Wearable device

Abstract

The utility model discloses a wearable device, which comprises a back plate, a display assembly, a shell and an antenna, and devices for realizing functions required by the wearable device are arranged on the back plate; the display assembly is arranged above the back plate and is connected with related devices on the back plate; the antenna is connected with the radio frequency unit on the back plate through a feeding point arranged at the edge of the back plate; the back plate, the display assembly and the antenna are arranged in the shell, the shell is made of a non-metal material, the antenna is arranged between the back plate and the display assembly and surrounds the display assembly by a circle, and the radiation direction of the antenna is perpendicular to the display assembly. According to the technical scheme of the embodiment of the utility model, the wireless communication capability of the wearable equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of antenna technology, and in particular to a wearable device. Background Technology

[0002] With the miniaturization of electronic devices, wearable devices have gradually become indispensable personal devices for many users. Wearable devices come in many varieties, generally integrating multiple functions and typically based on wireless communication technology to transmit data with the outside world. However, due to their portability and limited size, wearable devices still need to house various functional components. Therefore, designing high-performance antennas within wearable devices is a crucial task for improving their performance. Utility Model Content

[0003] This invention provides a wearable device that improves the wireless communication capabilities of wearable devices.

[0004] In a first aspect, this utility model provides a wearable device, including: a back panel, a display component, a housing, and an antenna;

[0005] The backplane houses the components required to enable the wearable device's functionality;

[0006] The display components are located above the back panel and connected to the relevant devices on the back panel;

[0007] The antenna is connected to the radio frequency unit on the back panel via a feed point located at the edge of the back panel;

[0008] The back panel, display component, and antenna are housed within the housing, which is made of non-metallic material. The antenna is positioned between the back panel and the display component, and it is arranged around the display component. The antenna's radiation direction is perpendicular to the display component.

[0009] In one possible implementation of the first aspect, the antenna is disposed inside the housing in a region perpendicular to the display component.

[0010] In one possible implementation of the first aspect, the antenna consists of a metallic radiator and an insulating layer protecting the radiator.

[0011] In one possible implementation of the first aspect, the antenna includes at least one radiating stub, each radiating stub operating at a different frequency band.

[0012] In one possible implementation of the first aspect, there is a first gap between the antenna and the display component, and a second gap between the antenna and the back panel.

[0013] In one possible implementation of the first aspect, the wearable device is a smartwatch or a smart bracelet.

[0014] In one possible implementation of the first aspect, the antenna's radiation direction avoids the direction in which the wearable device faces the ground when it is worn.

[0015] In one possible implementation of the first aspect, the material of the outer casing above the display component is glass.

[0016] In one possible implementation of the first aspect, the antenna is connected to a feed point located at the edge of the backplane via an FPC.

[0017] In one possible implementation of the first aspect, an impedance matching circuit is provided on the FPC.

[0018] The wearable device provided in this embodiment includes: a back panel, a display component, a housing, and an antenna. Devices that enable the functions required by the wearable device are deployed on the back panel. The display component is positioned above the back panel and connected to related devices on the back panel. The antenna is connected to a radio frequency unit on the back panel through a feed point located at the edge of the back panel. The back panel, display component, and antenna are housed within the housing, which is made of non-metallic material. The antenna is positioned between the back panel and the display component, and it is arranged around the display component with its radiation direction perpendicular to the display component.

[0019] Wearable devices that deploy antennas in this way improve their wireless communication capabilities and save space, which is beneficial for miniaturization. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of a wearable device provided in an embodiment of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of another wearable device provided in an embodiment of the present utility model. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0023] Figure 1 This is a schematic diagram of the structure of a wearable device provided in an embodiment of the present utility model, as shown below. Figure 1 As shown, the wearable device provided in this embodiment of the present invention includes:

[0024] Back panel 11, display assembly 12, housing 13 and antenna 14.

[0025] The backplane 11 houses the components required for the wearable device's functions. The backplane 11 serves as the wearable device's motherboard, containing various chips and components such as a processor, memory, and radio frequency (RF) unit. These components are connected via traces on the backplane 11 to achieve the main functions of the wearable device. The wearable device can be any type requiring wireless communication capabilities. It uses wireless communication to interact with the outside world and uses internal components to process the data, thus achieving the required functions. The components on the backplane 11 can be those that only implement the essential functions of the wearable device, such as at least the driving circuitry and power supply circuitry for the display component 12, and an RF unit for processing the RF signals received or transmitted by the antenna 14.

[0026] The wearable device has a display function, which is achieved by deploying a display component 12. The display component 12 can be any type of display component, such as a liquid crystal display (LCD), a light-emitting diode (LED), or an organic light-emitting diode (OLED). The display component 12 is connected to related devices on the back panel 11. The antenna 14 is connected to the radio frequency unit on the back panel 11 through a feed point 15 located at the edge of the back panel 11. The back panel 11, the display component 12, and the antenna 14 are disposed within a housing 13, which is made of a non-metallic material to avoid affecting the radiation performance of the antenna 14. Inside the housing 13, the display component 12 is positioned above the back panel 11 to cover the back panel 11, so that the user can only see the content displayed by the display component 12 and cannot directly see the back panel 11 and the devices on it. The antenna 14 is positioned between the back panel 11 and the display component 12, and the antenna 14 is arranged around the display component 12.

[0027] Since the backplane 11 is generally a large-area copper-clad printed circuit board (PCB) or flexible printed circuit board (FPC), the copper cladding on the backplane 11 will affect the radiation performance of the antenna 14. Furthermore, various devices deployed on the backplane 11 may also affect the radiation performance of the antenna 13, and the electromagnetic waves radiated by the antenna 13 may also affect the normal operation of the devices deployed on the backplane 11. Similarly, there may be mutual influence between the display component 12 and the antenna 14. Therefore, properly positioning the antenna 14 in a wearable device is a crucial factor in ensuring the normal operation of the wearable device. Only wearable devices with properly positioned antenna 14 can pass electromagnetic compatibility (EMC) tests. In this embodiment, the antenna 14 is positioned between the backplane 11 and the display component 12, and the antenna 14 is arranged around the display component 12. On the one hand, since the display component 12 is located above the back panel 11, most of the components on the back panel 11 are located below the back panel 11, far from the antenna 14, resulting in minimal mutual interference between the antenna 14 and the components on the back panel 11. On the other hand, the antenna 14 is arranged around the display component 12, which also avoids mutual interference between the antenna 14 and the display component. Therefore, in the wearable device provided in this embodiment, the antenna 14 has good radiation performance, thereby improving the wireless communication capability of the wearable device.

[0028] The radiation direction of antenna 14 is perpendicular to display component 12. The direction in which display component 12 faces is generally the primary direction of the wearable device. When a user wears the wearable device, display component 12 typically faces outwards, with its opposite side facing the user's body. Therefore, the radiation direction of antenna 14 cannot be directed towards the user's body, as this would severely affect its radiation performance. Conversely, if the radiation direction is directed towards display component 12, it will also be affected by interference from the display component 12, thus impacting its radiation performance. Therefore, the radiation direction of antenna 14 can be adjusted to be perpendicular to display component 12. This ensures that the electromagnetic waves radiated by antenna 14 are not affected by other components in the wearable device and are also protected from interference from the user's body, thereby guaranteeing good wireless communication performance for the wearable device.

[0029] The wearable device provided in this application includes a back panel, a display component, a housing, and an antenna. Devices required for the wearable device's functions are deployed on the back panel. The display component is positioned above the back panel and connected to related devices on the back panel. The antenna is connected to a radio frequency unit on the back panel via a feed point located at the edge of the back panel. The back panel, display component, and antenna are housed within the housing, which is made of a non-metallic material. The antenna is positioned between the back panel and the display component, surrounding the display component and radiating perpendicularly to it. This method of antenna deployment improves the wearable device's wireless communication capabilities, saves space, and facilitates miniaturization.

[0030] In one embodiment, the antenna 14 is disposed within the housing 13 in a region perpendicular to the display component 12. The wearable device includes a backplate 11 for deploying components and the display component 12, thus having a certain thickness. Therefore, the antenna 14 can be disposed on the side of the wearable device perpendicular to the display component 12, allowing the radiation direction of the antenna 14 to be easily set in a direction perpendicular to the display component 12. The antenna 14 can also be arranged around the display component 12. To facilitate the arrangement of the antenna 14, it can be disposed within the area inside the housing 13 perpendicular to the display component 13, specifically on the side of the wearable device perpendicular to the display component 12. No other components or structures need to be deployed on the side of the housing 13 containing the display component 12, thus providing ample space for the antenna 14. Furthermore, the shape of the antenna 14 can be specifically designed according to radiation performance requirements. Deploying the antenna 14 on the side of the housing 13 allows for a complete circumferential deployment within the wearable device's side housing 13, avoiding electromagnetic interference problems caused by incomplete antenna wiring.

[0031] There may be a first gap between the antenna 14 and the display component 12, and a second gap between the antenna 14 and the back panel 11. The first and second gaps are set within a reasonable range to reduce mutual interference between the antenna 14, the display component 12, and the back panel 11, while ensuring that the net space reserved for the antenna 14 is within a reasonable range and does not affect the miniaturization design of the wearable device. For example, the first gap is 0.5 mm to 1.5 mm. The second gap is, for example, 0.3 mm to 1 mm.

[0032] Antenna 14 can be any type of antenna. Since antenna 14 is arranged around the display component 12, and the space available for antenna 14 in the wearable device is limited, it can optionally be a microstrip antenna. Microstrip antennas require less net space, and surrounding the display component 12 means surrounding the inside of the wearable device housing 13. This allows antenna 14 to utilize the longest available length in the wearable device. According to the principle of antenna radiation, the antenna length is positively correlated with the antenna's operating frequency band, and the equivalent length of the antenna is generally close to one-half or one-quarter of the wavelength corresponding to the operating frequency band. Antenna 14 is made of flexible material and is bent around the housing 13, which is perpendicular to the display component 12. The width of antenna 14 is generally controlled between 1 mm and 3 mm, and the thickness is generally between 0.1 mm and 0.3 mm. This ensures the radiation performance of antenna 14 without excessively occupying space or affecting the overall thickness of the wearable device.

[0033] In one embodiment, the antenna 14 in the wearable device provided in this application includes at least one radiating stub, each stub operating at a different frequency band. That is, the wearable device has at least one operating frequency band, and each operating frequency band has a corresponding radiating stub. Depending on its required functions, the wearable device may have Bluetooth communication capabilities, Wireless Fidelity (WiFi) communication capabilities, 4th Generation (4G) or 5th Generation (5G) mobile communication capabilities, Radio Frequency Identification (RFID) communication capabilities, etc. Different wireless communication capabilities operate at different frequency bands; therefore, configuring corresponding antenna radiating stubs for different operating frequency bands allows the wearable device to achieve good wireless signal transmission and reception performance in each wireless operating frequency band. When the antenna 14 includes two or more radiating stubs, each radiating stub is connected to the radio frequency unit on the backplane 11 through an independent feed point 15.

[0034] In one embodiment, the antenna 14 consists of a metallic radiator and an insulating layer protecting the radiator. Wearable devices are generally small in size and contain numerous internal components. Encasing the metallic radiator of the antenna 14, which performs the electromagnetic signal transmission and reception function, with an insulating layer prevents short circuits between the antenna 14 and other metal structures or components in the wearable device, thus avoiding any impact on the antenna 14's radiation performance. The metallic radiator in the antenna 14 can be made of a highly conductive material, such as copper foil or silver paste, and a specific antenna pattern can be fabricated using photolithography, etching, or other processes to achieve good signal radiation and reception capabilities. The insulating side of the antenna 14 can be made of insulating materials such as polyimide or epoxy resin, and the material of the insulating layer can be controlled, for example, between 0.05 mm and 0.15 mm.

[0035] The wearable device provided in this application embodiment can optionally be a smartwatch or a smart bracelet. Since both smartwatches and smart bracelets have display functions and need to establish communication connections with external terminal devices or mobile networks, and some smartwatches or smart bracelets also have wireless communication requirements such as Near Field Communication (NFC) or RFID, they require the installation of antennas. To achieve better display effects, smartwatches or smart bracelets generally use large display components, typically occupying most of the front area. Therefore, the antenna design in the wearable device provided in this application embodiment does not affect the placement of the display components or the display effect of the smartwatch or smart bracelet, while also ensuring good antenna radiation performance.

[0036] When the wearable device is a smartwatch or smart bracelet, since it is worn on the user's wrist, the back of the smartwatch or smart bracelet, which is below the display component 12, is in close contact with the user's body, and the front of the smartwatch or smart bracelet, which is above the display component 12, is also unsuitable as the radiation direction of the antenna 14. Therefore, the radiation direction of the antenna 14 is the side of the smartwatch or smart bracelet, that is, perpendicular to the display component 12. However, considering that the user's hand is mostly facing the ground, in order to improve the antenna radiation performance of the smartwatch or smart bracelet, the radiation direction of the antenna 14 can be avoided from the direction facing the ground when the wearable device is worn.

[0037] In one embodiment, the outer shell 13 of the wearable device can be made of a combination of different materials. Since the display component 12 needs to display information, the outer shell 13 above the display component 12 can be made of glass to ensure that the content displayed on the display component 12 is not obstructed. Other parts of the outer shell 13 that can be worn into the device can be made of other non-metallic materials. When the wearable device is a smartwatch or smart bracelet, the outer shell 13 of the part that comes into contact with the user's body can be made of a flexible non-metallic material to improve the wearing comfort of the smartwatch or smart bracelet.

[0038] In one embodiment, the antenna 14 is connected to a feed point 15 located at the edge of the backplate 11 via an FPC. The antenna 14 and the feed point 15 are connected via the FPC, which has sufficient strength to ensure a reliable connection between the antenna 14 and the feed point 15. The length and orientation of the FPC are rationally designed according to the internal space layout of the wearable device to minimize the connection length between the antenna 14 and the backplate 11 and reduce signal transmission losses. Furthermore, an impedance matching network can be set on the FPC. The impedance matching circuit can include components such as capacitors and inductors, or structures equivalent to capacitors and inductors, to achieve impedance matching between the antenna 14 and the radio frequency unit on the backplate 11, thereby improving signal transmission efficiency. When the antenna 14 includes multiple radiating branches, a corresponding impedance matching network can be set on the FPC for each radiating branch. The FPC is securely connected to the feed point 15 on the backplate 11 by welding or pressing.

[0039] The antenna layout provided in this embodiment makes full use of the unused space inside the wearable device. Compared with the traditional antenna design in wearable devices, it can save 30%-50% of the antenna space, providing space for the integration of more functional components or the increase of battery capacity in the wearable device, which helps to realize the multi-functionality and long battery life of the wearable device.

[0040] Figure 2 A schematic diagram of another wearable device provided in an embodiment of this utility model is shown below. Figure 2 As shown, multiple feed points 15 are provided on the edge of the back panel 11, the display component 12 is disposed above the back panel 11, and the antenna 14 is disposed on the inner side of the wearable device's housing 13 perpendicular to the display component 12. Figure 2 The antenna 14 shown includes three radiating stubs, each operating in a different frequency band. Each radiating stub is connected to a different feed point 15, which includes a feed point connected to an RF unit on the backplane 11 and a grounded feed point.

[0041] Note that the above are merely optional embodiments and technical principles of this utility model. Those skilled in the art will understand that this utility model is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of this utility model. Therefore, although the utility model has been described in detail through the above embodiments, it is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of this utility model, and the scope of this utility model is determined by the scope of the appended claims.

Claims

1. A wearable device, characterized in that, include: Back panel, display components, housing, and antenna; The backplate is equipped with components that enable the functions required by the wearable device; The display component is disposed above the back panel and connected to related devices on the back panel; The antenna is connected to the radio frequency unit on the back plate via a feed point located at the edge of the back plate; The back panel, the display component, and the antenna are disposed within the housing, which is made of non-metallic material. The antenna is disposed between the back panel and the display component, and is arranged around the display component. The radiation direction of the antenna is perpendicular to the display component.

2. The wearable device according to claim 1, characterized in that, The antenna is located on the inner side of the housing in a region perpendicular to the display component.

3. The wearable device according to claim 1, characterized in that, The antenna consists of a metallic radiator and an insulating layer protecting the radiator.

4. The wearable device according to claim 1, characterized in that, The antenna includes at least one radiating stub, each of which operates at a different frequency band.

5. The wearable device according to claim 1, characterized in that, The antenna has a first gap with the display component, and the antenna has a second gap with the back panel.

6. The wearable device according to any one of claims 1 to 5, characterized in that, The wearable device is a smartwatch or a smart bracelet.

7. The wearable device according to claim 6, characterized in that, The antenna's radiation direction avoids the direction in which the wearable device faces the ground when it is worn.

8. The wearable device according to any one of claims 1 to 5, characterized in that, The outer casing above the display component is made of glass.

9. The wearable device according to any one of claims 1 to 5, characterized in that, The antenna is connected to a feed point located at the edge of the backplate via a flexible circuit board (FPC).

10. The wearable device according to claim 9, characterized in that, The FPC is equipped with an impedance matching circuit.

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