Wearable devices

Abstract

The present disclosure embodiment discloses a wearable device. The specific implementation method is as follows: the wearable device includes a carrier, a first audio component and a second audio component. The carrier includes a first waveguide and a second waveguide, the first audio component includes a first speaker and a first shell, the first speaker is arranged in the first shell, and the first front cavity and the first rear cavity of the first speaker are formed by the first shell, the first shell is connected to the carrier, or constitutes a part of the carrier, the second audio component includes a second speaker and a second shell, the second speaker is arranged in the second shell, and the second front cavity and the second rear cavity of the second speaker are formed by the second shell, the second shell is connected to the carrier, or constitutes a part of the carrier, wherein one end of the first waveguide is coupled to the second rear cavity, and the other end of the first waveguide is close to the first front cavity; one end of the second waveguide is coupled to the first rear cavity, and the other end of the second waveguide is close to the second front cavity.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic equipment, and in particular to a wearable device. Background Art

[0002] Wearable devices are usually equipped with two sets of audio components. When a user wears the wearable device, the two sets of audio components are located at the user's two ears. Due to space limitations, the audio components of wearable devices are not large enough to install large-sized speakers, and often lack low-frequency sound effects. Utility Model Content

[0003] An embodiment of the present disclosure provides a wearable device.

[0004] To achieve the above objectives, the present disclosure provides the following technical solutions:

[0005] A wearable device comprises: a carrier, a first audio component and a second audio component, the carrier is used to be worn on a human head, the carrier comprises: a first waveguide and a second waveguide, the first audio component comprises a first speaker and a first shell, the first speaker is arranged in the first shell, and the first shell forms a first front cavity and a first rear cavity of the first speaker; the first shell is connected to the carrier, or constitutes a part of the carrier, the second audio component comprises a second speaker and a second shell, the second speaker is arranged in the second shell, and the second shell forms a second front cavity and a second rear cavity of the second speaker; the second shell is connected to the carrier, or constitutes a part of the carrier, one end of the first waveguide is coupled to the second rear cavity, and the other end of the first waveguide is close to the first front cavity; one end of the second waveguide is coupled to the first rear cavity, and the other end of the second waveguide is close to the second front cavity, wherein the first speaker and the second speaker are driven in phase so that the first front cavity and the second front cavity radiate a first sound wave outward, and the second sound waves radiated by the first rear cavity and the second rear cavity are radiated outward via the second waveguide and the first waveguide respectively, so that at least part of the first sound wave is enhanced.

[0006] The technical solution of the present disclosure is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0008] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0009] Figure 1 A schematic diagram of an exploded structure of a wearable device provided in some embodiments of the present disclosure is shown;

[0010] Figure 2A partial structural schematic diagram of a wearable device provided by some embodiments of the present disclosure is shown;

[0011] Figure 3 A cross-sectional view showing the matching structure of a wearable device and an audio component provided by some embodiments of the present disclosure;

[0012] Figure 4 A front view of a wearable device provided by some embodiments of the present disclosure is shown;

[0013] Figure 5 A cross-sectional view of a wearable device provided by some embodiments of the present disclosure is shown;

[0014] Figure 6 A bottom view of a wearable device provided by some embodiments of the present disclosure is shown;

[0015] Figure 7 The figure shows the sensitivity curve of the wearable device provided by some embodiments of the present disclosure.

[0016] In the figure, 1. first audio component; 11. first speaker; 12. first shell; 121. first front cavity; 122. first rear cavity; 124. first sound leakage hole; 2. second audio component; 3. first waveguide; 31. temple section; 32. frame section; 4. second waveguide; 5. carrier; 51. temple; 511. first accommodating cavity; 512. first avoidance hole; 513. second avoidance hole; 514. sound leakage cavity; 52. frame; 521. upper crossbeam; 522. arc-shaped frame body.

[0017] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. The following embodiments are used to illustrate the present disclosure but are not used to limit the scope of the present disclosure.

[0019] In the description of the present disclosure, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0020] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0021] Some embodiments of the present disclosure provide a wearable device, including: a carrier 5, a first audio component 1 and a second audio component 2. The carrier 5 is used to be worn on a human head. The carrier 5 can be a bracket of glasses, earphones or other structures, and can be stably worn on a human head. The first audio component 1 and the second audio component 2 are both arranged on the carrier 5, and the first audio component 1 and the second audio component 2 are arranged at intervals. When a user wears the wearable device, the first audio component 1 and the second audio component 2 are respectively located at the user's ears.

[0022] In some embodiments of the present disclosure, the first audio component 1 and the second audio component 2 both have a speaker and a housing, the speaker is disposed in the housing, the housing forms a front cavity and a rear cavity of the speaker, and the speaker can radiate sound waves outward after being driven. Optionally, the housing is connected to the carrier 5; or, the housing constitutes a part of the carrier 5; or, a part of the housing constitutes a part of the carrier 5, and another part of the housing is connected to the carrier 5.

[0023] Figure 1 An exploded view of a wearable device provided by some embodiments of the present disclosure is shown. Figure 3 1 shows a cross-sectional view of a partial structure of a wearable device provided by an embodiment of the present disclosure. In some embodiments of the present disclosure, such as Figure 1 , Figure 3 As shown, the carrier 5 of the wearable device includes a first waveguide 3 and a second waveguide 4, the first audio component 1 has a first front cavity 121 and a first rear cavity 122, the second audio component 2 has a second front cavity and a second rear cavity, one end of the first waveguide 3 is coupled to the second rear cavity, and the other end of the first waveguide 3 is close to the first front cavity 121, one end of the second waveguide 4 is coupled to the first rear cavity 122, and the other end of the second waveguide 4 is close to the second front cavity. When the speakers of the audio components on both sides are driven in phase, the sound waves radiated from the first rear cavity 122 are superimposed on the sound waves radiated from the second front cavity after passing through the second waveguide 4, and the sound waves radiated from the second rear cavity are superimposed on the sound waves radiated from the first front cavity 121 after passing through the first waveguide 3.

[0024] In some optional embodiments, the first audio component 1 includes a first speaker 11 and a first shell 12, the first speaker 11 is arranged in the first shell 12, and the first shell 12 forms a first front cavity 121 and a first rear cavity 122 of the first speaker 11; the first shell 12 is connected to the carrier 5, or constitutes a part of the carrier 5. The second audio component 2 includes a second speaker and a second shell, the second speaker is arranged in the second shell, and the second front cavity and the second rear cavity of the second speaker are formed by the second shell; the second shell is connected to the carrier 5, or constitutes a part of the carrier 5, wherein one end of the first waveguide 3 is coupled to the second rear cavity, and the other end of the first waveguide 3 is close to the first front cavity 121, one end of the second waveguide 4 is coupled to the first rear cavity 122, and the other end of the second waveguide 4 is close to the second front cavity, the first speaker 11 and the second speaker are driven in phase, so that the first front cavity 121 and the second front cavity radiate the first sound wave outward, and the second sound waves radiated by the first rear cavity 122 and the second rear cavity are radiated outward via the second waveguide 4 and the first waveguide 3 respectively, so that at least part of the first sound wave is enhanced.

[0025] When the first speaker 11 and the second speaker are input with the same audio signal (i.e., the same sound source), the first sound waves radiated by the first front cavity 121 and the second front cavity are in phase, while the second sound waves radiated by the first rear cavity 122 and the second rear cavity are in phase opposite to the first sound waves radiated by the first front cavity 121 and the second front cavity. After the second sound wave is delayed by the waveguide (i.e., the delayed wave), the phase of at least part of the frequency band in the first sound wave (i.e., the non-delayed wave) is consistent. In this way, the sound pressure of part of the frequency band in the first sound wave can be enhanced.

[0026] Optionally, after the second sound waves radiated by the first rear cavity 122 and the second rear cavity are delayed by the waveguide, the sound pressure of the low-frequency part of the first sound waves radiated by the first front cavity 121 and the second is enhanced, thereby achieving a full and powerful bass effect.

[0027] In some optional embodiments, the first waveguide 3 and the second waveguide 4 may be waveguides, and the waveguides have channels inside for conducting airflow.

[0028] In some embodiments of the present disclosure, the lengths of the first waveguide 3 and the second waveguide 4 may be determined as follows:

[0029] The sound pressure amplitude P after the delayed wave and the undelayed wave from the same sound source are superimposed 总 The calculation formula is as follows:

[0030] P 总 =2×P0×sin(2×π×f×L / (V×2));

[0031] Where P0 is the sound pressure amplitude of a single speaker, f is the sound source frequency, L is the difference in the length of the transmission path of the sound waves emitted by the two speakers, and V is the speed of sound. Since the path in the sound cavity (front cavity and rear cavity) is approximately equal to 1 / 40-1 / 100 of the length of the waveguide, it can be ignored. The difference in the length of the transmission path of the sound waves emitted by the two speakers can be basically equivalent to the length of a single waveguide. When P 总 When >P0, it can be considered that the amplitude of the superimposed sound pressure is larger than the original amplitude.

[0032] Some embodiments of the present disclosure provide a correspondence between superposition frequency, waveguide length, lower limit frequency and upper limit frequency, as shown in the table below.

[0033] Superposition frequency (Hz) Waveguide length(m) Lower frequency limit (Hz) Upper frequency limit (Hz) 609 0.279 202 1011 435 0.39 145 726 200 0.85 67 333 800 0.213 267 1333

[0034] In some embodiments of the present disclosure, the first waveguide 3 and the second waveguide 4 extend along the carrier 5. Optionally, the first waveguide 3 and the second waveguide 4 are at least partially located inside the carrier and extend along the carrier 5. And the lengths of the first waveguide 3 and the second waveguide 4 are both greater than or equal to 20 cm and less than or equal to 60 cm, so that the sound pressure of the first sound wave in the range of 300 Hz to 800 Hz is enhanced, thereby enhancing the sound effect in the low-frequency range.

[0035] In some embodiments of the present disclosure, in order to ensure the audio effect, the size of the first waveguide 3 and the second waveguide 4 is designed so that the airflow velocity in the first waveguide 3 and the second waveguide 4 is less than or equal to 30 m / s. The airflow velocity in the waveguide is related to the effective radiation area of ​​the speaker and the size of the channel in the waveguide. Optionally, for a selected speaker, the airflow velocity can be controlled by designing the cross-sectional area of ​​the channel in the waveguide.

[0036] Some embodiments of the present disclosure provide a correspondence between the effective radiation area of ​​a speaker and the cross-sectional area of ​​a waveguide channel, as shown in the table below.

[0037] Speaker effective radiation area-Sd Channel area lower limit Upper limit of channel area <![CDATA[100mm 2 ]]> <![CDATA[5mm 2 ]]> <![CDATA[10mm 2 ]]> <![CDATA[450mm 2 ]]> <![CDATA[38mm 2 ]]> <![CDATA[95mm 2 ]]>

[0038] Figure 7 shows a sensitivity curve of an audio component of a wearable device provided by some embodiments of the present disclosure, Figure 7 The length of the waveguide of the wearable device is 0.39m and the cross-sectional area is 9.6mm. 2 The vertical axis is the sound pressure level in dB, and the horizontal axis is the frequency in Hz. Figure 7 It can be clearly seen that after superposition, the low-frequency effect of wearable devices has been significantly improved.

[0039] In some optional embodiments, the cross-section of the channel inside the first waveguide 3 and the second waveguide 4 can be circular, rectangular, racetrack-shaped, etc. The channel has a smooth path without sharp corners, which can avoid sound wave reflection.

[0040] In some optional embodiments, see Figure 1 and Figure 3 As shown, the audio component includes a first shell 12 and a second shell, both of which are connected to the carrier 5. The first shell 12 has a first sound outlet and a first sound leakage hole 124. The first sound outlet is connected to the first front cavity 121, and the first front cavity 121 radiates sound waves outward through the first sound outlet; the first sound leakage hole 124 is connected to the first rear cavity 122. The second shell has a second sound outlet and a second sound leakage hole, the second sound outlet is connected to the second front cavity, and the second front cavity radiates sound waves outward through the second sound outlet; the second sound leakage hole is connected to the second rear cavity. Among them, the first waveguide 3 is connected to the first sound outlet and the second sound leakage hole, and the second waveguide 4 is connected to the second sound outlet and the first sound leakage hole 124.

[0041] The sound inlet hole of the first waveguide 3 can be connected to the second sound leakage hole on the second shell. The first sound wave radiated by the second sound leakage hole of the second shell will be radiated along the channel inside the first waveguide 3 to the first sound outlet hole of the first shell 12. The sound outlet hole of the first waveguide 3 is close to the sound outlet hole of the first shell 12. The first waveguide 3 delays the phase of the low-frequency part of the sound wave radiated by the second rear cavity of the second speaker to make it consistent with the phase of the low-frequency part of the sound wave radiated by the first front cavity 121 of the first speaker 11, thereby achieving the effect of sound pressure superposition. Similarly, the sound inlet of the second waveguide 4 can be connected to the first sound leakage hole 124 on the first shell 12. The second sound wave radiated by the first sound leakage hole 124 of the first shell 12 will radiate along the channel inside the second waveguide 4 to the second sound outlet hole of the second shell. The sound outlet hole of the second waveguide 4 is close to the sound outlet hole of the second shell. The second waveguide 4 delays the phase of the low-frequency part of the sound wave radiated by the first rear cavity 122 of the first speaker 11 so that it is consistent with the phase of the low-frequency part of the sound wave radiated by the second front cavity of the second speaker, thereby achieving the effect of sound pressure superposition. One ear of the user wearing the wearable device can hear the sound waves radiated by the first front cavity of the first speaker 11 and the second rear cavity of the second speaker, and the other ear of the user can hear the sound waves radiated by the second front cavity of the second speaker and the first rear cavity of the first speaker 11.

[0042] In some optional embodiments, the first shell 12 and the second shell may both constitute part of the carrier 5, the first shell 12 has a first sound outlet hole, and the second shell has a second sound outlet hole; the first waveguide 3 connects the first sound outlet hole and the second rear cavity, and the second waveguide 4 connects the second sound outlet hole and the first rear cavity 122.

[0043] In some embodiments of the present disclosure, the speaker unit may not be provided with a dedicated shell, but a cavity for accommodating the speaker is formed by a structure on the carrier 5. For example, the carrier 5, the first shell 12 and the second shell may be an integral part, and the first shell 12 and the second shell are both local structures of the carrier 5 and cannot be separated from the carrier 5.

[0044] In some optional embodiments, Figure 6 FIG. 1 shows a bottom view of a wearable device provided by some embodiments of the present disclosure. Figure 3 and Figure 6 As shown, the carrier 5 has a first avoidance hole 512 connected to the first sound outlet hole and a second avoidance hole 513 connected to the second sound outlet hole, the first waveguide 3 is connected to the first avoidance hole 512 , and the second waveguide 4 is connected to the second avoidance hole 513 .

[0045] The sound waves radiated from the first sound outlet can be smoothly radiated to the outside through the first avoidance hole 512, and the sound waves radiated from the second sound outlet can be smoothly radiated to the outside through the second avoidance hole 513. The first sound outlet is located on the first shell 12, and the first avoidance hole 512 is located on the carrier 5.

[0046] In some embodiments of the present disclosure, the first shell 12 is detachably disposed on the carrier 5, and the first waveguide 3 is disposed outside the first shell 12 and connected to the first sound outlet hole of the first shell 12 and the first avoidance hole 512 on the carrier 5. Even if the first shell 12 needs to be removed or installed, it will not interfere with the first waveguide 3, thereby simplifying the structure of the wearable device and facilitating the replacement or maintenance of the audio component. Similarly, the second waveguide 4 is disposed outside the second shell and connected to the second sound outlet hole of the second shell and the second avoidance hole 513 on the carrier 5.

[0047] In some embodiments of the present disclosure, the first waveguide 3 and the second waveguide 4 may constitute a part of the structure of the carrier 5. Optionally, the carrier 5, the first waveguide 3 and the second waveguide 4 are an integral structure formed by injection molding. The first waveguide 3 and the second waveguide 4 may also be independent structural parts, and the first waveguide 3 and the second waveguide 4 may be installed in the carrier 5.

[0048] Figure 2 A partial structural diagram of a wearable device provided by some embodiments of the present disclosure is shown. In some optional embodiments, a first connecting hole is provided on the hole wall of the first avoidance hole 512, and the first connecting hole is connected to the first waveguide 3, and a second connecting hole is provided on the hole wall of the second avoidance hole 513, and the second connecting hole is connected to the second waveguide 4.

[0049] The first avoidance hole 512 and the second avoidance hole 513 may have a certain extension length, and the size may be sufficient to open corresponding connecting holes on the hole wall. The extension direction of one end of the sound outlet of the first waveguide 3 is roughly perpendicular to the extension direction of the second avoidance hole 513. The sound waves radiated by the second rear cavity in the first waveguide 3 will be released by the sound outlet of the first waveguide 3, thereby superimposing the sound waves radiated by the first sound outlet at the first avoidance hole 512. Similarly, the extension direction of one end of the sound outlet of the second waveguide 4 is roughly perpendicular to the extension direction of the second avoidance hole. The sound waves radiated by the first rear cavity in the second waveguide 4 will be released by the sound outlet of the second waveguide 4, thereby superimposing the sound waves radiated by the second sound outlet at the second avoidance hole 513.

[0050] In some embodiments of the present disclosure, Figure 2 and Figure 3 As shown, the carrier 5 can be provided with a first accommodating cavity 511 and a second accommodating cavity, the first audio component 1 is loaded into the first accommodating cavity 511, the first audio component 1 and the inner wall of the first accommodating cavity 511 form a first sound leakage cavity 514, the first sound leakage cavity 514 is connected to the first sound leakage hole 124, and the sound inlet hole of the channel of the second waveguide 4 is directly connected to the first sound leakage cavity 514. The first sound leakage hole 124 first radiates sound waves to the first sound leakage cavity 514, and part of the sound waves will enter the sound inlet hole of the second waveguide 4 and reach the side of the second avoidance hole 513 along the second waveguide 4. Similarly, the second audio component 2 is loaded into the second accommodating cavity, the second audio component 2 and the inner wall of the second accommodating cavity form a second sound leakage cavity, the second sound leakage cavity is connected to the second sound leakage hole, and the sound inlet hole of the channel of the first waveguide 3 is directly connected to the second sound leakage cavity. The second sound leakage hole first radiates sound waves to the second sound leakage cavity, and part of the sound waves will enter the sound inlet hole of the first waveguide 3 and reach the side of the first avoidance hole 512 along the first waveguide 3.

[0051] In some optional embodiments, the first waveguide 3 and the second waveguide 4 are arranged in any of the following ways:

[0052] In the first arrangement, at least one of the first waveguide 3 and the second waveguide 4 includes a waveguide, which is disposed in the carrier 5. The waveguide has a channel inside. The waveguide may be an independent component, and the waveguide may be connected or limited to the carrier 5 by a snap-on method or by a fastener. A guide groove may be preset on the carrier 5, and the waveguide may be directly embedded in the guide groove and extend along the guide groove. The waveguide is limited in the guide groove and will not easily escape from the guide groove.

[0053] In the second configuration, at least one of the first waveguide 3 and the second waveguide 4 is integrally formed with the carrier 5. That is, the carrier 5, the first waveguide 3 and the second waveguide 4 are an integral structure formed by injection molding. The waveguide and the carrier 5 may be made of the same material, or the waveguide and the carrier 5 may be made of different materials.

[0054] Figure 4 A front view of a wearable device provided by some embodiments of the present disclosure is shown. Figure 5 A cross-sectional view of a wearable device provided by some embodiments of the present disclosure is shown. The carrier 5 may be glasses, including a frame 52 and two temples 51 connected to the frame 52, the first audio component 1 and the second audio component 2 are respectively arranged on the two temples 51, and the first waveguide 3 and the second waveguide 4 are sequentially extended through one temple 51, the frame 52 and the other temple 51. When the user wears the carrier 5, the two temples 51 are respectively located on both sides of the user's head, and the first audio component 1 and the second audio component 2 on the two temples 51 are respectively close to the user's ears.

[0055] In some embodiments of the present disclosure, see Figure 6 As shown, the two temples 51 are respectively provided with a first avoidance hole 512 and a second avoidance hole 513. The first avoidance hole 512 is located above the user's left ear and faces the user's left ear, and the second avoidance hole 513 is located above the user's right ear and faces the right ear.

[0056] In some optional embodiments, see Figure 2 As shown, the first waveguide 3 and the second waveguide 4 include a temple segment 31, a frame segment 32 and a flexible transition segment. The temple segment 31 is arranged in the temple 51, the frame segment 32 is arranged in the frame 52, and the flexible transition segment connects the temple segment 31 and the frame segment 32 respectively.

[0057] In an optional embodiment, the mirror frame 52 and the temple 51 can be rotatably connected, the waveguide extends through the mirror frame 52 and the temple 51, and the waveguide is provided with a flexible transition section at the position between the mirror frame 52 and the temple 51, and the flexible transition section has a certain deformation ability. In the process of folding the temple 51, the flexible transition section is further bent and deformed, but the internal channel of the flexible transition section remains in a conductive state and is not blocked by the fold. The temple section 31 and the frame section 32 can be a hard structure or a flexible structure, and the temple section 31 can be integrally formed with the temple 51, or can be limitedly matched with the temple 51 through a limiting structure. The frame section 32 can be integrally formed with the frame 52, or can be limitedly matched with the frame 52 through a limiting structure. The flexible transition section can be integrally formed with the temple section 31 or the frame section 32, and the flexible transition section can also be an independent structural member, the material of which is different from that of the temple section 31 and the frame section 32, but can be connected to the temple section 31 and the frame section 32 respectively.

[0058] like Figure 4 and Figure 5As shown, the mirror frame 52 includes an upper crossbeam 521 and two arc-shaped mirror frame bodies 522, both of which are connected to the upper crossbeam 521. The arc-shaped mirror frame body 522 is roughly a C-shaped structure, and both ends of the arc-shaped mirror frame body 522 are respectively connected to the upper crossbeam 521. The mirror frame section 32 is located in the upper crossbeam 521 and extends along the length direction of the upper crossbeam 521. The upper crossbeam 521 extends roughly in a straight line, which can facilitate the layout of the mirror frame section 32. The mirror frame section 32 will not bend and extend excessively. The internal channel of the mirror frame section 32 is smooth and has no corners, which is conducive to the propagation of sound waves and avoids sound wave reflection.

[0059] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present disclosure to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A wearable device, characterized in that: include: A carrier, the carrier is used to be worn on a human head, the carrier comprising: a first waveguide and a second waveguide; a first audio component, the first audio component comprising a first speaker and a first housing, the first speaker being disposed in the first housing, the first housing forming a first front cavity and a first rear cavity of the first speaker; the first housing being connected to the carrier or constituting a part of the carrier; a second audio component, the second audio component comprising a second speaker and a second shell, the second speaker being disposed in the second shell, the second shell forming a second front cavity and a second rear cavity of the second speaker; the second shell being connected to the carrier, or constituting a part of the carrier; One end of the first waveguide is coupled to the second rear cavity, and the other end of the first waveguide is close to the first front cavity; one end of the second waveguide is coupled to the first rear cavity, and the other end of the second waveguide is close to the second front cavity; The first speaker and the second speaker are driven in phase so that the first front cavity and the second front cavity radiate a first sound wave outward, and the second sound waves radiated by the first rear cavity and the second rear cavity are radiated outward via the second waveguide and the first waveguide respectively, so that at least part of the first sound wave is enhanced.

2. The wearable device according to claim 1, wherein: The first waveguide and the second waveguide extend along the carrier, the lengths of the first waveguide and the second waveguide are both greater than or equal to 20 cm and less than or equal to 60 cm, and the first waveguide and the second waveguide enhance the first sound wave in the range of 300 Hz to 800 Hz.

3. The wearable device according to claim 1, wherein: The dimensions of the first waveguide and the second waveguide are designed so that the air flow velocities in the first waveguide and the second waveguide are both less than or equal to 30 m / s.

4. The wearable device according to claim 1, wherein: The first shell and the second shell are both connected to the carrier; The first shell has a first sound outlet hole and a first sound leakage hole, the first sound outlet hole is connected to the first front cavity, and the first front cavity radiates sound waves outward through the first sound outlet hole; the first sound leakage hole is connected to the first rear cavity; The second shell has a second sound outlet hole and a second sound leakage hole, the second sound outlet hole is connected to the second front cavity, and the second front cavity radiates sound waves outward through the second sound outlet hole; the second sound leakage hole is connected to the second rear cavity; The first waveguide is connected to the first sound outlet hole and the second sound leakage hole, and the second waveguide is connected to the second sound outlet hole and the first sound leakage hole.

5. The wearable device according to claim 1, wherein: The first shell and the second shell both constitute a part of the carrier; the first shell has a first sound outlet hole, and the second shell has a second sound outlet hole; the first waveguide connects the first sound outlet hole and the second rear cavity, and the second waveguide connects the second sound outlet hole and the first rear cavity.

6. The wearable device according to claim 4, wherein: The carrier has a first avoidance hole connected to the first sound outlet hole and a second avoidance hole connected to the second sound outlet hole; The first waveguide is connected to the first avoidance hole, and the second waveguide is connected to the second avoidance hole.

7. The wearable device according to claim 6, wherein: A first connecting hole is provided on the hole wall of the first avoiding hole, and the first connecting hole is connected to the first waveguide; A second connecting hole is arranged on the hole wall of the second avoidance hole, and the second connecting hole is connected to the second waveguide.

8. The wearable device according to claim 1, wherein: The first waveguide and the second waveguide are arranged in any of the following ways: At least one of the first waveguide and the second waveguide comprises a waveguide, and the waveguide is disposed in the carrier; At least one of the first waveguide and the second waveguide is integrally formed with the carrier.

9. The wearable device according to any one of claims 1 to 8, wherein: The carrier includes a frame and two temples connected to the frame; The first audio component and the second audio component are respectively arranged on the two temples; the first waveguide and the second waveguide both extend through one temple, the frame and the other temple in sequence.

10. The wearable device according to claim 9, wherein: The first waveguide and the second waveguide include a temple section, a frame section and a flexible transition section; The temple section is arranged in the temple, the frame section is arranged in the frame, and the flexible transition section connects the temple section and the frame section respectively.

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