A watch having an acoustic cavity structure
By designing a sound cavity structure in a smartwatch, and using the amplifying back cover and sound guide hole to form a Helmholtz resonant cavity, the problems of increased power consumption and overheating of components in the existing technology are solved, achieving sound amplification and energy saving.
Patent Information
- Application Number
- CN202521420436.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-08
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-08
AI Technical Summary
Existing smartwatches increase volume by increasing buzzer power or optimizing driver circuitry, which leads to a significant increase in power consumption and may cause overheating of components.
Design a watch with a sound cavity structure. A sound cavity is formed by fixing a sound-amplifying back cover on the back of the smart watch body. A circular array of sound guide holes is set on the side wall of the sound-amplifying back cover to form a Helmholtz resonant cavity structure. The sound guide holes are used to achieve sound wave diffusion and reduce sound energy loss.
It achieves physical amplification of sound, reduces power consumption, avoids overheating of components, and has a more energy-efficient structural design.
Smart Images

Figure CN224682559U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of smartwatch technology, and more particularly to a watch with a sound cavity structure. Background Technology
[0002] A smartwatch is a wearable device that combines the functions of a smartphone and a wristwatch. It features core functions such as location tracking and anti-loss, audio and video calls, as well as various other functions including electronic payments, health monitoring, social networking, photography, and intelligent object recognition. Currently, most smartwatches integrate a buzzer for reminders; however, due to size limitations, the buzzer is usually mounted directly on the back of the watch case, lacking an effective acoustic amplification structure.
[0003] Existing technologies mainly increase volume by increasing buzzer power or optimizing drive circuits, but this leads to a significant increase in power consumption and may cause overheating of components. Therefore, improvements are now being made to a watch with a sound cavity structure. Utility Model Content
[0004] To address the shortcomings of existing technologies, this application provides a watch with a sound cavity structure, which overcomes the deficiencies of existing technologies and aims to solve the problem that existing smartwatches mainly increase volume by increasing buzzer power or optimizing drive circuits, but this leads to a significant increase in power consumption and may cause overheating of components.
[0005] To achieve the above objectives, this application provides the following technical solution: a watch with a sound cavity structure, including a smart watch body, a buzzer is provided inside the smart watch body, a speaker back cover is fixedly installed on the back of the smart watch body by screws, the rear wall of the speaker back cover protrudes outward to form a speaker cavity inside it, and a plurality of sound guide holes are opened on the side wall of the speaker back cover in a circumferential array evenly distributed, and the speaker cavity is connected to the external space through the sound guide holes.
[0006] By adopting the above technical solution, the speaker back cover is fixedly installed on the back of the smartwatch body with screws. Since the back wall of the speaker back cover protrudes outward, a speaker cavity can be formed inside the speaker back cover to form a Helmholtz resonant cavity structure, which amplifies the sound of the buzzer. The circumferential array of sound guide holes can realize the diffusion of sound waves. Combined with the internal reflective surface of the speaker cavity, sound energy loss is reduced. That is, the watch achieves physical amplification of acoustic performance through precise structural design, which is more energy-efficient than the traditional method of increasing the power of the buzzer or optimizing the drive circuit.
[0007] As a preferred technical solution of this application, the back of the smartwatch body is provided with a threaded hole, which is adapted to a screw, and the outer surface of the speaker back cover is provided with a through hole for the screw to pass through.
[0008] By adopting the above technical solution, the speaker back cover is clamped and fixed between the smartwatch body and the screw through the cooperation of the threaded hole, screw and through hole, and a rigid connection is formed by the pre-tightening force, so as to realize the fixed installation of the speaker back cover.
[0009] As a preferred technical solution of this application, the smart watch body has lugs symmetrically arranged on both outer walls. The inside of the two lugs is respectively rotatably connected to a first watch strap and a second watch strap. The other end of the first watch strap is rotatably connected to a buckle that fastens to the second watch strap. The outer surface of the first watch strap is provided with a watch ring, and the outer surface of the second watch strap is provided with a plurality of adjustment holes.
[0010] By adopting the above technical solution, the length of the smartwatch body strap can be adjusted through the cooperation between the first strap, the second strap, the buckle, the adjustment hole, and the watch ring. The locking structure formed by the buckle and the adjustment hole allows the smartwatch body to be worn on the arm.
[0011] As a preferred technical solution of this application, the first watch strap, the second watch strap, and the watch bezel are all made of cowhide material, and the watch buckle is a stainless steel component.
[0012] By adopting the above technical solutions, the cowhide is soft and breathable, fits the wrist well, and is not prone to pressure or stuffiness when worn for a long time, making it suitable for daily use. The stainless steel material is highly corrosion-resistant and does not easily rust, so the buckle made from it is not afraid of sweat stains.
[0013] As a preferred technical solution of this application, a screen is embedded in the front of the main body of the smartwatch, and a protective film is pasted on the upper surface of the screen.
[0014] By adopting the above technical solution, a protective film is used to protect the screen and prevent it from being scratched or damaged.
[0015] As a preferred technical solution of this application, a charging port is provided on the side wall of the smartwatch body.
[0016] By adopting the above technical solution, the main body of the smartwatch can be connected to an external charger through the charging port to replenish power, and the side opening avoids the problem of difficult plugging and unplugging caused by the bottom interface being blocked by the watch strap.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] In this invention, the amplifier back cover is fixedly installed on the back of the smartwatch body by screws. Since the back wall of the amplifier back cover protrudes outward, an amplification cavity can be formed inside the amplifier back cover to form a Helmholtz resonant cavity structure, which amplifies the sound of the buzzer. The circumferential array of sound guide holes can realize the diffusion of sound waves. Combined with the internal reflective surface of the amplification cavity, sound energy loss is reduced. That is, the watch achieves physical amplification of acoustic performance through precise structural design, which is more energy-efficient than the traditional methods of increasing buzzer power or optimizing drive circuit.
[0019] With reference to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating the ways in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereto. Attached Figure Description
[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0021] Figure 1 This is a schematic diagram of the overall structure of this application;
[0022] Figure 2 This is a schematic diagram showing the disassembled back structure of the smartwatch body of this application;
[0023] Figure 3 This is a schematic diagram of the structure of the amplifier back cover of this application;
[0024] Figure 4 This is a split view of the front structure of the smartwatch body of this application.
[0025] In the picture: 1. Smartwatch body; 2. Speaker back cover; 3. Screw; 4. Speaker cavity; 5. Sound guide hole; 6. Threaded hole; 7. Through hole; 8. Lug; 9. First watch band; 10. Second watch band; 11. Buckle; 12. Watch bezel; 13. Adjustment hole; 14. Screen; 15. Protective film; 16. Charging port. Detailed Implementation
[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0027] like Figure 1 - Figure 4As shown, this embodiment provides a watch with a sound cavity structure, including a smartwatch body 1. A buzzer is installed inside the smartwatch body 1. A sound amplification back cover 2 is fixedly installed on the back of the smartwatch body 1 by screws 3. The rear wall of the sound amplification back cover 2 protrudes outward to form a sound amplification cavity 4 inside. Several sound guide holes 5 are evenly distributed in a circular array on the side wall of the sound amplification back cover 2. The sound amplification cavity 4 is connected to the external space through the sound guide holes 5. In use, the sound amplification back cover 2 is fixedly installed on the back of the smartwatch body 1 by screws 3. Since the rear wall of the sound amplification back cover 2 protrudes outward, a sound amplification cavity 4 can be formed inside the sound amplification back cover 2 to form a Helmholtz resonant cavity structure, amplifying the sound of the buzzer. The circular array of sound guide holes 5 can realize sound wave diffusion. Combined with the internal reflective surface of the sound amplification cavity 4, sound energy loss is reduced. That is, this watch achieves physical amplification of acoustic performance through precise structural design, which is more energy-efficient than the traditional method of increasing buzzer power or optimizing drive circuit.
[0028] In this embodiment, as Figure 2 and 3 As shown, a threaded hole 6 is provided on the back of the smartwatch body 1. The threaded hole 6 is adapted to the screw 3. A through hole 7 is provided on the outer surface of the speaker back cover 2 for the screw 3 to pass through. In use, the speaker back cover 2 is clamped and fixed between the smartwatch body 1 and the screw 3 by the cooperation between the threaded hole 6, the screw 3 and the through hole 7. A rigid connection is formed by the pre-tightening force, so as to realize the fixed installation of the speaker back cover 2.
[0029] In this embodiment, as Figure 1 As shown, the smartwatch body 1 has symmetrical lugs 8 on both outer walls. The first watch strap 9 and the second watch strap 10 are rotatably connected to the inside of the two lugs 8 respectively. The other end of the first watch strap 9 is rotatably connected to a buckle 11 that is fastened to the second watch strap 10. The outer surface of the first watch strap 9 is provided with a watch loop 12. The outer surface of the second watch strap 10 has several adjustment holes 13. In use, the length of the watch strap of the smartwatch body 1 is adjusted by the cooperation between the first watch strap 9, the second watch strap 10, the buckle 11, the adjustment holes 13 and the watch loop 12. The locking structure formed by the buckle 11 and the adjustment holes 13 allows the smartwatch body 1 to be worn on the arm.
[0030] In this embodiment, as Figure 1 As shown, the first strap 9, the second strap 10, and the watch bezel 12 are all made of cowhide, while the buckle 11 is made of stainless steel. When in use, cowhide is soft and breathable, fits the wrist, and does not easily cause pressure or stuffiness when worn for a long time, making it suitable for daily use. Stainless steel is highly corrosion-resistant and does not easily rust, so the buckle 11 made of it is not afraid of sweat stains.
[0031] In this embodiment, as Figure 4As shown, a screen 14 is embedded in the front of the smartwatch body 1, and a protective film 15 is pasted on the upper surface of the screen 14. When in use, the screen 14 is protected by the protective film 15 to prevent the screen 14 from being scratched or damaged.
[0032] In this embodiment, as Figure 4 As shown, the smartwatch body 1 has a charging port 16 on its side wall. When in use, the smartwatch body 1 is connected to an external charger through the charging port 16 to replenish the power. The side opening avoids the problem of difficult plugging and unplugging caused by the bottom interface being blocked by the watch strap.
[0033] The working principle of this utility model is as follows: When using a watch with a sound cavity structure according to this application, the amplifying back cover 2 is fixedly installed on the back of the smart watch body 1 by screws 3. The amplifying cavity 4 is formed inside the amplifying back cover 2 to form a Helmholtz resonant cavity structure, which can amplify the sound of the buzzer. The circumferential array sound guide hole 5 can realize the diffusion of sound waves, and in conjunction with the internal reflective surface of the amplifying cavity 4, the sound energy loss is reduced, ensuring that the sound emitted by the buzzer is loud enough.
[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0036] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.
Claims
1. A watch with a sound cavity structure, comprising a smartwatch body (1), characterized in that, The smart watch body (1) is equipped with a buzzer inside. The back of the smart watch body (1) is fixedly installed with a speaker back cover (2) by screws (3). The back wall of the speaker back cover (2) protrudes outward to form a speaker cavity (4) inside. The side wall of the speaker back cover (2) is provided with a number of sound guide holes (5) evenly distributed in a circular array. The speaker cavity (4) is connected to the outside space through the sound guide holes (5).
2. A watch with a sound cavity structure according to claim 1, characterized in that, The back of the smartwatch body (1) is provided with a threaded hole (6), which is adapted to the screw (3). The outer surface of the speaker back cover (2) is provided with a through hole (7) for the screw (3) to pass through.
3. A watch with a sound cavity structure according to claim 1, characterized in that, The smart watch body (1) has lugs (8) symmetrically arranged on both outer walls. The two lugs (8) are respectively rotatably connected to a first strap (9) and a second strap (10). The other end of the first strap (9) is rotatably connected to a buckle (11) that is fastened to the second strap (10). The outer surface of the first strap (9) is provided with a watch ring (12). The outer surface of the second strap (10) is provided with several adjustment holes (13).
4. A watch with a sound cavity structure according to claim 3, characterized in that, The first watch strap (9), the second watch strap (10) and the watch ring (12) are all made of cowhide, and the watch buckle (11) is a stainless steel component.
5. A watch with a sound cavity structure according to claim 1, characterized in that, The smartwatch body (1) has a screen (14) embedded in the front, and a protective film (15) is pasted on the upper surface of the screen (14).
6. A watch with a sound cavity structure according to claim 1, characterized in that, The smartwatch body (1) has a charging port (16) on its side wall.