Wireless charging module

Abstract

The present application provides a wireless charging module, including a base, a charging coil, a magnet and a plurality of partitions. The charging coil is arranged in the base. The magnet includes a base and a plurality of protruding parts. The protruding parts protrude from the same side of the base. The base and the protruding parts are integrally formed. The base is arranged in the base. The partitions are connected to the base, and the protruding parts of the magnet are separated from each other by the partitions; the present application increases the convenience of disassembling the magnet from the base.

Description

Technical Field

[0001] This invention relates to the field of charging technology, and in particular to a wireless charging module. Background Technology

[0002] In recent years, to make charging smartphones more convenient, manufacturers have introduced various wireless charging modules to free smartphones from the limitations of cables. Furthermore, because the smartphone and the charging coil of the wireless charging module need to be positioned relative to each other to maintain charging efficiency, the base of the wireless charging module typically contains multiple separate magnets. These magnets are arranged in a ring array within the base to attract the smartphone and position it relative to the charging coil.

[0003] However, traditional detachable magnets present a problem of inconvenient assembly and disassembly. Specifically, to assemble these magnets into the base of the wireless charging module, each magnet needs to be individually glued. Therefore, multiple applications of the glue dispensing equipment are required, and a considerable amount of time is needed for the adhesive to cure. Furthermore, when the wireless charging module is defective and requires rework, these magnets need to be removed from the base. Since these magnets are separate, the adhesive between each magnet and the base must be broken individually to remove all the magnets from the base. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a wireless charging module in which the magnet includes an integrally formed base and a plurality of protrusions to increase the convenience of detaching and installing the magnet from the base.

[0005] To achieve the above and other related objectives, the present invention provides a wireless charging module comprising a base, a charging coil, a magnet, and a plurality of spacers. The charging coil is disposed in the base. The magnet includes a base and a plurality of protrusions. The protrusions protrude from the same side of the base. The base and the protrusions are integrally formed. The base is disposed in the base. The spacers are connected to the base, and the protrusions of the magnet are separated from each other by the spacers.

[0006] According to the wireless charging module disclosed in the above embodiments, since the base and protrusions of the magnet are integrally formed, these protrusions of the magnet are fixed to the base. In this way, whether it is necessary to assemble the magnet onto the base or to remove the magnet from the base, it is not necessary to process each protrusion individually, which increases the convenience of assembling and removing the magnet from the base.

[0007] Furthermore, because the protrusions of the magnet are separated from each other by spacers, magnetic interference is less likely to occur between the separated protrusions. As a result, the magnetic force generated by the protrusions can more firmly attract electronic devices such as smartphones. Attached Figure Description

[0008] Figure 1 The image shown is a perspective view of one embodiment of the wireless charging module of the present invention.

[0009] Figure 2 The diagram shown is an exploded perspective view of the wireless charging module of the present invention in one embodiment.

[0010] Figure 3 The image shown is a partially enlarged cross-sectional view of a wireless charging module according to an embodiment of the present invention.

[0011] Symbol Explanation

[0012] 10 Wireless charging modules

[0013] 100 bases

[0014] 101 base plate

[0015] 102 Inner Annular Side Plate

[0016] 103 Outer circumferential side plate

[0017] 104 First Receiving Slot

[0018] 105 Second Receptacle

[0019] 106 Connecting Plate

[0020] 150 spacers

[0021] 200 charging coil

[0022] 300 magnets

[0023] 301 Base

[0024] 302 Protrusion

[0025] 400 circuit board

[0026] 500 Near-Field Communication Coil

[0027] 600 magnetic substrate

[0028] 700 Adhesive Parts

[0029] G gap Detailed Implementation

[0030] The following detailed description of the embodiments of the present invention outlines its features and advantages. This description is sufficient to enable anyone skilled in the art to understand the technical content of the embodiments of the present invention and to implement them accordingly. Furthermore, based on the disclosure, patent claims, and illustrations in this specification, anyone skilled in the art can easily understand the related objectives and advantages of the present invention. The following embodiments further illustrate the viewpoints of the present invention in detail, but are not intended to limit the scope of the invention in any way.

[0031] Please see Figures 1 to 3 , Figure 1 The image shown is a perspective view of a wireless charging module according to an embodiment of the present invention. Figure 2 The diagram shown is an exploded perspective view of the wireless charging module of the present invention in one embodiment. Figure 3 The image shown is a partially enlarged cross-sectional view of a wireless charging module according to an embodiment of the present invention.

[0032] In this embodiment, the wireless charging module 10 includes a base 100, a plurality of spacers 150, a charging coil 200, and a magnet 300. The wireless charging module 10 is used to charge electronic devices (not shown), such as smartphones.

[0033] In this embodiment, the base 100 includes a base plate 101, an inner annular side plate 102, and an outer annular side plate 103. The inner annular side plate 102 stands on the base plate 101 and together with the base plate 101 forms a first receiving groove 104. A spacer 150 protrudes radially from the inner annular side plate 102 in a direction away from the first receiving groove 104. Furthermore, in this embodiment, the spacer 150 and the base 100 are integrally formed, for example. The outer annular side plate 103 is connected to the side of the spacer 150 away from the inner annular side plate 102 and together with the inner annular side plate 102 forms a second receiving groove 105. The second receiving groove 105 surrounds the first receiving groove 104. The spacer 150 is located in the second receiving groove 105. It should be noted that in this embodiment, the base 100 also includes a connecting plate 106, through which the inner annular side plate 102 is connected to the base plate 101. The connecting plate 106 is, for example, parallel to the base plate 101 and, for example, perpendicular to the inner annular side plate 102.

[0034] The charging coil 200 is disposed in the first receiving groove 104 of the base 100 and is used to charge the electronic device.

[0035] The magnet 300 includes a base 301 and a plurality of protrusions 302. The protrusions 302 protrude from the same side of the base 301 and are used to attract electronic devices. The base 301 and the protrusions 302 are integrally formed. The base 301 and the protrusions 302 are disposed in a second receiving groove 105 of the base 100. The protrusions 302 of the magnet 300 are separated from each other in the second receiving groove 105 by spacers 150. It should be noted that, in this disclosure, since the base 301 and the protrusions 302 are part of the magnet 300, the base 301 and the protrusions 302 are magnetic.

[0036] In this embodiment, as Figure 3 As shown, the charging coil 200 and the magnet 300 are separated from each other by a portion of the base 100. Specifically, in this embodiment, an inner annular side plate 102 is located between the protrusions 302 of the charging coil 200 and the magnet 300, thus separating the charging coil 200 and the magnet 300 from each other. In this way, the inner annular side plate 102 can prevent the charging coil 200 and the magnet 300 from interfering with each other. It should be noted that in other embodiments, the charging coil and the magnet may also be separated from each other by an air gap without being separated by a portion of the base (i.e., the inner annular side plate).

[0037] In this embodiment, the wireless charging module 10 further includes a circuit board 400 and a near-field communication (NFC) coil 500. The NFC coil 500 is disposed on the circuit board 400 and used to communicate with electronic devices via near-field communication technology. The circuit board 400 is disposed in a first receiving groove 104 of the base 100, and the NFC coil 500 is located in the first receiving groove 104. It should be noted that since the second receiving groove 105 surrounds the first receiving groove 104, the magnet 300 located in the second receiving groove 105 will surround the circuit board 400. That is, the circuit board 400 is disposed at the center of the base 100, which makes it easier for the NFC coil 500 disposed on the circuit board 400 to receive signals from electronic devices and has a better sensing effect. In addition, since the NFC coil 500 is disposed on the circuit board 400, the NFC coil 500 can be disposed on the circuit board 400, for example, by etching or gluing, without being wrapped on a ring assembly frame, which simplifies the assembly method of the NFC coil 500.

[0038] In this embodiment, the circuit board 400 is, for example, a flexible circuit board, but is not limited thereto. In other embodiments, the circuit board may also be a rigid circuit board.

[0039] In this embodiment, the charging coil 200 and the near-field communication coil 500 are coaxial with each other, thereby improving the space utilization in the first receiving slot 104. In other embodiments, the charging coil and the near-field communication coil may also be coaxial, provided that the near-field communication coil according to this disclosure has a larger sensing range than the near-field communication coil disposed on the annular assembly frame.

[0040] In this embodiment, as Figure 3 As shown, the circuit board 400 and the charging coil 200 are separated by a gap G to prevent them from interfering with each other. In this embodiment, the gap G is, for example, 0.4 millimeters (mm). It should be noted that in other embodiments, the circuit board and the charging coil may also be in contact with each other.

[0041] In this embodiment, as Figure 3 As shown, the charging coil 200 is located between the circuit board 400 and the base plate 101, but is not limited thereto. In other embodiments, the charging coil may also be located on the side of the circuit board away from the base plate.

[0042] In this embodiment, the wireless charging module 10 further includes a magnetic substrate 600 and an adhesive member 700. The magnetic substrate 600 is housed in a first receiving groove 104 and is located between the base plate 101 and the charging coil 200. Furthermore, the magnetic substrate 600 is made of, for example, ferrite. The adhesive member 700 is housed in the first receiving groove 104 and is located between the magnetic substrate 600 and the charging coil 200. The charging coil 200 is fixed to the magnetic substrate 600 by the adhesive member 700. In other embodiments, the wireless charging module may not require the magnetic substrate 600 and the adhesive member 700.

[0043] Furthermore, it should be noted that in other embodiments, the second receiving slot may not need to surround the first receiving slot but may instead be located on one side of the first receiving slot. In other embodiments, the wireless charging module may also not need to include the circuit board 400 and the near-field communication coil 500.

[0044] According to the wireless charging module disclosed in the above embodiments, since the base and protrusions of the magnet are integrally formed, these protrusions of the magnet are fixed to the base. In this way, whether it is necessary to assemble the magnet onto the base or to remove the magnet from the base, it is not necessary to process each protrusion individually, which increases the convenience of assembling and removing the magnet from the base.

[0045] Furthermore, because the protrusions of the magnet are separated from each other by spacers, magnetic interference is less likely to occur between the separated protrusions. As a result, the magnetic force generated by the protrusions can more firmly attract electronic devices such as smartphones.

[0046] In one embodiment of the present invention, the wireless charging module of the present invention is automotive grade and can be applied to in-vehicle devices, such as self-driving cars, electric vehicles, or semi-self-driving cars, etc.

[0047] Furthermore, the wireless charging module disclosed herein integrates wireless charging technology and near-field communication technology, and can achieve applications requiring high data security through near-field communication technology for functions such as verification, simple pairing, and signal transmission.

[0048] The wireless charging module disclosed herein can be considered as a modular design, and the wireless charging module disclosed herein is not limited to wireless charging of general handheld devices, but can also be used for wireless charging of vehicle devices.

[0049] The circuit board for the near-field communication coil disclosed herein is automotive grade, enabling the wireless charging module disclosed herein to be used in a wireless charging pad inside an electric vehicle.

[0050] Although the present invention has been disclosed above with reference to the foregoing embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention shall be determined by the scope defined in the claims of the present invention.

Claims

1. A wireless charging module, comprising: Include: A base, the base comprising a bottom plate, an inner annular side plate and an outer annular side plate, the inner annular side plate standing on the bottom plate and forming a first receiving groove together with the bottom plate, the outer annular side plate being connected to a plurality of spacers on the side away from the inner annular side plate and forming a second receiving groove together with the inner annular side plate, the second receiving groove surrounding the first receiving groove; A charging coil is disposed in the base, and the charging coil is located in the first receiving groove; A magnet includes a base and a plurality of protrusions, the plurality of protrusions protruding from the same side of the base, the base and the plurality of protrusions being integrally formed, the base being disposed in the base, the magnet and the plurality of spacers being located in the second receiving groove, and the height of the upper surface of the protrusions being lower than the height of the inner annular side plate; as well as Multiple spacers are connected to the base and the multiple protrusions of the magnet are separated from each other by the multiple spacers, and the multiple spacers protrude from the inner annular side plate in a direction away from the first receiving groove.

2. The wireless charging module of claim 1, wherein, The charging coil and the magnet are separated from each other by a portion of the base.

3. The wireless charging module of claim 1, wherein, The wireless charging module also includes a circuit board and a near-field communication coil, the near-field communication coil being disposed on the circuit board, and the circuit board being disposed in the base.

4. The wireless charging module of claim 3, wherein, The circuit board is a flexible circuit board.

5. The wireless charging module of claim 3, wherein, The charging coil and the near-field communication coil are coaxial with each other.

6. The wireless charging module of claim 3, wherein, The circuit board and the charging coil are separated by a gap.

7. The wireless charging module of claim 1, wherein, The wireless charging module also includes a circuit board and a near-field communication coil. The near-field communication coil is disposed on the circuit board, and the circuit board is disposed in the first receiving slot such that the magnet surrounds the circuit board.

8. The wireless charging module of claim 7, wherein, The charging coil is located between the circuit board and the base plate.

9. The wireless charging module of claim 8, wherein, The wireless charging module further includes a magnetic substrate, which is housed in the first receiving groove and is located between the base plate and the charging coil.

Images