TWM536263U - Electronic door lock - Google Patents

Description

Electronic door lock

The invention relates to a door lock, in particular to an internal built-in alkaline battery. When the power consumption of the alkaline battery is insufficient to drive the electronic lock, the external DC power source can be electrically connected to the built-in alkaline battery directly. The electronic door lock for charging has the advantage of extending the life of the built-in alkaline battery and meeting environmental goals.

In order to ensure the safety of home life, protect the privacy of individuals and the tranquility of private space, almost all households or indoor space access doors are equipped with door leaves, and the door lock is the key device to determine whether the door can open and close.

Since locks and keys have been created in human history, locks and keys have been maintained in all mechanical designs; electronic door locks combined with cryptography, biometrics and non-contact sensing technology have been developed due to advances in electronic technology and security technology. Completed, due to the emergence of electronic door locks, users no longer need to carry heavy metal keys, bringing great convenience to the lives of modern people.

Electricity is one of the necessary conditions for maintaining the normal operation of electronic door locks. The power sources of electronic door locks can be mainly divided into two types, one of which is mains and the other is battery; the electronic door lock using the mains is equipped with Electrically connected to the mains wire or cable, after the electronic door lock is installed, it needs to be electrically connected to the mains source through the wire to operate normally; the electronic door lock using the battery as the power source is generally a built-in disposable battery. Alkaline batteries to achieve longer usage times.

In order to avoid the failure to use the electronic door lock due to the interruption of the power supply, such as sudden power failure of the mains, or the power consumption of the built-in disposable battery, the electronic door lock is usually designed with an emergency power supply, due to the activation of the electronic door lock and The operation of the lock cylinder requires a large starting power. The emergency power supply for most electronic door locks uses a commercially available 9V battery (rounded rectangular shape) as an emergency power source. However, for users who are remote, it may not be possible to purchase such a 9V battery as a source of emergency power in a short period of time.

On the other hand, for electronic door lock users who use the built-in battery as a power source, the general electronic door locks are designed with a low battery warning function to remind the user to replace the built-in battery before the internal battery power is exhausted. The price of alkaline batteries sold is higher than that of traditional carbon-zinc batteries. Although alkaline batteries are called disposable batteries, they can still recover part of the power through proper charging mechanism to extend their service life. However, it is known to use built-in battery design. The electronic door locks do not provide any mechanism for charging the built-in battery. Once the power of the built-in battery is weak, it needs to be replaced, which is a waste for the user and does not meet the environmental protection goal.

The technical problem to be solved by the present invention is to provide a built-in alkaline battery, which can be electrically connected to an external alkaline battery in the case where the power consumption of the alkaline battery is insufficient to drive the electronic lock operation. Directly charging electronic door locks have the advantage of extending the life of the built-in alkaline battery and meeting environmental goals.

In order to solve the above technical problem, an embodiment of the electronic door lock of the present invention comprises: a control circuit, a driving mechanism, an alkaline battery built in the interior of the electronic door lock, and an external power socket, the driving mechanism including a lock cylinder and a driving mechanism A cylinder-operated motor in which an alkaline battery and a control circuit are directly connected in parallel with an external power outlet through an external circuit; in the built-in alkaline battery When the power consumption is not enough to drive the electronic lock operation, the external DC power supply can be electrically connected through the external power socket to directly charge the built-in alkaline battery, and the power required for the operation of the electronic lock can be supplied to ensure the electronic The operation of the lock will not be interrupted. The invention can extend the service life of the built-in alkaline battery and has the advantages of environmental protection.

In an embodiment of the novel electronic door lock, wherein the control circuit includes a low battery detection and warning circuit that can alert the user to charge the alkaline battery before the power of the built-in alkaline battery is about to be exhausted.

In an embodiment of the electronic door lock of the present invention, the control circuit has a security control mechanism for unlocking and locking, and the security control mechanism includes but is not limited to: a biometric security control mechanism (such as fingerprint identification and face recognition). One or a combination thereof, a cryptographic security control mechanism, and an inductive security control mechanism.

In an embodiment of the novel electronic door lock, the external power socket includes any one of a DC power socket (DC Jack), a USB socket, and a micro USB socket.

Further, in an embodiment of the novel electronic door lock, which comprises an external DC power supply, a DC power supply that is slightly lower than the rated voltage of the alkaline battery is supplied to the alkaline circuit through an external circuit electrically connected directly to the alkaline battery. Charging batteries.

The specific embodiments and other advantages and effects of the present invention will be described below in conjunction with the drawings.

10‧‧‧Control circuit

11‧‧‧Low battery detection and warning circuit

12‧‧‧Digital and function buttons

13‧‧‧Finger Scanner

14‧‧‧Digital camera

15‧‧‧Sensor antenna

20‧‧‧ drive mechanism

21‧‧‧Lock core

22‧‧‧Motor

30‧‧‧Alkaline battery

31‧‧‧ External circuit

40‧‧‧External power outlet

50‧‧‧ cover

60‧‧‧External DC power supply

Figure 1 is a functional block diagram of one embodiment of the novel electronic door lock.

2 is a schematic structural view of an embodiment of the electronic door lock of the present invention, showing the electronic door lock in the room The inner structure.

Fig. 3 is a rear view of the structure of Fig. 2 showing the structure of the electronic door lock on the outdoor side.

Figure 4 is a functional block diagram of another embodiment of the novel electronic door lock.

Referring first to Figure 1, a functional block diagram of one embodiment of the novel electronic door lock is shown. An embodiment of the novel electronic door lock comprises: a control circuit 10, a drive mechanism 20, an alkaline battery 30 built into the interior of the electronic door lock, and an external power socket 40, the drive mechanism 20 including a lock cylinder 21 and a drive lock The motor 22 in which the core 21 operates, wherein the alkaline battery 30 and the control circuit 10 are directly connected in parallel with the external power outlet 40 through an external circuit 31 (which may be a wire or a printed circuit). In the case where the power consumption of the built-in alkaline battery 30 is insufficient to drive the operation of the electronic lock, the external DC power source can be electrically connected through the external power socket 40 to directly charge the built-in alkaline battery 30, and can be supplied at the same time. The power required to operate the electronic lock ensures that the operation of the electronic lock is not interrupted. The novel can extend the service life of the built-in alkaline battery 30 and has the advantages of environmental protection.

In an embodiment of the electronic door lock of the present invention, the control circuit 10 includes a low-power detection and warning circuit 11 that can transmit any one or a combination of sounds and optical signals before the power of the built-in alkaline battery 30 is exhausted. The warning signal reminds the user to charge the alkaline battery 30. When the alkaline battery 30 is charged multiple times, and the reminding action of the low battery detecting and warning circuit 11 is frequent, it means that the life of the built-in alkaline battery 30 is about to end, and the new alkaline battery 30 needs to be replaced at this time. Reduce the frequency of replacement of alkaline battery 30, extend its service life, and meet environmental protection goals.

In an embodiment of the present electronic door lock, the external power socket 40 includes: a DC power socket (DC Jack), a USB socket, and a micro USB socket; Preferably, the external power socket 40 is disposed on the indoor side of the electronic door lock (the side facing the room); in other embodiments, the external power socket 40 may be disposed on the indoor side and the outdoor side of the electronic door lock (on the side outside the door) Either one or both of them are disposed on the indoor side and the outdoor side. Preferably, the electronic door lock is provided with a movable cover 50 for concealing the external power socket 40 at ordinary times, and only opening the cover 50 when in use. The external power outlet 40 is exposed. The emergency power supply system, like the general electronic door lock, is installed on the outdoor side, and is usually concealed by the cover.

When the power of the built-in alkaline battery 30 is about to be exhausted, the user can plug the DC output plug of the AC/DC power converter into the present invention using, for example, but not limited to, an AC/DC convertor. The external power socket 40 of the electronic door lock is used for directly charging the built-in alkaline battery 30, preferably by directly connecting the DC power source slightly lower than the rated voltage of the alkaline battery 30 to the alkaline battery 30. The external circuit 31 charges the alkaline battery 30. At present, the DC output plug of the common AC/DC power converter is usually one of a DC plug, a USB plug and a micro USB plug, so that it can be easily combined with the electronic lock of the present invention. The external power socket 40 is plugged in.

The control circuit 10 has a security control mechanism for unlocking and locking. Preferably, the security control mechanism of the control circuit 10 includes, but is not limited to, a biometric security control mechanism (such as fingerprint recognition, face recognition, or any combination thereof). ), a cryptographic security control mechanism and an inductive security control mechanism. The above several security control mechanisms are respectively provided with corresponding operation interfaces for the user to perform operations for unlocking or locking; for example, the operation interface of the password-based security control mechanism usually includes digital and function buttons 12, For the user to input a password; the operation interface of the biometric security control mechanism may be any one or a combination of the fingerprint scanner 13 and the digital camera 14; the operation interface of the inductive security control mechanism is usually The sensing antenna 15 is included to sense and read the access card.

As shown in FIG. 2 and FIG. 3, the cryptographic security control mechanism is an operation panel provided with digital and function buttons 12 on the outdoor side of the electronic door lock for the user to input a password and use. After the comparison of the passwords entered by the control circuit 10 conforms to the preset password, the control circuit 10 controls the operation of the drive mechanism 20, including driving the lock cylinder 21 to unlock or lock by the motor 22 of the drive mechanism 20.

Referring to FIG. 4, another embodiment of the novel electronic door lock includes an external DC power supply 60 that provides a DC power supply slightly lower than the rated voltage of the alkaline battery 30 through the direct and alkaline battery 30. The connected external circuit 31 charges the alkaline battery 30, wherein the external DC power supply 60 is preferably an AC/DC power converter.

Although the present invention has been disclosed above in the above embodiments, it is not intended to limit the present invention, and the skilled person can make some modifications and retouchings without departing from the spirit and scope of the present invention. The scope of patent protection is subject to the terms of the claims attached to this specification.

30‧‧‧Alkaline battery

40‧‧‧External power outlet

50‧‧‧ cover

Claims (5)

An electronic door lock includes: a control circuit, a driving mechanism, an alkaline battery built in the electronic door lock and an external power socket, the driving mechanism comprising a lock cylinder and a motor for driving the lock core, wherein the alkaline The battery and the control circuit are directly connected in parallel with the external power outlet through an external circuit, and the control circuit controls the motor of the drive mechanism to drive the lock cylinder to unlock or lock. The electronic door lock of claim 1, wherein the control circuit has a security control mechanism for unlocking and locking, the security control mechanism comprises: a biometric security control mechanism, a cryptographic security control mechanism, and an inductive security Any of a variety of control mechanisms. The electronic door lock of claim 1, wherein the control circuit includes a low-power detection and warning circuit for emitting any one of sound and light signals before the built-in alkaline battery is exhausted Combined warning signal. The electronic door lock of claim 1, wherein the external power socket comprises any one of a DC power socket socket, a USB socket, and a micro USB socket. The electronic door lock of claim 1, comprising an external DC power supply, electrically connectable to the external power outlet and providing a DC power supply slightly lower than a rated voltage of the alkaline battery.