CN112554657A - Magnetic clutch and contain its intelligent lock and door - Google Patents

Magnetic clutch and contain its intelligent lock and door Download PDF

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Publication number
CN112554657A
CN112554657A CN202011373013.5A CN202011373013A CN112554657A CN 112554657 A CN112554657 A CN 112554657A CN 202011373013 A CN202011373013 A CN 202011373013A CN 112554657 A CN112554657 A CN 112554657A
Authority
CN
China
Prior art keywords
magnet
clutch
magnetic
shell
pin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011373013.5A
Other languages
Chinese (zh)
Inventor
赵建平
肖骞
唐海龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Mingmen Locks Industry Co Ltd
Original Assignee
Guangdong Mingmen Locks Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Mingmen Locks Industry Co Ltd filed Critical Guangdong Mingmen Locks Industry Co Ltd
Priority to CN202011373013.5A priority Critical patent/CN112554657A/en
Publication of CN112554657A publication Critical patent/CN112554657A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • E05B15/0013—Followers; Bearings therefor
    • 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
    • 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
    • E05B2047/0026—Clutches, couplings or braking arrangements
    • E05B2047/0028—Clutches, couplings or braking arrangements using electromagnetic means

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  • Lock And Its Accessories (AREA)

Abstract

The invention discloses a magnetic clutch and an intelligent door lock and a door comprising the same, wherein the magnetic clutch comprises: the shell is columnar; the clutch mechanism comprises a driving motor, a magnet fixing seat, a first magnet, a second magnet, a clutch pin and a clutch connecting piece which are sequentially arranged in the shell along the axial direction, the driving motor, the magnet fixing seat and the first magnet are sequentially connected, the second magnet and the clutch pin are sequentially connected, the first magnet and the second magnet are both provided with a radial N magnetic pole and a radial S magnetic pole of the shell, the driving motor drives the opposite magnetic poles of the first magnet and the second magnet to be the same or opposite, and the driving clutch pin is connected with or separated from the clutch connecting piece; the magnetic shielding cover is made of magnetic conductivity materials and wraps the periphery of the shell regions of the first magnet and the second magnet. The invention solves the problem of misoperation of the magnetic clutch and improves the safety of the intelligent door lock.

Description

Magnetic clutch and contain its intelligent lock and door
Technical Field
The invention relates to the technical field of electronic locks, in particular to a magnetic clutch, an intelligent door lock comprising the same and an intelligent door.
Background
The intelligent door lock is a comprehensive product combining an electronic technology, an integrated circuit design, a large number of electronic components and various innovative identification technologies. The types of intelligent door locks include fingerprint locks, electronic coded locks, induction locks, intelligent locks, and the like. The intelligent door lock is mainly provided with an elastic clutch device and a magnetic clutch device, wherein the elastic clutch device uses elastic materials as coupling transmission parts, and is characterized in that the transmission mode is direct contact transmission, the parts are abraded due to movement, the service life of the clutch device is influenced to a certain extent, and the requirement on the assembly size precision of the parts is higher; the magnetic clutch device uses the magnet as a coupling transmission component and is characterized in that the rotation mode is non-contact transmission driven by the attraction force and the repulsion force of the magnet, and parts have no relative contact friction, so the service life of the clutch device is long, and the assembly size precision requirement of the parts is low. However, the magnetic clutch device is easily affected by external magnetic force, and misoperation is generated to unlock the lockset, so that the safety of the lockset is greatly reduced. At present, no better solution is available.
Disclosure of Invention
To solve the above problems, the present invention provides a magnetic clutch including:
the shell is columnar;
the clutch mechanism comprises a driving motor, a magnet fixing seat, a first magnet, a second magnet, a clutch pin and a clutch connecting piece, which are sequentially arranged in the shell along the axial direction, wherein the driving motor, the magnet fixing seat and the first magnet are sequentially connected, the second magnet and the clutch pin are sequentially connected, the first magnet and the second magnet are both provided with an N magnetic pole and an S magnetic pole in the radial direction of the shell, the magnetic poles opposite to the first magnet and the second magnet are driven to be the same through the driving motor, so that the clutch pin is driven to be jointed with the clutch connecting piece, and the magnetic poles opposite to the first magnet and the second magnet are driven to be opposite through the driving motor, so that the clutch pin is driven to be separated from the clutch connecting piece;
the magnetic shielding cover is made of magnetic conductivity materials and wraps the periphery of the shell regions of the first magnet and the second magnet.
Optionally, the magnetic shielding case is two arc plates and symmetrically arranged on the periphery of the housing.
Optionally, a limiting structure is arranged on the housing and the magnet fixing seat, so that the magnet fixing seat rotates by no more than 180 degrees.
Optionally, a track groove is provided in the housing, the clutch pin being mounted in the track groove, the track groove limiting rotation of the clutch pin.
Optionally, the clutch coupling has an oblong hole, and the clutch pin has an oblong projection for engaging and disengaging with the oblong hole.
Optionally, the magnetic shielding case is a cylinder with a closed end, the magnetic shielding case is sleeved on the periphery of the shell, an oval hole is formed in the closed end of the magnetic shielding case, and the oval protrusion penetrates through the oval hole when the clutch pin is engaged with and disengaged from the clutch connecting piece.
Optionally, the first magnet and the second magnet are ring-shaped.
The invention also provides an intelligent door lock which comprises the magnetic clutch, the clutch connecting piece is connected with the lock body, and the driving motor is connected with the handle.
The invention further provides a door, which comprises the intelligent door lock.
The invention has the following beneficial effects:
when the magnetic shielding cover is not arranged, the magnetic force of the external magnet can directly act on the magnet inside the magnetic clutch, so that the state of the internal magnet is changed to generate misoperation unlocking; after the magnetic shielding cover is arranged, the magnetic force of the outer magnet can be shielded by the magnetic shielding cover, so that the magnetic induction line of the outer magnet changes and cannot directly influence the inner magnet, the generation of misoperation of the magnetic clutch is eliminated, and the safety of the intelligent door lock is improved.
Drawings
The above features and technical advantages of the present invention will become more apparent and readily appreciated from the following description of the embodiments thereof taken in conjunction with the accompanying drawings.
FIG. 1 is an exploded view of a magnetic clutch employing one form of magnetic shield according to an embodiment of the present invention;
FIG. 2 is a schematic view showing a lower case of an embodiment of the present invention;
FIG. 3 is a schematic view of a ring magnet illustrating an embodiment of the present invention;
FIG. 4 is an exploded view of a magnetic clutch employing another form of magnetic shield in accordance with an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described below with reference to the accompanying drawings. Those of ordinary skill in the art will recognize that the described embodiments can be modified in various different ways, or combinations thereof, without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Furthermore, in the present description, the drawings are not to scale and like reference numerals refer to like parts.
The magnetic clutch of the embodiment comprises an upper shell 1, a lower shell 2, a clutch mechanism and a magnetic shielding case 8. The upper shell 1 and the lower shell 2 are buckled to form a shell. The casing is a cylindrical body, and a motor groove, a fixed seat groove and a track groove are sequentially arranged in the casing along the axial direction, and a lower casing motor groove 21, a lower casing fixed seat groove 22 and a lower casing track groove 23 are arranged in the lower casing 2 by taking the lower casing 2 as an example. Go up casing 1 and casing 2 connection fixed down, driving motor 3 installs in the motor groove, and the magnet fixing base is installed in the fixing base groove.
Clutch device includes that the axis along the casing sets gradually driving motor 3, magnet fixing base 4, N magnetic pole and S magnetic pole be with the first magnet 5 of the body, N magnetic pole and S magnetic pole be with the second magnet 10 of the body, separation and reunion round pin 6, separation and reunion connection piece 7 of the body, and wherein, driving motor 3, magnet fixing base 4, first magnet 5 connect gradually, and second magnet 10, separation and reunion round pin 6 connect gradually. Specifically, one end of the driving motor 3 is provided with a central shaft 31, and the central shaft 31 on the driving motor 3 is coaxially connected with the magnet fixing seat 4. A magnet fixing groove is formed in the magnet fixing seat 4, and the first magnet 5 is embedded in the magnet fixing groove.
Similarly, a magnet fixing groove is also provided in the clutch pin 6, and the second magnet 10 is fitted in the magnet fixing groove. The clutch pin 6 is mounted in a track groove of the housing, which limits the clutch pin 6 not to perform a circular rotation motion but to move only in an axial direction.
The driving motor can drive the magnet fixing seat 4 to rotate, and the relative magnetic poles of the first magnet 5 and the second magnet 10 are the same or opposite by rotating a certain angle, specifically, the N magnetic pole of the first magnet 5 is opposite to the N magnetic pole of the second magnet 10, or the N magnetic pole of the first magnet 5 is opposite to the S magnetic pole of the second magnet 10, and the relative magnetic poles of the first magnet 5 and the second magnet 10 are the same, so that the second magnet 10 is pushed to move along the axial direction, and the clutch pin 6 is driven to be engaged with the clutch connecting piece. The opposite magnetic poles of the first magnet 5 and the second magnet 10 are opposite to each other, so that the second magnet 10 is attracted to move along the axial direction, and the clutch pin 6 is driven to be separated from the clutch connecting piece.
The magnetic shielding cover 8 is arranged on the shell and made of magnetic conductivity materials, and the magnetic shielding cover wraps the periphery of the shell area of the first magnet and the second magnet.
The magnetic shielding case 8 may include two arc plates 81, and is symmetrically disposed at the periphery of the housing. The arc-shaped plate can be fixed on the shell in advance, or can be placed outside the shell when being installed on the door. The magnetic shielding case 8 may also be a cylinder with a closed end, the magnetic shielding case 8 is sleeved on the periphery of the housing, an elliptical hole 71 is formed in the closed end, and the clutch pin 6 penetrates through the elliptical hole 71 of the magnetic shielding case 8 when being engaged with and disengaged from the clutch connecting piece 7.
The shell is provided with a limiting boss (not shown), the magnet fixing seat 4 is also provided with a limiting boss, and the rotating angle of the magnet fixing seat 4 is limited by the limiting boss, so that the magnet fixing seat can only rotate forward and backward by not more than 180 degrees. Specifically, when the driving motor 3 drives the magnet fixing seat 4 to rotate until the limit boss contacts with one side of the limit boss of the housing, the N magnetic pole of the first magnet is opposite to the N magnetic pole of the second magnet 10, and under the action of the principle that like poles of the magnets repel each other, the second magnet 10 is pushed by magnetic force to drive the clutch pin to move towards the clutch connecting piece 7 along the axial direction, so as to be connected with the clutch connecting piece 7.
When the driving motor 3 drives the magnet fixing seat 4 to rotate reversely to the other side of the limiting boss of the shell, the N magnetic pole of the first magnet is opposite to the S magnetic pole of the second magnet 10, and under the action of the magnet heteropolar principle, the second magnet 10 is attracted by magnetic force to drive the clutch pin to move in the direction away from the clutch connecting piece 7 along the axial direction, so that the clutch pin is separated from the clutch connecting piece 7.
Further, the clutch connecting plate 7 has an oval hole 71 in the axial direction, and the clutch pin 6 has an oval projection 61 in the axial direction, and the oval projection 61 is adapted to engage with and disengage from the oval hole 71.
Further, the first magnet and the second magnet are provided with installation marks to prevent installation errors, and the marks are in the form of notches machined in the magnets.
The invention also provides an intelligent door lock which comprises the magnetic clutch, the clutch connecting piece is connected with the lock body, and the driving motor is connected with the handle.
When opening the door, under the lock shutting state, the user uses the fingerprint, password or other modes verify the success back, driving motor 3 drives magnet fixing base 4 clockwise rotation 180 degrees to the spacing boss one side position of casing, make the N magnetic pole of first magnet relative with the N magnetic pole of second magnet 10, under the effect of magnet homopolar repulsion principle, second magnet 10 is under magnetic force action to the direction removal that drives separation and reunion round pin 6 to separation and reunion connection piece 7, oval protruding 61 on the separation and reunion round pin 6 inserts in the oval hole 71 of separation and reunion connection piece 7, connect handle and lock body, the operation handle makes the lock body open, can realize the function of opening the door.
Handle kick-backs after opening the door, driving motor 3 drives 4 anticlockwise rotations of magnet fixing base 180 degrees to the spacing boss other side position of casing, make the N magnetic pole of first magnet relative with the S magnetic pole of second magnet 10, under the effect of magnet heteropolar attraction principle, second magnet 10 removes to the direction that drives separation and reunion round pin 6 to keeping away from separation and reunion connection piece 7 under magnetic force, oval protruding 61 on the separation and reunion round pin 6 leaves the oval hole 71 of separation and reunion connection piece 7, the connection of handle and lock body has been broken away, realize the idle running of handle.
When the intelligent door lock is acted by external magnetic force in a locking state, the clutch pin 6 can be engaged with the clutch connecting sheet 7 under the interference of external magnetic force, so that the handle can be operated to open the lock body, which is caused by the interference of external magnetic force. In the present invention, the magnetic shield 8 prevents the external magnetic force from interfering with the operation of the first and second magnets of the magnetic clutch.
The invention further provides a door, which comprises the intelligent door lock.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A magnetic clutch, comprising:
the shell is columnar;
the clutch mechanism comprises a driving motor, a magnet fixing seat, a first magnet, a second magnet, a clutch pin and a clutch connecting piece, which are sequentially arranged in the shell along the axial direction, wherein the driving motor, the magnet fixing seat and the first magnet are sequentially connected, the second magnet and the clutch pin are sequentially connected, the first magnet and the second magnet are both provided with an N magnetic pole and an S magnetic pole in the radial direction of the shell, the magnetic poles opposite to the first magnet and the second magnet are driven to be the same through the driving motor, so that the clutch pin is driven to be jointed with the clutch connecting piece, and the magnetic poles opposite to the first magnet and the second magnet are driven to be opposite through the driving motor, so that the clutch pin is driven to be separated from the clutch connecting piece;
the magnetic shielding cover is made of magnetic conductivity materials and wraps the periphery of the shell regions of the first magnet and the second magnet.
2. The magnetic clutch of claim 1, wherein the magnetic shield is a two-piece arc-shaped plate and is symmetrically disposed on the periphery of the housing.
3. Magnetic clutch according to claim 1,
and the shell and the magnet fixing seat are provided with limiting structures, so that the magnet fixing seat can rotate by no more than 180 degrees.
4. Magnetic clutch according to claim 1,
a track groove is formed in the shell, the clutch pin is installed in the track groove, and the track groove limits rotation of the clutch pin.
5. Magnetic clutch according to claim 1,
the clutch connecting piece is provided with an oval hole, the clutch pin is provided with an oval bulge, and the oval bulge is used for being connected with and separated from the oval hole.
6. The magnetic clutch according to claim 5, wherein the magnetic shield case is a cylinder having a closed end, the magnetic shield case is fitted around the outer periphery of the housing, and an elliptical hole is provided at the closed end thereof, and the elliptical protrusion passes through the elliptical hole when the clutch pin is engaged with and disengaged from the clutch connecting plate.
7. Magnetic clutch according to claim 1,
the first magnet and the second magnet are annular.
8. An intelligent door lock, characterized in that, includes the magnetic clutch of any one of claims 1 to 7, the separation and reunion connection piece is connected with the lock body, the actuating motor is connected with the handle.
9. A door comprising the intelligent door lock of claim 8.
CN202011373013.5A 2020-11-30 2020-11-30 Magnetic clutch and contain its intelligent lock and door Pending CN112554657A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011373013.5A CN112554657A (en) 2020-11-30 2020-11-30 Magnetic clutch and contain its intelligent lock and door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011373013.5A CN112554657A (en) 2020-11-30 2020-11-30 Magnetic clutch and contain its intelligent lock and door

Publications (1)

Publication Number Publication Date
CN112554657A true CN112554657A (en) 2021-03-26

Family

ID=75045315

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011373013.5A Pending CN112554657A (en) 2020-11-30 2020-11-30 Magnetic clutch and contain its intelligent lock and door

Country Status (1)

Country Link
CN (1) CN112554657A (en)

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