CN204303048U - A kind of Fingerprint Lock - Google Patents

Abstract

The utility model relates to a fingerprint lock, which relates to the technical field of electronic locks. The main purpose is to provide a fingerprint lock which does not require a separate power supply and does not depend on an external power supply for unlocking. The technical solution mainly adopted is: a fingerprint lock, including: an electromagnetic induction device, a power device and a fingerprint identification device. The power unit is connected with the coil or magnet of the electromagnetic induction device, and is used to drive the coil or magnet of the electromagnetic induction device to move, so that the coil of the electromagnetic induction device generates an induced electromotive force; the fingerprint recognition device is connected in series with the coil of the electromagnetic induction device, and is connected with the coil form a closed loop. The utility model is mainly used for realizing passive fingerprint unlocking and ensuring safety and convenience for users.

Description

a fingerprint lock

technical field

The utility model relates to the technical field of electronic locks, in particular to a fingerprint lock.

Background technique

Fingerprint lock is a kind of smart lock that is based on human fingerprints and can be unlocked by matching human fingerprints. Fingerprints are unique, non-replicable, hereditary and invariant, and are unique to each person. Therefore, for a long time, Fingerprints are widely used in the technical field of locks as identification features.

Existing fingerprint locks are mainly composed of fingerprint collection devices, central processing circuits, signal input and output devices, and lock actuators. They all need to install special power supplies to provide power for each part of the work. In order to ensure the needs of use, the power supply needs to be installed in the In the fingerprint lock, and for the safety of use, the power supply needs to be installed in a position that is not easy to open inside the fingerprint lock.

The inventors have found that at least the following problems exist in the above-mentioned fingerprint lock: it is cumbersome to replace the power supply, which causes inconvenience to use; moreover, if the fingerprint lock is not used for a long time, the power in the power supply will gradually decrease. After a period of time, the power may be insufficient, resulting in fingerprints. The lock cannot be used, and the lockset cannot be opened, causing great inconvenience to the user; in addition, when the power supply is insufficient, it is often impossible to find out and replace it in time, which may cause the power supply to be damaged in the lock body, resulting in damage to other parts in the lock body. damage.

Utility model content

In view of this, the utility model provides a fingerprint lock, the main purpose of which is to provide a fingerprint lock that does not require a separate power supply and does not depend on an external power supply for unlocking.

In order to achieve the above object, the utility model mainly provides the following technical solutions:

The embodiment of the utility model provides a fingerprint lock, the fingerprint lock includes:

electromagnetic induction device,

The power device is connected with the coil or the magnet of the electromagnetic induction device, and is used to make the coil of the electromagnetic induction device generate an induced electromotive force;

The fingerprint identification device is connected in series with the coil of the electromagnetic induction device and forms a closed loop with the coil.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

The aforementioned fingerprint lock further includes a lock tongue whose movement is controlled by the fingerprint identification device, and the lock tongue is electrically connected to the fingerprint identification device.

The aforementioned fingerprint lock also includes a lock hole matched with the lock tongue.

For the aforementioned fingerprint lock, the power device includes:

A rotating part that can rotate around at least one plane, the rotating part is used to drive the coil to rotate to cut the magnetic field lines of the magnet, or the rotating part is used to drive the magnet to rotate so that the coil cuts the The lines of force of the magnet;

a handle, the handle is connected with the rotating part and is used to drive the rotating part to rotate.

In the aforementioned fingerprint lock, the magnets are two semi-annular magnets placed opposite to each other with a gap, and the coil is arranged in the cavity formed by the two semi-annular magnets placed opposite to each other.

In the aforementioned fingerprint lock, the coil is a set of windings or at least two sets of windings connected in series.

In the aforementioned fingerprint lock, the at least two groups of windings are evenly arranged in the cavity formed by the half-ring magnet.

For the aforementioned fingerprint lock, the fingerprint recognition device is an optical technology fingerprint recognition device, a silicon technology fingerprint recognition device or an ultrasonic technology fingerprint recognition device.

For the aforementioned fingerprint lock, the fingerprint identification device includes:

The reading identification part is used to read the fingerprint image, extract features, save data and compare, and give the identification result;

The control switch is electrically connected to the reading identification part and the lock tongue respectively, and is used to drive the lock tongue to move according to the identification result of the reading identification part when the identification results are consistent;

The storage battery is respectively connected to the coil, the reading identification part and the control switch, and is used to store the electric energy generated by the coil and provide electric energy to the reading identification part and the control switch.

The aforementioned fingerprint lock, the fingerprint identification device also includes:

An error alarm device is electrically connected to the reading identification part, and is used to send an error alarm signal when the identification results of the reading identification part are inconsistent;

The damage alarm device is connected with the shell of the fingerprint lock, and is used for sending a damage alarm signal when the shell of the fingerprint lock is damaged.

By virtue of the above technical solution, a fingerprint lock provided by the utility model has at least the following advantages:

The fingerprint lock provided by the utility model makes the coil of the electromagnetic induction device generate an induced electromotive force through the power device, thereby providing power for the fingerprint identification device, etc., avoiding the disadvantages of the prior art fingerprint lock depending on the external power supply, and realizing the wireless lock. Source unlocking; the fingerprint lock of the utility model only needs to manually start the power device to realize power supply, complete fingerprint identification and unlocking, and at the same time avoid the problems caused by replacement or damage of the power supply, which brings great inconvenience to the user. convenient.

The above description is only an overview of the technical solution of the utility model. In order to understand the technical means of the utility model more clearly and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with accompanying drawings. back.

Description of drawings

Fig. 1 is a schematic structural diagram of a fingerprint lock provided by an embodiment of the present invention;

Fig. 2 is a schematic structural view of a fingerprint lock provided by another embodiment of the present invention;

Fig. 3 is a schematic diagram of an embodiment of the utility model.

Detailed ways

In order to further explain the technical means and effects of the utility model to achieve the intended purpose of the utility model, the specific implementation, structure, features and effects of the utility model application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. The description is as follows. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

As shown in FIG. 1 and FIG. 2 , an embodiment of the present invention proposes a fingerprint lock, which includes: an electromagnetic induction device 2 , a power device 1 , and a fingerprint identification device 3 . The power unit 1 is used to drive the coil 22 or the magnet 21 of the electromagnetic induction device 2 to move, so that the coil 2 of the electromagnetic induction device produces an induced electromotive force (shown in Fig. 1 and Fig. 2 is the coil 22 of the power unit and the electromagnetic induction device 2 The power unit 1 drives the coil 22 to rotate in the direction of cutting the magnetic field line of the magnet, so that the coil 22 generates an induced electromotive force. Similarly, the power unit can also be connected with the magnet to make the magnet rotate relative to the coil, so that the coil generates a magnetically induced electromotive force. ). The fingerprint identification device 5 is connected in series with the coil 2 of the electromagnetic induction device, and forms a closed loop with the coil 22 .

The fingerprint lock provided by this embodiment can be applied to doors, safes, and electronic equipment. When unlocking, only people need to operate the power device by hand, and the power device will cause current to be generated in the induction coil 2, thereby providing electrical energy to the fingerprint identification device 3. To drive the fingerprint identification device 5 to carry out fingerprint identification, realize passive unlocking, and avoid various problems caused by the built-in traditional power supply. The fingerprint lock provided by this embodiment is energy-saving, green, healthy, environmentally friendly, and pollution-free.

Preferably, another embodiment of the present utility model provides a fingerprint lock. Compared with the above-mentioned embodiment, the fingerprint lock of this embodiment also includes a lock tongue 4 whose movement is controlled by a fingerprint identification device 3, and the lock tongue and The fingerprint identification device 3 is electrically connected. The movement of the deadbolt is controlled by the fingerprint recognition device 3. If the fingerprint of the input fingerprint recognition device 3 matches the set fingerprint, the movement of the dead bolt is controlled to open the fingerprint lock. If the current fingerprint matches the fingerprint in the fingerprint storehouse of the fingerprint recognition device 3 When they do not match, the bolt movement operation will not be carried out, and the fingerprint lock will not be opened.

The fingerprint recognition device 3 drives the dead bolt 4 to move through the following steps: the fingerprint lock is provided with a pull switch (the pull switch is an electric induction clutch switch) and a movable mechanism connecting piece; One end of the mechanism connecting piece, the other end of the movable mechanism connecting piece is connected with the dead bolt by a movable pull pin. When the fingerprint identification device detects that the fingerprint to be tested matches the fingerprint in the fingerprint library, it will send an electrical signal to the pull switch, and the pull switch will then make the movable mechanism connecting piece drive the deadbolt to move, thereby realizing unlocking.

Preferably, the fingerprint lock of this embodiment further includes a lock hole matched with the lock tongue. The lock hole cooperates with the dead bolt of the fingerprint lock to realize the function of opening or closing the fingerprint lock. When the fingerprint lock of this embodiment is in use, the lock hole and the dead bolt are respectively arranged on two relative positions that need to be locked (such as the lock hole is arranged on the door frame, and the dead bolt is arranged on the door corresponding to the lock hole). at the location).

Preferably, another embodiment of the present invention provides a fingerprint lock. Compared with the above embodiments, the power device of this embodiment includes a rotating part 11 and a handle 12 . The rotating part 11 is a rotating part 11 that can rotate around at least one plane. The rotating part 12 is used to drive the coil 22 to rotate to cut the magnetic force lines of the magnet 21, or the rotating part 11 is used to drive the magnet 21 to rotate so that the coil 22 cuts the magnet 21 The magnetic lines of force; the handle 12 is connected with the rotating part 11 for driving the rotating part 11 to rotate.

When in use, turn the handle 12, and the handle will drive the rotating part 11 to rotate, so that the electromagnetic induction device 2 will cut the magnetic field line, so that the induced current and induced electromotive force will be generated in the coil 22, and the power supply will be provided for the fingerprint identification device 3. At this time, use The person puts the fingerprint to be identified in the fingerprint reading position of the fingerprint identification device 3, and the fingerprint identification device 3 identifies the fingerprint, and detects whether the identified fingerprint is consistent with the fingerprint stored in the fingerprint identification device 3; The lock tongue moves to open the fingerprint lock; if it is inconsistent, the movement of the lock tongue will not be controlled.

Therefore, the fingerprint lock provided by this embodiment does not need to install an external power supply inside the fingerprint lock, and there is no need to worry about problems such as poor fingerprint recognition stability caused by insufficient power supply, or leakage of electrolyte in the power supply, and there is no need to worry about serious power consumption when it is not used for a long time As a result, the fingerprint lock cannot be opened.

Preferably, another embodiment of the utility model provides a fingerprint lock. Compared with the above embodiment, the magnet 21 of the electromagnetic induction device 2 in this embodiment is two half-ring magnets placed opposite each other with a gap, and the coil 22 is arranged in the cavity formed by two semi-annular magnets placed oppositely.

In this embodiment, such setting can make the current induced in the coil 22 large enough to ensure the normal use of the fingerprint identification device 3 .

Preferably, another embodiment of the present invention provides a fingerprint lock. Compared with the above embodiment, the coil 22 is a set of windings or at least two sets of windings connected in series. When the coil 22 has two or more sets of windings, at least two sets of windings are evenly arranged in the cavity formed by the half-ring magnet.

In this embodiment, by setting multiple sets of windings, the induced current generated by the coil 22 is larger, which can more effectively ensure the normal and stable operation of the fingerprint identification device 5 .

Preferably, another embodiment of the present invention provides a fingerprint lock. Compared with the above embodiment, the fingerprint recognition device 5 is an optical technology fingerprint recognition device 5, a silicon technology fingerprint recognition device 5 or an ultrasonic technology fingerprint recognition device 5 Wait for everything that can be used as a fingerprint recognition device. That is, the fingerprint lock of the present utility model has no special requirements on the type of the fingerprint recognition device 5, and all devices that can realize fingerprint recognition can be used in the present utility model.

Preferably, another embodiment of the present invention provides a fingerprint lock. Compared with the above embodiments, the fingerprint identification device of this embodiment includes: a reading identification part, a battery and a control switch. Wherein, the reading and identifying part is used for reading the fingerprint image, extracting features, saving data and comparing, and giving the identification result. The control switch is respectively connected with the reading identification part and the lock tongue 4, and is used to drive the lock tongue to move according to the identification result of the reading identification part when the identification results are consistent. The storage battery is connected with the coil 22, the reading identification part and the control switch, and is used for storing the electric energy generated by the coil 22, and providing electric energy for the reading identification part and the control switch.

In the fingerprint lock provided in this embodiment, the fingerprint identification device 3 provides power for the storage battery through the current sensed by the coil 22, and controls the movement of the bolt through the control switch to realize passive unlocking. At the same time, when needed, the battery can also store electricity through the power device for next use.

On the basis of the above embodiments, as shown in FIG. 3 , in the fingerprint lock provided by this embodiment, the fingerprint identification device 3 further includes: an error alarm device 31 and a damage alarm device 32 . Wherein, the error alarm device 31 is electrically connected with the reading identification part 33, and is used to send an error alarm signal when the identification results of the reading identification part 33 are inconsistent; When the shell of the device is damaged, a damage alarm signal will be issued.

The installation of the error alarm device and the damage alarm device can more effectively guarantee the safety of the fingerprint lock. Once a fingerprint error occurs, the error alarm device will send out an error alarm signal and record the wrong fingerprint for inquiry. The damage alarm device will send out a damage alarm signal when the fingerprint lock is damaged externally, such as disassembly, etc. It should be pointed out that the damage alarm device needs the power supply provided by the battery. An independent power supply is installed for the damage alarm device, so that it forms an independent circuit with the damage alarm device. The independent circuit is connected when the fingerprint lock is damaged, and provides power for the damage alarm device. The wireless terminal or the nearby police station, property, etc., to ensure the safety of users.

In summary, the fingerprint lock provided by the utility model uses the unlocking rotation force (if the fingerprint lock is installed on the door, then utilizes the rotation force of opening the door) as the power source for the electromagnetic induction device to cut the magnetic induction line, and then generates electric energy as a fingerprint The power supply of the identification device 3 realizes passive fingerprint unlocking, and the fingerprint identification device 3 is used in conjunction with the deadbolt, lockhole, etc. to perform feature matching on the unlocking fingerprint to ensure the stability of the fingerprint lock.

If the fingerprint lock of the present utility model is applied on the door, the reading of the fingerprint reading identification part of the fingerprint identification device 3 can be arranged on the front panel of the left end of the door handle, and when the door handle is turned, the thumb is just in place at the left end of the door handle The front panel of the front panel can be unlocked with one hand, avoiding the mistake of turning the door handle with one hand and pressing the fingerprint reading and identification part with the other hand for fingerprint identification, making the door opening action easier.

In addition, the error alarm device and damage alarm device provided in the fingerprint lock in the embodiment of the utility model can further ensure the safety of the user. Once an error or damage occurs, the user can immediately receive an alarm message and make a judgment. It can also provide the user with a visitor indication, that is, the error alarm device can match the wrong fingerprint of this time with the wrong fingerprint stored inside it. Or use the notification multiple times, the user can determine whether it is a friend's visit in turn, so that the user can perform further processing.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model are all valid. Still belong to the scope of the technical solution of the utility model.

Claims (10)

1. a Fingerprint Lock, is characterized in that, described Fingerprint Lock comprises:

Electromagnetic induction device;

Power set, are connected with the coil of described electromagnetic induction device or magnet, for driving coil or the magnet movement of described electromagnetic induction device, produce induced electromotive force to make the coil of described electromagnetic induction device;

Fingerprint identification device, is connected on the coil of described electromagnetic induction device, forms closed-loop path with described coil.

2. Fingerprint Lock according to claim 1, is characterized in that, described Fingerprint Lock also comprises the dead bolt being controlled its motion by described fingerprint identification device, and described dead bolt is electrically connected with described fingerprint identification device.

3. Fingerprint Lock according to claim 2, is characterized in that, described Fingerprint Lock also comprises the lockhole matched with described dead bolt.

4. Fingerprint Lock according to claim 1, is characterized in that, described power set comprise:

Can around the rotating part of at least one Plane Rotation, described rotating part is connected with described coil or described magnet, described rotating part rotates for driving described coil, to cut the magnetic line of force of described magnet, or described rotating part is for driving described magnet rotors, with the magnetic line of force making described coil cut described magnet;

Handle, described handle is connected with rotating part, rotates for driven rotary portion.

5. Fingerprint Lock according to claim 1, is characterized in that, described magnet be two staggered relatively and there is the half-ring-shaped magnets in gap, described coil is arranged in the cavity that described two half-ring-shaped magnets staggered relatively are formed.

6. Fingerprint Lock according to claim 5, is characterized in that, at least two group windings that described coil is one group of winding or is cascaded.

7. Fingerprint Lock according to claim 6, is characterized in that, described at least two group windings are evenly arranged in the cavity of described half-ring-shaped magnets formation.

8. Fingerprint Lock according to claim 1, is characterized in that, described fingerprint identification device is optical technology fingerprint identification device, silicon technology fingerprint identification device or ultrasonic technology fingerprint identification device.

9. Fingerprint Lock according to claim 2, is characterized in that, described fingerprint identification device comprises:

Read Identification Division, in order to read fingerprint image, extract feature, to preserve data and comparison, and provide identification result;

Gauge tap, is electrically connected with described reading Identification Division, described dead bolt respectively, for according to the identification result reading Identification Division, when identification result is consistent, drives dead bolt to move;

Battery, is connected with described coil, described reading Identification Division, gauge tap respectively, for storing the electric energy that described coil produces, and provides electric energy to described reading Identification Division, gauge tap.

10. Fingerprint Lock according to claim 9, is characterized in that, described fingerprint identification device also comprises:

False alarm device, is electrically connected with described reading Identification Division, for when the identification result reading Identification Division is inconsistent, sends error alarm signal;

Destroy warning device, be connected with the shell of described Fingerprint Lock, for when the shell of described Fingerprint Lock is destroyed, send destruction alarm signal.