CN110318586B - Electric door lock and control method thereof - Google Patents
Electric door lock and control method thereof Download PDFInfo
- Publication number
- CN110318586B CN110318586B CN201810276400.3A CN201810276400A CN110318586B CN 110318586 B CN110318586 B CN 110318586B CN 201810276400 A CN201810276400 A CN 201810276400A CN 110318586 B CN110318586 B CN 110318586B
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- lock tongue
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/02—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means
- E05B47/026—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means the bolt moving rectilinearly
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B2047/0014—Constructional features of actuators or power transmissions therefor
- E05B2047/0018—Details of actuator transmissions
- E05B2047/002—Geared transmissions
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0067—Monitoring
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0067—Monitoring
- E05B2047/0069—Monitoring bolt position
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses an electric door lock and a control method thereof, wherein the electric door lock comprises the following components: the device comprises a motor, a lock tongue and a controller, wherein the installation end of the lock tongue is connected with an elastic mechanism, the motor is in transmission connection with the lock tongue to drive the lock tongue to move, the controller is connected with the motor, the controller can control the motor to operate under a first voltage after acquiring an unlocking instruction, and the controller can control the motor to operate under a second voltage lower than the first voltage after acquiring information used for representing that the lock tongue is located at a recovery position. When the motor operates under the second voltage, the torque of the motor output shaft is smaller, and further the thrust transmitted to the elastic mechanism is smaller, so that the spring can be prevented from being extruded by larger thrust, and the elasticity of the spring and the safety of the electric door lock are ensured.
Description
Technical Field
The invention relates to the technical field of electric door locks, in particular to an electric door lock and a control method thereof.
Background
With the development of science and technology, various electric door locks gradually come into the lives of people.
The electric door lock drives the bolt to do linear motion through the motor, so that the door lock is opened and closed. The installation end of the existing lock tongue is connected with the spring, when no external force acts on the lock tongue, the spring pushes the installation end of the lock tongue to move towards the other end of the lock tongue, so that the lock tongue reaches the pop-up position from the recovery position, and the automatic locking of the door lock is realized.
The inventor researches and discovers that: after the electric door lock drives the lock tongue to reach the recovery position from the pop-up position through the motor, the motor still applies a large thrust to the lock tongue, so that a spring at the installation end of the lock tongue is extruded by the large thrust. After the spring receives the extrusion of long-time great thrust, the elasticity of spring will receive the influence, loses elasticity even for the spring bolt can't reach the pop-up position from retrieving the position automatically, leads to the automatic failure of locking of lock, has reduced electric door lock's security.
Disclosure of Invention
In view of the above problems, the present invention has been made to provide an electric door lock and a control method thereof that overcome or at least partially solve the above problems, in which:
an electric door lock comprising: the device comprises a motor, a lock tongue and a controller, wherein the installation end of the lock tongue is connected with an elastic mechanism, the motor is in transmission connection with the lock tongue to drive the lock tongue to move, the controller is connected with the motor, the motor is controlled to operate under a first voltage after the controller obtains an unlocking instruction, the motor is controlled to operate under a second voltage after the controller obtains information used for representing that the lock tongue is located at a recovery position, and the first voltage is higher than the second voltage.
Optionally, the information for representing that the lock tongue is located at the recovery position is detected by a lock tongue detector for detecting the position of the lock tongue, or the information for representing that the lock tongue is located at the recovery position is: the motor has been operated at a first voltage for a first preset period of time.
Optionally, the controller controls the motor to stop operating when the controller obtains information used for representing that the door body is opened.
Optionally, the information for characterizing that the door body is opened is detected by a door body detector for detecting the position of the door body, or the information for characterizing that the door body is opened is: the motor has been operated at a second voltage for a second preset period of time.
Optionally, the method further includes: the low-voltage power supply module is connected with the motor through the controller, the low-voltage power supply module supplies power to the motor, and the controller controls the working voltage of the motor through controlling the output voltage of the low-voltage power supply module.
Optionally, the method further includes: the motor passes through the power management module is connected with the power supply, and the reverse voltage protection module is connected in series between the power management module and the motor.
Optionally, the method further includes: the motor is in transmission connection with the lock tongue through the at least one straight gear,
when the output shaft of the motor rotates in a first direction, the output shaft of the motor drives the lock tongue to move in a second direction through the at least one straight gear so as to reach a recovery position; when the output shaft of the motor rotates in a third direction, the output shaft of the motor drives the lock tongue to move in a fourth direction through the at least one spur gear so as to reach an ejecting position, wherein the first direction is opposite to the third direction, and the second direction is opposite to the fourth direction.
A method of controlling an electric door lock, the electric door lock comprising: the spring bolt locking device comprises a motor, a spring bolt and a controller, wherein the mounting end of the spring bolt is connected with an elastic mechanism, the motor is in transmission connection with the spring bolt to drive the spring bolt to move, the controller is connected with the motor, and the method comprises the following steps:
after the controller obtains an unlocking instruction, the controller controls the motor to operate under a first voltage;
after the controller obtains the information for representing that the lock tongue is in the recovery position, the controller controls the motor to operate under a second voltage, wherein the first voltage is higher than the second voltage.
Optionally, after the controller obtains the information indicating that the latch bolt is in the retracted position, the controller controls the motor to operate at a second voltage, including:
the controller obtains a lock tongue position detected by the lock tongue detector, and when the lock tongue position is a recovery position, the controller controls the motor to operate under a second voltage;
or after the controller obtains the information that the motor continuously operates at the first voltage for the first preset time period, the controller controls the motor to operate at the second voltage.
Optionally, the method further includes:
when the controller obtains information used for representing that the door body is opened, the controller controls the motor to stop running.
Optionally, when the controller obtains information used for representing that the door body is opened, the controller controls the motor to stop operating, including:
the controller obtains the door position detected by the door detector, and when the door position is an opening position, the controller controls the motor to stop running;
or after the controller obtains the information that the motor continuously operates for a second preset time period under the second voltage, the controller controls the motor to stop operating.
By means of the technical scheme, the invention provides an electric door lock and a control method thereof, wherein the electric door lock comprises the following components: the device comprises a motor, a lock tongue and a controller, wherein the installation end of the lock tongue is connected with an elastic mechanism, the motor is in transmission connection with the lock tongue to drive the lock tongue to move, the controller is connected with the motor, the controller can control the motor to operate under a first voltage after acquiring an unlocking instruction, and the controller can control the motor to operate under a second voltage lower than the first voltage after acquiring information used for representing that the lock tongue is located at a recovery position. When the motor operates under the second voltage, the torque of the motor output shaft is smaller, and further the thrust transmitted to the elastic mechanism is smaller, so that the spring can be prevented from being extruded by larger thrust, and the elasticity of the spring and the safety of the electric door lock are ensured.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram illustrating an electric door lock according to an embodiment of the present invention;
fig. 2 illustrates a partial exploded view of an electric door lock according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating a striking plate engaging hole of an electric door lock according to an embodiment of the present invention;
fig. 4 is a schematic connection diagram illustrating a low voltage power supply module in an electric door lock according to an embodiment of the present invention;
fig. 5 is a schematic connection diagram illustrating a reverse voltage protection module in an electric door lock according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating a control method of an electric door lock according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating another method for controlling an electric door lock according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While embodiments of the invention are illustrated in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 1 and 2, an electric door lock according to an embodiment of the present invention may include: the lock bolt 002 comprises a motor 001, a lock bolt 002 and a controller (not shown in fig. 1 and fig. 2), wherein the installation end of the lock bolt 002 is connected with an elastic mechanism (not shown in the figure), the motor 001 is in transmission connection with the lock bolt 002 to drive the lock bolt 002 to move, if the lock bolt 002 is driven to do linear motion or rotary motion, the controller is connected with the motor 001, the motor 001 is controlled to operate under a first voltage after the controller obtains an unlocking instruction, and the motor 001 is controlled to operate under a second voltage after the controller obtains information for representing that the lock bolt 002 is located at a recovery position, wherein the first voltage is higher than the second voltage.
It should be noted that the type of the locking tongue 002 shown in fig. 1 and 2 of the present invention is only schematically shown, the locking tongue in the embodiment of the present invention is not limited to the one shown in fig. 1 and 2, and any type of locking tongue can be applied to the present invention.
The motor 001 may be in transmission connection with the latch 002 through a transmission mechanism, and the transmission mechanism may be a gear or a gear set, specifically, the transmission mechanism may be at least one spur gear. Namely: the electric door lock provided by the embodiment of the invention also comprises at least one straight gear, and the motor is in transmission connection with the bolt through the at least one straight gear. The embodiment of the invention can have greater flexibility and higher transmission efficiency in the transmission direction by using the straight gear for transmission. For example: when the output shaft of the motor 001 rotates in a first direction (such as forward rotation), the output shaft of the motor 001 drives the bolt 002 to move (such as linear movement or rotary movement) in a second direction through at least one straight gear so as to reach a recovery position; when the output shaft of the motor 001 rotates in a third direction (e.g., reverse rotation), the output shaft of the motor 001 drives the latch tongue 002 to move (e.g., move linearly or rotationally) in a fourth direction through at least one spur gear to reach the pop-up position, where the first direction is opposite to the third direction, and the second direction is opposite to the fourth direction. Therefore, the transmission direction of the straight gear can realize bidirectional transmission, and the motor 001 can drive the lock tongue to move in different directions through the straight gear so as to respectively reach the recovery position and the pop-up position, thereby realizing electric locking and electric unlocking.
Referring to fig. 1 to fig. 3, another electric door lock provided in the embodiment of the present invention may further include: the lock body plectrum 004 and the plectrum clamping hole 005. The motor 001 is in transmission connection with the shifting piece clamping hole 005, and when an output shaft of the motor 001 rotates, the shifting piece clamping hole 005 is driven to rotate; similarly, when the engaging hole 005 rotates, the output shaft of the motor 001 is also driven to rotate. Simultaneously, plectrum joint hole 005 still with lock body plectrum 004 joint, lock body plectrum 004 and spring bolt 002 swing joint, when plectrum joint hole 005 was rotatory, will drive the rotatory and then drive spring bolt 002 and move of lock body plectrum 004, if carry out linear motion or rotary motion.
The electric door lock may include: the lock body panels are respectively arranged on two sides of the door body, and the controller can be arranged between the two lock body panels. Specifically, a circuit board may be disposed between the lock body panels, and the controller may be disposed on the circuit board.
Wherein, the elastic mechanism can be a spring. Specifically, the latch tongue 002 may be an oblique tongue (as shown in 002), a square tongue, a round tongue, or the like.
In other embodiments of the present invention, the electric door lock provided in the embodiments of the present invention may further include a verification mechanism, where the verification mechanism may be: fingerprint detectors, password input panels, and the like. The electric door lock can also be in communication connection with other electronic equipment to obtain messages sent by the other electronic equipment, such as an unlocking instruction or a locking instruction and the like.
Specifically, the unlocking instruction may be various, such as: the password passing instruction, the unlocking instruction sent by the authenticated electronic equipment, the fingerprint verification passing instruction and the like.
Alternatively, the first voltage may be a rated operating voltage of the motor, such as: 7.4 volts. After the controller obtains an unlocking instruction, the controller can control the motor to drive the lock tongue to move under higher voltage and reach a recovery position, so that unlocking is realized. After the door is unlocked, a user can open the door to enter the room.
After the controller obtains the information that is used for the sign the spring bolt 002 is in the retrieval position, the controller control motor 001 moves under the second voltage, because the second voltage (for example be 2 volts) is less than first voltage, consequently, when the motor moves under the second voltage, the moment of torsion of motor output shaft is less, and then the transmission is also less for the thrust of elastic mechanism, can prevent that the spring from receiving the extrusion of great thrust, has guaranteed the elasticity of spring and the security of electric door lock.
It will be appreciated that although the second voltage is less than the first voltage, the motor operating at the second voltage still provides a pushing force to the resilient mechanism such that the bolt is held in the retracted position by the pushing force. It will be appreciated that after the bolt reaches the retracted position, it takes a user some time (e.g. around 2 seconds) to open the door, and therefore the bolt needs to be controlled to remain in the retracted position to prevent the bolt from popping out again and causing the lock to lock again.
Optionally, in practical application, the information for representing that the locking bolt 002 is located at the recycling position may be detected by a locking bolt detector that detects the position of the locking bolt 002, or the information for representing that the locking bolt 002 is located at the recycling position is: the motor 001 has been operated at the first voltage for a first preset period of time. Alternatively, the deadbolt detector may or may not be part of the power door lock provided by embodiments of the present invention. The bolt detector can be electrically connected with the controller, and sends the detected bolt position signal to the controller.
The lock tongue detector can be various, and the lock tongue detector comprises a laser transmitter and a laser receiver, wherein the laser transmitter and the laser receiver are respectively arranged on two sides of the lock tongue, and when the lock tongue reaches the recovery position, laser emitted by the laser transmitter can be received by the laser receiver. When the bolt is in other positions (such as the pop-up position or a certain position between the pop-up position and the recovery position), the laser emitted by the laser emitter is blocked by the bolt, and at the moment, the laser receiver cannot receive the laser. Therefore, the invention can realize the detection of the position of the lock tongue. Of course, in practical applications, there are many ways to detect the position of the lock tongue, and the present invention is not limited to the above one. Specifically, the lock tongue detector can be arranged on the door body and also can be arranged on the door frame.
In practical applications, the rotation speed of the motor is controllable, and when the motor works under a certain voltage, the rotation speed of the motor is small in fluctuation or unchanged (the rotation speed is unchanged under a theoretical condition), so that the invention can determine how long the motor is continuously operated under the first voltage to push the bolt from the ejection position to the recovery position. Namely: the first preset time period may be a length of time it takes for the motor to continue to operate at the first voltage to push the latch bolt from the pop-up position to the recovery position. Of course, in other embodiments of the present invention, the first preset time period may also be a preset multiple of the time period, such as 1.2 times. Therefore, the position of the lock tongue can be determined according to the running time of the motor, and the method is convenient and accurate.
Further, when the controller in the embodiment shown in fig. 1 and 2 obtains the information indicating that the door body is opened, the controller may control the motor 001 to stop operating.
It can be understood that when the door body is opened, the lock tongue needs to reach the pop-up position from the recovery position under the action of the elastic mechanism, and thus, when a user closes the door body, the lock tongue can be automatically locked. Therefore, when the door body is opened, the controller controls the motor 001 to stop running, so that the motor does not apply acting force to the bolt any more. Under the condition, the lock tongue pops out to the popping position under the action of the elastic mechanism, so that the safety of the lock body is ensured.
Specifically, the information for representing that the door body is opened may be detected by a door body detector that detects the position of the door body, or the information for representing that the door body is opened may be: the motor 001 has been operated at the second voltage for a second preset period of time.
The electric door lock provided by the embodiment of the invention also comprises a door body detector. The door body detector can be electrically connected with the controller and sends detected door body position signals to the controller. The door body detector can be of various types, such as: distance sensors, rotation sensors, etc. The following description will be given taking a distance sensor as an example: according to the invention, the distance sensor can be arranged on the door frame and used for detecting the position from the distance sensor to the door body, and when the position is greater than the threshold value, the door body can be determined to be opened. The following description will take the rotation sensor as an example: the rotation sensor can be arranged on the door body rotation shaft and used for detecting the rotation angle of the door body, so that the position of the door body can be determined according to the rotation angle of the door body.
In general, a user can open the door immediately after the door lock is opened, so that the door lock can set a second preset time period, and when the motor 001 continuously operates for the second preset time period under the second voltage, the door body can be determined to be opened, and at this time, the controller of the invention can control the motor 001 to stop operating. Wherein the second preset time period may be a certain time period of 1 to 3 seconds.
As shown in fig. 4, another electric door lock provided in the embodiment of the present invention may further include: the low voltage power supply module 100, the controller 200 is connected to the motor 001 through the low voltage power supply module 100, the low voltage power supply module 100 supplies power to the motor 001, and the controller 200 controls the operating voltage of the motor 001 by controlling the output voltage of the low voltage power supply module 100.
The low-voltage power supply module 100 is an electronic unit capable of adjusting voltage, and specifically, the low-voltage power supply module 100 may be a DC-DC voltage adjustment module, i.e., a DC-DC voltage adjustment module.
Specifically, the controller 200 of the present invention may control the output voltage of the low voltage power supply module 100 to be a first voltage, a second voltage or other voltages.
As shown in fig. 5, another electric door lock provided in the embodiment of the present invention may further include: a power management module 300 and a reverse voltage protection module 400, the motor 001 is connected with a power source through the power management module 300, and the reverse voltage protection module 400 is connected in series between the power management module 300 and the motor 001.
The power management module 300 is an electronic unit having functions of transforming voltage and changing current direction, and the power management module 300 can change the voltage of the power source to the rated operating voltage of the motor. Meanwhile, in the embodiment of the present invention, the power management module 300 may also change the current direction, and control the forward and reverse rotation of the motor 001 by changing the current direction.
As shown in fig. 1, 2 and 5, the electronic door lock of the present invention may further include: and a manual knob 009 in transmission connection with the motor 001, specifically, the manual knob 009 can be in transmission connection with the plectrum clamping hole 005. Rotation of the manual knob 009 (back locking as shown by the arrow) will cause the motor 001 to rotate and generate a back voltage that will cause damage to the power management module 300. According to the invention, the reverse voltage protection module 400 is connected in series between the power management module 300 and the motor 001, so that the reverse voltage protection module 400 reduces or even blocks the reverse voltage between the power management module 300 and the motor 001, and the power management module 300 is effectively protected.
Corresponding to the above device embodiments, embodiments of the present invention further provide a method for controlling an electric door lock, where the method is applied to the electric door lock shown in fig. 1 and 2, and the electric door lock may include: the motor 001, the bolt 002 and the controller, the installation end of the bolt 002 is connected with the elastic mechanism, the motor 001 is connected with the bolt 002 in a transmission way to drive the bolt 002 to move, such as to drive the bolt 002 to move linearly or rotationally, the controller is connected with the motor 001, as shown in fig. 6, the method may include:
s100, after the controller obtains an unlocking instruction, the controller controls the motor 001 to operate under a first voltage;
s200, after the controller obtains information for representing that the bolt 002 is located at the recovery position, the controller controls the motor 001 to operate at a second voltage, wherein the first voltage is higher than the second voltage.
Specifically, the electric door lock provided by the embodiment of the invention further comprises at least one spur gear, and the motor is in transmission connection with the bolt through the at least one spur gear. The embodiment of the invention can have greater flexibility and higher transmission efficiency in the transmission direction by using the straight gear for transmission. The method shown in fig. 6 may further include: the controller controls the output shaft of the motor 001 to rotate according to a first direction (such as forward rotation) so as to drive the bolt 002 to move (such as linear motion or rotary motion) along a second direction through at least one straight gear and reach a recovery position; the controller controls the output shaft of the motor 001 to rotate according to a third direction (e.g. reverse rotation) to drive the latch tongue 002 to move (e.g. perform linear motion or rotational motion) along a fourth direction through at least one spur gear and reach the pop-up position, wherein the first direction is opposite to the third direction, and the second direction is opposite to the fourth direction. Therefore, the transmission direction of the straight gear can realize bidirectional transmission, and the motor 001 can drive the lock tongue to move in different directions through the straight gear so as to respectively reach the recovery position and the pop-up position, thereby realizing electric locking and electric unlocking.
Referring to fig. 1 to fig. 3, the electric door lock according to the embodiment of the present invention may further include: the lock body plectrum 004 and the plectrum clamping hole 005. The motor 001 is in transmission connection with the shifting piece clamping hole 005, and when an output shaft of the motor 001 rotates, the shifting piece clamping hole 005 is driven to rotate; similarly, when the engaging hole 005 rotates, the output shaft of the motor 001 is also driven to rotate. Simultaneously, plectrum joint hole 005 still with lock body plectrum 004 joint, lock body plectrum 004 and spring bolt 002 swing joint, when plectrum joint hole 005 was rotatory, will drive the rotatory and then drive spring bolt 002 and move of lock body plectrum 004, if carry out linear motion or rotary motion.
The electric door lock may include: the lock body panels are respectively arranged on two sides of the door body, and the controller can be arranged between the two lock body panels. Specifically, a circuit board may be disposed between the lock body panels, and the controller may be disposed on the circuit board.
Wherein, the elastic mechanism can be a spring. Specifically, the latch tongue 002 may be an oblique tongue (as shown in 002), a square tongue, a round tongue, or the like.
In other embodiments of the present invention, the electric door lock provided in the embodiments of the present invention may further include a verification mechanism, where the verification mechanism may be: fingerprint detectors, password input panels, and the like. The electric door lock can also be in communication connection with other electronic equipment to obtain messages sent by the other electronic equipment, such as an unlocking instruction or a locking instruction and the like.
Specifically, the unlocking instruction may be various, such as: the password passing instruction, the unlocking instruction sent by the authenticated electronic equipment, the fingerprint verification passing instruction and the like.
Alternatively, the first voltage may be a rated operating voltage of the motor, such as: 7.4 volts. After the controller obtains an unlocking instruction, the controller can control the motor to drive the lock tongue to move under higher voltage and reach a recovery position, so that unlocking is realized. After the door is unlocked, a user can open the door to enter the room.
After the controller obtains the information that is used for the sign the spring bolt 002 is in the retrieval position, the controller control motor 001 moves under the second voltage, because the second voltage (for example be 2 volts) is less than first voltage, consequently, when the motor moves under the second voltage, the moment of torsion of motor output shaft is less, and then the transmission is also less for the thrust of elastic mechanism, can prevent that the spring from receiving the extrusion of great thrust, has guaranteed the elasticity of spring and the security of electric door lock.
It will be appreciated that although the second voltage is less than the first voltage, the motor operating at the second voltage still provides a pushing force to the resilient mechanism such that the bolt is held in the retracted position by the pushing force. It will be appreciated that after the bolt reaches the retracted position, it takes a user some time (e.g. around 2 seconds) to open the door, and therefore the bolt needs to be controlled to remain in the retracted position to prevent the bolt from popping out again and causing the lock to lock again.
Optionally, in practical application, the information for representing that the locking bolt 002 is located at the recycling position may be detected by a locking bolt detector that detects the position of the locking bolt 002, or the information for representing that the locking bolt 002 is located at the recycling position is: the motor 001 has been operated at the first voltage for a first preset period of time. Alternatively, the deadbolt detector may or may not be part of the power door lock provided by embodiments of the present invention. The bolt detector can be electrically connected with the controller, and sends the detected bolt position signal to the controller.
The lock tongue detector can be various, and the lock tongue detector comprises a laser transmitter and a laser receiver, wherein the laser transmitter and the laser receiver are respectively arranged on two sides of the lock tongue, and when the lock tongue reaches the recovery position, laser emitted by the laser transmitter can be received by the laser receiver. When the bolt is in other positions (such as the pop-up position or a certain position between the pop-up position and the recovery position), the laser emitted by the laser emitter is blocked by the bolt, and at the moment, the laser receiver cannot receive the laser. Therefore, the invention can realize the detection of the position of the lock tongue. Of course, in practical applications, there are many ways to detect the position of the lock tongue, and the present invention is not limited to the above one. Specifically, the lock tongue detector can be arranged on the door body and also can be arranged on the door frame.
In practical applications, the rotation speed of the motor is controllable, and when the motor works under a certain voltage, the rotation speed of the motor is small in fluctuation or unchanged (the rotation speed is unchanged under a theoretical condition), so that the invention can determine how long the motor is continuously operated under the first voltage to push the bolt from the ejection position to the recovery position. Namely: the first preset time period may be a length of time it takes for the motor to continue to operate at the first voltage to push the latch bolt from the pop-up position to the recovery position. Of course, in other embodiments of the present invention, the first preset time period may also be a preset multiple of the time period, such as 1.2 times. Therefore, the position of the lock tongue can be determined according to the running time of the motor, and the method is convenient and accurate.
Wherein, step S200 may specifically include:
the controller obtains a bolt 002 position detected by the bolt detector, and when the bolt 002 position is a recovery position, the controller controls the motor 001 to operate under a second voltage;
or, after obtaining the information that the motor 001 has continuously operated at the first voltage for the first preset time period, the controller controls the motor 001 to operate at the second voltage.
On the basis of the method shown in fig. 6, as shown in fig. 7, another method for controlling an electric door lock according to an embodiment of the present invention may further include:
s300, when the controller obtains information used for representing that the door body is opened, the controller controls the motor 001 to stop running.
It can be understood that when the door body is opened, the lock tongue needs to reach the pop-up position from the recovery position under the action of the elastic mechanism, and thus, when a user closes the door body, the lock tongue can be automatically locked. Therefore, when the door body is opened, the controller controls the motor 001 to stop running, so that the motor does not apply acting force to the bolt any more. Under the condition, the lock tongue pops out to the popping position under the action of the elastic mechanism, so that the safety of the lock body is ensured.
Specifically, the information for representing that the door body is opened may be detected by a door body detector that detects the position of the door body, or the information for representing that the door body is opened may be: the motor 001 has been operated at the second voltage for a second preset period of time.
Wherein, step S300 may specifically include:
the controller obtains the door position detected by the door detector, and when the door position is an opening position, the controller controls the motor 001 to stop running;
or, after obtaining the information that the motor 001 has continuously operated at the second voltage for the second preset time period, the controller controls the motor 001 to stop operating.
In general, a user can open the door immediately after the door lock is opened, so that the door lock can set a second preset time period, and when the motor 001 continuously operates for the second preset time period under the second voltage, the door body can be determined to be opened, and at this time, the controller of the invention can control the motor 001 to stop operating. Wherein the second preset time period may be a certain time period of 1 to 3 seconds.
According to the control method of the electric door lock provided by the embodiment of the invention, the controller can control the motor to operate under the first voltage after acquiring the unlocking instruction, and the controller can control the motor to operate under the second voltage lower than the first voltage after acquiring the information for representing the situation that the lock tongue is at the recovery position. When the motor operates under the second voltage, the torque of the motor output shaft is smaller, and further the thrust transmitted to the elastic mechanism is smaller, so that the spring can be prevented from being extruded by larger thrust, and the elasticity of the spring and the safety of the electric door lock are ensured.
The above are merely examples of the present invention, and are not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present invention.
Claims (11)
1. An electric door lock, comprising: the controller obtains information used for representing that the lock tongue is located at a recovery position, and then controls the motor to operate under a second voltage, wherein the first voltage is higher than the second voltage, and the motor operating under the second voltage provides thrust for the elastic mechanism, so that the lock tongue is kept at the recovery position under the action of the thrust.
2. The electric door lock of claim 1, wherein the information indicating that the latch bolt is in the recovery position is detected by a latch bolt detector for detecting the position of the latch bolt, or the information indicating that the latch bolt is in the recovery position is: the motor has been operated at a first voltage for a first preset period of time.
3. The electric door lock according to claim 1 or 2, wherein the controller controls the motor to stop operating when the controller obtains information indicating that the door body is opened.
4. The electric door lock according to claim 3, wherein the information indicating that the door is opened is detected by a door detector for detecting the position of the door, or the information indicating that the door is opened is: the motor has been operated at a second voltage for a second preset period of time.
5. The electric door lock according to claim 1 or 2, further comprising: the low-voltage power supply module is connected with the motor through the controller, the low-voltage power supply module supplies power to the motor, and the controller controls the working voltage of the motor through controlling the output voltage of the low-voltage power supply module.
6. The electric door lock of claim 1, further comprising: the motor passes through the power management module is connected with the power supply, and the reverse voltage protection module is connected in series between the power management module and the motor.
7. The electric door lock of claim 1, further comprising: the motor is in transmission connection with the lock tongue through the at least one straight gear,
when the output shaft of the motor rotates in a first direction, the output shaft of the motor drives the lock tongue to move in a second direction through the at least one straight gear so as to reach a recovery position; when the output shaft of the motor rotates in a third direction, the output shaft of the motor drives the lock tongue to move in a fourth direction through the at least one spur gear so as to reach an ejecting position, wherein the first direction is opposite to the third direction, and the second direction is opposite to the fourth direction.
8. A method for controlling an electric door lock, the electric door lock comprising: the spring bolt locking device comprises a motor, a spring bolt and a controller, wherein the mounting end of the spring bolt is connected with an elastic mechanism, the motor is in transmission connection with the spring bolt to drive the spring bolt to move, the controller is connected with the motor, and the method comprises the following steps:
after the controller obtains an unlocking instruction, the controller controls the motor to operate under a first voltage;
after the controller obtains the information for representing that the lock tongue is in the recovery position, the controller controls the motor to operate under a second voltage, wherein the first voltage is higher than the second voltage, and the motor operating under the second voltage brings thrust to the elastic mechanism, so that the lock tongue is kept in the recovery position under the action of the thrust.
9. The method of claim 8, wherein the controller, after obtaining the information indicative of the deadbolt being in the retracted position, controls the motor to operate at a second voltage comprising:
the controller obtains a lock tongue position detected by the lock tongue detector, and when the lock tongue position is a recovery position, the controller controls the motor to operate under a second voltage;
or after the controller obtains the information that the motor continuously operates at the first voltage for the first preset time period, the controller controls the motor to operate at the second voltage.
10. The method according to claim 8 or 9, characterized in that the method further comprises:
when the controller obtains information used for representing that the door body is opened, the controller controls the motor to stop running.
11. The method according to claim 10, wherein the controller controls the motor to stop operating when the controller obtains the information for indicating that the door body is opened, and the method comprises the following steps:
the controller obtains the door position detected by the door detector, and when the door position is an opening position, the controller controls the motor to stop running;
or after the controller obtains the information that the motor continuously operates for a second preset time period under the second voltage, the controller controls the motor to stop operating.
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| CN201810276400.3A CN110318586B (en) | 2018-03-30 | 2018-03-30 | Electric door lock and control method thereof |
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| CN201810276400.3A CN110318586B (en) | 2018-03-30 | 2018-03-30 | Electric door lock and control method thereof |
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| CN110318586A CN110318586A (en) | 2019-10-11 |
| CN110318586B true CN110318586B (en) | 2021-01-01 |
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| CN201810276400.3A Active CN110318586B (en) | 2018-03-30 | 2018-03-30 | Electric door lock and control method thereof |
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| CN111088910B (en) * | 2020-01-08 | 2023-06-27 | 王力安防科技股份有限公司 | Automatic switch lock and control method thereof |
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