Wireless charging device and protective shell with same

Abstract

The utility model provides a wireless charging device and a protective shell with the same, and belongs to the technical field of electronic equipment accessories. The wireless charging device comprises a main board, a charging coil and a contact, wireless electric energy received by the charging coil is converted into contact output through the main board, and the wireless charging device is matched with original charging interfaces of equipment such as a tablet personal computer and an electronic book to achieve the wireless charging function. The protective shell integrated with the wireless charging device provides anti-falling protection, and meanwhile, a foldable support is arranged on the back and comprises an upper support and a lower support which are connected through a hinge, so that multi-angle supporting and hanging use are supported. The annular magnet between the mainboard and the coil strengthens electromagnetic coupling, the charging efficiency is improved, and the dustproof and waterproof performance is enhanced through the design of the groove in the protective shell and the sealing cover plate. According to the scheme, the problem that traditional equipment depends on a special charging wire is solved, and integration of wireless charging and equipment protection is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wireless charging technical field especially relates to a wireless charging device and the protective housing with the device. BACKGROUND

[0002] In daily life, part tablet computer, e-book reader, handheld game machine and so on electronic equipment although setting up has special charging contact and USB socket, but cannot realize wireless charging function, needs special charging base or data line connection every time, and operation is inconvenient. This kind of design leads to user still needing to rely on special charging base or data line connection every time, and operation is cumbersome and occupies space. For the user needing to move frequently office or travel, carrying additional charging equipment not only increases the burden, but also can cause charging failure due to interface wear or wire damage.

[0003] The utility model aims at providing a kind of wireless charging solution with small size, easy installation and can work with device native interface, to make up for the deficiency of prior art. UTILITY MODEL CONTENT

[0004] In view of this, the utility model provides a kind of wireless charging device with compact structure and flexible installation, and multifunctional protective housing integrated with the device.

[0005] The first aspect of the utility model provides a kind of wireless charging device, including mainboard, charging coil and contact, mainboard is electrically connected with charging coil, contact, mainboard processes the electric energy received by charging coil and exports from contact. The technical scheme converts the electric energy received wirelessly into contact output by mainboard, solves the problem that native contact of tablet computer and other devices only supports wired charging or data transmission, realizes the compatible adaptation of wireless charging and device interface. User does not need to use special base or data line, just needs to approach device to wireless charging transmitting end to power supply for equipment through contact.

[0006] Further, it also includes a substrate, the mainboard, the charging coil and the contact are installed on the substrate. The substrate serves as a carrier to uniformly install the mainboard, the charging coil and the contact, improving the connection stability between components and avoiding poor contact caused by loose layout.

[0007] Further, it also includes a magnet, and the wireless charging device is attracted to the electric device by the magnet. The magnetic attraction of the magnet helps the device to accurately align with the wireless transmitting end, improving the charging efficiency.

[0008] Further, the charging coil is in a circular shape, the mainboard is in a ring shape and surrounds the charging coil outside, and the contact is fixedly installed on the substrate. The layout of the mainboard surrounding the coil effectively reduces the overall size, is suitable for integration into a thin device or protective housing, reduces electromagnetic interference and improves the electric energy conversion efficiency.

[0009] More preferably, the main board and the charging coil are installed in a flat-shaped shell, and the shell is installed on the electrical equipment by a magnet or glue or adhesive tape.

[0010] The second aspect of the utility model provides a protective shell with a wireless charging device, which comprises the wireless charging device described above, and further comprises a protective shell, the inner side of the protective shell is provided with a groove, and the main board, the charging coil and the contact are fixed in the groove. The wireless charging device is combined with the protective shell to realize the wireless charging function while providing protection for the equipment and reduce the number of accessories that the user needs to carry.

[0011] Further to the foregoing solution, a cover plate is further provided, the cover plate covers and seals the main board, the charging coil and the substrate, a ring-shaped magnet is further provided between the main board and the charging coil, and the cover plate is provided with a through hole for the contact to pass through. The cover plate sealing structure further enhances the dustproof and waterproof performance. The ring-shaped magnet between the main board and the coil can strengthen the electromagnetic coupling and improve the charging stability, and the auxiliary device and the emitting end are attracted and aligned.

[0012] Further, the back of the protective shell is provided with a support, and the support comprises an upper support and a lower support. The foldable support forms a stable support structure after being unfolded, meeting the needs of users in standing to watch movies, video calls and other scenarios.

[0013] Further to the foregoing solution, the upper support and the lower support are connected through a hinge, the hinge comprises a first movable piece, a second movable piece, a fixed piece and a pivot, the first movable piece is fixed on the upper support, the second movable piece is fixed on the lower support, the fixed piece is fixedly installed on the protective shell, and the first movable piece and the second movable piece are rotatably connected with the fixed piece through the pivot. The solution supports multiple placement modes of the tablet computer, the placement angle covers 5-80 degrees, and the tablet computer can be hung on the edge of a table.

[0014] Further, the upper support and the lower support combine to form a ring, and the area of the ring occupied by the upper support is smaller than that of the lower support. The lower support is further provided with a support leg, and the support leg is flush with the lower end of the ring of the lower support, thereby enhancing the anti-toppling capability.

[0015] Compared with the prior art, the wireless charging device has the following beneficial effects:

[0016] The main board converts the wireless received electric energy into contact output, so that the native charging contact of the tablet computer and other equipment can directly receive wireless electric energy, and the technical blank that the existing equipment cannot realize wireless charging through the interface is solved.

[0017] The user only needs to place the device close to the wireless emitting end to complete the charging, and the operation steps are simplified.

[0018] Adopting flat shell design and ring main plate surrounding circular coil layout, thickness is greatly reduced, can be attached to the back of the device or embedded in the protective shell, suitable for light and thin devices.

[0019] Magnet adsorption design auxiliary device and transmitting end precise alignment, ring magnet strengthens electromagnetic coupling, improves charging efficiency and reliability.

[0020] Support magnet adsorption, glue or adhesive tape fixing, suitable for the surface of devices of different materials, meet the personalized needs of users.

[0021] Advantages of protective shell with wireless charging device

[0022] Combine wireless charging function with device protective shell, realize wireless charging while providing basic protection such as drop protection and dustproof, reduce the number of accessories carried by users.

[0023] The back folding support forms a stable support structure after unfolding, meeting the needs of standing to watch movies, video calls and other scenarios; after folding, it is attached to the shell, maintaining the light and thin portable characteristics.

[0024] The upper and lower supports are combined into a circular ring structure to increase the support area, the foot is flush with the lower end of the lower support to ensure the balance of the center of gravity of the device, the anti-toppling ability is enhanced, and the upper and lower supports can also be hung on the edge of a table. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Figure 1 The overall schematic diagram provided for the embodiment 1 of the present application is shown in the figure.

[0027] Figure 2 The explosion schematic diagram provided for the embodiment 1 of the present application is shown in the figure.

[0028] Figure 3 , 4 The explosion schematic diagram provided for the embodiment 2 of the present application is shown in the figure.

[0029] Figure 5 , 6 The overall schematic diagram provided for the embodiment 2 of the present application is shown in the figure.

[0030] Figure 7 The use state reference diagram provided for the embodiment 2 of the present application is shown in the figure.

[0031] Figure 8 The bracket structure schematic view provided by the embodiment 2 of the utility model;

[0032] Figure 9 、 10 The hinge structure schematic view provided by the embodiment 2 of the utility model;

[0033] Figure 11 The bracket structure schematic view provided by the embodiment 2 of the utility model;

[0034] Figure 12 The use schematic view provided by the embodiment 2 of the utility model.

[0035] In the drawing, various reference signs are as follows:

[0036] 1, mainboard; 2, charging coil; 3, contact; 31, base plate; 4, magnet; 5, cover plate; 6, protective shell; 61, recess; 62, button; 7, bracket; 71, upper bracket; 711, mounting groove; 72, lower bracket; 721, supporting leg; 73, hinge; 731, first movable piece; 732, second movable piece; 733, fixed piece; 734, rotating shaft; 8, table.

[0037] The specific embodiments of the utility model have been shown by the above-mentioned drawings, and will be described in more detail in the following. These drawings and textual descriptions are not intended to limit the scope of the utility model concept by any means, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0039] To make the technical solutions and advantages of the utility model clearer, the embodiments of the utility model will be described in further detail in combination with the drawings.

[0040] Embodiment 1

[0041] As Figures 1-2As shown, the wireless charging device provided in this embodiment adopts a highly integrated design. Its core components include a circular charging coil 2, a ring-shaped mainboard 1 surrounding it, and spring-loaded gold-plated contacts 3. The mainboard 1 is a ring-shaped circuit board made of FR4 material, integrating a rectifier and filter circuit, a step-down chip, and an overvoltage protection module, which can convert the received 5-15V AC power into the 5V DC power required by the device. The contacts 3 adopt a 1.5mm pitch design, which is fully compatible with the charging interfaces of mainstream tablet computers, ensuring reliable contact. The number of contacts 3 can be set to 2 to 6 as needed, and the contacts 3 are fixedly mounted on the substrate 31.

[0042] In some embodiments, the main body of the device is encapsulated within a flat ABS shell, with an overall thickness controlled to within 2.8 mm. An array of N42 neodymium iron boron magnets is embedded on the back of the shell, allowing it to be attached to the metal frame of the device. A 3M VHB adhesive layer is also provided as an alternative fixing solution. The main board 1 and the coil are fixed to the substrate with double-sided adhesive, with a 0.3 mm thick nano-thermal conductive silicone sheet filling the space between them. Combined with the heat dissipation hole array on the back of the shell, this ensures that the temperature rise during charging is controlled to within 25°C. In other embodiments, the circular charging coil 2, the annular main board 1 surrounding it, and the spring-loaded gold-plated contacts 3 can be encapsulated within other devices, and the charging coil and main board can adopt other shapes.

[0043] Example 2

[0044] like Figures 3-12 As shown, the protective case 6 in this embodiment is a tablet computer protective case. A groove 61 is provided on the inner side of the protective case 6, and the motherboard 1, charging coil 2, and substrate 31 are fixed within the groove 61. By combining the wireless charging device with the protective case 6, wireless charging functionality is achieved while providing device protection, reducing the number of accessories the user needs to carry. Figure 3 , 4 As shown, it also includes a cover plate 5, which covers and seals the main board 1, charging coil 2, and substrate 31. A ring-shaped magnet 4 is also provided between the main board 1 and charging coil 2. The cover plate 5 has through holes for the contacts 3 to pass through. The sealing of the cover plate 5 further enhances dust and water resistance. A button 62 and a slot for holding a pen are also provided on the top of the housing 6. The ring-shaped magnet 4 between the main board 1 and the coil strengthens electromagnetic coupling, improves charging stability, and also assists in the magnetic alignment of the device and the transmitter.

[0045] like Figures 6-11As shown, the back of the protective shell 6 is provided with a support 7, which includes an upper support 71 and a lower support 72. The foldable support 7 forms a stable support structure after unfolding, meeting the needs of users standing to watch videos, video calls and the like. The upper support 71 and the lower support 72 are connected through a hinge 73, which includes a first movable piece 731, a second movable piece 732, a fixed piece 733 and a pivot shaft 734. The first movable piece 731 is fixed in a mounting groove 711 of the upper support 71, the second movable piece 732 is fixed in a mounting groove 711 of the lower support 72, the fixed piece 733 is fixedly installed on the protective shell 6, and the first movable piece 731 and the second movable piece 732 are rotatably connected with the fixed piece 733 through the pivot shaft 734. The scheme supports multiple placement modes of the tablet computer, the placement angle of which covers 5-80 degrees, and the tablet computer can be hung on the edge of a table 8, as shown in Figure 12 .

[0046] As shown in Figure 7 , 8 , the edges of the first movable piece 731 and the second movable piece 732 are provided with notches, which facilitate the user to pry out the support.

[0047] The upper support 71 and the lower support 72 combine to form a circular ring, and the area of the circular ring occupied by the upper support 71 is smaller than that of the lower support 72. The lower support 72 is further provided with a supporting leg 721, which is flush with the lower end of the circular ring of the lower support 72, thereby enhancing the anti-toppling capability. When the support 7 is completely unfolded to 180°, the combined circular ring structure can be hidden in the groove 61 of the shell.

[0048] In order to understand the disclosed content of the utility model more thoroughly and comprehensively, the principle will be further explained in combination with the use mode.

[0049] In use, the tablet computer is installed in the protective shell 6, and the contacts 3 on the back of the tablet computer are in contact with the contacts 3 of the wireless charging device. When the tablet computer approaches the wireless charging device, the mainboard 1 converts the wireless received electric energy into the output of the contacts 3, so that the native charging contacts 3 of the tablet computer can directly receive the wireless electric energy.

[0050] In use of the support 7, the upper support 71 can be unfolded alone to realize low-angle placement of the tablet computer, the lower support 72 can be unfolded alone to realize high-angle placement of the tablet computer, as shown in Figure 12 , and the upper support 71 and the lower support 72 can be unfolded simultaneously to realize hanging placement.

[0051] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0052] It should be noted that as used herein, the term "and / or" means and. It should be further noted that as used herein, the terms "one or more" and "at least one" are open-ended expressions that are intended to be synonymous, unless the context dictates otherwise. It should be noted that as used herein, the terms "fixing" or "fixed" mean that an element is directly or indirectly connected to another element. It should be noted that as used herein, the terms "connected" or "connecting" mean that an element is directly or indirectly connected to another element. It should be further noted that as used herein, the terms "over" or "on" mean that an element is directly on another element. It should be noted that as used herein, the terms "vertical", "horizontal", "left", "right", and similar expressions are used for illustrative purposes only and are not intended to be limiting. It should be noted that as used herein, the terms "top", "bottom", "left side", "right side", "front", "back", and similar expressions are used for illustrative purposes only and are not intended to be limiting.

[0053] It is to be understood that the application is not limited to the specific structures that have been described and that shown in the drawings, and that since modifications and changes can be made in the embodiments of the application, in its operation procedures, and / or in its details, without departing from the scope of the application. The scope of the application is to be limited only by the claims appended hereto.

Claims

1. A wireless charging device, characterized by: The wireless charging device comprises a main plate (1), a charging coil (2) and a contact (3), the main plate (1) is electrically connected with the charging coil (2) and the contact (3), and the main plate (1) processes the electric energy received by the charging coil (2) and outputs from the contact (3).

2. The wireless charging device of claim 1, wherein: The wireless charging device further comprises a substrate, and the main plate (1), the charging coil (2) and the contact (3) are mounted on the substrate.

3. The wireless charging device of claim 2, wherein: The wireless charging device further comprises a magnet (4), and the wireless charging device is adsorbed on the electric equipment by the magnet (4).

4. The wireless charging device of claim 1, wherein: The charging coil (2) is in a circular shape, the main plate (1) is in a ring shape and surrounds the charging coil (2) outside, and the contact (3) is fixedly mounted on the substrate (31).

5. The wireless charging device of claim 1, wherein: The main plate (1) and the charging coil (2) are mounted in a flat shell, and the shell is mounted on the electric equipment by the magnet (4) or glue and adhesive tape.

6. A protective case with wireless charging device, characterized in that: The wireless charging device of any one of claims 1-5 further comprises a protective shell (6), and a recess (61) is arranged on the inner side of the protective shell (6), and the main plate (1), the charging coil (2) and the contact (3) are fixed in the recess (61).

7. The protective case with wireless charging device of claim 6, wherein: The wireless charging device further comprises a cover plate (5), the cover plate (5) covers and seals the main plate (1), the charging coil (2) and the substrate (31), a ring-shaped magnet (4) is further arranged between the main plate (1) and the charging coil (2), and the cover plate (5) is provided with a through hole through which the contact (3) passes.

8. The protective case with wireless charging device of claim 6, wherein: The back of the protective shell (6) is provided with a support (7), and the support (7) comprises an upper support (71) and a lower support (72).

9. The protective case with wireless charging device of claim 8, wherein: The upper support (71) and the lower support (72) are connected by a hinge (73), and the hinge (73) comprises a first movable piece (731), a second movable piece (732), a fixed piece (733) and a rotating shaft (734).

10. The protective case with wireless charging device of claim 9, wherein: The upper support (71) and the lower support (72) are combined to form a circular ring, and the area of the circular ring occupied by the upper support (71) is smaller than that of the lower support (72), and the lower support (72) is further provided with a supporting leg (721) which is flush with the lower end of the circular ring of the lower support (72).

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