CN115276136A

CN115276136A - Casing, storage tank, electronic equipment and charging seat

Info

Publication number: CN115276136A
Application number: CN202110477241.5A
Authority: CN
Inventors: 李健雄; 邬程健
Original assignee: Shenzhen Goodix Technology Co Ltd
Current assignee: Shenzhen Goodix Technology Co Ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2022-11-01

Abstract

The application provides a shell, a containing groove, electronic equipment and a charging seat, wherein in the electronic equipment, a circuit assembly and a battery are arranged on the inner side of the inner wall surface of a side wall, and an NFC receiving antenna is arranged on the side wall of the shell in a surrounding mode, so that the NFC receiving antenna faces the outer wall surface of the side wall and forms a charging electromagnetic field with an NFC transmitting antenna; in the charging seat, the NFC transmitting antenna is arranged on the groove wall of the accommodating groove in a surrounding mode, so that the NFC transmitting antenna faces the inner groove surface of the groove wall to form a charging electromagnetic field with the NFC receiving antenna; the NFC control circuit is arranged on the base, or the NFC control circuit is arranged on the groove wall of the accommodating groove and is positioned on one side of the outer groove surface, close to the groove wall, of the NFC transmitting antenna. Based on the design, no metal component exists between the NFC transmitting antenna and the NFC receiving antenna, so that the energy transmission efficiency can be improved, and the NFC wireless charging efficiency is further improved.

Description

Casing, storage tank, electronic equipment and charging seat

Technical Field

The application relates to the technical field of near field communication, in particular to an electronic device with a near field communication charging function, a charging seat, a shell applied to the electronic device and a containing groove applied to the charging seat.

Background

Near Field Communication (NFC) is a contactless identification and interconnection technology, and different devices can communicate with each other through the NFC technology. At present, the NFC technology is widely applied to various smart devices, such as a notebook computer, a smart phone, and an intelligent wearable device, and a user can perform operations such as identity authentication and payment through the NFC function of the smart device.

To the intelligent wearing equipment that possesses the NFC function, for example intelligent wrist-watch, intelligent bracelet etc. can carry out wireless charging to this intelligent wearing equipment through the NFC technique.

However, based on the inner structure design of current intelligent wearing equipment and charging seat, there is the problem that wireless charging efficiency is low.

Disclosure of Invention

The application provides a casing, storage tank, electronic equipment and charging seat for solve the problem that prior art exists.

In a first aspect, the present application provides an electronic device comprising:

a display screen;

the circuit component is electrically connected with the display screen;

the battery is electrically connected with the display screen and the circuit component respectively;

a housing including a sidewall having a height and a thickness, the sidewall surrounding the display screen and forming the height in a direction perpendicular to a display surface of the display screen and forming the thickness in a direction parallel to the display surface,

the side wall comprises an inner wall surface close to the center direction of the shell and an outer wall surface far away from the center direction of the shell, and the circuit assembly and the battery are arranged on the inner side of the inner wall surface of the side wall;

the NFC receiving antenna is electrically connected with the circuit component and the battery respectively, and is used for being coupled with the NFC transmitting antenna of the charging seat and receiving energy from the NFC transmitting antenna;

the NFC receiving antenna is arranged on the side wall of the shell in a surrounding mode, so that the NFC receiving antenna faces the outer wall surface of the side wall and forms an electromagnetic field with the NFC transmitting antenna.

In some embodiments, the side wall further includes an upper end surface and a lower end surface connecting the inner wall surface and the outer wall surface, the housing further includes an upper cover and a lower cover, the upper cover and the lower cover are respectively connected with the upper end surface and the lower end surface of the side wall and jointly enclose an accommodating cavity, and the display screen, the circuit assembly and the battery are located in the accommodating cavity so that the display screen, the circuit assembly and the battery are located outside the charging magnetic field.

In some embodiments, the electronic device further comprises a first ferrite layer, the first ferrite layer is positioned on one side of the NFC receiving antenna close to the center direction of the accommodating cavity, and the first ferrite layer is arranged around the circuit assembly and the outer side of the battery.

In some embodiments, the circuit assembly includes an NFC charging circuit, the NFC receive antenna includes two antenna terminals, and the NFC charging circuit is electrically connected to the two antenna terminals, respectively.

In some embodiments, the circuit assembly further comprises an NFC communication circuit electrically connected to the two antenna endpoints, respectively;

the NFC communication circuit is further connected with the NFC charging circuit and is used for controlling the working state of the NFC charging circuit.

In some embodiments, a maximum distance between an outer wall surface of the sidewall and the NFC receive antenna is less than an effective electromagnetic coupling distance between the NFC receive antenna and the NFC transmit antenna.

In some embodiments, the NFC receive antenna comprises at least one turn of a coil.

In some embodiments, the NFC receive antenna includes at least one surrounding segment that surrounds the sidewall.

In some embodiments, the NFC receiving antenna includes a connection section and two surrounding sections, the two surrounding sections are respectively disposed at upper and lower opposite ends of the side wall, the connection section is connected between the two surrounding sections, and the connection section extends along a vertical direction of a display surface of the display screen.

In some embodiments, two antenna end points of the NFC receiving antenna are respectively connected to one end part of each of the two surrounding segments;

the antenna comprises a connecting section and two surrounding sections, wherein the connecting section is connected to the other end parts of the two surrounding sections, and the other end parts of the two surrounding sections are not connected with the antenna end points, so that the two surrounding sections and the connecting section jointly form a passage between the two antenna end points.

In some embodiments, two antenna terminals of the NFC receiving antenna are connected to two ends of the same one of the two surrounding segments;

and the other surrounding section of the two surrounding sections is connected with the surrounding section connected with the antenna end point through the connecting section, so that the two surrounding sections and the connecting section jointly form a passage between the two antenna end points.

In some embodiments, the NFC receiving antenna is disposed on a flexible circuit board, and the flexible circuit board is attached to an inner wall surface of the side wall;

the side walls are made of a non-electromagnetic shielding material.

In some embodiments, the side wall is made of a conductive material, and the NFC receiving antenna is obtained by hollowing out the side wall.

In some embodiments, two of the antenna terminals of the NFC receiving antenna are connected to the circuit component by a conductive fastener or a conductive elastic piece.

In a second aspect, the present application provides a charging dock, comprising:

a base;

the electronic equipment comprises a base, a containing groove and a display screen, wherein the containing groove is arranged on the base, the wall of the containing groove surrounds an opening for electronic equipment to enter, the wall of the containing groove comprises an inner groove surface close to the center direction of the containing groove and an outer groove surface far away from the center direction of the containing groove, and when the electronic equipment is positioned in the containing groove, the display screen of the electronic equipment faces or faces away from the opening;

an NFC control circuit;

the NFC transmitting antenna is connected with the NFC control circuit, is used for being coupled with an NFC receiving antenna in the electronic equipment and sends energy to the NFC receiving antenna under the control of the NFC control circuit;

the NFC transmitting antenna is arranged on the groove wall of the accommodating groove in a surrounding mode, so that the NFC transmitting antenna faces to the inner groove surface of the groove wall and forms an electromagnetic field with the NFC receiving antenna;

the NFC control circuit is arranged on the base, or the NFC control circuit is arranged on the groove wall of the accommodating groove and is positioned on one side, close to the outer groove surface of the groove wall, of the NFC transmitting antenna.

In some embodiments, the groove wall of the receiving groove extends in a groove depth direction.

In some embodiments, the shape of the receiving groove matches the shape of the electronic device.

In some embodiments, the charging stand further comprises a second ferrite layer disposed on a slot wall of the receiving slot and located on a side of the NFC transmitting antenna close to an outer slot surface of the slot wall;

when the NFC control circuit is arranged on the groove wall of the accommodating groove, the second ferrite layer is positioned between the NFC transmitting antenna and the NFC control circuit.

In some embodiments, the NFC transmit antenna comprises at least one turn of a coil.

In some embodiments, the NFC transmit antenna includes at least one surrounding segment.

In some embodiments, the NFC transmitting antenna includes a connecting section and two surrounding sections, the two surrounding sections are respectively disposed at two opposite ends of the slot wall, the connecting section is connected between the two surrounding sections, and the connecting section extends along the slot depth direction of the receiving slot.

In some embodiments, two antenna end points of the NFC transmitting antenna are respectively connected to one end of each of the two surrounding segments;

In some embodiments, two antenna terminals of the NFC transmitting antenna are connected to two ends of the same one of the two surrounding segments;

In some embodiments, the NFC transmitting antenna is disposed on a flexible circuit board, and the flexible circuit board is attached to an inner slot surface of the slot wall;

the tank walls are made of a non-electromagnetic shielding material.

In some embodiments, the slot wall is made of a conductive material, and the NFC transmitting antenna is obtained by hollowing out the slot wall.

In some embodiments, two antenna endpoints of the NFC transmitting antenna are connected with the NFC control circuit through a conductive fastener or a conductive spring.

In a third aspect, the present application provides a housing, applied to an electronic device, where the electronic device further includes a display screen, a circuit component, a battery, and an NFC receiving antenna, where the NFC receiving antenna is electrically connected to the circuit component and the battery, respectively, and the NFC receiving antenna is configured to couple with an NFC transmitting antenna of a charging dock and receive energy from the NFC transmitting antenna;

the housing includes: a sidewall having a height and a thickness;

the side wall surrounds the display screen, the height is formed along the vertical direction of the display surface of the display screen, the thickness is formed along the parallel direction of the display surface,

the side walls are made of a non-electromagnetic shielding material.

In a fourth aspect, the present application provides a storage tank applied to a charging dock, where the charging dock further includes a base, an NFC control circuit, and an NFC transmitting antenna, where the NFC transmitting antenna is connected to the NFC control circuit, and the NFC transmitting antenna is configured to couple with an NFC receiving antenna in an electronic device, and send energy to the NFC receiving antenna under the control of the NFC control circuit;

the accommodating groove is arranged on the base;

an opening for electronic equipment to enter is surrounded by the groove wall of the accommodating groove, the groove wall comprises an inner groove surface close to the center direction of the accommodating groove and an outer groove surface far away from the center direction of the accommodating groove, and when the electronic equipment is positioned in the accommodating groove, the display screen of the electronic equipment faces or faces away from the opening;

the NFC transmitting antenna is arranged on the groove wall of the accommodating groove in a surrounding mode, so that the NFC transmitting antenna faces the inner groove surface of the groove wall and forms an electromagnetic field with the NFC receiving antenna;

In some embodiments, the shape of the accommodating groove matches the shape of the electronic device.

the tank walls are made of a non-electromagnetic shielding material.

According to the shell, the accommodating groove, the electronic device and the charging seat, in the electronic device, the circuit component and the battery are arranged on the inner side of the inner wall surface of the side wall, and the NFC receiving antenna is arranged on the side wall of the shell in a surrounding mode, so that the NFC receiving antenna faces the outer wall surface of the side wall and forms a charging electromagnetic field with the NFC transmitting antenna; in the charging seat, the NFC transmitting antenna is arranged on the groove wall of the accommodating groove in a surrounding mode, so that the NFC transmitting antenna faces the inner groove surface of the groove wall to form a charging electromagnetic field with the NFC receiving antenna; the NFC control circuit is arranged on the base, or the NFC control circuit is arranged on the groove wall of the accommodating groove and is positioned on one side of the outer groove surface, close to the groove wall, of the NFC transmitting antenna. Based on the above design, when electronic equipment was located the storage tank of charging seat, the NFC transmitting antenna of charging seat and electronic equipment's NFC receiving antenna can carry out the coupling, and NFC transmitting antenna can send energy to NFC receiving antenna to realize that NFC is wireless to charge. Because the NFC receiving antenna sets up at the lateral wall, form the magnetic field that charges between its and the charging seat NFC transmitting antenna in the outside to electronic equipment's display screen, circuit component, battery etc. contain the part of metal composition because of being located the lateral wall inboard and be in outside the magnetic field that charges, reduce in the electronic equipment because of the metal composition produces the counteraction of vortex to the magnetic field that charges, thereby can improve the energy transmission efficiency between the NFC antenna, and then improve the charging seat and carry out the wireless efficiency that charges of NFC to electronic equipment.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram illustrating coupling of an NFC wireless charging coil during NFC wireless charging in the prior art;

fig. 2 is a schematic diagram illustrating NFC wireless charging of an electronic device from a front side of the electronic device by a charging dock according to the prior art;

fig. 3 is a schematic diagram illustrating NFC wireless charging of an electronic device from the back of the electronic device by a charging cradle according to the prior art;

fig. 4a is a schematic structural diagram of an electronic device and a charging stand according to an embodiment of the present disclosure;

fig. 4b is another schematic structural diagram of an electronic device and a charging stand according to an embodiment of the present disclosure;

fig. 4c is another schematic structural diagram of an electronic device and a charging stand according to an embodiment of the present disclosure;

fig. 5 is a schematic view showing the arrangement positions of the first ferrite layer and the second ferrite layer in the embodiment of the present application;

fig. 6a is a schematic diagram illustrating a positional relationship between an electronic device and a charging stand during wireless charging according to an embodiment of the present disclosure;

FIG. 6b is a schematic structural diagram of the charging stand in FIG. 6 a;

FIG. 6c is a schematic diagram of the electronic device in FIG. 6 a;

FIG. 6d is a schematic diagram illustrating the magnetic coupling between the electronic device shown in FIGS. 6a to 6c and the antenna of the charging dock according to an embodiment of the present disclosure;

fig. 7 is a schematic circuit diagram of a charging stand and an electronic device according to an embodiment of the present disclosure;

fig. 8a is another schematic diagram illustrating a positional relationship between an electronic device and a charging stand during wireless charging according to an embodiment of the present disclosure;

FIG. 8b is a schematic structural diagram of the charging stand in FIG. 8 a;

FIG. 8c is a schematic diagram of the electronic device in FIG. 8 a;

FIG. 8d is a schematic diagram illustrating the magnetic coupling between the electronic device shown in FIGS. 8a to 8c and the antenna of the charging dock according to an embodiment of the present disclosure;

fig. 9a is another schematic diagram illustrating a positional relationship between an electronic device and a charging stand during wireless charging according to an embodiment of the present disclosure;

FIG. 9b is a schematic diagram of the charging seat shown in FIG. 9 a;

FIG. 9c is a schematic structural diagram of the electronic device in FIG. 9 a;

FIG. 9d is a schematic diagram illustrating the magnetic coupling between the electronic device shown in FIGS. 9a to 9c and the antenna of the charging dock according to an embodiment of the present disclosure;

fig. 10a is another schematic diagram illustrating a positional relationship between an electronic device and a charging stand during wireless charging according to an embodiment of the present disclosure;

FIG. 10b is a schematic structural diagram of the charging stand in FIG. 10 a;

FIG. 10c is a schematic structural diagram of the electronic device in FIG. 10 a;

FIG. 10d is a diagram illustrating magnetic coupling between the electronic device shown in FIGS. 10 a-10 c and an antenna of a charging dock according to an embodiment of the present application;

fig. 11a is another schematic diagram illustrating a positional relationship between an electronic device and a charging stand during wireless charging according to an embodiment of the present disclosure;

FIG. 11b is a schematic structural diagram of the charging stand in FIG. 11 a;

FIG. 11c is a schematic structural diagram of the electronic device in FIG. 11 a;

fig. 11d is a schematic diagram of the magnetic coupling between the electronic device shown in fig. 11a to 11c and the antenna of the charging dock according to the embodiment of the present disclosure.

With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the embodiments of the present application, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of additional like elements in a commodity or system comprising the element.

The NFC wireless charging scheme is an effective mode for solving the power supply problems of intelligent wearable devices such as intelligent watches, intelligent bracelets, active pens, intelligent glasses and small intelligent devices, and a user can perform NFC wireless charging on the electronic equipment through an NFC wireless charging seat.

The principle of the NFC wireless charging mode is as follows: under the state that an NFC receiving coil in the electronic equipment is coupled with an NFC transmitting coil in a charging seat, if alternating current with certain frequency is provided for the NFC transmitting coil, certain current can be generated in the NFC receiving coil through electromagnetic induction, the current is subjected to resonant amplification by a resonant matching circuit of the electronic equipment, is rectified into direct current through a rectifier bridge and is transmitted to a Battery Management Unit (BMU), the BMU controls the magnitude of the charged current to charge a Battery of the electronic equipment, and the Battery of the electronic equipment can be used for supplying power to various electronic function modules in the electronic equipment, so that energy can be transferred from the charging seat to the electronic equipment.

Fig. 1 is a schematic diagram of NFC coils coupling when NFC wireless charging is performed in the prior art, and as shown in fig. 1, an NFC transmitting coil is provided in a charging base, an NFC receiving coil is provided in an electronic device, and the two types of NFC coils are coupled in a planar manner, so that NFC wireless charging is achieved through electromagnetic induction (a curve with an arrow in the drawing represents a magnetic field).

A front surface of a Display screen of an electronic device is defined, fig. 2 is a schematic diagram of wirelessly charging the electronic device from the front surface of the electronic device through a charging seat in the prior art, and fig. 3 is a schematic diagram of wirelessly charging the electronic device from the back surface of the electronic device through the charging seat in the prior art, as shown in fig. 2 and fig. 3, the charging seat includes an NFC transmitting coil and a ferrite layer, and the electronic device generally includes a Display screen, an NFC receiving coil, a ferrite layer, a battery, a circuit board, and a rear cover, which are sequentially disposed from the front surface to the top, where the Display screen may be an Organic Light-Emitting Diode (OLED) screen or a Liquid Crystal Display (LCD) screen.

Referring to fig. 2, when the electronic device is wirelessly charged from the front side by the charging stand, if the coil coupling manner shown in fig. 1 is adopted, a display screen exists between the NFC transmitting coil and the NFC receiving coil, and because the display screen usually contains metal components (for example, the screen is made to contain iron), under the action of a changing magnetic field, the metal components can generate eddy currents, the direction of the eddy currents is opposite to the direction of the magnetic field, so that a certain counteracting effect can be exerted on the magnetic field, and energy is consumed in a heat energy manner, thereby affecting energy transmission when the NFC transmitting coil and the NFC receiving coil are wirelessly charged, and reducing the efficiency of NFC wireless charging.

Referring to fig. 3, when the electronic device is wirelessly charged from the back side by the charging stand, if the coil coupling method shown in fig. 1 is employed, a battery and a circuit board are present between the NFC transmission coil and the NFC reception coil, and the above structure usually contains a metal component, so that the efficiency of NFC wireless charging is also reduced by the back side charging for the same reason as the front side charging.

The application provides an electronic device and a charging seat, which aim to solve the technical problems in the prior art.

The main conception of the scheme of the application is as follows: through setting up the position and adjusting the position that sets up of NFC transmitting coil in the charging seat to NFC receiving coil in the electronic equipment, specifically be the lateral wall of setting up the NFC receiving coil in electronic equipment's casing, set up the NFC transmitting coil in the cell wall that the charging seat is used for holding electronic equipment's storage tank, make NFC transmitting coil can carry out the coupling with NFC receiving coil, in addition, the part that contains metal composition in the electronic equipment and the part that contains metal composition in the charging seat are outside the magnetic field that charges that NFC transmitting coil and NFC receiving coil formed, can reduce in the electronic equipment because of metal composition produces the counteraction of vortex to magnetic field that charges, thereby can improve the energy transmission efficiency of NFC antenna, and then improve the wireless efficiency that charges of NFC.

The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments. These several specific embodiments may be combined with each other below, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.

In some embodiments, an electronic device and charging cradle with near field communication charging function are provided.

Fig. 4a is a schematic structural diagram of an electronic device and a charging dock according to an embodiment of the present disclosure, and as shown in fig. 4a, the electronic device 20 includes:

a display screen 26 for displaying content for viewing by a user;

the circuit component 23 is electrically connected with the display screen (for easy understanding, the electrical connections in the drawings are not shown) so as to realize the device functions corresponding to the electronic device, and send the content to be displayed to the display screen for displaying;

the battery 24 is respectively and electrically connected with the display screen and the circuit component to realize the power supply function;

and a housing 21 for accommodating and protecting the internal structure of the device. The housing includes a sidewall 21a having a height and a thickness, the sidewall surrounding the display screen and forming a height in a vertical direction of a display surface of the display screen, such as height H in fig. 4a, and a thickness in a parallel direction of the display surface, such as thickness W in fig. 4 a.

The side wall comprises an inner wall surface 21aa close to the center direction of the shell and an outer wall surface 21ab far away from the center direction of the shell, and the circuit assembly and the battery are arranged on the inner side of the inner wall surface of the side wall;

a NFC receiving antenna 22 for NFC, which is electrically connected to the circuit component and the battery, and is used for coupling with the NFC transmitting antenna of the charging dock and receiving energy from the NFC transmitting antenna;

the NFC receiving antenna is arranged on the side wall of the shell in a surrounding mode, so that the NFC receiving antenna faces the outer wall surface of the side wall to form a charging electromagnetic field with the NFC transmitting antenna.

Correspondingly, this embodiment further provides a charging socket matched with the electronic device, for performing NFC wireless charging on the electronic device, and referring to fig. 4a, the charging socket 10 includes:

a base 14 for supporting and carrying;

the electronic equipment comprises a base, a containing groove 11 arranged on the base, wherein the wall of the containing groove surrounds an opening for electronic equipment to enter, the wall of the containing groove comprises an inner groove surface 11a close to the center direction of the containing groove and an outer groove surface 11b far away from the center direction of the containing groove, and when the electronic equipment is positioned in the containing groove, a display screen of the electronic equipment faces or faces away from the opening;

an NFC control circuit 13 for implementing a control function;

the NFC transmitting antenna 12 is connected with the NFC control circuit, is used for being coupled with an NFC receiving antenna in the electronic equipment and sends energy to the NFC receiving antenna under the control of the NFC control circuit;

the NFC transmitting antenna is arranged on the groove wall of the accommodating groove in a surrounding mode, so that the NFC transmitting antenna faces towards the inner groove surface of the groove wall to form an electromagnetic field with the NFC receiving antenna;

the setting position of the NFC control circuit can be set according to the fact that the groove wall of the containing groove is of a solid/hollow structure, wherein the fact that the groove wall is of the solid structure means that no space capable of containing objects exists between the inner groove surface and the outer groove surface; the groove wall is of a hollow structure, which means that a space capable of accommodating objects exists between the inner groove surface and the outer groove surface.

Specifically, when the groove wall is of a solid structure, the NFC control circuit is arranged on the base; when the slot wall is a hollow structure, the NFC control circuit may be disposed on the base or on the slot wall of the accommodating slot and located on one side of the NFC transmitting antenna close to the outer slot surface of the slot wall.

The electronic device and the charging stand proposed according to the embodiment:

in the electronic device, since the NFC receiver antenna is coupled to the NFC transmitter antenna toward the outer wall surface of the side wall (i.e., in the outward direction of the side wall), and the structures including metal components, such as the display, the circuit module, and the battery, are all disposed inside the inner wall surface of the side wall (i.e., in the inward direction of the side wall), the NFC receiver antenna does not have a metal component in the direction of coupling with the NFC transmitter antenna outward;

in the charging stand, the NFC transmitting antenna is coupled to the NFC receiving antenna on the inner groove surface of the groove wall (i.e., in the direction of the inner portion of the groove wall), and the NFC control circuit or the like, for example, is configured to include a component and is provided in the base below the groove wall or on the side of the groove wall close to the outer groove surface (i.e., in the direction of the outer portion of the groove wall).

Thereby, realize carrying out the in-process that NFC wirelessly charged to electronic equipment through the charging seat, the part that contains the metallic component in the electronic equipment and the part that contains the metallic component in the charging seat are outside the magnetic field that charges that NFC transmitting coil and NFC receiving coil formed, can reduce in the electronic equipment because of the metallic component produces the counteraction of vortex to the magnetic field that charges to can improve the energy transmission efficiency of NFC antenna, and then improve the efficiency that NFC wirelessly charged.

Fig. 4b is another schematic structural diagram of the electronic device and the charging stand according to the embodiment of the disclosure, and as shown in fig. 4b, the electronic device further includes a first ferrite layer 25, the first ferrite layer is located on one side of the NFC receiving antenna close to the center direction of the accommodating cavity, and the first ferrite layer is disposed around the circuit component and the outer side of the battery.

Specifically, in the process of performing NFC wireless charging, the energy transmission efficiency between the charging stand and the electronic device is mainly determined by the coupling coefficient between the NFC antennas and the quality factor of the NFC antennas, and the greater the coupling coefficient between the NFC transmitting antenna and the NFC receiving antenna is, the higher the quality factor is, the higher the energy transmission efficiency is. The inductance of the NFC receiving antenna can be increased by introducing the first ferrite layer, so that the quality factor of the NFC receiving antenna is improved. Meanwhile, the first ferrite layer may reflect the magnetic field so that the magnetic field is concentrated between the NFC transmitting antenna and the NFC receiving antenna, thereby increasing magnetic fluxes of the NFC transmitting antenna and the NFC receiving antenna. Therefore, by introducing the first ferrite layer, it is possible to contribute to an improvement in energy transfer efficiency between the charging cradle and the electronic device.

In some embodiments, referring to fig. 4b, the charging stand further includes a second ferrite layer 15 disposed on the slot wall of the accommodating slot and located on one side of the NFC transmitting antenna close to the outer slot surface of the slot wall;

the inductance of the NFC transmitting antenna can be increased by introducing the second ferrite layer in the embodiment, so that the quality factor of the NFC transmitting antenna is improved. Meanwhile, the first ferrite layer may reflect the magnetic field so that the magnetic field is concentrated between the NFC transmitting antenna and the NFC receiving antenna, thereby increasing magnetic fluxes of the NFC transmitting antenna and the NFC receiving antenna. Therefore, by introducing the second ferrite layer, it is possible to contribute to an improvement in the energy transfer efficiency between the charging cradle and the electronic device.

Optionally, referring to fig. 4b, when the NFC control circuit is disposed on the slot wall of the accommodating slot, that is, the slot wall is a hollow structure, the second ferrite layer is located between the NFC transmitting antenna and the NFC control circuit, so as to improve energy transmission efficiency.

Optionally, fig. 4c is another schematic structural diagram of the electronic device and the charging seat provided in the embodiment of the present application, and as shown in fig. 4c, when the slot wall is a solid structure, that is, the NFC control circuit is disposed on the base, the second ferrite layer may be disposed on the outer slot surface of the slot wall, so as to improve the energy transmission efficiency.

Fig. 5 is a schematic view showing the arrangement positions of the first ferrite layer and the second ferrite layer in the embodiment of the present application, and is explained in a top view for easy understanding.

As shown in fig. 5, the electronic device 20 includes a side wall 21a of the housing 21, the NFC reception antenna 22, and the first ferrite layer 25. The NFC receiving antenna 22 may be attached to an inner wall surface of the side wall 21a, the side wall 21a and a display screen (not shown in the figure) jointly enclose a circular accommodating cavity with a point O as a center, the first ferrite layer 25 is located on one side of the NFC receiving antenna 22 close to the point O, and the first ferrite layer 25 may be attached to the NFC receiving antenna 22, for example.

Referring to fig. 5, the charging stand 10 includes a receiving slot 11, an NFC transmitting antenna 12 and a second ferrite layer 15, and a slot wall of the receiving slot 11 includes an inner slot surface 11a and an outer slot surface 11b. The receiving slot 11 may be considered to be centered at the point O, and explained by taking the slot wall as a hollow structure as an example, the NFC transmitting antenna 12 may be attached to one side of the inner slot surface 11a away from the point O, that is, the NFC transmitting antenna 12 is disposed between the inner slot surface 11a and the outer slot surface 11b, and the second ferrite layer 15 is disposed between the NFC transmitting antenna 12 and the outer slot surface 11b.

It is understood that the structure containing the metal component in the electronic device 20, such as the circuit component and the battery, may be disposed on the side of the first ferrite layer 25 close to the point O direction; the structure of the charging stand 10 containing the metal component, for example, the NFC control circuit, may be provided on the side of the second ferrite layer 15 away from the point O direction, that is, between the second ferrite layer 15 and the outer groove surface 11b, or may be provided in the base of the charging stand 10.

Therefore, based on the structure shown in fig. 5, when NFC wireless charging is performed, no metal component exists between the NFC receiving antenna 22 and the NFC transmitting antenna 12, so that the problem of low NFC wireless charging efficiency due to the existence of the metal component can be avoided; moreover, the ferrite layer can be used for further improving the transmission efficiency of signals and energy between the NFC transmitting antenna and the NFC receiving antenna.

In some embodiments, the groove wall of the accommodating groove extends along the groove depth direction, so that the accommodating groove has a certain depth, and is convenient for accommodating electronic equipment.

In some embodiments, the shape of the accommodating groove is matched with the shape of the electronic device, so that the electronic device needing to be wirelessly charged can be conveniently placed.

The utility model discloses a display screen cover, including the casing, the lateral wall of casing includes relative up end and lower terminal surface among the electronic equipment, and the up end is relative up one side when the user dresses electronic equipment, and the terminal surface is relative down one side when the user dresses electronic equipment down, consequently, the up end of lateral wall is located to the display screen lid among the electronic equipment to be convenient for the user to look over the content that the display screen shows.

In addition, the shell comprises an upper cover and a lower cover, the upper cover can be of a transparent structure, and the upper cover is covered above the display screen to protect the display screen. The upper cover and the lower cover are respectively connected with the upper end face and the lower end face of the side wall and jointly enclose an accommodating cavity, and the display screen, the circuit assembly and the battery are located in the accommodating cavity, so that the shell can protect other structures arranged in the accommodating cavity. Specifically, the Circuit module is, for example, a Circuit Board (PCB) provided with Circuit elements.

Referring to fig. 3, in the prior art, since the NFC receiving coil is disposed above the circuit board and the battery, when the electronic device is wirelessly charged in a back charging mode, the circuit board and the battery are located between the NFC receiving coil and the NFC transmitting coil, so that the NFC wireless charging efficiency is reduced. However, the NFC antenna in this embodiment is enclosed outside the circuit device and the battery, but not above the circuit device and the battery, so that when the charging seat is used to wirelessly charge the electronic device, the circuit device and the battery are not located between the NFC transmitting antenna and the NFC receiving antenna, and therefore, the circuit device and the battery do not affect the NFC wireless charging efficiency.

Specifically, when the electronic device has the NFC wireless charging function, the circuit component includes an NFC charging circuit, and the NFC charging circuit may be electrically connected to two antenna terminals of the NFC receiving antenna and the battery inside the electronic device, respectively. When charging the electronic equipment through the charging seat, the electric energy that NFC receiving antenna received can transmit to the battery via this NFC charging circuit to charge this battery, realize the wireless function of charging of NFC.

In some embodiments, the circuit assembly further comprises an NFC communication circuit electrically connected to the two antenna endpoints, respectively; the NFC communication circuit is further connected with the NFC charging circuit and is used for controlling the working state of the NFC charging circuit.

Specifically, when the electronic device has the NFC wireless charging function and the NFC communication function, the circuit component of the electronic device further includes an NFC communication circuit in addition to the NFC charging circuit, and the NFC communication circuit may be electrically connected to two antenna end points of the NFC antenna, respectively, so that the NFC communication circuit may transmit and receive communication data through the NFC antenna.

It can be understood that, because a wireless communication function needs to be realized, an NFC chip is provided in the NFC communication circuit, and meanwhile, the NFC communication circuit is further connected to an NFC charging circuit. Because NFC communication circuit and NFC charging circuit all are connected with two antenna end points of NFC antenna among the electronic equipment, and the NFC antenna can only provide working signal for a kind of circuit at the same moment, that is to say, can't carry out NFC wireless charging when realizing the wireless communication function through the NFC antenna, can't carry out wireless communication when realizing the wireless charging function of NFC through the NFC antenna, therefore, can be connected NFC communication circuit and NFC charging circuit, thereby, control the operating condition of NFC charging circuit through the NFC chip, make electronic equipment "communication is not charged, the non-communication that charges", guarantee that electronic equipment can normally realize various functions.

In some embodiments, the maximum distance between the outer wall surface of the side wall of the housing and the NFC receiving antenna in the electronic device should be less than the effective electromagnetic coupling distance between the NFC transmitting antenna and the NFC receiving antenna.

Specifically, because there is still a certain distance between the outer wall of the lateral wall of the casing in the electronic device and the NFC transmitting antenna, for example, there is a distance between the lateral wall 21a and the NFC transmitting antenna 12 in fig. 5, when the NFC receiving antenna is disposed on the lateral wall of the casing in the electronic device, the maximum distance between the outer wall of the lateral wall of the casing and the NFC receiving antenna should be less than the effective electromagnetic coupling distance between the NFC transmitting antenna and the NFC receiving antenna, thereby, it is ensured that the distance between the NFC receiving antenna in the electronic device and the NFC transmitting antenna in the charging dock is within the effective electromagnetic coupling distance range, thereby ensuring the coupling effect, and improving the NFC wireless charging efficiency.

Fig. 6a is a schematic diagram of a positional relationship between an electronic device and a charging seat when performing wireless charging in an embodiment of the present application, fig. 6b is a schematic diagram of a structure of the charging seat in fig. 6a, and fig. 6c is a schematic diagram of a structure of the electronic device in fig. 6a, as shown in fig. 6a to 6c, the charging seat 10 includes a receiving slot 11, the receiving slot 11 has a surrounding slot wall and a base (not labeled in the drawings) connected to the slot wall, where the slot wall can be regarded as a surrounding structure extending upward from the base, and the slot wall has a certain height in an extending direction (i.e., a slot depth direction), and the height can be set according to a thickness range of the electronic device supported by the charging seat 10 to perform NFC wireless charging; the groove wall has a certain shape and circumference in its circumferential direction, for example a circular circumference. The NFC transmitting antenna 12 forms a loop structure along the groove wall of the accommodating groove. The NFC transmit antenna 12 includes two antenna endpoints, ant1 and Ant2, respectively.

Referring to fig. 6a to 6c, the electronic device 20 includes a housing 21, a NFC receiving antenna 22 is disposed around a sidewall of the housing 21, and the NFC receiving antenna 22 includes two antenna terminals Ant3 and Ant4.

Fig. 6d is a schematic view of the coupling between the electronic device and the antenna magnetic field of the charging seat shown in fig. 6a to 6c in the embodiment of the present application, for convenience of distinguishing, the NFC transmitting antenna 12 is shown by a solid line, and the NFC receiving antenna 22 is shown by a dotted line, as shown in fig. 6d, when performing wireless charging, the electronic device 20 is partially or completely located in the accommodating groove 11, so that a groove wall of the accommodating groove 11 of the charging seat 10 is close to a side wall of the housing 21 of the electronic device 20, so that the NFC transmitting antenna 12 is close to the NFC receiving antenna 22 for coupling, and thus through an electromagnetic induction effect, the charging seat 10 can perform energy transmission on the electronic device 20, thereby implementing wireless charging.

In addition, for the structure containing the metal component in the charging stand 10, such as the NFC control circuit, it is disposed on the base, i.e., below the NFC transmitting antenna 12; or, the NFC antenna is disposed on a groove wall of the accommodating groove, and is located on one side of the NFC transmitting antenna 12 close to the outer groove surface of the groove wall, that is, disposed on the periphery of the NFC transmitting antenna 12.

For the structure containing the metal component in the electronic device 20, such as the circuit component and the battery, it is disposed inside the inner wall surface of the sidewall, that is, on the side inward of the NFC receiving antenna 22.

Therefore, through the above structural design, no metal component exists between the NFC transmitting antenna 12 and the NFC receiving antenna 22, so that the problem of low NFC wireless charging efficiency due to the existence of the metal component can be avoided, and therefore, the energy transmission efficiency between the NFC antennas can be improved, and further, the efficiency of the charging stand for wirelessly charging the electronic device is improved.

It should be noted that, in the embodiment of the present application, the design shapes of the NFC transmitting antenna 12 in the charging cradle 10 and the NFC receiving antenna 22 in the electronic device 20 may be the same, but, in the actual design, the size of the NFC transmitting antenna 12 may be slightly larger than that of the NFC receiving antenna 22, so as to obtain an antenna coupling coefficient as large as possible, thereby improving the energy transmission efficiency.

Fig. 7 is a schematic circuit diagram of a charging seat and an electronic device in an embodiment of the present application, which is explained by taking an example that the electronic device has both an NFC wireless charging function and an NFC communication function, as shown in fig. 7, the charging seat includes an NFC control circuit 13, the NFC control circuit 13 is connected to an NFC transmitting antenna 12, the NFC control circuit 13 specifically includes a first NFC chip 131 and a first matching circuit 132, the first NFC chip 131 is connected to the first matching circuit 132 through pins such as TxP, txN, rxP, rxN, and the like, and the first matching circuit 132 is connected to the NFC transmitting antenna 12.

The TxP pin and the TxN pin are used for sending signals, P in the TxP represents a positive end of differential driving, and N in the TxN represents a negative end of the differential driving; rxP and RxN pins are used for receiving signals, P in RxP represents the positive terminal of the differential receiving circuit, and N in RxN represents the negative terminal of the differential receiving circuit.

Specifically, when the NFC communication function is implemented, txP and TxN pins of the first NFC chip 131 may be used to send a modulation signal, and after filtering and resonant matching by the first matching circuit 132, the modulation signal is sent to the electronic device through the NFC transmitting antenna 12, and the NFC communication circuit of the electronic device analyzes and processes the received modulation signal to obtain a modulation signal sent by the charging dock; the RxP and RxN of the first NFC chip 131 are used for receiving the modulated signal transmitted by the electronic device, so as to implement NFC communication between the charging cradle and the electronic device.

In addition, when the NFC wireless charging function is implemented, the TxP and TxN pins of the first NFC chip 131 may also be used to send an unmodulated pure carrier signal, and after the filtering and resonant matching of the first matching circuit 132, the pure carrier signal is transmitted to the electronic device through the NFC transmitting antenna 12, and the charging circuit of the electronic device processes the received unmodulated carrier signal to implement the NFC wireless charging of the electronic device.

Referring to fig. 7, the electronic device includes a circuit component 23, and the circuit component 23 is electrically connected to the NFC receiving antenna 22. The circuit component 23 includes an NFC communication circuit and an NFC charging circuit.

The NFC communication circuit includes a second NFC chip 231 and a second matching circuit 232, the second NFC chip 231 is connected to the second matching circuit 232 through pins such as TxP, txN, rxP, rxN, and the like, and the second matching circuit 232 is connected to the NFC receiving antenna 22. The TxP pin and the TxN pin are used for sending signals, and the RxP pin and the RxN pin are used for receiving signals.

Specifically, when the NFC communication function is implemented, txP and TxN pins of the second NFC chip 231 may be used to send modulation signals, and after filtering and resonant matching by the second matching circuit 232, the modulation signals are transmitted to the charging dock through the NFC receiving antenna 22, and the charging dock analyzes and processes the received modulation signals to obtain modulation signals sent by the electronic device; the RxP and RxN of the second NFC chip 231 are used to receive the modulated signal sent by the cradle, so as to implement NFC communication between the cradle and the electronic device.

Referring to fig. 7, the NFC charging circuit includes a resonant matching circuit 233, a rectifying bridge 234, and a Battery Management unit 235 (BMU), the NFC receiving antenna 22 is connected to the resonant matching circuit 233, the resonant matching circuit 233 is connected to the rectifying bridge 234, the rectifying bridge 234 is connected to the BMU unit 235, the BMU unit 235 is connected to the Battery 24, the BMU unit 235 is further connected to the second NFC chip 231, and the second NFC chip 231 may control an operating state of the BMU unit 235, that is, control whether the BMU unit 235 charges the Battery 24.

For the charging cradle and the electronic device with the circuit structure shown in fig. 7, when NFC wireless charging is performed, the NFC communication process between the charging cradle and the electronic device includes an NFC charging protocol negotiation process and an NFC wireless charging process.

Specifically, when the NFC communication process related to the charging protocol negotiation is performed, the first NFC chip 131 in the NFC control circuit 13 sends a signal to be sent out from TxP and TxN pins and transfers the signal to the first matching circuit 132, after the signal is matched by the first matching circuit 132, the NFC transmitting antenna 12 sends the signal to the NFC receiving antenna 22 in the electronic device 20, the NFC receiving antenna 22 transfers the received signal to the second matching circuit 232, after the signal is matched by the second matching circuit 232, the signal is transferred to RxP and RxN pin of the second NFC chip 231, and then, the second NFC chip 231 performs signal analysis processing; then, the second NFC chip 231 sends out a signal to be replied from the TxP and TxN pins and transfers the signal to the second matching circuit 232, after matching by the second matching circuit 232, the NFC receiving antenna 22 sends the signal to the NFC transmitting antenna 12, the NFC transmitting antenna 12 transfers the received signal to the first matching circuit 132, after matching by the first matching circuit 132, the signal is transferred to the RxP and RxN pin of the first NFC chip 131, and then, the first NFC chip 131 performs signal analysis processing to complete one-time complete communication. The communication process can be repeated for multiple times to realize the NFC charging protocol negotiation between the charging seat and the electronic equipment.

After the charging stand and the electronic device complete the NFC charging protocol negotiation, the NFC wireless charging process starts to be executed, at this time, the first NFC chip 131 in the charging stand sends out energy from TxP and TxN pins and sends the energy to the first matching circuit 132, the first matching circuit 132 sends the matched energy to the NFC receiving antenna 22 through the NFC transmitting antenna 12, the resonant matching circuit 233 performs resonant amplification on the energy obtained from the NFC receiving antenna 22, the AC-DC conversion (AC-DC conversion into DC) through the rectifier bridge 234 is transferred to the BMU unit 235, and the BMU unit 235 controls the current magnitude for charging the battery 24, thereby implementing wireless charging of the battery 24.

It should be noted that, during the NFC charging protocol negotiation process, the second NFC chip 231 may control the BMU unit 235 through the disable signal EN not to charge the battery 24, so as to ensure that the NFC wireless communication function is normally implemented; when the NFC wireless charging process is started, the second NFC chip 231 may control the BMU unit 235 to start charging the battery 24 through the enable signal EN, so as to ensure that the NFC wireless charging function is normally implemented.

In some embodiments, the specific structure and arrangement of the electronic device and the charging dock are explained.

In some embodiments, the NFC receive antenna is disposed on a flexible circuit board, and the flexible circuit board is attached to an inner wall surface of a side wall of the housing.

Specifically, when setting up the NFC receiving antenna in the electronic equipment, can set up the NFC receiving antenna on Flexible Circuit board (FPC), the FPC board laminating setting that will be provided with the NFC receiving antenna again is at the internal face of electronic equipment's casing lateral wall to make setting up of NFC receiving antenna convenient and Flexible more, and be convenient for adjust the antenna around establishing the mode.

In some embodiments, the NFC transmitting antenna may also be disposed on the flexible circuit board, and the flexible circuit board is attached to the inner slot surface of the slot wall of the accommodating slot.

Specifically, when setting up the NFC transmitting antenna in the charging seat, can set up NFC transmitting antenna on the FPC board, the FPC board laminating that will be provided with NFC transmitting antenna again sets up the inner tank face at the cell wall of storage tank to make setting up of NFC transmitting antenna convenient more nimble, and be convenient for adjust the antenna around establishing the mode.

In some embodiments, the side wall of the electronic device housing and the wall of the charging seat receiving slot are made of non-electromagnetic shielding material, such as plastic.

Specifically, when setting up NFC transmitting antenna and NFC receiving antenna through the FPC board, because lateral wall and cell wall are located between NFC transmitting antenna and the NFC receiving antenna, consequently, lateral wall and cell wall can be formed by the preparation of non-electromagnetic shield material, lateral wall and cell wall do not include metal composition promptly, and because the part that contains metal composition in the part of containing metal composition in the electronic equipment and the charging seat is in outside the magnetic field that charges that NFC transmitting coil and NFC receiving coil formed, thereby, lateral wall and cell wall can not exert an influence to the coupling effect of NFC receiving antenna and NFC transmitting antenna, thereby guarantee the wireless charging efficiency of NFC.

In some embodiments, the side wall of the housing in the electronic device is made of a conductive material, and the NFC receiving antenna is obtained by hollowing out the side wall.

Specifically, the side wall of the housing of the electronic device can be made of conductive materials such as metal, and when the NFC receiving antenna is arranged, the side wall of the housing of the electronic device can be hollowed out to obtain the NFC receiving antenna, so that the space is saved, and the manufacturing process can be specifically realized by adopting manufacturing processes such as etching.

Optionally, the hollow gap of the NFC receiving antenna can be filled by using an injection molding process, so that the structural strength of the housing is enhanced, and the aesthetic degree of the housing can be improved.

Optionally, after the NFC receiving antenna is obtained through hollow manufacturing, a layer of non-electromagnetic shielding material, such as plastic, may be wrapped outside the NFC receiving antenna, so as to protect the NFC receiving antenna.

In some embodiments, the walls of the receiving slot in the charging base are made of a conductive material, and the NFC transmitting antenna is obtained by hollowing out the walls of the receiving slot. The specific principle of setting the NFC transmitting antenna is the same as that of setting the NFC receiving antenna in the above embodiments, and details are not repeated here.

In some embodiments, specific structures of an NFC receive antenna and a charging cradle-charged NFC transmit antenna in an electronic device are explained.

In some embodiments, the NFC receiving antenna and the NFC transmitting antenna include at least one coil, specifically, the NFC receiving antenna and the NFC transmitting antenna may only use a single-turn coil or may use multiple-turn coils, and specifically, may be selectively set according to actual requirements. Wherein, in certain coil quantity within range, the coil number of turns is more, and the efficiency that NFC charges that is wireless is higher, consequently, through setting up the coil of different turns, can carry out nimble adjustment to the NFC wireless charging efficiency of NFC receiving antenna and NFC transmitting antenna.

In some embodiments, the NFC receive antenna includes at least one surrounding segment surrounding the sidewall; the NFC transmit antenna includes at least one wrapped segment.

In some embodiments, the NFC receiving antenna includes a connecting section and two surrounding sections, the two surrounding sections are respectively disposed at two opposite ends of the sidewall, specifically, the two surrounding sections may be upper and lower opposite ends, the connecting section is connected between the two surrounding sections, and the connecting section extends along a vertical direction of the display surface of the display screen.

In some embodiments, the NFC transmitting antenna includes a connection section and two surrounding sections, the two surrounding sections are respectively disposed at two opposite ends of the slot wall, specifically, the two surrounding sections may be upper and lower opposite ends, the connection section is connected between the two surrounding sections, and the connection section extends along the slot depth direction of the accommodating slot.

Specifically, the NFC receiving antenna is taken as an example for explanation, in the NFC receiving antenna, the coil unit may also include two surrounding sections and a connecting section for connecting the two surrounding sections, where the two surrounding sections may be an upper end surface and a lower end surface that are respectively disposed on a side wall of the housing in the electronic device, and the connecting section extends along a vertical direction of the display surface of the display screen, that is, along a direction perpendicular to the upper end surface and the lower end surface, so as to connect the two surrounding sections.

It is understood that the surrounding segment may be disposed completely around the sidewall or partially around the sidewall, and is not limited herein. The NFC transmitting antenna is similar to the NFC receiving antenna and is not described herein again.

In some embodiments, two antenna end points of the NFC receiving antenna are respectively connected to one end part of each of the two surrounding segments; the connecting section is one, and the connecting section is connected to the other end parts of the two surrounding sections, and the other end parts of the two surrounding sections are not connected with the antenna end points, so that the two surrounding sections and the connecting section jointly form a passage between the two antenna end points.

In some embodiments, two antenna terminals of the NFC receiving antenna are connected to two ends of the same one of the two surrounding segments; the other of the two surrounding sections is connected with the surrounding section connected with the antenna end point through the connecting section, so that the two surrounding sections and the connecting section jointly form a passage between the two antenna end points.

In some embodiments, two antenna end points of the NFC transmitting antenna are respectively connected to one end of each of the two surrounding segments; the connecting section is one, and the connecting section is connected to the other end parts of the two surrounding sections, and the other end parts of the two surrounding sections are not connected with the antenna end points, so that the two surrounding sections and the connecting section jointly form a passage between the two antenna end points.

In some embodiments, two antenna end points of the NFC transmitting antenna are connected to two end portions of the same one of the two surrounding segments; the other of the two surrounding sections is connected with the surrounding section connected with the antenna end point through the connecting section, so that the two surrounding sections and the connecting section jointly form a passage between the two antenna end points.

Specifically, referring to fig. 6d, the NFC receiving antenna is also taken as an example to be explained, and the NFC receiving antenna includes a first surrounding segment abc located at the upper end face position, a second surrounding segment def located at the lower end face position, and a connecting segment cf.

One end (namely, the end a) of the first surrounding segment abc is connected with an antenna port Ant3 of the NFC antenna, one end (namely, the end d) of the second surrounding segment def is connected with an antenna port Ant4 of the NFC antenna, and the connecting segment cf is respectively connected with the other end (namely, the end c) of the first surrounding segment abc and the other end (namely, the end f) of the second surrounding segment def, so that a signal current can be input from the antenna port Ant3, circulate according to a path of a-b-c-f-e-d, and finally be output from the antenna port Ant4.

It is understood that the NFC transmitting antenna 12 may be wound in the same manner, and will not be described herein.

Fig. 8a is another schematic diagram of a positional relationship between an electronic device and a charging seat during wireless charging in the embodiment of the present application, fig. 8b is a schematic diagram of a structure of the charging seat in fig. 8a, fig. 8c is a schematic diagram of a structure of the electronic device in fig. 8a, and fig. 8d is a schematic diagram of antenna magnetic field coupling between the electronic device and the charging seat shown in fig. 8a to 8c in the embodiment of the present application, as shown in fig. 8a to 8d, the NFC receiving antenna 22 and the NFC transmitting antenna 12 may be arranged in a spiral structure.

Specifically, referring to fig. 8c, taking the NFC antenna 22 as an example for explanation, the starting point of the coil unit of the NFC antenna 22 may be disposed at a position close to the lower end surface of the side wall of the housing, for example, the position of the antenna end point Ant4 in fig. 8c, then the first winding section abcd of the coil unit is wound up spirally in sequence along a-b-c-d with reference to the winding direction (for example, the counterclockwise direction) of the side wall of the housing, and is wound up to the position close to the upper end surface of the side wall of the housing, and then the second winding section efgh wound downward in spiral is connected by a connecting section de along the extending direction of the side wall, where the second winding section is wound down in sequence along e-f-g-h in the opposite direction (i.e., the clockwise direction, from top to bottom) to the first winding section, and the end point of winding is the position of the other antenna end point Ant 3.

Above-mentioned spiral NFC antenna coiling mode can be applied to the product of long cylinder structure, for example initiative pen and the charging seat that corresponds etc to help increasing the inductance value of NFC antenna, improve the charge efficiency of NFC antenna to a certain extent.

Fig. 9a is another schematic diagram of a positional relationship between an electronic device and a charging stand during wireless charging in the embodiment of the present application, fig. 9b is a schematic diagram of a structure of the charging stand in fig. 9a, fig. 9c is a schematic diagram of a structure of the electronic device in fig. 9a, and fig. 9d is a schematic diagram of magnetic field coupling between the electronic device and an antenna of the charging stand shown in fig. 9a to 9c in the embodiment of the present application, as shown in fig. 9a to 9d, the NFC receiving antenna is also used as an example for explanation, and the NFC receiving antenna 22 in the electronic device 20 may include a plurality of surrounding segments and a plurality of connecting segments.

Specifically, referring to fig. 9d, for the sake of convenience of distinction, the NFC transmitting antenna 12 is shown by a solid line, the NFC receiving antenna 22 is shown by a dotted line, and the NFC receiving antenna 22 in the electronic device 20 includes a first surrounding section def located at the upper end position, a second surrounding section abc and a third surrounding section ghi located at the lower end position, a first connecting section cd, and a second connecting section fg.

One end (i.e., end a) of the second surrounding segment abc is connected to the antenna port Ant3 of the NFC receiving antenna, the other end (i.e., end c) of the second surrounding segment abc is connected to the first connecting segment cd, the first connecting segment cd is further connected to one end (i.e., end d) of the first surrounding segment def, the other end (i.e., end f) of the first surrounding segment def is connected to the second connecting segment fg, the second connecting segment fg is connected to one end (i.e., end g) of the third surrounding segment ghi, and the other end (i) of the third surrounding segment ghi is connected to the antenna port Ant4 of the NFC antenna, so that a signal current can be input from the antenna port Ant3 and flow through the path of a-b-c-d-e-f-g-h-i, and finally output from the antenna port Ant4.

Compared with the NFC antenna arrangement mode shown in fig. 6a to 6d, the connection between the antenna structure in this embodiment and the circuit board provided with the circuit component in the electronic device is easier to implement, so that the electronic device is convenient to produce and assemble.

In some embodiments, the NFC antenna may include a multi-turn coil, and the multi-turn coil may help to increase inductance of the NFC antenna, on one hand, may reduce difficulty in designing a matching circuit in the electronic device, and on the other hand, may also help to improve energy transmission efficiency of the antenna.

Fig. 10a is another schematic diagram of a positional relationship between an electronic device and a charging seat during wireless charging in the embodiment of the present application, fig. 10b is a schematic diagram of a structure of the charging seat in fig. 10a, fig. 10c is a schematic diagram of a structure of the electronic device in fig. 10a, and fig. 10d is a schematic diagram of magnetic field coupling between the electronic device and an antenna of the charging seat in fig. 10a to 10c in the embodiment of the present application, as shown in fig. 10a to 10d, which is also explained by taking an NFC receiving antenna as an example, the NFC receiving antenna 22 in the electronic device 20 may also include a multi-turn coil.

Specifically, referring to fig. 10d, for convenience of distinction, the NFC transmitting antenna 12 is shown by a solid line, the NFC receiving antenna 22 is shown by a dotted line, and the NFC receiving antenna 22 in the electronic device 20 is sequentially connected to a first surrounding segment abc, a first connection segment cd, a second surrounding segment dfe, a second connection segment fg, a third surrounding segment ghi, a third connection segment ij, and a fourth surrounding segment jkl, where an a end of the first surrounding segment abc is connected to an antenna port Ant3 of the NFC receiving antenna, and an l end of the fourth surrounding segment jkl is connected to an antenna port Ant4 of the NFC receiving antenna, so that a signal current may be input from the antenna port Ant3, and flow through a path of a-b-c-d-e-f-g-h-i-j-k-l, and finally output from the antenna port Ant4.

In addition, compared with the NFC antenna arrangement modes shown in fig. 6a to 6d, the antenna structure in this embodiment includes a multi-turn coil, specifically, a first surrounding section abc, a second surrounding section dfe, a third surrounding section ghi, and a fourth surrounding section jkl, so that, compared with a single-turn coil design mode, the inductance of the NFC antenna can be increased in this embodiment, thereby reducing the design difficulty of a matching circuit in an electronic device, and improving the energy transmission efficiency of the antenna.

It should be noted that, in the present application, the surrounding shape of the coil unit in the NFC antenna matches the shape of the side wall of the housing of the electronic device, that is, when the side wall of the housing of the electronic device is cylindrical, the coil unit in the NFC antenna is designed to surround in a circular structure, for example, the antenna structures shown in fig. 6a to 6d, fig. 8a to 8d, fig. 9a to 9d, and fig. 10a to 10d in the present application. When the object side wall of the electronic device is in other shapes, the coil unit in the NFC antenna is designed to surround in a structure of a corresponding shape, and the other shapes specifically include a rectangular parallelepiped shape, a trapezoidal cylinder, a rhombic cylinder, a heart-shaped cylinder, and the like.

Fig. 11a is another schematic diagram illustrating a positional relationship between an electronic device and a charging stand during wireless charging in the embodiment of the present application, fig. 11b is a schematic diagram illustrating a structure of the charging stand in fig. 11a, fig. 11c is a schematic diagram illustrating a structure of the electronic device in fig. 11a, and fig. 11d is a schematic diagram illustrating magnetic coupling between the electronic device and an antenna of the charging stand shown in fig. 11a to 11c in the embodiment of the present application, as shown in fig. 11a to 11d, when a housing of the electronic device 20 is rectangular, the NFC receiving antenna 22 in the electronic device 20 is designed to be surrounded by a rectangular shape.

In some embodiments, two antenna terminals in the NFC receiving antenna are connected to the circuit component by conductive fasteners or conductive clips.

In some embodiments, two antenna terminals in the NFC transmitting antenna are connected with the NFC control circuit through a conductive fastener or a conductive spring.

Specifically, the NFC receiving antenna is taken as an example for explanation, and the NFC receiving antenna and the circuit component may be connected in various ways, for example, two antenna ports of the NFC receiving antenna and a mounting hole in the electronic device may be manufactured as an integral structure, and then the mounting hole is connected to a circuit board on which the circuit component is mounted by a conductive fastener (e.g., a screw), so as to achieve electrical connection between the NFC receiving antenna and the circuit component.

In addition, a conductive elastic sheet can be arranged on the inner wall surface of the side wall of the shell of the electronic equipment, two antenna ports of the NFC receiving antenna are connected with the conductive elastic sheet, and the conductive elastic sheet is in contact connection with metal contacts on the circuit board in a pressing mode and the like, so that the NFC receiving antenna is electrically connected with the circuit component.

It is understood that the NFC transmitting antenna can be connected to the circuit component in the same manner, and will not be described herein.

Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An electronic device, comprising:

a display screen;

the circuit component is electrically connected with the display screen;

the battery is electrically connected with the display screen and the circuit assembly respectively;

the NFC receiving antenna is connected with the circuit component and is used for being coupled with an NFC transmitting antenna of a charging seat and receiving energy from the NFC transmitting antenna;

2. The electronic device of claim 1, wherein the side wall further includes an upper end surface and a lower end surface connecting the inner wall surface and the outer wall surface, the housing further includes an upper cover and a lower cover, the upper cover and the lower cover are respectively connected with the upper end surface and the lower end surface of the side wall and jointly enclose an accommodating cavity, and the display screen, the circuit assembly and the battery are located in the accommodating cavity so that the display screen, the circuit assembly and the battery are located outside the charging magnetic field.

3. The electronic device of claim 2, further comprising a first ferrite layer located on one side of the NFC receiving antenna near the center of the receiving cavity, wherein the first ferrite layer surrounds the circuit component and the battery.

4. The electronic device of claim 2, wherein the circuit component comprises an NFC charging circuit, wherein the NFC receiving antenna comprises two antenna terminals, and wherein the NFC charging circuit is electrically connected to the two antenna terminals respectively.

5. The electronic device of claim 4, wherein the circuit assembly further comprises NFC communication circuits electrically connected to the two antenna endpoints, respectively;

6. The electronic device of claim 1, wherein a maximum distance between an outer wall surface of the sidewall and the NFC receiving antenna is less than an effective electromagnetic coupling distance between the NFC receiving antenna and the NFC transmitting antenna.

7. The electronic device of any of claims 1-6, wherein the NFC receive antenna comprises at least one turn of coil.

8. The electronic device defined in any one of claims 1-6, wherein the NFC receive antenna comprises at least one wrapped segment that wraps around the sidewall.

9. The electronic device according to claim 8, wherein the NFC receiving antenna includes a connecting section and two surrounding sections, the two surrounding sections are respectively disposed at two opposite upper and lower ends of the side wall, the connecting section is connected between the two surrounding sections, and the connecting section extends along a vertical direction of a display surface of the display screen.

10. The electronic device according to claim 9, wherein two antenna end points of the NFC receiving antenna are respectively connected to one end portion of each of the two surrounding segments;

11. The electronic device according to claim 9, wherein two antenna end points of the NFC receiving antenna are connected to two end portions of the same one of the two surrounding segments;

12. The electronic device according to any one of claims 1 to 6, wherein the NFC receiving antenna is disposed on a flexible circuit board, and the flexible circuit board is attached to an inner wall surface of the side wall;

the side walls are made of a non-electromagnetic shielding material.

13. The electronic device according to any one of claims 1-6, wherein the side wall is made of a conductive material, and the NFC receiving antenna is formed by hollowing out the side wall.

14. The electronic device according to claim 4 or 5, wherein two antenna terminals of the NFC receiving antenna are connected with the circuit component through a conductive fastener or a conductive spring.

15. A charging stand, comprising:

a base;

an NFC control circuit;

16. The charging dock of claim 15, wherein the walls of the receiving slot extend in the depth direction of the receiving slot.

17. The charging dock of claim 15, wherein the shape of the receiving slot matches the shape of the electronic device.

18. The charging cradle of claim 15, further comprising a second ferrite layer disposed on the slot wall of the receiving slot and located on a side of the NFC transmitting antenna adjacent to the outer slot surface of the slot wall;

19. The charging cradle of any of claims 15-18, wherein the NFC transmit antenna comprises at least one turn of a coil.

20. The cradle of claim 19, wherein the NFC transmit antenna comprises at least one wraparound segment.

21. The charging dock of claim 20, wherein the NFC transmitting antenna comprises a connecting section and two surrounding sections, the two surrounding sections are respectively disposed at two opposite ends of the slot wall, the connecting section is connected between the two surrounding sections, and the connecting section extends along a depth direction of the receiving slot.

22. The cradle of claim 21, wherein two antenna terminals of the NFC transmitting antenna are respectively connected to one end of each of the two surrounding segments;

23. The cradle of claim 21, wherein two antenna terminals of the NFC transmitting antenna are connected to two ends of a same one of the two surrounding segments;

24. The charging dock of any one of claims 15 to 18, wherein the NFC transmitting antenna is disposed on a flexible circuit board, and the flexible circuit board is attached to an inner slot surface of the slot wall;

the tank walls are made of a non-electromagnetic shielding material.

25. The charging dock of any one of claims 15 to 18, wherein the slot walls are made of an electrically conductive material, and the NFC transmitting antenna is formed by hollowing out the slot walls.

26. The charging dock of any of claims 15-18, wherein two antenna terminals of the NFC transmit antenna are connected to the NFC control circuit by a conductive fastener or a conductive clip.

27. A shell is applied to electronic equipment, and the electronic equipment further comprises a display screen, a circuit component, a battery and an NFC receiving antenna, wherein the NFC receiving antenna is connected with the circuit component and is used for being coupled with an NFC transmitting antenna of a charging seat and receiving energy from the NFC transmitting antenna;

characterized in that the housing comprises: a sidewall having a height and a thickness;

28. The housing of claim 27, wherein the sidewall further comprises an upper end surface and a lower end surface connecting the inner wall surface and the outer wall surface, the housing further comprises an upper cover and a lower cover, the upper cover and the lower cover are respectively connected with the upper end surface and the lower end surface of the sidewall and jointly enclose an accommodating cavity, and the display screen, the circuit assembly and the battery are located in the accommodating cavity so that the display screen, the circuit assembly and the battery are located outside the charging magnetic field.

29. The housing of claim 27 or 28, wherein the NFC receiving antenna is disposed on a flexible circuit board attached to an inner wall surface of the side wall;

the side walls are made of a non-electromagnetic shielding material.

30. The housing according to any one of claims 27 or 28, wherein the side wall is made of a conductive material, and the NFC receiver antenna is obtained by hollowing out the side wall.

31. A storage tank is applied to a charging seat, and the charging seat further comprises a base, an NFC control circuit and an NFC transmitting antenna, wherein the NFC transmitting antenna is connected with the NFC control circuit and is used for being coupled with an NFC receiving antenna in electronic equipment and sending energy to the NFC receiving antenna under the control of the NFC control circuit;

the device is characterized in that the accommodating groove is arranged on the base;

32. The receiving groove of claim 31, wherein the walls of the receiving groove extend in the depth direction of the groove.

33. The receiving slot according to claim 31, wherein a shape of the receiving slot matches a shape of the electronic device.

34. The accommodating slot according to any one of claims 31 to 33, wherein the NFC transmitting antenna is disposed on a flexible circuit board, and the flexible circuit board is attached to an inner slot surface of the slot wall;

the slot walls are made of a non-electromagnetic shielding material.

35. The receiving slot according to any one of claims 31 to 33, wherein the slot walls are made of an electrically conductive material, and the NFC transmitting antenna is obtained by hollowing out the slot walls.