 3 includes: a second driving motor 31 for driving the rotation shaft 41 to rotate; the second transmission mechanism 32 has one end connected to the second driving motor 31 and the other end connected to the rotating shaft 41, and is configured to transmit the driving force of the second driving motor 31 to the rotating shaft 41. The rotary actuator 3 is provided with a second transmission mechanism 32 of a second driving motor 31, which may be a gear transmission device, including a gear 321 with a driving motor and a gear transmission mechanism group 322; the input gear of the gear transmission is connected with the output shaft of the second driving motor 31 through a worm gear transmission mechanism, and the output gear of the gear transmission is connected with the rotating shaft 41 of the refrigerator door 4.
The second driving motor 31 is electrically connected to the control device, and when the resistance is applied, the control device senses that the current threshold change exceeds the preset value, and controls the second micro motor to stop working, so as to control the door 4 to stop rotating.
The door opening and closing scheme is suitable for opening and closing the door bodies 4 on the single side of the refrigerator and is also suitable for the condition that the two door bodies 4 of the refrigerator are opened and closed simultaneously.
The door body 4 of the automatic door opening and closing refrigerator is different from the traditional refrigerator door body 4, the door body 4 is provided with the door body seal 1 with the telescopic rod 21, the telescopic rod 21 mechanism is mechanically connected with the door body seal 1, the telescopic rod 21 is electrically connected with the controller, and the telescopic rod 21 is installed in the door body 4. When the refrigerator is in a door closing state, the door body seal 1 is in sealing contact with the refrigerator liner, and the telescopic rod 21 has the maximum stroke at the moment; when the door is opened, the door seal 1 is pulled back into the door 4 under the action of the telescopic rod 21, and the maximum stroke is pulled back, so that the door seal 1 is separated from the refrigerator liner, and the suction force of the door seal 1 is eliminated; after the door is opened, the door seal 1 is pushed back to the initial position through the telescopic rod 21 to prepare for closing the door 4.
Example 2
Based on the automatic door opening device for the refrigerator provided in the above embodiment 1, in a preferred embodiment 2 of the present invention, there is also provided a refrigerator including the automatic door opening device for the refrigerator as described above. Fig. 5 also shows an alternative structural schematic diagram of a control system of the refrigerator, and as shown, the refrigerator further includes: and the display screen (intelligent screen) 6 is arranged on the door body 4 and used for controlling the compartment temperature of the refrigerator, and is also used for displaying food material information, video music and the like. The display screen is connected with the controller.
And the voice module is used for acquiring a voice control signal of a user and controlling the automatic door opening device of the refrigerator to automatically open or close the door according to the voice control signal. The voice module can be arranged in the display screen, and also can be arranged at other positions of the refrigerator, such as the refrigerator door 4. Open the door through speech control's mode, liberate both hands completely, user experience feels better.
Meanwhile, the voice module comprises a radio device and an induction device, and can be installed in the display screen and connected with the controller. The controller is also connected with the door body seal 1 and the rotary actuator 3 and is responsible for controlling the door body seal 1 and the rotary actuator 3. The user sends out a door opening voice command, the sound receiving device sends a command signal to the sensing device, and the sensing device receives the command and detects the command accuracy
Fig. 6 also shows a schematic structural diagram of the controller in the present application, as shown in the figure, the controller mainly includes a power module, a voice module and a control program, the voice module is electrically connected to the control program, the door seal, and the rotary actuator, a signal output end of the voice module is connected to a signal input end of the control program, and an output end of the control program is connected to signal input ends of the door seal and the rotary actuator. The user realizes automatic door opening and closing by changing a threshold value set by a control program, and when the current value of the voice module exceeds a preset value of the program, the controller sends an execution signal to the door body seal and the rotary actuator.
In the embodiment, the automatic door opening device of the refrigerator is provided with the telescopic device on the door body seal, when the refrigerator is automatically opened, the door body seal is controlled to be retracted, so that the door body is separated from the inner container of the refrigerator, and then the door body is controlled to be opened through the rotary actuator. When the door is automatically opened by the aid of the automatic door opening device, the door sealing strip is separated from the refrigerator liner, resistance between the door sealing strip and the refrigerator liner is eliminated, the door pushing process is omitted, the door only needs to be rotated to open, and therefore the problem that in the prior art, the refrigerator has overlarge or undersize thrust when the door is automatically opened is effectively solved, the automatic door opening process of the refrigerator is more stable and reliable, and intelligence of automatic door opening and user experience are improved.
Example 3
In a preferred embodiment 3 of the present invention, there is provided a refrigerator control method applied to the refrigerator in the above-described embodiment 2. Specifically, fig. 7 shows an alternative flowchart of the method, and as shown in fig. 7, the method includes the following steps S702 to S704:
s702: acquiring a control signal of a user; wherein the control signal at least comprises a door opening control signal and a door closing control signal;
s704: and controlling the automatic door opening device of the refrigerator to automatically open or close the door according to the control signal.
In the embodiment, the automatic door opening device of the refrigerator is provided with the telescopic device on the door body seal, when the refrigerator is automatically opened, the door body seal is controlled to be retracted, so that the door body is separated from the inner container of the refrigerator, and then the door body is controlled to be opened through the rotary actuator. When the door is automatically opened through the device, the door body sealing strip is separated from the refrigerator liner, the resistance between the door body sealing strip and the refrigerator liner is eliminated, the door pushing process is cancelled, and only the door body needs to be rotated to be opened, so that the problem that the pushing force is too large or too small when the door is automatically opened in the refrigerator in the prior art is effectively solved, the automatic door opening process of the refrigerator is more stable and reliable, and the intelligence of automatic door opening and closing control and the use experience of a user are improved.
According to control signal control refrigerator automatic door opener and carry out the automation and open the door, include: controlling a first driving motor to start, and controlling a door body sealing strip to withdraw through a telescopic device to separate a door body from an inner container of the refrigerator; after the door body is separated from the inner container of the refrigerator, the second driving motor is controlled to be started, and the door body is controlled to be opened at a preset speed through the rotary actuator until the door body is completely opened.
Withdraw through telescoping device control door body strip of paper used for sealing, include: the pushing shaft of the telescopic device is used for controlling the door body sealing strip to be retracted, and the first driving motor is controlled to be shut down after the pushing shaft touches the limit switch; after the door body opens at preset speed, still include: the extension device is used for controlling the pushing of the door body seal.
According to control signal control refrigerator automatic door opener carries out the automatic door closing, include: the door body is controlled to be closed at a preset speed through the rotary actuator until the door body is completely closed.
Withdraw through telescoping device control door body strip of paper used for sealing, include: detecting whether the telescopic device starts to operate within first preset time, and if the telescopic device does not start to operate within the first preset time, alarming and reminding; control the door body through rotatory executor and close at predetermineeing speed, include: and detecting whether the rotary actuator starts to operate within second preset time, and if not, alarming and reminding.
Before controlling the automatic door opener of the refrigerator to automatically open or close the door according to the control signal, the method further comprises the following steps: detecting whether the control signal is valid; if the control signal is valid, detecting whether a person is in a preset range of the door body; if people exist in the preset range of the door body, the automatic door opening device of the refrigerator is triggered to automatically open or close the door according to the control signal.
Another method for controlling the automatic door opening of a refrigerator is further provided in preferred embodiment 2 of the present invention, and specifically, fig. 8 shows an alternative flowchart of the method, and as shown in fig. 8, the method includes the following steps S801-S811:
s801: starting;
s802: transmitting an open password; a user sends a door opening voice command, the radio receiving device sends a command signal to the sensing device, and the sensing device receives the command and detects the accuracy of the command;
s803: is the door open command determined to be valid? If yes, go to step S804, otherwise, go to step S811; when a user reads out a door opening and closing password, the sensing device senses that the change of a current threshold value exceeds 2.0A within a program set time range, and controls the seal of the telescopic door body to work;
s804: detecting whether a person exists in the running range of the door body; if the door does not work, the step S811 is carried out, and if no person exists in the operation range of the door, the step S805 is carried out;
s805: judging whether the response time of the seal of the retractable door is less than 30 ms; if yes, go to step S806, otherwise, go to step S810; detecting whether the reaction time exceeds the program set time, and if the reaction time does not work after exceeding the program set time, triggering the reaction device to have errors; if the telescopic rod is controlled to work within the program set time, the triggering is successful;
s806: the seal of the expansion door retracts to be separated from the box body; the controller controls a driving motor of the door body seal to work, the driving motor drives a first-stage reduction gear, a second-stage reduction gear set and a third-stage gear to act together, so that the screw shaft rotates forwards to drive the telescopic rod and the door body seal to retract into the door, when the telescopic rod touches the limit switch, the power supply is switched off, the movement is stopped, and at the moment, the door body seal retracts into the door body, so that the door body seal and the box body are separated to eliminate door seal resistance;
s807: the rotary actuator works; after the door body seal is separated from the box body, the rotary actuator works, and the rotary actuator rotates the door body to stably open the door body at the speed of 20 degrees/second until the door body is completely opened;
s808: the seal of the retractable door is rebounded and reset; in the process of rotating and opening the door body, the spiral shaft of the telescopic door body seal strip makes reverse rotation motion under the action of the driving motor and the gear set, the telescopic rod is pushed outwards to drive the door body seal strip to return to the initial position, the motion is stopped when the limit switch is touched, and the door body seal strip returns to the initial position to prepare for closing the door;
s809: opening a door body;
s810: alarming and feeding back a 'dripping' sound; if the door seal does not work for 30ms beyond the program setting, which indicates that the current value does not reach the program preset value, the alarm feeds back a 'dripping' sound, and the voice command is judged to be invalid;
s811: and (6) ending.
In preferred embodiment 2 of the present invention, another method for controlling automatic door closing of a refrigerator is further provided, and specifically, fig. 9 shows an optional flowchart of the method, and as shown in fig. 9, the method includes the following steps S901 to S909:
s901: starting;
s902: transmitting a closing password; a user sends a door closing voice command, the radio receiving device sends a command signal to the sensing device, and the sensing device receives the command and detects the accuracy of the command;
s903: determine whether the door closing command is valid? If yes, go to step S904, otherwise, go to step S909; when a user reads out a door opening and closing password, the sensing device senses that the change of a current threshold value exceeds 2.0A within a program set time range, and controls the seal of the telescopic door body to work;
s904: detecting whether a person exists in the running range of the door body; if the door does not work, the step S909 is executed, and if the door does not work within the operation range, the step S905 is executed;
s905: judging whether the reaction time of the rotary actuator is less than 30 ms; if yes, go to step S906, otherwise, go to step S910; detecting whether the reaction time exceeds the program set time, and if the reaction time exceeds the program set time and does not work, triggering the reaction to be wrong; if the telescopic rod is controlled to work within the program set time, the triggering is successful;
s906: the rotary actuator works; if the rotary actuator works within 30ms, the voice password is valid, and the rotary actuator rotates the door body to close the door body stably at the speed of 20 degrees/second until the door body is completely closed;
s907: closing the door body;
s908: alarm feedback "drop" sound; if the rotary actuator does not work for 30ms beyond the program setting, which indicates that the current value does not reach the program preset value, the control instruction is not triggered, the alarm feeds back the 'dripping' sound, and the voice command is judged to be invalid;
s909: and (6) ending.
The automatic door opening and closing refrigerator detects whether a voice control password is triggered, detects whether a person exists in the operation range of the door body when the voice control password is triggered, if the person exists, the door body does not work, if the person does not exist in the operation range of the door body, detects whether the reaction time of the controller exceeds the program set time, and if the reaction time exceeds the program set time, the controller does not work, and then triggering is mistaken; and if the controller controls the push rod actuator to work within the set time of the program, the triggering is successful. By the scheme, the suction force of the door body sealing strip can be eliminated when the refrigerator starts to automatically open the door, the process that the push rod pushes the door body open is cancelled, and the automatic door opening can be realized only by rotating the door body rotating shaft. And the door is opened and closed in a voice control mode, so that both hands are completely liberated, and the user experience is better.
Example 4
Based on the refrigerator control method provided in the above embodiment 3, there is also provided in a preferred embodiment 4 of the present invention a storage medium containing computer-executable instructions for performing the refrigerator control method as described above when executed by a computer processor.
In the embodiment, the automatic door opening device of the refrigerator is provided with the telescopic device on the door body seal, when the refrigerator is automatically opened, the door body seal is controlled to be retracted, so that the door body is separated from the inner container of the refrigerator, and then the door body is controlled to be opened through the rotary actuator. When the door is automatically opened by the aid of the automatic door opening device, the door sealing strip is separated from the refrigerator liner, resistance between the door sealing strip and the refrigerator liner is eliminated, the door pushing process is omitted, the door only needs to be rotated to open, and therefore the problem that in the prior art, the refrigerator has overlarge or undersize thrust when the door is automatically opened is effectively solved, the automatic door opening process of the refrigerator is more stable and reliable, and intelligence of automatic door opening and user experience are improved.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (16)
1. An automatic door opening and closing device for a refrigerator, comprising:
the door body seal (1) is arranged on a door body (4) of the refrigerator and is used for being connected with an inner container of the refrigerator in a sealing mode;
the telescopic device (2) is connected with the door body seal (1) and used for controlling the door body seal (1) to retract when the refrigerator is automatically opened, so that the door body (4) is separated from the inner container of the refrigerator;
and the rotary actuator (3) is connected with the door body (4) and is used for controlling the door body (4) to be opened after the door body seal (1) is retracted.
2. The automatic door opening and closing device for the refrigerator as claimed in claim 1, wherein the retractable device (2) is further configured to control the door seal (1) to extend after the door (4) is opened or when the refrigerator is automatically closed;
the rotary actuator (3) is also used for controlling the door body (4) to be closed when the refrigerator is automatically closed.
3. The automatic door opening and closing device for refrigerators according to claim 1, wherein the extension and contraction device (2) comprises:
the telescopic rod (21) is connected with the door body seal (1) and is used for controlling the door body seal (1) to retract or extend;
and the boosting device (22) is connected with the telescopic rod (21) and is used for controlling the telescopic rod (21) to move so as to enable the door body seal (1) to retract or extend.
4. The automatic door opening and closing device for refrigerators according to claim 3, wherein the boosting device (22) comprises:
the pushing shaft (221) is connected with the telescopic rod (21) and is used for pushing the telescopic rod (21) to move;
a first driving motor (222) for driving the screw shaft to move;
and a first transmission mechanism (223) with one end connected with the first driving motor (222) and the other end connected with the pushing shaft (221) and used for transmitting the driving force of the first driving motor (222) to the pushing shaft (221).
5. The automatic door opening and closing device for refrigerators according to claim 4, wherein the assist device (22) further comprises:
a limit switch (224) is positioned on the first transmission mechanism (223) and used for limiting the movement range of the pushing shaft (221) so as to limit the maximum retraction or extension stroke of the telescopic rod (21).
6. The automatic door opening and closing device for the refrigerator as claimed in claim 1, wherein the rotary actuator (3) is connected to a rotating shaft (41) of the door body (4) for controlling the rotating shaft (41) to rotate so as to control the door body (4) to open or close.
7. The automatic door opening and closing device for refrigerators according to claim 1, wherein the rotary actuator (3) comprises:
the second driving motor (31) is used for driving the rotating shaft (41) of the door body (4) to rotate;
and one end of the second transmission mechanism (32) is connected with the second driving motor (31), and the other end of the second transmission mechanism is connected with the rotating shaft (41) and is used for transmitting the driving force of the second driving motor (31) to the rotating shaft (41).
8. A refrigerator, characterized by comprising:
the refrigerator comprises a refrigerator body (5), a door body (4) and the automatic door opening device of the refrigerator according to any one of claims 1-7.
9. The refrigerator according to claim 8, further comprising:
the display screen is arranged on the door body (4) and used for controlling the temperature of the compartment of the refrigerator;
and the voice module is used for acquiring a voice control signal of a user and controlling the automatic door opening device of the refrigerator to automatically open or close the door according to the voice control signal.
10. A refrigerator control method applied to the refrigerator according to any one of claims 8 to 9, characterized by comprising:
acquiring a control signal of a user; wherein the control signal at least comprises a door opening control signal and a door closing control signal;
and controlling the automatic door opening device of the refrigerator to automatically open or close the door according to the control signal.
11. The method as claimed in claim 10, wherein controlling the automatic door opener of the refrigerator to automatically open the door according to the control signal comprises:
controlling a first driving motor to start, and controlling a door body sealing strip to withdraw through a telescopic device so as to separate a door body from an inner container of the refrigerator;
after the door body is separated from the inner container of the refrigerator, a second driving motor is controlled to be started, and the door body is controlled to be opened at a preset speed through a rotary actuator until the door body is completely opened.
12. The method of claim 11, wherein controlling retraction of the door seal by a retraction device comprises: the door body sealing strip is controlled to be retracted through a pushing shaft of the telescopic device, and the first driving motor is controlled to be shut down after the pushing shaft touches a limit switch;
after the door body opens at preset speed, still include: the door body sealing strip is controlled to be pushed out through the telescopic device.
13. The method of claim 12, wherein controlling the automatic door opener of the refrigerator to automatically close the door according to the control signal comprises:
and controlling the door body to close at a preset speed through the rotary actuator until the door body is completely closed.
14. The method of claim 13,
control door body strip of paper used for sealing through telescoping device withdraws, include: detecting whether the telescopic device starts to operate within a first preset time or not, and if not, alarming and reminding;
through rotary actuator control the door body is closed at preset speed, include: and detecting whether the rotary actuator starts to operate within second preset time, and if not, alarming and reminding.
15. The method as claimed in claim 10, further comprising, before controlling the automatic door opener of the refrigerator to automatically open or close the door according to the control signal:
detecting whether the control signal is valid;
if the control signal is valid, detecting whether a person is in a preset range of the door body;
and if people exist in the preset range of the door body, triggering the automatic door opening device of the refrigerator to automatically open or close the door according to the control signal.
16. A storage medium containing computer-executable instructions, which when executed by a computer processor, is for performing the refrigerator control method of any one of claims 10 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210542678.7A CN114777385A (en) | 2022-05-18 | 2022-05-18 | Automatic door opening and closing device of refrigerator, refrigerator and control method of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210542678.7A CN114777385A (en) | 2022-05-18 | 2022-05-18 | Automatic door opening and closing device of refrigerator, refrigerator and control method of refrigerator |
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| Publication Number | Publication Date |
|---|---|
| CN114777385A true CN114777385A (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210542678.7A Pending CN114777385A (en) | 2022-05-18 | 2022-05-18 | Automatic door opening and closing device of refrigerator, refrigerator and control method of refrigerator |
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| CN (1) | CN114777385A (en) |
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