WO2020132800A1

WO2020132800A1 - Wireless charging device

Info

Publication number: WO2020132800A1
Application number: PCT/CN2018/123096
Authority: WO
Inventors: 吴廷强
Original assignee: 绿灯实验室(深圳)科技有限公司
Priority date: 2018-12-24
Filing date: 2018-12-24
Publication date: 2020-07-02

Abstract

The present application provides a wireless charging device for charging a mobile terminal device supporting wireless charging. The wireless charging device comprises a charging base and a wireless charger provided in the charging base. The charging base is provided with a positioning frame for accommodating and positioning the mobile terminal device. When the mobile terminal device is accommodated in the positioning frame, a transmitter coil, in the wireless charger, for generating electromagnetic induction is aligned with a receiver coil, in the mobile terminal device, for inductive coupling with the transmitter coil.

Description

Wireless charging device

Technical field

This application relates to the field of charging equipment, in particular to a wireless charging device.

Background technique

In order to pursue the fast, convenient and high experience of charging, wireless charging devices are gradually appearing in our lives. Existing smartphones also increasingly support electromagnetic induction wireless charging. The wireless charger is based on the principle of electromagnetic induction For charging, the wireless charger usually includes a wireless charging stand, which is provided with a transmitter coil for generating electromagnetic induction, and a receiver coil is integrated on a mobile terminal device such as a smartphone, and the receiver coil is inductively coupled with the transmitter coil To generate an induced voltage to charge the mobile terminal device.

In the prior art, the wireless charging base generally includes a support plane for placing the mobile terminal. Because electromagnetic induction requires a certain coupling distance, when charging, the mobile terminal device that supports wireless charging needs to be placed on the support surface of the wireless charger, and the receiving end coil in the mobile terminal device needs to be aligned with the transmission in the wireless charger End coil can be charged. However, since the support plane of the wireless charging base is inconvenient to align the receiving terminal coil of the mobile terminal with the transmitting terminal coil in the wireless charger, the user cannot ensure that each time the user frequently picks up the mobile terminal for use and puts down the mobile terminal for charging It can be aligned on a single charge, which is inconvenient to use and reduces the user experience.

Summary of the invention

The present application provides a wireless charging device that can conveniently align the receiving end coil in the mobile terminal device with the transmitting end coil in the wireless charger.

A wireless charging device provided by the present application is used to charge a mobile terminal device supporting wireless charging. The wireless charging device includes a charging stand and a wireless charger provided in the charging stand. The charging stand is provided with useful A positioning frame for accommodating and positioning the mobile terminal device, when the mobile terminal device is accommodated in the positioning frame, a transmitter coil for generating electromagnetic induction in the wireless charger aligns the mobile terminal A receiver coil in the device for inductively coupling with the transmitter coil.

Preferably, the positioning frame includes a supporting plate and a side wall disposed on the peripheral edge of the front surface of the supporting plate, the supporting plate and the side wall enclose an accommodation space, and the mobile terminal device is accommodated and positioned in the accommodation space Inside.

Preferably, at least one notch is formed in the side wall, the notch penetrates the accommodation space, and the mobile terminal device is conveniently taken out or placed in the accommodation space through the notch.

Preferably, the supporting plate has a rectangular shape, and two opposite notches are provided on the side walls on the opposite side edges of the supporting plate.

Preferably, the length and width of the receiving space groove are slightly larger than the length and width of the corresponding size mobile terminal.

Preferably, the size and shape of the storage space match the size and shape of the mobile terminal device stored in the storage space, so that the mobile terminal device can be freely placed in the storage space and can keep moving The receiving end coil of the terminal device maintains alignment with the transmitting end coil in the wireless charger.

Preferably, the side wall of the support plate extends a length toward the side facing away from the receiving space, so that the back of the support plate and the side wall enclose an installation space, and the wireless charger is installed on the In the installation space.

Preferably, the wireless charger is a pie type wireless charger, and the pie type wireless charger is fixed in the installation space.

Preferably, an installation ring is protruded toward the installation space in the middle of the back of the support plate, and the wireless charger is installed in the installation ring.

Preferably, an opening is formed in the mounting ring, and the opening is directly opposite to the socket of the wireless charger fixed in the mounting ring.

Preferably, the mounting ring is provided with a pair of positioning pieces on opposite sides of the opening, and the pair of positioning pieces is used for positioning a plug inserted into the socket.

Preferably, the side wall is provided with a threading opening.

Preferably, a plurality of elastic positioning blocks are protrudingly arranged on the inner circumferential surface of the mounting ring, and these positioning blocks are used for clamping and fixing the wireless charger accommodated in the mounting ring.

Preferably, a plurality of elastic clamping beads are provided on the inner peripheral surface of the mounting ring, and these elastic clamping beads are used for clamping and fixing the wireless charger accommodated in the mounting ring.

Preferably, the mounting ring and/or the side wall are provided with a plurality of heat dissipation holes penetrating the mounting space.

Preferably, a rear surface of the support plate is provided with a cable management mechanism in the installation space, and the cable management mechanism is used to house a cable connected to the wireless charger.

Preferably, the cable management mechanism includes a cable management rod and a positioning hook protruding from the support plate, an end of the cable management rod away from the support plate is provided with a cable blocking plate, and the cable is wound around the On the cable management rod, the wire blocking plate prevents the cable from detaching from the cable management rod, and the positioning hook is used to position the cable to prevent the cable from moving.

Preferably, a back cover is provided on a side of the mounting ring away from the support plate, and the back cover is used to cover the wireless charger in the mounting ring.

Preferably, a hook is provided on the positioning frame.

The positioning frame on the front of the charging base of the wireless charging device of the present application can accommodate and position the mobile terminal device. A wireless charger is provided in the charging base. When the mobile terminal device is accommodated in the positioning frame, the The transmitter coil in the wireless charger aligns the receiver coil in the mobile terminal device, so that the transmitter coil and the receiver coil are inductively coupled to generate an induced voltage to charge the mobile terminal device. Since the positioning frame is provided on the charging base to facilitate positioning of the mobile terminal device, when the mobile terminal device is placed in the positioning frame for charging, there is no need for the user to manually align the receiving terminal coil and the wireless in the mobile terminal device. The transmitter terminal coil in the charger is completely aligned with the mobile terminal device placed in the positioning frame, which is convenient to use and accurately aligned, which improves the charging efficiency of the wireless charging device and generates less heat.

BRIEF DESCRIPTION

In order to more clearly explain the technical solutions in the embodiments of the present invention, the drawings required in the embodiments will be briefly described below. Obviously, the drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic front view of a wireless charging device according to a first embodiment of the present application.

FIG. 2 is an exploded schematic diagram of FIG. 1.

FIG. 3 is a schematic view of the rear perspective structure of the wireless charging device in FIG. 1.

FIG. 4 is an exploded schematic diagram of FIG. 3.

FIG. 5 is a schematic diagram of the use state of the wireless charging device according to the first embodiment of the present application.

6 is a schematic structural diagram of a charging stand of a wireless charging device in a second embodiment of the present application.

7 is a schematic structural diagram of a charging stand of a wireless charging device in a third embodiment of the present application.

8 is a schematic structural diagram of a charging stand of a wireless charging device in a fourth embodiment of the present application.

9 is a schematic structural diagram of a charging stand of a wireless charging device in a fifth embodiment of the present application.

10 is a schematic structural diagram of a charging stand of a wireless charging device in a sixth embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "left", and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for convenience. The present invention is described and the description simplified, rather than implying or indicating that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the term "thickness" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, not to imply Or the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

Please refer to FIG. 1 to FIG. 4 together. FIG. 1 is a schematic front view of the wireless charging device according to the first embodiment of the present application; FIG. 2 is an exploded schematic view of FIG. 1; FIG. Schematic structure; Figure 4 is an exploded view of Figure 3. The wireless charging device 100 in the first embodiment of the present application is used to charge a mobile terminal device 200 (as shown in FIG. 5) supporting wireless charging. The wireless charging device 100 includes a charging stand 30, which is provided in the A wireless charger 50 in the charging stand 30 and a USB cable 70. A positioning frame 32 for accommodating and positioning the mobile terminal device 200 is provided on the front of the charging stand 30. When the mobile terminal device 200 is accommodated in the positioning frame 32, the The transmitting end coil 51 for generating electromagnetic induction aligns the receiving end coil 201 in the mobile terminal device 200 for inductive coupling with the transmitting end coil 51.

The front side of the charging stand 30 in this embodiment refers to the side facing the mobile terminal device 200 during charging; the back side refers to the side facing away from the mobile terminal device 200.

In this embodiment, the wireless charger 50 is a pie-type wireless charger, and the wireless charger 50 is provided with a transmitter coil 51; the mobile terminal device 200 is provided with an induction with the transmitter coil 51 Coupling receiving coil 201. The mobile terminal device 200 is a smart phone. It can be understood that in other embodiments, the mobile terminal device 200 may be, but not limited to, a notebook, a Web browser, a pager, or a PDA of a global positioning system (GPS) receiver, etc.;

The positioning frame 32 on the front of the charging stand 30 of the wireless charging device 100 of the present application can accommodate and position the mobile terminal device 200. The charging stand 30 is provided with a wireless charger 50. When the mobile terminal device 200 is accommodated in the In the positioning frame 32, the transmitter coil 51 in the wireless charger 50 aligns the receiver coil 201 in the mobile terminal device 200, so that the transmitter coil 51 and the receiver coil 201 are inductively coupled to generate induction Voltage to charge the mobile terminal device 200. Since the positioning frame 32 is provided on the charging stand 30 to facilitate positioning of the mobile terminal device 200, when the mobile terminal device 200 is placed for charging, the user does not need to manually align the receiving end coil 201 in the mobile terminal device 200 The mobile terminal device 200 placed in the positioning frame 32 is completely aligned with the transmitter coil 51 in the wireless charger 50, which is convenient to use and accurately aligned, which improves the charging efficiency of the wireless charging device 100 and Less calories.

The positioning frame 32 includes a support plate 321 and a side wall 323 disposed on the peripheral edge of the front surface of the support plate 321. The support plate 321 and the side wall 323 enclose a receiving space 325, and the receiving space 325 It is used to house and locate the mobile terminal device 200.

Specifically, the support plate 321 has a rectangular shape, the side wall 323 extends vertically upward from opposite side edges and opposite end edges of the support plate 321, and the opposite ends of the side wall 323 on each side edge They are respectively connected to the side walls 323 on the edges of both ends. The cross section of the receiving space 325 is consistent with the cross section of the mobile terminal device 200. Specifically, the length of the cross section of the receiving space 325 is slightly greater than or equal to the corresponding cross section of the mobile terminal device 200 Length value; the width value of the cross-section of the receiving space 325 is slightly greater than or equal to the corresponding width value of the cross-section of the mobile terminal 200; thus allowing the mobile terminal device 200 to be freely placed in the receiving space 325 It can hold the receiving coil 201 of the mobile terminal device 200 and the transmitting coil 51 in the wireless charger 50 in position.

In other embodiments, different sizes of mobile terminal devices 200 are equipped with correspondingly sized storage spaces, and different shapes of mobile terminal devices 200 are equipped with correspondingly shaped storage spaces. Only after the mobile terminal device 200 is stored in the storage space, move The receiving end coil of the terminal device 200 and the transmitting end coil 51 in the wireless charger 50 are kept in alignment, and they can be accurately matched.

At least one notch 3231 is formed on the side wall 323, the notch 3231 penetrates the receiving space 325, and the mobile terminal device 200 is conveniently taken out or placed in the receiving space 325 through the notch 3231.

In this embodiment, the side walls 323 on the opposite sides of the support plate 321 are provided with two opposite notches 3231. The two notches 3231 are convenient for the user to take out or place the opposite sides of the mobile terminal device 200 The positioning frame 32 is easy to use. Each notch 3231 has a strip shape, and each notch 3231 extends to the front of the support plate 321.

As shown in FIG. 3, the side walls 323 around the support plate 321 extend a length toward the side facing away from the receiving space 325, so that the back of the support plate 321 and the side wall 323 form an installation space 326, the wireless charger 50 is disposed in the installation space 326. Further, the wireless charger 50 is fixed in the installation space 326.

In this embodiment, a mounting ring 3211 protrudes into the mounting space 326 from the middle of the back of the supporting plate 321, and the wireless charger 50 is mounted in the mounting ring 3211. The wireless charger 50 may be fixed in the mounting ring 3211 by interference fit, and the wireless charger 50 may also be fixed in the mounting ring 3211 by screwing, snapping, or gluing.

An opening 3213 is defined in the mounting ring 3211, the opening 3213 faces the socket 52 of the wireless charger 50 fixed in the mounting ring 3211, and one of the plugs of the USB cable 70 passes through the opening 3213 Insert into the socket 52. The mounting ring 3211 is provided with a pair of positioning pieces 3215 on opposite sides of the opening 3213. The pair of positioning pieces 3215 is used to position the one of the plugs inserted into the socket 52. A pair of the positioning pieces 3215 can prevent one of the plugs from moving. A threading port 3233 is defined in the side wall 323, and the threading port 3233 is used for passing the cable of the USB connection cable 70. Preferably, the threading port 3233 directly faces the opening 3213 on the mounting ring 3211.

The USB cable 70 includes a cable 72, a first plug 74 disposed at one end of the cable 72, and a second plug 76 disposed at the other end of the cable 72. The first plug 74 and the second plug 76 may be Type-A, Mini-A, Mini-B, Micro-B, or Type-C. In this embodiment, the first plug 74 is a Mini-A interface, and the second plug 76 is a Type-A interface. One end of the USB cable 70 provided with the first plug 74 passes through the threading port 3233 and the opening 3213, and then is inserted into the socket 52 of the wireless charger 50.

Please refer to FIG. 5. FIG. 5 is a schematic diagram of the use state of the wireless charging device according to the first embodiment of the present application. In use, the second plug 76 of the USB cable 70 is plugged into the power source, and the mobile terminal device 200 is placed in the receiving space 325 of the positioning frame 32. The receiving end coil 201 in the mobile terminal device 200 and the The transmitter coil 51 in the wireless charger 50 is directly opposite. The transmitter coil 51 generates electromagnetic induction and is inductively coupled with the receiver coil 201 in the mobile terminal device 200 to generate an induced voltage to charge the mobile terminal device 200. Since the positioning frame 32 can accommodate and position the mobile terminal device 200, and the receiving end coil 201 of the mobile terminal device 200 accommodated in the positioning frame 32 is consistent with the transmitting end coil 51 in the wireless charger 50 to maintain accuracy The docking ensures that wireless charging can be performed every time the mobile terminal device 200 is placed into the positioning frame 32, and due to accurate positioning, the wireless charging of the wireless charger 50 is more efficient and generates less heat.

Please refer to FIG. 6, which is a schematic structural diagram of a charging stand of a wireless charging device in a second embodiment of the present application. The structure of the second embodiment of the charging stand of the wireless charging device of the present application is similar to the structure of the first embodiment, except that in the second embodiment, the inner circumferential surface of the mounting ring 3211 is convexly provided Several elastic positioning blocks 3216 are used to fix the wireless charger 50 contained in the mounting ring 3211. Specifically, these positioning blocks 3216 are located on the side of the inner circumferential surface of the mounting ring 3211 away from the support plate 321, and are arranged along the circumferential direction. When the wireless charger 50 is accommodated in the mounting ring 3211, The positioning blocks 3216 are respectively locked on the sides of the wireless charger 50 facing away from the support plate 321. The side of each positioning block 3216 facing away from the support plate 321 is provided with a chamfer. Preferably, the chamfer is a rounded corner. During the installation of the wireless charger 50 into the mounting ring 3211, the outer peripheral surface of the wireless charger 50 pushes against the positioning blocks 3216, thereby elastically deforming the positioning blocks 3216, and the wireless charger 50 passes the positioning blocks by chamfering 3216 slides into the mounting ring 3211, and the positioning block 3216 elastically resets and snaps onto the wireless charger 50.

Please refer to FIG. 7, which is a schematic structural diagram of a charging stand of a wireless charging device in a third embodiment of the present application. The structure of the third embodiment of the charging stand of the wireless charging device of the present application is similar to the structure of the first embodiment, except that in the third embodiment, the inner circumferential surface of the mounting ring 3211 is provided with a number of Elastic clamping beads 3217. These elastic clamping beads 3217 are used to fix and hold the wireless charger 50 contained in the mounting ring 3211. Specifically, these clamping beads 3217 are located on the side of the inner circumferential surface of the mounting ring 3211 away from the support plate 321, and are arranged along the circumferential direction, and these clamping beads 3217 are located on the same horizontal plane. When the wireless charger 50 is accommodated in the mounting ring 3211, these clamping beads 3217 are respectively caught on the side of the wireless charger 50 facing away from the support plate 321. In the process of installing the wireless charger 50 into the mounting ring 3211, the outer peripheral surface of the wireless charger 50 pushes against these beads 3217, so that the elastic beads 3217 are retracted, and the wireless charger 50 passes over these beads 3217 Sliding into the mounting ring 3211, the clamping beads 3217 are elastically reset and extended so as to snap against the wireless charger 50.

Please refer to FIG. 8, which is a schematic structural diagram of a charging stand of a wireless charging device in a fourth embodiment of the present application. The structure of the fourth embodiment of the charging stand of the wireless charging device of the present application is similar to the structure of the first embodiment, except that in the fourth embodiment, the mounting ring 3211 and/or the side wall 323 A plurality of heat dissipation holes 327 are formed on the upper opening. The heat generated by the wireless charger 50 during charging is dissipated into the air through the heat dissipation holes 327, thereby improving the heat dissipation effect of the wireless charging device 100 and making the wireless charging device 100 work more stable.

Please refer to FIG. 9, which is a schematic structural diagram of a charging stand of a wireless charging device in a fifth embodiment of the present application. The structure of the fifth embodiment of the charging stand of the wireless charging device of the present application is similar to the structure of the first embodiment, except that in the fifth embodiment, the back of the support plate 321 is in the installation space 326 A cable management mechanism 328 is provided therein, and the cable management mechanism 328 is used to organize cables connected to the wireless charger 50. That is, when the cable 72 of the USB cable 70 is too long or the wireless charging device 100 is not used, the cable 72 can be stored on the cable management mechanism 328.

As shown in FIG. 9, the cable management mechanism 328 includes a cable management rod 3282 and a positioning hook 3284 protrudingly provided on the support plate 321, and an end of the cable management rod 3282 away from the support plate 321 is provided with a Shield 3283. The cable 72 can be wound around the cable management rod 3282, the wire blocking plate 3283 can prevent the cable 72 from detaching from the cable management rod 3282, the positioning hook 3284 is used to position the cable 72, The cable 72 is prevented from moving.

When using the cable management mechanism 328, first wrap the cable 72 around the cable management rod 3282, and the baffle plate 3283 can prevent the cable 72 from detaching from the cable management rod 3282; The end is snapped onto the positioning hook 3284 to prevent the cable 72 from moving out of the cable management rod 3282. At this time, the cable 72 is wound around the cable management rod 3282 and stored in the installation space 326 without occupying space, which is convenient for the user to find the USB cable 70 at any time and can also prevent the USB cable 70 Lost.

Please refer to FIG. 10, which is a schematic structural diagram of a charging stand of a wireless charging device in a sixth embodiment of the present application. The structure of the sixth embodiment of the charging stand of the wireless charging device of the present application is similar to the structure of the fifth embodiment, except that in the sixth embodiment, a hook 329 is provided on the positioning frame 32. When the wireless charging device 100 is not used, the wireless charging device 100 is hung at a designated position through the hook 329. When it is needed, it is convenient for the user to access and can reduce the loss due to the wireless charging device 100 being placed at will risk.

In other embodiments, a back cover is provided on a side of the mounting ring 3211 away from the support plate 321, and the back cover is used to cover the wireless charger 50 in the mounting ring 3211.

The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principles of the present invention, several improvements and retouches can be made. These improvements and retouches are also regarded as This is the protection scope of the present invention.

Claims

A wireless charging device for charging mobile terminal devices supporting wireless charging, characterized in that the wireless charging device includes a charging stand and a wireless charger provided in the charging stand, and the charging stand is provided with useful A positioning frame for accommodating and positioning the mobile terminal device, when the mobile terminal device is accommodated in the positioning frame, a pair of transmitting-end coils in the wireless charger for generating electromagnetic induction is located at the mobile terminal A receiver coil in the device for inductively coupling with the transmitter coil.
The wireless charging device according to claim 1, wherein the positioning frame includes a supporting plate and a side wall disposed on a peripheral edge of the front surface of the supporting plate, the supporting plate and the side wall enclose a receiving space. The mobile terminal device is accommodated and positioned in the accommodation space.
The wireless charging device according to claim 2, wherein at least one notch is formed in the side wall, the notch penetrates the receiving space, and the mobile terminal device is conveniently taken out or placed in the notch through the notch Containment space.
The wireless charging device according to claim 2, wherein the support plate is rectangular, and two opposite notches are provided on side walls on opposite sides of the support plate.
The wireless charging device according to claim 2, wherein the length and width of the storage space are slightly larger than the length and width of the corresponding size mobile terminal device.
The wireless charging device according to claim 2, wherein the size and shape of the storage space match the size and shape of the mobile terminal device stored in the storage space, so that the mobile terminal device can freely Put into the storage space, and can hold the receiving end coil of the mobile terminal device and the transmitting end coil in the wireless charger in position.
The wireless charging device according to claim 2, wherein the side wall of the support plate extends a length toward the side facing away from the receiving space, so that the back of the support plate surrounds the side wall Into an installation space, the wireless charger is installed in the installation space.
The wireless charging device according to claim 7, wherein the wireless charger is a pie-type wireless charger, and the pie-type wireless charger is fixed in the installation space.
The wireless charging device according to claim 8, wherein a mounting ring protrudes toward the installation space in the middle of the back surface of the support plate, and the wireless charger is installed in the mounting ring.
The wireless charging device according to claim 9, wherein the mounting ring defines an opening, the opening facing the socket of the wireless charger fixed in the mounting ring.
The wireless charging device according to claim 10, wherein the mounting ring is provided with a pair of positioning pieces on opposite sides of the opening, and a pair of the positioning pieces is used to position a pair of positioning pieces inserted into the socket plug.
The wireless charging device according to claim 10, wherein the side wall is provided with a threading opening.
The wireless charging device according to claim 9, characterized in that a plurality of elastic positioning blocks are protrudingly provided on the inner circumferential surface of the mounting ring, and these positioning blocks are used to clamp the wireless charging accommodated in the mounting ring Device.
The wireless charging device according to claim 9, wherein a plurality of elastic clamping beads are provided on the inner peripheral surface of the mounting ring, and these elastic clamping beads are used to fix the wireless storage contained in the mounting ring charger.
The wireless charging device according to claim 9, wherein the mounting ring and/or the side wall are provided with a plurality of heat dissipation holes penetrating the mounting space.
The wireless charging device according to claim 9, wherein a rear surface of the support plate is provided with a cable management mechanism in the installation space, and the cable management mechanism is used to store a cable connected to the wireless charger cable.
The wireless charging device according to claim 16, wherein the cable management mechanism includes a cable management rod and a positioning hook protruding from the support plate, and the end of the cable management rod away from the support plate is provided with A wire blocking plate, the cable is wound around the wire management rod, the wire blocking plate prevents the cable from detaching from the wire management rod, and the positioning hook is used to position the cable to prevent the cable from moving.
The wireless charging device according to claim 9, wherein a back cover is provided on a side of the mounting ring away from the support plate, the back cover is used to cover the wireless charger on the mounting ring Inside.
The wireless charging device according to claim 2, wherein a hook is provided on the positioning frame.