TWI808665B - Wireless charging module - Google Patents

Abstract

A wireless charging module including a base, a charging coil, a magnet and partitions. The charging coil is disposed in the base. The magnet includes a base part and protruding parts. The protruding parts protrudes from the same side of the base part. The base part and the protruding parts are integrally formed as a single piece. The base part is disposed in the base. The partitions are connected to the base and the protruding parts of the magnet are spaced apart from each other via the partitions.

Description

Wireless Charging Module

The present invention relates to a charging module, in particular to a wireless charging module.

In recent years, in order to enable smart phones to be charged in a more convenient way, manufacturers have introduced various wireless charging modules so that the charging of smart phones is no longer limited by cables. Moreover, since the charging coils of the smart phone and the wireless charging module need to be positioned with each other to maintain charging efficiency, a plurality of magnets separated from each other are usually arranged in the base of the wireless charging module. These magnets are arranged in the base in a circular array and are used to attract the smartphone to position the smartphone and the charging coil relative to each other.

However, the traditional separated magnet has the problem of inconvenient disassembly and assembly. In detail, in order to assemble these magnets into the base of the wireless charging module, it is necessary to dispense glue to these magnets one by one. Therefore, it is necessary to use the dispensing equipment many times and it takes a lot of time to wait for the glue to solidify. On the other hand, when the wireless charging module is defective and requires rework, the magnets need to be removed from the base. Since the magnets are separated from each other, the bond between the magnets and the base needs to be broken one by one to remove all the magnets from the base.

The present invention provides a wireless charging module, the magnet of which includes an integrally formed base and a plurality of protrusions to increase the convenience of disassembling and assembling the magnet from the base.

A wireless charging module disclosed in an embodiment of the present invention includes a base, a charging coil, a magnet and a plurality of spacers. The charging coil is arranged in the base. The magnet includes a base and a plurality of protrusions. The protrusion protrudes from the same side of the base. The base and the protrusion are integrally formed. The base is disposed in the base. The spacer is connected to the base and the protrusions of the magnet are separated from each other through the spacer.

According to the wireless charging module disclosed in the above embodiments, since the base of the magnet and the protruding part are integrally formed, the protruding parts of the magnet are fixed to the base. In this way, whether the magnet needs to be assembled on the base or the magnet needs to be disassembled from the base, there is no need to process each protrusion one by one, which increases the convenience of disassembling the magnet from the base.

In addition, since the protrusions of the magnet are separated from each other by the spacer, it is less likely to generate magnetic interference between the protrusions separated by the spacer. In this way, the magnetic force generated by the protrusion can more firmly attract electronic devices such as smart phones.

The detailed features and advantages of the embodiments of the present invention are described in detail below in the implementation manner, the content is enough to enable any person with ordinary knowledge in the art to understand the technical content of the embodiments of the present invention and implement them accordingly, and according to the content disclosed in this specification, the scope of patent application and the drawings, any person with ordinary knowledge in the art can easily understand the related objectives and advantages of the present invention. The following examples are to further describe the concept of the present invention in detail, but not to limit the scope of the present invention in any way.

Please refer to FIGS. 1 to 3. FIG. 1 is a perspective view of a wireless charging module according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the wireless charging module in FIG.

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 for charging electronic devices (not shown) such as smart phones.

In this embodiment, the base 100 includes a bottom plate 101 , an inner annular side plate 102 and an outer annular side plate 103 . The inner annular side plate 102 stands on the bottom plate 101 to form a first accommodating groove 104 together with the bottom plate 101 . The spacer 150 protrudes radially from the inner annular side plate 102 along a direction away from the first receiving groove 104 . Moreover, in this embodiment, the spacer 150 and the base 100 are integrally formed, for example. The outer annular side plate 103 is connected to a side of the spacer 150 away from the inner annular side plate 102 to form a second accommodating groove 105 together with the inner annular side plate 102 . 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 further includes an connecting plate 106 through which the inner annular side plate 102 is connected to the bottom plate 101 . The connecting plate 106 is for example parallel to the bottom plate 101 and for example perpendicular to the inner annular side plate 102 .

The charging coil 200 is disposed in the first accommodating slot 104 of the base 100 and used for charging the electronic device.

The magnet 300 includes a base 301 and a plurality of protrusions 302 . The protruding part 302 protrudes from the same side of the base part 301 and is used for absorbing the electronic device. The base portion 301 and the protruding portion 302 are integrally formed. The base portion 301 and the protruding portion 302 are disposed in the second receiving groove 105 of the base 100 . The protruding parts 302 of the magnet 300 are separated from each other through the spacer 150 in the second receiving groove 105 . It should be noted that in this disclosure, since the base 301 and the protrusion 302 are part of the magnet 300 , the base 301 and the protrusion 302 are magnetic.

In this embodiment, as shown in FIG. 3 , the charging coil 200 and the magnet 300 are separated from each other through the part of the base 100 . Specifically, in this embodiment, the inner annular side plate 102 is interposed between the charging coil 200 and the protruding portion 302 of the magnet 300 to separate 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 only through an air gap without being separated from each other by a part of the base (ie, the inner annular side plate).

In this embodiment, the wireless charging module 10 further includes a circuit board 400 and a near field communication (NFC) coil 500 . The near field communication coil 500 is disposed on the circuit board 400 and used for communicating with the electronic device through the near field communication technology. The circuit board 400 is disposed in the first accommodating slot 104 of the base 100 , and the NFC coil 500 is located in the first accommodating slot 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 to say, the circuit board 400 is disposed at the center of the base 100 , which makes it easier for the near field communication coil 500 disposed on the circuit board 400 to receive signals from the electronic device and have a better induction effect. In addition, since the near field communication coil 500 is disposed on the circuit board 400, the near field communication coil 500 can be disposed on the circuit board 400 by etching or pasting without being wound on the ring assembly frame, which simplifies the assembly method of the near field communication coil 500.

In this embodiment, the circuit board 400 is, for example, a flexible circuit board, but it is not limited thereto. In other embodiments, the circuit board can also be a rigid circuit board.

In this embodiment, the charging coil 200 and the near field communication coil 500 are coaxial with each other, so as to improve the utilization rate of the space in the first receiving slot 104 . In other embodiments, as long as the near field communication coil according to the present disclosure has a larger induction range than the near field communication coil disposed on the ring assembly frame, the charging coil and the approach communication coil can also be non-coaxial.

In this embodiment, as shown in FIG. 3 , the circuit board 400 and the charging coil 200 are separated by a gap G, so as to prevent the circuit board 400 and the charging coil 200 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 can also be in contact with each other.

In this embodiment, as shown in FIG. 3 , the charging coil 200 is interposed between the circuit board 400 and the base plate 101 , but the present invention is not limited thereto. In other embodiments, the charging coil can also be located on the side of the circuit board away from the bottom board.

In this embodiment, the wireless charging module 10 further includes a magnetic substrate 600 and an adhesive member 700 . The magnetic substrate 600 is accommodated in the first accommodation slot 104 and interposed between the bottom plate 101 and the charging coil 200 . In addition, the magnetic substrate 600 is made of ferrite, for example. The adhesive member 700 is accommodated in the first accommodation slot 104 and interposed between the magnetic substrate 600 and the charging coil 200 . The charging coil 200 is fixed on the magnetic substrate 600 through the adhesive member 700 . In other embodiments, the wireless charging module does not need to include the magnetic substrate 600 and the adhesive member 700 .

In addition, it should be noted that in other embodiments, the second accommodating groove may also be located at one side of the first accommodating groove instead of surrounding the first accommodating groove. In other embodiments, the wireless charging module does not need to include the circuit board 400 and the near field communication coil 500 .

According to the wireless charging module disclosed in the above embodiments, since the base of the magnet and the protruding part are integrally formed, the protruding parts of the magnet are fixed to the base. In this way, whether the magnet needs to be assembled on the base or the magnet needs to be disassembled from the base, there is no need to process each protrusion one by one, which increases the convenience of disassembling the magnet from the base.

In addition, since the protrusions of the magnet are separated from each other by the spacer, it is less likely to generate magnetic interference between the protrusions separated by the spacer. In this way, the magnetic force generated by the protrusion can more firmly attract electronic devices such as smart phones.

In an embodiment of the present invention, the wireless charging module of the present invention adopts the grade of vehicle standards and can be applied to vehicle-mounted devices, such as self-driving cars, electric cars, or semi-autonomous cars.

In addition, the wireless charging module according to the present disclosure integrates the wireless charging technology and the near field communication technology, and can implement functions such as verification, simple pairing, and signal transmission through the near field communication technology to realize applications requiring high data security.

The wireless charging module according to the present disclosure can be regarded as a modular design, and the wireless charging module according to the present disclosure is not limited to the wireless charging of general handheld devices, and can also be applied to the wireless charging of vehicle-mounted devices.

According to the present disclosure, the circuit board for the near-field communication coil is provided with a vehicle-grade grade, so that the wireless charging module according to the present disclosure can be applied to the wireless charging stand in the interior of the electric vehicle.

Although the present invention is disclosed above with the above-mentioned various embodiments, it is not intended to limit the present invention. Any person familiar with similar skills may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention must be defined by the patent scope attached to this specification.

10: Wireless charging module 100: base 101: Bottom plate 102: Inner ring side plate 103: Outer ring side plate 104: The first storage tank 105: Second storage tank 106: Connecting board 150: spacer 200: charging coil 300: magnet 301: base 302: protruding part 400: circuit board 500: near field communication coil 600: Magnetic substrate 700: adhesive parts G: Gap

FIG. 1 is a perspective view of a wireless charging module according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the wireless charging module in FIG. 1 . FIG. 3 is a partial enlarged view of a schematic cross-sectional view of the wireless charging module in FIG. 1 .

10: Wireless charging module

100: base

150: Spacer

302: protruding part

400: circuit board

Claims (9)

A wireless charging module, comprising: a base including a bottom plate, an inner annular side plate and an outer annular side plate, the inner annular side plate stands on the bottom plate and forms a first accommodation groove together with the base plate; a charging coil is arranged in the first accommodation groove of the base; a magnet includes a base and a plurality of protrusions protruding from the same side of the base, the base and the protrusions are integrally formed, the base is arranged in the base; The protrusions on the base and the magnet are separated from each other by the spacers, the spacers protrude from the inner annular side plate along the direction away from the first accommodation groove, the outer annular side plate is connected to the side of the spacers away from the inner annular side plate and form a second accommodation groove together with the inner annular side plate, the second accommodation groove surrounds the first accommodation groove, and the magnet and the spacers are located in the second accommodation groove. The wireless charging module as claimed in claim 1, wherein the charging coil and the base of the magnet passing portion are separated from each other. The wireless charging module as described in claim 1 further includes a circuit board and a near field communication (NFC) coil, the near field communication coil is arranged on the circuit board, and the circuit board is arranged in the base. The wireless charging module according to claim 3, wherein the circuit board is a flexible circuit board. The wireless charging module according to claim 3, wherein the charging coil and the near field communication coil are coaxial with each other. The wireless charging module according to claim 3, wherein the circuit board and the charging coil are separated from each other by a gap. The wireless charging module as described in claim 1 further includes a circuit board and a near field communication (NFC) coil, the near field communication coil is arranged on the circuit board, and the circuit board is arranged in the first accommodating groove so that the magnet surrounds the circuit board. The wireless charging module as claimed in claim 7, wherein the charging coil is interposed between the circuit board and the bottom plate. The wireless charging module according to claim 1 further includes a magnetic substrate accommodated in the first accommodating space, and the magnetic substrate is interposed between the base plate and the charging coil.

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