CN212626030U - Wearable equipment - Google Patents

Abstract

The utility model relates to an electronic equipment technical field specifically provides a wearable equipment, includes: the shell comprises a metal bottom shell and a metal frame arranged on the peripheral edge of the bottom shell, and the bottom shell and the frame form a structure with one side opened; the display panel is arranged at the open end of the shell and comprises a display area and a non-display area; the antenna structure comprises a feed terminal and a grounding terminal which are connected to the equipment mainboard, and a radiation branch section connected with the feed terminal and the grounding terminal; the radiation branch node extends on the plane of the display panel and is positioned in the non-display area of the display panel. The antenna of the device has good wearing performance and is simpler to tune.

Description

Wearable equipment

Technical Field

The utility model relates to an electronic equipment technical field, concretely relates to wearable equipment.

Background

With the development of electronic devices, smart wearable devices are increasingly popular with multiple users due to their diverse functions. Taking a smart watch as an example, a general smart watch integrates a plurality of functions such as motion assistance, track positioning, connection with an intelligent terminal and the like in addition to a basic timing function. To achieve these functions, a built-in antenna is required in the smart watch to receive and radiate signals. For example, in order to receive GPS signals, a watch requires a GPS satellite positioning antenna; for another example, in order to perform information interaction and connection with a mobile phone, a watch needs a bluetooth antenna; and the like.

With the development of wearable devices, more and more smart watches employ all-metal housings. The all-metal shell is that the bottom shell and the middle frame of the watch are made of metal materials, and the metal shell has better protection capability and greatly improves the appearance quality and the grade of the watch. However, the all-metal case also shields the internal antenna of the wristwatch, and this makes it difficult to design the antenna, and therefore, how to design the all-metal case antenna is an important research direction.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem of antenna design of wearable devices with all-metal housings, the embodiments of the present disclosure provide a wearable device.

The embodiment of the present disclosure provides a wearable device, including:

the shell comprises a metal bottom shell and a metal frame arranged on the peripheral edge of the bottom shell, wherein the bottom shell and the frame form a structure with one side opened;

the display panel is arranged at the opening end of the shell and comprises a display area and a non-display area; and

the antenna structure comprises a feed terminal and a ground terminal which are connected to an equipment mainboard, and a radiation branch section connected with the feed terminal and the ground terminal; the radiation branch is arranged on the plane of the display panel in an extending mode and located in the non-display area of the display panel.

In some embodiments, the radiating branches include first and second branches extending in opposite directions, the first and second branches extending for a length equal to one quarter of a wavelength of an operating frequency of the respective antenna.

In some embodiments, the display panel includes a display layer forming the display area and a cover sheet layer covering over the display area and the non-display area;

the radiation branch nodes are arranged on the outer surface of the cover plate layer; or the radiation branch knot is arranged on the inner surface of the cover plate layer.

In some embodiments, the display panel includes a display layer forming the display area and a cover sheet layer covering over the display area and the non-display area;

one of the first branch knot and the second branch knot is arranged on the outer surface of the cover plate layer, and the other branch knot is arranged on the inner surface of the cover plate layer.

In some embodiments, the device main board is disposed inside the housing, a feeding circuit module is disposed on the device main board, one end of the feeding terminal is electrically connected to the feeding circuit module, and the other end of the feeding terminal is connected to the radiation branch;

in some embodiments, the device main board is disposed inside the housing, and a feeding circuit module is disposed on the device main board; the feed terminal comprises a first feed end and a second feed end, the first feed end is in cross-connection with the feed circuit module and the first branch, and the second feed end is in cross-connection with the feed circuit module and the second branch.

In some embodiments, the radiation branches are located at the edge of the non-display area and extend along the edge of the non-display area.

In some embodiments, the non-display area of the display panel is an annular structure surrounding the middle display area, and the radiation branches extend along the annular structure of the non-display area.

In some embodiments, the antenna structure comprises at least one of:

bluetooth antenna, wifi antenna, satellite positioning antenna, 4G LTE antenna or 5G antenna.

In some embodiments, the wearable device is a smart watch or a smart bracelet.

The wearable device that this disclosed embodiment provided, including casing, display panel and antenna structure, the casing includes the drain pan and the frame of metal, drain pan and frame form one side and have open structure, display panel locates the opening end, display panel is including display area and non-display area, antenna structure includes feed terminal and ground terminal and the radiation minor matters of being connected with the equipment mainboard, the radiation minor matters is as the irradiator of antenna, it extends and is located non-display area on display panel's plane. Through setting up the radiation minor matters with the antenna on display panel, realize the antenna design of full metal casing equipment, and the wearing performance of equipment antenna is better, reduce or eliminate metal casing's equipment when wearing, wear the influence of limbs to equipment antenna, improve antenna radiation performance and efficiency greatly, on the non-display area of display panel was located to the radiation minor matters simultaneously, do not influence the normal demonstration of equipment, and can realize the resonant frequency adjustment through the extension length of adjustment radiation minor matters, it is simpler to the antenna tuning.

The wearable device provided by the embodiment of the disclosure, the radiation branch comprises a first branch and a second branch which extend towards opposite directions, and the extension length of the branch is equal to one quarter of the wavelength of the working frequency. Waves with different resonant frequencies are generated through the two branches, so that two different resonant frequencies are realized by utilizing one antenna structure, and for example, Bluetooth and GPS antennas are realized simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a wearable device according to some embodiments of the present disclosure.

Fig. 2 is a side view of a wearable device in some embodiments according to the present disclosure.

Fig. 3 is a schematic diagram of an antenna structure of a wearable device according to some embodiments of the present disclosure.

Fig. 4 is a graph of radiation efficiency of an antenna structure of a wearable device in free space according to some embodiments of the present disclosure.

Fig. 5 is a radiation efficiency curve of an antenna structure of a wearable device in an arm-worn state according to some embodiments of the present disclosure.

Description of reference numerals:

100-a housing; 110-a frame; 120-a bottom shell; 200-a display panel; 210-a display layer; 300-an antenna structure; 310-a feed terminal; 320-ground terminal; 331-first branch; 332-second branch; 400-equipment mainboard.

Detailed Description

The technical solutions of the present disclosure will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present disclosure, but not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure. In addition, technical features involved in different embodiments of the present disclosure described below may be combined with each other as long as they do not conflict with each other.

The wearable device provided by the embodiment of the disclosure is suitable for any form of wearable device with an all-metal shell, so that the antenna design of the all-metal shell device is realized.

The all-metal shell is that the equipment shell is the all-metal material to take the intelligent watch as an example, the shell of the watch includes the peripheral frame and the drain pan, and the frame and the drain pan are made of metal materials, and both can be made in the mode of drain pan and metal center integrated into one piece, and can also be connected together in the mode of connection such as screws. The metal shell has better protective capability, and the appearance quality and the grade of the watch are greatly improved. However, the all-metal case also shields the internal antenna of the watch, and this makes it difficult to design the antenna.

In smart wearable devices, various antennas are often included, such as a bluetooth antenna for establishing a connection with a smartphone; also for example a GPS antenna for positioning; for example, an LTE antenna for implementing base station communications; and the like.

Taking a smart watch as an example, the smart watch generally can realize functions such as motion assistance, trajectory positioning, and the like, and therefore generally includes at least one bluetooth antenna and one satellite positioning antenna. In a watch with a common plastic shell, an internal antenna can directly radiate and receive signals outwards, the antenna structure is easy to design, electromagnetic signals can be shielded with the increase of metal in the shell, and the design requirement of the antenna structure is higher and higher.

In the related art, when designing an antenna for a wristwatch with an all-metal case, a metal case is generally directly used as a radiator of the antenna, that is, electromagnetic waves are radiated and propagated through the metal case by using the metal case itself as a carrier. However, in actual use, when the watch is worn, the metal bottom case is tightly attached to the arm of the human body, so that the radiation efficiency of the antenna is greatly influenced, the performance of the arm of the device is poor, and the user experience is influenced.

Based on the above-mentioned drawbacks in the related art, embodiments of the present disclosure provide a wearable device.

In some embodiments, a wearable device of the present disclosure includes a housing, a display panel, and an antenna structure. The shell comprises a bottom shell and a frame arranged on the periphery of the bottom shell, the bottom shell and the frame are made of metal materials, and the bottom shell and the frame can be of an integrally formed structure and can also be connected into a whole by utilizing connection modes such as screws.

The shell that drain pan and frame formed has open cell type structure for one side, and electrical components such as equipment mainboard are placed to the inside of shell, and display panel then locates the open end of shell to form the display screen of equipment. The display panel includes a display area, which refers to a display area for displaying device information or interactive information, and a non-display area. And the non-display area refers to an area where the display panel does not provide a display, such as an edge of a cover plate.

The antenna structure comprises a feed terminal and a ground terminal which are connected to an equipment mainboard, wherein a corresponding circuit module is arranged on the equipment mainboard (pcb), and the feed terminal and the ground terminal are both connected to the equipment mainboard. The radiation branch section is a radiation source of the antenna and is electrically connected with the feed terminal and the grounding terminal, so that an antenna structure is formed. The radiation branches extend on the plane of the display panel, that is, the radiation branches are located on the plane of the display panel and located in the non-display area of the display panel.

It can know through the aforesaid, in the wearable equipment of this disclosed embodiment, utilize the radiation minor matters as the antenna radiation source, and the radiation minor matters is located the planar non-display area of display panel, thereby when equipment is worn, the radiation minor matters is located the one side that deviates from the human body, can not be worn the back at equipment and disturbed by limbs, improve antenna radiation performance and efficiency greatly, the radiation minor matters is located display panel's non-display area simultaneously, do not influence the normal demonstration of equipment, and can realize the resonant frequency adjustment through the extension length of adjustment radiation minor matters, it is simpler to the antenna tuning.

The wearable device provided by the embodiment of the disclosure is suitable for wearable devices with all metal shells of any types, such as watch-type devices such as smartwatches and smartbands; glass equipment such as intelligent glasses, VR glasses and AR glasses; for example, wearing equipment such as intelligent clothes and wearing pieces; etc., to which the present disclosure is not limited.

Fig. 1 to fig. 3 show a specific embodiment of the wearable device of the present disclosure, in which the wearable device takes a smart watch as an example. The present disclosure will be described in detail with reference to fig. 1 to 3.

The main body of the smart watch is a head part, and in the present embodiment, the head includes a case 100, a display panel 200, and an antenna structure 300. The case 100 is divided into a rim 110 and a bottom case 120, the bottom case 120 is a side case that is tightly attached to a human body when the watch is worn, and the rim 110 surrounds the periphery of the bottom case 120 to form a groove-shaped case structure.

In this embodiment, it can be seen that the bezel 110 and the bottom case 120 are integrally formed by metal. Of course, it will be understood by those skilled in the art that the bezel 110 and the bottom housing 120 may be two separate pieces, and are connected into a whole by a fixed connection means such as screws.

The casing 100 has a slot structure with an opening on one side, and the equipment motherboard 400, the battery and other components can be placed inside the casing 100. The device motherboard 400, i.e. the pcb motherboard of the watch, has integrated thereon a processor and corresponding control circuit modules. Since the present disclosure relates to an antenna structure, the details of other irrelevant electrical elements and circuit modules are not repeated, and those skilled in the art can certainly implement the present disclosure in light of the related art.

The display panel 200 is a display structure of the wristwatch and displays information of the wristwatch, such as time information, number of steps, physiological parameters, and exercise assistance. The display panel 200 covers the open end provided to the casing 100, thereby forming a device screen. The display panel 200 includes a display layer 210 and a cover plate layer, wherein the area of the display layer 210 is smaller than the cover plate layer, and the cover plate layer is generally a cover glass and is disposed over the display layer 210. After the display panel 200 is assembled, the display panel 200 has a display region formed by the display layer 210, and a non-display region other than the display region. Watch information is displayed in the display area, and the non-display area can be used as an edge support structure, an interaction area and the like of the display panel.

For the smart watch, one of the main functions of the smart watch is to establish a communication connection with the mobile terminal, and therefore, at least one bluetooth antenna needs to be included, and the antenna structure 300 of the present disclosure may implement a bluetooth antenna, or may be another antenna, which is not limited by the present disclosure.

As shown in fig. 3, antenna structure 300 includes a feed terminal 310, a ground terminal 320, and a radiating stub. The feeding terminal 310 is a feeding point of the antenna, and is bridged between the feeding circuit module of the device motherboard 400 and the radiation branch, so as to serve as an excitation source of the antenna, so that the radiation branch radiates the resonant electromagnetic wave outwards. The ground terminal 320 is the return point of the antenna, and the length L of the branch extending from the ground terminal 320 is the effective electrical length of the antenna.

In the antenna structure of the present disclosure, the length L of the radiation branch and the antenna operating frequency wavelength λ have the following relationship:

in the formula (1), C is the speed of light, and f is the resonant frequency of the antenna. As can be seen from equation (1), when the extension length of the radiation branch is designed, the effective length of the branch can be approximately one quarter of the wavelength of the working frequency.

In one example, taking a bluetooth antenna as an example, the center frequency of the bluetooth antenna is about 2.45GHz, i.e., f in formula (1) is 2.45GHz, and the length L of the minor matters can be obtained by substituting.

In another example, taking a GPS satellite positioning antenna as an example, the center frequency of a civil GPS L1 frequency band antenna is about 1.575GHz, i.e. f in equation (1) is 1.575GHz, and the length L of the minor matters can be obtained by substitution.

It should be noted that when the length of the radiation branch is designed, there may be other influence factors, for example, different injection molding materials may also influence the resonant frequency of the antenna, and therefore, it should be understood by those skilled in the art that, based on the foregoing disclosure, in combination with knowledge in the related art, a corresponding antenna design may be implemented, and details of the present disclosure are not repeated herein.

Through the aforesaid, this wearable equipment of this disclosure can realize resonant frequency adjustment through the extension length of adjusting the radiation minor matters, and is simpler to the antenna tuning.

With reference to fig. 3, in the present embodiment, the radiation branches include the first branch 331 and the second branch 332, the first branch 331 and the second branch 332 extend in opposite directions, and the extension lengths L of the two branches are designed by the equation (1), so that different resonance frequencies can be realized. In one example, the first branch 331 has a length L1 corresponding to a bluetooth operating frequency of 2.45GHz, and the second branch 332 has a length L2 corresponding to a GPS operating frequency of 1.575GHz, so that the first branch 331 and the second branch 332 can be radiators of a bluetooth antenna and a GPS antenna.

Of course, it is understood that in other embodiments, the radiating branches may include only one branch, and not extend to the other side. For example, the radiating branches comprise only the first branches 331 without the second branches 332, so that only one antenna structure is realized. Also, the wearable device of the present disclosure may also include a greater number of antennas if the device space allows, as long as the number of feed and ground terminals is increased accordingly, which is not limited by the present disclosure.

Referring to fig. 1 and 3, in the entire surface space of the display panel 200, a middle portion is a display region formed by the display layer 210, and an annular edge region is free of the display layer 210, thereby forming a non-display region. The radiation branches of the antenna structure 300 are disposed in the non-display region, so that the normal display of the display region is not affected.

In this embodiment, as can be seen from fig. 1, the radiation branches of the antenna structure 300 are arranged to extend along the edge of the non-display area. That is, the first and second branches 331 and 332 are disposed along the loop structure of the non-display area, thereby forming an arc-shaped structure. Of course, a greater number of antennas may be provided where space of the device allows, and the present disclosure is not limited thereto.

It should be noted that the radiation branch in the antenna structure 300 is a thin metal sheet (e.g., gold, silver, nickel, etc.), and therefore the radiation branch may be disposed on the surface of the display panel 200 as the appearance decoration of the watch, or may be disposed on the lower layer of the display panel 200.

In one example, as shown in fig. 1, the radiating branches are disposed on the outer surface of the cover board layer, that is, on the side surface of the cover board layer facing the outside of the device, so that the radiating branches serve as the appearance decoration of the watch. Because the radiation branch section is of a metal strip structure and has good appearance, the radiation branch section is used as a decorative strip of equipment, so that the equipment is more attractive.

In another example, the radiation branch is arranged on the inner surface of the cover plate layer, that is, the radiation branch is located on the side surface of the cover plate layer facing the inside of the device, so that the cover plate layer can well protect the radiation branch and prevent the antenna structure from being damaged.

In yet another example, the first and second branches 331, 332 of the radiating branch are one of disposed on an outer surface of the coverboard layer and the other of disposed on an inner surface of the coverboard layer. For example, the first branch 331 is disposed on the outer surface of the cover sheet layer, and the second branch 332 is disposed under the cover sheet layer, and the two are connected by bending the edge of the cover sheet layer.

It will be appreciated by those skilled in the art that the device described in the present disclosure may also have other numbers of antennas, and thus the radiating branches may also be arranged with reference to any of the examples described above, and the present disclosure is not limited thereto.

As shown in fig. 3, in the present embodiment, the first branch 331 and the second branch 332 are excited by feeding through the same feeding terminal 310, that is, the feeding terminal 310 is provided on the side close to the first branch 331. In another embodiment, the power feeding terminal 310 may be disposed on a side close to the second branch 332. In yet another embodiment, one feeding terminal is disposed on one side of each of the first branch 331 and the second branch 332, that is, one feeding terminal is disposed on each of two sides of the ground terminal 320, so that the two feeding terminals respectively feed and excite the two antennas. Those skilled in the art will no doubt understand and will fully appreciate this and the disclosure will not be described in detail herein.

In this embodiment, the first direct link 331 generates a resonant frequency that is the frequency of the bluetooth antenna, and the second branch 332 generates a resonant frequency that is the frequency of the GPS satellite positioning antenna. Fig. 4 and 5 show the radiation efficiency of both antennas in the present embodiment.

Fig. 4 shows the radiation efficiency of the bluetooth antenna and the GPS satellite positioning antenna of the wristwatch in this embodiment in free space, and fig. 5 shows the radiation efficiency of the bluetooth antenna and the GPS satellite positioning antenna of the wristwatch in an arm-worn state. Wherein the horizontal axis represents the resonance frequency and the vertical axis represents the radiation efficiency. As can be seen from fig. 4 and 5, the bluetooth antenna and the GPS satellite positioning antenna of the watch according to the present embodiment have good radiation performance, and in the arm wearing state, the antenna performance is attenuated less, and the radiation efficiency is higher.

It should be noted that the antenna structure of the watch in the above example is described by taking a bluetooth antenna and a GPS satellite positioning antenna as examples. In other embodiments, the antenna structure may also be any other antenna suitable for implementation, such as a wifi antenna, a 4G LTE antenna, or a 5G antenna, and the number of the device antennas may also be any other number suitable for implementation, which is not limited by the present disclosure.

Can know through the aforesaid, the wearable equipment that this disclosed embodiment provided, radiation minor matters through with the antenna sets up on display panel, realize the antenna design of all metal casing equipment, and the wearing performance of equipment antenna is better, the equipment that reduces or eliminate metal casing is when wearing, wear the influence of limbs to equipment antenna, improve antenna radiation performance and efficiency greatly, radiation minor matters locates on display panel's non-display area simultaneously, do not influence the normal demonstration of equipment, and can realize resonant frequency adjustment through the extension length of adjustment radiation minor matters, it is simpler to the antenna tuning. And the radiation branch comprises a first branch and a second branch, so that two different resonant frequencies are realized by using one antenna structure, and the antenna structure is simplified.

It should be understood that the above embodiments are only examples for clearly illustrating the present invention, and are not intended to limit the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the present disclosure may be made without departing from the scope of the present disclosure.

Claims (10)

1. A wearable device, comprising:

the shell comprises a metal bottom shell and a metal frame arranged on the peripheral edge of the bottom shell, wherein the bottom shell and the frame form a structure with one side opened;

the display panel is arranged at the opening end of the shell and comprises a display area and a non-display area; and

the antenna structure comprises a feed terminal and a ground terminal which are connected to an equipment mainboard, and a radiation branch section connected with the feed terminal and the ground terminal; the radiation branch is arranged on the plane of the display panel in an extending mode and located in the non-display area of the display panel.

2. The wearable device of claim 1,

the radiation branches comprise a first branch and a second branch which extend towards opposite directions, and the extension lengths of the first branch and the second branch are equal to one quarter of the wavelength of the working frequency of the respective antenna.

3. The wearable device of claim 1,

the display panel comprises a display layer and a cover plate layer, the display layer forms the display area, and the cover plate layer covers the display area and the non-display area;

the radiation branch nodes are arranged on the outer surface of the cover plate layer; or the radiation branch knot is arranged on the inner surface of the cover plate layer.

4. The wearable device of claim 2,

the display panel comprises a display layer and a cover plate layer, the display layer forms the display area, and the cover plate layer covers the display area and the non-display area;

one of the first branch knot and the second branch knot is arranged on the outer surface of the cover plate layer, and the other branch knot is arranged on the inner surface of the cover plate layer.

5. The wearable device of claim 1,

the equipment mainboard is arranged in the shell, a feed circuit module is arranged on the equipment mainboard, one end of the feed terminal is electrically connected with the feed circuit module, and the other end of the feed terminal is connected with the radiation branch.

6. The wearable device of claim 2,

the equipment mainboard is arranged inside the shell and is provided with a feed circuit module; the feed terminal comprises a first feed end and a second feed end, the first feed end is in cross-connection with the feed circuit module and the first branch, and the second feed end is in cross-connection with the feed circuit module and the second branch.

7. The wearable device of claim 1,

the radiation branch node is located at the edge of the non-display area and extends along the edge of the non-display area.

8. The wearable device of claim 7,

the non-display area of the display panel is an annular structure surrounding the middle display area, and the radiation branches extend along the annular structure of the non-display area.

9. The wearable device of claim 1, wherein the antenna structure comprises at least one of:

bluetooth antenna, wifi antenna, satellite positioning antenna, 4G LTE antenna or 5G antenna.

10. The wearable device of claim 1,

the wearable equipment is a smart watch or a smart bracelet.

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