Metal frame watch three-frequency antenna
By using the metal frame as the main antenna radiator and employing a multi-point grounding method, the signal weakness caused by the all-metal watch case was solved, achieving signal stability and cost reduction, and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN BOGESI COMM TECH CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-04-28
AI Technical Summary
A full metal watch case negatively impacts antenna performance, resulting in poor signal strength and affecting the user experience.
The metal frame serves as the main body of the antenna radiation, and multiple frequency bands are shared through multi-point grounding. Electromagnetic signals are transmitted by contacting the motherboard with the spring contacts.
While maintaining the integrity of the appearance, it improved signal stability, reduced product costs, and enhanced the user experience.
Smart Images

Figure CN224177573U_ABST
Abstract
Description
[Technical Field]
[0001] This utility model relates to the field of antenna technology, and in particular to a tri-band antenna for metal-framed watches. [Background Technology]
[0002] Users have increasingly higher requirements for the appearance and texture of sports wearable watches. The watch bezels are mostly made of all-metal material, and they must maintain the integrity of the metal while also meeting the user's normal use of the watch's positioning and data transmission functions. However, the all-metal casing can greatly affect the performance of the antenna, which is not conducive to the normal functioning of the antenna and affects the user's experience. [Utility Model Content]
[0003] To overcome the above problems, this utility model proposes a metal-framed watch tri-band antenna that can effectively solve the above problems.
[0004] The present invention provides a technical solution to solve the above-mentioned technical problems by providing a tri-band antenna for a metal-framed watch, comprising a top cover, a metal frame, a main board, and a bottom cover. The top cover is connected to the upper side of the metal frame, and the bottom cover is connected to the lower side of the metal frame. The top cover, the metal frame, and the bottom cover together form an accommodating space, and the main board is disposed within the accommodating space. The main board is provided with multiple spring contacts, each of which is connected to a grounding point of the main board. The multiple spring contacts are in contact with the metal frame, and the metal frame is in contact with multiple grounding points of the main board through the multiple spring contacts. The metal frame serves as the main body of the antenna radiation to receive external electromagnetic signals.
[0005] Preferably, the inner side of the metal frame is integrally formed with multiple spring contact metal plates, the positions of the multiple spring contact metal plates are respectively corresponding to the positions of multiple springs, and each spring touches one spring contact metal plate.
[0006] Preferably, the motherboard is provided with a communication module, which is connected to a spring contact, and the electromagnetic signals received by the metal frame are transmitted to the communication module through the spring contact.
[0007] Preferably, the spring is made of a metal material.
[0008] Preferably, a positioning slot is provided on the inner side of the metal frame, and a positioning block that matches the positioning slot is provided on the bottom cover, and the positioning block is engaged with the positioning slot.
[0009] Preferably, the side of the bottom cover is provided with a plurality of connecting ears, which are fixedly connected to the metal frame by screws.
[0010] Preferably, a plurality of connecting posts are provided on the inner side of the bottom cover, and the connecting posts are used to fix the motherboard.
[0011] Preferably, the top cover is fixed to the metal frame by snap-fit or adhesive.
[0012] Compared with existing technologies, the metal frame watch tri-band antenna of this utility model uses the metal frame of the watch as the main antenna radiating body and grounds it at multiple points on the metal frame to achieve multiple frequency bands sharing a single metal frame as an antenna. This effectively solves the problem of poor wireless signal caused by the all-metal shell structure of electronic products and the need to maintain the integrity of the appearance. While ensuring product quality and stable wireless communication, it effectively reduces product costs and improves the user experience. [Attached Image Description]
[0013] Figure 1 This is an exploded view of the metal frame watch tri-band antenna of this utility model.
Detailed Implementation Methods
[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this utility model.
[0015] It should be noted that in this embodiment of the invention, all directional indications (such as up, down, left, right, front, back, etc.) are limited to relative positions on the specified view, rather than absolute positions.
[0016] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0017] Please see Figure 1 The present invention relates to a tri-band antenna for a metal-framed watch, comprising an upper cover 10, a metal frame 20, a main board 30, and a bottom cover 40. The upper cover 10 is connected to the upper side of the metal frame 20, and the bottom cover 40 is connected to the lower side of the metal frame 20. The upper cover 10, the metal frame 20, and the bottom cover 40 together form an accommodating space, and the main board 30 is disposed within the accommodating space.
[0018] The motherboard 30 is provided with a plurality of spring contacts 31, each of which is connected to a grounding point of the motherboard 30. The plurality of spring contacts 31 are in contact with the metal frame 20, and the metal frame 20 is in contact with a plurality of grounding points of the motherboard 30 through the plurality of spring contacts 31. The metal frame 20 serves as the main body of the antenna radiation to receive external electromagnetic signals.
[0019] The inner side of the metal frame 20 is integrally formed with multiple spring contact metal plates 21. The positions of the multiple spring contact metal plates 21 correspond to the positions of multiple spring pieces 31, and each spring piece 31 touches a spring contact metal plate 21.
[0020] The spring 31 is made of metal.
[0021] The motherboard 30 is equipped with a communication module, which is connected to the spring contact 31. The electromagnetic signals received by the metal frame 20 are transmitted to the communication module through the spring contact 31.
[0022] The metal frame 20 is fixed to the motherboard 30, which helps to ensure product consistency.
[0023] This utility model discloses a tri-band antenna for a watch with a metal frame. By using the metal frame 20 of the watch as the main antenna radiating element and grounding it at multiple points, multiple frequency bands can share a single metal frame 20 as an antenna. This effectively solves the problem of poor wireless signal caused by the all-metal casing structure of electronic products and the need to maintain the integrity of the appearance. While ensuring product quality and stable wireless communication, it effectively reduces product costs and improves the user experience.
[0024] The present invention relates to a metal-framed watch tri-band antenna, wherein the tri-band refers to the respective frequencies of GPSL1, GPSL5, and 2.4G Bluetooth.
[0025] The metal frame 20 has a positioning slot 22 on its inner side, and the bottom cover 40 has a positioning block 43 that matches the positioning slot 22. The positioning block 43 can be inserted into the positioning slot 22 to quickly position the bottom cover 40 and the metal frame 20, which is conducive to quick assembly.
[0026] The bottom cover 40 is provided with a plurality of connecting ears 41 on its side, and the connecting ears 41 are fixedly connected to the metal frame 20 by screws.
[0027] The bottom cover 40 has a plurality of connecting posts 42 on its inner side, which are used to fix the main board 30.
[0028] The top cover 10 can be fixed to the metal frame 20 by snap-fit or adhesive.
[0029] Compared with existing technologies, the metal frame watch tri-band antenna of this utility model uses the metal frame 20 of the watch as the main antenna radiating body and grounds it at multiple points to enable multiple frequency bands to share a single metal frame 20 as an antenna. This effectively solves the problem of poor wireless signal caused by the all-metal shell structure of electronic products and the need to maintain the integrity of the appearance. While ensuring product quality and stable wireless communication, it effectively reduces product costs and improves the user experience.
[0030] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any modifications, equivalent substitutions and improvements made within the concept of the present utility model should be included within the patent protection scope of the present utility model.
Claims
1. A tri-band antenna for a metal-framed watch, characterized in that, It includes a top cover, a metal frame, a motherboard, and a bottom cover. The top cover is connected to the upper side of the metal frame, and the bottom cover is connected to the lower side of the metal frame. The top cover, the metal frame, and the bottom cover together form an accommodating space, and the motherboard is disposed within the accommodating space. The motherboard has multiple spring contacts, each of which is connected to a grounding point on the motherboard. The multiple spring contacts are in contact with a metal frame, and the metal frame is in contact with multiple grounding points on the motherboard through the multiple spring contacts. The metal frame acts as an antenna radiating body to receive external electromagnetic signals.
2. The metal-framed watch tri-band antenna as described in claim 1, characterized in that, The inner side of the metal frame is integrally formed with multiple spring contacts on the metal plate. The positions of the multiple spring contacts on the metal plate correspond to the positions of the multiple spring contacts, and each spring contact touches one spring contact on the metal plate.
3. The metal-framed watch tri-band antenna as described in claim 1, characterized in that, The motherboard is equipped with a communication module, which is connected to a spring contact. The electromagnetic signals received by the metal frame are transmitted to the communication module through the spring contact.
4. The metal-framed watch tri-band antenna as described in claim 1, characterized in that, The shrapnel is made of metal.
5. The metal-framed watch tri-band antenna as described in claim 1, characterized in that, The inner side of the metal frame is provided with a positioning slot, and the bottom cover is provided with a positioning block that matches the positioning slot, and the positioning block is engaged with the positioning slot.
6. The metal-framed watch tri-band antenna as described in claim 1, characterized in that, The bottom cover has several connecting ears on its side, which are fixedly connected to the metal frame by screws.
7. The metal-framed watch tri-band antenna as described in claim 1, characterized in that, The bottom cover has several connecting posts on its inner side, which are used to fix the motherboard.
8. The metal-framed watch tri-band antenna as described in claim 1, characterized in that, The top cover is fixed to the metal frame by snap-fit or adhesive.