WO2017075756A1

WO2017075756A1 - Watch band capable of providing additional power supply for electronic wearable device

Info

Publication number: WO2017075756A1
Application number: PCT/CN2015/093651
Authority: WO
Inventors: 黄进旋; 梁嘉威
Original assignee: 深圳长城开发科技股份有限公司; 飞先有限公司
Priority date: 2015-11-03
Filing date: 2015-11-03
Publication date: 2017-05-11

Abstract

A watch band capable of providing an additional power supply for an electronic wearable device, comprising a watch band body and a watch band circuit provided inside the watch band body. The watch band circuit comprises: a bendable flexible battery, used for providing a working power supply for a device body matched with the watch band capable of providing an additional power supply for an electronic wearable device; a charging unit, used for connecting to an external charging power supply to charge the bendable flexible battery; a first isolation unit, connected between an input of the charging unit and the working power supply in series; a power supply management unit, used for boosting a power supply voltage provided by the bendable flexible battery to a preset voltage and outputting the voltage; and a second isolation unit, connected between an output of the power supply management unit and the working power supply in series. The watch band body is provided with multiple electrical energy input terminals which are electrically connected to the input of the charging unit and multiple electrical energy output terminals which are used for providing the working power supply.

Description

Strap with additional power for electronic wearables

Technical field

The present invention relates to a watchband structure, and more particularly to a strap structure for mating an electronic wearable device.

Background technique

Existing electronic wearable devices, such as smart watches, generally include a device body (dial) and a watch strap that is coupled to the main body of the device, wherein most of the lithium battery used in the main body of the device is small in volume and low in capacity due to volume limitation. Electronic wearable devices have a short battery life. In order to improve the endurance of electronic wearable devices, some proposals have been made to improve the straps. For example, it has been proposed to add solar cells, vibration energy and thermoelectric energy converters on the strap, and then to the inside of the strap. The electric energy generated by the three transducer elements is used to supply power to the lithium battery in the main body of the watch; for example, it has been proposed not to provide a lithium battery in the main body of the device, but to arrange a lithium battery by using a large space of the watch band. The existing improvements cannot be well matched with the main body of the existing electronic wearable device, and since the rechargeable battery is mostly used in the electronic wearable device, simply adding the battery to the strap cannot be used. To achieve additional power supply to the electronic wearable device, it is necessary to have an external power supply greater than its voltage, and further improvement is necessary.

Summary of the invention

An object of the present invention is to provide a watchband capable of improving the endurance of an electronic wearable device and capable of providing an additional power supply for the electronic wearable device in a rechargeable dual mode.

The present invention provides a watchband that provides an additional power source for an electronic wearable device, including a watchband body and a strap circuit disposed in the strap body, the strap circuit including:

a bendable flexible battery for providing a working power source for the strap body of the strap that provides additional power for the electronic wearable device;

a charging unit for externally charging a charging power source to charge the bendable flexible battery;

a first isolation unit is disposed between the input of the charging unit and the working power source;

a power management unit for boosting a supply voltage provided by the bendable flexible battery to a set voltage and outputting;

a second isolation unit is serially disposed between the output of the power management unit and the working power source;

Wherein, the strap body is provided with a plurality of power input terminals electrically connected to the input of the charging unit and a plurality of power output terminals for providing the working power.

In some embodiments, the bendable flexible battery is a FLCB lithium battery.

In some embodiments, the first isolation unit is an isolation diode, and the second isolation unit is an isolation diode.

In some embodiments, the charging unit includes a single-cell lithium-ion battery charging chip, and the power management unit includes a boosting chip.

In some embodiments, the power management unit outputs a set voltage that is lower than a rating of the charging power source.

In some embodiments, the strap circuit further includes: a charge indicating unit controlled by the charging unit for providing an indication during charging of the bendable flexible battery.

In some embodiments, the strap circuit further includes: a charge indicating unit controlled by the charging unit for providing an indication after the fully bendable flexible battery is fully charged.

In some embodiments, the charge indicating unit and the charge indicating unit are controlled by a control signal provided by the charging unit, the control signal having two states of a low level and a high impedance state.

In some embodiments, the watch body has a flat structure with an opposite inner side surface and an outer side surface, wherein the power input terminals are disposed on the inner side surface, and the power output terminals are disposed on the outer side surface.

The present invention also provides an electronic wearable device comprising a device body and a strap coupled to the device body, the strap being a strap that provides additional power to the electronic wearable device as described above.

The invention can provide a strap for an additional power supply of the electronic wearable device to charge the bendable flexible battery in the watch body by cleverly including the charging unit and the first isolation unit in the strap circuit, and to supply the lithium battery in the main body of the device Charging, the voltage provided by the bendable flexible battery is raised to a set voltage by the power management unit, and the working power is supplied to the main body of the apparatus through the output of the second isolation unit, and the electric energy input is respectively set on the inner and outer surfaces of the main body of the strap. The terminal and the power output terminal can conveniently and reliably improve the endurance of the electronic wearable device, and can realize the rechargeable dual mode.

DRAWINGS

The above and other features and advantages of the embodiments of the present invention will be apparent from

1 is an electrical block diagram illustrating the circuit structure of a preferred embodiment of the present invention that provides an additional power supply for an electronic wearable device.

2A to 2D are each an electrical schematic diagram, FIG. 2A shows a circuit implementation of the charging unit and the first isolation unit, and FIG. 2B shows a circuit implementation of the power management unit and the second isolation unit, and FIG. 2C shows The circuit implementation of the charge indicating unit, and FIG. 2D shows the circuit implementation of the charge indicating unit.

3A to 3C are each a structural view, FIG. 3A is a front view, FIG. 3B is a top view, and FIG. 3C is a bottom view.

The reference numerals are as follows: 100 strap circuit 10 charging unit 20 power management unit 30 first isolation unit 40 second example unit 50 charging indication unit 60 fullness indicating unit 80 bendable flexible battery VIN Input voltage VOUT output voltage VBAT lithium battery voltage VD set output voltage; 200 strap body 1 first branch 2 second branch 11 first support part 12 first pivot part 13 input positive pole 14 input negative pole 15 output positive pole 16 output The negative terminal 17 retains the terminal 18 indicating the window.

detailed description

Referring to Figures 1 and 3C, Figure 1 is an electrical block diagram illustrating the circuit structure of a preferred embodiment of the present invention which provides an additional power supply for an electronic wearable device. 2A to 2D are each an electrical schematic diagram, FIG. 2A shows a circuit implementation of the charging unit and the first isolation unit, and FIG. 2B shows a circuit implementation of the power management unit and the second isolation unit, and FIG. 2C shows The circuit implementation of the charge indicating unit, and FIG. 2D shows the circuit implementation of the charge indicating unit. 3A to 3C are each a structural view, FIG. 3A is a front view, FIG. 3B is a top view, and FIG. 3C is a bottom view. The present invention provides an electronic wearable device, such as a smart watch, that includes a device body and a strap that is coupled to the device body to provide additional power to the electronic wearable device. The watchband of the present invention that provides an additional power source for the electronic wearable device includes a watchband body 200 and a strap circuit 100 disposed in the strap body 200. In the present embodiment, the strap body 200 is integrated with the strap circuit 100 and the strap circuit 100 is wrapped therein.

The strap circuit 100 generally includes: a bendable flexible battery 80 for providing a working power source VOUT for the strap body that can provide an additional power supply for the electronic wearable device; and a charging unit 10 for externally connecting one The charging power source VIN charges the bendable flexible battery 80; a first isolation unit 30 is serially disposed between the input of the charging unit 10 (ie, the charging power source VIN) and the working power source VOUT; a power management unit 20, The power supply voltage VBAT provided by the bendable flexible battery 80 is raised to a set voltage VD and output; a second isolation unit 40 is serially connected to the output VD of the power management unit 20 and the working power supply VOUT. a charging indicating unit 50 controlled by the charging unit 10 for providing an indication during charging of the bendable flexible battery 80; and a charging indicating unit 60 controlled by the charging unit 10 For providing an indication after the fully bendable flexible battery 80 is fully charged. It is worth mentioning that, through the first isolation unit 30 and the second isolation unit 40, when charging with an external charging line, the charging line can simultaneously charge the bendable flexible battery 80 and the lithium battery inside the device body to improve the charging efficiency. .

The bendable flexible battery 80 is a FLCB lithium battery (FPC Lithium Ceramic Battery), which can be bent almost to the extent of paper, and is well suited for use in a strap application.

The charging unit 10 includes a single-cell lithium ion battery charging chip U1. Preferably, the model number is BQ25101H. It is worth mentioning that a filter capacitor C5 is connected in parallel with the set resistor R3 connected to the charging current setting pin ISET. Preferably, the capacitance of the filter capacitor C5 is 10 microfarads. By setting the filter capacitor C5, it is possible to prevent transient effects that may be caused by unstable factors of the circuit, thereby ensuring stable charging current.

The power management unit 20 includes a boosting chip U2. Preferably, the model number is SY7088. The set voltage VD output by the power management unit 20 is lower than the rated value VIN of the charging power source. In the present embodiment, the rated value of the charging power source VIN is 5.0V. The output voltage VBAT of the bendable flexible battery 80 is rated at 3.7V. The set voltage VD is approximately 4.9V. The working power supply VOUT is approximately 4.6V.

The first isolation unit 30 is an isolation diode D1. Preferably, the model number is LBR551B.

The second isolation unit 40 is an isolation diode D2. Preferably, the model number is LBR551B.

The charging indicating unit 50 includes a red LED D3A and a PNP type transistor Q1 for driving the red diode D3A. The PNP type transistor Q1 is controlled by the /CHG pin of the chip U1.

The full charge indicating unit 60 includes a green photodiode D3B and an NPN type transistor Q2 for driving the green photodiode D3B. The NPN transistor Q2 is controlled by the /CHG pin of the chip U1. The /CHG pin of chip U1 is pulled up to VIN through resistor R1. It is worth mentioning that the charge indicating unit 60 and the charging indicating unit 50 are controlled by a control signal /CHG provided by the charging unit 10, and the control signal /CHG has two states of low level and high impedance state. These two states correspond to controlling the lighting of the red diode D3A and the green diode D3B.

The watch body 200 has a flat structure composed of a first branch 1 and a second branch 2 that cooperate with each other. The first branch 1 has an opposite inner side surface and an outer side surface. The head of the first branch 1 is provided with a first receiving portion 11 for supporting the main body of the apparatus and a first pivoting portion 12 for pivoting the main body of the apparatus. The head of the second branch 2 is provided with a second receiving portion 21 for supporting the main body of the apparatus and a second pivoting portion 22 for pivoting the main body of the apparatus.

The inner side surface of the first branch 1 is provided with two power input terminals 13, 14 for connecting the charging power source VIN. The outer side surface of the first branch 1 is provided with two

power output terminals

15, 16 and a spare reserve terminal 17, which are used to supply the operating power source VOUT. The strap body 200 is provided with a plurality of power input terminals electrically connected to the input of the charging unit and a plurality of power output terminals for providing the operating power. In addition, the front side surface of the head of the first branch 1 is provided with a transparent indicating window 18, and the aforementioned red photodiode D3A and green photodiode D3B are correspondingly disposed at the indicating window 18. In this embodiment, the first branch 1 is flexible and bendable.

The present invention can provide a strap for an additional power supply of the electronic wearable device to charge the bendable flexible battery 80 in the watch body 200 by subtly including the charging unit 10 and the first isolation unit 30 in the strap circuit 100, and to the device The lithium battery in the main body is charged, and the voltage provided by the bendable flexible battery 80 is raised to a set voltage VD by the power management unit 20 and outputted by the second isolation unit 40 to provide the working power supply VOUT to the device body, and The inner and outer surfaces of the main body 200 are respectively provided with the electric energy input terminals 13 and 14 and the electric

energy output terminals

15 and 16, which can easily and reliably improve the endurance of the electronic wearable device, and can realize the available dual mode.

However, the above description is only for the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the claims and the contents of the specification are still Within the scope of the claims of the present invention.

Claims

A watchband that provides an additional power source for an electronic wearable device, comprising a watchband body and a strap circuit disposed in the strap body, wherein the strap circuit includes:

a bendable flexible battery for providing a working power source for the strap body of the strap that provides additional power for the electronic wearable device;

a charging unit for externally charging a charging power source to charge the bendable flexible battery;

a first isolation unit is disposed between the input of the charging unit and the working power source;

a power management unit for boosting a supply voltage provided by the bendable flexible battery to a set voltage and outputting;

a second isolation unit is serially disposed between the output of the power management unit and the working power source;

Wherein, the strap body is provided with a plurality of power input terminals electrically connected to the input of the charging unit and a plurality of power output terminals for providing the working power.
The watchband according to claim 1, wherein the bendable flexible battery is a FLCB lithium battery.
The watchband according to claim 1 , wherein the first isolation unit is an isolation diode, and the second isolation unit is an isolation diode.
The watchband according to claim 1, wherein the charging unit comprises a single-cell lithium-ion battery charging chip, and the power management unit comprises a boosting chip.
The watchband according to claim 1, wherein the set voltage output by the power management unit is lower than a rating of the charging power source.
The watchband according to claim 1, wherein the watchband circuit further comprises: a charge indicating unit controlled by the charging unit for flexibly flexible Instructions are provided during the charging of the battery.
The watchband according to claim 6, wherein the strap circuit further comprises: a charge indicating unit controlled by the charging unit for bending at the battery unit The flexible battery provides an indication after being fully charged.
A watchband capable of providing an additional power supply for an electronic wearable device according to claim 7, wherein the charge indicating unit and the charge indicating unit are controlled by a control signal provided by the charging unit, the control signal having a low Two states, level and high impedance.
The watchband according to claim 1, wherein the watch body has a flat structure with an opposite inner side surface and an outer side surface, wherein the power input terminals are disposed at the On the inner side surface, these power output terminals are disposed on the outer side surface.
An electronic wearing device comprising a device body and a strap coupled to the device body, wherein the strap is an additional power source capable of providing an electronic wearing device according to any one of claims 1 to 9. Strap.