TW202205785A - Wireless charging device and wireless charging method - Google Patents

Abstract

A wireless charging device is adapted for charging an electronic device having a receiving coil. The wireless charging device has a base, a controller, a driver, a rail and an emitting coil. The base is adapted to accommodate the electronic device. The controller is disposed in the base. The driver is disposed in the base and coupled to the controller. The rail is disposed in the base. The emitting coil is movably disposed at the rail and linked to the driver. When the electronic device is accommodated in the base, the driver is driven by the controller to move the emitting coil along the rail to a position corresponding to the receiving coil of the electronic device so that the emitting coil charges the receiving coil of the electronic device.

Description

Wireless charging device and wireless charging method

The present disclosure relates to a charging device and a charging method, and more particularly, to a wireless charging device and a wireless charging method.

When using wireless charging, the position of the coil to be charged needs to be aligned with the position of the power supply coil. If the positions of the two coils do not correspond, there will be a problem of low charging efficiency. Therefore, the current wireless vertical charging bases are almost always bound to a specific mobile phone brand, or even a model, and cannot be used for other brands or models of mobile phones.

The present disclosure provides a wireless charging device, which can efficiently charge electronic devices with receiving coils in different positions.

A wireless charging device of the present disclosure is suitable for charging an electronic device, wherein the electronic device includes a receiving coil, and the wireless charging device includes a base, a controller, a driving member, a rail and a transmitting coil. The base body is suitable for accommodating electronic devices. The controller is arranged in the base. The driving element is arranged in the base and coupled to the controller. The track is arranged in the seat body. The transmitting coil is slidably arranged on the track and is linked with the driving member, wherein when the electronic device is accommodated in the base, the controller activates the driving member to move the transmitting coil along the track to a position corresponding to the receiving coil of the electronic device , to charge the receiving coil of the electronic device.

Based on the above, the wireless charging device of the present disclosure is slidably disposed on the track by the transmitting coil. When the electronic device is placed on the base, the controller activates the driving member to move the transmitting coil along the track to a position corresponding to the electronic device. Position of the receiver coil to charge the receiver coil. In this way, the transmitting coil of the wireless charging device of the present disclosure can be aligned with the receiving coils located in different positions, so as to provide good charging efficiency.

FIG. 1 is a schematic diagram of a wireless charging device according to an embodiment of the present disclosure. FIG. 2A is a schematic perspective view of the transmitter coil of the wireless charging device of FIG. 1 at the starting point. FIG. 2B is a schematic perspective view of the transmitting coil of the wireless charging device of FIG. 1 at the end point. FIG. 3A is a schematic diagram of another viewing angle of FIG. 2A . FIG. 3B is a schematic diagram of another viewing angle of FIG. 2B . FIG. 4A is a schematic side view of FIG. 2A . Figure 4B is a schematic side view of Figure 2B. It should be noted that the bases of FIGS. 2A to 4B are shown in dashed lines to clearly show the internal components.

Please refer to FIGS. 1 to 4B , the wireless charging device 100 of this embodiment is suitable for charging an electronic device 10 ( FIG. 4A ), wherein the electronic device 10 includes a receiving coil 12 ( FIG. 4A ) and a battery (not shown). ). The receiving coil 12 transmits the received electricity to a battery (not shown) for storage. The electronic device 10 is, for example, a mobile phone or a tablet computer, but the type of the electronic device 10 is not limited thereto.

As shown in FIG. 2A , the wireless charging device 100 includes a base 110 , a controller 120 , a driving member 130 , a track 140 and a transmitting coil 150 . In this embodiment, the base body 110 is used for accommodating the electronic device 10 , and the base body 110 includes a bottom portion 112 , a back portion 114 and a convex portion 116 . The back 114 is located obliquely above the bottom 112 , the convex portion 116 protrudes outward from the back 114 to present a platform shape, and the electronic device 10 is suitable for being placed on the convex portion 116 and supported on the back 114 . In this way, the base body 110 can not only serve as a stand for making the electronic device 10 stand up, but also have a charging function.

It should be noted that, in this embodiment, the electronic device 10 is a mobile phone as an example, the size of the base body 110 and the shape of the back 114 correspond to the mobile phone to be charged, and present a narrow rectangle. In other embodiments, the size and shape of the base body 110 are not limited thereto.

As shown in FIG. 2A , the controller 120 is disposed in the base body 110 . The driving member 130 is disposed in the base body 110 and coupled to the controller 120 . In this embodiment, corresponding to the small size of the base body 110 , the driving member 130 is a micro motor, so that the overall volume is not too large. Of course, the type of the driving member 130 is not limited thereto.

The rail 140 is disposed in the base body 110 , and the rail 140 extends along a longitudinal direction D1 of the back 114 of the base body 110 . In this embodiment, the rail 140 includes two parallel guide rods 142 , but the rail 140 can also be defined by the inner space of the base body 110 , and the type of the rail 140 is not limited by this. In other embodiments, if the space of the back 114 of the seat body 110 is large enough, the rails can also be multiple and multi-axis. In addition, at least one track may extend along the long-side direction D (ie, the short-side direction of the back 114 of the seat body 110 ) 1 perpendicular to the back 114 of the seat body 110 , so that the track 140 can allow the object slid on it to have The ability to move vertically and horizontally, but the form of the track 140 is not so limited.

The transmitting coil 150 is slidably disposed on the rail 140 . Specifically, the wireless charging device 100 further includes a transmitting coil carrier 155 carrying the transmitting coil 150 . The transmitting coil carrier 155 is sleeved on the two guide rods 142 so that the transmitting coil carrier 155 can be slidably mounted on the rail 140 . Above, the transmitting coil 150 disposed on the transmitting coil carrier 155 can also be slid on the track 140 along with the transmitting coil carrier 155 .

The transmitting coil 150 is linked with the driving member 130 . Specifically, the wireless charging device 100 further includes a transmission module 160 which is linked with the driving member 130 , and the transmitting coil 150 is linked with the transmission module 160 . The transmission module 160 includes, for example, at least one of a gear, a rack and a connecting rod. Specifically, in this embodiment, the transmission module 160 includes a first gear 162 , a second gear 164 and a connecting rod 166 . The first gear 162 is coaxial with the driving member 130 and connected to the driving member 130 , and the second gear 162 is coaxial with the driving member 130 . The gear 164 meshes with the first gear 162 . As shown in FIG. 2A , one end of the connecting rod 166 is pivotally connected to the second gear 164 . As shown in FIG. 3A, the other end of the connecting rod 166 is pivotally connected to the transmitting coil carrier 155, so that the driving member 130 drives the first gear 162 to rotate, the first gear 162 drives the second gear 164 to rotate, and the second gear 164 drives the connecting The rod 166 is rotated to move the transmitting coil carrier 155 up and down along the longitudinal direction D of the back 114 of the base body 110 . Of course, the type of the transmission module 160 is not limited thereto.

In this way, in this embodiment, when the electronic device 10 is placed on the base 110 , the controller 120 can activate the driving member 130 to move the transmitting coil 150 on the transmitting coil carrier 155 along the track 140 to a position corresponding to The position of the receiving coil 12 of the electronic device 10 to charge the receiving coil 12 .

Therefore, as shown in FIGS. 4A and 4B , even if the receiving coils 12 of the electronic devices 10 and 10a are located at different positions, the wireless charging device 100 of the present embodiment can still be applied to these electronic devices 10 and 10 with the receiving coils 12 located at different positions. 10a. The wireless charging device 100 can move the transmitting coil 150 to the optimal position as shown in FIG. 4A and FIG. 4B according to the positions of the receiving coils 12 of the electronic devices 10 and 10a or according to the charging efficiency value of the transmitting coil 150 at different positions. And can provide the best charging efficiency.

Specifically, the wireless charging device 100 further includes a communication unit 180 disposed on the base body 110 and coupled to the controller 120 . The communication unit 180 is, for example, a Bluetooth unit, but not limited thereto. The communication unit 180 can be connected in communication with a component (not shown) on the electronic device 10 for detecting the charging efficiency, and is used for receiving a plurality of charges corresponding to the electronic device 10 when the transmitting coil 150 is at a plurality of positions on the track 140 . Efficiency value. The communication unit 180 can transmit these charging efficiency values to the controller 120 . The controller 120 activates the driving member 130 to move the transmitting coil 150 to the position corresponding to the highest charging efficiency value. Specifically, the position corresponding to the highest one of these charging efficiency values corresponds to the position of the receiving coil 12 of the electronic device 10 .

In some embodiments, the wireless charging device 100 may also include a detection unit 185 disposed on the transmitting coil carrier 155 and coupled to the controller 120 . The detection unit 185 may be a near field communication (Near Field Communication, NFC) coil or other special coils, but the type of the detection unit 185 is not limited thereto. The wireless charging device 100 uses the detection unit 185 to detect the load (eg, magnetic inductance) of the transmitting coil 150 at each height, obtains a plurality of loads, and transmits the information of the loads to the controller 120 . Since the height at which the maximum value of these loads is located corresponds to the position of the receiving coil 12 of the electronic device 10 . The controller 120 activates the driving member 130 to move the transmitting coil 150 to the position corresponding to the highest one of these loads.

It should be noted that, since the functions of the communication unit 180 and the detection unit 185 are similar, in other embodiments, the communication unit 180 and the detection unit 185 may be configured in one configuration.

In addition, in this embodiment, the wireless charging device 100 further includes a sensor 170 , which is disposed on the base body 110 and is electrically connected to the controller 120 , and the electronic device 10 further includes a sensor to be sensed corresponding to the sensor 170 . device 14. The sensor 170 is used for sensing the sensor 14 of the electronic device 10 placed on the base 110 .

Specifically, as shown in FIG. 4A , in this embodiment, the sensor 170 is, for example, a radio frequency identification (Radio Frequency IDentification, RFID) sensor 170 , and the sensor 14 is, for example, an RFID electronic tag. When the electronic device 10 is placed on the base 110 , the sensor 170 of the wireless charging device 100 senses the sensor 14 (RFID electronic tag) of the electronic device 10 and transmits the signal to the controller 120 to control the The controller 120 receives the signal that the electronic device 10 is in position, and the controller 120 can activate the driving element 130 according to the signal sensed by the sensor 170, and move the transmitting coil 150 from a starting point ( FIG. 2A ) to an ending point ( Figure 2B) The position corresponding to the highest of the multiple charging efficiency values.

Alternatively, as shown in FIG. 4B , in this embodiment, the sensor 170a is a magnetic sensor, and the sensor 14a is a magnetic element. When the electronic device 10a is placed on the base 110, the sensor 170a (magnetic sensor) of the wireless charging device 100 senses the sensor 14a (magnetic element) of the electronic device 10a, and transmits the signal to the controller 120, so that the controller 120 receives the signal that the electronic device 10a is in place, the controller 120 can activate the driving element 130 according to the signal sensed by the sensor 170a, and move the transmitting coil 150 to the same point (FIG. 2A). ) to an end point ( FIG. 2B ) is the position corresponding to the highest of the multiple charging efficiency values.

Of course, the types of the sensors 170, 170a and the sensors 14, 14a are not limited thereto. In other embodiments, the wireless charging device 100 can also obtain information that the electronic device 10 is in place by means of a mechanism. For example, when the electronic device 10 is placed on the base 110 , a button (not shown) will be pressed, and when the button is pressed, a trigger signal may be transmitted to the controller 120 to trigger the driving element 130 .

FIG. 5 is a schematic diagram of a wireless charging method according to an embodiment of the present disclosure. Please refer to FIG. 5 , the wireless charging device 100 is suitable for charging the electronic device 10 by using the wireless charging method 200 , but not limited thereto. The wireless charging method 200 includes the following steps.

First, the sensor 170 senses an electronic device 10 (step 210). In this embodiment, the sensor 170 of the wireless charging device 100 is suitable for sensing the sensor 14 of the electronic device 10 , and the sensing method may be magnetic sensing, RFID sensing, or a matching mechanism. Trigger the button to sense.

Next, the controller 120 activates the driving member 130 to move the transmitting coil 150 from a starting point to an end point far from the starting point (step 220 ). In this embodiment, the controller 120 can move the transmitter coil 150 from the starting point shown in FIG. 2A to the end point shown in FIG. 2B , and can also make the transmitter coil 150 move from the end point back to the start point.

Next, the communication unit 180 obtains a plurality of charging efficiency values of the electronic device 10 when the transmitting coil 150 is located at a plurality of positions between the start point and the end point (step 230 ). During this process, the transmitting coil 150 can continue to charge the receiving coil 12 of the electronic device 10, and the controller 120 can obtain the charging efficiency value of the transmitting coil 150 at different positions between the starting point and the ending point. Because when the transmitting coil 150 of the wireless charging device 100 moves to a position corresponding to the receiving coil 12 of the electronic device 10 , there will be a better charging efficiency value. Therefore, the controller 120 can infer the position of the receiving coil 12 of the electronic device 10 according to the charging efficiency value.

In one embodiment, the step 230 may also be that the detection unit 185 detects the load (eg, magnetic inductance) of the transmitting coil 150 at each height to obtain a plurality of loads. The detection unit 185 transmits the information of these loads to the controller 120 . Since the height at which the maximum value of these loads is located corresponds to the position of the receiving coil 12 of the electronic device 10 . The controller 120 can infer the position of the receiving coil 12 of the electronic device 10 according to the position of the maximum value of the load.

Finally, the driving member 130 moves the transmitting coil 150 to the position corresponding to the highest value of the charging efficiency, and charges the receiving coil 12 of the electronic device 10 (step 240 ). In this way, the transmitting coil 150 of the wireless charging device 100 can provide the best charging efficiency.

To sum up, the wireless charging device of the present disclosure is slidably disposed on the track by the transmitting coil. When the electronic device is placed on the base, the controller activates the driving member to move the transmitting coil along the track to a position corresponding to the electronic device. The position of the receiver coil of the device to charge the receiver coil. In this way, the transmitting coil of the wireless charging device of the present disclosure can be aligned with the receiving coils located in different positions, so as to provide good charging efficiency.

D1: Long side direction 10, 10a: Electronic devices 12: Receive coil 14: Sensored 100: Wireless charging device 110: seat body 112: Bottom 114: Back 116: convex part 120: Controller 130:Driver 140: Orbit 142: Guide rod 150: transmitter coil 155: Launch Coil Vehicle 160: Transmission module 162: First gear 164: Second gear 166: connecting rod 170, 170a: Sensors 180: Communication unit 185: Detection unit 200: Wireless Charging Methods 210~240: Steps

FIG. 1 is a schematic diagram of a wireless charging device according to an embodiment of the present disclosure. FIG. 2A is a schematic perspective view of the transmitter coil of the wireless charging device of FIG. 1 at the starting point. FIG. 2B is a schematic perspective view of the transmitting coil of the wireless charging device of FIG. 1 at the end point. FIG. 3A is a schematic diagram of another viewing angle of FIG. 2A . FIG. 3B is a schematic diagram of another viewing angle of FIG. 2B . FIG. 4A is a schematic side view of FIG. 2A . Figure 4B is a schematic side view of Figure 2B. FIG. 5 is a schematic diagram of a wireless charging method according to an embodiment of the present disclosure.

D1: Long side direction

100: Wireless charging device

110: seat body

112: Bottom

114: Back

116: convex part

120: Controller

130:Driver

140: Orbit

142: Guide rod

150: transmitter coil

155: Launch Coil Vehicle

160: Transmission module

162: First gear

164: Second gear

166: connecting rod

170: Sensor

180: Communication unit

185: Detection unit

Claims (11)

A wireless charging device suitable for charging an electronic device, wherein the electronic device includes a receiving coil, and the wireless charging device includes: a body suitable for accommodating the electronic device; a controller, arranged in the seat body; a driving element, disposed in the base body and coupled to the controller; a track disposed within the seat body; and A transmitting coil is slidably disposed on the track and is linked with the driving member, wherein when the electronic device is accommodated in the base, the controller activates the driving member to make the transmitting coil move along the track to a position corresponding to the receiving coil of the electronic device to charge the receiving coil of the electronic device. The wireless charging device according to claim 1, further comprising: A transmission module is linked with the driving element and the transmitting coil. The wireless charging device as claimed in claim 2, wherein the transmission module comprises a first gear, a second gear and a connecting rod, the first gear is coaxial with the driving member and is connected to the driving member, and the second gear is connected to the driving member. The gear is engaged with the first gear, one end of the connecting rod is pivotally connected to the second gear, and the other end of the connecting rod is pivotally connected to the transmitting coil. The wireless charging device according to claim 1, wherein the track extends along a long side direction of a back of the base body. The wireless charging device according to claim 1, further comprising: a sensor disposed on the base and electrically connected to the controller, the sensor is used for sensing whether the electronic device is accommodated on the base, and activates the driving element accordingly to make the transmitting coil move along this track. The wireless charging device of claim 5, wherein the electronic device further comprises an electronic tag, the sensor is adapted to sense the electronic tag and transmit a signal to the controller, and the controller is based on the sensor sensed The detected signal activates the driver. The wireless charging device of claim 5, wherein the sensor is a magnetic sensor, the electronic device further comprises a magnetic element, the magnetic sensor is suitable for sensing the magnetic element and transmitting a signal to the magnetic element The controller activates the driving element according to the signal sensed by the magnetic sensor. The wireless charging device according to claim 1, further comprising: a communication unit disposed on the base and coupled to the controller, the communication unit is used for receiving a plurality of charging efficiency values of the electronic device at a plurality of positions of the transmitting coil on the track and transmitting to the controller, The controller controls the transmitting coil to move to a position corresponding to the highest one of the charging efficiency values. The wireless charging device as claimed in claim 8, wherein the position corresponding to the highest one of the charging efficiency values corresponds to the position of the receiving coil of the electronic device. The wireless charging device according to claim 1, further comprising: a detection unit, disposed on the base and coupled to the controller, the communication unit is used for receiving a plurality of charging efficiency values of the electronic device on a plurality of positions of the transmitting coil on the track and transmitting to the controller , the controller controls the transmitting coil to move to the position corresponding to the highest value of the charging efficiency values. The wireless charging device according to claim 1, further comprising: A transmitting coil carrier carries the transmitting coil, the track includes two parallel guide rods, and the transmitting coil carrier is sleeved on the two guide rods.

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