KR101651279B1 - Power supply for the electrical equipment to be installed on the door - Google Patents

Abstract

The present invention relates to a power supply device to supply power to electrical equipment installed in a door, comprising: a charger embedded in electrical equipment to supply charged power to electrical equipment while charging power supplied from the outside; and a wireless charger installed in a door frame or a wall to receive external power while forming a state close to the electrical equipment, and supplying the supplied external power to the charger via wireless through electromagnetic induction to charge the charger. The electrical equipment is a digital door lock installed in one side end part of a door to control the opening and locking operation of the door while being operated by the power of the charger. Accordingly, the electrical equipment installed in the door receives current by the electromagnetic induction of a power transmission unit installed in the door frame or the wall without any dry cell, so as to be used without replacement of the dry cell. Since a receiving coil connected to the charger receives current from the power transmission unit by the electromagnetic induction, the transmission power capacity is extended, so various kinds of anti-theft devices, besides the digital door lock, can be installed and used.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a power supply for an electric device installed at a door,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a power supply device, and more particularly, to a power supply device, which is installed on a door frame or a wall and wirelessly supplies power to the electric device, Power supply.

Wireless power transmission technology, which transmits electric energy from a power source to a desired device by radio, was born in the 1800s when an electric motor or a transformer using electromagnetic induction principle was used. After that, a radio wave or a laser laser is used to radiate electromagnetic energy to transmit electrical energy.

As a conventional technique of such a wireless charging field, there is a magnetic induction method in which a current is induced from one coil to the other through a magnetic field. However, the magnetic induction method is limited by the relative position and distance of both coils, and since the load power must be accurate, it has been applied only to some products.

However, recently, a wireless charging technique using such a magnetic induction method has been newly developed. Electromagnetic induction systems can transmit from milliwatts (mW) to dozens of kilowatts (kW) or more and can transmit a few centimeters (cm) or less for capacities less than a few hundred watts (W) The frequency band is several hundreds kHz or less.

In order to increase the transmission efficiency or to increase the coupling coefficient of the transmitting and receiving coils, it is necessary to reduce the transmission distance, It is very important to arrange them so that the centers of the transmitting and receiving coils coincide with each other.

Recently, the Wireless Power Consortium (WPC) has announced the WPC group standard for interoperability for the commercialization of the wireless charging products of small power wireless devices based on the electromagnetic induction technology, and as a result, The market is growing very rapidly, and the market size is growing rapidly.

Through the establishment of this standard, the risk of heat generation due to the electromagnetic induction type external metal material was solved and the interoperability problem between other devices could be solved.

However, due to the standardization of the electromagnetic induction method, new products are emerging rapidly. However, due to the physical shape and size of the receiver coil, miniaturization is difficult to be developed in the case of small products.

In order to solve such a problem, the prior art Korean patent application No. 10-2012-0134461 discloses a wireless charging device.

A conventional wireless charging apparatus includes a reception coil for outputting a current induced by the electromagnetic induction; A pickup for picking up electric power from a current induced by the reception coil; And a battery unit for charging electric power received from the pickup unit, wherein the receiver coil can be provided inside a earring portion in which a user places the earphone on the ear.

The portable terminal further includes a first housing having the receiving coil, the pickup unit, and the battery unit. The earring unit may be provided on one side of the first housing.

The second housing may further include a second housing in which the power conversion unit and the transmission coil are disposed. The size of the front surface of the second housing may be determined according to the size of the transmission coil.

The second housing may be formed at a predetermined angle with the ground. Wherein the second housing further includes an annular portion provided on the front surface of the second housing so that the position of the annular portion overlaps the position between the transmitting coil and the receiving coil when the ear- Can be determined on the front surface.

The number of turns of the reception coil can be determined according to the resonance frequency with the transmission coil, so that a wireless charging method which is difficult to apply to a small product can be extended to a small device, and application to a similar product will be possible.

In recent years, demand for security devices such as digital door locks has been rapidly increasing. Most security devices such as digital door locks use batteries, so they must be replaced when the batteries are discharged. Also, There is a limit to the power available, so it is difficult to install security cameras or other useful devices for crime prevention.

Korean Patent Publication No. 10-2014-0067341 (entitled: Wireless Charging Device)

It is an object of the present invention to provide a power supply apparatus for an electric apparatus that is installed in a door having a wireless charging function without requiring a separate battery such as a locking device of a door .

Also, it is possible to provide a power supply device for an electric device installed in a door that can supply electric power without difficulty in using various security devices that are limited in the use of batteries by expanding the capacity of transmission power by a wireless charging function For other purposes.

According to an aspect of the present invention, there is provided a buried wireless charging apparatus for supplying electric power to an electric apparatus installed in a doorway, the electric power supplying apparatus comprising: A rechargeable battery provided on the electric device; And a wireless charger installed in a door frame or a wall in a state adjacent to the electric device and receiving external power and supplying the supplied external power to the rechargeable battery by electromagnetic induction action to charge the rechargeable battery,

The electric device is a digital door lock which is installed at one end of the door and controls the opening and locking operation of the door while being operated by the power of the rechargeable battery.

The wireless charger may include a transmission coil installed in a door frame or a wall and connected to an external power source and adjacent to the electric device in a closed state of the door, To the electric device wirelessly; A receiving coil connected to the rechargeable battery while facing the transmission coil of the power transmitter in a state of being embedded in the electric device and receiving a current transmitted from the transmission coil and supplying the current to the rechargeable battery; And a charge controller for sensing the charged state of the rechargeable battery and controlling the operation of the power transmitter according to the charged amount of the rechargeable battery.

The electronic device may further include a security camera installed in the door in the same or separate state as the digital door lock, and providing an image while being operated by a power source of the rechargeable battery.

The power transmitter includes a lock ring which is provided on the door frame or the wall and corresponds to the digital door lock constituting the electric device,

Wherein the receiving coil and the charging controller are embedded in the digital door lock,

The digital door lock may include an antenna for wirelessly connecting the power transmitter and the reception coil.

The digital door lock includes an input unit installed on the outdoor side and receiving a control signal from the user for controlling the locking of the door,

The input unit may include a number input pad for inputting a number set by the user, a wireless recognition unit for communicating with the wireless tag member carried by the user in a non-contact manner, a fingerprint recognition unit for inputting the fingerprint information of the user, And a receiving iris recognition unit.

The wireless communication unit may further include a wireless communication unit connected to the digital door lock while being operated by a power source of the rechargeable battery to transmit the operation state of the digital door lock to a user's smartphone through a mobile communication network or Wi-Fi.

The remote control unit may further include a remote controller connected to the wireless communication unit and the digital door lock for remotely controlling the digital door lock by applying a control signal transmitted from a user's smart phone to the digital door lock via the wireless communication unit .

The electric device may further include a fire alarm for detecting a fire by operating the power source of the rechargeable battery with a thermal sensor incorporated therein.

The power supply device for an electric device installed in a door of the present invention is characterized in that the electric device installed at a door does not require a separate battery and is supplied with electric current by the electromagnetic induction of a power transmission part installed in a door frame or a wall, Thus providing a convenient effect.

Further, since the receiving coil connected to the rechargeable battery receives a current by electromagnetic induction from the power transmitting unit, it is possible to extend the capacity of the transmitting power, thereby providing various effects of installing and using various security devices in addition to the digital door lock .

1 is a conceptual diagram of a power supply device according to an embodiment of the present invention;
2 is a view showing an electric device of a power supply device according to an embodiment of the present invention.
3 is a first block diagram of a power supply device according to an embodiment of the present invention;
4 is a second block diagram of a power supply according to an embodiment of the present invention.
5 is a third block diagram of a power supply according to an embodiment of the present invention.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. It should also be understood that the position or arrangement of individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

FIG. 1 is a conceptual diagram of a power supply apparatus according to an embodiment of the present invention. FIG. 2 is a view of an electric apparatus of a power supply apparatus according to an embodiment of the present invention. FIG. 4 is a second block diagram of a power supply apparatus according to an embodiment of the present invention, and FIG. 5 is a third block diagram of a power supply apparatus according to an embodiment of the present invention.

As shown in FIGS. 1 to 5, the present invention is a power supply device for supplying power to an electric device installed at a door, and includes a rechargeable battery 100, an electric device 200, and a wireless charger 300 .

The electric device 200 is a component installed in the door 10 to perform functions such as opening and locking of the door 10 and security.

The electric device 200 may be a digital door lock 230 or a security camera 400 in the digital door lock 230.

 The digital door lock 230 is installed at one end of the door 10 and functions to control the opening and locking operation of the door 10 while being operated by the power of the rechargeable battery 100.

The operation principle of the digital door lock (230) performs opening and locking operations of the door (10) by comparing a preset password with a key pad inputted to release the door. Therefore, if the input number matches the inputted number, the digital door lock 230 is released and the door 10 is opened. If the input door 10 is inconsistent, an error message is displayed and the door 10 is not opened.

The security camera 400 is installed in the door 10 in the same state as the digital door lock 230 or separated from the digital door lock 230. The security camera 400 is operated by the power of the rechargeable battery 100, So that they can be viewed through the Internet.

In addition, since electric power supply of the electric device 200 is not a battery type but a wireless charging type, the supply and discharge of electric power is somewhat free. Therefore, a user can use a fire alarm, a fire alarm, And various kinds of security devices such as a trespasser, a trespasser, and a trespasser can be additionally provided, and various signals can be transmitted to the smartphone 700 in conjunction with the smartphone 700.

The rechargeable battery 100 is a constituent element that is supplied with power and charges and self-accumulates.

The rechargeable battery 100 is detachably inserted into the electric device 200 to be described later. Therefore, the user can replace the battery pack 100 when the rechargeable battery 100 has reached the end of its life due to repetitive use.

The rechargeable battery 100 is built in the electric apparatus 200 and supplies the charged electric power to the electric apparatus 200 while charging the power supplied from the outside, thereby enabling the electric apparatus 200 to operate.

The rechargeable battery 100 may be composed of a nickel cadmium battery, a nickel metal hydride battery, or a lithium ion battery.

It is also possible for a user to use a capacitor to act as a rechargeable battery. As for the capacitor, the capacitor is also called as the capacitor, especially the performance of the capacitor. The rechargeable battery used in the electronic circuit has the same function as the rechargeable battery electrically.

That is, the basic purpose of the capacitor is to 'collect the power and discharge it as needed', and it is one of the necessary parts in order to operate the electronic circuit stably. It operates stably even after a long period of time under repeated charging and discharging environments.

The capacitor is usually used to supply small power when AC power is supplied and charged. It is usually installed inside the device and is used for safety devices that temporarily supply power to the setting memory or operate in case of power failure.

The wireless charger 300 is a component that wirelessly supplies electric power to the electric device 200.

The wireless charger 300 may be a configuration of the power transmitter 310, the receiving coil 220, and the charging controller 210.

The power transmitter 310 is a component that wirelessly transmits electric current to the electric device 200.

The power transmitter 310 is installed on a door frame or a wall and connected to an external power source.

The power transmitter 310 is connected to the electric device 200 in a closed state of the door 10 and includes a transmission coil 320 for inducing electromagnetic induction by an external power source, To the mobile station.

The power transmitter 310 may be constructed in a structure in which a lock ring is installed in the door frame or the wall and corresponds to the digital door lock 230 constituting the electric device 200,

The receiving coil 220 is a component that is built in the electric device 200 and receives electric current from the electric power transmitter 310.

The receiving coil 220 is connected to the rechargeable battery 100 while facing the transmission coil 320 of the power transmitter 310 while being embedded in the electric device 200.

The receiving coil 220 is connected to the rechargeable battery 100 to receive the current transmitted from the transmission coil 320 and supply the rechargeable battery 100 with the current.

Here, the principle of charging the wireless charger 300 wirelessly uses a magnetic induction method. In the magnetic induction method, a magnetic field generated as a current flows generates a new current, that is, a current is supplied to the transmission coil 320 A magnetic field is induced by the magnetic field in an adjacent receiving coil 220 and the induced magnetic field causes a current to be charged into the rechargeable battery 100.

The charge controller 210 is a component for controlling the amount of charge of the rechargeable battery 100.

As shown in FIG. 3, the charge controller 210 can control the charge amount by controlling the power transmitter 310, the electric device 200, and the rechargeable battery 100.

The charging controller 210 is embedded in the electric device 200 to sense the charged state of the rechargeable battery 100 and to control the operation of the power transmitter 310 according to the charged amount of the rechargeable battery 100, do.

That is, the charge controller 210 operates the power transmitter 310 and the electric device 200 only in a state where the door 10 is closed, thereby preventing waste of unnecessary electric power, and when the rechargeable battery is fully charged, And a function of blocking charging in order to prevent malfunction or malfunction due to overcharging in advance

Here, the principle of the wireless charger is briefly divided into three categories. That is, there are a magnetic resonance method, an electromagnetic wave method, and a magnetic induction method.

First, the magnetic resonance method generates a magnetic field that vibrates the resonance frequency in the transmitter coil so that the same resonance frequency flows only through the designed receiver coil. Unlike the electromagnetic wave system, it is almost not absorbed by the human body, so the human body is harmless, even if there is an obstacle between the transmitter and the receiver.

The above method can be used to automatically charge a rechargeable device such as a mobile phone and a notebook in the room by installing the power station in various places in the house.

Second, the electromagnetic wave method is a technique for transmitting power by radiating a microwave signal into the air through an antenna using a microwave.

This method is disadvantageous in that a very large transmitting antenna is required and power can be absorbed in the atmosphere or obstructed by moisture and generate harmful high output energy.

Finally, the magnetic induction method is a principle in which a magnetic field generated as a current flows to generate a new electric current, the electric power transmission efficiency is as high as 90% or more, and the transmission distance is short. As the WPC is standardized, it is applied to electric devices such as smart terminals.

Among the above methods, the best mode can be adopted and applied. As described above, the present invention adopts the magnetic induction mode among the above modes.

The receiving coil 220 and the charging controller 210 are embedded in the digital door lock 230 and the digital door lock 230 is provided with an antenna for wirelessly connecting the power transmitter 310 and the receiving coil 220.

The digital door lock 230 may include an input unit 500 installed on the outdoor side to receive a control signal for controlling the locking of the door 10 from a user.

The input unit 500 includes a number input pad 510 for receiving a number set by a user, a wireless recognition unit 520 for performing non-contact communication with a wireless tag member such as a stick key carried by a user, An input fingerprint recognition unit 530, and an iris recognition unit 540 that receives the iris information of the user.

In addition, the wireless communication unit 600 and the remote control unit 610 may further include a remote control unit 610 to enable remote control using the smartphone 700.

The wireless communication unit 600 is connected to the digital door lock unit 230 while being operated by the power source of the rechargeable battery 100 so that the operation state of the digital door lock unit 230 can be changed through a mobile communication network, a Wi- And transmits it to the smartphone 700.

The remote control unit 610 is connected to the wireless communication unit 600 and the digital door lock unit 230 and applies a control signal transmitted from the user's smart phone 700 to the digital door lock unit 230 through the wireless communication unit 600 And functions to remotely control the digital door lock (230).

A method of operating a power supply for an electric device installed in a door of the present invention includes the steps of: receiving power from a user by connecting the power cord of the power transmitter 310 to an external power source or a power source, Electromagnetic induction is induced in the built-in transfer coil 320 so that electromagnetic induction is caused in the reception coil 220 built in the electric device 200 facing the transmission coil 320 and the electric current is received by the reception coil 220, And charges the rechargeable battery 100 connected to the receiving coil 220 by supplying current.

The user can operate the digital door lock 230, the security camera 400 and various security devices using the power of the rechargeable battery 100.

In addition, the user can control the operation of the digital door lock 230 through the use of a stick key, a fingerprint, iris, and a password input method, and can also control the digital door lock 230 remotely by interlocking with the digital door lock 230 have.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And such variations and modifications are intended to fall within the scope of the appended claims.

10: door 100: rechargeable battery
200: electric machine 210: charge controller
220: Receiving coil 230: Digital door lock
300: wireless charger 310: power transmitter
320: Transfer coil 400: Security camera
500: input unit 510: number input pad
520: radio recognition unit 530: fingerprint recognition unit
540: iris recognition unit 600: wireless communication unit
610: remote control unit 700: smart phone

Claims (8)

A power supply device for supplying power to an electric device installed at a door,
A rechargeable battery which is built in the electric appliance and supplies a charged electric power to the electric appliance while charging a power supplied from the outside; And
And a wireless charger installed in the door frame or the wall to receive external power and supplying the supplied external power to the rechargeable battery by electromagnetic induction action to charge the rechargeable battery,
The electric device includes:
A digital door lock installed at one end of the door to control the opening and locking operation of the door while being operated by the power of the rechargeable battery,
The wireless charger includes:
And a transmission coil installed in the door frame or the wall to be connected to the external power source and adjacent to the electric device in the closed state of the door, A transmitting power transmitter;
A receiving coil connected to the rechargeable battery while facing the transmission coil of the power transmitter in a state of being embedded in the electric device and receiving a current transmitted from the transmission coil and supplying the current to the rechargeable battery; And
And a charging controller for sensing the charged state of the rechargeable battery and controlling the operation of the power transmitter according to the charged amount of the rechargeable battery,
The power transmitter includes:
Wherein a lock ring is provided in the door frame or the wall corresponding to the digital door lock constituting the electric device,
The receiving coil and the charging controller,
A digital door lock unit,
In the digital door lock,
An antenna for wirelessly connecting the power transmitter and the reception coil is installed,
The electric device includes:
And a fire alarm for detecting a fire while being operated by a power source of the rechargeable battery with the heat detection sensor incorporated therein.
delete The method according to claim 1,
The electric device includes:
And a security camera installed at the door in a state of being formed with the digital door lock or separated from the digital door lock and providing an image while being operated by the power of the rechargeable battery. Device.
delete The method according to claim 1,
In the digital door lock,
And an input unit installed on the outdoor side for receiving a control signal from the user for controlling the locking of the door,
Wherein the input unit comprises:
A fingerprint recognition unit for inputting the fingerprint information of the user, and an iris recognition unit for inputting the iris information of the user. The fingerprint recognition unit includes a number input pad for inputting the number set by the user, a wireless recognition unit for non-contact communication with the wireless tag member carried by the user, And a power supply unit for supplying electric power to the door.
The method according to claim 1,
And a wireless communication unit connected to the digital door lock and operated by the power source of the rechargeable battery to transmit the operation state of the digital door lock to a user's smartphone through a mobile communication network or Wi-Fi. Power supply for the device.
The method of claim 6,
And a remote control unit connected to the wireless communication unit and the digital door lock, and remotely controlling the digital door lock by applying a control signal transmitted from the user's smart phone to the digital door lock via the wireless communication unit Power supply for electrical equipment installed at the door.
delete

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