Audio system and intelligent glasses

Abstract

The embodiment of the utility model discloses an audio system and intelligent glasses. The audio system comprises a carrier and a loudspeaker monomer. The carrier is provided with a first side wall and a second side wall, the first side wall is provided with a sound leakage hole, and the second side wall is provided with a sound outlet hole. The loudspeaker single body is arranged in the carrier, the carrier and the loudspeaker single body are matched to form a front cavity and a rear cavity, the sound leakage hole is communicated with the rear cavity, and the sound outlet hole is communicated with the front cavity. An included angle is formed between the loudspeaker monomer and the first side wall, the first end of the loudspeaker monomer is close to the first side wall, and the second end of the loudspeaker is far away from the first side wall. The intelligent glasses comprise a glasses frame, glasses legs and at least one audio system, wherein the audio system is arranged in the glasses legs.

Description

[0001] This divisional application was filed on August 14, 2023, with the application number 202322183954.8 and the invention title "Audio System and Smart Glasses". Technical Field

[0002] The present disclosure relates to the technical field of electronic devices, and in particular, to an audio system and smart glasses. Background Art

[0003] As a carrier for human-computer interaction, sound is usually integrated inside electronic devices. With the increasing variety and decreasing volume of electronic devices, it is often necessary to limit the volume of the audio system. For example, considering the wearing comfort and aesthetic degree of smart glasses, the temple is usually designed with a narrow edge, and this narrow-edge design will compress the volume of the audio system. Therefore, how to improve the sound effect of a small-volume audio system has become a technical problem that urgently needs to be solved. Utility Model Content

[0004] Embodiments of the present disclosure provide an audio system and smart glasses.

[0005] On the one hand, the present disclosure provides an audio system, including: a carrier and a speaker unit. The carrier has a sound leakage hole and a sound outlet hole. The speaker unit is disposed inside the carrier. The carrier and the speaker unit cooperate to form a front cavity and a rear cavity. The sound leakage hole communicates with the rear cavity, and the sound outlet hole communicates with the front cavity. The speaker unit and the first side wall form an included angle. The first end of the speaker unit approaches the first side wall, and the second end of the speaker is away from the first side wall.

[0006] On the other hand, the present disclosure provides a pair of smart glasses, including: a frame, temples, and at least one of the above-mentioned audio systems.

[0007] The technical solutions of the present disclosure will be further described in detail below with reference to the drawings and embodiments. Description of the Drawings

[0008] The drawings constituting a part of the specification depict embodiments of the present disclosure and, together with the description, are used to explain the principles of the present disclosure.

[0009] Referring to the drawings, the present disclosure can be more clearly understood according to the following detailed description, where:

[0010] Figure 1 Shows a three-dimensional structural schematic diagram of the audio system provided by the embodiment of the present disclosure;

[0011] Figure 2 Shows an exploded view of the audio system provided by the embodiment of the present disclosure;

[0012] Figure 3Schematic diagram of the internal structure of the audio system provided by an embodiment of the present disclosure;

[0013] Figure 4 Cross-sectional view of the audio system provided by an embodiment of the present disclosure;

[0014] Figure 5 Schematic diagram of the internal structure of the audio system provided by an embodiment of the present disclosure after removing part of the carrier;

[0015] Figure 6 Shows Figure 5 Cross-sectional view in the A-A direction in;

[0016] Figure 7 Partial structure diagram of the first structure of the audio system provided by an embodiment of the present disclosure;

[0017] Figure 8 Partial structure diagram of the second structure of the audio system provided by an embodiment of the present disclosure;

[0018] Figure 9 Schematic diagram of the structure of the audio system provided by an embodiment of the present disclosure with an inclined step provided on the carrier;

[0019] Figure 10 Shows Figure 9 Another perspective view of;

[0020] Figure 11 Cross-sectional schematic diagram of the structure in which the speaker unit of the audio system provided by an embodiment of the present disclosure is inclined in the direction perpendicular to the plane of the carrier;

[0021] Figure 12 Side view of the smart glasses provided by an embodiment of the present disclosure.

[0022] In the figure, 1, carrier; 1a, retaining rib; 11, first housing; 111, first side wall; 111a, sound leakage hole; 112, second side wall; 1121, outward convex arc section; 1122, sound outlet hole; 113, third side wall; 114, enclosure; 115, inclined step; 116, non-inclined step; 12, second housing; 13, front cavity; 14, rear cavity; 15, isolation cavity; 2, speaker unit; 3, smart glasses; 31, spectacle frame; 32, temple; 321, position where the audio system is provided; 322, inclined section.

[0023] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model but are not intended to limit the scope of the present utility model.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, 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 should not be construed as a limitation to the present utility model.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation" and "connection" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium. 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 circumstances.

[0027] Figure 1 Shows the external structure of the audio system 100 provided by the present disclosure. Figure 2 Shows an exploded view of the audio system 100 provided by the present disclosure. Figure 3 Shows the internal structure of the audio system 100 provided by the present disclosure. The audio system 100 may include a carrier 1 and a speaker unit 2.

[0028] In some alternative embodiments, the above-mentioned speaker unit 2 may be inclined and disposed within the carrier 1, as Figure 3 shown.

[0029] In some alternative embodiments, the above-mentioned carrier 1 has a first sidewall 111 and a second sidewall 112. A sound leakage hole 111a is provided on the first sidewall 111, and a sound outlet hole 1122 is provided on the second sidewall 112. The speaker unit 2 is inclined and arranged relative to the first sidewall 111, as Figure 3 shown.

[0030] In some alternative embodiments, the above-mentioned carrier 1 may include a first sidewall 111 with a planar surface and a second sidewall 112 with a curved surface. The speaker unit 2 may be inclined and arranged relative to the first sidewall 111, as Figure 3 shown.

[0031] The carrier 1 has a first side wall 111 and a second side wall 112. An acoustic leakage hole 111a is provided on the first side wall 111, and a sound outlet hole 1122 is provided on the second side wall 112. The speaker unit 2 can be disposed within the carrier 1, and the carrier 1 and the speaker unit 2 cooperate to form a front cavity 13 and a rear cavity 14. The acoustic leakage hole 111a can communicate with the rear cavity 14, and the sound outlet hole 1122 can communicate with the front cavity 13. The speaker unit 2 and the first side wall 111 form an included angle. The first end of the speaker unit 2 approaches the first side wall 111, and the second end of the speaker approaches the first side wall 111 and is away from it. Therefore, the speaker unit 12 is inclined on the plane of the carrier 1, and the plane of the carrier 1 is perpendicular to the thickness direction of the speaker unit 2.

[0032] It should be noted that in the embodiments of the present disclosure, the first end and the second end of the speaker unit 2 are not limited. The first end and the second end are respectively located on opposite sides of the speaker unit 2. When the speaker unit 2 is rectangular, the first end and the second end can be respectively located at both ends of the speaker unit 2 along the length direction, or the first end and the second end can be respectively located at both ends of the speaker unit 2 along the width direction. The first end and the second end of the speaker unit 2 are mainly used to define the inclined placement of the speaker unit 2 within the carrier 1. Optionally, the first side wall 111 can also have a first end and a second end, where the first end of the first side wall 111 is close to the first end of the speaker unit 2, and the second end of the first side wall 111 is close to the second end of the speaker unit 2. The distance from the acoustic leakage hole 111a to the second end of the first side wall 111 is greater than the distance from the acoustic leakage hole 111a to the first end of the first side wall 111.

[0033] It can be understood that the above-mentioned first side wall 111 and second side wall 112 can be two opposite side walls, as Figure 2 shown. Or, the above-mentioned first side wall 111 and second side wall 112 can be two adjacent side walls, and there is no unique limitation here.

[0034] Figure 4 A cross-sectional view of the audio system 100 is shown. The label L in the figure shows the distance between the speaker unit 2 and the acoustic leakage hole 111a. From Figure 4 it can be seen that in the embodiments of the present application, by inclining the speaker unit 2 relative to the carrier 1, the distance L between the speaker unit 2 and the acoustic leakage hole 111a can be made larger, so that the airflow through the acoustic leakage hole 111a is smoother.

[0035] As Figure 3 shown in the internal structure schematic diagram of the audio system 100, the carrier 1 can be a long and narrow box (for example, the aspect ratio of the cavity of the carrier 1 is between 1.4 and 2.5), and the speaker unit 2 is inclined in the carrier 1. When the speaker unit 2 vibrates and emits sound, the airflow generated in the rear cavity 14 can flow in the direction indicated by the arrow. The speaker unit 2, asFigure 3 After being placed obliquely, the distance between it and the sound leakage hole 111a can be made larger, especially the distance between it and the sound leakage hole 111a close to the second end of the speaker 2 is larger. For example, this distance can be greater than 1.4 mm. Therefore, the flow of the air current through the sound leakage hole 111a of the rear cavity 14 can be smoother. The speaker unit 2 is placed obliquely within the plane of the carrier 1, which can ensure that there is a sufficient air flow channel for the air leakage hole 111a on the carrier 1 under the condition of limited width direction, ensure smoother air flow in the rear cavity 14, no air flow noise, and the harmonic distortion THD will also be reduced.

[0036] It can be understood that the overall volume of the audio system in the present disclosure is relatively small. Considering factors such as sound effects and cost, the volume of the speaker unit 2 is usually not too small. In order to ensure the sound effects of the audio system, its volume is usually adapted to the volume of the cavity of the carrier 1. For example, the length and width of the speaker unit 2 are slightly smaller than the length and width of the cavity of the carrier 1. In this case, if the distance between the speaker unit 2 and the side wall of the carrier 1 is too close, it is likely to affect the sound effects. The solution of the present disclosure can increase the distance between the speaker unit 2 and the sound leakage hole 111a, thereby ensuring smoother air flow in the rear cavity 14.

[0037] Optionally, the above audio system 100 can be installed in the structure of an electronic device such as the temple of smart glasses. When the audio system 100 is arranged in a narrow structure of an electronic device such as the temple of smart glasses, the carrier 1 often needs to be designed in a long and narrow shape. In this case, placing the speaker unit 2 obliquely can make the distance between it and the air leakage hole 111a larger. It can be understood that when the carrier 1 does not have a long strip design, the speaker unit 2 can also be placed obliquely to further increase the distance between it and the sound leakage hole 111a.

[0038] In some alternative embodiments, the above carrier 1 can also be a part of the housing of an electronic device. As an example, the above carrier 1 can be the temple of smart glasses, or the earphone shell or the housing of other electronic devices with a sound generating function, etc. Taking the carrier 1 as the temple of smart glasses as an example, a speaker unit 2 can be arranged inside the temple, and the temple housing can have a first side wall provided with a sound leakage hole and a second side wall provided with a sound outlet hole.

[0039] In some alternative embodiments, the above audio system 100 can control the front cavity 13 and the rear cavity 14 in various ways to radiate sound waves to the outside world in a manner equivalent to a sound dipole. Specifically, the front cavity 13 and the rear cavity 14 respectively radiate a first sound wave and a second sound wave to the outside world through the sound outlet hole 1122 and the sound leakage hole 111a, so that in the near field near the sound outlet hole 1122 or near the sound leakage hole 111a, the first sound wave or the second sound wave can be heard by the human ear. The second sound wave is phase-shifted from the first sound wave (for example, by 180 degrees), so that the energies of the first sound wave and the second sound wave can cancel each other out in the far field, thereby reducing the sound leakage of the audio system and protecting privacy. The audio system can achieve a sound dipole in various ways. As an example, the audio system can be provided with two speaker units, and each speaker unit can cooperate with the carrier to respectively form a front cavity and a rear cavity. By controlling the amplitudes of the sound waves of each speaker unit to be substantially the same and the phases to be substantially opposite, the front cavity and the rear cavity can radiate sound waves in a manner equivalent to a sound dipole.

[0040] In some embodiments of the present disclosure, as Figure 2 and Figure 3 shown, the first side wall 111 and the second side wall 112 are spaced apart and arranged opposite to each other. When the sound outlet hole 1122 and the sound leakage hole 111a are respectively arranged on two opposite side walls, the phases of the sound waves radiated by the sound outlet hole 1122 and the sound leakage hole 111a can be made substantially opposite, thereby achieving privacy protection in the manner of a sound dipole. For example, the speaker unit 2 is placed inside the carrier 1, a front cavity is formed between the speaker unit and one side of the carrier 1, and a rear cavity is formed between the speaker unit and the other side of the carrier. The front cavity can communicate with the outside air through the sound outlet hole, and the rear cavity communicates with the outside air through the sound leakage hole. The sound waves in the rear cavity and the sound waves in the front cavity will be superimposed outside, and the two have opposite phases and will cancel each other out after superposition. Thus, non-users (for example, users of non-electronic devices) cannot clearly hear the sound from the sound outlet hole, thereby achieving the purpose of preventing privacy leakage. As an example, the audio system 100 can be provided on the temple of smart glasses. When the smart glasses are worn on the user's head, the temple is placed on the user's ear, so that one of the sound outlet hole 1122 and the sound leakage hole 111a is close to the user's ear hole, and the other is far from the user's ear hole. One of the first sound wave and the second sound wave emitted by the front cavity and the rear cavity can be heard by the user, and the other can be radiated to the outside world. The second sound wave and the first sound wave will be superimposed at a position far from the user's ear. Since the first sound wave and the second sound wave have a phase shift (for example, the phases are exactly opposite), they will cancel each other out after superposition, so that people around the user of the smart glasses cannot hear the sound emitted by the smart glasses, protecting the privacy of the user.

[0041] In some alternative embodiments, one or more sound leakage holes 111a may be provided on the first sidewall 111. The sound leakage holes 111a are arranged at intervals in sequence along the length direction of the first sidewall 111. The distance between at least one sound leakage hole 111a and the speaker unit 2 is not less than 1.4 mm. When at least two sound leakage holes 111a are provided on the first sidewall 111, the distance between the sound leakage hole 111a closer to the second end of the speaker unit 2 and the speaker unit 2 is greater than 1.4 mm. When one sound leakage hole 111a is provided on the first sidewall 111, the distance between the sound leakage hole 111a and the speaker unit 2 may be greater than 1.4 mm. A relatively large distance between the sound leakage hole 111a and the speaker unit 2 can make the flow of the air current through the sound leakage hole 111a in the rear cavity smoother. Further, it can ensure that under the condition of limited width direction, the sound leakage hole 111a has sufficient air current channels, ensuring smoother air current in the rear cavity, no air current noise, and also reducing the total harmonic distortion THD.

[0042] In some alternative embodiments, as shown in Figure 3 In the state where the speaker unit 2 is installed on the carrier 1, the sound leakage hole of the speaker unit 2 and a sound leakage hole 111a are opposite in position, so that the air current discharged from the sound leakage hole can be discharged more smoothly through the sound leakage hole, the gas flow path is smooth, further reducing the air current resistance, making the air current in the rear cavity 14 smoother and without air current noise. In the solution disclosed in this embodiment, the distance between the sound leakage hole 111a and the speaker unit 2 can be understood as the distance between the sound leakage hole 111a and the sound leakage hole on the speaker unit 2 in the direction perpendicular to the first sidewall 111. The sound leakage hole and the sound leakage hole 111a are arranged oppositely, which can make the distance between the sound leakage hole and the sound leakage hole large enough, so that the rear cavity sound leakage hole has sufficient air current channels, ensuring smoother air current in the rear cavity and no air current noise.

[0043] As Figure 3 In the internal structure diagram of the audio system shown, the "H" - shaped part on the speaker unit 2 can be the sound leakage hole of the speaker unit 2. It is roughly aligned with the sound leakage hole 111a on the first sidewall 111, and this point can define the position of the speaker unit 2 in the length direction of the first sidewall 111. On this basis, by defining the distance between the sound leakage hole 111a and the speaker unit 2, the larger this distance is, the smoother the air current of the sound leakage hole 111a will be.

[0044] In some alternative embodiments, in the speaker unit 2, the side of the surface where the sound leakage hole is located and close to the sound leakage hole 111a is the first side. The distance between the first side and the inner upper surface (not the inner surface of the sidewall) of the carrier 1 is m. In this embodiment, m can be greater than or equal to 0.5 mm. It can be understood that the above - mentioned first side can also be described as the side of the speaker unit 2 that is close to the sound leakage hole and extends along the length direction of the carrier 1, and the surface where the first side of the speaker unit 2 is located can cooperate with the carrier 1 to form the rear cavity 14. FromFigure 4 As can be seen from the airflow direction of the air vent shown by the arrow in the figure, the dimension defined by m is the position with the smallest dimension in the airflow direction. The dimension at this position is greater than or equal to 0.5 mm, which can ensure smoother airflow in the rear cavity. It can be understood that the above-mentioned speaker unit 2 is placed obliquely, which can make the position defined by m away from the sound leakage hole, the distance between the inner upper surface of the carrier 1 and the first side is larger, and the airflow in the rear cavity is smoother.

[0045] In some alternative embodiments, such as Figure 4 As shown, the distance between the second side of the above-mentioned speaker unit 2 and the inner lower surface of the carrier 1 (not the inner surface of the side wall) can be n. In this embodiment, n can be greater than or equal to 0.4 mm. The above-mentioned second side can be the side of the speaker unit 2 that is close to the sound outlet hole and extends along the length direction of the carrier 1. The surface where the second side of the speaker unit 2 is located can cooperate with the carrier 1 to form the front cavity 13. From Figure 4 the front cavity 13 and the sound outlet hole in the figure, it can be seen that the dimension defined by n is the position with the smallest dimension from the front cavity to the sound outlet hole. The dimension at this position is greater than or equal to 0.4 mm, which can ensure smoother airflow in the front cavity.

[0046] In some alternative embodiments, the distances between the first end and the second end of the speaker unit 2 and the first side wall 111 can be the first distance and the second distance respectively, and the second distance can be 3 to 5 times the first distance. The solution disclosed in this embodiment can control the inclination degree of the speaker unit 2 relative to the first side wall to be large enough, so that there is enough airflow channel for the sound leakage hole in the rear cavity, ensuring smoother airflow in the rear cavity and no airflow noise.

[0047] In some alternative embodiments, the included angle between the side wall of the speaker unit 2 close to the sound leakage hole and the first side wall 111 is α, and 3° < α < 10°. The solution disclosed in this embodiment can control the inclination degree of the speaker unit 2 relative to the first side wall to be large enough, so that there is enough airflow channel for the sound leakage hole in the rear cavity, ensuring smoother airflow in the rear cavity and no airflow noise.

[0048] In some alternative embodiments, the inner length of the first side wall is 2 to 3 times the effective inner length of the sound leakage hole along the direction of the first side wall. In the solution disclosed in this embodiment, the extension length of the sound leakage hole along the first side wall is large, which is beneficial to the smooth airflow in the rear cavity, and the airflow can be discharged from the rear cavity more smoothly.

[0049] In some alternative embodiments, the length of the speaker unit 2 can be 1.5 to 2.5 times the effective inner length of the sound leakage hole 111a along the direction of the first side wall 111. The relative extension length of the sound leakage hole 111a to the length of the speaker unit 2 is appropriate, the airflow in the rear cavity is smooth, and the airflow can be discharged from the rear cavity smoothly.

[0050] In some optional embodiments, at least two sound leakage holes 111a may be provided on the audio system, and the sound leakage holes 111a are provided on the first side wall 111, and the sound leakage holes 111a are arranged in sequence along the length direction of the first side wall 111. The effective inner length of the sound leakage hole along the first side wall defined above can be understood as the sum of the effective inner lengths of the sound leakage holes along the first side wall. That is, no matter how many sound leakage holes 111a are provided in the audio system, the sum of the effective inner lengths of these sound leakage holes 111a along the first side wall 111 needs to meet the set requirements. Figure 3 shows the internal structure of the audio system, Figure 4 A cross-sectional view of an audio system is shown. The carrier 1 of the audio system may include two separate structures, a first shell 11 and a second shell 12. The first shell 11 may have a first side wall 111 and a second side wall 112. The first shell 11 and the second shell 12 may be interlocked, a front cavity 13 is formed between the speaker unit 2 and the first shell 11, and a rear cavity 14 is formed between the second shell 12, the first shell 11 and the speaker unit 2. The separate structure of the carrier 1 may reduce the difficulty of installing the audio system.

[0051] As an example, the carrier 1 may be a temple of the smart glasses, the first shell may be an inner shell of the temple, and the second shell may be an outer shell of the temple. Alternatively, the carrier 1 may be a box disposed on the temple of the smart glasses, the first shell in the carrier 1 being disposed close to the inner shell of the temple, and the second shell being disposed close to the outer shell of the temple. When the smart glasses are worn, the inner shell is facing the wearer's skin, and the outer shell is facing away from the wearer's skin.

[0052] The carrier 1 is usually in the shape of a long strip, and the sound outlet and the sound leakage hole are located at the two side end faces of the carrier 1 along the width direction. The carrier 1 can be a flat strip structure, and the carrier 1 can be installed in a specific structure of an electronic device, and the structure can be provided with a first avoidance hole and a second avoidance hole. For example, the specific structure for installing the carrier can be the temple of smart glasses, and the first avoidance hole and the second avoidance hole are respectively provided on the two side end faces of the temple along the width direction. The first avoidance hole can be connected to the sound leakage hole 111a, and the second avoidance hole can be connected to the sound outlet hole 1122, wherein the sound outlet hole and the sound leakage hole are at different distances from the wearer's ear hole, and the sound outlet hole 1122 is usually closer to the user's ear hole.

[0053] Alternatively, if Figure 3 As shown, the second side wall 112 can have an outwardly convex arc segment 1121, and the first shell 11 also has a third side wall 113 connecting the first side wall 111 and the outwardly convex arc segment 1121, and a corner portion is formed between the third side wall 113 and the outwardly convex arc segment 1121, and a corner of the speaker unit 2 can face the corner portion.

[0054] As an example, the position on the temple where the speaker unit 2 is provided is the position close to the ear hole when the user wears the smart glasses. Refer to Figure 12 As shown, the speaker unit 2 can be provided at the position indicated by reference numeral 321. In order to make the sound outlet hole 1122 closer to the human ear for convenient wearing and meet the requirement of wearing comfort, the area near the sound outlet hole 1122 can be designed as a convex arc. Therefore, the carrier 1 needs to be provided with a convex arc section 1121, and the tail of the temple 32 has an inclined section 322 extending downward. When the user wears the smart glasses 3, the convex arc section 1121 is located in front of the user's ear, and the inclined section 322 is located behind the user's ear. The convex arc section 1121 and the inclined section 322 cooperate to avoid the user's ear and limit the cooperation with the user's ear.

[0055] Optionally, as Figure 2 and Figure 3 shown, the first housing 11 may further include a fourth side wall connecting the first side wall 111 and the second side wall 112, and the fourth side wall is opposite to the third side wall 113 in position. One corner of the speaker unit 2 abuts against the convex arc section 1121, and at least one of the two corners of the speaker unit 2 far from the convex arc section 1121 abuts against any one of the second side wall 112 and the fourth side wall, so that the speaker unit 2 can be inclined to the maximum extent.

[0056] In the embodiment of the present application, in order to incline the speaker unit 2 to the maximum extent, when one corner of the speaker unit 2 abuts against the convex arc section 1121, the speaker unit 2 is rotated with this vertex as the center of the circle. When at least one of the two corners of the speaker unit 2 far from the convex arc section 1121 abuts against any one of the second side wall and the fourth side wall, the speaker unit 2 reaches the maximum inclination angle. At this time, the inclination angle of the speaker unit 2 is the largest, or the distance between the air vent hole and the sound leakage hole 111a is the largest.

[0057] In some embodiments of the present disclosure, as Figure 2 shown, a baffle 114 may further be provided in the first housing 11, and the speaker unit 2 can be embedded and fixed inside the baffle 114. The peripheral end surface of the speaker unit 2 is in close contact with the inner side surface of the baffle 114. Restricted by the baffle 114, the speaker unit 2 will not shift or shake, and the assembly structure of the speaker unit 2 has good stability and high reliability.

[0058] In some embodiments of the present disclosure, as Figure 4 、 Figure 5 and Figure 6 shown, the speaker unit 2 divides the internal cavity of the carrier to form a main cavity and a front cavity 13. A baffle rib 1a is provided in the carrier 1, and the baffle rib 1a can divide the main cavity to form a rear cavity 14 and an isolation cavity 15.

[0059] In an electronic device, in order to improve the sound effect of the audio system, it is usually necessary to make the volume of the front cavity and the volume of the rear cavity as close as possible. In addition, the effective areas of the sound outlet hole 1122 and the sound leakage hole 111a are also made as close as possible to significantly improve the isolation degree of the sound field. In the actual design of the carrier 1, the volume of the rear cavity 14 is often larger than the volume of the front cavity 13. In the above embodiment, a part of the space of the baffle rib 1a can be used to separate the rear cavity 14, so that the volume of the rear cavity 14 can be reduced, and the volume of the rear cavity 14 can be made as close as possible to the volume of the front cavity 13. The baffle rib 1a can be as Figure 6 shown, which can divide the main cavity into a rear cavity 14 and an isolation cavity 15 isolated outside the rear cavity.

[0060] Taking the carrier 1 arranged on the temple of the smart glasses as an example, when the width of the temple increases, by controlling the distance from the speaker unit 2 to the position of the effective sound outlet hole 1122 to be basically unchanged, and the distance between the speaker unit 2 and the inner shell of the temple remains unchanged, the volume of the front cavity 13 can be made basically unchanged. Then, after reducing the volume of the rear cavity 14 by setting the above baffle rib, the volumes and volume ratios of the front cavity 13 and the rear cavity 14 can be made as unchanged as possible. The solution disclosed in this embodiment enables the use of the same set of audio algorithms for temples of different sizes, thus reducing the cost of the audio system.

[0061] In some alternative embodiments of the present disclosure, as Figure 5 and Figure 7 shown, the audio system may at least include a first baffle rib. The first baffle rib can be located between the third side wall 113 and the speaker unit 2. The speaker unit 2 is arranged along the first baffle rib, and the speaker unit 2 is close to the first baffle rib. In this embodiment, there is a first baffle rib and an isolation cavity 15 isolated by the first baffle rib between the speaker unit 2 and the third side wall 113. That is, along the length direction of the carrier 1, the speaker unit 2, the first baffle rib and the third side wall 113 can be arranged in sequence.

[0062] In some alternative embodiments of the present disclosure, as Figure 8 shown, the first baffle rib may not be provided on the carrier 1. In this case, the speaker unit 2 is arranged adjacent to the third side wall 113, and the speaker unit 2 is close to the third side wall 113. In this case, there is neither a baffle rib nor an isolation cavity between the speaker unit 2 and the third side wall 113.

[0063] Without affecting the front cavity 13 and the rear cavity 14 of the audio system, the isolation cavity 15 isolated by the first baffle rib in the audio system as Figure 5 or Figure 7 shown can be cut. In the cut sound cavity structure, the first baffle rib can be used as the third side wall, which can reduce the space occupied by the audio system in the electronic device and facilitate the design of other structures in the electronic device. As Figure 5The isolation cavity 15 in it can be cut to obtain a structure as shown in Figure 8 shown. For example, an audio system is disposed in the temple of the smart glasses. After cutting the isolation cavity 15, the audio system can reduce the space it occupies in the temple, making room for other structures of the smart glasses.

[0064] In some embodiments of the present disclosure, as shown in Figure 6 shown, the isolation cavity 15 extends along the thickness direction of the carrier 1, and the extension length of the isolation cavity 15 is greater than the thickness of the speaker unit 2.

[0065] The isolation cavity 15 is characterized in that the distance from the inner side of the first housing 11 to the inner side of the second housing 12 is relatively large, greater than the dimension of the speaker unit 2 in the thickness direction of the carrier 1. When the area on the carrier plane is relatively small, the volume of the rear cavity 14 can be minimized, so that the volumes of the front cavity 13 and the rear cavity 14 are comparable. Providing an isolation space in the carrier 1 can further reduce the weight of the temple and is easy to implement in terms of technology.

[0066] In some embodiments of the present disclosure, as shown in Figure 7 shown, the carrier 1 may have a first housing 11 and a second housing 12. At least one of the first housing 11 and the second housing 12 is provided with a side wall. The side wall includes a first side wall 111 and a second side wall 112. Two ends of the baffle rib 1a are respectively connected to the side wall, and the baffle rib 1a and the side wall enclose to form the isolation cavity 15.

[0067] The baffle rib 1a can be set as a closed ring. The baffle rib 1a can also have its two ends respectively connected to the side wall, and the baffle rib 1a and the side wall enclose to form a closed isolation cavity. By connecting the two ends of the baffle rib 1a to the side wall respectively, the structure can be simplified and the structural strength of the side wall can be increased.

[0068] In some alternative embodiments, in the cross-section in the thickness direction of the carrier 1, the extending direction of the outer edge of the speaker unit 2 is not parallel to the side wall of the carrier 1, as shown in Figure 11 shown. The above-mentioned carrier 1 has a first side wall 111, and the first side wall 111 is provided with a sound leakage hole 111a. The cross-section of the carrier 1 includes the cross-section of the first side wall 111.

[0069] Figure 9 、 Figure 10 and Figure 11Some alternative embodiments of the audio system are shown. The carrier 1 may sequentially include a first housing 11 and a second housing 12 in the thickness direction. The first housing 11 has a first side wall 111 and a second side wall 112. A front cavity 13 is formed between the speaker unit 2 and the first housing 11, and a partial rear cavity 14 is formed between the second housing 12 and the speaker unit 2. One side of the speaker unit 2 close to the sound leakage hole 111a is inclined away from the second housing 12, and one side of the speaker unit 2 close to the sound outlet hole 1122 is inclined towards the second housing 12. It can be understood that the speaker unit 2 of the audio system in this embodiment can be inclined in various ways. For example, the speaker unit 2 and the carrier 1 can be glued at an inclined angle to make the speaker unit 2 inclined.

[0070] In some alternative embodiments, the speaker unit 2 may have a diaphragm, and the side of the speaker unit 2 with the diaphragm can be arranged facing the first housing 11. When the diaphragm is arranged facing the first housing 11, a front cavity 13 can be formed between the speaker unit 2 and the inner wall of the first housing 11.

[0071] The speaker unit 2 can also be inclined in the direction perpendicular to the plane of the carrier 1. After the speaker unit 2 is inclined, there are two beneficial effects: First, the volume of the front cavity 13 is increased, so that the sum of the volumes of the front cavity 13 and the rear cavity 14 is not substantially reduced, and the volumes of the front cavity 13 and the rear cavity 14 are closer, thereby improving the isolation of the audio system; Second, the size of the air flow channel in the front cavity 13 is increased. As Figure 11 shown, the distance between the speaker unit 2 and the second housing 12 near the sound outlet hole is greater than the distance between the speaker unit 2 and the second housing 12 near the sound leakage hole, so that the speaker unit 2 is inclined, and the inclined surface of the speaker unit 2 can also make the air flow smoother.

[0072] In some alternative embodiments of the present disclosure, as Figure 10 shown, inclined steps 115 can be respectively arranged on both sides of the first housing 11 along the length direction of the first side wall 111, and the speaker unit 2 is supported on the inclined steps 115. The inclined steps 115 have a flat support surface, which can stably support the speaker unit and improve the assembly structure stability of the speaker unit.

[0073] The speaker unit 2 can be supported on Figure 10On the inclined steps 115 shown, since the steps at both ends of the carrier 1 are inclined steps (the inclined steps are located on both sides in the length direction of the first side wall 111), the speaker unit 1 can be inclined in the direction perpendicular to the plane of the carrier, further controlling the volumes of the front cavity and the rear cavity to be close while keeping the total volume of the front cavity and the rear cavity unchanged, thereby improving the isolation of the audio system. For example, when the speaker unit 1 is not inclined in the direction perpendicular to the plane of the carrier, the volume ratio of the front cavity 13 to the rear cavity 14 can be 1:1.2, while when the speaker unit is inclined in the direction perpendicular to the plane of the carrier, the volume ratio of the front cavity to the rear cavity is close to 1.1:1.1. In addition, when the speaker unit is inclined, the air flow through the sound leakage hole 111a of the rear cavity can be made smoother, reducing air flow noise. As Figure 11 In the cross-sectional view of the audio system shown, the inclined placement of the speaker unit can increase the volume of the front cavity, and at the same time as Figure 11 shown, the value of a will increase, making the air flow in the front cavity 13 smoother. For the rear cavity 14, the inclined placement of the speaker unit can make the value of b increase, making the air flow in the rear cavity 14 smoother.

[0074] It should be noted that two non-inclined steps 116 can also be provided on the carrier. The two non-inclined steps 116 are spaced apart and are respectively located at both ends of the inclined step 115. The two ends of the speaker unit 2 can be stably supported on the two non-inclined steps 116.

[0075] See Figure 12 shown, in some embodiments of the present disclosure, smart glasses are provided, including: a frame 31, temple arms 32, and at least one of the above audio systems. The audio system can be disposed within the temple arms 32. The carrier of the audio system can be a part of the structure of the temple arms 32. When the temple arms are worn on the user's head, the distance between the sound outlet hole 1122 and the user's ear is usually less than the distance between the sound leakage hole 111a and the user's ear. It should be noted that the audio system can be disposed at Figure 12 the position where the audio system is set as shown by the reference numeral 321, which makes the audio system closer to the user's ear hole when the user wears the smart glasses.

[0076] The first sound wave generated by the front cavity 13 is emitted through the sound outlet hole. The sound outlet hole 1122 is located at a position close to the ear hole. The second sound wave generated by the rear cavity 14 of the speaker is emitted through the sound leakage hole 111a, and the sound leakage hole 111a faces away from the ear hole. The second sound wave is phase-shifted from the first sound wave. For example, the first sound wave and the second sound wave are phase-shifted by 180 degrees. In this way, the first sound wave can be heard by the user, while the second sound wave and the first sound wave will cancel each other out after being superimposed, so that people around the user of the smart glasses cannot hear the sound from the sound outlet hole, protecting the privacy of the user of the smart glasses.

[0077] Optionally, the temple includes a temple body and a latching portion. The temple body is connected to the frame, and the audio system is disposed between the temple body and the latching portion. That is, the position 321 where the audio system is disposed can be between the temple body and the latching portion.

[0078] The position 321 where the audio system is disposed is the part close to the ear hole when the user wears the smart glasses. For the convenience of wearing and making the sound outlet hole closer to the human ear, the area near the sound outlet hole on the audio system can be designed as an outwardly convex arc section, as Figure 12 shown.

[0079] On both sides of the temple in the width direction, there are respectively thickness end faces. The two thickness end faces respectively have a first avoidance hole and a second avoidance hole. When the user wears the smart glasses, the first avoidance hole is far from the human ear, and the second avoidance hole is close to the human ear. The first avoidance hole communicates with the sound leakage hole 111a, and the second avoidance hole communicates with the sound outlet hole 1122.

[0080] In some alternative embodiments, the temple is generally elongated, and the sound outlet hole 1122 and the sound leakage hole 111a are respectively located at the end faces on both sides of the temple in the width direction. The temple is a flat strip structure, and the first avoidance hole and the second avoidance hole are respectively disposed on the end faces on both sides of the temple in the width direction, so that the distances between the first avoidance hole and the second avoidance hole and the user's ear hole are different. The phases of the airflows discharged from the first avoidance hole and the second avoidance hole are opposite (for example, differ by 180 degrees), and they will cancel each other out after superposition. Thus, people at the far end of the smart glasses cannot clearly hear the sound from the sound outlet hole 1122, achieving the purpose of preventing privacy leakage.

[0081] The foregoing description has been presented for purposes of illustration and description. In addition, this description is not intended to limit the embodiments of the present disclosure to the form disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize some of their variations, modifications, changes, additions, and sub - combinations.

Claims

1. An audio system, comprising: A carrier having a first side wall and a second side wall, with sound leakage holes and sound output holes provided on the side walls of the carrier, wherein the sound output holes and the sound leakage holes are respectively used for radiating a first sound wave and a second sound wave outward; A speaker unit disposed within the carrier, the carrier and the speaker unit cooperating to form a front cavity and a rear cavity, the sound leakage holes communicating with the rear cavity, and the sound output holes communicating with the front cavity; Wherein, there is an included angle between the speaker unit and the first side wall, a first end of the speaker unit is close to the first side wall, a second end of the speaker is far from the first side wall, and the first end and the second end are respectively located on opposite sides of the speaker unit.

2. The audio system according to claim 1, wherein, The included angle formed by the first side wall and the side wall of the speaker unit close to the first side wall is α, wherein, 3° < α < 10°.

3. The audio system according to claim 1, wherein The distance between a first side of the speaker unit and the inner surface of the carrier is not less than 0.5 mm, wherein the first side is the side of the speaker unit close to the sound leakage hole and extending along the length direction of the carrier, and the surface where the first side of the speaker unit is located cooperates with the carrier to form the rear cavity.

4. The audio system according to claim 1, wherein, The distance between a second side of the speaker unit and the inner surface of the carrier is not less than 0.4 mm, wherein the second side is the side of the speaker unit close to the sound output hole and extending along the length direction of the carrier, and the surface where the second side of the speaker unit is located cooperates with the carrier to form the front cavity.

5. The audio system according to claim 1, wherein, The sound leakage holes are provided on the first side wall, and the sound output holes are provided on the second side wall.

6. The audio system according to claim 1, wherein At least one of the sound leakage holes is provided on the first side wall, and the sound leakage holes are sequentially spaced along the length direction of the first side wall, and the distance between at least one of the sound leakage holes and the speaker unit is not less than 1.2 mm.

7. The audio system according to claim 1, wherein, The inner length of the first side wall is 2 to 3 times the effective inner length of the sound leakage holes along the direction of the first side wall; The length of the speaker unit is 1.5 to 2.5 times the effective inner length of the sound leakage holes along the direction of the first side wall; The sound leakage holes are provided on the first side wall, and the audio system includes at least two sound leakage holes; The effective inner length of the sound leakage holes along the direction of the first side wall is the sum of the effective inner lengths of the at least two sound leakage holes along the direction of the first side wall.

8. The audio system according to any one of claims 1-7, wherein, The carrier has a first housing and a second housing; The first housing has the first side wall and the second side wall; The first housing and the second housing are snapped together, the front cavity is formed between the speaker unit and the first housing, and the rear cavity is formed among the second housing, the first housing and the speaker unit; Wherein, the second side wall has an outwardly convex arc segment; The first housing further has a third side wall connecting the first side wall and the outwardly convex arc segment; A corner portion is formed between the third side wall and the outwardly convex arc segment; A corner of the speaker unit faces the corner portion.

9. The audio system according to claim 8, wherein, The carrier has a first housing and a second housing; The first housing has the first side wall and the second side wall, and the first side wall and the second side wall are spaced apart and arranged opposite to each other; The first housing further includes a fourth side wall connecting the first side wall and the second side wall. The fourth side wall is opposite to the third side wall. A baffle is provided inside the first housing. The speaker unit is embedded and fixed inside the baffle. The speaker unit is arranged along the third side wall and is close to the third side wall. At least one of the two corners of the speaker unit away from the convex arc segment abuts against any one of the second side wall and the fourth side wall. The first housing and the second housing are snapped together. The speaker unit divides the internal cavity of the carrier into a main cavity and the front cavity. A retaining rib is provided inside the carrier. The two ends of the retaining rib are respectively connected to the side walls. The retaining rib divides the main cavity into the rear cavity and the isolation cavity. The front cavity is formed between the speaker unit and the first housing. The rear cavity is formed among the second housing, the first housing and the speaker unit. The isolation cavity is formed by enclosing the retaining rib and the side walls. The isolation cavity extends along the thickness direction of the carrier. The extension length of the isolation cavity is greater than the thickness of the speaker unit. Wherein, the retaining rib at least includes a first retaining rib located between the third side wall and the speaker unit. The speaker unit is arranged along the first retaining rib and is close to the first retaining rib.

10. An intelligent glasses, characterized in that, Comprising: A spectacle frame and temple arms; At least one audio system according to any one of claims 1-9.

11. The smart glasses according to claim 10, wherein, The speaker unit is arranged on the temple arm so that the speaker unit is close to the user's ear hole when the user wears the smart glasses. The area near the sound outlet hole of the carrier is set as a convex arc segment so that the sound outlet hole is close to the human ear. The tail of the temple arm has an inclined segment extending downward. When the user wears the smart glasses, the convex arc segment and the inclined segment are respectively located on both sides of the user's ear, so that the convex arc segment and the inclined segment cooperate with each other to avoid the user's ear and limit the position of the user's ear.

12. The smart glasses according to claim 10, wherein, The carrier is the temple arm of the smart glasses. The speaker unit is arranged inside the temple arm. The carrier has a first side wall provided with a sound leakage hole and a second side wall provided with a sound outlet hole.

Images