Glasses leg sound transmission device and glasses

Abstract

The utility model relates to the technical field of auxiliary sound transmission for audio glasses, in particular to a glasses leg sound transmission device and glasses, the glasses leg sound transmission device comprises a mounting part and a sound transmission part, the mounting part is detachably connected to a glasses leg of the glasses, and the sound transmission part transmits sound emitted by a sound production unit mounted at the glasses leg to an earhole corresponding to the glasses leg; the sound transmission part is provided with a sound transmission inlet and a sound transmission outlet which are communicated with each other to form a sound transmission channel; the sound transmission inlet is in butt joint with the sound outlet of the sound production unit, so that sound emitted by the sound outlet enters the sound transmission channel through the sound transmission inlet and is transmitted in the sound transmission channel in an air conduction mode, and the sound is transmitted out from the sound transmission outlet and is transmitted to earholes corresponding to the glasses legs. In conclusion, the glasses leg sound transmission device effectively solves the problems of the glasses leg sound module in the prior art in the aspects of sound quality, noise resistance and privacy by optimizing the sound transmission path and mode, and provides better and more private listening experience for users.

Description

Technical Field

[0001] This utility model relates to the technical field of assisting sound transmission in audio glasses, and in particular to a sound transmission device for the temples of glasses and glasses. Background Technology

[0002] With the widespread use and increasing intelligence of electronic devices, people's demand for interactive entertainment and access to electronic devices at any time is growing. At the same time, concerns about privacy and noise in public places are also increasing, leading to the widespread use of headphones. However, prolonged headphone use poses potential health hazards. To address this issue, technology has emerged that integrates sound modules into the temples of eyeglasses, utilizing the existing wearing scenarios of prescription or protective eyeglasses, allowing users to interact and enjoy entertainment without the need for additional headphones.

[0003] However, this type of sound module mounted on the temple of the eyeglasses has the following problems:

[0004] Sound quality is affected by distance: There is a certain distance between the sound outlet at the temple of the glasses and the user's ear canal, which can easily affect the sound quality transmitted to the ear canal.

[0005] Noise interference: In environments with high external noise, users may have difficulty hearing the sound coming from the speaker clearly.

[0006] Sound leakage affects others: If you increase your volume to overcome distance and noise problems, the sound can easily spread to the surroundings and affect others.

[0007] Therefore, while existing technologies offer convenience for the sound modules in eyeglass temples, they fall short in terms of sound propagation quality, noise immunity, and sound privacy. Utility Model Content

[0008] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0009] This utility model provides a sound transmission device for the temple of glasses, including a mounting part and a sound transmission part fixedly connected to each other. The mounting part is used to detachably connect the sound transmission device to the temple of the glasses. The sound transmission part has a certain length so as to transmit the sound emitted by the sound-generating unit installed at the temple to the ear hole corresponding to the temple.

[0010] The sound transmission part has a sound transmission inlet at one end facing the sound outlet and a sound transmission outlet at the other end facing the ear canal. The sound transmission inlet and the sound transmission outlet are connected to each other to form a sound transmission channel for sound transmission.

[0011] The sound inlet is connected to the sound outlet of the sound-producing unit, so that the sound emitted from the sound outlet enters the sound transmission channel through the sound inlet and is transmitted through the sound transmission channel by air conduction, so that the sound is transmitted out from the sound outlet and thus to the ear hole corresponding to the temple.

[0012] Furthermore, the opening size of the sound transmission outlet is smaller than the opening size of the sound transmission inlet.

[0013] Furthermore: the section of the sound transmission part near the sound transmission inlet is set as the sound receiving section, which works with the sound transmission inlet to connect with the sound outlet, thereby assisting in collecting the sound emitted from the sound outlet; the section of the sound transmission part near the sound transmission outlet is set as the sound output section, which works with the sound transmission outlet to guide the sound in the sound transmission channel, thereby releasing and propagating the sound towards the ear canal.

[0014] Furthermore: the receiving section is bent towards the ear hole by a certain degree relative to the mounting section, forming a bend, so that the sound transmission section extends a certain length towards the ear hole, thereby making the sound transmission outlet directly opposite the ear hole.

[0015] Furthermore, the sidewall of the sound output section away from the sound transmission outlet is designed as a reflective sidewall, which bends a certain angle from the position where it intersects with the sound receiving section toward the sound transmission outlet, thereby forming a reflective surface with a certain area, and then reflecting the sound waves toward the sound transmission outlet.

[0016] Furthermore, the opening shape of the sound transmission outlet is set to a fan-shaped ring.

[0017] Furthermore: the mounting part is provided with a U-shaped main body, the U-shaped main body is provided with a sleeve top wall and a sleeve side wall fixed to each other, and the end of the sleeve side wall away from the sleeve top wall is fixed to the two side walls of the sound receiving section respectively, so that the U-shaped main body and the sound receiving section cooperate with each other to form a cylindrical through hole, and can be sleeved on the temple to form a detachable fixed installation.

[0018] Furthermore, the slanted body is provided with an auxiliary through hole, which is used to connect to the tuning hole of the sound-generating unit.

[0019] This utility model also provides a pair of glasses with a sound-emitting unit at the temple, which can emit sound; it also includes the aforementioned temple sound transmission device, which is sleeved on the temple of the glasses so that the sound emitted by the sound-emitting unit is transmitted through the temple sound transmission device and released to the ear hole corresponding to the temple.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. Improve sound propagation quality and directionality: By setting up a sound transmission part, the sound emitted by the sound unit at the temple is guided to the sound transmission outlet close to the ear canal, avoiding sound diffusion to the outside world, improving the sound propagation quality and directionality, and allowing users to hear the sound more clearly.

[0022] 2. Enhanced noise resistance: Sound travels in a relatively closed manner through the transmission channel, reducing the interference of external noise on sound transmission and improving the audibility of the sound.

[0023] 3. Protect voice privacy: The sound is transmitted directionally through the sound transmission channel, which effectively prevents the sound from spreading in all directions, reduces the impact on the surrounding people, and protects the user's voice privacy.

[0024] 4. Creates sound focusing effect and increases sound pressure: The opening size of the sound outlet is smaller than that of the sound inlet, forming a sound transmission channel with a gradually decreasing cross-sectional area. By utilizing the principle of acoustic impedance matching, scattering loss is reduced, and sound beam convergence is formed, which increases the sound pressure level by 10~15dB and provides a fuller sound experience.

[0025] 5. Optimize the sound propagation path: Set up a receiving segment and a sound output segment, and bend the receiving segment towards the ear canal to form a bend, so that the sound output is directly opposite the ear canal, thus optimizing the sound propagation path and ensuring that the sound is effectively transmitted to the ear canal.

[0026] 6. Optimize sound convergence by using reflective sidewalls: The sidewall on the side of the sound output segment away from the sound transmission outlet is set as a reflective sidewall, forming a reflective surface that reflects sound waves toward the sound transmission outlet, forming a beam-shaped sound wave, which further improves the sound propagation quality and the user's listening experience.

[0027] 7. Fan-shaped sound outlet optimizes sound release: The sound outlet is set in a fan shape, which helps the reflected sound waves to gather and be released at the opening of the fan ring, so that users receive a stronger sound pressure and improve the listening experience.

[0028] In summary, this temple sound transmission device effectively solves the problems of sound quality, noise resistance, and privacy in existing eyeglass temple sound modules by optimizing the sound propagation path and method, providing users with a better and more private listening experience.

[0029] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] 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 these drawings without creative effort.

[0031] Figure 1 This is a structural schematic diagram of the temple and mounting part of the mirror according to this utility model;

[0032] Figure 2 This is a structural schematic diagram of the right temple and the right sound transmission device of this utility model;

[0033] Figure 3 This is a structural schematic diagram of the left temple of the glasses and the left sound transmission device of this utility model.

[0034] Figure 4 This is a schematic diagram of the sound transmission devices on the left and right sides of this utility model;

[0035] Figure 5 This is a structural schematic diagram of the sound transmission devices on the left and right sides from another angle of this utility model;

[0036] Figure 6 This is a schematic diagram of the U-shaped main body and auxiliary through hole of this utility model;

[0037] Figure 7 This is a schematic diagram of the structure of the sound transmission part and the bending part of this utility model;

[0038] Figure 8 This is a schematic diagram of the structure of the sound-emitting section and the reflective sidewall of this utility model;

[0039] Figure 9 This is a schematic diagram of the sound transmission inlet and sound transmission outlet of this utility model;

[0040] Figure 10 This is a schematic diagram of the reflective surface and sound transmission channel of this utility model;

[0041] Figure 11 This is an audio spectrum diagram obtained by testing whether or not a sound transmission device is installed on the temple of the mirror of this utility model.

[0042] The reference numerals and names in the figure are as follows:

[0043] 10 Mounting section; 11 U-shaped main body; 12 Top wall fitting; 13 Side wall fitting; 14 Auxiliary through hole; 20 Sound transmission section; 21 Receiving section; 22 Bending section; 23 Sound output section; 24 Reflective side wall; 25 Reflective curved surface; 30 Sound transmission channel; 31 Sound transmission inlet; 32 Sound transmission outlet; 40 Eyeglasses; 41 Temples; 42 Sound generating unit; 43 Sound outlet; 44 Tuning hole. Detailed Implementation

[0044] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0045] Please see Figures 1 to 11 In this embodiment of the present invention, a sound transmission device for the temple of glasses includes a mounting part 10 and a sound transmission part 20 fixedly connected to each other. The mounting part 10 is used to detachably connect the sound transmission device to the temple 41 of the glasses 40. The sound transmission part 20 has a certain length so as to transmit the sound emitted by the sound-generating unit 42 installed at the temple 41 to the ear hole corresponding to the temple 41.

[0046] The sound transmission section 20 has a sound transmission inlet 31 at one end facing the sound outlet 43, and a sound transmission outlet 32 ​​at the other end facing the ear canal. The sound transmission inlet 31 and the sound transmission outlet 32 ​​are connected to each other to form a sound transmission channel 30 for sound transmission.

[0047] The sound transmission inlet 31 is connected to the sound outlet 43 of the sound-emitting unit 42, so that the sound emitted from the sound outlet 43 enters the sound transmission channel 30 through the sound transmission inlet 31 and is transmitted in the sound transmission channel 30 by air conduction, so that the sound is transmitted out from the sound transmission outlet 32 ​​and thus transmitted to the ear hole corresponding to the temple 41.

[0048] Specifically, with the miniaturization and increasing intelligence of electronic devices, people's demand for real-time interaction and entertainment is becoming more frequent. At the same time, people are paying more attention to privacy protection and issues related to loudspeaker use in public places. Therefore, people often wear headphones for interaction or entertainment with electronic devices. However, prolonged headphone use can easily lead to health problems.

[0049] Therefore, a sound module was developed and installed on the temple 41 of the glasses 40. Taking advantage of the existing scenario where nearsighted people need to wear prescription glasses 40 and outdoor users typically wear protective goggles 40, this allows people to interact or engage in entertainment without needing to wear additional headphones. For example, by incorporating existing electronic devices such as microphones, speakers, and Bluetooth chips into the sound module, functions such as call interaction and audiovisual entertainment can be achieved.

[0050] Although the sound module's outlet 43, located on the temple 41 of the glasses 40, can emit sound without being inserted into the ear canal, thus avoiding the health problems associated with prolonged headphone use, the outlet 43 on the temple 41 is still some distance from the user's ear canal. This can easily affect the sound quality entering the ear canal, and in cases of loud external noise, the sound from the outlet 43 may be difficult to hear. If the emitted sound is too loud, it may disturb others.

[0051] This invention, by detachably installing a sound transmission device at the location of the sound outlet 43 on the temple 41, prevents the sound emitted from the sound outlet 43 from spreading to the outside. Instead, the sound enters the sound transmission channel 30 directly through the sound transmission inlet 31, propagates within the sound transmission channel 30, and then exits from the sound transmission outlet 32. This achieves the effect of releasing sound close to the user's ear canal, which not only improves the quality of sound transmission but also avoids the problem of sound spreading to the surroundings and affecting others.

[0052] Secondly, when wearing glasses 40, the temples 41 are usually resting on the ears. Therefore, the aforementioned ear holes refer to the ear holes corresponding to the ears that support the temples 41 when wearing glasses 40. This allows the sound emitted from the sound outlet 43 at the corresponding temple 41 to be directly transmitted to the corresponding ear holes through the sound transmission device, thereby improving the sound transmission quality and avoiding disturbing others.

[0053] like Figure 6 and Figure 9 As shown, preferably, the opening size of the sound transmission outlet 32 ​​is smaller than the opening size of the sound transmission inlet 31.

[0054] Specifically, to create a sound focusing effect, the opening size of the sound transmission outlet 32 ​​is preferably smaller than that of the sound transmission inlet 31. This allows the sound to be collected through the larger inlet and then directionally transmitted through a closed channel from the smaller outlet. The sound emitted from the sound outlet 43 at the temple 41 first passes through the larger opening of the sound transmission inlet 31, then propagates relatively in a closed manner within the sound transmission channel 30, and finally is focused and transmitted from the smaller opening of the sound transmission outlet 32. This allows the sound to propagate into the ear canal near its opening. Through the gradually decreasing cross-sectional area of ​​the sound transmission channel 30 (inlet cross-sectional area > outlet cross-sectional area), the principle of acoustic impedance matching is used to reduce sound scattering loss during propagation. Simultaneously, the reduced outlet size creates a focused sound beam, increasing the sound pressure level by 10-15 dB.

[0055] Secondly, such as Figure 11 As shown, the audio spectrum obtained under standard laboratory testing conditions shows the changes in the RMS level (vertical axis, in dBSPL) of the audio signal with frequency (horizontal axis, in Hz) in two cases: "with sound transmission device 75" (red line) and "without sound transmission device 76" (blue line).

[0056] Low frequency range (around 30-200Hz): Both the red line (with a sound transmission device) and the blue line (without a sound transmission device) show fluctuations in the initial stage. The signal with a sound transmission device has a relatively high RMS level at certain frequency points in the low frequency range, indicating that the sound transmission device may have enhanced the sound intensity in these low frequency ranges.

[0057] Mid-frequency range (around 200Hz-2kHz): The red line is generally at a high level, indicating that when there is a sound transmission device, the sound energy in the mid-frequency range is relatively concentrated and the sound intensity is relatively high. The blue line is relatively stable and its value is lower than the red line, meaning that the sound intensity in the mid-frequency range is weaker when there is no sound transmission device.

[0058] High frequency range (2kHz-20kHz): Both curves show obvious fluctuations. The red line maintains a relatively high level in certain high-frequency regions, but there is also attenuation; the blue line also fluctuates, intersecting with the red line in some high-frequency regions, indicating that the presence or absence of a sound transmission device has a complex impact on sound intensity in the high-frequency range, and the performance varies at different frequency points.

[0059] like Figure 8 As shown, preferably, the section of the sound transmission part 20 near the sound transmission inlet 31 is designated as the receiving section 21. The receiving section 21 works in conjunction with the sound transmission inlet 31 to connect with the sound outlet 43, thereby assisting in collecting the sound emitted from the sound outlet 43. The section of the sound transmission part 20 near the sound transmission outlet 32 ​​is designated as the sound output section 23. The sound output section 23 works in conjunction with the sound transmission outlet 32 ​​to guide the sound within the sound transmission channel 30, thereby releasing and propagating the sound towards the ear canal.

[0060] Specifically, since the glasses 40 are worn on the upper part of the ear, there is still a certain distance between the sound outlet 43 at the temple 41 and the ear canal. In order to better transmit the sound from the sound outlet 43 to the ear canal, it is preferable to set a certain length of sound transmission part 20 on the sound transmission device, and extend it from the position of the sound outlet 43 to the ear canal by a corresponding length, so that the sound transmission outlet 32 ​​is directly opposite the ear canal, and the sound is released to the ear canal in a targeted manner, thereby optimizing the quality of sound transmission.

[0061] Secondly, based on the acoustic functional zoning within the sound transmission channel 30 and taking the sound wave propagation direction as a reference, the sound transmission section 20 is divided into a front receiving section 21 and a rear output section 23. That is, within the sound transmission section 20 of a certain length, considering the functional characteristics of the sound inlet 31 (which collects sound) and the sound outlet 32 ​​(which releases sound), the structure of the sound transmission section 20 is set as a mutually connected receiving section 21 and an output section 23. This allows the size, shape, and other parameters of the receiving section 21 to be specifically designed according to the functional characteristics of sound collection; similarly, the size, shape, and other parameters of the output section 23 can also be specifically designed according to the functional characteristics of sound release.

[0062] like Figure 5 , Figure 7 and Figure 9 As shown, preferably, the receiving section 21 is bent at a certain angle relative to the mounting section 10 toward the ear hole to form a bent section 22, so that the sound transmission section 20 extends a certain length toward the ear hole, thereby making the sound transmission outlet 32 ​​face the ear hole.

[0063] Specifically, in order to ensure that the sound transmission outlet 32 ​​is directly opposite the ear canal, the sound receiving section 21 is preferably configured as a bending section 22, which bends towards the ear canal by a certain degree, and the bending section 22 guides the sound to propagate towards the sound transmission outlet 32, so as to facilitate the release of the sound to the ear canal.

[0064] Secondly, taking the axis of the mounting part 10 and the temple 41 as a reference, the sound receiving section 21 bends from the end of the mounting part 10 toward the side where the ear canal is located (such as the side and back of the human head) by an angle θ (θ=30~60°) to form an L-shaped or arc-shaped bend 22, so that the axis of the sound transmission outlet 32 ​​is aligned with the center of the ear canal.

[0065] like Figure 4 , Figure 5 , Figure 6 and Figure 8 As shown, preferably, the sidewall of the sound output section 23 away from the sound transmission outlet 32 ​​is set as a reflective sidewall 24, which bends a certain degree from the position where it intersects with the sound receiving section 21 toward the sound transmission outlet 32, thereby forming a reflective surface 25 with a certain area, and then reflecting the sound waves toward the sound transmission outlet 32.

[0066] Specifically, to further optimize sound propagation, it is preferable to designate the sidewall of the sound transmission section 20 away from the sound transmission outlet 32, specifically the portion located in the sound output section 23, as a reflective sidewall 24. A reflective surface 25 is formed on the inner side of this side facing the sound transmission channel 30, reflecting the sound entering the sound transmission channel 30. This causes the sound to converge towards the sound transmission outlet 32, forming a beam of sound waves, which are then released to the ear canal, improving sound propagation quality, optimizing sound quality, and enhancing the user experience. The reflective surface 25 is an acoustic reflective surface that reflects sound waves.

[0067] like Figures 2 to 7 As shown, preferably, the opening shape of the sound transmission outlet 32 ​​is set to a fan ring shape.

[0068] Specifically, to further optimize sound propagation, especially the propagation characteristics of sound waves reflected by the reflective surface 25 of the sound outlet 23, the opening shape of the sound transmission outlet 32 ​​is preferably set to a fan-ring shape. This allows the reflected sound waves to be concentrated and released at the fan-ring opening, and then propagated into the ear canal near the ear canal, providing the user with a fuller, stronger sound pressure level and enhancing the user's listening experience. The fan-ring shape is equivalent to a portion of a planar ring, similar to a fan-shaped notch in a circular ring.

[0069] like Figure 6 and Figure 9 As shown, preferably, the mounting part 10 is provided with a U-shaped body 11, the U-shaped body 11 is provided with a sleeve top wall 12 and a sleeve side wall 13 fixedly connected to each other, and the end of the sleeve side wall 13 away from the sleeve top wall 12 is fixedly connected to the two side walls of the sound receiving section 21, so that the U-shaped body 11 and the sound receiving section 21 cooperate with each other to form a cylindrical through hole, and can be sleeved on the temple 41 to form a detachable fixed installation.

[0070] Specifically, in order to install and fix the sound transmission device on the temple 41 of the glasses 40, a U-shaped main body 11 is preferably provided in the mounting part 10, and the U-shaped main body 11 and the sound transmission part 20 cooperate with each other to form a cylindrical through hole, so that it can be detachably sleeved on the temple 41, so that the sound transmission inlet 31 is connected to the sound outlet 43 of the temple 41, and then the sound emitted from the sound outlet 43 is received. After being guided and propagated by the sound transmission part 20, a sound with better sound quality is formed, which is directly released to the ear hole corresponding to the temple 41 through the sound transmission outlet 32, thereby improving the user's user experience.

[0071] Secondly, the U-shaped main body 11 is made of elastic material, and the top wall 12 and the two side walls 13 form a U-shaped groove structure. The ends of the two side walls 13 are fixed to the outer wall of the sound-receiving section 21 by means of buckles, flexible connecting parts or integral molding, forming a cylindrical through hole that can be opened and closed elastically. The inner diameter of the cylindrical through hole is adapted to the outer diameter of the temple 41, and detachable installation is achieved by elastic clamping.

[0072] like Figure 4 , Figure 6 and Figure 8 As shown, preferably, the U-shaped main body 11 is provided with an auxiliary through hole 14, which is used to connect to the tuning hole 44 of the sound-generating unit 42.

[0073] Specifically, when the diaphragm vibrates, it periodically compresses / expands the air inside the cavity of the sound-generating unit 42. If the tuning port 44 is not provided, the change in air pressure inside the cavity will create a reaction force that hinders the movement of the diaphragm, resulting in distortion. The tuning port 44 balances the internal and external air pressure, allowing the diaphragm to vibrate freely, thereby optimizing the low-frequency response and sound quality. Therefore, in order to prevent the U-shaped body 11 from blocking the tuning port 44 when the temple 41 is fitted, it is also necessary to provide a corresponding auxiliary through hole 14 on the U-shaped body 11 to avoid the tuning port 44, so that it can properly control the air intake and exhaust and the acoustic environment inside the cavity to optimize sound performance.

[0074] like Figures 1 to 3 As shown, preferably, a pair of glasses 40 has a sound-emitting unit 42 at the temple 41, which can emit sound; the temple sound transmission device is sleeved on the temple 41 of the glasses 40, so that the sound emitted by the sound-emitting unit 42 is transmitted to the ear hole corresponding to the temple 41 through the temple sound transmission device.

[0075] Specifically, the sound transmission device on the temple can be fitted onto the temple 41 of an existing pair of glasses 40, where a sound-generating unit 42 is installed on the temple 41. This allows the sound transmission inlet 31 to be connected to the sound-generating unit 42, thereby transmitting the sound emitted by the sound-generating unit 42 to the sound transmission outlet 32 ​​and releasing it at the ear hole corresponding to the temple 41, thus allowing the user to hear a sound with better quality.

[0076] Secondly, since the glasses 40 has two temples 41, when a sound-generating unit 42 is provided on one of the temples 41, a corresponding sound transmission device can also be installed. And when both temples 41 are provided with sound-generating units 42, two corresponding sound transmission devices can also be installed.

[0077] Since the left and right ears face different directions, the structures of the two sound transmission devices can be designed accordingly based on the different temples 41, especially the direction of the sound transmission outlet 32 ​​needs to be improved. Figures 2 to 5 As shown, the left-side sound transmission device is mounted on the left temple 41, with its sound outlet 32 ​​located on the right side, corresponding to the left ear canal. The right-side sound transmission device is mounted on the right temple 41, with its sound outlet 32 ​​located on the left side, corresponding to the right ear canal. This allows for better transmission of the sound emitted by the sound-emitting unit 42 on the corresponding temple 41 to the corresponding ear canal, and also guides, reflects, or focuses the sound, improving the quality of the mid-to-low frequencies and enhancing the user experience.

[0078] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A sound transmission device for temples of glasses, characterized in that, It includes a mounting part (10) and a sound transmission part (20) that are fixed to each other. The mounting part (10) is used to detachably connect the sound transmission device to the temple (41) of the glasses (40). The sound transmission part (20) has a certain length so as to transmit the sound emitted by the sound-generating unit (42) installed at the temple (41) to the ear hole corresponding to the temple (41). The sound transmission part (20) has a sound transmission inlet (31) at one end facing the sound outlet (43), and a sound transmission outlet (32) at the other end facing the ear hole. The sound transmission inlet (31) and the sound transmission outlet (32) are connected to each other to form a sound transmission channel (30) for sound transmission. The sound inlet (31) is connected to the sound outlet (43) of the sound-emitting unit (42), so that the sound emitted from the sound outlet (43) enters the sound transmission channel (30) through the sound inlet (31) and is transmitted in the sound transmission channel (30) by air conduction, so that the sound is transmitted out from the sound outlet (32) and thus transmitted to the ear hole corresponding to the temple (41).

2. The sound transmission device for temples of glasses according to claim 1, characterized in that, The opening size of the sound transmission outlet (32) is smaller than the opening size of the sound transmission inlet (31).

3. The sound transmission device for temples of glasses according to claim 1, characterized in that, The section of the sound transmission part (20) near the sound transmission inlet (31) is designated as the sound receiving section (21). The sound receiving section (21) works with the sound transmission inlet (31) to connect with the sound outlet (43), thereby assisting in collecting the sound emitted from the sound outlet (43). The section of the sound transmission part (20) near the sound transmission outlet (32) is designated as the sound output section (23). The sound output section (23) works with the sound transmission outlet (32) to guide the sound in the sound transmission channel (30), thereby releasing and propagating the sound to the ear canal.

4. The sound transmission device for temples of glasses according to claim 3, characterized in that, The receiving section (21) bends towards the ear hole by a certain angle relative to the mounting section (10) to form a bent section (22), so that the sound transmission section (20) extends towards the ear hole by a certain length, thereby making the sound transmission outlet (32) directly opposite the ear hole.

5. The sound transmission device for temples of glasses according to claim 3, characterized in that, The side wall of the sound output section (23) away from the sound transmission outlet (32) is set as a reflective side wall (24), which bends a certain amount from the position where it intersects with the sound receiving section (21) toward the sound transmission outlet (32), thereby forming a reflective surface (25) with a certain area, and then reflecting the sound wave toward the sound transmission outlet (32).

6. The sound transmission device for the temple of a pair of glasses according to claim 1, characterized in that, The opening shape of the sound transmission outlet (32) is set to a fan ring shape.

7. The sound transmission device for temples of glasses according to claim 1, characterized in that, The mounting part (10) is provided with a U-shaped main body (11), which is provided with a sleeve top wall (12) and a sleeve side wall (13) fixed to each other. The end of the sleeve side wall (13) away from the sleeve top wall (12) is fixed to the two side walls of the sound receiving section (21), so that the U-shaped main body (11) and the sound receiving section (21) cooperate with each other to form a cylindrical through hole, which can be sleeved on the temple (41) to form a detachable fixed installation.

8. The sound transmission device for temples of glasses according to claim 7, characterized in that, The slanted body (11) is provided with an auxiliary through hole (14), which is used to connect to the tuning hole (44) of the sound-generating unit (42).

9. A pair of eyeglasses, wherein a sound-emitting unit (42) is provided at the temple (41) for emitting sound; characterized in that, The invention includes a temple sound transmission device according to any one of claims 1-8, wherein the temple sound transmission device is fitted onto the temple (41) of the eyeglasses (40), so that the sound emitted by the sound-generating unit (42) is transmitted through the temple sound transmission device and released to the ear hole corresponding to the temple (41).

Images