Wireless charging device and wireless charging system

Abstract

The embodiment of the present application provides a wireless charging device and a wireless charging system, wherein the wireless charging device includes a connecting plate and a base, wherein the connecting plate is provided with a wireless transmitting coil; the base is connected to the connecting plate through a rotating member, and the connecting plate can rotate relative to the base, wherein a wireless transmitting coil and a wireless transmitting management chip are provided on the base, and the wireless transmitting coil on the connecting plate and the wireless transmitting coil on the base are both electrically connected to the wireless transmitting management chip. The wireless charging device can use at least two wireless transmitting coils to charge the device to be charged at the same time, and multiple wireless transmitting coils cooperate with multiple wireless receiving coils of the device to be charged, so as to reasonably distribute the charging power and shorten the charging time.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a wireless charging device and a wireless charging system. Background Art

[0002] With the popularity of wireless charging, more and more electronic devices support wireless charging. However, due to the thickness limit of mobile phones, the coil must be as thin as possible, which limits the charging speed of wireless charging. Summary of the invention

[0003] The embodiments of the present application provide a wireless charging device and a wireless charging system, which can improve the charging speed.

[0004] The present application provides a wireless charging device, which includes:

[0005] A connecting plate, wherein a wireless transmitting coil is provided on the connecting plate;

[0006] The base is connected to the connecting plate through a rotating part, the connecting plate can rotate relative to the base, and a wireless transmitting coil and a wireless transmitting management chip are provided on the base. The wireless transmitting coil on the connecting plate and the wireless transmitting coil on the base are both electrically connected to the wireless transmitting management chip.

[0007] The embodiment of the present application further provides a wireless charging system, which includes a wireless charging device and an electronic device, wherein the wireless charging device wirelessly charges a battery of the electronic device, and the wireless charging device includes a connecting plate and a base;

[0008] The connecting plate is provided with a wireless transmitting coil;

[0009] The base is connected to the connecting plate through a rotating part, and the connecting plate can rotate relative to the base. A wireless transmitting coil and a wireless transmitting management chip are provided on the base. The wireless transmitting coil on the connecting plate and the wireless transmitting coil on the base are both electrically connected to the wireless transmitting management chip.

[0010] The wireless charging device provided in the embodiment of the present application includes a connecting plate and a base, the base is connected to the connecting plate by a rotating member, the connecting plate can rotate relative to the base, a wireless transmitting coil and a wireless transmitting management chip are provided on the base, and the wireless transmitting coil on the connecting plate and the wireless transmitting coil on the base are electrically connected to the wireless transmitting management chip. The wireless charging device can use at least two wireless transmitting coils to charge the device to be charged (such as a mobile phone) at the same time. Multiple wireless transmitting coils cooperate with multiple wireless receiving coils of the device to be charged, which can reasonably allocate the charging power and shorten the charging time. At the same time, through multiple transmitting coils and multiple wireless receiving coils, the current of each coil can be reduced and the heating of the coil can be reduced. The wireless transmitting coil on the connecting plate and the wireless transmitting coil on the base are connected in parallel to the wireless transmitting management chip, each wireless transmitting coil can be controlled individually, and one or two wireless transmitting chips can be controlled to transmit energy as needed. The wireless charging device can also charge two or more devices to be charged at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0012] Figure 1 A schematic diagram of the first structure of a wireless charging device provided in an embodiment of the present application.

[0013] Figure 2 A second structural schematic diagram of the wireless charging device provided in an embodiment of the present application.

[0014] Figure 3 A third structural schematic diagram of the wireless charging device provided in an embodiment of the present application.

[0015] Figure 4 A fourth structural schematic diagram of the wireless charging device provided in an embodiment of the present application.

[0016] Figure 5 A fifth structural schematic diagram of the wireless charging device provided in an embodiment of the present application.

[0017] Figure 6 A sixth structural schematic diagram of the wireless charging device provided in an embodiment of the present application.

[0018] Figure 7 A schematic diagram of the first structure of a wireless charging system provided in an embodiment of the present application.

[0019] Figure 8A second structural schematic diagram of the wireless charging system provided in an embodiment of the present application.

[0020] Fig. 9 A third structural schematic diagram of the wireless charging system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0022] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0023] Wireless charging technology does not require cables to complete power transmission, so it is becoming more and more popular. Wireless charging technology generally connects an adapter to a wireless charging device (such as a wireless charging base), and transmits the output power of the adapter to the device to be charged in a wireless manner (such as electromagnetic waves) through the wireless charging device, so as to wirelessly charge the device to be charged.

[0024] According to different wireless charging principles, wireless charging methods are mainly divided into three types: magnetic coupling (or electromagnetic induction), magnetic resonance and radio waves.

[0025] At present, the mainstream wireless charging standards include the QI standard, the Power Matters Alliance (PMA) standard, and the Alliance for Wireless Power (A4WP). Both the QI standard and the PMA standard use magnetic coupling for wireless charging. The A4WP standard uses magnetic resonance for wireless charging.

[0026] The embodiments of the present application provide a wireless charging device and a wireless charging system, which will be described in detail below. The wireless charging device may be a wireless charging base, a power bank with a wireless charging function, etc.

[0027] See also Figure 1 , Figure 1A schematic diagram of the first structure of a wireless charging device provided in an embodiment of the present application. The wireless charging device 200 includes a connecting plate 210 and a base 220. A wireless transmitting coil 230 is provided on the connecting plate 210. The base 220, the base 220 is connected to the connecting plate 210 through a rotating member 240, the connecting plate 210 can rotate relative to the base 220, the base 220 is provided with a wireless transmitting coil 230 and a wireless transmitting management chip 250, the wireless transmitting coil 230 on the connecting plate 210, and the wireless transmitting coil 230 on the base 220 are both electrically connected to the wireless transmitting management chip 250.

[0028] The wireless charging device 200 can use at least two wireless transmitting coils 230 to charge the device to be charged (such as a mobile phone) at the same time. Multiple wireless transmitting coils 230 cooperate with multiple wireless receiving coils of the device to be charged to reasonably allocate the charging power and shorten the charging time. At the same time, through multiple wireless transmitting coils 230 and multiple wireless receiving coils, the current of each coil can be reduced and the heating of the coil can be reduced. The wireless transmitting coil 230 on the connecting plate 210 and the wireless transmitting coil 230 on the base 220 are connected in parallel to the wireless transmitting management chip 250. The wireless transmitting management chip 250 can control each wireless transmitting coil 230 individually, and can control one or two wireless transmitting chips to transmit energy as needed. The wireless charging device 200 can also charge two or more devices to be charged at the same time.

[0029] For example, the device to be charged has two wireless receiving coils, and the base 220 and the connecting plate 210 of the wireless charging device 200 each have a wireless transmitting coil 230. The two wireless receiving coils of the device to be charged are respectively arranged in one-to-one correspondence with the two wireless transmitting coils 230 of the wireless charging device 200, and the two wireless transmitting coils 230 of the wireless charging device 200 are respectively arranged on the base 220 and the connecting plate 210. The two wireless transmitting coils 230 dissipate heat separately, and do not heat up in the same area at the same time, thereby reducing the impact on the wireless charging device 200. The base 220 and the connecting plate 210 are separated to facilitate their respective heat dissipation.

[0030] It should be noted that the number of the wireless transmitting coils 230 on the base 220 and the connecting plate 210 may be one, two, or more, such as three or four. The number of the wireless transmitting coils 230 on the base 220 and the connecting plate 210 may be equal or unequal.

[0031] In some embodiments, the number of the connecting plates 210 is at least two, each of the connecting plates 210 is provided with a wireless transmitting coil 230 , and each of the wireless transmitting coils 230 on the connecting plates 210 is electrically connected to the wireless transmitting management chip 250 .

[0032] The wireless charging device 200 may include multiple connecting boards 210, each of which is provided with a wireless transmitting coil 230, and the wireless transmitting coils 230 on all the connecting boards 210 are arranged in parallel, and the wireless transmitting coils 230 on each connecting board 210 are electrically connected to the wireless transmitting management chip 250. Multiple connecting boards 210 can more conveniently place the device to be charged, because the wireless transmitting management chip 250 also generates heat. If there are multiple connecting boards 210, the device to be charged can be placed on the connecting board 210 to reduce the heating of the base 220.

[0033] See also Figure 2 , Figure 2 A second structural schematic diagram of the wireless charging device provided in the embodiment of the present application: Each of the connecting plates 210 is connected to the base 220 via a rotating member 240 , and each of the connecting plates 210 can rotate relative to the base 220 .

[0034] Wherein, each connecting plate 210 is connected to the base 220 through a rotating member 240, and each connecting plate 210 can rotate relative to the base 220 if they are respectively arranged on different sides of the base 220. A plurality of connecting plates 210 are arranged around the base 220. If a connecting plate 210 is respectively arranged on two opposite sides of the base 220, the two connecting plates 210 can be arranged vertically with the base 220, and the base 220 can be lifted so that the bottom of the base 220 is suspended in the air, thereby increasing the heat dissipation at the bottom of the base 220. In this embodiment, a heat dissipation hole can be arranged at the bottom of the base 220, and the base 220 can also be provided with a heat dissipation channel running through from top to bottom. When the base 220 is lifted, the heat dissipation channel running through from top to bottom can quickly and effectively take the heat out of the base 220.

[0035] See also Figure 3 , Figure 3 A third structural schematic diagram of a wireless charging device provided in an embodiment of the present application. In some embodiments, the connecting plate 210 includes a first connecting plate 211 and a second connecting plate 212, the first connecting plate 211 is connected to the base 220 via a rotating member 240, the second connecting plate 212 is connected to the first connecting plate 211 via a rotating member 240, and the second connecting plate 212 is connected to the base 220 via the first connecting plate 211.

[0036] The base 220 , the first connecting plate 211 , and the second connecting plate 212 are connected in sequence.

[0037] See also Figure 4 , Figure 4A fourth structural schematic diagram of a wireless charging device provided in an embodiment of the present application. The connecting plate 210 further includes a third connecting plate 213 and a fourth connecting plate 214, wherein the third connecting plate 213 is connected to the base 220 via a rotating member 240, the fourth connecting plate 214 is connected to the third connecting plate 213 via a rotating member 240, and the fourth connecting plate 214 is connected to the base 220 via the third connecting plate 213.

[0038] The base 220, the first connecting plate 211 and the second connecting plate 212 are connected in sequence, and the base 220, the third connecting plate 213 and the fourth connecting plate 214 are connected in sequence. The base 220 is taken as the center and extends to both sides of the base 220 respectively.

[0039] In some embodiments, the number of the second connecting plates 212 is at least two, at least two of the second connecting plates 212 are connected in sequence, and any two of the at least two connecting plates 210 are connected via a rotating member 240 .

[0040] The wireless charging device 200 includes a plurality of second connection plates 212 , and the plurality of second connection plates 212 are connected in sequence.

[0041] In some embodiments, the first connecting plate 211 and the third connecting plate 213 are disposed on opposite sides of the base 220 .

[0042] The first connecting plate 211 and the third connecting plate 213 are disposed on opposite sides of the base 220 . The connecting plates 210 are respectively extended to opposite sides of the base 220 with the base 220 as the center to form a long strip shape.

[0043] In some embodiments, the first connecting plate 211 and the third connecting plate 213 are disposed on two adjacent sides of the base 220 .

[0044] The first connecting plate 211 and the third connecting plate 213 are disposed on two adjacent sides of the base 220 . The connecting plates 210 are respectively extended to two adjacent sides of the base 220 with the base 220 as the center to form a right angle.

[0045] In some embodiments, the wireless charging device 200 includes a plurality of second connection plates 212 and a plurality of fourth connection plates 214 , wherein the plurality of second connection plates 212 are connected in sequence, and the plurality of fourth connection plates 214 are connected in sequence.

[0046] See also Figure 5 , Figure 5 A fifth structural schematic diagram of a wireless charging device provided in an embodiment of the present application. The connecting plate 210 includes a first side adjacent to the base 220, and the wireless transmitting coil 230 on the connecting plate 210 is disposed adjacent to the first side;

[0047] The base 220 is provided with a slide rail 270 , and the wireless transmitting coil 230 on the base 220 can also slide on the slide rail 270 .

[0048] The wireless transmitting coil 230 on the connecting plate 210 is arranged adjacent to the base 220. The wireless transmitting coil 230 on the base 220 can slide along the slide rail 270 to adjust the relative positions of the two wireless transmitting coils 230 on the base 220 and the connecting plate 210 to cooperate with the device to be charged having two wireless receiving coils.

[0049] The slide rail 270 on the base 220 may have one slide rail 270, the direction of which is perpendicular to the connecting plate 210, and the distance between the wireless transmitting coil 230 on the base 220 and the wireless transmitting coil 230 on the connecting plate 210 is adjustable. There may be multiple slide rails 270 on the base 220. Specifically, it may include a first slide rail 270 perpendicular to the connecting plate 210, and multiple second slide rails 270 parallel to the connecting plate 210, the first slide rail 270 is connected to the second slide rail 270, that is, it can slide from the first slide rail 270 to the second slide rail 270. It may also include multiple first slide rails 270 perpendicular to the connecting plate 210, and a second slide rail 270 parallel to the connecting plate 210, the first slide rail 270 is connected to the second slide rail 270, that is, it can slide from the first slide rail 270 to the second slide rail 270.

[0050] It should be noted that there may be multiple connecting plates 210, each connecting plate 210 is connected to the base 220, and the position of the wireless transmitting coil 230 on each connecting plate 210 may be the same. The wireless transmitting coil 230 on each connecting plate 210 may be different, so that the wireless transmitting coil 230 of the base 220 and the wireless transmitting coil 230 of different connecting plates 210 have different relative positions to match different devices to be charged, and the relative positions of the two wireless transmitting coils 230 of different devices to be charged are different.

[0051] In some embodiments, a slide rail 270 is disposed on the connecting plate 210 , and the wireless transmitting coil 230 can slide along the slide rail 270 .

[0052] The wireless transmitting coil 230 on the connecting plate 210 can slide on the connecting plate 210 along the slide rail 270 to adjust the position of the wireless transmitting coil 230 on the connecting plate 210 so as to be compatible with a device to be charged having at least two wireless receiving coils.

[0053] The slide rail 270 disposed on the connecting plate 210 may adopt the structure of the slide rail 270 disposed on the base 220 in the above embodiment, which will not be described in detail herein.

[0054] See also Figure 6 , Figure 6 The sixth structural schematic diagram of the wireless charging device provided in the embodiment of the present application. The rotating member 240 includes a hinge, the connecting plate 210 is connected to the base 220 through the hinge, the connecting plate 210 is provided with a connecting port 280, the wireless transmitting coil 230 on the connecting plate 210 is electrically connected to the connecting port 280, and the connecting port 280 is electrically connected to the wireless transmitting management chip 250 on the base 220 through a connecting line 281.

[0055] The connecting plate 210 is connected to the base 220 through a hinge, and the connecting plates 210 are also connected to each other through a hinge, which facilitates the connection between the connecting plates 210 and between the connecting plate 210 and the base 220. In addition, a connection port 280 is provided on the connecting plate 210 and the base 220, and then the wireless transmission coil 230 on the connecting plate 210 and the wireless transmission management chip 250 of the base 220 are electrically connected through a connecting line 281. The connection port 280 can be a universal interface, such as a USB interface.

[0056] In some embodiments, the connection board 210 and the base 220, and the connection board 210 are not electrically connected through the connection port 280, but by setting a wire or FPC on the hinge, the wireless transmission coil 230 on the connection board 210 and the wireless transmission management chip 250 of the base 220 are electrically connected by the wire or FPC. Among them, the wireless transmission coils 230 on multiple connection boards 210 are arranged in parallel, and the wireless transmission management chip 250 controls each wireless transmission coil 230 separately.

[0057] See also Figure 7 , Figure 7 The first structural diagram of the wireless charging system provided in the embodiment of the present application. The wireless charging system includes a wireless charging device 200 and an electronic device 300, wherein the wireless charging device 200 wirelessly charges the battery of the electronic device 300, and the wireless charging device 200 can be the wireless charging device 200 in any of the above embodiments.

[0058] In some embodiments, the electronic device 300 includes at least two wireless receiving coils 310 , and the wireless charging device 200 includes wireless transmitting coils 230 corresponding to the at least two wireless receiving coils 310 .

[0059] The electronic device 300 has at least two wireless receiving coils 310 . The electronic device 300 is placed on the wireless charging device 200 . The at least two wireless receiving coils 310 of the electronic device 300 correspond one-to-one to the transmitting coil of the wireless charging device 200 .

[0060] For example, the base 220 and the connecting plate 210 of the wireless charging device 200 are placed flat, and the two wireless receiving coils 310 of the electronic device 300 are arranged on the rear shell of the electronic device 300 and are arranged at intervals, one wireless receiving coil 310 of the electronic device 300 corresponds to the wireless transmitting coil 230 of the base 220, and the other wireless receiving coil 310 of the electronic device 300 corresponds to the wireless transmitting coil 230 of the connecting plate 210. In this way, the two wireless transmitting coils 230 of the wireless charging device 200 radiate electromagnetic energy at the same time, and the two wireless receiving coils 310 of the electronic device 300 receive electromagnetic energy at the same time and convert the electromagnetic energy into electrical energy, and then use the converted electrical energy to charge the battery.

[0061] It should be noted that the electronic device 300 may be provided with three, four, or more wireless receiving coils 310 . Correspondingly, the wireless charging device 200 may also be provided with multiple wireless transmitting coils 230 , which correspond one to one with the multiple wireless receiving coils 310 .

[0062] See also Figure 8 and Fig. 9 , Figure 8 A second structural diagram of a wireless charging system provided in an embodiment of the present application is shown. Fig. 9 The third structural schematic diagram of the wireless charging system provided in the embodiment of the present application. The electronic device 300 includes a main body 320 and a folding portion 330, the folding portion 330 is connected to the main body 320 via a rotating shaft (not shown in the figure), the folding portion 330 can rotate relative to the main body 320, and the main body 320 and the folding portion 330 are both provided with a wireless receiving coil 310;

[0063] The folding portion 330 is disposed on the connecting plate 210 , and the wireless receiving coil 310 of the folding portion 330 is disposed correspondingly to the wireless transmitting coil 230 of the connecting plate 210 ;

[0064] The main body 320 is disposed on the base 220 , and the wireless receiving coil 310 of the main body 320 is disposed corresponding to the wireless transmitting coil 230 of the base 220 .

[0065] When the main body 320 and the folding part 330 of the electronic device 300 are separated, the heat dissipation area of ​​the wireless receiving coil 310 disposed in the main body 320 and the folding part 330 increases. If the wireless receiving coil 310 of the main body 320 and the wireless receiving coil 310 of the folding part 330 are originally arranged at intervals, they can be spaced further apart. If the wireless receiving coil 310 of the main body 320 and the wireless receiving coil 310 of the folding part 330 are originally arranged overlapping in space, that is, the areas where the two are projected on the same plane have an intersection, they can now be spaced apart and receive energy at the same time.

[0066] The folding portion 330 is disposed on the connecting plate 210 , the main body portion 320 is disposed on the base 220 , and the receiving antenna and the wireless transmitting antenna correspond one to one.

[0067] The connecting plate 210 and the base 220 may be formed in various shapes.

[0068] For example, the connecting plate 210 and the base 220 can form a sharp angle, the connecting plate 210 and the base 220 are both erected and arranged at a certain angle to the placement surface, there is a channel between the connecting plate 210 and the base 220, the folding portion 330 of the electronic device 300 is placed on the connecting plate 210, and the main body 320 of the electronic device 300 is placed on the base 220. In this way, the heat dissipation area is increased, and the channel between the connecting plate 210 and the base 220 can also dissipate heat. In addition, the base 220 is at a certain angle to the placement surface, the main body 320 of the electronic device 300 is placed on the base 220, and the electronic device 300 can be used while wirelessly charging, such as watching videos.

[0069] For another example, the connecting plate 210 may have at least two connecting plates 210, and at least two connecting plates 210 and the base 220 may form a triangle, wherein the substrate is placed flat on the placement surface, and the folding portion 330 and the main body 320 of the electronic device 300 are placed on the other two sides (two connecting plates 210) of the triangle respectively. In other embodiments, the connecting plate 210 may replace the substrate and be placed flat on the placement surface, and three connecting plates 210 may form a triangle.

[0070] For another example, the connecting plate 210 may have at least two connecting plates 210, at least two connecting plates 210 and two connecting plates 210 of the base 220 are placed vertically, and the base 220 is placed parallel to the placement surface and suspended, that is, the connecting plates 210 connected on both sides of the base 220 prop up the base 220, the folding portion 330 of the electronic device 300 is placed on the base 220, and the main body 320 of the electronic device 300 is arranged adjacent to one of the connecting plates 210. In other embodiments, the connecting plates 210 may replace the base 220 and be placed in parallel, and three connecting plates 210 may also adopt a similar structure, that is, two vertically placed connecting plates 210 prop up one connecting plate 210.

[0071] The charging device 200 can communicate with the electronic device 300. Specifically, wired communication can be performed through a USB interface, or wireless communication can be performed through WIFI, Bluetooth, near field communication, etc. Wireless communication can also be performed through a wireless transmitting coil 230 and a wireless receiving coil 310.

[0072] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0073] The wireless charging device and the wireless charging system provided by the embodiments of the present application are introduced in detail above. The principles and implementation methods of the present application are described in detail using specific examples herein. The description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. A wireless charging system, characterized in that: It comprises a wireless charging device and an electronic device, wherein the wireless charging device wirelessly charges a battery of the electronic device, and the wireless charging device comprises a connecting plate and a base, wherein the number of the connecting plates is at least two; Each of the connecting plates is provided with a wireless transmitting coil; The base is connected to the connecting plate via a rotating member, the connecting plate can rotate relative to the base, a wireless transmitting coil and a wireless transmitting management chip are provided on the base, and each wireless transmitting coil on the connecting plate and the wireless transmitting coil on the base are electrically connected to the wireless transmitting management chip; The electronic device comprises a main body and a folding part, wherein the folding part is connected to the main body via a rotating shaft, the folding part can rotate relative to the main body, and both the main body and the folding part are provided with a wireless receiving coil; The folding portion is arranged on the connecting plate, and the wireless receiving coil of the folding portion is arranged corresponding to the wireless transmitting coil of the connecting plate; The main body is arranged on the base, and the wireless receiving coil of the main body is arranged corresponding to the wireless transmitting coil of the base.

2. The wireless charging system according to claim 1, characterized in that: Each of the connecting plates is connected to the base via a rotating member, and each of the connecting plates can rotate relative to the base.

3. The wireless charging system according to claim 1, characterized in that: The connecting plate includes a first connecting plate and a second connecting plate, the first connecting plate is connected to the base via a rotating member, the second connecting plate is connected to the first connecting plate via a rotating member, and the second connecting plate is connected to the base via the first connecting plate.

4. The wireless charging system according to claim 3, characterized in that: The connecting plate also includes a third connecting plate and a fourth connecting plate, the third connecting plate is connected to the base via a rotating member, the fourth connecting plate is connected to the third connecting plate via a rotating member, and the fourth connecting plate is connected to the base via the third connecting plate.

5. The wireless charging system according to claim 4, characterized in that: The first connecting plate and the third connecting plate are arranged on two opposite sides of the base; or The first connecting plate and the third connecting plate are arranged on two adjacent sides of the base.

6. The wireless charging system according to claim 3, characterized in that: The number of the second connecting plates is at least two, at least two of the second connecting plates are connected in sequence, and any two of the at least two connecting plates are connected via a rotating member.

7. The wireless charging system according to claim 1, characterized in that: The connecting plate comprises a first side edge adjacent to the base, and the wireless transmitting coil on the connecting plate is arranged adjacent to the first side edge; The base is provided with a slide rail, and the wireless transmitting coil on the base can slide along the slide rail.

8. The wireless charging system according to claim 1, characterized in that: The connecting plate is provided with a slide rail, and the wireless transmitting coil can slide along the slide rail.

9. The wireless charging system according to claim 1, characterized in that: The rotating part includes a hinge, the connecting plate is connected to the base via the hinge, a connecting port is provided on the connecting plate, the wireless transmitting coil on the connecting plate is electrically connected to the connecting port, and the connecting port is electrically connected to the wireless transmitting management chip on the base via a connecting wire.

10. The wireless charging system according to claim 1, characterized in that: The electronic device includes at least two wireless receiving coils, and the wireless charging device includes a transmitting coil corresponding to the at least two wireless receiving coils in a one-to-one manner.

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