WO2018053751A1

WO2018053751A1 - Wearable device antenna and wearable device

Info

Publication number: WO2018053751A1
Application number: PCT/CN2016/099717
Authority: WO
Inventors: 范毅; 孙树辉; 钱泽旭
Original assignee: 华为技术有限公司
Priority date: 2016-09-22
Filing date: 2016-09-22
Publication date: 2018-03-29
Also published as: CN109643844A; CN109643844B

Abstract

Provided in the present invention is a wearable device antenna. The wearable device antenna comprises a surface body and a circuit board; the surface body comprises a metal base and a metal crown, the metal crown covering the metal base and being insulated from the metal base; the circuit board is received in the space formed between the metal crown and the metal base; and the circuit board is electrically connected to the metal crown by means of a first transmission body, and the circuit board is electrically connected to the metal base by means of a second transmission body. Also provided in the present invention is a wearable device.

Description

Wearable device antennas and wearable devices

Technical field

The present invention relates to the field of smart wearable device technologies, and in particular, to a wearable device antenna and a wearable device.

Background technique

With the rapid development of technology, more and more applications of smart wearable devices, and antennas are indispensable components for intelligent wireless devices to achieve independent wireless communication. In the prior art, the antenna radiator of the wearable device is placed as a separate component in the wearable device, which occupies a large space inside the wearable device and affects the overall design of the wearable device.

Summary of the invention

The embodiment of the invention provides a wearable device antenna, which can avoid occupying too much internal space of the wearable device and facilitating multi-band operation.

The embodiment of the invention further provides a wearable device.

The antenna of the wearable device provided by the embodiment of the present invention includes a watch body and a circuit board, the watch body includes a metal base and a metal crown, and the metal crown covers the metal base and the metal base Insulating, the circuit board is received in the metal crown and the metal base forming space, and the circuit board is electrically connected to the metal crown through a first transmission body, and the circuit board passes through the second transmission body Electrically connected to the metal base. The wearable device antenna directly uses the metal crown and the metal base of the wearable device as a radiator to avoid occupying the internal space of the wearable device.

The metal crown and the metal base are insulated from the metal base by a non-metallic sealing ring that seals the metal crown. This can satisfy the use of the metal crown and the metal base as antenna radiators, and can also achieve the effect of sealing the body of the wearable device.

The metal crown and the metal base are insulated by a non-metal support body supported on the metal base to support the metal crown, so as to satisfy the use of the metal crown and the metal base as antenna radiators. .

The first transmission body is a feeding point provided on a metal crown, and the second transmission body is disposed on the a capacitance, an inductance or a wire of the circuit board; or the second transmission body is an electrical modulation device provided on the circuit board. Among them, the ESC device can further increase the function of the wearable device antenna to be tuned in the low frequency band.

The second transmission body is electrically connected to the metal base through the bullet or wire to achieve more stable contact.

The second transmission body is a feeding point disposed on the metal base, the first transmission body is a capacitor, an inductor or a wire disposed on the circuit board; or the first transmission body is disposed in the device An electrical modulation device for the circuit board.

The first transmission body is electrically connected to the metal base by the bullet or wire.

The circuit board is provided with a spring angle, and the spring angle is connected with the feed point to achieve more stable contact.

The watch body is provided with a hands and a needle shaft supporting the hands, the needle shaft body is an insulator and a metal segment is disposed on the outer circumference, and the metal base is connected to the circuit board at both ends of the metal segment to avoid external setting. The connector saves internal space.

The metal crown is provided with a wearable device adjustment button, the wearable device adjustment button housing is a metal body and insulated from the metal crown, and the circuit board and the wearable device adjustment button housing pass a feed In-point connection, the metal body wearable device adjusts the button housing to be used as a radiator simultaneously with the metal crown and the metal base, further increasing the radiator of the wearable device antenna.

The wearable device provided by the present application includes the wearable device antenna, a metal crown of the wearable device as a radiator of the wearable device antenna, and the metal bottom case as the wearable device antenna Another radiator.

The wearable device includes a watchband that is made of a non-metallic material to avoid affecting the body used as an antenna.

In summary, the wearable device antenna of the present application directly uses the metal crown and the metal base of the wearable device as a radiator, thereby avoiding occupying the internal space of the wearable device and simultaneously achieving a large radiation aperture and improving the antenna efficiency. bandwidth.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. Obviously, the drawings in the following description are only one of the present invention. For some embodiments, other drawings may be obtained from those skilled in the art without any inventive effort.

1 is a schematic plan view of a wearable device antenna according to an embodiment of the present invention.

2 is a schematic plan view of a wearable device antenna according to another embodiment of the present invention.

FIG. 3 is a schematic structural diagram of a wearable device according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.

The wearable device of the present invention includes a watch, a wristband, etc., and the wearable device can be used in conjunction with an electronic device such as a mobile phone, or can receive signals by itself. The watch is exemplified below, and the watch is a mechanical smart watch or an electronic smart wearable device.

Referring to FIG. 1 and FIG. 3 , an embodiment of the present invention provides a watch antenna 100 and a watch 200 including the watch antenna. The watch further includes a watch strap 220 , and the watch strap 220 is made of a non-metal material. The watch antenna 100 utilizes the body of the wristwatch 200 as an antenna radiator to realize an antenna function.

As shown in FIG. 1, the watch antenna 100 of the present invention includes a watch body 10 and a circuit board 20. The watch body 10 includes a metal base 11 and a metal crown 13 . The metal crown 13 is covered on the metal base 11 and insulated from the metal base 11 . The circuit board 20 is received in a space formed by the metal crown 13 and the metal base 11 , and the circuit board 20 is electrically connected to the metal crown 13 through a first transmission body 15 , the circuit board 20 The metal base 11 is electrically connected to the second transmission body 17. The metal crown 13 of the watch serves as a radiator of the watch antenna, and the metal base 11 serves as another radiator of the watch antenna, and can realize a low frequency working band of 700 MHz-900 MHz, and can also include other higher frequency bands. .

The body 10 is a cylinder or a rectangular parallelepiped or a cube structure. The metal crown 13 and the metal base 11 are all metal parts. The circuit board 20 is preferably a disk-shaped structure that is mounted on the surface of the metal base 11 facing the metal crown 13. The metal crown 13 is a circular groove-like structure provided with a window 130 for displaying a dial or an electronic display. The metal crown 13 is fastened to the metal base 11 to form a space. The metal crown 13 and the metal base 11 form a space for mounting other elements such as the watch movement of the wristwatch 200.

In this embodiment, the metal crown 13 and the metal base 11 are sealed by the metal The crown 13 is insulated from the non-metallic sealing ring 18 of the metal base 11. The sealing ring 18 is a ring-shaped rubber body, and is disposed on the periphery of the metal crown 13 and the metal base 11 to isolate the metal crown 13 from the metal base 11 to realize the metal sealing of the body 10 The crown 13 is insulated from the metal base 11. This makes it possible to satisfy the use of each of the metal crown 13 and the metal base 11 as an antenna radiator.

In other embodiments, the metal crown 13 and the metal base 11 are insulated by a non-metal support (not shown) that is mounted on the metal base 11 and supports the metal crown 13 . The non-metal support is a plastic or rubber body provided on the outer periphery of the surface of the metal base 11, and the non-metal support and the metal base 11 can be injection molded. The metal crown 13 can be clamped on the support body to be engaged with the metal base 11 . A dustproof and waterproof sealing ring may be disposed on the circumferential surface of the support body.

Further, the first transmission body 15 is a feeding point provided on the metal crown 13, and the second transmission body 17 is a capacitor, an inductor or a wire provided on the circuit board 20; or The second transfer body 17 is an electrical modulation device provided on the circuit board 20. The second transfer body 17 is electrically connected to the metal base 11 by a bullet or a wire.

In this embodiment, it is preferable that the second transmission body 17 is an inductor. The second transfer body 17 is soldered to one end of the circuit board 20 and electrically connected to the circuit board 20. The structure of the body 10 is a cylinder or a cube, and the positions of the feed points and the inductance are not limited. The second transmission body 17 is electrically connected to the metal base 11 by a bullet angle (one of the metal domes), thereby electrically connecting the circuit board 20 and the metal base 11. The circuit board 20 transmits signals through the second transmission body 17 and the metal base 11.

In other embodiments, the second transmission body 17 is an electrical adjustment device provided on the circuit board 20, which can increase the function of the watch antenna to be tuned in the low frequency band.

Further, the circuit board 20 is provided with an elastic angle (not shown), and the elastic angle is connected to the feeding point. Specifically, the circuit board 20 is soldered toward the surface of the metal crown 13 and is contacted by the feed point, that is, the first transfer body 15, to more reliably realize the connection between the circuit board and the feed point.

Referring to FIG. 2, in another embodiment, different from the above embodiment, the second transmission body 17 is a feeding point disposed on the metal base 11, and the first transmission body 15 is disposed in the The capacitor, the inductor or the wire of the circuit board 20; or the first transmission body 15 is an electrical modulation device provided on the circuit board 20. Specifically, the circuit board 20 is provided with a spring angle, and the spring angle is connected to the feeding point (the second transmission body 17). The first transfer body 15 is an inductor provided on the circuit board 20 . The first transfer body 15 is electrically connected to the metal base 11 by the bullet or wire.

In other embodiments, the body 10 is provided with a hands 132 and a needle shaft supporting the hands. The needle shaft is an insulator and a metal segment is disposed on the outer circumference. The metal segments are connected to the metal base 11 at both ends. It is connected with the circuit board 20, specifically to the feeding point of the metal base, so that the elastic angle can be saved, and the space inside the body 10 can be further saved.

Further, the metal crown 13 is provided with a watch adjustment button 14, the outer cover of the watch adjustment button 14 is a metal body and insulated from the metal crown 13, the circuit board 20 and the watch adjustment button 14 housing By a feed point connection, the watch adjustment button 14 housing is used as another radiator of the watch antenna to increase the radiation bandwidth.

The watch antenna 100 of the present application directly uses the metal crown 13 and the metal base 11 of the watch as a radiator, avoiding occupying the internal space of the watch and simultaneously achieving a large radiation aperture, thereby improving antenna efficiency and bandwidth.

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It is the scope of protection of the present invention.

Claims

An antenna for a wearable device, comprising: a watch body and a circuit board, the watch body comprising a metal base and a metal crown, the metal crown being covered on the metal base and insulated from the metal base The circuit board is received in the metal crown and the metal base forming space, and the circuit board is electrically connected to the metal crown through a first transmission body, and the circuit board passes through the second transmission body and the The metal base is electrically connected.
The wearable device antenna according to claim 1, wherein the metal crown and the metal base are insulated from the metal base by a non-metallic sealing ring that seals the metal crown.
The wearable device antenna according to claim 1, wherein the metal crown and the metal base are insulated by a non-metal support body supported on the metal base and supporting the metal crown.
The wearable device antenna according to claim 1 , wherein the first transmission body is a feeding point provided on a metal crown, and the second transmission body is a capacitor disposed on the circuit board, An inductor or a wire; or the second transmission body is an electrical modulation device provided on the circuit board.
The wearable device antenna according to claim 4, wherein the second transfer body is electrically connected to the metal base by the bullet or wire.
The wearable device antenna according to claim 1, wherein the second transmission body is a feeding point provided on the metal base, and the first transmission body is a capacitor disposed on the circuit board. And an inductor or a wire; or the first transmission body is an electrical modulation device provided on the circuit board.
The wearable device antenna according to claim 6, wherein the first transfer body is electrically connected to the metal base by a bullet or a wire.
The wearable device antenna according to claim 4 or 6, wherein the circuit board is provided with a bullet angle, and the bullet angle is connected to the feed point.
The wearable device antenna according to claim 6, wherein the body is provided with a hands and a needle shaft supporting the hands, the needle shaft is an insulator and the outer circumference of the needle shaft is provided with a metal segment. The two ends of the metal segment are connected to the second transmission body and the circuit board.
The wearable device antenna according to claim 1, wherein the metal crown is provided with a wearable device adjustment button, and the wearable device adjustment button housing is a metal body and the gold The crown is insulated, and the circuit board is connected to the wearable device adjustment button housing through a feed point.
A wearable device, comprising the wearable device antenna of claim 1-10, a metal crown of the wearable device as a radiator of the wearable device antenna, the metal bottom case Another radiator that is the antenna of the wearable device.
The wearable device according to claim 11, wherein the wearable device comprises a watchband, the watchband being made of a non-metallic material.