KR101455343B1 - Wireless power transmitting apparatus of receptacle type - Google Patents

Abstract

The present invention relates to a body having a hollow receiving portion, the receiving portion being formed in a size that can accommodate the wireless power receiving device; A first transmission coil and a second transmission coil, each of which is configured to output a wireless power signal to transmit a wireless power signal to a wireless power receiving apparatus accommodated in the receiving section using an input power source; And a transmission control unit for controlling such that only one of the second transmission coils selectively outputs the radio power signal; And a power supply unit configured to supply the input power to the transmission unit, wherein the transmission control unit controls the transmission coil of the wireless power reception device such that the reception coil of the wireless power reception device is connected to one of the first transmission coil and the second transmission coil, An object detection unit configured to detect whether the object corresponds to an object; And a central control unit for controlling the corresponding one of the first transmission coil and the second transmission coil to operate based on the detection signal of the object detection unit.

Description

[0001] WELELESS POWER TRANSMITTING APPARATUS OF RECEPTACLE TYPE [0002]

The present invention relates to a receptacle type wireless power transmission apparatus.

Generally, rechargeable secondary batteries are mounted as batteries in portable electronic devices such as mobile communication terminals and PDAs (Personal Digital Assistants). To charge the battery, a separate charging device is needed to provide electrical energy to the battery of the portable electronic device using a commercial commercial power source.

Typically, the charging device and the battery are each provided with a separate contact terminal on the outside, thereby electrically connecting the charging device and the battery by connecting the two contact terminals to each other. However, if the contact terminal protrudes to the outside as described above, the appearance is not good, and the contact terminal is contaminated with foreign matter, and the contact state is easily deteriorated easily. Further, when a short circuit occurs to the battery due to carelessness of the user or exposure to moisture, the charging energy can be easily lost.

As an alternative to such a contact charging method, a wireless power charging system has been proposed in which power transmission is performed wirelessly so that the battery is charged in such a manner that the contact terminals of the charging device and the battery are not in contact with each other.

Such a wireless power charging system can typically be placed on a desk, table top, etc., or used in a vehicle. However, when the wireless power charging system is used in the vehicle, the wireless power charging may not be smooth due to the vibration caused by the running of the vehicle.

It is an object of the present invention to provide a receptacle type wireless power transmission apparatus that accommodates a wireless power receiving apparatus and enables stable wireless power charging even in a situation affected by vibration.

It is yet another object of the present invention to provide a receptacle-type wireless power transmission apparatus that allows a user to stably receive a wireless power receiving apparatus while allowing the wireless power receiving apparatus to be accommodated in a simple manner.

A receptacle-type wireless power transmission apparatus according to an embodiment of the present invention for realizing the above-mentioned problems includes a body having a hollow receiving portion, the receiving portion being formed in a size capable of accommodating the wireless power receiving device; A first transmission coil and a second transmission coil, each of which is configured to output a wireless power signal to transmit a wireless power signal to a wireless power receiving apparatus accommodated in the receiving section using an input power source; And a transmission control unit for controlling such that only one of the second transmission coils selectively outputs the radio power signal; And a power supply unit configured to supply the input power to the transmission unit, wherein the transmission control unit controls the transmission coil of the wireless power reception device such that the reception coil of the wireless power reception device is connected to one of the first transmission coil and the second transmission coil, An object detection unit configured to detect whether the object corresponds to an object; And a central control unit for controlling operation of a corresponding one of the first transmission coil and the second transmission coil based on a detection signal of the object detection unit.

Here, the body may be formed in a cylindrical shape, and the receiving portion may be formed as a rectangular parallelepiped-shaped space.

Here, the light emitting unit may further include a light emitting unit installed in the body, and the transmission control unit may inform the operation abnormality of the first transmission coil through the light emitting unit when the first transmission coil is abnormal, And to transmit the wireless power signal.

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Here, the light emitting unit may include: a first light emitting unit corresponding to the first transmission coil; And a second light emitting unit corresponding to the second transmission coil, wherein the transmission control unit can deactivate the first light emitting unit and activate the second light emitting unit when the first transmission coil is abnormal.

Here, when the reception coil of the wireless power receiving apparatus is located on the first transmission coil side, the transmission control unit may control the light emitting unit to notify misalignment of the wireless power receiving apparatus.

Here, the transfer unit may include: a coil panel positioned adjacent to any one of a pair of inner surfaces of the receiving portion, the coil panel including either the first transfer coil or the second transfer coil; And a moving module configured to connect the coil panel and the body, and moving the coil panel toward the other one of the pair of inner surfaces.

Here, the coil panel may include a panel body; And a pressing portion protruding toward the other one of the pair of inner surfaces of the panel body at an end portion corresponding to an inlet of the receiving portion.

The moving module includes: a rod connected to the coil panel; A receiving channel formed in the body to receive the rod; And an elastic body formed to surround the rod and elastically supporting the coil panel toward the other one of the pair of inner surfaces.

Here, the transmission control unit is configured to control operation of the movement module, and the movement module includes: a motor installed in the body, the motor having an output shaft coupled with a pinion; And a rack coupled to the pinion and coupled to the coil panel.

Here, the moving module may further include a pressure sensor that is pressed by the wireless power receiving apparatus according to the operation of the motor, and the transmission control unit may control the operation of the moving module based on the pressure value sensed by the pressure sensor And a central control unit for stopping the control unit.

The transmission unit may further include a reception sensing sensor formed on a bottom surface of the accommodation portion and sensing the wireless power reception device accommodated in the accommodation portion, And a central control unit for initiating operation of the movement module.

The cushioning protection member may further include a cushioning protection member protruding from the receptacle sensing sensor on a bottom surface of the receptacle and protecting the receptacle sensor from the impact while buffering an impact caused by a collision of the wireless power receiver.

A first through hole is formed in the bottom surface of the receiving portion to communicate the receiving portion with the outside of the body. When the buffer protecting member covers the first through hole, the buffer protecting member is provided with a through- A corresponding second through hole can be formed.

Here, the transmission unit may further include a protective coating layer applied to at least one of the first transmission coil and the second transmission coil, for protecting the transmission coil.

Here, the transmission unit may further include a core having a concave portion that is compression-molded with a magnetic material and accommodates the transmission coil.

Here, each of the first transmission coil and the second transmission coil includes a pair of sub-coils arranged such that a part thereof overlaps with each other, and the transmission unit is configured to transmit the pair At least one of the sub coils of the first and second sub coils may output the wireless power signal.

Here, the transmission control unit may be located below the bottom surface of the accommodating portion of the body.

Here, the power supply unit may include: a cable having one end connected to the transmission unit; And a connection jack provided at the other end of the cable and configured to be connected to a power jack of the vehicle.

According to another aspect of the present invention, there is provided a receptacle-type wireless power transmission apparatus including: a body having a mounting portion formed to be inserted into a cylindrical recess of an object; and a charging portion formed with a receiving portion for receiving the wireless power receiving device; A first transmission coil and a second transmission coil, which are built in the charging unit and are configured to output a wireless power signal, respectively, for transmitting a wireless power signal to a wireless power receiving apparatus accommodated in the receiving unit using input power; And a transmission control unit that controls only one of the first transmission coil and the second transmission coil to selectively output the wireless power signal. And a power supply unit connected to the transmission unit and configured to supply the input power to the transmission unit, wherein the transmission control unit controls the transmission coil so that the reception coil of the wireless power reception device is connected to the first transmission coil and the second transmission coil, An object detection unit configured to detect which of two transmission coils corresponds to which transmission coil; And a central control unit for controlling operation of a corresponding one of the first transmission coil and the second transmission coil based on a detection signal of the object detection unit.

Here, the mounting portion may include a cylindrical base portion; And a fixing portion formed at the base portion and fixing the base portion to the inner surface of the recess.

Here, the fixing portion may include a leg which is exposed through the outer circumferential surface of the base portion and is movable in an outward direction of the base portion; And a driving unit that is formed to interlock with the leg and drives the leg to be driven in the outward direction.

The body may further include a rod portion connected to the mounting portion and the charging portion and formed to be bent.

The receptacle-type wireless power transmission apparatus according to the present invention configured as described above can stably receive power signal transmission from the wireless power transmission apparatus to the wireless power reception apparatus even when the wireless power reception apparatus is accommodated and is affected by vibration .

Further, the receptacle-type wireless power transmission device according to the present invention allows the user to stably receive the wireless power receiving device by simply putting the wireless power receiving device into the receiving portion.

1 is a perspective view showing a state in which a receptacle type wireless power transmission apparatus 100 according to an embodiment of the present invention is installed in a cup holder CH of a vehicle.
2 is a perspective view showing the detailed structure of the receptacle type wireless power transmission apparatus 100 of FIG. 1 and the wireless power receiving apparatus 200 accommodated therein.
3 is a block diagram for explaining wireless charging between the transmission unit 130 of the receptacle type wireless power transmission apparatus 100 and the wireless power reception apparatus 200 of FIG.
4 is a longitudinal sectional view for explaining a receptacle type wireless power transmission apparatus 300 according to another embodiment of the present invention.
5 is a perspective view of the coil panel 331 of FIG.
6 is a perspective view of a coil panel 331 'according to a modification of the coil panel 331 of FIG.
FIG. 7 is a block diagram of the central control unit 335 'of the transmission control unit 335 of FIG. 4 and the configurations controlled by the central control unit 335'.
FIG. 8 is a longitudinal sectional view for explaining a receptacle-type wireless power transmission apparatus 400 according to a modification of the receptacle-type wireless power transmission apparatus 300 of FIG.
9 is a perspective view showing a state in which a receptacle type wireless power transmission apparatus 500 according to another embodiment of the present invention is installed in a cup holder CH 'of a vehicle.
10 is a perspective view for explaining the state change of the mounting portion 520 of FIG.
11 is a perspective view showing the driving unit 525 of the fixing unit 523 of FIG.

Hereinafter, a receptacle type wireless power transmission apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the present specification, the same or similar reference numerals are given to different embodiments in the same or similar configurations.

1 is a perspective view showing a state in which a receptacle type wireless power transmission apparatus 100 according to an embodiment of the present invention is installed in a cup holder CH of a vehicle.

Referring to this figure, the dashboard of an automobile is provided with a blowing port WD for discharging cold air or hot air. A cup holder CH for receiving beverage or the like may be installed in the blowing port WD. A power jack (CJ) for supplying power from the battery of the vehicle to the outside is formed on the lower side of the dashboard.

In such an environment, the receptacle-type wireless power transmission apparatus 100 according to the present embodiment can be inserted into the cup holder CH and be mounted thereon. Also, the wireless power transmission apparatus 100 is connected to the power jack CJ, and can operate using the power of the battery of the vehicle.

Specifically, the wireless power transmission apparatus 100 may include a body 110, a transmission unit 130 (see FIG. 2), and a power supply unit 150.

The body 110 has a form accommodated in a recess of the cup holder CH and is formed to receive the wireless power receiving apparatus 200 (see FIG. 2). At this time, if the body 110 has a height protruding from the upper portion of the cup holder CH, the user will be more likely to recognize the entrance of the receiving portion 113 (FIG. 2).

The transmission unit 130 may be included in the body 110 and is also configured to transmit a wireless power signal toward the wireless power receiving device 200.

The power supply unit 150 supplies the input power required for the operation of the transmission unit 130 from the battery of the vehicle. To this end, the power supply unit 150 may be configured to connect the transmission unit 130 and the power jack CJ by wire.

With this configuration, it is possible to use the cup holder CH 'that is mounted and used in the basic structure of the vehicle without changing the basic structure of the vehicle for mounting the wireless power transmission device 100. Thereby, the mounting problem of the wireless power transmission apparatus 100 can be solved simply.

A concrete structure of the above-described wireless power transmission apparatus 100 will be described with reference to FIG.

2 is a perspective view showing the detailed structure of the receptacle type wireless power transmission apparatus 100 of FIG. 1 and the wireless power receiving apparatus 200 accommodated therein.

Referring to the drawings, the wireless power transmission apparatus 100 includes a body 110, a transmission unit 130, and a power supply unit 150 as described above. In addition, the wireless power transmission apparatus 100 further includes a light emitting unit 170 .

The body 110 is accommodated in a cup holder CH (FIG. 1) and has a receiving portion 113 formed therein for receiving the wireless power receiving apparatus 200. For this purpose, the body 110 may be formed in a substantially cylindrical shape, as illustrated in this figure. When the body 110 is cylindrical, the body 110 has a circular upper surface 111 and a circular lower surface 112 facing the upper surface 111. At this time, the upper surface 111 may have the same area as the lower surface 112, or may have a somewhat larger area than the lower surface 112. In the latter case, the body 110 may be formed in a truncated cone shape such that the upper portion of the body 110 is hooked on the upper portion of the cup holder CH (FIG. 1).

The receiving portion 113 may be formed at the center of the body 110 in the form of a hollow portion. The receiving portion 113 may extend along a direction substantially perpendicular to the upper surface 111 of the body 110 (depth direction of the body 110). Specifically, the receiving portion 113 may be an empty space of a substantially rectangular parallelepiped having an inlet 114 formed on the upper surface 111 and a floor surface 117 formed on the lower surface 112 side. In this case, the widest pair of inner surfaces among the inner surfaces of the accommodating portion 113 may be referred to as a first inner surface 115, or a second inner surface 116, respectively.

The transmission unit 130 is a configuration for generating a wireless power signal using input power. The transmitting unit 130 is configured to direct the wireless power signal to the wireless power receiving apparatus 200 accommodated in the receiving section 113, for example, a mobile communication terminal, a portable music player, and the like.

The transmission unit 130 may include a transmission coil 131 and a transmission control unit 135.

The transmission coil 131 is configured to output the wireless power signal. The transmission coil 131 may include a first transmission coil 132 positioned on the first inner surface 115 side and a second transmission coil 133 positioned on the second inner surface 116 side. More specifically, the first transmission coil 132 may be located within the body 110, specifically, inside the first inner surface 115. The second transmission coil 133 may also be located inside the body 110, specifically, inside the second inner surface 116. Alternatively, the transmission coil 131 may be provided as one, and may be installed only on one of the first inner surface 115 and the second inner surface 116.

The transmission control unit 135 controls the operation of the transmission coil 131 to output the wireless power signal. The transmission control unit 135 may control the first transmission coil 132 and the second transmission coil 133 so that only one of the first transmission coil 132 and the second transmission coil 133 outputs the wireless power signal. This will be described in detail with reference to Fig. The transmission control unit 135 may be located in the body 110, specifically, below the bottom surface 117 of the receiving unit 113. In this case, the transmission control unit 135 is advantageous in that it receives less magnetic influence due to the operation of the transmission coil 131 than when the transmission control unit 135 is located at the side of the body 110. [

The power supply unit 150 is a configuration for supplying the input power to the transmission unit 130. The power supply unit 150 may include a cable 151 and a connection jack 153. One end of the cable 151 is connected to the transmission unit 130, and the other end thereof is connected to the connection jack 153. The connection jack 153 is formed to be connected to a power jack (CJ, see Fig. 1) of the vehicle. If the wireless power transmission apparatus 100 is used in an indoor space other than a vehicle, the connection jack 153 may be formed in a plug shape corresponding to the outlet.

The light emitting unit 170 is configured to emit light to notify the user of the operating state of the transfer unit 130 (and the power supply unit 150). The light emitting unit 170 may include one or more light emitting units provided on the upper surface 111 of the body 110. The light emitting unit may include an LED as a light source. The light emitting unit 170 includes the first light emitting portion 171 located on the first inner surface 115 side and the second light emitting portion 173 located on the second inner surface 116 side . The first light emitting portion 171 may be used to display information related to the first transmission coil 132 and the second light emitting portion 173 may be used to display information relating to the second transmission coil 133. [ The control of the first light emitting unit 171 and the second light emitting unit 173 may be performed by the transmission control unit 135, which will be described with reference to FIG.

According to this configuration, in order to charge the battery of the wireless power receiving apparatus 200, the user merely needs to put the wireless power receiving apparatus 200 into the receiving section 113.

In this case, since most of the wireless power receiving apparatus 200 is also housed in the receiving section 113, the possibility that the wireless power receiving apparatus 200 is separated from the receiving section 113 due to vibration or the like becomes low. If the accommodating portion 113 extends in the depth direction of the body 510, the possibility of such disengagement will be further lowered.

As a result, while it is simple to place the wireless power receiving apparatus 200 in a state for charging the wireless power transmission apparatus 100, the wireless power receiving apparatus 200 can be stably maintained in a state for charging .

Further, if two transmission coils 132 and 133 are provided, one of them will output the wireless power signal to the wireless power receiving apparatus 200, so that the user can select either the first inner surface 115 and the second inner surface < There is an advantage that the wireless power receiving apparatus 200 can be input into the receiving section 113 without discriminating between the wireless power receiving apparatuses 116.

The above transmission unit 130, the power supply unit 150, and the light emitting units 170 will be described with reference to FIG. 3 in relation to how they operate with respect to the wireless power receiving apparatus 200. FIG.

3 is a block diagram for explaining wireless charging between the transmission unit 130 of the receptacle type wireless power transmission apparatus 100 and the wireless power reception apparatus 200 of FIG.

Referring to the drawings, a wireless power charging system in accordance with an embodiment of the present invention includes a wireless power transmission apparatus 100 (FIG. 2) and a wireless power receiving apparatus 200. When the wireless power transmission apparatus 100 transmits a wireless power signal to the wireless power reception apparatus 200 by the electromagnetic induction method, the wireless power reception apparatus 200 receiving the power signal transmits the wireless power signal A battery is charged, or power is supplied to an electronic apparatus connected to the wireless power receiving apparatus 200.

Hereinafter, the related configurations of the wireless power transmission apparatus 100, specifically, the transmission unit 130 and the wireless power reception apparatus 200 will be described.

The transmission unit 130 may further include an AC / DC converter 141 in addition to the transmission coil 131 and the transmission control unit 135 described above. However, if the wireless power transmission apparatus 100 utilizes the vehicle's battery (which stores the DC current), the AC / DC converter 141 may not be needed.

First, the transmission coil 131 is an apparatus for transmitting a power signal to the reception coil 210 of the power reception device 200 in an electromagnetic induction manner. In this embodiment, two coils (that is, a first transmission coil 132 And the second transmission coil 133) can be applied.

The transmission control unit 135 may include an object sensing unit 136, a central control unit 137, a switching control unit 138, a driving driver 139, and a series resonant converter 140.

The object sensing unit 136 can sense a load change of the transmission coil 131 and determine whether the load change is caused by the wireless power receiving apparatus 200 (i.e., function as an ID checking unit). The object sensing unit 136 may include a first transmission coil 132 and a second transmission coil 133. The first transmission coil 132 may include a first transmission coil 132 and a second transmission coil 133. When the transmission coil 131 is composed of the first transmission coil 132 and the second transmission coil 133, The receiving coil 210 of the wireless power receiving apparatus 200 can be determined. The object sensing unit 136 performs a function of filtering and processing the charge state signal transmitted from the wireless power receiving apparatus 200. For example, when the ID signal, which is a response signal of the ID call signal transmitted through the transmission coil 131, is received, the ID signal is filtered and processed, and a charge state signal including information on the battery cell or the charge voltage Once received, it filters and processes it.

The central control unit 137 analyzes the identification signal received from the transmission coil 131 and transmits the wireless power signal through the transmission coil 131 to the central control unit 137. [ And transmits the signal to the driving driver 139. The central control unit 137 controls the two transmission coils 132 and 132 in accordance with the determination result of the object detection unit 136. In the case where the transmission coil 131 is composed of the first transmission coil 132 and the second transmission coil 133, 133, only one of the transmission coils close to the reception coil 210 can be controlled to operate. Thereby, when the user inserts the direction (position) of the receiving coil 210 into the receiving portion 113 (Fig. 1) without discrimination, the central control portion 137 controls the receiving coil 210 with the appropriate transmitting coil 132 or 133, Lt; / RTI > The central control unit 137 controls the drive driver 139 to change the wireless power signal based on the charge state signal received from the transmission coil 131. [

The switching control unit 138 controls the switching operation of the switch between the series resonant converter 140 and the first transmission coil 132 and the second transmission coil 133. In this embodiment, two transmission coils 132 and 133 are illustrated. However, when only one transmission coil 131 is used, the switching control unit 138 is unnecessary.

The drive driver 139 controls the operation of the series resonant converter 140 through the control of the central control unit 137. [

The series resonant converter 140 generates a transmission power for generating a power signal to be transmitted by the control of the drive driver 139 and supplies it to the transmission coil 131. In other words, when the central control unit 137 transmits a power control signal for transmitting a power signal having a required power value to the drive driver 139, the drive driver 139 generates a series resonance Type converter 140 and the series resonant converter 140 applies the transmission power corresponding to the power value required by the control of the drive driver 139 to the transmission coil 131 so that the required intensity So that the wireless power signal of the mobile station can be transmitted. The series resonant converter 140 is configured to generate a first object detection signal and a second object detection signal through the first transmission coil 132 and the second transmission coil 133 under the control of the drive driver 139 And serves to supply power.

The AC / DC converter 141 is an apparatus for changing an AC power source of 220 V or 110 V to a DC power source of a predetermined voltage. The output voltage value is changed under the control of the central control unit 137. However, the AC / DC converter 141 is not necessary if the wireless power transmission apparatus 100 uses the battery (storing the DC current) of the vehicle as described above.

The wireless power receiving apparatus 200 receiving a power signal and receiving power includes a receiving coil 210 for generating an inductive power based on the transmitted power signal, a rectifying unit 220 for rectifying the induced power, And a receiving control unit 240 for controlling the receiving coil 210, the rectifying unit 220 and the battery cell module.

The receiving coil 210 is a component for receiving a wireless power signal transmitted from the transmitting coil 131 of the transmitting unit 130.

The rectifying unit 220 rectifies the radio power received from the receiving coil 210 to a DC voltage and maintains the charged state until the charging starts.

Under the control of the reception control unit 240, the battery cell module 230 becomes a charging object to be charged through the DC power source in the rectifying unit 220. On the other hand, the battery cell module 230 includes a protection circuit such as an overvoltage and overcurrent prevention circuit, a temperature sensing circuit, and the like, and includes a charge management module for collecting and processing information such as the state of charge of the battery cell.

The reception controller 240 is a component that controls the current of the power source charged in the rectifier 220 so that a proper current flows through the battery cell module 230.

Meanwhile, three sensors may be installed for detecting the wireless power reception signal transmitted from the wireless power receiving apparatus 200 side. The three sensors may include a DC current sensor for measuring the DC current of the drive driver 139 and an AC current sensor and an AC voltage sensor for measuring AC current and AC voltage of the transfer coil 131.

That is, when a wireless power reception signal (including an ID signal and a charging state signal) is received from the wireless power receiving apparatus 200 through the transmission coil 131, the current and voltage in the coil 131 And the driving driver 139 are changed, and the wireless power reception signal is received by sensing the current.

In this embodiment, more accurate reception of the wireless power reception signal is possible by using three sensors. That is, the central control unit 137 generates an error signal only when the signals from the alternating current sensor, the DC current sensor, and the AC voltage sensor are all in error. If any one of them is a normal signal, To control the operation. If two or more signals are normal signals, their power levels are measured, the best signal (the signal with the highest power level) is selected, the best signal is processed to acquire the radio received signal, Thereby controlling the wireless power transmission.

Next, with respect to the operation states of the first transmission coil 132 and the second transmission coil 133, a description will be given of a manner in which the central control unit 137 controls the light emission unit 170. FIG.

First, when both the first transmission coil 132 and the second transmission coil 133 operate normally, the central control unit 137 determines whether the first light emitting unit 171 and the second light emitting unit 173 are at least partially So that even a light source can be controlled to emit light. For example, one of the two light sources of the first light emitting portion 171 and the second light emitting portion 173 outputs green light ('output in a standby state').

If the receiving coil 210 is receiving a wireless power signal from the first transmission coil 132, the first light emitting unit 171 outputs light of a color indicating that the remaining one light source is also being charged, Output of charge state ']. The light is yellow when charging is in progress, but can be switched to green when the battery is fully charged.

Alternatively, if the first transmission coil 132 operates abnormally, the central control unit 137 may inactivate the first light emitting unit 171 entirely and output only the second light emitting unit 173 in a standby state. The central control unit 137 stops the operation of the first transmission coil 132 and controls only the second transmission coil 133 to output the wireless power signal.

In this situation, if the wireless power receiving apparatus 200 is arranged so that the receiving coil 210 corresponds to the first transmitting coil 132, the wireless power receiving apparatus 200 is taken out of the receiving section 113 and turned over And then inserted into the receiving portion 113 again. In order to inform such a necessity, the central control unit 137 may cause the remaining one light source of the second light emitting unit 173 to output an output ['output in a misaligned state'] in which the yellow light is blinking. Thereby, the user can take out the wireless power receiving apparatus 200 and put it in the receptacle 113 in the upside. In this case, the central control unit 137 may determine that the second transmission coil 133 corresponds to the reception coil 210, so that the second light emitting unit 173 outputs the charged state output.

Next, another aspect of the above-described wireless power transmission apparatus 200 will be described with reference to Figs. 4 to 7. Fig.

4 is a longitudinal sectional view for explaining a receptacle type wireless power transmission apparatus 300 according to another embodiment of the present invention.

Referring to the drawing, a wireless power transmission apparatus 300 includes a body 310, a transmission unit 330, a power supply unit, and a light emitting unit 370 6), but the coil panel 331 including the transmission coil 331 (FIG. 5) can be moved in the width direction W of the accommodation portion 313 and the reception detection sensor 343 And the buffering protecting member 380 are further provided.

Specifically, protruding portions 319 may be formed on both sides of the inlet 314 of the receiving portion 313 of the body 310. [ This protrusion 319 allows the user to more easily grasp the position of the inlet 314 when the user intends to put the wireless power receiving device 200 (see Fig. 2) into the receiving portion 313. The lid 320 may be provided on the inlet 314 side. The cover 320 opens and closes the inlet 314 to block the entry of foreign matter into the receiving portion 314.

The transmission unit 330 may include a coil panel 331, a transmission control unit 335, and a movement module 336. [

The coil panel 331 is configured to be moved in the width direction W by the moving module 336. [ The coil panel 331 may include a panel body 332 and a pressing portion 333. The panel body 332 incorporates a transmission coil 3311 (FIG. 5) and can be generally in the form of a rectangular panel. The panel body 332 may be provided on the first inner surface 315 and the second inner surface 316 side of the receiving portion 313, respectively. At this time, the first inner surface 315 is retracted from the line passing through the center of the inlet 314 rather than the second inner surface 316. The retracted width of the first inner surface 315 increases the width of the moving space of the panel body 332 located on the first inner surface 315 side. A pressing portion 333 protruding toward the second inner surface 316 may be formed on the end side of the inlet 314 of the panel body 332. The pressing portion 333 may be formed of a material having good buffering and frictional properties, such as a sponge or a nonwoven fabric.

The transmission control unit 335 is configured to control the operation of the movement module 336. [ The transmission control unit 335 may be located on the side of the body 310. In such a case, as the wireless power receiving apparatus 200 is inserted into the accommodating portion 313, the impact is less affected than when it is disposed under the floor surface 317 from the impact.

The movement module 336 includes a motor 337 and a pinion 338, a rack 339, a pressure sensor 340, a guide projection 341, a guide channel 342, and a reception sensor 343 can do. The pinion 338 is mounted on the output shaft of the motor 337. The rack 339 is disposed to engage with the pinion 338 and is also connected to the panel body 332. [ The pressure sensor 340 is installed on a surface facing the second inner surface 316 of the panel body 332. The guide protrusion 341 is connected to the panel body 332 and inserted into the guide channel 342. The reception sensing sensor 343 is installed on the bottom surface 317 of the receiving portion 313 to sense the wireless power receiving device 200 (see FIG. 2) accommodated in the receiving portion 313.

Next, the cushioning protecting member 380 may be disposed on the bottom surface 317 of the accommodating portion 313. The shock absorbing protective member 380 absorbs the impact on the bottom surface 317 from the wireless power receiving apparatus 200 that is put into the receiving portion 313. [ The buffering protecting member 380 may be a pad formed of a cushioning material such as rubber or silicone in the present embodiment. Alternatively, the cushioning protecting member 380 may be a spring. At this time, the cushioning protection member 380 is protruded rather than the cushioning sensor 343, so that the cushioning sensor 343 does not collide with the wireless power receiving apparatus 200. When the second through hole 319 is formed in the bottom surface 317 of the body 310 for the discharge of the foreign matter introduced through the inlet 314 of the accommodating portion 313, The first through hole 381 may be formed corresponding to the cushioning protecting member 380 covering the first through hole 380. [

With this configuration, even if the size (mainly the thickness along the width direction W) of the wireless power receiving apparatus 200 accommodated in the accommodating portion 313 is changed, the transmission control unit 335 controls the moving module 336 So that the coil panel 331 can be brought into close contact with the receiving coil 210 of the wireless power receiving apparatus 200.

Specifically, the rack 339 engaged with the pinion 338 is moved laterally in the width direction W by the operation of the motor 337. Thereby, the coil panel 331 connected to the rack 339 can be moved laterally in the width direction (W). At this time, the guide protrusion 341 connected to the coil panel 331 is moved along the coil panel 331 while being inserted into the guide channel 342, so that the posture of the coil panel 331 is maintained.

The operation of the movement module 336 may be performed by the object detection unit 136 (FIG. 3) sensing the reception coil 210 and controlling the central control unit 335 'based on the detection result.

Alternatively, the operation of the moving module 336 may be performed by the wireless power receiving apparatus 200 being inserted into the receiving section 313. [ For this purpose, the detection result of the reception sensor 343 can be used. In addition, it can be used for the detection result of the pressure sensor 340 for stopping the movement module 336. Further, a light emitting unit 370 may be used for displaying information about the operation of the movement module 336 and the operation thereof. Specific details thereof will be described later with reference to Fig.

Now, a specific configuration of the coil panel 331 will be described with reference to Fig.

5 is a perspective view of the coil panel 331 of FIG.

The panel body 332 of the coil panel 331 may include a transmission coil 3311, a core 3315, and a protective coating layer 3317. [

The transmission coil 3311 may include a pair of sub-coils 3312 and 3313. [ At this time, the pair of sub-coils 3312 and 3313 may be partially overlapped with each other.

The core 3315 is formed of a magnetic material. Ferrite or the like may be used as the magnetic material. Compressing the material may shield the magnetic field generated by the transmission coil 3311 while reducing the thickness of the core 3315. The core 3315 may have a concave portion 3316 for receiving the transmission coil 3311 on its wide surface. The concave portion 3316 has a stepped structure having two layers of bottom surfaces, so that the pair of sub-coils 3312 and 3313 are arranged in a state in which they are partially overlapped with each other. The ends of the pair of sub coils 3312 and 3313 can extend outward through the opening of the side wall defining the concave portion 3316 of the core 3315. [ In the above description, the core 3315 is described as having the concave portion 3316, but it is also possible to form the core 3315 as a simple plate type without the concave portion 3316.

The protective coating layer 3317 is a layer made of the coating material applied to the transfer coil 3311. The coating material may be applied to one side, or both sides, of the transfer coil 3311. For the coating, for example, a UV coating method may be used. The protective coating layer 3317 is provided to protect the transfer coil 3311 from the influence of vibration, moisture, heat, and the like applied to the transfer coil 3311.

Other forms of such a panel body 332 will be described with reference to Fig.

FIG. 6 is a perspective view of a panel body 332 'according to a modification of the panel body 332 of FIG.

Referring to this figure, the panel body 332 'differs from the panel body 332 of the previous embodiment in that it has only one coil as the transmission coil 3311'.

Thereby, the concave portion 3316 'has only the bottom surface forming one plane having a single depth. Further, the core 3315 'is also smaller than the core 3315 of the previous embodiment, and the overall width becomes shorter.

In addition, the protective coating layer 3317 'is also formed so as to cover one transmission coil 3311'.

The panel body 332 'having such a configuration is advantageous in that the panel body 332' has a smaller volume (thickness and width) than the panel body 332 of the previous embodiment.

The operation method will be described with reference to Fig. 7 for the configuration described with reference to Figs. 4 to 6. Fig.

FIG. 7 is a block diagram of the central control unit 335 'of the transmission control unit 335 of FIG. 4 and the configurations controlled by the central control unit 335'.

Referring to this figure, the transmission control unit 335 may include a central control unit 335 '. The central control unit 335 'controls the movement of the coil panel 331 and the output of the wireless power signal by the transmission coil 3311. The user input unit 390 is configured to input a command signal related to the movement of the coil panel 331 to the central control unit 335 '. To this end, the user input unit 390 may include a button-type key, a touch key, or a voice recognition module.

Specifically, the central control unit 335 'determines whether the wireless power receiving apparatus 200 is accommodated in the receiving unit 313 based on the detection result of the reception sensing sensor 343. If the wireless power receiving apparatus 200 is in a state of being accommodated, the central control unit 335 'operates the motor 337 of the movement module 336. [

The operation of the motor 337 causes the panel body 332 to advance along the width direction W in the direction toward the second inner surface 316. [ As the panel body 332 advances, the pressure sensor 340 is pressed by the wireless power receiving apparatus 200. Based on the pressure value sensed by the pressure sensor 340, the central control unit 335 'stops the operation of the motor 337. [ At this time, when the pressing portion 333 presses the wireless power receiving apparatus 200 at the upper side (position near the inlet 314), the wireless power receiving apparatus 200 tries to jump out of the inlet 314 by vibration or the like It is possible to more strictly restrict the above.

The central control unit 335'communicates with at least one of the pair of sub coils 3312 and 3313 according to the relationship between the pair of sub coils 3312 and 3313 forming the transmission coil 3311 and the reception coil 210, So that the power signal is output. The determination as to which coil of the pair of sub-coils 3312 and 3313 corresponds to the receiving coil 210 will be described with reference to FIG. 3 as the first transmission coil 132 and the second transmission coil 133 It is possible to follow a mechanism for determining which coil corresponds to the receiving coil 210. [ In this manner, the optimum radio power signal can be transmitted to the receiving coil 210 regardless of the position of the receiving coil 210 (mainly the position along the height direction of the body 310) The degree of freedom with respect to the position of the receiving coil 210 can be improved. In addition, since the coil panel corresponding to the receiving coil 210 among the coil panel 331 and the other coil panel (on the side of the second inner surface 316) outputs a radio power signal as described in the foregoing embodiment, The degree of freedom of the input direction of the user with respect to the accommodating portion 313 of the wireless power receiving apparatus 200 is also improved. However, if there is almost no change in the position of the receiving coil 210 (the position along the height direction of the body 310), it is possible to adjust the positional relationship between the pair of sub coils 3312 and 3313 and the receiving coil 210 No control is required. At this time, employing the panel body 332 'described with reference to FIG. 6 makes it possible to obtain a wireless power transmission apparatus having a simple and structurally simple configuration.

The central control unit 335'may use the light emitting unit 370 while the wireless power receiving apparatus 200 is being charged by using the coil panel 331 or another coil panel (on the second inner surface 316 side) The user can be informed of the status of the operation. Such a notification method can be applied with reference to FIG. 3.

The central control unit 335 'may operate the motor 337 to slightly retract the coil panel 331 toward the first inner surface 315 when the charging of the wireless power receiving apparatus 200 is completed. This is to reduce the restriction of the user to take out the wireless power receiving apparatus 200 from the receiving section 313. Alternatively, even when charging the wireless power receiving apparatus 200, when the command signal is received through the user input unit 390, the central control unit 335 'may retract the coil panel 331 as described above.

Another embodiment of the receptacle-type wireless power transmission apparatus 300 described above with reference to Fig. 4 will be described with reference to Fig.

FIG. 8 is a longitudinal sectional view for explaining a receptacle-type wireless power transmission apparatus 400 according to a modification of the receptacle-type wireless power transmission apparatus 300 of FIG.

Referring to FIG. 3, the wireless power transmission apparatus 400 includes a body 410, a transmission unit 430, a power supply unit, and a light emitting unit 470, similar to the wireless power transmission apparatus 300 But the coil panel 431 is elastically deflected to the center of the width direction W of the accommodating portion 413.

Specifically, the transmission unit 430 may include a coil panel 431, a transmission control unit 435, and a movement module 436. [

The coil panel 431 is formed such that the corners of the inlet 414 are rounded so that the wireless power receiving device 200 (FIG. 2) inserted into the inlet 414 can press the coil panel 431 in the right direction do.

The transfer module 336 may include a rod 437, a receiving channel 438, and an elastic body 439. The rod 437 is connected at one end to the coil panel 431 and the other end is arranged to be inserted into the receiving channel 438. The receiving channel 438 is formed to extend along the width direction W on the first inner surface 415 side of the body 410. The elastic body 439 is, for example, a compression coil spring. The elastic body 439 is disposed so as to surround the rod 437 so that the coil panel 431 is resiliently supported with respect to the first inner surface 415 side.

According to this configuration, the coil panel 431 is arranged to be elastically biased toward the center of the accommodating portion 413 so as to form a width narrower than the width of the inlet 414.

2) is inserted into the accommodating portion 413, the coil panel 431 pressurized by the receiving device 200 is moved to the receiving portion 413 while overcoming the repulsive force of the elastic body 439. At this time, ). Thereby, the receiving apparatus 200 can be held in close contact with the coil panel 431 in the accommodating portion 413. [

Now another type of receptacle type wireless power transmission apparatus 500 will be described with reference to Figs. 9 to 11. Fig.

9 is a perspective view showing a state in which a receptacle type wireless power transmission apparatus 500 according to another embodiment of the present invention is installed in a cup holder CH 'of a vehicle.

Referring to this figure, a cup holder CH 'and a power jack CJ may be provided in the vehicle.

A receptacle type wireless power transmission apparatus 500 using such a cup holder CH 'and a power jack CJ may include a body 510, a transmission unit 550 and a power supply unit 570.

The body 510 may include a mounting portion 520 and a charging portion 530, and may further include a rod portion 590. The mounting portion 520 is a portion formed to be inserted into the recess of the cup holder CH 'which is an object. Since the recess of the cup holder CH 'is cylindrical, the mounting portion 520 can also be formed in a cylindrical shape. The charging unit 530 includes a receiving unit 535 for receiving the wireless power receiving apparatus 200. The receiving portion 535 may be formed to support only the wireless power receiving apparatus 200 partially on the front surface and the entire surface of the wireless power transmitting apparatus 500 on the rear surface. The rod portion 590 connects the mounting portion 520 and the charging portion 530, and may be formed into a rod shape. The rod portion 590 is formed of a curved material so that the position and angle of the charging portion 530 with respect to the mounting portion 520 can be freely changed by a user.

The transmission unit 550 is built in the charging unit 530 and is configured to transmit a wireless power signal to the wireless power receiving apparatus 200 accommodated in the receiving unit 535. [ This transmission unit 550 is substantially the same as the configuration of the transmission unit 130 or 330 of the previous embodiment, and will not be described again.

The power supply unit 570 is connected to the transmission unit 550 and is configured to supply power of the vehicle to the transmission unit 550. The power supply unit 570 may include a connection jack and a cable which are connected to the power jack CJ as in the previous embodiment.

With this configuration, the wireless power transmission apparatus 500 can be easily installed using the cup holder CH 'of the vehicle. Further, the present invention provides an advantage that the user can confirm the display of the wireless power receiving apparatus 200, for example, the mobile communication terminal, even during wireless charging of the wireless power receiving apparatus 200. Further, through the deformation of the rod portion 590, the angle of the wireless power receiving apparatus 200 with respect to the user can be optimized.

The configuration of the mounting portion 520 will be described with reference to Fig.

10 is a perspective view for explaining the state change of the mounting portion 520 of FIG.

Referring to this figure, the mounting portion 520 may include a base portion 521 and a fixing portion 523. [

The base portion 521 is formed in a substantially cylindrical shape and inserted into the cylindrical recess of the cup holder CH '(FIG. 9).

The fixing portion 523 is configured to fix the base portion 521 to the recess of the cup holder CH '. The fixing portion 523 may include a leg 524 that is exposed to the outside through the outer peripheral surface of the base portion 521. A sponge, rubber or the like having a better frictional force than the leg 524 may be additionally provided at the free end of the leg 524. The legs 524 are provided in at least one state and protrude in the outer direction O of the base portion 521 (Fig. 9 (b)) in a state of being accommodated in the base portion 521 ]. In order to move the leg 524 in the outward direction O, the user can rotate the operating portion 526. [

According to such a configuration, even if the size of the recess of the cup holder CH 'differs from one vehicle to another, the base portion 521 can be prevented from being deformed by using the fixing portion 523 while minimizing the basic diameter of the cross section of the base portion 521 And can be fixed to each cup holder CH '.

The above-mentioned fixing unit 523 will be further described with reference to Fig.

11 is a perspective view showing the driving unit 525 of the fixing unit 523 of FIG.

Referring to FIG. 5, the fixing portion 523 may further include a driving portion 525 formed to be engaged with the leg 524 (FIG. 9). The driving unit 525 drives the legs 524 so as to move in the outward direction (O).

The driving section 525 may specifically include an operating section 526, a cam section 527, and a connecting section 529. [

The operating portion 526 is formed on the upper side of the base portion 521 so that the exposed door user can rotate. The cam portion 527 is located inside the base portion 521 and is positioned to engage with the leg 524. The pressing surface 528 of the cam portion 527 serves to press the leg 524 in the outward direction O according to the rotation angle. The connection portion 529 may be disposed in the base portion 521 so as to extend vertically so as to connect the operation portion 526 and the cam portion 527.

With this configuration, when the user rotates the operating portion 526, the force due to the rotation is sheared to the cam portion 527 through the connecting portion 529. [ As the cam portion 527 is rotated by the force, the pressing surface 528 gradually presses the leg 524 in the outward direction (O). While the leg 524 is driven in the outward direction O the free end of the leg 524 is pressed against the inner surface of the recess of the cup holder CH ' .

The receptacle-type wireless power transmission apparatus as described above is not limited to the configuration and operation manner of the embodiments described above. The embodiments may be configured so that all or some of the embodiments may be selectively combined so that various modifications may be made.

For example, although the wireless power transmission apparatus 500 according to the last embodiment has not been described with respect to the light emitting units 170 and 370, such a configuration can also be applied to the wireless power transmission apparatus 500 described above.

The configuration of the transmission coil 3311 referring to Fig. 5 can also be applied to the wireless power transmission apparatuses 400 and 500 according to the following embodiments, and further to the wireless power transmission apparatus 100 according to the first embodiment .

The configuration of the moving module 336 and the reception sensing sensor 343 and the cushioning protection member 380 according to the fourth embodiment may also be applied to the wireless power transmission apparatus 500 according to the last embodiment, And may be applied to the wireless power transmission apparatus 100 as well.

Although the receptacle type wireless power transmission apparatus according to the embodiments of the present invention has been described in the above, the present invention is not limited thereto. It is also possible to use the receptacle type wireless power transmission apparatus while being housed in a pencil case, I want to clarify.

100, 300, 400, 500: Receptacle type wireless power transmission device
110, 310, 410, 510: body 130, 330, 430, 550:
150, 350, 570: power supply unit 170,
380, 480: cushioning protection member 390: user input part

Claims (26)

A body having a hollow receiving portion, the receiving portion being formed in a size capable of accommodating the wireless power receiving device;
A first transmission coil and a second transmission coil, each of which is configured to output a wireless power signal to transmit a wireless power signal to a wireless power receiving apparatus accommodated in the receiving section using an input power source; And a transmission control unit for controlling such that only one of the second transmission coils selectively outputs the radio power signal; And
And a power supply unit configured to supply the input power to the transmission unit,
The transmission control unit,
An object sensing unit configured to sense which of the first transmission coil and the second transmission coil the reception coil of the wireless power receiving apparatus corresponds to; And
And a central control unit for controlling the corresponding one of the first transmission coil and the second transmission coil to operate based on the detection signal of the object detection unit.
The method according to claim 1,
The body is formed in a cylindrical shape,
Wherein the receiving portion is formed in a rectangular parallelepiped-like space.
delete delete delete delete The method according to claim 1,
And a light emitting unit provided on the body,
Wherein the transmission control unit controls the second transmission coil to transmit the wireless power signal by notifying an operation error of the first transmission coil through the light emitting unit when the first transmission coil is abnormal, Transmission device.
8. The method of claim 7,
The light-
A first light emitting unit corresponding to the first transmission coil; And
And a second light emitting portion corresponding to the second transmission coil,
Wherein the transmission control unit deactivates the first light emitting unit and activates the second light emitting unit when the first transmission coil is abnormal.
8. The method of claim 7,
Wherein the transmission control unit controls the light emitting unit to notify misalignment of the wireless power receiving apparatus when the receiving coil of the wireless power receiving apparatus is located on the first transmission coil side.
The method according to claim 1,
Wherein the transmission unit comprises:
A coil panel positioned adjacent to any one of a pair of inner surfaces of the receiving portion, the coil panel including either the first transmission coil or the second transmission coil; And
And a moving module configured to connect the coil panel and the body, the moving module moving the coil panel toward the other one of the pair of inner surfaces.
11. The method of claim 10,
The mobile module comprises:
A rod connected to the coil panel;
A receiving channel formed in the body to receive the rod; And
And an elastic body formed to surround the rod and elastically supporting the coil panel toward the other one of the pair of inner surfaces.
11. The method of claim 10,
The coil panel includes:
A panel body; And
And a pressing portion protruding toward the other one of the pair of inner surfaces of the panel body at an end portion corresponding to an inlet of the receiving portion.
11. The method of claim 10,
The transmission control unit,
A controller configured to control operation of the mobile module,
The mobile module comprises:
A motor installed in the body and having an output shaft coupled with a pinion; And
And a rack coupled to the pinion and coupled to the coil panel.
14. The method of claim 13,
The mobile module comprises:
Further comprising a pressure sensor that is pressed by the wireless power receiving apparatus in accordance with the operation of the motor,
Wherein the transmission control section includes a central control section for stopping the operation of the movement module based on a pressure value sensed by the pressure sensor.
14. The method of claim 13,
Wherein the transmission unit comprises:
Further comprising a reception sensing sensor formed on a bottom surface of the accommodation portion and sensing the wireless power reception device accommodated in the accommodation portion,
Wherein the transmission control section includes a central control section for starting operation of the movement module based on a detection signal of the reception detection sensor.
16. The method of claim 15,
And a cushioning protection member protruding from the receptacle sensing sensor on the bottom surface of the receptacle so as to protect the receptacle sensor from the impact while buffering an impact caused by a collision of the wireless power receiver, Transmission device.
17. The method of claim 16,
A first through hole communicating with the outside of the body is formed on the bottom surface of the accommodating portion,
And a second through hole corresponding to the first through hole is formed in the buffer protecting member when the buffer protecting member covers the first through hole.
The method according to claim 1,
Wherein the transmission unit comprises:
Further comprising a protective coating layer applied to at least one of the first transmission coil and the second transmission coil to protect the transmission coil.
19. The method of claim 18,
Wherein the transmission unit comprises:
Further comprising a core that is compression molded with a magnetic material and has a recess to receive the transmission coil. The method according to claim 1,
Wherein each of the first transmission coil and the second transmission coil includes a pair of sub coils partially arranged to overlap with each other,
The transmission control unit,
And controls at least one of the pair of sub-coils to output the wireless power signal corresponding to the position of the wireless power receiving apparatus.
The method according to claim 1,
Wherein the transmission control unit is located below a bottom surface of the accommodating portion of the body.
The method according to claim 1,
The power supply unit includes:
A cable having one end connected to the transmission unit; And
And a connection jack provided at the other end of the cable and configured to be connected to a power jack of the vehicle. A mounting portion formed to be inserted into a cylindrical recess of the object, and a charging portion formed with a receiving portion for receiving the wireless power receiving device;
A first transmission coil and a second transmission coil, which are built in the charging unit and are configured to output a wireless power signal, respectively, for transmitting a wireless power signal to a wireless power receiving apparatus accommodated in the receiving unit using input power; And a transmission control unit that controls only one of the first transmission coil and the second transmission coil to selectively output the wireless power signal. And
And a power supply unit connected to the transmission unit and configured to supply the input power to the transmission unit,
The transmission control unit,
An object sensing unit configured to sense which of the first transmission coil and the second transmission coil the reception coil of the wireless power receiving apparatus corresponds to; And
And a central control unit for controlling the corresponding one of the first transmission coil and the second transmission coil to operate based on the detection signal of the object detection unit.
24. The method of claim 23,
The mounting portion
A cylindrical base portion; And
And a fixing portion formed at the base portion to fix the base portion to the inner surface of the recess.
25. The method of claim 24,
The fixing unit includes:
A leg that is exposed through the outer circumferential surface of the base and is movable in an outward direction of the base; And
And a driving portion formed to be operatively associated with the leg so that the leg is driven in the outward direction.
24. The method of claim 23,
The body,
And a rod portion connected to the mounting portion and the charging portion and formed to be bent.

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