Glasses leg and glasses
By designing the front cavity and the back cavity in the temples and setting sound leakage holes and sound leakage pipes in the rear cavity, the problem of poor low-frequency effects in smart audio glasses is solved, achieving better low-frequency sound experience and far-field offset effect.
Patent Information
- Application Number
- CN202422340476.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-24
AI Technical Summary
In existing smart audio glasses, the resonance frequency of the micro speakers is high and the rear cavity space is small, resulting in poor low frequency effects, affecting the auditory experience and immersion.
The accommodating cavity is designed in the temples, and the speaker is divided into the front cavity and the rear cavity. A sound leakage hole and a sound leakage pipeline are installed in the rear cavity to increase the volume of the rear cavity, and the low-frequency effect is improved through the sound leakage hole and sound leakage pipeline design, while maintaining the far-field offset effect.
It improves the low-frequency sound effect in the human ears, enhances the fullness of the sound, while maintaining the privacy of the far field and no sound leakage, improving the user experience.
Smart Images
Figure CN223123329U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of smart glasses, and particularly relates to a temple and glasses. Background Art
[0002] During the current product design process, the speaker sound cavity of the temple is used to place the speaker unit, which is divided into a front sound cavity and a rear sound cavity. The speaker unit emits sound. The front sound cavity design can make the sound generate a cut-off frequency in the high-frequency band. A good front cavity structure can improve the mid-frequency and high-frequency. The rear sound cavity design can prevent the sound short circuit of the low-frequency part of the speaker and improve the low-frequency effect. In products such as smart audio glasses, to ensure the low-frequency effect, the larger the volume of the rear sound cavity, the better.
[0003] In products such as AR and audio glasses, due to the long wavelength of low frequency, long propagation distance, and non-directionality, the low-frequency effect can provide a richer, more powerful, and more realistic auditory experience, creating a better sense of immersion and space. Therefore, how to improve the low-frequency effect is crucial in acoustic design. There are three common ways to improve the low frequency: one is to give priority to selecting a speaker unit with a low resonance frequency when choosing a speaker; the other is to reserve enough rear cavity space for the speaker unit. However, both of these methods are limited by the acoustic design space reserved for products such as AR and audio glasses. Generally, a micro speaker is selected, and the resonance frequency of the micro speaker is relatively high, and the rear cavity space left for the speaker is relatively small.
[0004] Based on this, there is an urgent need for a temple and glasses to solve the above-mentioned problems. Summary of the Utility Model
[0005] Based on the above, the purpose of the utility model is to provide a temple and glasses, which can improve the low-frequency effect at the human ear while not weakening the far-field cancellation effect.
[0006] To achieve the above purpose, the utility model adopts the following technical solutions:
[0007] On the one hand, a temple is provided, including:
[0008] A temple housing, which is provided with a receiving cavity, and the bottom of the temple housing is used for hanging on the human ear;
[0009] A speaker, which is installed in the receiving cavity, and the speaker isolates the receiving cavity into a front cavity and a rear cavity;
[0010] The front cavity is provided with a sound outlet hole, the rear cavity is provided with a first sound leakage hole, the temple housing is further provided with a rear cavity sound leakage pipe communicating with the rear cavity, the rear cavity sound leakage pipe is provided with a second sound leakage hole, the sound outlet hole is located at the bottom of the temple housing, the first sound leakage hole and the second sound leakage hole are located at the top of the temple housing, and the distance between the first sound leakage hole and the sound outlet hole is less than the distance between the second sound leakage hole and the sound outlet hole.
[0011] As a preferred technical solution of the temple, the loudspeaker is provided with a diaphragm, and the area of the cross section of the sound outlet hole is not less than 10% of the area of the diaphragm.
[0012] As a preferred technical solution of the temple, the sound outlet hole extends along the direction towards the area of the temple housing for hanging on the human ear.
[0013] As a preferred technical solution of the temple, there are at least two second sound leakage holes.
[0014] As a preferred technical solution of the temple, the loudspeaker is provided with a diaphragm, and the total area of the cross sections of the second sound leakage holes is 12%-15% of the area of the diaphragm.
[0015] As a preferred technical solution of the temple, the connecting line between the center of the second sound leakage hole and the center of the loudspeaker is provided with an included angle α with respect to the horizontal plane, and the range of the included angle α is 0-45°.
[0016] As a preferred technical solution of the temple, the temple housing includes a bottom shell and a cover plate, the cover plate is detachably connected to the bottom shell, and the bottom shell and the cover plate enclose the accommodation cavity and the rear cavity sound leakage pipe.
[0017] As a preferred technical solution of the temple, a boss is provided on the side wall of the accommodation cavity away from the cover plate, the loudspeaker is lapped on the boss, and the front cavity is formed between the loudspeaker and the side wall of the accommodation cavity away from the cover plate.
[0018] As a preferred technical solution of the temple, the loudspeaker is bonded to the boss so that the loudspeaker is hermetically connected to the boss.
[0019] On the other hand, a pair of glasses is provided, which includes a lens body and two or more temples according to any one of the above solutions, and the two temples are respectively connected to both ends of the lens body.
[0020] The beneficial effects of the present utility model are as follows:
[0021] The present utility model provides a temple and glasses. The speaker is used for the device to play an audio signal. After the speaker emits sound, the sound is transmitted to the human ear through the sound outlet hole of the front cavity. The function of the first sound leakage hole in the rear cavity is to radiate reverse sound waves, which cancel out the radiated sound waves in the front cavity in the far field, improve the far-field privacy, and prevent sound leakage. By opening the rear cavity sound leakage pipeline, on the one hand, the volume of the rear cavity is increased, the resistance is reduced, the air load is increased, the equivalent acoustic mass is increased, so that the resonance frequency becomes smaller, and the resonance frequency of the vibration system is reduced; on the other hand, by adding the rear cavity sound leakage pipeline and the second sound leakage hole, part of the sound pressure of the first sound leakage hole is dispersed, the sound pressure radiated by the first sound leakage hole is reduced, the part of the low frequency canceled at the human ear is reduced, so that the low frequency of the sound received by the human ear is more full, the sound effect is better, and the use experience is improved. Moreover, at a distance from the temple, the reverse radiation sound waves emitted by the first sound leakage hole and the second sound leakage hole still have a far-field cancellation effect with the radiation sound waves emitted by the sound outlet hole, ensuring privacy. By making full use of the space of the temple and opening the rear cavity sound leakage pipeline according to the shape of the temple shell, the present utility model makes full use of the space of the temple and designs the rear cavity sound leakage pipeline according to the shape of the temple shell without wasting idle space; moreover, the distance from the added second sound leakage hole to the sound outlet hole is farther than the distance from the first sound leakage hole to the sound outlet hole, which can ensure that while improving the low-frequency effect at the human ear, the far-field cancellation effect is not weakened. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments of the present utility model. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present utility model and these drawings.
[0023] Figure 1 is a schematic structural diagram of the temple provided by the specific embodiment of the present utility model;
[0024] Figure 2 is Figure 1 a cross-sectional view taken along line A-A;
[0025] Figure 3 is an exploded view of the structure of the temple provided by the specific embodiment of the present utility model;
[0026] Figure 4 is a front view of the temple hanging on the human ear provided by the specific embodiment of the present utility model.
[0027] The reference signs in the figures are as follows:
[0028] 1. Temple housing; 11. Bottom shell; 111. Boss; 12. Cover plate; 13. Accommodating cavity; 14. Front cavity; 15. Rear cavity; 16. Sound outlet hole; 17. First sound leakage hole; 18. Rear cavity sound leakage pipeline; 19. Second sound leakage hole;
[0029] 2. Speaker. Detailed implementation manner
[0030] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only the parts related to the present utility model are shown in the accompanying drawings, rather than all the structures.
[0031] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0032] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.
[0033] In the description of this embodiment, the orientation or positional relationship terms such as "above", "below", "left", and "right" are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0034] Such as Figures 1-3As shown in the figure, this embodiment provides a pair of glasses, which includes a frame body and two temple arms. The two temple arms are respectively connected to both ends of the frame body. The temple arm includes a temple arm housing 1 and a speaker 2. Specifically, the temple arm housing 1 is provided with a receiving cavity 13, and the bottom of the temple arm housing 1 is used for hanging on the human ear; the speaker 2 is installed in the receiving cavity 13, and the speaker 2 divides the receiving cavity 13 into a front cavity 14 and a rear cavity 15; the front cavity 14 is provided with a sound outlet hole 16, the rear cavity 15 is provided with a first sound leakage hole 17, the temple arm housing 1 is also provided with a rear cavity sound leakage duct 18 communicating with the rear cavity 15, and the rear cavity sound leakage duct 18 is provided with a second sound leakage hole 19. The sound outlet hole 16 is located at the bottom of the temple arm housing 1, and the first sound leakage hole 17 and the second sound leakage hole 19 are located at the top of the temple arm housing 1. The distance between the first sound leakage hole 17 and the sound outlet hole 16 is less than the distance between the second sound leakage hole 19 and the sound outlet hole 16.
[0035] Among them, the speaker 2 is used for the device to play an audio signal. After the speaker 2 emits sound, the sound is transmitted to the human ear through the sound outlet hole 16 of the front cavity 14. The function of the first sound leakage hole 17 in the rear cavity 15 is to radiate a reverse sound wave, which cancels the radiated sound wave in the front cavity 14 in the far field, improves the far-field privacy, and prevents sound leakage. By opening the rear cavity sound leakage duct 18, on the one hand, the volume of the rear cavity 15 is increased, the resistance is reduced, the air load is increased, the equivalent acoustic mass is increased, so that the resonance frequency becomes smaller, and the resonance frequency of the vibration system is reduced; on the other hand, by adding the rear cavity sound leakage duct 18 and the second sound leakage hole 19, part of the sound pressure of the first sound leakage hole 17 is dispersed, so that the sound pressure radiated by the first sound leakage hole 17 is reduced, the part of the low frequency canceled at the human ear is reduced, making the low frequency of the sound received by the human ear more full, the sound effect better, and the use experience improved. Moreover, at a distance from the temple arm, the reverse radiation sound waves emitted by the first sound leakage hole 17 and the second sound leakage hole 19 still have a far-field cancellation effect with the radiation sound wave emitted by the sound outlet hole 16, ensuring privacy. By making full use of the space of the temple arm and opening the rear cavity sound leakage duct 18 according to the shape of the temple arm housing 1, this embodiment designs the rear cavity sound leakage duct 18 according to the shape of the temple arm housing 1 without wasting idle space; moreover, the distance from the added second sound leakage hole 19 to the sound outlet hole 16 is farther than the distance from the first sound leakage hole 17 to the sound outlet hole 16, which can ensure that while improving the low-frequency effect at the human ear, the far-field cancellation effect is not weakened.
[0036] Since the size of the sound outlet hole 16 will affect the high and middle frequency effects of the sound, in this embodiment, the speaker 2 is provided with a diaphragm, and the cross-sectional area of the sound outlet hole 16 is not less than 10% of the area of the diaphragm, improving the high and middle frequency effects of the sound. The size of the sound outlet hole 16 can be adaptively designed according to the size of the diaphragm.
[0037] Preferably, the temple is hung behind the human ear, and the sound outlet hole 16 extends along the direction of the area of the temple housing 1 for hanging the human ear. After the sound is emitted through the sound outlet hole 16, it is convenient for the human ear to receive the sound to the greatest extent.
[0038] Further preferably, there are at least two second sound leakage holes 19. By arranging the multiple second sound leakage holes 19 at intervals, on the one hand, the structural strength of the temple housing 1 is improved; on the other hand, the aesthetics of the temple housing 1 is improved.
[0039] In this embodiment, the rear cavity sound leakage duct 18 is opened to reduce the mid-high frequency effect, while the second sound leakage holes 19 are opened to improve the mid-high frequency effect. The combination of the two is beneficial to retaining the mid-high frequency effect of the sound. The speaker 2 is provided with a diaphragm, and the total cross-sectional area of the second sound leakage holes 19 is 12%-15% of the area of the diaphragm, so as to ensure that the mid-high frequency of the rear cavity 15 meets the requirements as much as possible.
[0040] Further, as Figure 4 shown, the connecting line between the center of the second sound leakage hole 19 and the center of the speaker 2 is set at an angle α relative to the horizontal plane, and the range of the angle α is 0-45°, meeting the structural requirements of the temple.
[0041] Even further, as Figures 1-3 shown, the temple housing 1 includes a bottom shell 11 and a cover plate 12. The cover plate 12 is detachably connected to the bottom shell 11, and the bottom shell 11 and the cover plate 12 enclose a receiving cavity 13 and a rear cavity sound leakage duct 18. In this embodiment, after the temple is hung behind the human ear, the speaker 2 is in a vertical state, the front cavity 14 is located on the side close to the head, the rear cavity 15 is located on the side far from the head, an opening is provided on the side of the bottom shell 11 far from the head, and the cover plate 12 is connected to the opening by clamping, bonding or through fasteners.
[0042] Preferably, a boss 111 is provided on the side wall of the receiving cavity 13 away from the cover plate 12, and the speaker 2 is lapped on the boss 111. The space between the speaker 2 and the side wall of the receiving cavity 13 away from the cover plate 12 forms the front cavity 14. The boss 111 provides positioning for the speaker 2, reducing the assembly difficulty. Moreover, the speaker 2 is lapped on the boss 111 so that the speaker 2 floats on the bottom of the receiving cavity 13 and forms the front cavity 14.
[0043] Further preferably, the speaker 2 is bonded to the boss 111, so that the speaker 2 is hermetically connected to the boss 111, realizing the sealed isolation between the front cavity 14 and the rear cavity 15, reducing the interference generated by the sound in the front cavity 14 and the sound in the rear cavity 15 inside the receiving cavity 13; and realizing the fixation of the speaker 2 in the receiving cavity 13.
[0044] Note that the above is only the preferred embodiment of the present utility model and the applied technical principles. Those skilled in the art will understand that the present utility model is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments, and substitutions can be made by those skilled in the art without departing from the protection scope of the present utility model. Therefore, although the present utility model has been described in detail through the above embodiments, the present utility model is not limited to the above embodiments. Without departing from the concept of the present utility model, more other equivalent embodiments can be included, and the scope of the present utility model is determined by the scope of the appended claims.
Claims
1. A temple, characterized in that, Comprising: A temple housing (1) provided with a receiving cavity (13), the bottom of the temple housing (1) being for hanging on a human ear; A loudspeaker (2) installed in the receiving cavity (13), the loudspeaker (2) isolating the receiving cavity (13) into a front cavity (14) and a rear cavity (15); The front cavity (14) is provided with a sound outlet hole (16), the rear cavity (15) is provided with a first sound leakage hole (17), the temple housing (1) is further provided with a rear cavity sound leakage pipe (18) communicating with the rear cavity (15), the rear cavity sound leakage pipe (18) is provided with a second sound leakage hole (19), the sound outlet hole (16) is located at the bottom of the temple housing (1), the first sound leakage hole (17) and the second sound leakage hole (19) are located at the top of the temple housing (1), and the distance between the first sound leakage hole (17) and the sound outlet hole (16) is less than the distance between the second sound leakage hole (19) and the sound outlet hole (16).
2. The temple according to claim 1, characterized in that, The loudspeaker (2) is provided with a diaphragm, and the cross-sectional area of the sound outlet hole (16) is not less than 10% of the area of the diaphragm.
3. The temple according to claim 1, characterized in that, The sound outlet hole (16) extends along the direction towards the area of the temple housing (1) for hanging on a human ear.
4. The temple according to claim 1, characterized in that, There are at least two second sound leakage holes (19).
5. The temple according to claim 4, characterized in that, The loudspeaker (2) is provided with a diaphragm, and the total cross-sectional area of the second sound leakage holes (19) is 12%-15% of the area of the diaphragm.
6. The temple according to claim 1, characterized in that, The line connecting the center of the second sound leakage hole (19) and the center of the loudspeaker (2) is set at an angle α relative to the horizontal plane, and the range of the angle α is 0-45°.
7. The temple according to claim 1, wherein The temple housing (1) includes a bottom shell (11) and a cover plate (12), the cover plate (12) is detachably connected to the bottom shell (11), and the bottom shell (11) and the cover plate (12) enclose the receiving cavity (13) and the rear cavity sound leakage pipe (18).
8. The temple according to claim 7, characterized in that, A boss (111) is provided on the side wall of the receiving cavity (13) away from the cover plate (12), the loudspeaker (2) is lapped on the boss (111), and the front cavity (14) is formed between the loudspeaker (2) and the side wall of the receiving cavity (13) away from the cover plate (12).
9. The temple according to claim 8, characterized in that, The loudspeaker (2) is bonded to the boss (111) so that the loudspeaker (2) is hermetically connected to the boss (111).
10. A pair of glasses, characterized in that, Comprising a spectacle frame body and two temples as described in any one of claims 1-9, the two temples are respectively connected to two ends of the spectacle frame body.