A temple with an acoustic sound guiding structure

Abstract

The utility model discloses a mirror leg with acoustic guide sound structure, including mirror leg body, the mirror leg body includes main part and ear bending part, and the main part is equipped with the air inlet and main body cavity that intercommunicate, and the ear bending part is equipped with ear bending cavity, and the main body cavity and ear bending cavity are intercommunicate, be equipped with the acoustic generation unit for generating acoustic signal in the main body cavity, the ear bending part is equipped with the sound outlet, and the ear bending cavity is equipped with the guide sound structure, and the guide sound structure inside forms the acoustic conduction sound channel with the sound outlet intercommunication. The utility model technical scheme is designed in order to solve the problem of low acoustic efficiency, low frequency response weakness and poor wearing adaptability in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of wearable product technology, and in particular to a temple with an acoustic sound-guiding structure. Background Technology

[0002] In recent years, with the rapid development of smart glasses technology, the design of temples with integrated audio functionality has become a hot research topic in the industry. By integrating speakers and sound outlets into the temples of the glasses, it allows users to listen to audio information through the glasses themselves without the need for additional headphones or other audio devices.

[0003] Most existing smart glasses designs embed miniature speakers directly into the temple cavity, with the sound outlet located on the side or top of the temple. However, this design has significant drawbacks:

[0004] Low acoustic efficiency: Sound waves are reflected multiple times in the narrow cavity, resulting in severe high-frequency attenuation, and the sound outlet is deviated from the direction of the ear canal, increasing the sound wave diffusion loss.

[0005] Weak low-frequency response: The small volume of the narrow-legged cavity causes the speaker diaphragm to be limited by air pressure imbalance. Utility Model Content

[0006] The main purpose of this invention is to provide a temple with an acoustic sound-conducting structure, which aims to solve the problems of low acoustic efficiency, weak low-frequency response and poor fit in the prior art.

[0007] To achieve the above objectives, the present invention proposes a temple with an acoustic sound-conducting structure, comprising a temple body, the temple body including a main body and an ear bend, the main body having an air inlet and a main body cavity that are interconnected, the ear bend having an ear bend cavity, the main body cavity and the ear bend cavity being interconnected, the main body cavity having an acoustic generating unit for generating acoustic signals; the ear bend having a sound outlet, the ear bend cavity having a sound-conducting structure, and the sound-conducting structure having an acoustic conduction channel that is interconnected with the sound outlet.

[0008] In one possible implementation, the outer surface shape of the sound-conducting structure is complementary to the inner wall contour of the ear bend cavity to form an interference fit.

[0009] In one possible implementation, the air inlet is located on the side wall of the main body and is located on the opposite side wall of the temple body, separate from the sound outlet.

[0010] In one possible implementation, at least one limiting post is provided in the cavity of the ear bend, and a matching limiting hole is provided at the corresponding position of the sound guiding structure. The limiting post and the limiting hole constitute a mechanical limiting structure to prevent displacement.

[0011] In one possible implementation, a bonding interface is formed between the sound output end of the acoustic generating unit and the input end of the sound guiding structure, and the bonding interface is filled with a sealant layer to form an airtight acoustic cavity between the acoustic generating unit and the sound guiding structure.

[0012] This invention provides a sound outlet on the bottom surface of the ear bend of the temple, ensuring the sound wave output direction is directly opposite the ear canal entrance. This allows the sound wave to propagate directly towards the ear canal, reducing sound wave diffusion loss in the air and thus improving acoustic efficiency. A sound-guiding structure is installed between the acoustic generating unit and the sound outlet, filling the gap between them. An acoustic conduction channel is located inside the sound-guiding structure, extending from the input end to the output end in a continuous, smooth, streamlined curved surface. Its input end is coupled to the output end of the acoustic generating unit, and its output end extends to the sound outlet on the bottom surface of the ear bend of the temple, forming a complete sound wave conduction path. This effectively reduces sound wave reflection and energy loss during conduction, ensuring that sound wave energy is concentrated and conducted to the sound outlet, avoiding sound wave scattering and energy loss within the internal cavity of the temple. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0015] Figure 2 This is a structural schematic diagram from another perspective of an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the back of an embodiment of the present invention after disassembly;

[0017] Figure 4 This is a front view diagram after disassembly of an embodiment of the present invention.

[0018] Explanation of icon numbers:

[0019] 1. Temple body; 11. Ear bend; 12. Main body; 13. Ear bend cavity; 14. Main body cavity; 2. Acoustic generating unit; 3. Sound outlet; 4. Sound guiding structure; 41. Acoustic conduction channel; 5. Air inlet; 61. Limiting post; 62. Limiting hole; 7. Sealing layer.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0022] To address the problems in the background technology, this utility model proposes a temple with an acoustic sound guiding structure 4, comprising a temple body 1, wherein the temple body 1 includes a main body 12 and an ear bend 11. The main body 12 is provided with an air inlet 5 and a main body cavity 14 that are mutually connected. The ear bend 11 is provided with an ear bend cavity 13, and the main body cavity 14 and the ear bend cavity 13 are connected. An acoustic generating unit 2 for generating acoustic signals is provided inside the main body cavity 14. The ear bend 11 is provided with a sound outlet 3, and the ear bend cavity 13 is provided with a sound guiding structure 4. An acoustic conduction channel 41 that is connected to the sound outlet 3 is formed inside the sound guiding structure 4.

[0023] Referring to the figures and diagrams, in this embodiment, the temple body 1 is injection molded from a lightweight plastic material (such as TR90 or polycarbonate) and consists of two parts: a main body 12 and an ear bend 11. The main body 12 has a hollow cavity 14 with a flattened elliptical cross-section, its major axis extending along the length of the temple. An air inlet 5 is provided on the side wall of the main body cavity 14 near the frame connection end. Its inner wall is polished to balance the internal and external air pressure and enhance low-frequency resonance. At least one circular or elliptical sound outlet 3 is provided on the bottom surface of the ear bend 11 (the ear bend 11 is a curved structure at the rear end of the temple that conforms to the ear for stable wearing). The position is optimized according to the shape of the ear to ensure that the sound wave output direction is directly opposite the ear canal entrance. The sound outlet 3's location allows the sound waves to propagate directly towards the ear canal, reducing sound wave diffusion loss in the air and thus improving acoustic efficiency. The main cavity 14 has a pre-drilled mounting slot near the temple for fixing the acoustic generating unit 2. The acoustic generating unit 2 can be a miniature moving coil speaker, a piezoelectric ceramic speaker, a bone conduction resonator, etc., and is fixed in the mounting slot of the cavity with adhesive backing. The speaker diaphragm plane is perpendicular to the cavity axis, and the sound output end faces the ear bend 11. To improve heat dissipation, the speaker shell is made of aluminum alloy.

[0024] The sound-conducting structure 4 is an independently injection-molded plastic component. Its outer contour matches the shape of the ear bend 11 cavity. The sound-conducting structure 4 contains an acoustic conduction channel 41, which extends from the input end to the output end in a continuous, smooth, streamlined curved surface. Specifically, the acoustic conduction channel 41 serves as a precisely designed sound wave transmission path. Its input end is coupled to the output end of the acoustic generating unit 2 via a precisely matched mechanical structure. This connection method can employ interference fit, adhesive fixing, or snap-fit ​​connection to ensure that the sound wave energy generated by the acoustic generating unit 2 is efficiently transmitted to the interior of the acoustic conduction channel 41. The output end of the acoustic conduction channel 41 extends to the sound outlet 3 on the bottom surface of the ear bend 11 of the temple, forming a complete sound wave transmission path. During the transmission process, the inner wall of the acoustic transmission channel 41 adopts a streamlined curved surface design, and the surface of the inner wall of the channel is polished to reduce the sound wave reflection loss. This effectively reduces the reflection and energy loss of the sound wave during the transmission process, ensuring that the sound wave energy is concentrated and transmitted to the sound outlet 3, and avoiding the scattering and energy loss of the sound wave in the internal cavity of the temple.

[0025] In one possible implementation, the outer surface shape of the sound-conducting structure is complementary to the inner wall contour of the ear-bend cavity 13 to form an interference fit. Specifically, in this embodiment, the assembly gap between the outer wall of the sound-conducting structure 4 and the inner wall of the cavity is controlled within a certain range to ensure the radial stability of the sound-conducting structure 4 within the cavity. The interference fit allows the sound-conducting structure to form a zero-gap contact with the inner wall of the cavity, effectively suppressing lateral leakage of sound waves in the transmission path, and the complementary contours eliminate cavity resonance.

[0026] In one possible implementation, the air inlet 5 is located on the side wall of the main body 12, and is located on the opposite side wall of the temple body 1, separate from the sound outlet 3.

[0027] Referring to the reference figures and diagrams, in this embodiment, an air inlet 5 is provided on the side wall of the cavity of the temple body 1. This air inlet 5 is located on the non-sound wave radiating surface side wall of the acoustic generating unit 2 and has a slender strip or circular hole structure. The position and size of the air inlet 5 are determined through precise calculations to ensure both the balance of air pressure inside and outside the cavity and the formation of a specific acoustic resonance effect. When the diaphragm of the acoustic generating unit 2 reciprocates, the air inlet 5 allows air to flow freely, avoiding the formation of negative or overpressure states inside the cavity, ensuring the linearity of diaphragm vibration, and reducing low-frequency distortion. At the same time, the sound outlet 3 is located on the bottom surface of the ear bend 11 (facing the ear canal), and the air inlet 5 is located on the top surface of the main body cavity 14 (non-sound wave radiating surface). The opposite-side arrangement of the two can prevent mutual interference of airflow during diaphragm vibration and ensure uniform air pressure changes.

[0028] In one possible implementation, at least one limiting post 61 is provided in the cavity of the ear bend 11, and a matching limiting hole 62 is provided at the corresponding position of the sound guiding structure 4. The limiting post 61 and the limiting hole 62 constitute a mechanical limiting structure to prevent displacement.

[0029] Referring to the figures, in this embodiment, a cylindrical limiting post 61 is provided on the inner wall of the cavity on the side opposite to the acoustic generating unit 2 of the ear bend 11. This post is integrally formed with the temple body 1 via injection molding, and its axis is perpendicular to the length direction of the cavity. A matching limiting hole 62 is provided at a corresponding position on the sound guiding structure 4. The hole diameter matches the diameter of the limiting post 61, forming an interference fit. During assembly, the limiting post 61 is embedded in the limiting hole 62 of the sound guiding structure 4 to achieve radial positioning constraint, thereby precisely installing the transmission structure and enabling it to fill and seal the cavity between the acoustic generating unit 2 and the sound outlet 3.

[0030] In one possible implementation, a joint interface is formed between the output end of the acoustic generating unit 2 and the input end of the sound guiding structure 4. This joint interface is filled with a sealant layer 7 to form an airtight acoustic cavity between the acoustic generating unit 2 and the sound guiding structure 4. Specifically, an assembly gap is also left between the output end of the acoustic generating unit 2 and the input end of the sound guiding structure 4, and this gap is filled with a room temperature vulcanizing silicone rubber sealant layer 7. This ensures the sealing of the acoustic cavity, maintains consistency in the acoustic profile, and allows for stable adjustments by the EQ software.

[0031] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0032] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A temple with an acoustic sound-conducting structure, comprising a temple body, the temple body including a main body and an ear bend portion, the main body having an air inlet and a main body cavity that are mutually connected, the ear bend portion having an ear bend cavity, the main body cavity and the ear bend cavity being mutually connected, characterized in that: The main cavity is provided with an acoustic generating unit for generating acoustic signals; the ear bend is provided with a sound outlet, and the ear bend cavity is provided with a sound guiding structure, and an acoustic conduction channel communicating with the sound outlet is formed inside the sound guiding structure.

2. The temple with an acoustic sound-conducting structure according to claim 1, characterized in that, The outer surface shape of the sound-conducting structure is complementary to the inner wall contour of the ear cavity to form an interference fit.

3. The temple with an acoustic sound-conducting structure according to claim 1, characterized in that, The air inlet is located on the side wall of the main body and is located on the opposite side wall of the temple body, separate from the sound outlet.

4. The temple with an acoustic sound-conducting structure according to claim 1, characterized in that, At least one limiting post is provided in the cavity of the ear bend, and a matching limiting hole is provided at the corresponding position of the sound guiding structure. The limiting post and the limiting hole constitute a mechanical limiting structure to prevent displacement.

5. The temple with an acoustic sound-conducting structure according to claim 1, characterized in that, A joint interface is formed between the sound output end of the acoustic generating unit and the input end of the sound guiding structure. The joint interface is filled with a sealant layer to form an airtight acoustic cavity between the acoustic generating unit and the sound guiding structure.

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