Patent Description:
A conventional wearable device is usually charged in a wired manner, which requires a user to carry a charger around. In a case that the charger is not carried, the wearable device may not work properly caused by a dead or low battery.

<CIT> relates to an apparatus, comprising: a computing device; and a wristband coupled to the computing device, the wristband comprising: a movable carriage movable within the wristband, the movable carriage having a charging coil to wirelessly receive power from a charging device when the movable carriage is within a threshold distance from the charging device; and a connector device to send the power to the computing device.

The present disclosure provides a wearable device and a wearable system. The wearable device can be charged without using a charger, which improves convenience of use of the wearable device.

According to a first aspect, the present disclosure provides a wearable system, including a wearable device and an electronic device. The wearable device includes an annular-shaped wearing member and a first coil. The annular-shaped wearing member includes an outer annular surface, the first coil is accommodated inside the annular-shaped wearing member, and a laying surface of the first coil is arranged along a circumferential direction of the annular-shaped wearing member. The electronic device includes a second coil.

In a case that the outer annular surface partially abuts against the electronic device, the first coil and the second coil are disposed opposite to each other, and the first coil and the second coil that are in an energized state generate magnetic field lines in a same direction.

When a user is wearing the wearable device, the user does not need to remove the wearable device, but instead, may directly allow the outer annular surface of the annular-shaped wearing member to partially abut against the electronic device, so that the first coil is disposed opposite to the second coil. The second coil in the energized state generates an alternating magnetic field, and the first coil senses the alternating magnetic field of the second coil, to generate an induced current. This realizes the charging of the wearable device, thereby improving the convenience of use of the wearable device.

The annular-shaped wearing member refers to that the wearing member is in the annular shape when the wearable device is worn on a user's body. In other words, the wearing member may be in the annular shape, or may be spread in a plate shape, when the wearable device is not worn on a user's body.

The laying surface of the first coil refers to a mounting surface of the first coil.

In an embodiment, a normal to the laying surface through a winding center of the first coil passes through the outer annular surface, so that the first coil can sense the magnetic field lines passing through the laying surface of the first coil. When the wearable device is worn on a user's body, it can be charged without being removed, which enhances a battery life of the wearable device, thereby improving the convenience of use of the wearable device.

In an embodiment, the electronic device includes a rear cover. The second coil is mounted to an inner side of the rear cover. A normal to a laying surface of the second coil through a winding center of the second coil is perpendicular to the rear cover, to radiate magnetic field lines outward passing through the rear cover.

In an embodiment, in a case that the outer annular surface partially abuts against the electronic device, the first coil is disposed opposite to the second coil, and the normal through the winding center of the first coil is parallel or coincident with the normal through the winding center of the second coil, so that electromagnetic induction can be generated between the first coil and the second coil.

According to a second aspect, the present disclosure provides a wearable device, including an annular-shaped wearing member and a first coil. The first coil is accommodated inside the annular-shaped wearing member. A laying surface of the first coil is arranged along a circumferential direction of the annular-shaped wearing member. The first coil is configured to sense magnetic field lines passing through the laying surface of the first coil, to generate an induced current. The wearable device can be charged without a charger, which improves the convenience of use of the wearable device.

In an embodiment, the annular-shaped wearing member includes an outer annular surface. A normal to the laying surface through a winding center of the first coil passes through the outer annular surface, so that the first coil can sense the magnetic field lines passing through the laying surface of the first coil.

When a user is wearing the wearable device, the user does not need to remove the wearable device, but instead, may directly allow the outer annular surface of the annular-shaped wearing member to partially abut against the electronic device, so that the first coil is disposed opposite to a power supply coil of an external power supply device. The first coil can sense the magnetic field lines passing through the laying surface of the first coil, so as to realize the charging of the wearable device, thereby improving the convenience of use of the wearable device.

In an embodiment, the wearable device further includes a power supply and a magnetic isolation sheet. The power supply and the magnetic isolation sheet are accommodated inside the annular-shaped wearing member. The power supply is electrically connected to the first coil, and is located at an inner side of the magnetic isolation sheet. The first coil is located at an outer side of the magnetic isolation sheet.

A conventional power supply generally has a metal case. Therefore, in response to receiving an electromagnetic wave generated by the first coil, the metal case of the power supply generates an eddy current, and thereby generating an electromagnetic wave in the opposite direction to the electromagnetic wave of the first coil. As a result, the electromagnetic wave of the first coil is weakened, which causes reduction in the induced current of the first coil, thereby impairing the charging effect.

The magnetic isolation sheet can isolate the first coil from the metal case, to isolate attenuation and interference of the metal case of the power supply to the magnetic field of the first coil, which prevents energy waste, thereby improving the charging efficiency of the first coil.

In an embodiment, the laying surface of the first coil is an outer surface of the magnetic isolation sheet, that is, the isolation sheet supports and fixes the first coil. The first coil is formed by winding a wire along an edge of the outer surface of the magnetic isolation sheet, to form a relatively large coil inside the annular-shaped wearing member, which is advantageous for forming a relatively large magnetic induction loop. As such, a relatively larger number of magnetic field lines pass through the first coil, to generate a relatively large magnetic flux, and thereby generating a relatively large induced current. This helps to enhance the charging efficiency of the wearable device.

In an embodiment, the wearable device further includes an auxiliary circuit board. The auxiliary circuit board is electrically connected to the first coil. The magnetic isolation sheet is mounted to an inner surface of the auxiliary circuit board. The laying surface of the first coil is an outer surface of the auxiliary circuit board. That is, the auxiliary circuit board supports and fixes the first coil. The auxiliary circuit board the first coil is formed by winding a wire along an edge of the outer surface of the auxiliary circuit board, to form a relatively large coil inside the annular-shaped wearing member, which is advantageous for forming a relatively large magnetic induction loop. As such, a relatively larger number of magnetic field lines pass through the first coil, to generate a relatively large induced current. This helps to enhance the charging efficiency of the wearable device.

In an embodiment, a projection of the first coil on the inner surface of the auxiliary circuit board is at least partially located within a projection of the magnetic isolation sheet on the inner surface of the auxiliary circuit board. That is, the projection of the magnetic isolation sheet on the inner surface of the auxiliary circuit board at least partially covers the projection of the first coil on the inner surface of the auxiliary circuit board, to ensure that the isolation sheet can isolate the first coil from the metal case of the power supply.

In an embodiment, the annular-shaped wearing member includes a charging portion. The charging portion is made of a non-metallic material. The first coil is configured to sense the magnetic field lines via the charging portion.

It should be understood that, the first coil transfers energy by using the principle of alternating electromagnetic field induction. Therefore, the charging portion made of the non-metallic material effectively ensures that the first coil can sense the magnetic field lines, thereby realizing the charging of the wearable device.

In an embodiment, the outer annular surface is provided with a wearing identification, to identify a wearing position of the annular-shaped wearing member <NUM>. A projection of the first coil on the outer annular surface covers the wearing identification, or, a projection of the first coil on the outer annular surface is disposed opposite to the wearing identification. That is, a position of the first coil can be determined according to the wearing identification. A user can freely choose a placing position of the first coil when wearing the wearable device, to facilitate the charging of the wearable device with the first coil.

In an embodiment, the annular-shaped wearing member includes a first housing and a second housing fixedly connected to each other. The first housing and the second housing are enclosed to form an accommodation cavity. The accommodation cavity is configured to accommodate the first coil.

In an embodiment, the wearable device further includes a circuit board and a functional component. The circuit board is electrically connected to the first coil. The functional component is mounted to the circuit board, and is electrically connected to the circuit board, to realize functional diversity of the wearable device.

The circuit board is electrically connected to the power supply, and the first coil is electrically connected to the power supply via the circuit board.

In an embodiment, the functional component is mounted to an inner surface of the circuit board. The circuit board can buffer an external force received by the functional component when the wearable device is worn on a user's body. That is, the circuit board can protect the functional component.

It should be noted that, a ring has a relatively small size, which only allows a small space inside the annular-shaped wearing member for placing the power supply, therefore the power supply has a small capacity. When using the wearable device, a user needs to charge the power supply several times a day, which causes an inconvenience to the user. The wearable device according to the embodiments of the present disclosure can be charged without being removed, which overcomes this inconvenience, thereby improving user experience of the wearable device.

To describe the technical solutions in the embodiments of the present disclosure or the conventional technology more clearly, the following briefly describes the accompanying drawings required for describing the embodiments or the conventional technology.

The technical solutions in the embodiments of the present disclosure are described below with more details with reference to the accompanying drawings.

<FIG> is a schematic structural diagram of a wearable system <NUM> according to an embodiment of the present disclosure. <FIG> is a schematic diagram of a module structure of a wearable device <NUM> in the wearable system <NUM> shown in <FIG>.

The wearable system <NUM> includes the wearable device <NUM> and an electronic device <NUM>. The wearable device <NUM> is in a communicative connection with the electronic device <NUM>. In this embodiment, the wearable device <NUM> establishes the communicative connection with the electronic device <NUM> in a wireless manner. In some other embodiments, the wearable device <NUM> establishes the communicative connection with the electronic device <NUM> in a wired manner.

The wearable device <NUM> is a ring. In other examples, the wearable device may be a wearable electronic product, such as a watch, a smart watch, a wristband, a smart wristband, a pair of augmented reality (augmented reality, AR) glasses, an AR helmet, a pair of virtual reality (virtual reality, VR) glasses, a VR helmet, an electronic health testing device, a belt, a waist belt, a bracelet, an anklet, a necklace, and so on, or an ornament.

In this embodiment, the wearable device <NUM> is a smart ring, which can realize various functions by various embedded functional components. The wearable device <NUM> may include an annular-shaped wearing member <NUM>, a power supply <NUM>, a processor <NUM>, a wireless transceiver <NUM>, an inertial sensor <NUM>, and a physiological sensor <NUM>. The annular-shaped wearing member <NUM> is a finger ring, and is in an annular shape. The annular-shaped wearing member <NUM> includes an inner annular surface <NUM> and an outer annular surface <NUM> that are disposed opposite to each other. When a user is wearing the wearable device <NUM>, the inner annular surface <NUM> of the annular-shaped wearing member <NUM> provides a good fit to the skin of the users' finger, and the outer annular surface <NUM>, as an exterior appearance of the wearable device <NUM>, is exposed relative to the user's finger. The annular-shaped wearing member <NUM> being in the annular shape refers to that the annular-shaped wearing member <NUM> is in the annular shape when the wearable device <NUM> is worn on the user's body. In other words, the annular-shaped wearing member <NUM> may be in the annular shape, or may be spread in a plate shape, when the wearable device <NUM> is not worn on the user's body. It should be understood that, the annular-shaped wearing member <NUM> is not limited to the circular annular shape as shown in <FIG>, and alternatively, the annular-shaped wearing member <NUM> may be in a rectangular annular shape or any other special-shaped annular shape.

It should be noted that, orientation terms such as "inside" and "outside" for describing the wearable device <NUM> in the embodiments of the present disclosure are merely used with reference to a state where the wearable device <NUM> is worn on the user's finger. The term "inside" means a side close to the user's finger, and the term "outside" means a side away from the user's finger. These terms do not indicate or imply that an apparatus or element referred to need to have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present disclosure.

The power supply <NUM>, the processor <NUM>, the wireless transceiver <NUM>, the inertial sensor <NUM>, and the physiological sensor <NUM> are all accommodated inside the annular-shaped wearing member <NUM>. That is, the power supply <NUM>, the processor <NUM>, the wireless transceiver <NUM>, the inertial sensor <NUM>, and the physiological sensor <NUM> are all located between the inner annular surface <NUM> and the outer annular surface <NUM> of the annular-shaped wearing member <NUM>, to maintain the integrity of the appearance of the wearable device <NUM>, thereby improving the beauty of the appearance of the wearable device <NUM>. The power supply <NUM> is electrically connected with the processor <NUM>, the wireless transceiver <NUM>, the inertial sensor <NUM>, and the physiological sensor <NUM>, and is configured to provide power supply to the processor <NUM>, the wireless transceiver <NUM>, the inertial sensor <NUM>, and the physiological sensor <NUM>. The power supply <NUM> may be a lithium battery or any other energy storage component.

The wireless transceiver <NUM> is electrically connected to the processor <NUM>, and is configured to receive a signal sent by the electronic device <NUM>, and/or, send a signal to the electronic device <NUM>. That is, the wearable device <NUM> establishes the communicative connection with the electronic device <NUM> via the wireless transceiver <NUM>. The wireless transceiver <NUM> is a Bluetooth module, a WIFI module, or any other wireless communication module which can communicate with the electronic device <NUM>. It should be understood that, the electronic device <NUM> may be an electronic product, such as a smartphone, a tablet computer, a personal digital assistant (personal digital assistant, PDA), a mobile internet device (mobile internet device, MID), a smart wearable device, and so on. In this embodiment of the present disclosure, as an example, the electronic device <NUM> is a mobile phone.

It should be noted that, the term "and/or" in the embodiments of the present disclosure is merely association relationships for describing associated objects, which indicates that there may exist three types of relationships. For example, A and/or B may indicate: A exists alone, A and B exist at the same time, and B exists alone. The "and/or" in the following description may have the same meaning.

The inertial sensor <NUM> is electrically connected to the processor <NUM>, and is configured to detect an action of a finger (such as bending or shaking the finger) wearing the wearable device <NUM>, convert a detected finger action into a finger motion signal, and send a detected finger motion signal to the processor <NUM>. The inertial sensor <NUM> may include a three-axis acceleration sensor, and/or a three-axis angular velocity sensor, and/or a three-axis magnetic sensor, or any other type of inertial sensor <NUM> which can detect the action of the finger wearing the wearable device <NUM>. The three-axis acceleration sensor is configured to detect a change in a finger motion state; the three-axis angular velocity sensor is configured to detect a change in a finger motion gesture; and the three-axis magnetic sensor is configured to detect a finger pointing direction and its change. According to the changes in the finger motion state and the finger motion gesture, the finger action can be recognized, and content written with the finger can also be recognized. It should be understood that, according to the finger pointing direction when the finger is making an action, an electronic device to be controlled by the finger can be distinguished and controlled, in a case that the wearable device <NUM> is connected to a plurality of electronic devices at the same time.

The processor <NUM> is configured to receive the finger motion signal sent by the inertial sensor <NUM>, recognize the finger action according to the finger motion signal, generate a corresponding control instruction according to a recognized finger action, and send the control instruction to the electronic device <NUM> via the wireless transceiver <NUM>, in order to control the electronic device <NUM> to process business. For example, the electronic device <NUM> is controlled to turn on or off; alternatively, the electronic device <NUM> is controlled to perform audio services such as media and calls; alternatively, the electronic device <NUM> is controlled to process some other data services. The audio services may include media services, such as playing music, recordings, sounds in video files, background music in games, and incoming call prompts for users.

The physiological sensor <NUM> may be exposed relative to the outer annular surface <NUM> of the annular-shaped wearing member <NUM>, and is electrically connected to the processor <NUM>. The physiological sensor <NUM> is configured to monitor physiological indicator information of a wearer of the wearable device <NUM>, such as a heart rate, a pulse, a blood pressure, a blood oxygen, and so on, and send it to the electronic device <NUM> via the wireless transceiver <NUM>. An application program of the electronic device <NUM> may store the relevant physiological indicator information in a cloud through a network, which is convenient for users to access data via different networked smart terminals.

It should be understood that, the wireless transceiver <NUM>, the inertial sensor <NUM>, and the physiological sensor <NUM> are all functional components of the wearable device <NUM>. In some other embodiments, the wearable device <NUM> may include other functional components, such as a display screen or a near field communication (near field communication, NFC) chip. In this case, the display screen is electrically connected to the processor <NUM>, and is configured to display information, such as displaying a date, a time, or a weather, and/or, the physiological indicator information such as the wearer's heart rate, pulse, blood pressure, and blood oxygen, to facilitate users to observe or query information. The NFC chip is electrically connected to the processor <NUM>, for realizing a payment function of the wearable device <NUM>. For example, the NFC chip may virtualize a transportation card or a bank card of a wearer, so that when the wearer takes public transport to office or goes shopping, transaction settlement can be made by using the NFC chip and an external NFC terminal. There is no need for the wearer to carry the transportation card or the bank card, thereby improving the wearer's experience.

<FIG> is a partially exploded view of the wearable device <NUM> in the wearable system <NUM> shown in <FIG>. <FIG> is a schematic cross-sectional view of the wearable device <NUM> in the wearable system shown in <FIG> sectioned along an I-I direction. Being "sectioned along an I-I direction" refers to being sectioned along a plane where the I-I line is located, and the following related description may have the same meaning.

The annular-shaped wearing member <NUM> has a central axis O-O. The central axis O-O of the annular-shaped wearing member <NUM> refers to that the annular-shaped wearing member <NUM> is symmetric with respect to the central axis O-O. Specifically, the annular-shaped wearing member <NUM> includes a first housing <NUM> and a second housing <NUM>. The first housing <NUM> and the second housing <NUM> are fixedly connected to each other, and enclose to form an accommodation cavity <NUM>. The accommodation cavity <NUM> is configured to accommodate the power supply <NUM>, the processor <NUM>, the wireless transceiver <NUM>, the inertial sensor <NUM>, and the physiological sensor <NUM>. Exemplarily, the first housing <NUM> and the second housing <NUM> may be fixedly connected to each other by means of adhesion.

The first housing <NUM> includes a main body portion <NUM> and a fixing portion <NUM> that are fixedly connected to each other. The main body portion <NUM> and the fixing portion <NUM> are both in a circular annular shape. Specifically, the fixing portion <NUM> is fixedly connected to an end of the main body portion <NUM>, and extends from an inner surface in a direction toward an outer surface of the main body portion <NUM>. The inner surface of the main body portion <NUM> is the inner annular surface <NUM> of the annular-shaped wearing member <NUM>. Exemplarily, the first housing <NUM> is a structural component that is integrally formed by the main body portion <NUM> and the fixing portion <NUM>.

The second housing <NUM> includes a main body portion <NUM> and a fixing portion <NUM> fixedly connected to each other. The main body portion <NUM> and the fixing portion <NUM> are both in a circular annular shape. Specifically, the main body portion <NUM> of the second housing <NUM> and the main body portion <NUM> of the first housing <NUM> are disposed in parallel and spaced apart. An end of the main body portion <NUM> of the second housing <NUM> is fixedly connected to the fixing portion <NUM> of the first housing <NUM>. The fixing portion <NUM> of the second housing <NUM> is fixedly connected to the other end of the main body portion <NUM>, and is disposed in parallel and spaced apart with the fixing portion <NUM> of the first housing <NUM>. In this case, the fixing portion <NUM> of the second housing <NUM> extends from an inner surface of the main body portion <NUM> in a direction facing away from an outer surface. The outer surface of the main body portion <NUM> of the second housing <NUM> is the outer annular surface <NUM> of the annular-shaped wearing member <NUM>. Exemplarily, the second housing <NUM> is a structural component that is integrally formed by the main body portion <NUM> and the fixing portion <NUM>.

In addition, a surface of the fixing portion <NUM> of the second housing <NUM> facing the fixing portion <NUM> of the first housing <NUM> partially protrudes, to form an extension portion <NUM>. Specifically, the extension portion <NUM> is located at one end of the fixing portion <NUM> of the second housing <NUM> away from the main body portion <NUM>. The extension portion <NUM> is provided with a fixing groove <NUM>, and an opening of the fixing groove <NUM> is located on a surface of the extension portion <NUM> facing away from the fixing portion <NUM>. In this case, an end of the main body portion <NUM> of the first housing <NUM> facing away from the fixing portion <NUM> is fixedly connected to a groove wall of the fixing groove <NUM>.

The wearable device <NUM> also includes a circuit board <NUM>, a magnetic isolation sheet <NUM>, and a first coil <NUM>. The circuit board <NUM>, the magnetic isolation sheet <NUM>, and the first coil <NUM> are all accommodated inside the annular-shaped wearing member <NUM>. That is, the circuit board <NUM>, the magnetic isolation sheet <NUM>, and the first coil <NUM> are all accommodated in the accommodation cavity <NUM>. The circuit board <NUM> carries the processor <NUM>, the wireless transceiver <NUM>, the inertial sensor <NUM>, and the physiological sensor <NUM>. That is, the processor <NUM>, the wireless transceiver <NUM>, the inertial sensor <NUM>, and the physiological sensor <NUM> may all be integrated on the circuit board <NUM>.

The circuit board <NUM> includes an inner surface <NUM> and an outer surface <NUM> that are disposed opposite to each other. The processor <NUM>, the wireless transceiver <NUM>, the inertial sensor <NUM>, and the physiological sensor <NUM> are all mounted on the inner surface <NUM> of the circuit board <NUM>. During the use of the wearable device <NUM>, the circuit board <NUM> can buffer an external force received by the processor <NUM>, the wireless transceiver <NUM>, the inertial sensor <NUM>, and the physiological sensor <NUM>. That is, the circuit board <NUM> can protect the processor <NUM>, the wireless transceiver <NUM>, the inertial sensor <NUM>, and the physiological sensor <NUM>, to prevent them from being damaged due to the external force, thereby prolonging a service life of the wearable device <NUM>.

In addition, the circuit board <NUM> is a polyline-shaped board body, and is adapted to the shape of the annular-shaped wearing member <NUM>. Exemplarily, the circuit board <NUM> is a rigid-flex board. This ensure that it not only has a certain flexibility enabling itself to be bent into the polyline shape, thereby being adapted to the shape of the annular-shaped wearing member <NUM>, but also has a certain rigidity enabling to support the functional components, such as the processor <NUM>, the wireless transceiver <NUM>, the inertial sensor <NUM>, and the physiological sensor <NUM>. In some other embodiments, the circuit board <NUM> may be an arc-shaped board body or any other special-shaped board body.

In this embodiment, the circuit board <NUM> is fixedly connected to the inner surface of the main body portion <NUM> of the second housing <NUM>. Exemplarily, the circuit board <NUM> may be fixedly connected to the inner surface of the second housing <NUM> by means of adhesion. In this case, the wearable device <NUM> may further include an adhesive layer 70a. The adhesive layer 70a is connected between the outer surface <NUM> of the circuit board <NUM> and the inner surface of the main body portion <NUM> of the second housing <NUM>.

In some other embodiments, the processor <NUM>, the wireless transceiver <NUM>, the inertial sensor <NUM>, and the physiological sensor <NUM> may be mounted on the outer surface <NUM> of the circuit board <NUM>. In this case, the circuit board <NUM> may be fixed to the outer surface of the main body portion <NUM> of the first housing <NUM>. The adhesive layer 70a is connected between the inner surface <NUM> of the circuit board <NUM> and the outer surface of the main body portion <NUM> of the first housing <NUM>.

In this embodiment, the magnetic isolation sheet <NUM> is an arc-shaped plate body, and is adapted to the shape of the annular-shaped wearing member <NUM>. Specifically, the magnetic isolation sheet <NUM> is fixedly connected to the circuit board <NUM>, and is enclosed with the circuit board <NUM> to be an approximately circular annular-shaped plate body. In this case, the circular annular-shaped plate body is adapted to the shape of the annular-shaped wearing member <NUM>. The magnetic isolation sheet <NUM> includes an outer surface <NUM>. The outer surface <NUM> of the magnetic isolation sheet <NUM> is arranged along a circumferential direction of the annular-shaped wearing member <NUM>. That is, the outer surface <NUM> of the magnetic isolation sheet <NUM> is disposed around the central axis O-O of the annular-shaped wearing member <NUM>. Exemplarily, the outer surface <NUM> of the magnetic isolation sheet <NUM> is a circular arc surface, and a central axis of the outer surface <NUM> of the magnetic isolation sheet <NUM> is coincident with the central axis O-O of the annular-shaped wearing member <NUM>.

The power supply <NUM> is located at an inner side of the magnetic isolation sheet <NUM>, and is electrically connected to the circuit board <NUM>. As such, the power supply <NUM> is electrically connected to the processor <NUM>, the wireless transceiver <NUM>, the inertial sensor <NUM>, and the physiological sensor <NUM> via the circuit board <NUM>, to power the processor <NUM>, the wireless transceiver <NUM>, the inertial sensor <NUM>, and the physiological sensor <NUM>. Exemplarily, the power supply <NUM> may be electrically connected to the circuit board <NUM> via a connecting circuit board 20a. In this embodiment, the power supply <NUM> is in a shape of an arc-shaped plate, and is adapted to the shape of the magnetic isolation sheet <NUM>. During the use of the wearable device <NUM>, the magnetic isolation sheet <NUM> can buffer an external force received by the power supply <NUM>. That is, the magnetic isolation sheet <NUM> can protect the power supply <NUM>, to prevent the power supply <NUM> from being damaged due to the external force, thereby prolonging the service life of the wearable device <NUM>.

The power supply <NUM> is fixedly connected to the outer surface of the main body portion <NUM> of the first housing <NUM>. Exemplarily, the power supply <NUM> may be fixedly connected to the outer surface of the main body portion <NUM> of the first housing <NUM> by means of adhesion. In this case, the wearable device <NUM> may further include an adhesive layer 20b. The adhesive layer 20b is connected between the inner surface of the power supply <NUM> and the outer surface of the main body portion <NUM> of the first housing <NUM>.

It should be understood that, most functional components of the wearable device <NUM> are carried on the circuit board <NUM>, that is, most functional components are located on the same side of the wearable device <NUM> as the circuit board <NUM>. Therefore, the power supply <NUM> and the magnetic isolation sheet <NUM> are located on the other side of the wearable device <NUM>, which can ensure overall gravitational balance of the wearable device <NUM>, thereby improving user comfort when wearing the wearable device <NUM>.

The first coil <NUM> is located at an outer side of the magnetic isolation sheet <NUM>, and is electrically connected to the power supply <NUM>. In this embodiment, the first coil <NUM> has a forward charging mode. In the forward charging mode, the first coil <NUM> is configured to sense the magnetic field lines passing through a laying surface of the first coil <NUM>, to generate an induced current. The power supply <NUM> is configured to receive the induced current of the first coil <NUM>, so as to achieve charging. The laying surface of the first coil <NUM> is arranged along a circumferential direction of the annular-shaped wearing member <NUM>. That is, the laying surface of the first coil <NUM> is disposed around the central axis O-O of the wearable device <NUM>. It should be understood that, the laying surface of the first coil <NUM> refers to a mounting surface of the first coil <NUM>. In some other embodiments, the first coil <NUM> may have a reverse charging mode. In the reverse charging mode, under the action of an alternating current provided by the power supply <NUM>, the first coil <NUM> generates an alternating magnetic field, namely radiating alternating magnetic field lines outward, to charge an external device.

<FIG> is a schematic structural diagram of the wearable device <NUM> in the wearable system <NUM> shown in <FIG> according to an embodiment.

In this embodiment, the outer surface <NUM> of the magnetic isolation sheet <NUM> is the laying surface of the first coil <NUM>. Specifically, the first coil <NUM> is mounted to the outer surface <NUM> of the magnetic isolation sheet <NUM>, and is electrically connected to the circuit board <NUM>, so as to be electrically connected to the power supply <NUM> via the circuit board <NUM>. In other words, the first coil <NUM> is located at the outer side of the magnetic isolation sheet <NUM>, to facilitate electromagnetic induction with an external wireless power supply device. The first coil <NUM> receives an energy of the power supply device and output the energy, to allow the power supply <NUM> to receive and store the energy outputted by the first coil <NUM>, namely realizing charging the power supply <NUM>, thereby enhancing a battery life of the wearable device <NUM>. In this case, the first coil <NUM> and the magnetic isolation sheet <NUM> form a wireless charging module of the wearable device <NUM>. The wireless charging module may be fixedly connected to an outer surface of the power supply <NUM> or the inner surface of the main body portion <NUM> (as shown in <FIG>) of the second housing <NUM>. Exemplarily, the wireless charging module may be fixedly connected to the outer surface of the power supply <NUM> or the inner surface of the main body portion <NUM> of the second housing <NUM> by means of adhesion. In addition, the circuit board <NUM> may be provided with a power supply management module. The power supply management module is connected between the power supply <NUM> and the first coil <NUM>, to realize the electrical connection between the first coil <NUM> and the power supply <NUM>. Exemplarily, the power supply management module may include a charging circuit, a voltage drop regulation circuit, a protection circuit, and an electrical measurement circuit. The charging circuit is electrically connected to the first coil <NUM>, to receive an electrical signal inputted from an external power supply apparatus via the first coil <NUM>. The voltage drop regulation circuit is electrically connected to the charging circuit and the power supply <NUM>, so that the electrical signal inputted by the charging circuit may be undergone voltage transformation and then outputted to the power supply <NUM>, to complete the charging of the power supply <NUM>; in addition, an electrical signal outputted by the power supply <NUM> may be undergone voltage transformation and then outputted to the other functional components of the wearable device <NUM>, to provide power supply to the other functional components of the wearable device <NUM>. The protection circuit may be configured to prevent the power supply <NUM> from overcharge, over-discharge, short circuit, or over-current. In addition, the battery management module may be configured to monitor a capacity of the power supply <NUM>, the number of cycles of the power supply <NUM>, a health status of the power supply <NUM> (leakage, impedance) and other parameters. In some other embodiments, the wearable device <NUM> may include a charging interface. The charging interface is electrically connected to the power supply <NUM> via the circuit board <NUM>, to realize the charging of the power supply <NUM>.

It should be noted that, a conventional power supply generally has a metal case. Therefore, the magnetic isolation sheet <NUM> can not only support and pre-fix the first coil <NUM>, but also isolate the first coil <NUM> from the metal case of the power supply <NUM>, to prevent the metal case of the power supply <NUM> from generating an eddy current in response to receiving an electromagnetic signal generated by the first coil <NUM>, and thereby generating an electromagnetic signal in an opposite direction to an electromagnetic wave of the first coil <NUM>. The electromagnetic signal generated by the metal case of the power supply <NUM> will weaken the electromagnetic wave of the first coil <NUM>, which results in reduction of the induced current of the first coil <NUM>, thereby impairing the charging effect. Therefore, the magnetic isolation sheet <NUM> can reduce attenuation and interference of the metal case of the power supply <NUM> to the magnetic field of the first coil <NUM>, which plays a role of isolating metal. This can reduce energy waste, thereby improving the charging efficiency of the first coil <NUM>.

In this embodiment, a normal to the laying surface through a winding center C-C of the first coil <NUM> passes through the outer annular surface <NUM> of the annular-shaped wearing member <NUM>. Specifically, the first coil <NUM> is formed by winding a wire along an edge of the outer surface <NUM> of the magnetic isolation sheet <NUM>. The winding center C-C of the first coil <NUM> refers to a center around which the wire is wound. That is, the wire is wound around the winding center C-C in one or more layers to form the first coil <NUM>.

Exemplarily, the first coil <NUM> has three layers, which is formed by winding an end of a wire on the outer surface <NUM> of the magnetic isolation sheet <NUM>. The first coil <NUM> is formed by winding the end of the wire along an edge of the outer surface <NUM> of the magnetic isolation sheet <NUM>, to form a relatively large coil inside the annular-shaped wearing member <NUM>, which is advantageous for forming a relatively large magnetic induction loop. As such, a relatively larger number of magnetic field lines pass through the first coil <NUM>, to generate a relatively large induced current. This helps to enhance the charging efficiency of the power supply <NUM>. In some other embodiments, the first coil <NUM> may have one layer, two layers, three layers, four layers, or more than six layers. That is, the first coil <NUM> may have one layer or more layers.

<FIG> is a schematic structural diagram of the wearable device <NUM> in the wearable system <NUM> shown in <FIG> according to another embodiment.

In this embodiment, the wearable device <NUM> further includes an auxiliary circuit board <NUM>. The auxiliary circuit board <NUM> is electrically connected to the power supply <NUM> (as shown in <FIG>). Specifically, the auxiliary circuit board <NUM> is electrically connected to the circuit board <NUM> (as shown in <FIG>), so as to be electrically connected to the power supply <NUM> via the circuit board <NUM>. The auxiliary circuit board <NUM> is in a shape of an arc-shaped plate. The auxiliary circuit board <NUM> includes an outer surface 120a and an inner surface 120b that are disposed opposite to each other. The outer surface 120a of the auxiliary circuit board <NUM> is arranged along a circumferential direction away from the annular-shaped wearing member <NUM>. That is, the outer surface 120a of the auxiliary circuit board <NUM> is disposed around the central axis O-O (as shown in <FIG>) of the annular-shaped wearing member <NUM>. Exemplarily, the outer surface 120a of the auxiliary circuit board <NUM> is a circular arc surface, and a central axis of the outer surface 120a of the auxiliary circuit board <NUM> is coincident with the central axis O-O of the wearing member <NUM>.

Specifically, the magnetic isolation sheet <NUM> is mounted to the inner surface 120b of the auxiliary circuit board <NUM>. The first coil <NUM> is mounted to the outer surface 120a of the auxiliary circuit board <NUM>, and is electrically connected to the auxiliary circuit board <NUM>, so as to be electrically connected to the power supply <NUM> via the auxiliary circuit board <NUM> and the circuit board <NUM>. The laying surface of the first coil <NUM> is the outer surface 120a of the auxiliary circuit board <NUM>. The first coil <NUM> is formed by winding a wire along an edge of the outer surface 120a of the auxiliary circuit board 120a. In this case, the isolation sheet <NUM>, the first coil <NUM>, and the auxiliary circuit board form a wireless charging module of the wearable device <NUM>.

In addition, a projection of the isolation sheet <NUM> on the inner surface 120b of the auxiliary circuit board <NUM> covers a projection of the first coil <NUM> on the inner surface 120b of the auxiliary circuit board <NUM>. That is, the projection of the first coil <NUM> on the inner surface 120b of the auxiliary circuit board <NUM> is located within the projection of the isolation sheet <NUM> on the inner surface 120b of the auxiliary circuit board <NUM>. As such, the attenuation and interference to the magnetic field of the first coil <NUM> caused by the metal case of the power supply <NUM> can be reduced, which plays a role of isolating metal. This reduces energy waste, thereby improving the charging efficiency. In some other embodiments, the projection of the first coil <NUM> on the inner surface 120b of the auxiliary circuit board <NUM> may be partially located within the projection of the isolation sheet <NUM> on the inner surface 120b of the auxiliary circuit board <NUM>. That is, the projection of the first coil <NUM> on the inner surface 120b of the auxiliary circuit board <NUM> is at least partially located within the projection of the isolation sheet <NUM> on the inner surface 120b of the auxiliary circuit board <NUM>. <FIG> is a schematic structural diagram of the wearable system <NUM> shown in <FIG> in another state. <FIG> is a schematic cross-sectional view of the wearable system <NUM> shown in <FIG> sectioned along an II-II direction. In the state shown in <FIG>, a user is wearing the wearable device <NUM> and holding the electronic device <NUM>.

The electronic device <NUM> includes a housing <NUM>, a power supply <NUM>, and a second coil <NUM>. The power supply <NUM> and the second coil <NUM> are both mounted inside the housing <NUM>. The housing <NUM> includes a middle frame <NUM> and a rear cover <NUM>. The middle frame <NUM> is fixedly connected to the rear cover <NUM>. In this case, the power supply <NUM> and the second coil <NUM> are both mounted at a side of the rear cover <NUM> close to the middle frame <NUM>. That is, the power supply <NUM> and the second coil <NUM> are both mounted at an inner side of the rear cover <NUM>.

The second coil <NUM> is electrically connected to the power supply <NUM>. Specifically, the second coil <NUM> is located at a middle of the electronic device <NUM>. A normal to a laying surface of the second coil <NUM> through a winding center C'-C' of the second coil <NUM> is perpendicular to the rear cover <NUM>. The second coil <NUM> has a reverse charging mode. In the reverse charging mode, the second coil <NUM> is connected to the power supply <NUM>. Under the action of an alternating current provided by the power supply <NUM>, an alternating current passes through the second coil <NUM>, and the second coil <NUM> generates an alternating magnetic field, namely radiating alternating magnetic field lines outward. In some other embodiments, the second coil <NUM> may have a forward charging mode. In the forward charging mode, electromagnetic induction occurring between the second coil <NUM> and an external wireless power supply device charges the power supply <NUM>, so as to enhance a battery life of the electronic device <NUM>.

As shown in <FIG>, the outer annular surface <NUM> of the annular-shaped wearing member <NUM> partially abuts against the electronic device. The first coil <NUM> of the wearable device <NUM> and the second coil <NUM> of the electronic device <NUM> are disposed opposite to each other, and in addition, the two when being energized generate the magnetic field lines in the same direction. The normal through the winding center C-C of the first coil <NUM> is coincident with the normal through the winding center C'-C' of the second coil <NUM>. In some other embodiments, the normal through the winding center C-C of the first coil <NUM> may be disposed in parallel with the normal through the winding center C'-C' of the second coil <NUM>.

During the process that the user's hand is wearing the wearable device <NUM> and holding the electronic device <NUM>, when the outer annular surface <NUM> of the annular-shaped wearing member <NUM> partially abuts against the electronic device <NUM>, and the first coil <NUM> is disposed oppositely with the second coil <NUM>, the second coil <NUM> of the electronic device <NUM> may generate the alternating magnetic field under the action of the alternating current provided by the power supply <NUM>. The first coil <NUM> of the wearable device <NUM> senses the second coil <NUM> of the electronic device <NUM>, to couple with the second coil <NUM> of the electronic device <NUM>, which realizes that the electronic device <NUM> provides power supply to the wearable device <NUM> via the second coil <NUM>. In other words, when a user is wearing the wearable device <NUM>, the user does not need to remove the wearable device <NUM>, but instead, directly allow the outer annular surface <NUM> of the annular-shaped wearing member <NUM> to partially abut against the electronic device <NUM>, so that the first coil <NUM> and the second coil <NUM> are disposed opposite to each other. In this way, the wearable device <NUM> can be charged while the electronic device <NUM> is being used, which simplifies the charging manner of the wearable device <NUM>, and enhances the battery life of the wearable device <NUM>, thereby improving user experience.

It should be understood that, the first coil <NUM> generates the induced current under the action of the alternating magnetic field of the second coil <NUM>. Since the induced current is an alternating current, the first coil <NUM> also generates an alternating magnetic field, namely radiating alternating magnetic field lines M1 outward. In this case, the direction of the magnetic field lines M1 generated by the first coil <NUM> is the same as the direction of the magnetic field lines M2 generated by the second coil <NUM>. The direction of the magnetic field lines M1 when the first coil <NUM> is energized passes through the outer annular surface <NUM> of the annular-shaped wearing member <NUM>.

It should be noted that, a ring has a relatively small size, which only allows a small space inside the annular-shaped wearing member <NUM> for placing the power supply <NUM>, therefore the power supply <NUM> has a small capacity. When using the wearable device <NUM>, a user needs to charge the power supply <NUM> several times a day, which causes an inconvenience to the user. The wearable device <NUM> according to this embodiment of the present disclosure can be charged while the electronic device <NUM> is being used, which overcomes this inconvenience, thereby improving the user experience of the wearable device <NUM>.

In some other embodiments, during the process that the user's hand is wearing the wearable device <NUM> and holding the electronic device <NUM>, when the outer annular surface <NUM> of the annular-shaped wearing member <NUM> partially abuts against the electronic device <NUM>, and the first coil <NUM> is disposed opposite to the second coil <NUM>, the first coil <NUM> of the wearable device <NUM> generates an alternating magnetic field under the action of the alternating current provided by the power supply <NUM>. The second coil <NUM> of the electronic device <NUM> senses the first coil <NUM> of the wearable device <NUM>, so as to couple with the first coil <NUM> of the wearable device <NUM>. This realizes that the wearable device <NUM> provides power supply to the electronic device <NUM> via the first coil <NUM>.

As shown in <FIG>, the annular-shaped wearing member <NUM> includes a charging portion <NUM> disposed opposite to the first coil <NUM>. The charging portion <NUM> is made of a non-metallic material. The first coil <NUM> senses the magnetic field lines via the charging portion <NUM>. That is, the first coil <NUM> receives an energy emitted by an external power supply device via the charging portion <NUM>. That is, the first coil <NUM> senses the alternating magnetic field of the second coil <NUM> via the charging portion <NUM>, to generate the induced current. It should be understood that, the first coil <NUM> and the second coil <NUM> transfer energy therebetween by using the principle of alternating electromagnetic field induction. The charging portion <NUM> made of the non-metallic material effectively guarantees the energy transfer between the first coil <NUM> and the second coil <NUM>, thereby realizing the charging of the power supply <NUM> of the wearable device <NUM>. The non-metallic material may be plastic, polymer, and/or a material that does not affect electromagnetic induction, such as jade or any other mineral material.

In some other embodiments, the entire annular-shaped wearing member <NUM> may be made of the non-metallic material. That is, the entire annular-shaped wearing member <NUM> may be the charging portion <NUM>. In this case, a user may wear the wearable device <NUM> at will. When the outer annular surface <NUM> of the annular-shaped wearing member <NUM> abuts against the electronic device <NUM>, the first coil <NUM> senses the magnetic field lines via the annular-shaped wearing member <NUM>, so as to realize charging the wearable device <NUM>.

In this embodiment, the second housing <NUM> includes the charging portion <NUM>. Specifically, the charging portion <NUM> is a portion of the second housing <NUM> of the annular-shaped wearing member <NUM> that is just opposite to the first coil <NUM>. That is, a projection of the first coil <NUM> on the second housing <NUM> of the annular-shaped wearing member <NUM> just covers the charging portion <NUM>, so that each position of the first coil <NUM> facing a surface of the charging portion <NUM> can sense the alternating magnetic field of the second coil <NUM>, so as to generate the induced current. It should be understood that, a remaining portion of the second housing <NUM> except the charging portion <NUM> may be made of the non-metallic material, or be made of a metallic material. That is, the second housing <NUM> is at least partially made of the non-metallic material.

In some other embodiments, the charging portion <NUM> may not be the portion of the second housing <NUM> that is just opposite to the first coil <NUM>, but rather a portion of the second housing <NUM> that is partially opposite to the first coil <NUM>. Alternatively, the second housing <NUM> is the charging portion <NUM>. The present disclosure does not limit the position of the charging portion <NUM> on the annular-shaped wearing member <NUM>.

In addition, the outer annular surface <NUM> of the annular-shaped wearing member <NUM> is provided with a wearing identification <NUM>, to identify a wearing position of the annular-shaped wearing member <NUM>. In this embodiment, the wearing identification <NUM> is disposed opposite to a projection of the first coil <NUM> on the outer annular surface <NUM> of the annular-shaped wearing member <NUM>. That is, the wearing identification <NUM> is located in a region of the outer annular surface <NUM> of the annular-shaped wearing member <NUM> away from the first coil <NUM>. When a user is wearing the wearable device <NUM>, the wearing identification <NUM> faces outward, that is, the wearing identification <NUM> is located on a side close to the back of the user's hand. In this case, the first coil <NUM> is located on a side close to the user's palm. When the user is holding the electronic device <NUM>, the first coil <NUM> can be disposed just opposite to the second coil <NUM> of the electronic device <NUM>, to sense the alternating magnetic field of the second coil <NUM>, so as to generate a current, thereby realizing the charging of the power supply <NUM>. The wearing identification <NUM> may be a structure used for an identification purpose provided on the outer annular surface <NUM> of the annular-shaped wearing member <NUM>, such as an identification pattern (such as a five-pointed star or a loving heart), a bump, a depression, a micro-engraved line, a rough surface, or a polished surface, which can serve for identification, and at the same time, improve the beauty of the appearance of the wearable device <NUM>, thereby being conducive to personalized design of the wearable device <NUM>. It should be understood that, the outer annular surface <NUM> of the annular-shaped wearing member <NUM> may be provided with a decorative pattern or design, to improve the beauty of the appearance of the wearable device <NUM>.

Claim 1:
A wearable device (<NUM>), wherein the wearable device (<NUM>) is a smart finger ring comprising a power supply (<NUM>) in the form of an energy storage component, and various embedded functional components;
the wearable device (<NUM>) further comprises an annular-shaped wearing member (<NUM>) including a first annular shaped housing (<NUM>) and a second annular shaped housing (<NUM>) fixedly connected to each other, wherein said first housing (<NUM>) and second housing (<NUM>) are enclosed to form an accommodation cavity (<NUM>),
the wearable device (<NUM>) further comprises a circuit board (<NUM>) carrying the functional components, a first coil (<NUM>) for wireless power transfer and a magnetic isolation sheet (<NUM>), all accommodated in said cavity (<NUM>),
whereby the circuit board (<NUM>) has certain flexibility, forming a first approximately arc-shaped plate body compatible with the shape of the annular wearing member (<NUM>),
whereby the magnetic isolation sheet (<NUM>) forms a second arc-shaped plate body adapted to the shape of the annular-shaped wearing member (<NUM>),
whereby the magnetic isolation sheet (<NUM>) and the circuit board (<NUM>) are fixedly connected together to form an approximate annular plate body, adapted to the shape of the annular wearing member (<NUM>),
whereby the first coil (<NUM>) is located on an outer surface of the magnetic isolation sheet (<NUM>) and is electrically connected to the power supply (<NUM>),
whereby the power supply (<NUM>) is located on the inner side of the magnetic isolation sheet (<NUM>) and is electrically connected to the circuit board (<NUM>), the power supply (<NUM>) being in the shape of an arc plate, and adapted to the shape of the magnetic isolation sheet (<NUM>),
whereby the device comprises a wireless charging module with said first coil (<NUM>) which is configured to sense magnetic field lines passing through the laying surface of the first coil (<NUM>), to generate an induced current,
said first coil (<NUM>) having a forward charging mode during which the power supply (<NUM>) receives power, and a reverse charging mode during which the power supply (<NUM>) provides power to an external device like a phone,
wherein the functional components are mounted on the circuit board (<NUM>) and electrically connected to the circuit board (<NUM>).