CN111458877A

CN111458877A - Head-mounted equipment, equipment box and wireless charging system

Info

Publication number: CN111458877A
Application number: CN202010279944.2A
Authority: CN
Inventors: 杜鹏
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-07-28

Abstract

The present disclosure provides a head-mounted device, a device box and a wireless charging system. A head-mounted device comprising: a battery; a head display unit comprising: two mirror frames; the wireless receiving circuits are connected with the battery in parallel respectively and used for receiving electromagnetic signals transmitted by a wireless charging device and converting the electromagnetic signals into direct current to charge the battery; wherein, each wireless receiving circuit comprises a receiving coil; the receiving coils of two wireless receiving circuits of the at least two wireless receiving circuits are respectively arranged in the two mirror frames.

Description

Head-mounted equipment, equipment box and wireless charging system

Technical Field

The utility model relates to a wearable equipment technical field especially relates to a head mounted equipment, equipment box and wireless charging system.

Background

The head-mounted device can achieve different effects such as Virtual Reality (VR), Augmented Reality (AR), Mixed Reality (MR) and the like by transmitting an optical signal to the eyes of the wearer, such as VR glasses, AR glasses, MR glasses and the like.

The existing head-mounted equipment can be roughly divided into a split type and an integrated type in form. The split type device includes a head-mounted display portion (hereinafter referred to as a head display portion) and also includes a host portion. The head display part only comprises necessary functional modules such as a display module, a camera module, an environment sensor module and the like, and modules such as a processor, a battery and the like are arranged on the host part. Although the split type equipment reduces the volume and the weight of the head display part to a great extent and improves the use comfort, the head display part and the host machine part need to be connected through a lead, so that the split type equipment is inconvenient to carry and use.

The integrated device integrates all the functional modules together, including a processor, a battery and the like, and improves the use convenience.

However, the size and weight of the integrated device are limited, and if the integrated device is charged by wire, the USB connector is disposed on the integrated device, which undoubtedly increases the size and weight of the integrated device, and is not conducive to miniaturization and beauty of the integrated device.

And the wireless charging scheme in the related art has a slow charging speed and poor user experience. For example, in a scheme of performing wireless charging by using an NFC (Near-Field Communication) coil, although the NFC coil is small in size and is suitable for being applied to a miniaturized integrated device, the charging power is also small, and the charging current is mostly within 150 mA. For a battery with a battery capacity of several hundred milliampere hours, the charging speed is very slow.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

An object of the present disclosure is to provide a head-mounted device, a device cartridge, and a wireless charging system.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows, or in part will be obvious from the description, or may be learned by practice of the disclosure.

According to an aspect of the present disclosure, there is provided a head mounted device including: a battery; a head display unit comprising: two mirror frames; the wireless receiving circuits are connected with the battery in parallel respectively and used for receiving electromagnetic signals transmitted by a wireless charging device and converting the electromagnetic signals into direct current to charge the battery; wherein the at least two wireless receiving circuits respectively include: a receiving coil; the receiving coils of two of the at least two wireless receiving circuits are respectively disposed in the two lens frames.

According to an embodiment of the present invention, the at least two parallel wireless receiving circuits comprise: a first wireless receiving circuit and a second wireless receiving circuit; the first wireless receiving circuit includes: a first receiving coil; the second wireless receiving circuit includes: a second receiving coil; the first receiving coil and the second receiving coil are respectively disposed in the two lens frames.

According to an embodiment of the present invention, the method further comprises: two foldable connection units respectively connected to both ends of the head display unit.

According to an embodiment of the present invention, the at least two parallel wireless receiving circuits comprise: a first wireless receiving circuit, a second wireless receiving circuit and at least one third wireless receiving circuit; the first wireless receiving circuit includes: a first receiving coil; the second wireless receiving circuit includes: a second receiving coil; the at least one third wireless receiving circuit comprises: at least one third receiving coil; the first receiving coil and the second receiving coil are respectively disposed in the two lens frames, and the at least one third receiving coil is disposed in at least one of the two foldable connecting units.

According to an embodiment of the invention, the battery is arranged in one of the two foldable connection units.

According to an embodiment of the present invention, the battery is provided in the head display unit.

According to an embodiment of the present invention, the head display unit further includes a connection bracket connected between the two mirror frames, the battery being disposed in the connection bracket.

According to an embodiment of the invention, the inner sides of the two rims are provided with a heat conducting material.

According to another aspect of the present invention, there is provided an apparatus box including: a case for accommodating a head-mounted device; the charging interface is arranged on the box body and used for receiving electric energy input by the power supply device; a battery; the wireless transmitting circuits are respectively arranged in the box body, are respectively connected with the charging interface, and are used for converting electric energy provided by the charging interface or electric energy provided by the battery into electromagnetic signals to be transmitted so as to charge the head-mounted device; the two wireless transmission circuits respectively include: a transmitting coil; the transmitting coils are respectively arranged at the positions matched with the receiving coils of the head-mounted equipment accommodated in the transmitting coils.

According to an embodiment of the present invention, the at least two wireless transmission circuits comprise: a first wireless transmission circuit and a second wireless transmission circuit; the first wireless transmission circuit includes: a first transmitting coil; the second wireless transmission circuit includes: a second transmitting coil.

According to an embodiment of the invention, the device cartridge further comprises: and the control module is respectively connected with the battery and the charging interface and used for controlling the electric energy provided by the battery or the power supply device to be input to the at least two wireless transmitting circuits.

According to an embodiment of the present invention, the control module is configured to detect whether the power supply device is connected to the device box through the charging interface when the head-mounted device is accommodated in the device box; when the power supply device is detected to be connected with the equipment box through the charging interface, the electric energy provided by the power supply device is input to the at least two wireless transmitting circuits; and when the power supply device is not detected to be connected with the equipment box through the charging interface, the electric energy provided by the battery is input to the at least two wireless transmitting circuits.

According to still another aspect of the present invention, there is provided a wireless charging system including: any one of the head-mounted equipment and any one of the equipment boxes; wherein the equipment box is used for accommodating the head-mounted equipment and wirelessly charging the head-mounted equipment.

According to the head-mounted device provided by the embodiment of the disclosure, the plurality of wireless receiving circuits are arranged, so that the head-mounted device can receive electric energy through the plurality of wireless charging channels to charge the battery when the head-mounted device is wirelessly charged, the wireless charging power can be greatly improved, and the charging speed of the battery is increased. In addition, the charging coils of two wireless receiving circuits in the plurality of wireless receiving circuits are respectively arranged in the two mirror frames, so that the area of the receiving coils can be enlarged, and the charging rate is improved; on the other hand, the volume of the frame can be sufficiently reused, so that no extra volume is required to be occupied in the head-mounted equipment.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

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. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

Fig. 1 is a schematic diagram illustrating a wireless charging system according to an exemplary embodiment.

Fig. 2A is a schematic diagram illustrating a configuration of a head-mounted device according to an exemplary embodiment.

Fig. 2B is a schematic diagram illustrating another head-mounted device according to an example embodiment.

Fig. 3A is a schematic diagram illustrating a head-mounted device according to an example embodiment.

Fig. 3B is a schematic diagram illustrating another head mounted device according to an example embodiment.

Fig. 4 is a schematic diagram illustrating yet another head mounted device according to an example embodiment.

Fig. 5 is a schematic diagram illustrating yet another head mounted device according to an example embodiment.

Fig. 6A is a schematic diagram illustrating a configuration of a device cartridge according to an exemplary embodiment.

Fig. 6B is a schematic diagram illustrating another device cartridge according to an example embodiment.

FIG. 7 is a schematic diagram illustrating a device cartridge according to an exemplary embodiment.

Fig. 8A is a schematic diagram illustrating charging of a battery 202 according to an example.

Fig. 8B is a schematic diagram illustrating charging of a head-mounted device by a battery 202 according to an example.

Fig. 8C is a schematic diagram illustrating charging of the battery 202 and charging of the head-mounted device simultaneously, according to an example.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

In addition, in the present disclosure, unless otherwise expressly specified or limited, the terms "connected" and "connected" are to be construed broadly, e.g., as meaning directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate. In the description of the present disclosure, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Before describing embodiments of the present disclosure in detail, a wireless charging technique is described.

In the wireless charging process, generally, the output power of a power supply device (e.g., a power adapter) or a battery in the wireless charging device is wirelessly (e.g., electromagnetic signals or electromagnetic waves) transmitted to a device to be charged (e.g., a head-mounted device in the embodiment of the present disclosure) by a wireless charging device (e.g., a wireless charging cradle or an equipment box in the embodiment of the present disclosure), so as to wirelessly charge the device to be charged.

According to different wireless charging principles, wireless charging methods are mainly classified into three methods, namely magnetic coupling (or electromagnetic induction), magnetic resonance and radio wave. Currently, the mainstream Wireless charging standards include QI standard, Power association (PMA) standard, and Wireless Power association (A4 WP) standard. The QI standard and the PMA standard both adopt a magnetic coupling mode for wireless charging. The A4WP standard uses magnetic resonance for wireless charging.

Hereinafter, aspects of example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings.

As shown in fig. 1, the wireless charging system 1 includes: a wireless charging device 12 and a device to be charged 13.

The wireless charging device 12 may be, for example, a wireless charging cradle.

The device to be charged 13 may be, for example, a head-mounted device provided in the embodiments of the present disclosure described below.

The wireless charging device 12 includes: wireless transmitting circuit 121, control module 122 and charging interface 123.

The wireless transmitting circuit 121 is configured to convert electrical energy into an electromagnetic signal (or an electromagnetic wave) for transmission, so as to wirelessly charge the device to be charged 13.

The electric energy is provided for the wireless charging device 12 after the power supply device 11 (such as a power adapter, a mobile power supply, etc.) is connected with the wireless charging device 12 through the charging interface 123.

The wireless transmission circuit 121 may include: a wireless transmission drive circuit and a transmission coil (or transmission antenna). The wireless transmission driving circuit is used for converting the direct current output by the power supply device 11 into high-frequency alternating current, and converting the high-frequency alternating current into an electromagnetic signal (or electromagnetic wave) through a transmitting coil or a transmitting antenna to be transmitted.

The Control module 122 may be implemented by a Micro Control Unit (MCU), for example. The control module 122 may be configured to wirelessly communicate with the device to be charged 13 during the process of wirelessly charging the device to be charged 13 by the wireless charging apparatus 12. Specifically, the control module 122 may wirelessly communicate with the control module 134 in the device to be charged 13.

The charging interface 123 may be, for example, a USB interface satisfying USB 2.0 specification, USB3.0 specification, and USB3.1 specification, and includes: micro USB interface or USB TYPE-C interface. In some embodiments, the charging interface 123 may also be a lightning interface, or any other type of parallel or serial interface capable of being used for charging.

The wireless charging device 12 can communicate with the power supply device 11, for example, via the charging interface 123, without providing an additional communication interface or other wireless communication module, which can simplify the implementation of the wireless charging device 12. If the charging interface 123 is a USB interface, the wireless charging device 12 (or the wireless transmitting circuit 121) and the power supply device 11 can communicate based on a data line (e.g., a D + line and/or a D-line) in the USB interface. As another example, the charging interface 123 is a USB interface (e.g., a USB TYPE-C interface) supporting a Power Delivery (PD) communication protocol, and the wireless charging device 12 (or the wireless transmitting circuit 121) and the Power supply device 11 can communicate based on the PD communication protocol.

Further, the wireless charging device 12 may be communicatively connected to the power supply device 11 by another communication method other than the charging interface 123. For example, the wireless charging device 12 may communicate with the power supply device 11 in a wireless manner, such as NFC communication.

The device to be charged 13 includes: a wireless receiving circuit 132, a control module 134, a voltage conversion module 136 and a battery 138.

The wireless receiving circuit 132 in the device to be charged 13 is configured to receive the electromagnetic signal (or electromagnetic wave) transmitted by the wireless transmitting circuit 121 and convert the electromagnetic signal (or electromagnetic wave) into the direct current output by the wireless receiving circuit 132. For example, the wireless receiving circuit 132 may include: a receiving coil or a receiving antenna, and a shaping circuit such as a rectifying circuit and/or a filter circuit connected to the receiving coil or the receiving antenna. The wireless receiving circuit 132 converts the electromagnetic signal (or electromagnetic wave) transmitted by the wireless transmitting circuit 121 into an alternating current by a receiving coil or a receiving antenna, and rectifies and/or filters the alternating current by a shaping circuit, thereby converting the alternating current into a stable direct current to charge the battery 138.

It should be noted that the embodiment of the present invention does not specifically limit the specific form of the shaping circuit and the form of the output voltage and the output current of the wireless receiving circuit 132 obtained after shaping by the shaping circuit.

When the output voltage of the wireless receiving circuit 132 cannot meet the requirement of the charging voltage expected by the battery 138 and/or the output current of the wireless receiving circuit 132 cannot meet the requirement of the charging current expected by the battery 138, the output voltage may be converted by the voltage converting module 136 to obtain the charging voltage and/or the charging current expected by the battery 138. The voltage and current output by the voltage conversion module 136 are applied to both ends of the battery 138 to meet the expected charging voltage and/or charging current requirements of the battery 138.

Battery 138 may include a single cell or multiple cells. When battery 138 includes multiple cells, the multiple cells may be in a series relationship. Therefore, the charging voltage which can be borne by the battery 138 is the sum of the charging voltages which can be borne by a plurality of battery cores, the charging speed can be increased, and the charging heat emission can be reduced.

The control module 134 may be implemented by, for example, a separate MCU, or may also be implemented by an Application Processor (AP) inside the device to be charged 13. The control module 134 is used to communicate with the control module 122 in the wireless charging device 12.

The control module 134 communicates with the wireless charging device 12 in a wireless manner, and the disclosure does not limit the communication manner and the communication sequence between the wireless charging device 12 and the device to be charged 13 (the control module 134). For example, the radio communication may be unidirectional radio communication or bidirectional radio communication. May be a communication initiated by the device to be charged 13 or may be a communication initiated by the wireless charging apparatus 12. In the wireless communication process, the device to be charged 13 may couple the information to be transmitted to the receiving coil of the wireless receiving circuit 132, so as to transmit the information to the transmitting coil of the wireless transmitting circuit 121, and then the wireless transmitting circuit 121 transmits the decoupled information to the control module 122. Conversely, in the two-way communication, the wireless charging apparatus 12 may couple the information to be transmitted to the transmitting coil of the wireless transmitting circuit 121, to be transmitted to the receiving coil of the wireless receiving circuit 132 of the device to be charged 13, and to be decoupled by the receiving coil of the wireless receiving circuit 132 of the device to be charged 13.

Alternatively, the device to be charged 13 may also communicate with the wireless charging apparatus 12 through at least one of bluetooth, WiFi, mobile cellular network communication (e.g., 2G, 3G, 4G, or 5G), wireless communication (e.g., ieee 802.11, 802.15(WPANs), 802.16(WiMAX), 802.20, etc.), short-range wireless communication based on a high-frequency antenna (e.g., 60GHz), optical communication (e.g., infrared communication), ultrasonic communication, ultra-wideband (UMB) communication, and other communication methods. It can be understood that, when the communication is performed by the above-mentioned communication method, the device to be charged 13 and the wireless charging device 12 further include corresponding communication modules, such as a bluetooth communication module, a WiFi communication module, a 2G/3G/4G/5G mobile communication module, a high-frequency antenna, and an optical communication module. At least one of an ultrasonic communication module, an ultra-wideband communication module, and the like. It should be understood that the standards that may be employed for wireless communication as described above include past and existing standards, as well as future versions and standards that employ such standards without departing from the scope of this disclosure. By performing communication by the above-described wireless communication method, the reliability of communication can be improved, thereby improving charging safety. Compared with the method of coupling the feedback information to the receiving coil of the wireless receiving circuit 132 for communication through signal modulation in the related art (for example, the Qi standard), the reliability of communication can be improved, and voltage ripples caused by signal coupling communication can be avoided from affecting the voltage processing process of the voltage conversion module 136 of the device to be charged 13. In addition, for the voltage ripple when the wireless receiving coil outputs, if the ripple is not effectively processed, the wireless charging safety problem may be caused, and certain potential safety hazard exists. By the above wireless communication method, the voltage ripple can be eliminated, so that a circuit for processing the voltage ripple can be omitted, the complexity of the charging circuit of the device to be charged 13 is reduced, the charging efficiency is improved, the circuit setting space is saved, and the cost is reduced.

The head-mounted device provided by the embodiment of the present disclosure may be VR glasses, AR glasses, MR glasses, or other smart glasses wearable on the head, for example.

Referring to fig. 2A, the head mounted device 10 includes: a battery 101, a wireless receiving circuit 103A, and a wireless receiving circuit 103B.

The battery 101 is used to power the circuits to be powered in the head-mounted device 10. The circuitry to be powered may include, for example, a processor module, a data acquisition module (e.g., a camera, a sensor, a microphone, an audio encoder, etc.), a display module, etc. in the head-mounted device 10.

As shown in fig. 3A, the head mounted device 10A further includes: the connection unit 104, both ends of the connection unit 104, and the head display unit 102 form a circle or an ellipse, and can be integrally worn on the head of the user.

As shown in fig. 3B, the head mounted device 10B is in the shape of glasses, and includes a head display unit 102 and two

foldable connection units

104A and 104B. The

connection units

104A and 104B are two temples of the glasses-shaped head mounted device 10.

It should be noted that the present disclosure does not limit the shape and/or style of the head mounted device 10, and fig. 3A and 3B are only examples and do not limit the present disclosure.

The head display unit 102 may include two

frame members

1021A and 1021B, as shown in fig. 3A or 3B, for example.

Note that in the present disclosure, the frame means a frame showing the periphery of the lens as shown in fig. 3A or 3B, not the entire frame.

With continued reference to fig. 2A, the battery 101 may be charged by providing the wireless receiving circuit 103A and the wireless receiving circuit 103B such that the head-mounted device 10 may receive power through the two wireless charging channels when wirelessly charging. The wireless charging power can be greatly increased (because the charging power can be almost doubled when two wireless charging channels are used), thereby accelerating the charging speed of the battery 101.

It should be noted that although fig. 2A illustrates two wireless receiving circuits 103A and 103B, more wireless receiving circuits, for example, three or four wireless receiving circuits may be provided. If three wireless channels are used for charging, the charging power can be almost three times that of a single channel, and so on. So that the charging speed of the battery 101 can be further increased.

Referring to fig. 2A, a wireless receiving circuit 103A and a wireless receiving circuit 103B are respectively connected to the battery 101, and are configured to receive an electromagnetic signal transmitted by the wireless charging device and convert the electromagnetic signal into direct current to wirelessly charge the battery 101.

The wireless charging device may be, for example, the wireless charging device 12 shown in fig. 1 (e.g., a wireless charging cradle), or may be a rechargeable equipment case (e.g., a glasses case). That is, for example, the head-mounted device 10 may be placed on a wireless charging cradle for wireless charging, or the head-mounted device 10 may be placed in a device box for wireless charging.

Each of the wireless receiving circuits includes a receiving coil, and the receiving coils of any two of the wireless receiving circuits may be provided in the

frames

1021A and 1021B shown in fig. 3A or 3B, respectively. The

frames

1021A and 1021B may be hollow, for example, and may be used to house a receiver coil.

The head-mounted device 10C shown in fig. 4 is a glasses-shaped head-mounted device as an example, but the disclosure is not limited thereto.

An example is that the receiving

coils

1031A and 1031B in the wireless receiving circuits 103A and 103B are provided in the lens frames 1021A and 1021B as shown in fig. 4.

By arranging the receiving coil in the mirror frame, on one hand, the area of the receiving coil can be enlarged, and the charging rate is improved; on the other hand, the volume of the frame can be sufficiently reused, so that no extra volume is required to be occupied in the head-mounted equipment.

To further increase the charging speed, as shown in fig. 2B, the head-mounted device 10 may further include, for example: at least one wireless receiving circuit 103C. For simplifying the drawing, fig. 2B illustrates a wireless receiving circuit 103C, but the disclosure is not limited thereto.

The wireless receiving circuit 103C includes a receiving coil 1031C, and may be provided in one of the

connection units

104A and 104B (the connection unit 104A is exemplified in fig. 4) as shown in fig. 4. As shown in fig. 4, for example, one end of the connection unit 104A near the head display unit 102 may be designed to be a wide structure, so that the receiving coil 1031C may be provided to the end of the connection unit 104A.

When a plurality of wireless receiving circuits 103C are included, the plurality of wireless receiving circuits 103C may be provided in the connection unit 104A and the connection unit 104B, respectively, or may be provided in both the connection unit 104A and the connection unit 104B, and the disclosure is not limited thereto.

As mentioned above, a wireless charging channel is further added, so that the charging power can be further improved, and the charging speed is accelerated.

In some embodiments, still taking the head mounted device 10C shown in fig. 4 as an example, the battery 101 may be disposed in the connection unit 104A or the connection unit 104B, for example. In fig. 4, the battery 101 is disposed in the connection unit 104A as an example, but the disclosure is not limited thereto.

In other embodiments, a battery may also be provided in the head display unit 102. Fig. 5 is a schematic diagram illustrating yet another head mounted device according to an example embodiment. Taking the head mounted device 10D shown in fig. 5 as an example, the head display unit 102 may further include a connecting bracket 1022 connected between the two

frame members

1021A and 1021B, and the battery 101 may be disposed in the connecting bracket 1022, for example.

In addition, in some embodiments, a layer of heat conducting material may be disposed on the inner side (e.g., the side close to the wearer after wearing) of the

frame

1021A and 1021B, so that heat generated during the charging process can be transmitted to the periphery of the lens, and then the heat can be transmitted out through the larger heat dissipation area of the lens, thereby achieving the heat dissipation effect.

Furthermore, when the head-mounted device according to the embodiment of the present disclosure is charged through the device cartridge, since the head-mounted device has a plurality of wireless receiving coils, even if the device cartridge has only one transmitting coil, the head-mounted device can be charged through the charging channel formed by one of the plurality of wireless receiving coils and the transmitting coil. And because the two lens frames of the head-mounted device are provided with the receiving coils, the placing direction of the head-mounted device does not need to be considered.

It will be understood by those skilled in the art that the above-mentioned wireless receiving circuit further includes a shaping circuit for rectifying and/or filtering the alternating current output by the receiving coil. The position of the shaping circuit is not limited, and the shaping circuit can be designed according to the requirement of the whole product in practical application.

Referring to fig. 6A, the apparatus box 20 includes: charging interface 201, battery 202, and

wireless transmitting circuit

203A and 203B.

The wireless transmitting circuit 203A and the wireless transmitting circuit 203B are respectively connected to the charging interface 201, and are configured to convert the electric energy provided by the charging interface 201 or the electric energy provided by the battery 202 into an electromagnetic signal for transmission, so as to charge the head-mounted device in the above embodiments.

It should be noted that, although two

wireless transmitting circuits

203A and 203B are taken as an example in fig. 6A, more wireless transmitting circuits may be included, so as to form more wireless charging channels with the head-mounted device accommodated therein, and to accelerate the charging speed of the head-mounted device.

Referring to fig. 7, the device cartridge 20A includes a cartridge body 204.

The charging interface 201 may be disposed on the box 204, and is used for receiving the electric energy input by the power supply device. It should be noted that the position of the charging interface 201 is only an example, and does not limit the disclosure. In practical application, the charging interface 201 can be designed at any position of the box 204 according to practical requirements.

The wireless transmission circuit 203A and the wireless transmission circuit 203B shown in fig. 6A are respectively provided in the box 204.

The wireless transmission circuit 203A includes: the transmitting coil 2031A. The wireless transmission circuit 203B includes: the transmission coil 2031B.

When the head mounted device in the above-described embodiment is placed in the device case 20A shown in fig. 7 in the direction shown by the arrow in fig. 7, in order to align the two receiving coils in the head mounted device frame, the transmitting coil 2031A and the transmitting coil 2031B are provided on the front (front in the figure) side wall 2041 of the case body 204.

When the head-mounted device matched with the device box further includes other wireless receiving circuits, such as the wireless receiving circuit 103C in fig. 4, as shown in fig. 6B, the device box may also include another wireless transmitting circuit 203C, so that the wireless transmitting circuit 203C and the wireless receiving circuit 103C form another charging channel to charge the battery in the head-mounted device.

Taking the example where the receiving coil 1031C in the wireless receiving circuit 103C is placed on the connecting unit 104A near one end of the head display unit, the connecting

units

104A and 104B of the head-mounted device are folded and housed in the device case 20A shown in fig. 7, the transmitting coil 2031C in the other wireless transmitting circuit 203C in the device case 20A is placed on the other side wall 2042 opposite to the side wall where the transmitting coil 2031A and the transmitting coil 2031B are located, and when the head-mounted device is placed in the device case, the positions of the transmitting coil 2031C and the receiving coil 1031C are matched.

Fig. 8A is a schematic diagram illustrating charging of a battery 202 according to an example. Fig. 8B is a schematic diagram illustrating charging of a head-mounted device by a battery 202 according to an example. Fig. 8C is a schematic diagram illustrating charging of the battery 202 and charging of the head-mounted device simultaneously, according to an example.

As shown in fig. 8A to 8C, the device cartridge 20 may further include: a control module 205. The control module 205 can perform the functions of the control module 122 in the wireless charging device 12, and is further configured to control the power supplied by the battery 202 or the power input through the charging interface 201 to be input to the at least two wireless transmitting circuits.

The control module 205 may also be configured to detect whether the head-mounted device is accommodated in the device box, and the disclosure is not limited to how the control module 205 detects whether the head-mounted device is accommodated in the device box. For example, an infrared proximity sensor may be attached to a sidewall of the device box by an infrared detection method, and the control module 205 detects whether the head-mounted device is inserted into the box by sensing the infrared; or, by using the tact switch detection method, the tact switch is additionally installed at the bottom of the device box, and the control module 205 detects whether the head-mounted device is inserted into the box or not through a signal fed back by the tact switch.

When it is detected that the head mounted device is accommodated in the device case, it is detected whether the power supply device is connected to the device case through the charging interface 201. For example, the detection may be based on the USB protocol, and the specific USB protocol is not described herein.

When the power supply device is detected to be connected with the equipment box through the charging interface 201, the electric energy provided by the power supply device is input to the at least two wireless transmitting circuits; when the power supply device is not detected to be connected with the equipment box through the charging interface 201, the power provided by the battery 202 is input to the at least two wireless transmitting circuits.

In addition, as shown in fig. 8A-8C, the device cartridge 20B may also include a power management module 206.

As shown in fig. 8A, when the head-mounted device is not placed in the device case, the power management module 206 outputs the power supplied by the power supply apparatus 11 to the battery 202 to charge the battery 202.

As shown in fig. 8B, when the head-mounted device is set in the device case but the power supply apparatus 11 is not connected to the device case, the power management module 206 supplies the power output from the battery 202 to the

wireless transmission circuits

203A and 203B described above to wirelessly charge the head-mounted device.

As shown in fig. 8C, when the head-mounted device is placed in the device box and the power supply device 11 is connected to the device box 20C through the charging interface 201, the power management module 206 outputs the power supplied by the power supply device 11 to the battery 202 and the

wireless transmission circuits

203A and 203B at the same time to charge the battery 202 while wirelessly charging the head-mounted device.

The equipment box that this disclosed embodiment provided also has two at least wireless transmitting circuit, can form two at least wireless charging channels with two at least wireless receiving circuit in the head-mounted apparatus, charges for the battery in the head-mounted apparatus simultaneously, has greatly improved the speed of charging.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure 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.

Claims

1. A head-mounted device, comprising:

a battery;

a head display unit comprising: two mirror frames; and

the wireless receiving circuits are connected with the battery in parallel respectively and used for receiving electromagnetic signals transmitted by a wireless charging device and converting the electromagnetic signals into direct current to charge the battery;

wherein the at least two wireless receiving circuits respectively include: a receiving coil;

the receiving coils of two of the at least two wireless receiving circuits are respectively disposed in the two lens frames.

2. The headset of claim 1, wherein the at least two parallel wireless receiving circuits comprise: a first wireless receiving circuit and a second wireless receiving circuit; the first wireless receiving circuit includes: a first receiving coil; the second wireless receiving circuit includes: a second receiving coil; the first receiving coil and the second receiving coil are respectively disposed in the two lens frames.

3. The head-mounted apparatus of claim 1, further comprising: two foldable connection units respectively connected to both ends of the head display unit.

4. The headset of claim 3, wherein the at least two parallel wireless receiving circuits comprise: a first wireless receiving circuit, a second wireless receiving circuit and at least one third wireless receiving circuit; the first wireless receiving circuit includes: a first receiving coil; the second wireless receiving circuit includes: a second receiving coil; the at least one third wireless receiving circuit comprises: at least one third receiving coil; the first receiving coil and the second receiving coil are respectively disposed in the two lens frames, and the at least one third receiving coil is disposed in at least one of the two foldable connecting units.

5. Head-mounted device according to claim 3 or 4, characterized in that the battery is provided in one of the two foldably connected units.

6. The head-mounted device of any one of claims 1-4, wherein the battery is disposed in the head display unit.

7. The head mounted device of claim 6, wherein the head display unit further comprises a connecting bracket connected between the two frames, the battery being disposed in the connecting bracket.

8. Head-mounted apparatus according to any one of claims 1 to 4, wherein the inner sides of the two frames are provided with a heat conducting material.

9. An equipment box, comprising:

a case for accommodating a head-mounted device;

the charging interface is arranged on the box body and used for receiving electric energy input by the power supply device;

a battery;

the wireless transmitting circuits are respectively arranged in the box body, are respectively connected with the charging interface, and are used for converting electric energy provided by the charging interface or electric energy provided by the battery into electromagnetic signals to be transmitted so as to charge the head-mounted device; the at least two wireless transmission circuits respectively include: a transmitting coil; the transmitting coils are respectively arranged at the positions matched with the receiving coils of the head-mounted equipment accommodated in the transmitting coils.

10. The equipment box of claim 9, wherein the at least two wireless transmit circuits comprise: a first wireless transmission circuit and a second wireless transmission circuit; the first wireless transmission circuit includes: a first transmitting coil; the second wireless transmission circuit includes: a second transmitting coil.

11. The apparatus box according to claim 9 or 10, further comprising: and the control module is respectively connected with the battery and the charging interface and used for controlling the electric energy provided by the battery or the power supply device to be input to the at least two wireless transmitting circuits.

12. The device box according to claim 11, wherein the control module is configured to detect whether the power supply device is connected to the device box through the charging interface when the head-mounted device is accommodated in the device box; when the power supply device is detected to be connected with the equipment box through the charging interface, the electric energy provided by the power supply device is input to the at least two wireless transmitting circuits; and when the power supply device is not detected to be connected with the equipment box through the charging interface, the electric energy provided by the battery is input to the at least two wireless transmitting circuits.

13. A wireless charging system, comprising: the head mounted device according to any one of claims 1-8 and the device cartridge according to any one of claims 9-12; wherein the equipment box is used for accommodating the head-mounted equipment and wirelessly charging the head-mounted equipment.