wearable devices
By embedding conductive components in the insulating shell of smart wearable devices, the problem of antenna performance degradation caused by metal spring shaft connections is solved, achieving better antenna performance and overall design consistency, increasing clearance area, and improving production efficiency.
Patent Information
- Application Number
- CN202111358522.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2021-05-28
- Filing Date
- 2021-11-16
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2041-11-16
AI Technical Summary
When the metal casing of existing smart wearable devices is used as an antenna, the connection between the metal wristband and the spring shaft causes a decrease in antenna performance and affects antenna function.
The outer shell is made of insulating material, and conductive components are embedded in the spring ear. The conductive components are isolated from the spring ear shaft, increasing the antenna area and forming a dual-band antenna structure. It is fed through the motherboard. Combined with the insulation design and the injection molding of the conductive components, interference from the spring ear shaft is avoided.
The antenna performance has been improved, ensuring the overall antenna performance of the device. At the same time, the seamless design and integrity of the overall casing have been taken into account, the clearance area has been increased, external interference has been reduced, and production efficiency has been improved.
Smart Images

Figure CN115411498B_ABST
Abstract
Description
[0001] This application claims priority to Chinese Patent Application No. 202121181485.0, filed with the State Intellectual Property Office of China on May 28, 2021, entitled “Wearable Product”, the entire contents of which are incorporated herein by reference. Technical Field
[0002] This application relates to the field of wearable device technology, and more particularly to a wearable device. Background Technology
[0003] With the maturity of mobile communication technology, wearable devices are becoming increasingly intelligent, integrating many functions. For example, smartwatches and smart bracelets integrate functions such as sports data collection, global positioning, and communication. In order to achieve the relevant information reception functions, wearable devices such as smartwatches and smart bracelets need to integrate antennas.
[0004] In existing technology, the metal casing of a smartwatch can serve as its antenna. And the metal casing is typically designed to be seamless.
[0005] Meanwhile, the metal case features four spring bars, with a metal spring bar shaft connecting each pair of spring bars that secures the strap end. A typical spring bar shaft consists of a metal tube, pins on both sides, a lever, and a spring mechanism, forming a single metal assembly. If two spring bars are externally connected by a spring bar shaft, antenna performance will be significantly reduced. The metal case often also connects to a wrist strap or other structure. Furthermore, for aesthetic and durability reasons, the wrist strap is frequently made of metal.
[0006] However, the metal casing of existing smart wearable devices, acting as an antenna, has a specific current flow path. When a metal wristband is connected to the metal casing via spring bars, it re-conducts the original metal casing through the wristband, thus affecting the original antenna circuitry and impacting the antenna function of the smartwatch, thereby reducing antenna performance. Summary of the Invention
[0007] This application provides a wearable device that solves the problem of poor antenna performance in existing wearable devices.
[0008] To achieve the above objectives, the embodiments of this application adopt the following technical solution: This application provides a wearable device, including a wearable device body and a shell covering the wearable body. The shell is made of insulating material and includes at least two spring ears. The two spring ears are parallel and spaced apart, and both extend in the same direction. The connection between the ends of the two spring ears is located outside the wearable device body. Conductive components are provided on the spring ears. The wearable device body includes a motherboard for feeding power to the conductive components, which serve as antennas. Therefore, by using insulating material for the spring ears and embedding the conductive components within them, contact between the conductive components and the spring ear shaft is avoided. This prevents the influence of spring ear shaft connection on the antenna signal, ensuring the antenna performance of the entire device, while also maintaining a seamless design and surface integrity of the overall casing.
[0009] In one alternative implementation, the housing includes an annular wall surrounding the wearable device body, the spring ear disposed on the annular wall, and a portion of the conductive component disposed within the annular wall. This increases the antenna area.
[0010] In one alternative implementation, the two spring ears on the same side are interconnected by a crossbeam, and a portion of the conductive component is embedded in the crossbeam. This extends the conductive component into the crossbeam, further increasing the antenna area.
[0011] In one alternative implementation, the conductive component includes a first portion disposed on the annular enclosure, a second portion disposed on the spring ear, and a third portion disposed on the crossbeam. The first, second, and third portions are connected, and the third portion has a slot. This configuration enables the antenna to operate on dual frequencies, further enhancing antenna performance.
[0012] In one alternative implementation, the slit is located near the spring ear. Of course, the slit can also be placed in other locations.
[0013] In one alternative implementation, the first part has a grounding point that is electrically connected to the motherboard. By setting the grounding point, the length of the motherboard can be effectively extended to improve antenna performance.
[0014] In one alternative implementation, a first protrusion is formed on the side of the first part opposite to the third part, and a second protrusion is formed on the side of the third part opposite to the first part, with the first and second protrusions electrically isolated from each other. Here, the first and second protrusions can serve as reinforcing ribs of the antenna, improving its strength.
[0015] In one alternative implementation, the conductive component is embedded in the spring bar. Thus, the conductive component is integrally formed with the plastic casing via insert injection molding or other similar molding methods, embedded and hidden inside the plastic casing, preventing the antenna from contacting the outside, reducing interference from the external environment, and improving antenna performance.
[0016] In one alternative implementation, the conductive component is formed on the surface of the spring ear. This simplifies operation and improves production efficiency.
[0017] In one alternative implementation, the conductive component is electrically connected to the motherboard via an electrical connector. Thus, the motherboard can supply power to the conductive component via the electrical connector, allowing the conductive component to radiate electromagnetic waves as an antenna.
[0018] In one alternative implementation, the motherboard feeds power to the conductive component via coupling. This allows the motherboard to couple power to the conductive component, enabling the conductive component to radiate electromagnetic waves as an antenna.
[0019] In one alternative implementation, the electrical connector is one of the following: a screw, a metal spring, conductive plastic, or a flexible printed circuit board (FPC). This provides a wider range of electrical connector options, offers greater structural flexibility, and makes it suitable for various working scenarios.
[0020] In one optional implementation, the housing includes a front shell and a rear shell, with the conductive component disposed in the front shell. The front shell also includes a first connector, and the rear shell includes a second connector, the first connector and the second connector being detachably connected. Thus, the front shell and the rear shell can be detachably connected together.
[0021] In one alternative implementation, the first connector is embedded in the front housing. Therefore, the insert manufacturing process is mature and easy to produce.
[0022] In one alternative implementation, the first connector and the conductive component are integrally formed. This promotes a higher degree of integration in the overall wearable device.
[0023] In one optional implementation, a sealing gasket is provided between the rear shell and the second connector. This improves the sealing between the front and rear shells, enhances the waterproofing capability of the insert injection molding interface, and thus improves the overall sealing performance of the wearable device.
[0024] In one alternative implementation, the first connector is a screw and the second connector is a nut. This allows the first and second connectors to be detachably connected, facilitating the disassembly and assembly of the wearable device.
[0025] In one alternative implementation, the conductive component comprises multiple modules, each operating at a different frequency band. Thus, each module can independently function as an antenna module for a specific signal frequency band, providing the watch with better antenna performance compared to traditional antenna structures.
[0026] In one optional implementation, the wearable device further includes: spring bar shafts, each of the two spring bars having a spring bar hole, the two spring bar holes being coaxially arranged, and the two spring bar shafts extending into the two spring bar holes and rotatably connected to the spring bar holes, with the spring bar shafts spaced apart from the conductive component. This avoids contact between the spring bar shafts and the conductive component, improving antenna performance.
[0027] In one alternative implementation, the wearable device further includes a strap that is rotatably connected to the spring shaft. This facilitates the user's wearing of the wearable device. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of a smartwatch;
[0029] Figure 2 This is a schematic diagram of the structure of another type of smartwatch;
[0030] Figure 3 A schematic diagram of a structure for mounting spring shafts on the body of a smartwatch.
[0031] Figure 4 This is a schematic diagram of the structure of a wearable device provided in an embodiment of this application;
[0032] Figure 5 This application provides a schematic diagram of a structure for setting an antenna module in a wearable device.
[0033] Figure 6 This is a schematic diagram of the disassembled structure of the outer shell of the wearable device provided in the embodiments of this application;
[0034] Figure 7 This is a schematic diagram illustrating the connection between an antenna module and a motherboard for a wearable device, provided in an embodiment of this application.
[0035] Figure 8 for Figure 7 A cross-sectional view along the AA direction;
[0036] Figure 9 This is a schematic diagram illustrating the connection between an antenna module and a motherboard for another wearable device provided in an embodiment of this application.
[0037] Figure 10 for Figure 9 A cross-sectional view along the AA direction;
[0038] Figure 11 This is a schematic diagram of the disassembly structure of a wearable device casing provided in an embodiment of this application;
[0039] Figure 12 for Figure 11 Schematic diagram of the inner and outer shell structure;
[0040] Figure 13 This is a schematic diagram of another wearable device housing disassembly structure provided in an embodiment of this application;
[0041] Figure 14 for Figure 13 Schematic diagram of the inner and outer shell structure;
[0042] Figure 15 This is a schematic diagram of another antenna module provided in an embodiment of this application;
[0043] Figure 16 This is a schematic diagram of another structure for setting an antenna module in a wearable device, provided by an embodiment of this application;
[0044] Figure 17a This is a schematic diagram of another antenna module provided in an embodiment of this application;
[0045] Figure 17b This is a schematic diagram of another antenna module provided in an embodiment of this application;
[0046] Figure 17c This is a schematic diagram of another antenna module provided in an embodiment of this application;
[0047] Figure 17d This is a schematic diagram of another antenna module provided in an embodiment of this application;
[0048] Figure 18 This is a schematic diagram of another structure for setting an antenna module in a wearable device, provided by an embodiment of this application;
[0049] Figure 19 This is a schematic diagram of another structure for setting an antenna module in a wearable device, provided by an embodiment of this application;
[0050] Figure 20 This is a schematic diagram of the structure of an antenna module provided in an embodiment of this application;
[0051] Figure 21 This is a schematic diagram of another antenna module provided in an embodiment of this application;
[0052] Figure 22 This is a schematic diagram of another antenna module provided in an embodiment of this application;
[0053] Figure 23This is a schematic diagram of another antenna module provided in an embodiment of this application;
[0054] Figure 24 This is a schematic diagram of another antenna module provided in an embodiment of this application;
[0055] Figure 25 This is a schematic diagram of another antenna module provided in an embodiment of this application;
[0056] Figure 26 This is a schematic diagram of another antenna module provided in an embodiment of this application;
[0057] Figure 27 This is a schematic diagram of another antenna module provided in an embodiment of this application. Detailed Implementation
[0058] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.
[0059] In the following description, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0060] Furthermore, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.
[0061] The following explains the terms that may appear in the embodiments of this application:
[0062] Electrical connection: This can be understood as the physical contact and conduction of components, or as the connection between different components in a circuit structure through physical lines that can transmit electrical signals, such as PCB copper foil or wires. The term "connection" refers to both mechanical and physical structural connections.
[0063] Coupling: refers to the phenomenon where there is a close coordination and mutual influence between the inputs and outputs of two or more circuit elements or electrical networks, and energy is transferred from one side to the other through interaction.
[0064] Connection: The process of making two or more components conduct or connect through the above-mentioned "electrical connection" or "coupling connection" to transmit signals / energy can be called connection.
[0065] Spring shaft: A connecting bar that connects the watch strap to the watch face.
[0066] Spring bars: The protruding parts of the watch case used to connect to the watch strap.
[0067] Global navigation satellite system (GNSS): GNSS can include global positioning system (GPS), global navigation satellite system (GLONASS), BeiDou navigation satellite system (BDS), quasi-zenith satellite system (QZSS), and / or satellite based augmentation systems (SBAS).
[0068] Figure 1 This is a schematic diagram of the structure of a smartwatch. Figure 2 This is a schematic diagram of the structure of another type of smartwatch. (Refer to...) Figure 1 and Figure 2 A smartwatch of the prior art includes a watch body 01 and a watch strap 02 connected to the watch body 01. Figure 3 This is a schematic diagram of the structure for mounting spring shafts on the body of a smartwatch. (Refer to...) Figure 3 The watch body 01 includes a metal case 011 and four spring bars 012 disposed on the outside of the watch body 01. Two spring bars 012 are grouped together and positioned opposite each other, and each spring bar is fitted with a spring bar shaft 013. The spring bar shaft 013 connects the watch body 01 and the watch strap 02. To enable the transmission of multiple signals, each spring bar 012 is distributed on a branch circuit of a different frequency band of the antenna. For example, see [reference]. Figure 3 These can be the corresponding transmitted signals, such as Bluetooth (BT) signals, WIFI (Wireless Fidelity) signals, 4G (4th Generation mobile communication technology) signals, and GPS (Global Positioning System) signals.
[0069] However, for aesthetic and practical reasons, the watch strap 02 in the prior art is often made of metal. When the watch strap 02 made of metal is connected to the watch body 01, it can easily conduct the circuit of the two spring bars 012, which will affect the antenna function of the smartwatch and the antenna performance will be significantly reduced.
[0070] Another approach in the existing technology is to use plastic materials for the watch case, and to directly mold metal antenna patterns onto the plastic case using laser-direct-structuring (LDS) technology.
[0071] The area between the antenna and the smartwatch screen and internal metal components is called the clearance zone. Generally, good antenna performance requires a certain clearance zone. Both of the above solutions utilize the watch casing as the antenna. In the overall device stacking, the antenna is close to the screen and internal metal components, resulting in a small clearance zone and limiting antenna performance.
[0072] Reference Figure 4 This application provides a wearable device, which includes a wearable device body 101 and a housing 100 surrounding the wearable device body 101. The housing 100 is made of an insulating material. Specifically, the housing 100 may be made of plastic.
[0073] like Figure 5 As shown, a conductive component 105 is embedded in the outer casing 100.
[0074] This application embodiment does not limit the assembly method of the conductive component 105. The conductive component 05 can be integrally formed with the outer shell 100 by insert injection molding or other similar molding methods, and embedded and hidden inside the outer shell.
[0075] In addition, such as Figure 6 As shown, the wearable device body 101 includes a motherboard 106, wherein the motherboard 106 is used to feed power to the conductive component 105, and the conductive component 105 serves as an antenna.
[0076] This application does not limit the structure of the conductive component 105. In some embodiments, such as... Figure 5 , Figure 6 As shown, the conductive component 105 is designed with a U-shaped structure, including: an insert portion 1051 embedded in the housing 100, and a connecting portion 1052 for communicating with the motherboard 106. After the insert portion 1051 extends into the housing 100, the metal portion of the connecting portion 1052 is exposed. The connecting portion 1052 can be directly attached to the motherboard 106 or connected through a metal spring.
[0077] Among them, such as Figure 4, Figure 5 As shown, the outer shell 100 includes: spring ears 103.
[0078] The wearable device body 101 is provided with at least two spring ears 103, which are parallel and spaced apart, and both extend in the same direction. The connection between the ends of the two spring ears 103 is located outside the wearable body 200. A portion of the conductive component 105 is embedded in the spring ears 103.
[0079] The wristband 200 of the wearable device extends between the two spring ears 103, and the wristband 200 of the wearable device is hinged to the two spring ears 103 of the wearable device body 101 through the two spring ear shafts 1031.
[0080] It should be noted that, generally, in order for the wearable device wristband 200 to be connected to the wearable device 200 and worn around the corresponding part of the human body (e.g., the wrist), the wearable device wristband 200 needs to have at least two connections to the wearable device body 101. That is, the wearable device body 101 has at least four spring ears 103 in pairs, and optionally, the two pairs of spring ears 103 are located on the two sides of the wearable device body 101.
[0081] like Figure 6 As shown, the main body of the wearable device also includes: spring ear shafts 1031, each of the two spring ear shafts 103 has a spring ear 103 hole, the two spring ear 103 holes are coaxially arranged, and the two spring ear shafts 1031 extend into the two spring ear 103 holes and are rotatably connected to the spring ear 103 holes.
[0082] In addition, such as Figure 8 As shown, the conductive component 105 does not come into contact with the metal of the spring shaft 1031, thus avoiding the influence of the spring shaft 1031 connection on the antenna signal.
[0083] It should be noted that, in order to prevent the two opposing spring ears 103 from being connected by the spring ear shaft 1031, an insulating structure can also be provided on the two spring ears 103. For example, a first possible implementation is as follows: each of the two spring ears 103 has a spring ear seat made of insulating material embedded in it. The wearable device wristband 200 has opposing first and second sidewalls. The first sidewall is close to one of the two spring ears 103, and the second sidewall is close to the other of the two spring ears 103. One of the two spring ear shafts 1031 extends from the first sidewall and connects to the spring ear seat 2011 on the spring ear 103 with the first sidewall close to it. The other of the two spring ear shafts 1031 extends from the second sidewall and connects to the spring ear seat 2011 on the spring ear 103 with the second sidewall close to it. The spring ear seat 2011 made of insulating material can insulate and isolate the spring ear shaft 1031 from the wearable device body 101, further avoiding any impact on the antenna performance of the wearable device.
[0084] The second possible implementation: Each of the two spring ears 103 has a spring ear hole, the two spring ear holes are coaxially arranged, and the inner wall surface has an insulating layer. The two spring ear shafts 1031 of the wearable device wristband 200 extend into the two spring ear holes respectively. The insulating layer insulates and isolates the spring ear shafts 1031 and the spring ears 103.
[0085] The wearable device involved in this application also includes a strap, which is rotatably connected to the spring shaft 1031.
[0086] Therefore, by inserting conductive components into the insulating shell as antennas, and with the conductive components and the motherboard being designed to be interconnected, the antenna performance of the whole device is guaranteed, while also taking into account the seamless design of the overall casing and the integrity of the surface.
[0087] Meanwhile, by placing the conductive components at the spring bar location, the antenna is further away from the screen and internal metal components in the overall stack, resulting in a larger clearance area and a more than 3dB improvement in antenna performance under free space. Compared with existing technologies, this solution extends the antenna into the housing and has a larger antenna area while avoiding interference from the spring bar shaft, ensuring the overall antenna performance of the device. It also maintains a seamless design for the entire casing, ensuring surface integrity. Furthermore, it fully utilizes the open space in the spring bar area, away from the screen and internal metal stack, providing a larger clearance area and better antenna performance.
[0088] In this application embodiment, the structure of the outer casing 100 is not limited. In some embodiments, such as... Figure 4 , Figure 6 As shown, the outer casing 100 includes an annular wall 102 surrounding the wearable device body 101, and a portion of the conductive component 105 is embedded in the annular wall 102.
[0089] Therefore, by extending the conductive component into the annular enclosure 102, the area of the annular enclosure 102 can be fully utilized, further increasing the size of the antenna radiator and improving the antenna performance.
[0090] In some embodiments, such as Figure 4 , Figure 5 As shown, the housing 100 also includes a crossbeam 104, a group of spring ears 103 on the same side are interconnected through the crossbeam 104, and a portion of the conductive component 105 is embedded in the crossbeam 104.
[0091] Therefore, by extending the conductive components into the crossbeam, the crossbeam area can be fully utilized, further increasing the size of the antenna radiator and improving antenna performance.
[0092] This application does not limit the molding process of the conductive component. In some embodiments, the conductive component can be injection molded into the housing 100.
[0093] Therefore, the conductive component is integrally molded with the plastic casing through insert injection molding or other similar molding methods, embedded and hidden inside the plastic casing, avoiding contact between the antenna and the outside, reducing interference from the external environment on the antenna, and improving the antenna performance.
[0094] In other embodiments, the conductive component can be formed on the surface of the housing 100 using a laser direct structuring (LDS) process. The LDS process allows for the direct deposition of a metal antenna pattern onto the molded housing 100 using laser engraving technology. Specifically, a computer can control the movement of a laser according to the trajectory of the conductive pattern, projecting the laser onto the molded three-dimensional housing 100 to activate the circuit pattern within a few seconds.
[0095] Therefore, the LDS molding process is simpler to operate and helps to improve production efficiency.
[0096] This application embodiment does not limit the connection method between the conductive component 105 and the motherboard 106. The motherboard 106 can be connected to the conductive component 105.
[0097] In other embodiments, the motherboard 106 and the conductive component 105 are not directly connected, but are coupled, and the motherboard 106 supplies power to the conductive component 105 through coupling.
[0098] In other embodiments, such as Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, the conductive component 105 is electrically connected to the mainboard 106 via an electrical connector. The electromagnetic wave signal is transmitted to one side of the mainboard 106 through the antenna, which is called the antenna feed point. In this embodiment, the part in contact with the mainboard 106 protrudes from the inside of the plastic watch case (the area where the internal components of the watch body are placed, which is not visible), and is connected to the mainboard 106 via the electrical connector to realize the exchange of information between the electromagnetic wave signal and the watch processor. This connection point is also called the antenna feed point.
[0099] This application does not limit the specific structure of the electrical connector in its embodiments. In some embodiments, such as Figure 7 , Figure 8 As shown, the electrical connector can be a screw 107. Both the conductive component 105 and the main board 106 are provided with connection holes adapted to the screw 107.
[0100] The screw 107 and the threaded holes on the conductive component 105 and the main board 106 are detachably connected. When the screw 107 is tightened, the conductive component 105 and the main board 106 are connected through the screw 107, and the main board 106 can supply power to the conductive component 105 through the screw 107. When the screw 107 is loosened, the conductive component 105 and the main board 106 can be detached.
[0101] Therefore, by providing screws 107, it is easy to disassemble and install conductive components 105 and main board 106.
[0102] In addition, such as Figure 8 As shown, in order to ensure that the electrical connector 107 and the motherboard 106 make full contact, a first metal gasket 1081 is provided between the motherboard 106 and the conductive component 105.
[0103] Therefore, the motherboard 106 and the conductive component 105 can be electrically connected without drilling holes in the motherboard 106 and the conductive component 105.
[0104] In other embodiments, the electrical connection may also be as follows: Figure 9 , Figure 10 The metal spring 109 is shown. One end of the metal spring 109 is fixed to the motherboard 106, and the other end abuts against the surface of the conductive component 105, so that the motherboard 106 can supply power to the conductive component 105 through the metal spring 109.
[0105] In addition, the electrical connection can also be conductive plastic or flexible motherboard FPC (not shown in the figure).
[0106] Among them, such as Figure 11 , Figure 12 , Figure 13 , Figure 14 As shown, the outer shell 100 can be divided into a front shell 1001 and a rear shell 1002, and the conductive component 105 is embedded in the front shell 1001 for example. A second connector 1072 can be provided in the front shell 1001, and the second connector 1072 in the rear shell 1002 and the front shell 1001 can be detachably connected together by a first connector 1071.
[0107] In some embodiments, such as Figure 11 , Figure 12 As shown, the first connector 1071 is a bolt, the second connector 1072 is a nut, the second connector 1072 is embedded in the front shell 1001, and the second connector 1072 passes through the rear shell 1002 and is detachably connected to the first connector 1071.
[0108] In other embodiments, such as Figure 13 , Figure 14As shown, the first connector 1071 is, for example, a bolt, and the second connector 1072 is, for example, a nut. The second connector 1072 and the conductive component 105 are integrally formed. The first connector 1071 passes through the main board 106 and is detachably connected to the second connector 1072.
[0109] Furthermore, such as Figure 13 , Figure 14 As shown, considering the waterproof capability of the interface of the insert injection molding, an irregularly shaped sealing ring is designed on the top of the screw hole to ensure the high level of waterproof capability of the whole machine. A second metal gasket 1082 is provided between the electrical connector 107 and the rear shell 1002.
[0110] This application does not limit the arrangement of conductive components in its embodiments. In some embodiments, such as... Figure 5 As shown, the conductive component 105 has a U-shaped structure. Part of the conductive component 105 is embedded in the annular wall 102, part is embedded in the spring ear 103, and part is embedded in the crossbeam 104.
[0111] in addition, Figure 15 The diagram shows the structure of another conductive component 105, and... Figure 16 It also shows that Figure 15 A schematic diagram showing the structure in which the conductive component 105 is disposed within the housing 100. (Together) Figure 15 and Figure 16 Since the outer shell 100 includes spring ears 103, an annular wall 102 surrounding the wearable device body 101, and a crossbeam 104 connecting a group of spring ears 103 on the same side, the insert portion 1051 of the conductive component 105 may include a first portion 1051a embedded in the annular wall 102, a second portion 1051b embedded in the spring ears 103, and a third portion 1051c embedded in the crossbeam 104. The connecting portion 1052 is connected to the first portion 1051a. Here, the first portion 1051a, the second portion 1051b, the third portion 1051c, and the connecting portion 1052 may be integrally molded parts.
[0112] Figure 15 The conductive component 105 shown and the above-mentioned Figure 5 The difference in the conductive component 105 shown is that the third part 1051c embedded in the crossbeam 104 has a slot 1051d. This type of conductive component 105 can transmit and receive signals at antenna operating frequencies of approximately 1.575 GHz (which can be referred to as a GNSS L1 antenna), 1.176 GHz (which can be referred to as a GNSS L5 antenna), and 2.4 GHz (which can be referred to as a BT / WiFi antenna). Figure 15As shown, it can be schematically assumed that the dashed box Q1 section enables signal transmission and reception for the GNSS L1 antenna, while the GNSS L5 antenna and the BT / WiFi antenna share the dashed box Q2 section. In other words, Figure 15 and Figure 16 The conductive component 105 shown can achieve dual-frequency transmission, which can significantly improve the positioning accuracy of the antenna. For example, it can achieve accurate positioning in areas with weak signals, such as high-rise communities and tree-lined roads.
[0113] Figure 15 and Figure 16 The slit 1051d of the conductive component 105 shown is formed on the third portion 1051c and is located near the spring ear 103. In other alternative implementations, such as... Figure 17a and Figure 17b As shown, the slit 1051d of the conductive component 105 can also be formed on the first portion 1051a, or, as... Figure 17c As shown, the slit 1051d of the conductive component 105 can also be formed on the third part 1051c, or, as... Figure 17d As shown, both the first part 1051a and the third part 1051c have a slit 1051d.
[0114] The quantity of 1051d slot openings can be... Figure 15 and Figure 17a ,as well as Figure 17c The one shown can be one, or it can be Figure 17b and Figure 17d The example shown has two. Additionally, in some implementations, the slit 1051d can also be three, or more, or... Figure 5 The diagram shown does not include a slot 1051d. This application does not impose specific limitations on the location and number of slots 1051d; in specific implementations, these can be determined based on the antenna's operating frequency and bandwidth requirements. Furthermore, the width of the slot 1051d (e.g., ...) is not specified in this application. Figure 17d The d dimension shown is not specifically limited. Similarly, the specific width dimension can be determined according to the requirements of the antenna operating frequency and bandwidth.
[0115] Also, such as Figure 15 As shown, in addition to the power supply point 204 electrically connected to the motherboard 106, the conductive component 105 provided in this application may also have a grounding point, for example, in Figure 15 and Figure 16The conductive component 105 shown also includes three grounding points: a first grounding point 201, a second grounding point 202, and a third grounding point 203, all of which are electrically connected to the motherboard 106. Alternatively, only one grounding point, two grounding points, more grounding points, or no grounding points may be provided.
[0116] In some alternative implementations, for example, when the wearable device has a limited size and the motherboard 106 is small, but a longer grounding wire is needed to improve antenna performance, a grounding point can be set on the conductive component 105 for antenna resonant frequency tuning, thereby improving antenna performance. Alternatively, by setting a grounding point on the conductive component 105, the length of the motherboard 106 can be effectively extended to improve antenna performance.
[0117] Figure 15 The three grounding points are all formed on the first part 1051a of the conductive component 105. In other implementations, they can also be set at other locations on the conductive component 105, for example, on the third part 1051c. That is, the number and location of the grounding points are not specifically limited in this application.
[0118] Continue as Figure 15 As shown, a first protrusion 301 is formed on the side of the first part 1051a opposite to the third part 1051c, and a second protrusion 302 is formed on the side of the third part 1051c opposite to the first part 1051a. In practice, since the dimensions of both the first part 1051a and the third part 1051c are relatively small, the overall strength of the antenna is low, making it prone to deformation. To ensure the antenna's radio frequency performance, the first protrusion 301 and the second protrusion 302 can serve as reinforcing ribs to improve the overall strength of the antenna.
[0119] In other embodiments, such as Figure 18 , Figure 19 As shown, the spring ears 103 at both ends are no longer as... Figure 5 As shown, the metal antenna modules are interconnected via the crossbeam 104. The metal antenna modules can have different forms. The spring ears 103 on one side can be exposed and interconnected, or they can be not interconnected.
[0120] Among them, such as Figure 18 As shown, the conductive component 105 insert is only injection molded onto the bezel portion of the watch case, and part of the structure of the conductive component 105 is hidden within the bezel portion of the watch case, while the other part is exposed.
[0121] See Figure 18A portion of the conductive component 105 is embedded in the annular enclosure 102, another portion is embedded in the spring ears 103, and the remaining portion is located between the two spring ears 103 on one side, exposed from the outer casing. Thus, by exposing part of the conductive component 105 from the casing, the space of the spring ears can be fully utilized, improving antenna performance.
[0122] In other embodiments, such as Figure 19 As shown, the conductive component 105 insert is only injection molded onto the bezel portion of the watch case.
[0123] See Figure 19 A portion of the conductive component 105 is embedded in the annular wall 102, and another portion is embedded in the spring bar 103. The conductive component 105 is disconnected between the two spring bars 103 on one side. The conductive component 105 is still completely hidden in the bezel of the watch case, so as to have a more integrated and complete appearance.
[0124] It should be noted that the part where the spring bar 103 is connected to the spring bar shaft 1031 is kept insulated to prevent the spring bar shaft 1031 from being connected to the conductive part 105, thereby improving the antenna performance.
[0125] In wearable devices, since two sets of spring ears 103 are included, with both spring ears 103 of each set located on the same side, in alternative implementations, conductive components 105 can be provided at the position of each set of spring ears 103, or conductive components 105 can be provided only at the position of one set of spring ears 103, while the other set of spring ears 103 may not have conductive components. Various shapes of conductive components 105 are shown below, with detailed descriptions provided in the following text.
[0126] The shape of the conductive component 105 is not limited in this application embodiment. In some embodiments, the conductive component may adopt the following form: Figure 20 The structure shown in module a is U-shaped and includes an insert portion 1051 embedded in the housing and a connection portion 1052 for connecting to the motherboard.
[0127] In other embodiments, the conductive component 105 may also employ, for example... Figure 20 The structure shown in module b only includes a connection part 1052 for connecting to the motherboard.
[0128] In other embodiments, the conductive component can be divided into multiple modules, and the conductive component can also adopt, for example... Figure 21 The structures shown in modules a and b can be formed by breaking a single conductive component at the middle. Modules a and b can function as different antenna modules, operating in different frequency bands. Multiple modules correspond to GPS, Bluetooth, and Wi-Fi antennas, respectively.
[0129] It should be noted that a complete antenna module includes at least one connection part 1052, or at least one feed point. Those skilled in the art can flexibly choose the shape of each conductive component as needed. A conductive component can be a single unit, or it can consist only of the connection part 1052, or a conductive component can be divided into multiple modules; all of these fall within the scope of this application.
[0130] Specifically, such as Figure 20 As shown, a smartwatch includes two metal modules. One metal module, 'a', has a complete U-shaped structure, including an insert portion 1051 embedded in the casing and a connection portion 1052 for connecting to the motherboard. The other metal module, 'b', only includes the connection portion 1052 for connecting to the motherboard. Modules 'a' and 'b' can function as different antenna modules, operating in different frequency bands.
[0131] like Figure 21 As shown, a smartwatch includes two metal modules, Module a and Module b, both employing a complete U-shaped structure. These include an insert portion embedded in the casing and a connection portion for connecting to the motherboard. Module a and Module b can function as different antenna modules, operating in different frequency bands.
[0132] like Figure 22 As shown, a smartwatch includes three metal modules. Modules a and b are formed by a conductive component disconnecting them, while module c adopts a complete U-shaped structure, including an insert portion 1051 embedded in the casing and a connection portion 1052 for connecting to the motherboard. Modules a, b, and c can function as different antenna modules and can operate in different frequency bands.
[0133] Figure 23 As shown, a smartwatch includes four metal modules. Modules a and b are formed by a conductive component that is broken in the middle, and modules c and d are formed by another conductive component that is broken in the middle. Modules a, b and c can function as different antenna modules and can operate in different frequency bands.
[0134] For example, modules a, b, c, and d can be used as GPS, Bluetooth, WIFI, and communication antennas, respectively. This application does not limit the correspondence between the modules and the antenna modules. Those skilled in the art can make settings as needed, and these all fall within the protection scope of this application.
[0135] Thus, the conductive component 105 has one or more breakpoints, thereby being divided into multiple modules. Each module can independently serve as an antenna for a certain signal frequency band, bringing better antenna performance to the watch compared to traditional antenna structures.
[0136] In addition to the above, the embodiments of this application also provide the following possible implementation methods, as detailed below:
[0137] In some embodiments, such as Figure 24 Module a, which is positioned at a set of spring ears 103, can form a slit 1051d on the insert portion 1051, and module b and the above-mentioned Figure 20 Module b is the same, except that it includes a connection part 1052 that connects to the motherboard. In some other embodiments, such as Figure 25 The module a, which is positioned at a set of spring ears 103, can form a slit 1051d on the insert portion 1051, except that the position of the slit 1051d in this embodiment is the same as described above. Figure 24 The position of the slit 1051d in module a is different from that in module b, and the position of the slit 1051d in module b is also different from that in module b. Figure 21 The module b has the same structure.
[0138] In some other embodiments, such as Figure 26 Module a, which is positioned at a set of spring ears 103, can form a slit 1051d on the insert portion 1051, and the slit 1051d has at least two slits, while module b and the above-mentioned Figure 25 The structure of module a is the same as that of module a.
[0139] In some other embodiments, such as Figure 27 The insert portion 1051 of module a, which is located at a set of spring ears 103, does not include the portion located on the annular enclosure 102, while module b and the aforementioned Figure 26 The module b has the same structure.
[0140] It should be noted that the above are only some of the shapes of the conductive parts 105 given in this application. Other shapes are also within the protection scope of this application, and will not be listed here.
[0141] Regarding the above Figure 20 and Figure 24 The conductive component 105 shown can be used as GNSS L1 and GNSS L5, as well as BT / WiFi antennas, and module b can be used as a connector for connecting the antenna and the motherboard.
[0142] In addition, for Figure 21 , Figure 22 , Figure 23 , Figure 25 , Figure 26 and Figure 27The conductive components shown have the following configurations: the conductive component on the left serves as an antenna, while the conductive component on the right can be designed as an extension ground of the motherboard, thus further improving the performance of the antenna on the left. Optionally, the conductive component on the right can be directly electrically connected to the motherboard, or it can be electrically connected to the motherboard through an inductor and / or capacitor. The position and width of the slot on the right conductive component can be adjusted according to antenna requirements.
[0143] Furthermore, in some feasible methods, for Figure 21 , Figure 22 , Figure 23 , Figure 25 , Figure 26 and Figure 27 The conductive components shown, both the conductive component on the left and the conductive component on the right, can be designed as antennas, and can be designed as antenna combinations of different frequency bands. For example, the conductive component on the left can be designed as a GNSS L1, GNSS L5 and BT / WiFi antenna, and the conductive component on the right can be designed as a cellular antenna or an antenna of other frequency bands, etc.
[0144] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A wearable device, characterized in that, include: The wearable device body and the outer shell covering the wearable device body, the outer shell being made of insulating material, the outer shell including: at least two spring ears, the two spring ears being parallel and spaced apart, and both extending in the same direction, the line connecting the ends of the two spring ears being located outside the wearable device body, the spring ears being provided with conductive components, the wearable device body including: a main board, the main board being used to feed power to the conductive components, the conductive components serving as antennas; The wearable device includes an annular enclosure surrounding the main body of the wearable device, and the two spring ears on the same side of the main body of the wearable device are connected to each other through a crossbeam; The conductive component includes a first part disposed on the annular wall, a second part disposed on the spring ear, and a third part disposed on the crossbeam. The first part, the second part, and the third part are connected to each other, and the third part has a slit.
2. The wearable device according to claim 1, characterized in that, The slit is located close to the raw ear.
3. The wearable device according to claim 1 or 2, characterized in that, The first part has a grounding point that is electrically connected to the motherboard.
4. The wearable device according to claim 1 or 2, characterized in that, A first protrusion is formed on the side of the first part opposite to the third part, and a second protrusion is formed on the side of the third part opposite to the first part, and the first protrusion and the second protrusion are electrically isolated from each other.
5. The wearable device according to claim 1 or 2, characterized in that, The conductive component is embedded in the spring ear.
6. The wearable device according to claim 1 or 2, characterized in that, The conductive component is formed on the surface of the spring ear.
7. The wearable device according to claim 1 or 2, characterized in that, The motherboard is coupled to the conductive component.
8. The wearable device according to claim 1 or 2, characterized in that, The conductive component is electrically connected to the motherboard via an electrical connector.
9. The wearable device according to claim 8, characterized in that, The electrical connector is one of the following: screw, metal spring, conductive plastic, or flexible printed circuit board (FPC).
10. The wearable device according to claim 1 or 2, characterized in that, The housing includes a front housing and a rear housing, with the conductive component located in the front housing.
11. The wearable device according to claim 10, characterized in that, The front shell is provided with a first connector, and the rear shell is provided with a second connector, wherein the first connector and the second connector are detachably connected.
12. The wearable device according to claim 11, characterized in that, The first connector is embedded in the front housing.
13. The wearable device according to claim 11, characterized in that, The first connector and the conductive component are integrally formed.
14. The wearable device according to claim 11, characterized in that, A sealing gasket is provided between the rear shell and the second connector.
15. The wearable device according to claim 11, characterized in that, The first connector is a screw and the second connector is a nut, or the first connector is a nut and the second connector is a screw.
16. The wearable device according to claim 1 or 2, characterized in that, The conductive component includes multiple modules, and different modules correspond to different operating frequency bands.
17. The wearable device according to claim 1 or 2, characterized in that, Also includes: The spring bar has a spring bar hole on each of the two spring bars, the two spring bar holes are coaxially arranged, and the two spring bar shafts extend into the two spring bar holes and are rotatably connected to the spring bar holes. The spring bar shafts are spaced apart from the conductive components.
18. The wearable device according to claim 1 or 2, characterized in that, It also includes a belt body, which is rotatably connected to the spring shaft.
Citation Information
Patent Citations
Electronic device
CN204793174U
Wrist-mounted device and main body thereof
CN209948031U