CN2527643Y

CN2527643Y - Electronic lock device

Info

Publication number: CN2527643Y
Application number: CN 00248956
Authority: CN
Inventors: 姚哲
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-19
Filing date: 2000-08-19
Publication date: 2002-12-25
Anticipated expiration: 2010-08-19

Abstract

The utility model relates to an electronic lock core, which is used in the lock bodies or the lock heads of various locking tools so as to make the locking tools safer. The utility model is characterized in that a circuit of a mcu microchip (CPU) , a micro -electromagnet and a lock-pin that is driven by the electromagnet are arranged inside a cylindrical lock core; the CPU can identify the identification codes inside a TM chip arranged on a key by means of a circuit that is communicated with the outside; the CPU can compare the identification codes with the key codes stored inside the CPU; if consistent codes exist, the CPU will control the electromagnet to drive the lock-pin, and then the lock core can rotate inside the lock. The CPU can also record the codes on the key in special conditions so that the owner of the locking tool can replace and add keys.

Description

Electronic lock cylinder

The utility model relates to a kind of lock core of electronic lock, is used in the lock body or tapered end of various locksets.

The prior mechanical cylinder lock, theftproof performance is poor, and a lot of people have the skill of prying open lock by keyhole in the society, and cylinder lock performs practically no function in face of them.The electronic lock structure complexity of intelligence such as electronic password lock, IC card lock, magnetic card lock, power consumption is big, can not open when not having electricity, can only be used for fixedly lockset such as door lock and safety cabinet, can not use and padlock playgrounds such as bicycle lock.Also just can not satisfy and only be with one piece of key, open the hope of a guy of institute lockset.

The utility model purpose is exactly a kind of little electronic lock cylinder of no keyhole, safety, power consumption that can be used for various locksets such as door lock, padlock, bicycle lock, lock for motorcycle, automotive lock of design.

The utility model is achieved in that this utility model is exactly the lock pin that single-chip microcomputer microchip (CPU) circuit and minitype electromagnet and electromagnet drive to be installed in that columniform lock core is inner.CPU identifies recognition coding on the key the TM chip by the lead with the lock core external communications, and the key code content of CPU storage inside relatively has consistently, just controls electromagnet and drives lock pin, and lock core just can rotate in lock body.CPU also can be under given conditions, and independently record coding on the key reaches the lockset owner and can independently change key.(annotate: TM is the abbreviation of U.S. DALLAS company contact memory.This memory inside can be stored 64 globally unique read-only type recognition codings, can forever preserve, and can not change and lose, and is widely used in person identification (ID) industry with its tight security and convenience.) the design is installed in TM in the key, its 64 bit-encoded information is read by CPU when contacting with the cpu circuit of lock core.

Because cpu circuit and electromagnet all are installed in lock core inside, electromagnet only drives lock pin, little power consumption.Can be used for padlock by micro cell power supply on the key.Key only contacts with plug face, no keyhole, and pick-proof lock, safer.

Below in conjunction with embodiment and accompanying drawing thereof the utility model is further specified.

Fig. 1 is the axial section of lock core.

Fig. 2 is the cpu control circuit schematic diagram.

1. lock cores, 2. elongate slots, 3. hard contacts, 4. tapered ends 5. plectrum 6.CPU circuit 7. electromagnet 8. armature components 9. lock pins 10. through holes of unblanking among the figure

Fig. 1 is the axial section of lock core.Lock cylinder (1) is embedded in tapered end (4) inside, and lock core when key is correct (1) can be in the inner rotation of tapered end (4).Lock core (1) inner hollow is equipped with cpu control circuit (6) and electromagnet (7).The outside end face of lock core has an elongate slots (2), and three hard contacts (3) are arranged in the groove, and hard contact (3) leads to inner cpu control circuit (6) by lead, and control element directly connects electromagnet (7) on the circuit.On lock core wall and the tapered end a relative through hole (10) is arranged, a cylindrical lock pin (9) is arranged in the through hole (10), the pellet shot from a slingshot of the similar common spring lock of lock pin (9), lock pin (9) top is connected in electromagnet armature assembly (8).Usual armature component (8) and lock pin (9) are in illustrated position, and lock core (1) can not rotate in tapered end (4); When unblanking, the TM chip key is inserted in the lock core outer end elongate slots (2), hard contact (3) in the TM chip contacts in the groove on the key, and coded message is just passed to CPU in the TM chip.Key is identified as when legal by cpu circuit, CPU control electromagnet (7) energising, armature component (8) and lock pin (9) arrow direction in figure, lock pin (9) is extracted out in the hole (10) of tapered end (4), lock core (1) just can rotate in tapered end (4), and unlocking person continues screw key, drives lock core (1) by elongate slots (2) and rotates, lock core (1) drives the plectrum (5) of unblanking and rotates, and lock just can equally have been opened to common lock.

Fig. 2 is the cpu control circuit schematic diagram.U1 is CPU, the AT90S2343 chip that adopts atmel corp to produce, the little encapsulation of 8 hem facing sheets.Inner integrated program memory, data storage EEPROM, clock oscillator, electrify restoration circuit.P1, P2, P3 are three hard contacts (3) that key contacts with lock core in this circuit, and the circuit on their left sides is the lock body internal circuit, and the right is the key internal circuit, and battery pack B1, B2 can only select one group.Integrated circuit DS2401 is the contact memory TM of DALLAS company in the key, in globally unique recognition coding is arranged.The both positive and negative polarity of B1 or B2 connects 8 pin VCC and the 4 pin GND of U1.6 pin of U1 connect the P2 of one of hard contact (3), and are connected with pull-up resistor R1, are used for reading the TM coding.5 pin of U1 are by the b utmost point of R11 connection Q1, and the e of Q1, the c utmost point connect VCC and DCXT (7) respectively.Insert the elongate slots (2) of the outside end face of lock core when key, during TM contacting metal contact (3), recognition coding in the DS2401 is read by CPU by single data wire DATA, with the legal key encoding ratio of the inner EEPROM storage of CPU, as judge that this key is legal, the triode Q1 drive magnet DCXT (7) of CPU by being connected with pin 5, lock core just can rotate, and lock just can have been opened.S1 is a contact, and when S1 was closed, CPU advanced inner EEPROM with the code storage in the key.Like this under the situation that lock is opened, the individual can closed S1, thereby adds key voluntarily.EEPROM can store 16 pieces of key code information altogether, and outage can not lost.

Claims

1. an electronic lock cylinder is installed in the lock body, transfers lock is opened in the lock body inward turning, it is characterized in that being equipped with in lock cylinder inside the lock pin (9) of a single-chip microcomputer microchip (CPU) circuit (6) and a minitype electromagnet (7) and electromagnet drive.

2. electronic lock cylinder according to claim 1 is characterized in that there is the circuit contact (3) that is communicated with interior cpu circuit by lead the lock core outside.

3. electronic lock cylinder according to claim 1 is characterized in that the digital storage of storing key code information is arranged in the cpu circuit in the lock core.