The apparatus and method of transmission data and electric energy between the cylinder of key and lock
The present invention relates between the cylinder of key and lock, transmit the apparatus and method of data and electric energy.
As everyone knows, there has been the lock of many types in the market, rotor, stator, two-bolt lock machinery and/or motor have been installed usually, and the key that is used to unblank (on-off).
Generally, exist to electrically contact in electromechanical locks, so that data and electric energy are transferred to the cylinder of lock from key, and vice versa.
Be readily appreciated that by the definition that provides above the use that electrically contacts how many problems can occur in the lock of motor type.
For example, if lock is installed in the contaminated environment, the existence that is deposited on key or the dust of locking, oxide, liquid, sliding agent or similar item does not allow to transmit energy and data by electrically contacting, and comprises all problems that may cause under these conditions.
Correspondingly, the lock for motor type obtains normal performance, the often cleaning that electrically contacts of locking all the time.
For guaranteeing to electrically contact conduction, above-mentioned definition causes the cleaning of frequent, expensive maintenance to keep electrically contacting.
For example, in having the building of many locks, this situation causes considerable problem.
The object of the invention is to eliminate the problems referred to above that exist in the well-known electromechanical locks.
About this purpose, an important goal of the present invention is to invent a kind of apparatus and method of transmitting data and electric energy between the cylinder of key and lock, and this transmission does not need the resistance contact.
Another target of the present invention is to invent a kind of apparatus and method, even exist dust, oxide, sliding agent and similar item also can transmit data and electric energy.
Another target of the present invention is to invent a kind of apparatus and method, and it allows to use lock in the environment of high pollution degree.
Another target of the present invention is to invent a kind of apparatus and method, and in fact it does not touch the maintenance of lock circuit, thereby is estimating to provide considerable saving aspect the maintenance cost.
Another object of the present invention is to provide a kind of apparatus and method, senior Electrical Transport is carried out in its permission between the cylinder of key and lock, and vice versa.
The target that the present invention is last but be not to be that least important target is to invent a kind of apparatus and method, it provides a kind of lock of a little maintenance cheaply that reliably, only needs.
Apparatus and method by transmission data and electric energy between the cylinder of key and lock achieve this end, and these and other objects, it is characterized in that: it comprises first electromagnetic circuit that links to each other with described key, and second electromagnetic circuit that links to each other with described cylinder, described first and second electromagnetic circuits are equipped with connected system, this system is used for interconnecting when described key is inserted described cylinder, to produce the 3rd electromagnetic circuit, the 3rd electromagnetic circuit is used for the electric energy of the elementary winding of described first circuit is transferred to the secondary windings of described second circuit at least.
And another object of the present invention is a kind of method of transmitting data and electric energy between the cylinder of key and lock, it is characterized in that: it comprises that the described key insertion that first electromagnetic circuit will be installed is equipped with in the described cylinder of second electromagnetic circuit; The 3rd electromagnetic circuit that startup is obtained by the coupling of described first and second circuit; By time dependent voltage being applied on described first electromagnetic circuit and with the password transmission of described key to described cylinder, this voltage has and the identical frequency band of described second electromagnetic circuit, and the turn ratio of the coil of its amplitude and described first and second electromagnetic circuits is proportional; Discern the password of described key, and the shutter that electric energy is sent to described lock is made its startup in the mode of magnetic flux.
According to the present invention, by the time between the cylinder of key and lock the apparatus and method of transmission data and electric energy preferred embodiment but be not to be the description of determinate embodiment, other characteristic and advantage of the present invention will be more obvious, it makes an explanation in the accompanying drawings in tell-tale but determinate absolutely not mode, wherein:
Fig. 1 is the phantom drawing according to key of the present invention;
Fig. 2 is the preceding vertical view according to key of the present invention;
Fig. 3 is the phantom drawing according to cylinder of the present invention;
Fig. 4 is the plan view according to first and second electromagnetic circuits of the present invention;
Fig. 5 is according to the cylinder of different embodiments of the invention and the phantom drawing of key;
Fig. 6 is the plan view according to first and second electromagnetic circuits of different embodiments of the invention; And
Fig. 7-9 demonstrates some function of the present invention roughly and uses.
By the above-mentioned accompanying drawing of detailed reference, be used between the cylinder 3 of key 1 and lock (not shown), transmitting the device of data and electric energy, comprise the first electromagnetic circuit A1 that links to each other with key 1, and the second electromagnetic circuit A2 that links to each other with cylinder 3.
The first and second electromagnetic circuit A1 and A2 comprise linkage, so that interconnect at the inside groove A3 that key 1 is inserted into cylinder 3, produce the 3rd electromagnetic circuit 4, the three electromagnetic circuits and be applicable to the secondary windings A7 that data and electric energy is transferred to second circuit from the elementary winding A6 of first circuit.
In brief, when first electromagnetic circuit and the coupling of second electromagnetic circuit, form a transformer, in this transformer, the energy that is added on the elementary winding A6 is transferred to secondary windings A7 with the form of magnetic flux, described magnetic flux is suitable for being sent in the circuit of ferromagnetic material, and perhaps preferred, this ferromagnetic material is produced by ferrite.
Preferably, ferritic use makes uses high-frequency to become possibility, so that obtain to be fit to the frequency band of transfer of data and high performance energy transmission.
Particularly, first and second electromagnetic circuits comprise interconnective first bar and second bar A4 and the A5 respectively.
Under situation about describing as embodiment, first bar and second bar are also twined by loop A 6 and A7.
Form the 3rd electromagnetic circuit 4 by forming intercoupling of the first and second closed circuit electromagnetic circuits.
Fig. 5 and 6 demonstrates the circuit arrangement according to different embodiments of the invention.
Loop A 11 to the first electromagnetic circuit A9 applies the voltage that changes in time, the described voltage and the second electromagnetic circuit A8 have identical or different frequency band, and amplitude is proportional to the turn ratio of elementary winding A11 and secondary windings A10, so that data transfer to cylinder 3 from key 1, and vice versa.
In brief, produce magnetic flux by the energy transmission of elementary winding A11 from the key to the cylinder, send in the ferromagnetic circuit by described magnetic flux being passed secondary windings A10, in described ferromagnetic circuit, induce electromotive force, can be the electronic circuit and the actuator power supply of cylinder interior.
As previously mentioned, transmit data by adopting electric power transfer theoretical method, thereby allow data to be transferred on the cylinder, and vice versa from key such as a kind of classics in frequency modulation(PFM), amplitude, PWM phase place or other method.
Data with numeral and/or analog in form transmission.
What should emphasize at last, is to adopt the suitable insulation lead to form circle.
And, an object of the present invention is a kind of method of between the standard cylinder of key and lock, transmitting data and electric energy, shown in Fig. 7 to 9.
Particularly, this method comprises that the key that will be equipped with the first electromagnetic circuit A1 inserts the cylinder that is equipped with the second electromagnetic circuit A2.
Subsequently, the coupling by first and second electromagnetic circuits starts the 3rd electromagnetic circuit 4.
By on first electromagnetic circuit, applying a voltage that changes in time key cipher is transferred to cylinder.Described voltage has identical or different frequency bands with second circuit, and its amplitude is proportional with the ratio of the coil turn of first and second electromagnetic circuits.
Discern key cipher this moment, and lock actuator to start with the necessary electric energy of the form transmission of magnetic flux.
When starting actuator, the energy of taking from secondary magnetic circuit coil also is necessary for relevant electronic circuit provides energy, so that the electron key password is decoded.
At last, even may insert key, circuit is closed in actuator rotation back.
Preferably, in the apparatus and method of transmission data and electric energy, the signal that is applied on the primary magnetic circuit coil provides energy and data for secondary magnetic circuit coil between the cylinder of key and lock.
In fact, shown that device according to the present invention electrically contacts mainly due to use and has superiority especially aspect the defective that produces eliminating electromagnetic lock.
Remain in the thought range of the present invention, according to the present invention of this conception of species many modifications and modification can be arranged, and all parts can be replaced by technical equivalent parts.
Say in fact, can be as required with the technology status of this area and change the raw material that adopted and the size of parts.