Wireless charging system and wireless charging device

Abstract

The invention relates to a wireless charging system and a wireless charging device, the wireless charging system comprises the wireless charging device which is applied to an underwater environment to wirelessly charge a moving device in the underwater environment, and the wireless charging device comprises a waterproof base and a wireless transmitting unit; the waterproof base is fixed on a wall surface of the underwater environment and is provided with a surface, and a magnetic attraction piece and a proximity sensor are arranged on the inner side of the surface; the wireless transmitting unit is provided with a wireless transmitting part arranged on the inner side of the surface and a controller which is arranged in the waterproof base and is electrically connected with the wireless transmitting part and the proximity sensor; when the floating device is close to the surface of the waterproof base and is attracted to the magnetic attraction piece, the proximity sensor can sense the floating device and transmit a charging starting signal to the controller, the controller outputs an electric power signal to the wireless transmitting part, the electric power signal is transmitted to the floating device through the wireless transmitting part, and the wireless transmitting part transmits the electric power signal to the wireless transmitting part. And the mobile device is wirelessly charged.

Description

Technical Field

[0001] The present invention relates to a wireless charging system, and in particular to a wireless charging system applied underwater. Background Art

[0002] When wireless charging is performed on a robot fish (or underwater swimming device) moving underwater, the robot fish needs to be accurately positioned when entering a charging position of a wireless charging device located underwater to maximize the wireless charging effect. Therefore, how to design a positioning mechanism for the robot fish on the underwater wireless charging device to prevent the robot fish from drifting away or leaving the charging position due to the push of the water flow during the wireless charging process and to ensure that the robot fish can be wirelessly charged smoothly is a topic worth studying. Summary of the invention

[0003] The object of the present invention is to provide a wireless charging system and a wireless charging device, which can allow a mobile device to be charged by the wireless charging device to be accurately positioned at a charging position of the wireless charging device, so as to ensure that the mobile device can be wirelessly charged smoothly and maximize the benefits of wireless charging.

[0004] The present invention discloses a wireless charging system, which is applied in an underwater environment and comprises a wireless charging device and a swimming device.

[0005] The wireless charging device includes a waterproof base and a wireless transmitting unit. The waterproof base is fixed on a wall of the underwater environment and has a first surface. A first magnetic attraction component and a proximity sensor are arranged on the inner side of the first surface. The wireless transmitting unit has a wireless transmitting part arranged on the inner side of the first surface and adjacent to the first magnetic attraction component and the proximity sensor, and a first controller arranged in the waterproof base and electrically connected to the wireless transmitting part and the proximity sensor.

[0006] The swimming device includes a waterproof shell and a wireless receiving unit; the waterproof shell has a second surface corresponding to the first surface, and a second magnetic attraction component and a positioning component are arranged on the inner side of the second surface; the wireless receiving unit has a wireless receiving part arranged on the inner side of the second surface and adjacent to the second magnetic attraction component and the positioning component, and a second controller and a battery are arranged in the waterproof shell and electrically connected to the wireless receiving part.

[0007] When the second surface of the mobile device is close to the first surface of the wireless charging device so that the second magnetic attraction component and the first magnetic attraction component are attracted to each other and positioned, the wireless receiving part will be aligned with the wireless transmitting part at a distance, and the proximity sensor will be aligned with the positioning component to sense the positioning component and transmit a start charging signal to the first controller, so that the first controller outputs a power signal to the wireless transmitting part to transmit the power signal through the wireless transmitting part, and the wireless receiving part receives the power signal and transmits it to the second controller, so that the second controller transmits the power signal to the battery for storage.

[0008] In some embodiments of the present invention, when the second surface of the mobile device is away from the first surface of the wireless charging device and the second magnetic element is away from the first magnetic element, the proximity sensor of the wireless charging device will not be able to sense the positioning element and transmit a stop charging signal to the first controller, causing the first controller to stop outputting the power signal to the wireless transmitting unit.

[0009] In some embodiments of the present invention, the first magnetic attraction component includes at least two first strong permanent magnets, which are evenly distributed around the wireless transmitting part; the second magnetic attraction component includes at least two second strong permanent magnets, which are evenly distributed around the wireless receiving part, and when the second side of the swimming device approaches the first side of the wireless charging device, the second strong permanent magnet will be attracted by the first strong permanent magnet and pull the second side of the swimming device gradually close to the first side of the wireless charging device until the second strong permanent magnet is aligned with the corresponding first strong permanent magnet and positioned.

[0010] In some embodiments of the present invention, the swimming device further includes a moving unit controlled by the second controller. When the second controller determines that charging is needed according to the power level of the battery, the second controller controls the moving unit to drive the swimming device to swim close to the wireless charging device. The second controller controls the moving unit to reduce the moving speed so that the swimming device slowly swims until the second surface approaches the first surface of the wireless charging device, and the first magnetic attraction component on the first surface and the second magnetic attraction component on the second surface attract each other, so that the second surface of the swimming device is gradually pulled close to the first surface of the wireless charging device, until the first magnetic attraction component is aligned with the second magnetic attraction component to position the swimming device on the waterproof base, and the wireless receiving part on the second surface is aligned with the wireless transmitting part on the first surface, and the proximity sensor is aligned with the positioning component to sense the positioning component; and after receiving the power signal, the second controller controls the moving unit to stop actuating and the swimming device stops swimming during the charging process.

[0011] In some embodiments of the present invention, when the second controller determines that the battery is fully charged, the second controller controls the mobile unit to move quickly so that the swimming device swims quickly to cause the second magnetic attraction component to move away from the first magnetic attraction component.

[0012] In some embodiments of the present invention, when the second magnetic element and the first magnetic element attract each other to position the swimming device on the waterproof base, a straight line distance between the wireless receiving part and the wireless transmitting part is 5 to 10 mm.

[0013] Furthermore, the present invention provides a wireless charging device, which is used in an underwater environment to wirelessly charge a swimming device in the underwater environment, and includes a waterproof base and a wireless transmitting unit; the waterproof base is fixed on a wall of the underwater environment and has a surface, and a magnetic attraction component and a proximity sensor are provided on the inner side of the surface; the wireless transmitting unit has a wireless transmitting part provided on the inner side of the surface and a controller provided in the waterproof base and electrically connected to the wireless transmitting part and the proximity sensor; when the swimming device approaches the surface of the waterproof base and is mutually adsorbed with the magnetic attraction component, the proximity sensor senses the swimming device and transmits a start charging signal to the controller, so that the controller outputs a power signal to the wireless transmitting part, so as to transmit the power signal to the swimming device through the wireless transmitting part, thereby wirelessly charging the swimming device.

[0014] In some embodiments of the present invention, when the mobile device is away from the surface of the wireless charging device, the proximity sensor cannot sense the mobile device and transmits a stop charging signal to the controller, causing the controller to stop outputting the power signal to the wireless transmitter.

[0015] In some embodiments of the present invention, the magnetic attraction component includes at least two strong permanent magnets, and the strong permanent magnets are evenly distributed around the wireless transmitting part.

[0016] The beneficial effect of the present invention is that by arranging the first magnetic element and the proximity sensor next to the wireless transmitting part of the wireless charging device, and arranging the second magnetic element and the positioning element corresponding to the first magnetic element and the proximity sensor respectively next to the wireless receiving part of the mobile device, when the first magnetic element and the second magnetic element are magnetically attracted to each other and positioned, the wireless receiving part and the wireless transmitting part are ensured to be stably aligned, and at the same time, the proximity sensor and the positioning element are aligned to sense the positioning element and transmit the charging start signal to the first controller, so that the first controller outputs the power signal to the wireless transmitting part, so that the wireless receiving part can continuously and stably receive the power signal, thereby ensuring that the mobile device can be wirelessly charged smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1FIG. 4 is a schematic diagram of the appearance and internal components of a wireless charging device of an embodiment of a wireless charging system of the present invention.

[0018] Figure 2 Schematic diagram of the appearance and internal components of the swimming device of this embodiment.

[0019] Figure 3 It is a schematic diagram of the mobile device of this embodiment being positioned on the wireless charging device for wireless charging. DETAILED DESCRIPTION

[0020] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0021] Before the present invention is described in detail, it should be noted that similar components are denoted by the same reference numerals in the following description.

[0022] See also Figures 1 to 3 As shown, an embodiment of the wireless charging system of the present invention is applied in an underwater environment, such as but not limited to a pool, an aquarium or a water area, and includes a wireless charging device 1 and a swimming device 2 that moves in the underwater environment. In this embodiment, the swimming device 2 is a bionic robot fish (also called smart fish) as an example, but is not limited to this.

[0023] like Figure 1 As shown, the wireless charging device 1 mainly includes a waterproof base 11 and a wireless transmitting unit 12. The waterproof base 11 has a fixing surface 110 and a first surface 111 opposite to the fixing surface 110, the fixing surface 110 is fixed on a wall surface (not shown) of the underwater environment, and the inner side of the first surface 111 (i.e., the side facing the inside of the waterproof base 11) is provided with a first magnetic attraction member 13 and a proximity sensor 14 located next to the first magnetic attraction member 1.

[0024] The wireless transmitting unit 12 has a wireless transmitting part 121 disposed on the inner side of the first surface 111 and a first controller 122 disposed in the waterproof base 11 and electrically connected to the wireless transmitting part 121 and the proximity sensor 14, and the first controller 122 receives power provided by an external power source 3. In this embodiment, the first magnetic attraction member 13 includes but is not limited to two first strong permanent magnets 131 and 132, and the first strong permanent magnets 131 and 132 are evenly distributed around the wireless transmitting part 121; the wireless transmitting part 121 in this embodiment is but is not limited to a disc-shaped metal conductor.

[0025] like Figure 2As shown, the swimming device 2 mainly includes a waterproof housing 21 and a wireless receiving unit 22; the waterproof housing 21 has a second surface 211 (indicated by oblique lines) corresponding to the first surface 111 of the waterproof base 11, and the inner side of the second surface 211 is provided with a second magnetic member 23 corresponding to the position of the first magnetic member 13 and a positioning member 24 located next to the second magnetic member 23 and corresponding to the position of the proximity sensor 14. Specifically, as Figure 3 As shown, the first surface 111 is an arc surface and its surface curve is modeled after the second surface 211 , thereby making the first surface 111 and the second surface 211 match each other and can be close to each other.

[0026] The wireless receiving unit 22 has a wireless receiving part 221 disposed on the inner side of the second surface 211, and a second controller 222 and a battery 223 disposed in the waterproof housing 21 and electrically connected to the wireless receiving part 221. In this embodiment, the second magnetic attraction member 23 includes but is not limited to two second strong permanent magnets 231 and 232, which are evenly distributed around the wireless receiving part 221 and are located at positions corresponding to the first strong permanent magnets 131 and 132; in this embodiment, the wireless receiving part 221 is also but is not limited to a disc-shaped metal conductor and its position corresponds to the wireless transmitting part 121; the positioning member 24 can be but is not limited to a metal sheet.

[0027] In addition, if Figure 2 As shown, the swimming device 2 also includes a moving unit 25 controlled by the second controller 222. The moving unit 25 is a mechanical structure that drives a swimming mechanism (such as a fish bait, a tail bait, etc.) of the swimming device 2 to move in the water, and is used to drive the swimming device 2 to move in the water.

[0028] Thus, in this embodiment, when the second controller 222 determines that the swimming device 2 needs to be charged according to the power of the battery 223, the second controller 222 learns the position of the wireless charging device 1 in the underwater environment according to the underwater positioning and navigation mechanism, and controls the mobile unit 25 to drive the swimming device 2 to swim close to the wireless charging device 1, the second controller 222 controls the mobile unit 25 to reduce the moving speed so that the swimming device 2 slowly swims until the second surface 211 is close to the first surface 111 of the wireless charging device 1. In addition, since the underwater positioning and navigation mechanism is a prior art and is not the technical focus of the present invention, it will not be described in detail here.

[0029] At this time, since the magnetic attraction between the first strong permanent magnets 131, 132 on the first surface 111 and the second strong permanent magnets 231, 232 on the second surface 211 is greater than the torque of the slow swimming of the swimming device 2, the second strong permanent magnets 231, 232 on the second surface 211 are attracted by the magnetic force of the first strong permanent magnets 131, 132 on the first surface 111 and pull the second surface 211 of the swimming device 2 gradually close to the first surface 111 of the wireless charging device 1, until the second strong permanent magnets 231, 232 are aligned with the first strong permanent magnets 131, 132 (because the magnetic force is strongest at this position), and the swimming device 2 is positioned on the waterproof base 11, thereby making the wireless receiving part 221 on the second surface 211 and the wireless transmitting part 121 on the first surface 111 aligned with each other, as shown in FIG. Figure 3 and the second magnetic member 23 and the first magnetic member 13 attract each other and the swimming device 2 is positioned on the waterproof base 11, the straight line distance between the wireless receiving unit 221 and the wireless transmitting unit 121 is 5 to 10 mm.

[0030] At the same time, if Figure 3 As shown, the proximity sensor 14 will align with the positioning member 24 to sense (induce) the positioning member 24 and transmit a start charging signal to the first controller 122, so that the first controller 122 outputs a power signal to the wireless transmitter 121 according to the start charging signal, so as to transmit the power signal through the wireless transmitter 121, thereby, the wireless receiving unit 221 can receive the power signal and transmit the power signal to the second controller 222, and the second controller 222 will perform necessary power conversion on the power signal and transmit it to the battery 223 for storage.

[0031] After receiving the power signal, the second controller 222 controls the mobile unit 25 to stop moving, so that the swimming device 2 stops swimming during the charging process, until the second controller 222 determines that the battery 223 is fully charged. The second controller 222 controls the mobile unit 25 to move quickly, so that the torque generated by the rapid swimming of the swimming device 2 is greater than the magnetic attraction between the first magnetic component 13 and the second magnetic component 23. At this time, the second surface 211 of the swimming device 2 is away from the first surface 111 of the wireless charging device 1, which prompts the second magnetic component 23 to move away from the first magnetic component 13. When the second magnetic component 23 moves away from the first magnetic component 13, the magnetic attraction between the two will drop rapidly, and the swimming device 2 can continue to swim and leave the wireless charging device 1. At this time, the proximity sensor 14 of the wireless charging device 1 will not sense the positioning member 24 and transmit a stop charging signal to the first controller 122 . After receiving the stop charging signal, the first controller 122 stops outputting the power signal to the wireless transmitting unit 121 .

[0032] It is worth mentioning that the second magnetic element 23, the wireless receiving unit 221 and the positioning element 24 can also be disposed on the other side of the swimming device 2 opposite to the second side 211. In this way, the swimming device 2 can be charged no matter which side is close to the wireless charging device 1.

[0033] In addition, the first magnetic attraction component 13 and the second magnetic attraction component 23 can also be a single arc-shaped or semi-circular strong permanent magnet correspondingly arranged around the periphery of the wireless transmitting part 121 and the wireless receiving part 221, or more than two strong permanent magnets evenly distributed around the periphery of the wireless transmitting part 121 and the wireless receiving part 221, depending on actual needs.

[0034] Furthermore, it is worth mentioning that in other implementations, the swimming device 2 can also be directly (for example, manually) moved close to the wireless charging device 1 for charging, and does not have to swim to the wireless charging device 1 by itself.

[0035] In summary, the above embodiment arranges the first magnetic member 13 and the proximity sensor 14 next to the wireless transmitting unit 121 of the wireless charging device 1, and arranges the second magnetic member 23 and the positioning member 24 next to the wireless receiving unit 221 of the mobile device 2, the positions of which correspond to the first magnetic member 13 and the proximity sensor 14 respectively, so that when the first magnetic member 13 and the second magnetic member 23 are magnetically attracted to each other and positioned, it can be ensured that the wireless receiving unit 221 and the wireless transmitting unit 121 can be stably aligned. The swimming device 2 is positioned so that it will not be pushed by the water flow and drift away or leave the charging position, and at the same time, the proximity sensor 14 is aligned with the positioning member 24 to sense (induce) the positioning member 24 and transmit the charging start signal to the first controller 122, so that the first controller 122 outputs the power signal to the wireless transmitting unit 121, so that the wireless receiving unit 221 can continuously and stably receive the power signal, thereby ensuring that the swimming device 2 is wirelessly charged smoothly, and truly achieving the effect and purpose of the present invention.

Claims

1. A wireless charging system, applied in an underwater environment; characterized in that: The wireless charging system includes: A wireless charging device, comprising: A waterproof base, which is fixed on a wall of the underwater environment and has a first surface, and a first magnetic attraction member and a proximity sensor are disposed on the inner side of the first surface; and a wireless transmitting unit having a wireless transmitting part disposed on the inner side of the first surface and adjacent to the first magnetic attraction member and the proximity sensor, and a first controller disposed in the waterproof base and electrically connected to the wireless transmitting part and the proximity sensor; and A swimming device, comprising: a waterproof housing having a second surface corresponding to the first surface, A second magnetic attraction member and a positioning member are disposed on the inner side of the second surface; and a wireless receiving unit, which has a wireless receiving part arranged on the inner side of the second surface and adjacent to the second magnetic attraction member and the positioning member, and a second controller and a storage battery arranged in the waterproof housing and electrically connected to the wireless receiving part; wherein When the second surface of the mobile device is close to the first surface of the wireless charging device so that the second magnetic attraction component and the first magnetic attraction component are attracted to each other and positioned, the wireless receiving part will be aligned with the wireless transmitting part at a distance, and the proximity sensor will be aligned with the positioning component to sense the positioning component and transmit a start charging signal to the first controller, so that the first controller outputs a power signal to the wireless transmitting part to transmit the power signal through the wireless transmitting part, and the wireless receiving part receives the power signal and transmits it to the second controller, so that the second controller transmits the power signal to the battery for storage.

2. The wireless charging system according to claim 1, characterized in that: When the second surface of the mobile device is away from the first surface of the wireless charging device and the second magnetic element is away from the first magnetic element, the proximity sensor of the wireless charging device will not be able to sense the positioning element and transmit a stop charging signal to the first controller, so that the first controller stops outputting the power signal to the wireless transmitting unit.

3. The wireless charging system according to claim 1, characterized in that: The first magnetic attraction component includes at least two first strong permanent magnets, which are evenly distributed around the wireless transmitting part; the second magnetic attraction component includes at least two second strong permanent magnets, which are evenly distributed around the wireless receiving part, and when the second side of the swimming device approaches the first side of the wireless charging device, the second strong permanent magnet will be attracted by the first strong permanent magnet and pull the second side of the swimming device gradually close to the first side of the wireless charging device until the second strong permanent magnet is aligned with the corresponding first strong permanent magnet and positioned.

4. The wireless charging system according to claim 1, characterized in that: The swimming device also includes a moving unit controlled by the second controller. When the second controller determines that charging is needed according to the power level of the battery, the second controller controls the moving unit to drive the swimming device to swim close to the wireless charging device. The second controller controls the moving unit to reduce the moving speed so that the swimming device slowly swims until the second side is close to the first side of the wireless charging device, and the first magnetic attraction component on the first side and the second magnetic attraction component on the second side attract each other, so that the second side of the swimming device is gradually pulled close to the first side of the wireless charging device, until the first magnetic attraction component is aligned with the second magnetic attraction component to position the swimming device on the waterproof base, and the wireless receiving part on the second side is aligned with the wireless transmitting part on the first side, and the proximity sensor is aligned with the positioning component to sense the positioning component; and after receiving the power signal, the second controller controls the moving unit to stop actuating and the swimming device stops swimming during the charging process.

5. The wireless charging system according to claim 4, characterized in that: When the second controller determines that the storage battery is fully charged, the second controller controls the moving unit to move quickly so that the swimming device swims quickly to cause the second magnetic attraction component to move away from the first magnetic attraction component.

6. The wireless charging system according to claim 1, characterized in that: When the second magnetic attraction member and the first magnetic attraction member attract each other and the swimming device is positioned on the waterproof base, a straight line distance between the wireless receiving part and the wireless transmitting part is 5 to 10 mm.

7. A wireless charging device, used in an underwater environment to wirelessly charge a swimming device in the underwater environment, characterized in that: The wireless charging device comprises: A waterproof base, which is fixed on a wall of the underwater environment and has a surface, and a magnetic attraction member and a proximity sensor are disposed on the inner side of the surface; and a wireless transmitting unit, which has a wireless transmitting part arranged on the inner side of the surface and a controller arranged in the waterproof base and electrically connected to the wireless transmitting part and the proximity sensor; When the swimming device approaches the surface of the waterproof base and is attracted to the magnetic element, the proximity sensor senses the swimming device and transmits a charging signal to the controller, causing the controller to output a power signal to the wireless transmitter, so that the power signal is transmitted to the swimming device through the wireless transmitter to wirelessly charge the swimming device.

8. The wireless charging device according to claim 7, characterized in that: When the mobile device is away from the surface of the wireless charging device, the proximity sensor cannot sense the mobile device and transmits a stop charging signal to the controller, so that the controller stops outputting the power signal to the wireless transmitting unit.

9. The wireless charging device according to claim 7, characterized in that: The magnetic attraction component comprises at least two strong permanent magnets, and the strong permanent magnets are evenly distributed around the wireless transmitting part.

Images