Wireless charging system and charging station thereof

Abstract

A wireless charging system and a charging station thereof are disclosed. The wireless charging system includes a power transmitting module and a power receiving module. The power transmitting module includes a first charging head and a plurality of first coils. The first coils are located on the first charging head and are connected in parallel with each other. The power receiving module includes a second charging head and a plurality of second coils. The second coils are located on the second charging head and are connected in parallel with each other. When the first charging head is docked with the second charging head, each first coil faces and induces one second coil. Thus, the above architecture can reduce the size of the power supply coils, without the need for engineering to bury the power supply coils in the ground, thereby reducing costs and working hours, and improving the willingness of users to install.

Description

TECHNICAL FIELD

[0001] The present application relates to a wireless charging system, in particular, a wireless charging system for charging through coils. BACKGROUND

[0002] In recent years, wireless charging technology has been widely applied to charging work of electric vehicles. For example, when an electric vehicle is parked at a charging station, the power supply coil of the charging station and the receiving coil of the electric vehicle generate induction to provide the required power.

[0003] However, in order to quickly provide a large amount of power, the power supply coil of the charging station inevitably accompanies a large volume, thereby deriving problems such as occupying space and hindering aesthetics. Therefore, the industry usually buries the power supply coil in the ground of the parking area to perform charging work on the electric vehicle above.

[0004] However, the engineering of installing a large volume of power supply coil is quite complex and time-consuming. Not only does it need to be performed on the construction engineering such as digging, wiring and restoring, but also the large amount of noise generated is unacceptable. Therefore, it is necessary to overcome the difficulties to obtain the construction permission of the management unit.

[0005] Therefore, it is an important research and development subject to effectively solve the above-mentioned inconvenience and defects. Therefore, it is an important research and development subject to effectively solve the above-mentioned inconvenience and defects. SUMMARY

[0006] An object of the present application is to provide a wireless charging system and a charging station thereof to solve the difficulties mentioned in the prior art.

[0007] An embodiment of the present application provides a wireless charging system. The wireless charging system includes a power transmitting module and a power receiving module. The power transmitting module includes a first charging head and a plurality of first coils. The first coils are located on the first charging head and are connected in parallel with each other. The power receiving module includes a second charging head and a plurality of second coils. The second coils are located on the second charging head and are connected in parallel with each other. When the first charging head is docked with the second charging head, each first coil faces and induces one of the second coils.

[0008] According to one or more embodiments of the present application, the first charging head has a first surface, the first coils are arranged in sequence on the first surface, and the axes of the first coils are parallel to each other. The second charging head has a second surface, the second coils are arranged in sequence on the second surface, and the axes of the second coils are parallel to each other. In this way, when the first charging head is docked with the second charging head, the axis of each first coil is coaxial with the axis of one of the second coils.

[0009] According to one or more embodiments of the present application, the first coils are arranged in the first charging head and have the same axis. The second coils are arranged in the second charging head and have the same axis. Thus, when the first charging head is docked with the second charging head, the first coils are between the second coils and have the same axis with the second coils.

[0010] According to one or more embodiments of the present application, the second charging head includes a slot. The second coils are located in the second charging head and the slot is between the second coils. The first charging head includes a plug, the first coils are located in the plug and have the same axis. Thus, when the first charging head is docked with the second charging head, the plug is inserted into the slot so that each first coil has the same axis with a corresponding second coil.

[0011] According to one or more embodiments of the present application, the second coils respectively face two opposite inner surfaces of the slot. The first coils respectively face two opposite outer surfaces of the plug.

[0012] According to one or more embodiments of the present application, the second charging head includes a plurality of slots and the slots are sequentially arranged on a surface of the second charging head. Two opposite inner surfaces of each slot respectively accommodate one of the second coils. The first charging head includes a plurality of plugs, each plug accommodates one of the first coils. Thus, when the plugs are respectively inserted into the slots, each first coil is between two second coils.

[0013] According to one or more embodiments of the present application, the second charging head includes a plurality of slots and the slots are sequentially arranged on a surface of the second charging head. Two opposite inner surfaces of each slot respectively accommodate one of the second coils. The first charging head includes a plurality of plugs, one of the first coils is arranged on one side of each plug. Thus, when the plugs are respectively inserted into the slots, the second coil in each slot faces the first coil on the corresponding plug.

[0014] According to one or more embodiments of the present application, there is a separation entity between two adjacent first coils or between two adjacent second coils.

[0015] According to one or more embodiments of the present application, the first charging head includes a first housing. The first housing has a first surface. The first coils are respectively fixed in the first housing and the axes of the first coils are perpendicular to the first surface. The second charging head includes a second housing and a long recess. The second housing has a second surface. The long recess is formed on the second surface to accommodate the first housing. The second coils are respectively fixed in the second housing and the axes of the second coils are perpendicular to the second surface.

[0016] According to one or more embodiments of the present application, the first charging head includes a plurality of first recesses. The first recesses are located on the first surface of the first housing, and each of the first coils is embedded in the first housing and faces one of the first recesses. The second charging head also includes a plurality of second recesses, and the second recesses are located in the elongated groove. Each of the second coils is embedded in the second housing and faces one of the second recesses.

[0017] One embodiment of the present application provides a charging station. The charging station includes a base and a plurality of first coils. The base includes a charging head. The first coils are located on the charging head and are connected in parallel with each other to face and induct a second coil of a mobile device.

[0018] According to one or more embodiments of the present application, the first coils are sequentially arranged in the charging head, and the axes of the first coils are parallel to each other.

[0019] According to one or more embodiments of the present application, the first coils are sequentially arranged in the charging head, and the axes of the first coils are parallel to each other.

[0020] According to one or more embodiments of the present application, the charging station further includes a receiving slot. The receiving slot is located on the base, such that the charging head is replaceably located in the receiving slot.

[0021] According to one or more embodiments of the present application, the base further includes a first portion, a second portion, and a moving module. The charging head is located on the first portion, and the moving module connects the first portion and the second portion to drive the charging head to move relative to the second portion.

[0022] Thus, through the above-mentioned architecture of each embodiment, the present application can reduce the size of the power supply coil, can not need to adopt the engineering of covering the ground, thereby reducing the cost and working hours, and improving the installation willingness of the user.

[0023] The above merely describes the problems to be solved by the present application, the technical means for solving the problems, and the effects thereof. The specific details of the present application will be described in the embodiments and the related drawings below. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to make the above and other objects, features, advantages and embodiments of the present application more apparent, the following describes the accompanying drawings:

[0025] Figure 1 FIG. 1 is a schematic diagram of a wireless charging system according to one embodiment of the present application;

[0026] Figure 2 FIG. 2 is an electronic block diagram of the wireless charging system of FIG. 1; Figure 1

[0027] Figure 3A ​A schematic view of the first charging head and the second charging head of an embodiment of the present application;

[0028] Figure 3B A schematic view of the first charging head and the second charging head of an embodiment of the present application; Figure 3A A schematic view of the first charging head and the second charging head of an embodiment of the present application;

[0029] Figure 4A A schematic view of the first charging head and the second charging head of an embodiment of the present application;

[0030] Figure 4B A schematic view of the first charging head and the second charging head of an embodiment of the present application; Figure 4A A schematic view of the first charging head and the second charging head of an embodiment of the present application;

[0031] Figure 4C A schematic view of the first charging head and the second charging head of an embodiment of the present application; Figure 4A A schematic view of the first charging head and the second charging head of an embodiment of the present application;

[0032] Figure 5A A schematic view of the first charging head and the second charging head of an embodiment of the present application;

[0033] Figure 5B A schematic view of the first charging head and the second charging head of an embodiment of the present application; Figure 5A A schematic view of the first charging head and the second charging head of an embodiment of the present application;

[0034] Figure 6 A schematic view of the first charging head and the second charging head of an embodiment of the present application;

[0035] Figure 7A A schematic view of the first charging head and the second charging head of an embodiment of the present application;

[0036] Figure 7B A schematic view of the first charging head and the second charging head of an embodiment of the present application; Figure 7A A schematic view of the first charging head and the second charging head of an embodiment of the present application;

[0037] Figure 7C A schematic view of the first charging head and the second charging head of an embodiment of the present application; Figure 7A A schematic view of the first charging head and the second charging head of an embodiment of the present application;

[0038] Figure 8 A schematic view of the first charging head and the second charging head of an embodiment of the present application;

[0039] Figure 9 A schematic view of the first charging head and the second charging head of an embodiment of the present application.

[0040]

Symbol Description

[0041] 10, 11: wireless charging system

[0042] 100: power transmitting module

[0043] 200, 201: charging station

[0044] 210: base

[0045] 220: base

[0046] 230: support

[0047] 240: moving module

[0048] 241: slide post

[0049] 242: slide way

[0050] 250: detector

[0051] 260: power motor

[0052] 270: accommodating groove

[0053] 280: first charging head

[0054] 281: first housing

[0055] 282: first surface

[0056] 300, 301, 302, 303: first charging head

[0057] 310: plug-in

[0058] 320: first housing

[0059] 320S: outer side

[0060] 321: first recessed area

[0061] 322: bottom surface

[0062] 323: first housing

[0063] 324: first surface

[0064] 325: first housing

[0065] 330: first recess

[0066] 330B: bottom surface

[0067] 340: first coil

[0068] 350: control circuit

[0069] 410: fixed frame

[0070] 420: slide rail piece

[0071] 430: folding module

[0072] 431: first arm body

[0073] 431S: strip-shaped groove

[0074] 432: second arm body

[0075] 433: third arm body

[0076] 440: connecting rib

[0077] 500: power receiving module

[0078] 600: mobile device

[0079] 700: second charging head

[0080] 710: second housing

[0081] 711: second surface

[0082] 800, 801, 802, 803: second charging head

[0083] 810: second housing

[0084] 811: single slot

[0085] 812: inner face

[0086] 813: second surface

[0087] 820: second housing

[0088] 821: second recessed area

[0089] 822: slot

[0090] 823: bottom face

[0091] 824: second surface

[0092] 825: bottom face

[0093] 830: second housing

[0094] 831: elongated groove

[0095] 832: bottom face

[0096] 833: second recess

[0097] 833B: bottom face

[0098] 834: second surface

[0099] 840: second coil

[0100] 900: power storage device

[0101] A: axis

[0102] P: Power supply

[0103] T1~T5: Pivot

[0104] W: Wall

[0105] X, Y, Z: Axes Detailed Implementation

[0106] Several embodiments of the present invention will be disclosed below with reference to the accompanying drawings. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details are not intended to limit the invention. That is, these practical details are not essential in the various embodiments of the invention. Furthermore, for the sake of simplicity, some known and conventional structures and elements will be illustrated in the drawings in a simple schematic manner.

[0107] Figure 1 This is a schematic diagram of a wireless charging system 10 according to an embodiment of the present invention. Figure 2 for Figure 1 Electronic block diagram of wireless charging system 10. (See diagram below.) Figures 1-2 As shown, the wireless charging system 10 includes a power transmitting module 100 and a power receiving module 500. The power transmitting module 100 includes a first charging head 280, a plurality of first coils 340, and a control circuit 350. The first coils 340 are spaced apart on the first charging head 280 and are connected in parallel with each other. The control circuit 350 is electrically connected to the first coils 340 and connected to an external power source P to convert the power from the power source P and transmit it to the first coils 340. The power receiving module 500 includes a second charging head 700, a plurality of second coils 840, and a power storage device 900. The second coils 840 are located on the second charging head 700 and are connected in parallel with each other. The power storage device 900 is electrically connected to the second coils 840.

[0108] Thus, when the first charging head 280 is connected to the second charging head 700, the first coil 340 can face and sense these second coils 840 respectively, thereby causing the second coils 840 to generate and send power to the power storage device 900 for charging, thereby charging the power storage device 900.

[0109] For example, the wireless charging system 10 further includes a charging station 200 and a mobile device 600. The charging station 200 includes a base 210 and a receiving slot 270. The receiving slot 270 is located on the base 210 and is used to receive a first charging head 280, and the first charging head 280 is replaceably located within the receiving slot 270. In other embodiments, the first charging head 280 may also be fixed within the receiving slot 270. The mobile device 600 is an electric vehicle, and the second charging head 700 may be embedded in the rear compartment of the electric vehicle or fixed outside the rear compartment; however, the invention is not limited thereto.

[0110] It needs to be defined that the first coil 340 and the second coil 840 are respectively spiral or concentric circles, each surrounding an opening with an axis A. The first coil 340 and the second coil 840, which face each other, overlap each other and have a coaxial axis A.

[0111] Figure 3A This is a schematic diagram of a first charging head 280 and a second charging head 700 according to an embodiment of the present invention. Figure 3B for Figure 3A A schematic diagram showing the first charging head 280 and the second charging head 700 being connected. (See diagram below.) Figure 3A and Figure 3B As shown, the first charging head 280 has a first housing 281. The first housing 281 has an elongated first surface 282. First coils 340 are sequentially arranged near the first surface 282 of the first housing 281. For example, the first surface 282 extends along a first extending direction (e.g., the X-axis direction), and the first coils 340 are arranged in a single row near the first surface 282 along the first extending direction (e.g., the X-axis direction), with their axes A parallel to each other. However, the invention is not limited to this arrangement. The axis A of each first coil 340 is perpendicular to the first surface 282. The second charging head 700 has a second housing 710. The second housing 710 has an elongated second surface 711. Second coils 840 are sequentially arranged near the second surface 711 of the second housing 710. For example, the second surface 711 extends along a second extending direction (such as the X-axis direction), and the second coils 840 are arranged in a single row along the second extending direction (such as the X-axis direction) on the second surface 711. However, the present invention is not limited to this arrangement. The axis A of each second coil 840 is perpendicular to the second surface 711.

[0112] It is to be understood that, in the present embodiment, the first coils 340 arranged in sequence on the first surface 282 means that the first coils 340 are arranged in the internal space of the first housing 281 and contact or are close to the corresponding positions of the first surface 282, or are arranged in the first housing 281 and contact or are close to the corresponding positions of the first surface 282 of the first housing 281. The second coils 840 arranged in sequence on the second surface 711 means that the second coils 840 are arranged in the internal space of the second housing 710 and contact or are close to the corresponding positions of the second surface 711, or are arranged in the second housing 710 and contact or are close to the corresponding positions of the second surface 711 of the second housing 710.

[0113] As shown in FIG. 1, when the first charging head 280 is docked with the second charging head 700, the first surface 282 of the first housing 281 faces the second surface 711 of the second housing 710, and the first surface 282 of the first housing 281 is spaced apart from the second surface 711 of the second housing 710, and each first coil 340 is aligned with one second coil 840, and the second coils 840 and the first coils 340 are overlapped with each other and are spaced apart, and each set of aligned first coils 340 and second coils 840 has a common axis A. Figure 3B In an embodiment, if the first coils 340 are buried inside the first surface 282 and the second coils 840 are buried inside the second surface 711, the first surface 282 can also be in close contact with the second surface 711. In an embodiment, the second housing 710 can be fixed to the first housing 281 by magnetic attraction, clamping or other fixing methods, so that the first coils 340 are aligned with the second coils 840 to improve the charging efficiency. In an embodiment, the wireless charging system of the present application can use magnetic resonance charging technology to meet the demand of high-power vehicle charging. For the magnetic resonance charging technology, a certain distance needs to be maintained between the first coils 340 and the second coils 840 to provide better charging efficiency. If the first coils 340 are too close to the second coils 840, it will lead to a decrease in charging efficiency. The distance of the first coils 340 to the first surface 282 and the distance of the second coils 840 to the second surface 711 can be adjusted according to this distance.

[0114]

[0115] FIG. 1 is a schematic view of the first charging head 300 and the second charging head 800 of an embodiment of the present application from one perspective. Figure 4A FIG. 2 is a schematic view of the first charging head 300 and the second charging head 800 of Figure 4B FIG. 3 is a schematic view of the first charging head 300 and the second charging head 800 of Figure 4A from another perspective. Figure 4C FIG. 4 is a schematic view of the first charging head 300 and the second charging head 800 of Figure 4A from another perspective. Figure 4A FIG. 5 is a schematic view of the first charging head 300 and the second charging head 800 ofFigure 4B As shown, the present embodiment is substantially the same as the above-mentioned embodiments, except that the second charging head 800 comprises a single slot 811. The single slot 811 is formed on a second surface 813 of the second housing 810. Two second coils 840 are respectively located on two opposite inner surfaces 812 of the single slot 811. More specifically, the second coils 840 are located in the second housing 810 side by side with each other, that is, the second coils 840 overlap with each other and have a common axis A, and the single slot 811 is interposed between the second coils 840, and the axis A passes through the two opposite inner surfaces 812 of the single slot 811. It should be understood that the above-mentioned second coils 840 are respectively located on the two opposite inner surfaces 812 of the single slot 811 means that each second coil 840 is arranged in the internal space of the second housing 810 and contacts or is close to the corresponding position of one of the inner surfaces 812 of the single slot 811, or is wrapped in the second housing 810 and contacts or is close to the corresponding position of the inner surface 812.

[0116] Two first coils 340 are respectively located on two opposite outer sides 320S of the first housing 320 of the first charging head 300 side by side, that is, the first coils 340 overlap with each other and have a common axis A. It should be understood that the above-mentioned first coils 340 are respectively located on the two opposite outer sides 320S of the first housing 320 means that each first coil 340 is arranged in the internal space of the first housing 320 and contacts or is close to the corresponding position of one of the outer sides 320S of the first housing 320.

[0117] Thus, as shown, Figure 4C when the first housing 320 is inserted into the single slot 811 as a plug, the first coils 340 are just interposed between the second coils 840, so that the first coil 340 on one side of the first housing 320 and the second coil 840 overlap with each other and are spaced apart, the first coil 340 on the other side of the first housing 320 and the orthographic projection of the other second coil 840 overlap with each other and are spaced apart, and the first coils 340 and the second coils 840 have a common single axis A. In this way, the first charging head 300 can be positioned on the second charging head 800 more effectively.

[0118] More specifically, as shown, Figure 4A and Figure 4B the two opposite outer sides 320S of the first housing 320 are respectively recessed with a first recessed area 321, and each first coil 340 is fixed in the first housing 320 and faces the bottom surface 322 of one of the first recessed areas 321. The two opposite inner surfaces 812 of the single slot 811 are respectively recessed with a second recessed area 821, and each second coil 840 is fixed in the second housing 810 and faces the bottom surface 823 of one of the second recessed areas 821. As shown, Figure 4B andFigure 4C As shown, when the first housing 320 is inserted into a single slot 811 of the second housing 810, the first recessed area 321 on each side of the first housing 320 is connected to the corresponding second recessed area 821, so that the interconnected first recessed area 321 and the second recessed area 821 together form an air gap between the second coil 840 and the first coil 320.

[0119] It should be understood that the first housing 320 has sufficient thickness to block induced interference between the coils; in other words, there is an insulating entity (e.g., metal) between the first coils 340 located on different sides of the first housing 320.

[0120] Figure 5A This is a schematic diagram of the first charging head 301 and the second charging head 801 as viewed from one angle according to an embodiment of the present invention. Figure 5B for Figure 5A A schematic diagram of the first charging head 301 and the second charging head 801 viewed from another angle. (See diagram below.) Figure 5A and Figure 5B As shown, this embodiment is largely the same as the above embodiment, except that the second charging head 801 includes a plurality of (e.g., three) slots 822, and these slots 822 are sequentially arranged on the second surface 824 of the second housing 820 along a second extending direction (e.g., the X-axis direction) of the second surface 824. Three second coils 840 overlap each other inside the second housing 820, and these second coils 840 have a coaxial axis A. One of the inner surfaces 812 of each slot 822 is disposed on one of the second coils 840, more specifically, one of the second coils 840 is fixed inside the inner surface 812 on the same side of each slot 822. The first charging head 301 also has a plurality of (e.g., three) plugs 310. These plugs 310 are sequentially arranged on the first surface 324 of the first housing 323 along a first extending direction (e.g., the X-axis direction) of the first surface 324. Each first coil 340 is disposed inside one of the plugs 310, facing and close to the outer side of the corresponding plug 310. These first coils 340 overlap each other and have a coaxial axis A. In other words, one of the first coils 340 is arranged on the same side of each of the inserts 310. The number of first coils 340 is the same as the number of second coils 840. Thus, when the inserts 310 are inserted into the slots 822, each second coil 840 faces the corresponding first coil 340.

[0121] It should be understood that there is an isolation entity between the first coil 340 located in one slot 822 and the second coil 840 located in the other slot 822. However, the present invention is not limited to this. In other embodiments, an isolation entity may not be required, and only an air gap may be provided to prevent induced interference between the coils.

[0122] Figure 6 A schematic diagram of the first charging head 302 and the second charging head 802 in mutual docking for an embodiment of the present application. As shown, this embodiment is substantially the same as the above-mentioned embodiment, the difference being that each of the two opposite inner surfaces of each of the slots 822 is respectively provided with a second coil 840, more specifically, the inner part of each of the two opposite inner surfaces 812 in each of the slots 822 is respectively fixed with a second coil 840. One side of each of the plugs is provided with a first coil 340, more specifically, the inner part of each of the plugs 310 is respectively provided with only one first coil 340. The number of the second coils 840 is greater than the number of the first coils 340. For example, the number of the first coils 340 is 3, and the number of the second coils 840 is 6. Figure 6

[0123] Thus, when the plugs 310 respectively extend into the slots 822 so that the plugs 310 respectively abut against the bottom surface 825 of the corresponding slots 822, the first coil 340 in each of the slots 822 is interposed between two second coils 840.

[0124] It should be understood that, since each of the first coils 340 is located at the middle position inside the corresponding plug 310, the first coil 340 has a suitable separation distance between the two second coils 840 on its two opposite sides, therefore, the corresponding position of the first charging head 302 can not have the first recessed area of the above-mentioned embodiment, and the corresponding position of the second charging head 802 can not have the second recessed area of the above-mentioned embodiment.

[0125] Figure 7A A schematic diagram of the first charging head 303 and the second charging head 803 from one perspective for an embodiment of the present application. Figure 7B A schematic diagram of the first charging head 303 and the second charging head 803 from another perspective for Figure 7A an embodiment of the present application. Figure 7C A schematic diagram of the first charging head 303 and the second charging head 803 from another perspective for Figure 7A an embodiment of the present application. Figure 7A A schematic diagram of the first charging head 303 and the second charging head 803 in mutual docking for an embodiment of the present application. As shown, this embodiment is substantially the same as the above-mentioned embodiment, the difference being that each of the two opposite inner surfaces of each of the slots 822 is respectively provided with a second coil 840, more specifically, the inner part of each of the two opposite inner surfaces 812 in each of the slots 822 is respectively fixed with a second coil 840. One side of each of the plugs is provided with a first coil 340, more specifically, the inner part of each of the plugs 310 is respectively provided with only one first coil 340. The number of the second coils 840 is greater than the number of the first coils 340. For example, the number of the first coils 340 is 3, and the number of the second coils 840 is 6. Figure 7B ​As shown, the first charging head 303 includes a first housing 325 and a plurality of first recesses 330. The first housing 325 has a first surface 324. The first surface 324 extends along a first extending direction (e.g., the X-axis direction), and the first recesses 330 are arranged in a single row along the first extending direction (e.g., the X-axis direction) on the first surface 324. The first coils 340 are respectively fixed (e.g., embedded or locked) inside the first housing 325, and the first coils 340 face and align one-to-one with the bottom surfaces 330B of the first recesses 330, and are in contact with or located at corresponding positions close to the bottom surfaces 330B of the first recesses 330. In other words, the axes A of the first coils 340 are parallel to each other, and the axis A of each first coil 340 is perpendicular to the bottom surface 833B of the first surface 282. Each first coil 340 is disposed behind the first recess 330, which helps to isolate interference between the individual coils.

[0126] The second charging head 803 includes a second housing 830, an elongated groove 831, and a plurality of second recesses 833. The second housing 830 has a second surface 834. The elongated groove 831 is formed on the second surface 834, and the size of the elongated groove 831 is equal to the size of the first housing 325. The second recesses 833 are arranged sequentially on the bottom surface 832 of the elongated groove 831 along a major axis direction (e.g., the X-axis direction). The second coils 840 are respectively fixed (e.g., embedded or locked) in the second housing 830, and the axes A of the second coils 840 are parallel to each other and orthogonal to the major axis direction (e.g., the X-axis direction) of the elongated groove 831. The second coils 840 face and align one-to-one with the bottom surfaces 833B of the second recesses 833, and are in contact with or located at corresponding positions 833B that are quite close to the bottom surfaces of the second recesses 833. In other words, the axes A of these first coils 340 are parallel to each other, and the axis A of each first coil 340 is perpendicular to the bottom surface 833B of the first surface 282. Positioning the second coils 840 behind the second recesses 833 helps to isolate interference between the individual coils. Thus, when the first housing 325 is removably inserted into the elongated recess 831, each second recess 833 connects to one of the first recesses 330.

[0127] Figure 8 This is a perspective view of a charging station 201 of a wireless charging system 11 according to an embodiment of the present invention. Figure 8 As shown, this embodiment is similar to Figure 1The embodiments of the base 210 are substantially the same, and the difference is that the base 210 further comprises a base 220, a bracket 230, and a moving module 240. The bracket 230 is connected to the first charging head 280 and the base 220, respectively. The moving module 240 is connected to the base 220 and the bracket 230, so as to relatively move the first charging head 280 on the base 220. More specifically, the moving module 240 can relatively move the first charging head 280 along at least one of the three-dimensional directions (such as the X, Y, and Z axes).

[0128] For example, the moving module 240 comprises a slide column 241 and a slide groove 242. The slide groove 242 is formed on the bracket 230, the slide column 241 passes through the slide groove 242, and is fixed to the base 220. In this way, by linearly moving the bracket 230 along the slide column 241, the first charging head 280 on the bracket 230 can be relatively moved along the X axis. In other embodiments, the moving module 240 can also satisfy the first charging head 280 on the bracket 230 to move along the Z axis direction through a similar manner.

[0129] The base 210 further comprises a power motor 260. The detector 250 on the charging head 280 can detect the instant parking position of the mobile device 600. The power motor 260 is connected to the moving module 240 and the detector 250, so as to drive the moving module 240 to relatively move along at least one of the three-dimensional directions (such as the X, Y, and Z axes) according to the detection signal of the detector 250.

[0130] Figure 9 A perspective view of the charging station 200 of the wireless charging system according to an embodiment of the present application. As shown in Figure 9 the embodiment is substantially the same as Figure 1 the embodiment, and the difference is that the charging station 200 further comprises a fixed frame 410, a slide rail member 420, a folding module 430, and a connecting rib 440. The fixed frame 410 is used to be fixed to an object (such as a wall W). The slide rail member 420 is slidably located on the fixed frame 410. The folding module 430 comprises a first arm body 431, a second arm body 432, and a third arm body 433. One end of the first arm body 431 is pivotally connected to the slide rail member 420 through a pivot T1, and the other end is pivotally connected to one end of the second arm body 432 through a pivot T2. One end of the third arm body 433 is pivotally connected to the other end of the second arm body 432 through a pivot T3, and the second arm body 432 and the third arm body 433 are perpendicular to each other. The connecting rib 440 is L-shaped, one end of which is pivotally connected to the other end of the third arm body 433 through a pivot T4, and the other end is pivotally connected to the first charging head 280 of the base 210 through a pivot T5. The connecting rib 440 can be rotated relative to the third arm body 433 to drive the first charging head 280.

[0131] Thus, by sliding the sliding rail 420 relative to the fixed frame 410, the sliding rail 420 can drive the folding module 430, the connecting rib 440 and the first charging head 280 to move linearly along the transverse direction (e.g. X-axis).

[0132] According to the rotating manner around the pivots T1, T2, the first arm 431 and the second arm 432 can rotate to expand or shorten the first arm 431 and the second arm 432, so that the first charging head 280 approaches or moves away from the fixed frame 410 along the Y-axis direction. In addition, when the sliding rail 420, the first arm 431 and the second arm 432 are overlapped together, the second arm 432 can be received in the strip-shaped recess 431S of the first arm 431 to reduce the volume and save the storage space. Furthermore, by rotating the third arm 433 around the pivot T3, the third arm 433 can drive the connecting rib 440 and the first charging head 280 to rotate. By rotating the connecting rib 440 around the pivot T4, the connecting rib 440 drives the first charging head 280 to rotate. By rotating the first charging head 280 around the pivot T5, the first charging head 280 can rotate relative to the connecting rib 440.

[0133] Thus, the user can operate at least one of the sliding rail 420, the folding module 430 and the connecting rib 440 to align the second charging head (e.g. the second charging head 290) of the mobile device. Figure 1 ) with the first charging head 280.

[0134] Finally, the above disclosed embodiments are not intended to limit the present application, and any skilled person can make various modifications and decorations without departing from the spirit and scope of the present application, which can be protected in the present application. Therefore, the protection scope of the present application shall be subject to the scope defined by the appended claims.

Claims

1. A wireless charging system, characterized by, The power transmitting module comprises: a first charging head having a first housing and a plurality of first recessed areas recessed on a first surface of the first housing; a plurality of first coils disposed on the first charging head, fixed in the first housing respectively, and connected in parallel with each other, the first coils being embedded in the first housing and facing the bottom surfaces of the first recessed areas respectively, the axes of the first coils being perpendicular to the first surface of the first housing; and a power receiving module comprising: a second charging head having a second housing, a long recessed groove formed on a second surface of the second housing to accommodate the first housing, and a plurality of second recessed areas recessed in the long recessed groove and arranged along a long axis direction of the long recessed groove in sequence on the bottom surface of the long recessed groove; and a plurality of second coils disposed on the second charging head, fixed in the second housing respectively, and connected in parallel with each other, the second coils being embedded in the second housing and facing the bottom surfaces of the second recessed areas respectively, the axes of the second coils being perpendicular to the second surface, wherein when the first charging head is docked with the second charging head, the first surface of the first housing directly contacts the bottom surface of the long recessed groove, the first recessed areas of the first housing and the second recessed areas of the second housing are in communication with each other and jointly form an air gap, and each of the first coils faces and induces at least one of the second coils. The base comprises:

2. A charging station, characterized in that, a charging head having a housing and a plurality of inserts, the inserts being disposed on a first surface of the housing, each of the inserts having a recessed area recessed on one side thereof, the inserts of the charging head being used to be inserted into a plurality of slots of a mobile device, the slots being arranged in sequence on the mobile device, each of the slots having one of two opposite inner surfaces having a second coil respectively; and a plurality of first coils disposed on the charging head and embedded and fixed in the housing respectively, connected in parallel with each other, each of the first coils being arranged inside one of the inserts and facing the bottom surface of one of the recessed areas, used to face and induce the second coil in the slot of the mobile device respectively, and the axes of the first coils being coaxial with each other, the axis of each of the first coils being parallel to the extension direction of the first surface of the housing, wherein when the inserts are inserted into the slots respectively, the second coil in each of the slots faces the first coil on the corresponding insert. The base further comprises:

3. The charging station of claim 2, wherein, a receiving groove disposed on the base, so that the charging head can be disposed in the receiving groove replaceably. The base further comprises a first part, a second part, and a moving module, the charging head being disposed on the first part, the moving module connecting the first part and the second part, used to drive the charging head to move relative to the second part.

4. The charging station of claim 2, wherein, ​

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