KR101703271B1

KR101703271B1 - Wireless electric power transmission device of clip type comprising battery

Info

Publication number: KR101703271B1
Application number: KR1020150093674A
Authority: KR
Inventors: 진대원
Original assignee: 주식회사 이랜텍
Priority date: 2015-06-30
Filing date: 2015-06-30
Publication date: 2017-02-09
Also published as: KR20170003850A

Abstract

A clip type wireless power transmission apparatus including a battery according to the present invention includes an upper housing, a lower housing, and a connection portion connecting the upper housing and the lower housing, wherein the gap between the upper housing and the lower housing is adjustable A wireless charging coil unit is installed in the upper housing, a battery unit is installed in the lower housing, and a sensing sensor unit for sensing that the wireless power receiving apparatus approaches the wireless charging coil unit.
According to the present invention, the wireless power transmission device can be easily installed on a table or the like and can be collected.
In addition, since a battery built in the wireless power transmission apparatus is charged to transmit wireless power, a separate cable for power supply is not required. When power transmission is not performed, only the minimum power is supplied to the wireless power reception apparatus By being configured to sense approach, unnecessary waste of power can be prevented.

Description

&Lt; Desc / Clms Page number 1 > CLIP TYPE COMPRISING BATTERY < RTI ID = 0.0 >

The present invention relates to a wireless power transmission device, and more particularly, to a wireless power transmission device that includes a clip including a battery that is configured as a clip type and can be easily installed and removed on a table, Type wireless power transmission apparatus.

2. Description of the Related Art [0002] With the recent development of information and communication technology, there has been an increase in the use of portable terminals capable of not only voice calls but also internet, video calls and various document operations.

Generally, the charging method of the portable terminal is most commonly used by charging the charger by placing the portable terminal in contact with the terminal, or charging the connector of the charger by directly connecting the connector of the portable terminal.

Recently, a wireless charging method has been developed in which charging is performed by placing a portable terminal on a charger or placing the portable terminal near a charger without directly connecting a connector of the charger and a connector of the portable terminal.

The wireless charging method is largely a magnetic resonance method and an electromagnetic induction method. The magnetic resonance method is a method of transmitting power through a frequency between transmitting and receiving ends of power for wireless charging.

On the other hand, in the electromagnetic induction method, induction current is generated between two coils disposed adjacent to each other and charged, and the principle of induction current is generated according to the number of windings of the two coils and the distance between the coils.

Conventionally, a power transmission apparatus for wireless charging converts a commercial power into a power of a predetermined voltage required for wireless charging and transmits the power, thus providing a cable for supplying commercial power to the power transmission apparatus.

However, such a cable restricts the installation position when the power transmission device is placed on a table or the like, and a cable disposed outside the table may interfere with the passage of people.

In addition, in the conventional power transmission apparatus for wireless charging, even when wireless charging is not performed, predetermined power is always supplied, which causes power waste.
As a prior art related to a clip type wireless power transmission apparatus including a battery unit according to the present invention, there is a Korean Registered Patent No. 10-1305142 entitled " a table equipped with a wireless charging device using battery power ".

An object of the present invention is to provide a clip-type wireless power transmission apparatus including a battery, which is configured as a clip type and can be installed and removed easily on a table or the like.

It is yet another object of the present invention to provide a clip-type wireless power transmission apparatus that includes a battery configured such that a battery is embedded in a wireless power transmission apparatus and is chargeable so that a separate cable for power supply is not required.

Yet another object of the present invention is to provide a clip type wireless communication device including a battery configured to detect an approach of a wireless power receiving device by supplying only a minimum amount of power when power transmission is not performed, thereby preventing unnecessary waste of electric power And to provide a power transmitting apparatus.

In order to accomplish the above object, a clip type wireless power transmission device including a battery according to the present invention includes an upper housing, a lower housing, and a connection portion connecting the upper housing and the lower housing, The upper housing is provided with a wireless charging coil unit, the lower housing is provided with a battery unit, and a sensing sensor unit for sensing that the wireless power receiving apparatus approaches the wireless charging coil unit .

Preferably, when the wireless power receiving apparatus is not accessed by the wireless charging coil unit, power is supplied from the battery unit to the detection sensor unit at a predetermined time interval.

Here, the detection sensor unit may be configured to detect a change in the magnetic field of the wireless charging coil unit.

Meanwhile, a charging port for charging the battery unit may be installed in the lower housing.

Preferably, the detection sensor unit includes a hall sensor.

According to the present invention, the wireless power transmission apparatus can be easily installed on a table or the like, and can be easily separated from the table and collected.

In addition, it is configured to charge the battery built in the wireless power transmission device and transmit wireless power, so that no separate cable for power supply is required.

In addition, when the power transmission is not performed, only the minimum power is supplied to detect the approach of the wireless power receiving apparatus, thereby unnecessary waste of electric power can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
1 is a perspective view of a clip type wireless power transmission apparatus including a battery according to the present invention,
FIG. 2 is a cross-sectional view of the wireless power transmission apparatus in a state where it is installed on a table,
3 is a block diagram of the configuration of the wireless power transmission apparatus,
4 is a circuit configuration diagram of a detection sensor unit included in the wireless power transmission apparatus.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, the terms used in the specification and claims should not be construed in a dictionary sense, and the inventor may, on the principle that the concept of a term can be properly defined in order to explain its invention in the best way And should be construed in light of the meanings and concepts consistent with the technical idea of the present invention.

Therefore, the embodiments shown in the present specification and the drawings are only exemplary embodiments of the present invention, and not all of the technical ideas of the present invention are presented. Therefore, various equivalents It should be understood that water and variations may exist.

FIG. 1 is a perspective view of a clip type wireless power transmission apparatus including a battery according to the present invention, FIG. 2 is a sectional view of the wireless power transmission apparatus in a state where it is installed on a table, FIG. 3 is a block diagram And FIG. 4 is a circuit configuration diagram of a detection sensor unit included in the wireless power transmission apparatus.

A clip type wireless power transmission apparatus including a battery according to the present invention includes an upper housing 10, a lower housing 20, and a connection portion 30 connecting the upper housing 10 and the lower housing 20 And the upper housing 10 is provided with a wireless charging coil part 14 and the lower housing 20 is provided with a battery And a sensing unit 40 for sensing that the wireless power receiving apparatus 100 is approaching the wireless charging coil unit 14.

The upper housing 10 and the lower housing 20 are made of a synthetic resin material and are connected to each other through the connection part 30. [

At this time, the connecting portion 30 is configured to be variable in length in the height direction, and the gap between the upper housing 10 and the lower housing 20 can be adjusted.

As a configuration for varying the length of the connection portion 30, various known configurations may be employed. For example, a connection structure between the upper housing 10 and the lower housing 20 using a sliding fit- And can be installed at the edge of the table by adjusting the interval.

As described above, the gap between the upper housing 10 and the lower housing 20 is fitted to the edge of the table in a state adjusted to match the thickness of the table on which the wireless power transmission apparatus according to the present invention is installed.

The wireless power transmission apparatus according to the present invention is disposed between the upper housing 10 and the lower housing 20 so that the wireless power is received by the charging unit 16 of the upper housing 10 Wireless charging is performed while the receiving wireless power receiving apparatus is placed and placed.

A battery unit 22 and a control circuit unit 24 are installed in the lower housing 20 and the battery unit 22 is charged through the charging connector unit 21. [

The control circuit unit 24 prevents overcharging or overdischarge of the battery unit 22 and also controls the configurations of the entire wireless power transmitting apparatus.

Accordingly, the control circuit unit 24 includes a protection circuit module (PCM) for a battery.

Meanwhile, the upper housing 10 is provided with a wireless charging coil section 14 and a transmission power control section 12.

The transmission power control unit 12 is configured to convert the power from the battery unit 22 into a predetermined voltage used for wireless charging.

The power converted by the transmission power adjusting unit 12 is transmitted to the wireless power receiving apparatus 100 through the wireless charging coil unit 14 in the form of an electromagnetic force.

The wirelessly-charged coil unit 14 may be formed in the shape of a coil using copper or copper alloy wire, but may be formed in the form of a wire on a flexible PCB substrate to reduce the total volume, (12).

In addition, the wiring may be a copper or copper alloy wire formed on the flexible PCB, and the wiring may be formed on the substrate by etching, plating, or the like.

The control unit 24 is connected to a sensing sensor unit 40 for sensing a change in a magnetic field induced in the wireless charging coil unit 14.

The sensing sensor unit 40 includes a Hall sensor device 42 capable of detecting a change in magnetic field applied to the wireless charging coil unit 14 even with fine power, And resistors 46 connected thereto.

Therefore, when the wireless charging receiving apparatus 100 is disposed close to the wireless charging coil unit 14, a change in magnetic field different from the reference magnetic field size in the standby state occurs in the wireless charging coil unit 14, The minute electric power is inputted to the Hall sensor 42. [

The power inputted to the hall sensor 42 is amplified through the amplifying device 44 and input to the control unit 24 through the output unit 48.

If the wireless power receiving apparatus 100 is not disposed in the charging unit 16, for example, 3 to 5 microamperes of power are supplied to the sensing sensor unit 40 every 50 msec to detect a change in the magnetic field.

That is, when the receiving unit is not disposed in the charging unit 16, the minimum power that can detect the change in the magnetic field of the wireless charging coil unit 14 through the sensing sensor unit 40 is supplied at predetermined time intervals So as to detect whether the wireless charging receiving apparatus 100 is disposed in the charging unit 16 through a minimum power supply.

Thus, the power supplied to the detection sensor unit 40 is minimized in a standby state in which wireless charging is not performed, thereby reducing waste power.

In this state, when the wireless power receiving apparatus is disposed in the charging unit 16, a change in the magnetic field is generated in the wireless charging coil unit 14, and a change in the magnetic field is sensed through the sensing sensor unit 40 The wireless charging process begins.

A wireless charging power receiving apparatus 100 includes a conductive coil and a shielding member made of a ferrite material for shielding electromagnetic waves, and the wireless charging power receiving apparatus 100 including the conductive coils and the ferrite shielding members described above is connected to the wireless When approaching the charged coil section 14, a change in the magnetic field occurs in the radio-loaded coil section 14.

When the wireless charging power receiving apparatus 100 is disposed in the charging unit 16, the wireless charging process is started without any action.

When the wireless charging power receiving apparatus 100 is moved away from the charging unit 16 and the magnitude of the magnetic field applied to the wireless charging coil unit 14 is determined to be a standby state after the wireless charging is performed as described above, The power supply from the base station 22 to the transmission power adjuster 12 is stopped.

While the present invention has been described with reference to the exemplary embodiments and the drawings, it is to be understood that the technical scope of the present invention is not limited to these embodiments and that various changes and modifications will be apparent to those skilled in the art. Various modifications and variations may be made without departing from the scope of the appended claims.

10: upper housing
20: Lower housing
30: Connection
40:
100: Wireless power receiving device

Claims

CLAIMS 1. A clip-type wireless power transmission apparatus comprising a battery,
An upper housing;
A lower housing;
And a connection portion connecting the upper housing and the lower housing,
Wherein the connecting portion is configured to be variable in length in a height direction so that an interval between the upper housing and the lower housing facing each other on both sides of the connecting portion is adjustable,
A wireless charging coil unit is installed in the upper housing,
A battery unit and a control circuit unit are installed in the lower housing,
And a sensing sensor unit for sensing that the wireless power receiving apparatus approaches the wireless charging coil unit,
A charging port for charging the battery unit is installed in the lower housing,
Wherein the control circuit unit includes a protection circuit module for preventing overcharge and overdischarge of the battery,
Wherein the detection sensor unit is configured to detect a change in magnetic field of the wireless charging coil unit,
Wherein the power supply unit is configured to supply a predetermined amount of power from the battery unit to the detection sensor unit at predetermined time intervals when the wireless power receiving apparatus is not accessed to the wireless charging coil unit. Power transmission device.

The method according to claim 1,
Wherein the sensing unit comprises a hall sensor. &Lt; Desc / Clms Page number 19 >

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