Acoustic device

Abstract

The utility model discloses acoustic equipment, which comprises a host, a sounding device and a connecting device, the host comprises a shell, and a circuit board and a battery are arranged in the shell; the sound production device comprises an ear shell, the ear shell is provided with a first surface and a second surface which are opposite to each other, the first surface is provided with a sound output part which protrudes outwards and is used for corresponding to an ear canal, a sound production unit is arranged in the ear shell, and the sound production unit and the sound output part are oppositely arranged. The acoustic equipment is used for being worn by a consumer, the sounding device can correspond to the ear of the consumer, and the host and the connecting device roughly form an ear hook structure, so that the host can be worn on the back of the ear. The sound output part can be arranged corresponding to the ear canal of a consumer but does not extend into the ear canal of the consumer, compared with an in-ear earplug, the sound production device does not extrude the ear canal of the consumer, the conditions of ear pain, ear itching, otitis media, ear canal deformation and the like are avoided, and the ears of the consumer can be well protected while sound is conducted.

Description

Technical Field

[0001] The utility model relates to the technical field of acoustics, in particular to an acoustic device. Background Art

[0002] The acoustic devices of the related technology usually include an in-ear earplug, which is usually a columnar structure. The in-ear earplug needs to be inserted into the ear canal. If a dynamic iron speaker is used, it needs to be inserted deeper. In-ear, ear canal, deep ear canal and other acoustic devices will cause ear pain, ear itching, and even otitis media and ear canal deformation when worn for a long time, seriously affecting the ear comfort and ear hygiene health of consumers. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an acoustic device.

[0004] The technical solution adopted by the utility model to solve the technical problem is: construct an acoustic device, including a host, a sound-generating device and a connecting device, wherein the connecting device is used to connect the host and the sound-generating device;

[0005] The host comprises a casing, wherein a circuit board and a battery connected to each other are arranged in the casing;

[0006] The sound-generating device comprises an auricle, wherein the auricle has a first surface and a second surface opposite to each other, the first surface is provided with a sound-generating portion protruding outwardly and corresponding to the ear canal, and a sound-generating unit is provided inside the auricle, and the sound-generating unit is arranged opposite to the sound-generating portion.

[0007] In some embodiments, the sound outlet is a boss structure, which is in the shape of a slideway that transitions downwardly from one end to the other end.

[0008] In some embodiments, the sound outlet portion includes at least one sound outlet hole.

[0009] In some embodiments, the sound outlet hole includes at least one of a round hole, a square hole or an arc-shaped hole.

[0010] In some embodiments, the sound-emitting unit includes at least one of a circular speaker, a square speaker, a long waist-shaped speaker, or a multi-unit speaker.

[0011] In some embodiments, the housing is further provided with a power composite key connected to the circuit board.

[0012] In some embodiments, the housing is further provided with a charging unit connected to the battery.

[0013] In some embodiments, the housing is further provided with a microphone connected to the circuit board.

[0014] In some embodiments, the connecting device includes an enclosure and a support body disposed in the enclosure.

[0015] In some embodiments, the connecting device includes a conductor, which is disposed in the enclosure and connects the circuit board and the sound unit.

[0016] The implementation of the utility model has the following beneficial effects: the acoustic device of the present application is used for consumers to wear, the sound-generating device can correspond to the ears of consumers, the host and the connecting device roughly form an ear hook structure, so that the host can be worn behind the ear. The sound-emitting part can be arranged corresponding to the ear canal of the consumer, but does not extend into the ear canal of the consumer. Compared with in-ear earplugs, the sound-generating device will not squeeze the ear canal of the consumer, will not cause ear pain, ear itching, otitis media and ear canal deformation, etc., and can better protect the ears of consumers while transmitting sound. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 It is one of the structural schematic diagrams of the acoustic device in some embodiments of the utility model;

[0019] Figure 2 This is the second structural schematic diagram of the acoustic device in some embodiments of the utility model;

[0020] Figure 3 This is the third structural schematic diagram of the acoustic device in some embodiments of the utility model;

[0021] Figure 4 It is one of the exploded views of the host in some embodiments of the utility model;

[0022] Figure 5 This is the second exploded view of the host in some embodiments of the utility model;

[0023] Figure 6 It is one of the exploded views of the sound-generating device in some embodiments of the utility model;

[0024] Figure 7 This is the second exploded view of the sound-generating device in some embodiments of the utility model;

[0025] Figure 8This is one of the schematic diagrams of the coordination of the host, the sound-generating device and the connecting device in some embodiments of the utility model;

[0026] Fig. 9 This is the second schematic diagram of the coordination of the host, the sound-generating device and the connecting device in some embodiments of the utility model.

[0027] Among them, the marks of the components in the drawings are as follows:

[0028] 10. Host; 11. Casing; 111. First shell; 1111. Mounting hole; 1112. Mounting slot; 1113. Through hole; 112. Second shell; 1121. Switch hole; 12. Circuit board; 121. Power composite key; 13. Battery; 14. Charging column; 15. Magnetic element; 16. Microphone;

[0029] 20. Sound-generating device; 21. Ear shell; 211. First shell; 2111. Sound-emitting part; 212. Second shell; 2121. Tuning hole; 22. Sound-generating unit;

[0030] 30. Connecting device; 31. Enclosure; 32. Support body. DETAILED DESCRIPTION

[0031] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0032] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. 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 the specific circumstances.

[0033] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0034] See also Figures 1 to 3 , the utility model shows an acoustic device, wherein, Figure 1 Mainly displays the outer shape of the acoustic equipment, Figures 2 to 3 The inner shape of the acoustic device is mainly displayed, and the structure of the sound part 2111 is emphasized.

[0035] In some embodiments, the acoustic device may include but is not limited to a hearing aid, a hearing aid, an auxiliary hearing headset, and a headset. The hearing aid includes but is not limited to a behind-the-ear hearing aid and an open hearing aid. The hearing aid includes but is not limited to a behind-the-ear hearing aid and an open hearing aid. The headset includes but is not limited to an auxiliary hearing headset and an open headset. The following will be explained by taking an acoustic device for wearing the left ear as an example. It can be understood that the same applies to an acoustic device for wearing the right ear.

[0036] In some embodiments, the overall structure of the acoustic device may be roughly U-shaped, and its structural form is adapted to the entire external contour of the consumer's ear.

[0037] In some embodiments, the acoustic device may include a host 10, a sound-generating device 20, and a connecting device 30, wherein the connecting device 30 is used to connect the host 10 and the sound-generating device 20. The host 10 includes a housing 11, wherein a circuit board 12 and a battery 13 connected to each other are disposed in the housing 11. The sound-generating device 20 includes an ear shell 21, wherein the ear shell 21 has a first surface and a second surface opposite to each other, wherein the first surface is provided with a sound outlet 2111 protruding outwardly and corresponding to the ear canal, wherein a sound-generating unit 22 is disposed in the ear shell 21, and the sound-generating unit 22 is disposed opposite to the sound outlet 2111.

[0038] The acoustic device of the present application is used to be worn by consumers. The sound-generating device 20 can correspond to the consumer's ear, and the host 10 and the connecting device 30 roughly form an ear hook structure, so that the host 10 can be worn behind the ear.

[0039] The sound output portion 2111 can be arranged corresponding to the consumer's ear canal, but does not extend into the consumer's ear canal. Compared with in-ear earplugs, the sound-generating device 20 will not squeeze the consumer's ear canal, and will not cause ear pain, ear itching, otitis media, and ear canal deformation. It can better protect the consumer's ears while transmitting sound. The consumer described in this application can be a consumer with normal hearing or a consumer with hearing impairment / hearing loss. The hearing impairment here can include but is not limited to mild hearing impairment, moderate hearing impairment, severe hearing impairment, and extremely severe hearing impairment.

[0040] Combination Figure 4 and Figure 5 As shown, in some embodiments, the housing 11 may be a roughly arc-shaped structure, and the width of the end of the housing 11 away from the connecting device 30 may be greater than the width of the end of the housing 11 close to the connecting device 30, so as to fit the back of the ear structure of the consumer. Of course, the housing 11 may also be other structural forms, such as a flat cylindrical structure, a flat elliptical structure, or a flat square structure. The housing 11 may be made of a metal material, a non-metallic material, or a composite material, preferably a material with a lower density, to reduce the burden on the consumer's ears. The side of the housing 11 that fits the back of the consumer's ear is also provided with a skin-friendly layer, and the skin-friendly layer may be made of an existing skin-friendly material to improve the comfort of the consumer.

[0041] The circuit board 12 and the battery 13 may be detachably mounted in the housing 11. For example, the circuit board 12 may be mounted in the housing 11 by threaded connection, snap connection, pressure plate connection, or hot melt installation, and the battery 13 may be mounted in the housing 11 by threaded connection, snap connection, or pressure plate connection, or the battery 13 may be fixed in the housing 11 by an adhesive (such as tape). Of course, there may be a variety of ways to mount the circuit board 12 and the battery 13, and a suitable mounting method may be selected according to actual needs, which is not specifically limited here.

[0042] In some embodiments, the housing 11 is further provided with a power composite key 121 connected to the circuit board 12. The power composite key 121 may be a button switch, a toggle switch or a knob switch.

[0043] When the power compound key 121 uses a push-button switch, the power compound key 121 can also be used to adjust the volume of the acoustic device. For example, pressing it once can start the host 10, pressing it twice can adjust the volume, and pressing it three times can shut down the host 10. The setting is selected according to actual needs and is not specifically limited here.

[0044] When the power compound key 121 adopts a toggle switch, the power compound key 121 can also be used to adjust the volume of the acoustic device. For example, toggling it one level to the left can start the host 10, and toggling it one level to the left again can adjust the volume. When it is toggled to the far left, it can turn off the host 10. Of course, it can also be set to toggle to the right, or toggle clockwise or counterclockwise. The setting is selected according to actual needs and is not specifically limited here.

[0045] When the power composite key 121 is a knob switch, the power composite key 121 can also be used to adjust the volume of the acoustic device. For example, clockwise rotation can increase the volume, counterclockwise rotation can decrease the volume, and when counterclockwise rotation is completed, the acoustic device can be put into a dormant state or turned off. Of course, the power composite key 121 can also be other structural forms, such as a touch switch. In addition, a separate adjustment member can also be provided for adjusting the volume. The adjustment member can include but is not limited to an adjustment wheel, which is not specifically limited here.

[0046] In some embodiments, the housing 11 is further provided with a charging unit 14 connected to the battery 13. The charging unit 14 may include but is not limited to a USB interface or a charging column. The USB interface may include but is not limited to a USB-A interface and a USB-C interface. The charging column may include a positive charging column and a negative charging column.

[0047] Preferably, the charging unit 14 can be a charging column.

[0048] Among them, the two charging posts can be installed on a flexible circuit board, and the flexible circuit board is connected to the circuit board 12 or the battery 13. For example, the two charging posts can be installed on a flexible circuit board, and the flexible circuit board is connected to the circuit board 12, and the circuit board 12 can realize the function of a power board, and the two charging posts are connected to the circuit board 12 through the flexible circuit board, and the circuit board 12 is connected to the battery 13, and the charging and discharging functions can be realized through the circuit board 12. Alternatively, the two charging posts can be installed on a flexible circuit board, and the flexible circuit board is connected to the power board of the battery 13.

[0049] In some embodiments, the housing 11 may also be provided with a magnetic component 15, which may be arranged around the charging unit 14. When the host 10 needs to be charged, for example, the host 10 is installed in a charging box for charging or the host 10 is installed on a charging stand for charging, the magnetic component 15 can use magnetic attraction to make the connection between the host 10 and the charging box or the charging stand more stable, thereby avoiding separation of the host 10 from the charging box or the charging stand due to shaking or vibration, thereby ensuring the charging quality of the acoustic device.

[0050] Furthermore, the number of the magnetic components 15 may be one, two or three. When there is one magnetic component 15, the magnetic component 15 may be arranged on one side of the charging unit 14; when there are two magnetic components 15, the two magnetic components 15 may be arranged on both sides of the charging unit 14; when there are three magnetic components 15, the three magnetic components 15 may be arranged in the circumferential position of the charging unit 14. Of course, the magnetic components 15 may also be other quantities, and their setting positions may also be selected and set according to actual needs, which are not specifically limited here. The magnetic component 15 may include but are not limited to permanent magnets. Of course, in other embodiments, the housing 11 may not be provided with the magnetic component 15.

[0051] In some embodiments, the housing 11 is further provided with a microphone 16 connected to the circuit board 12. The microphone 16 may be a microphone head (such as a silicon microphone head). Alternatively, the microphone 16 may be an electret microphone head. It is understandable that the acoustic device is a device that directly or indirectly collects external sounds through the microphone 16, processes and amplifies them, and then provides them to consumers for use.

[0052] In some embodiments, the housing 11 is further provided with a display light connected to the circuit board 12, and the display light can be used to display the working state of the acoustic device, such as normal working state, sleep state, unstarted state, low power, etc. The display light can be an LED light (such as an RGB lamp bead), which can flash different colors to display different states. Of course, the working state of the acoustic device can also be indicated by voice reminders, such as by sending voice prompts to consumers through the sound unit 22.

[0053] In some embodiments, the housing 11 may include a first shell 111 and a second shell 112, wherein the first shell 111 is a shell that fits or is close to the skin behind the ear of the consumer, and the first shell 111 and the second shell 112 may be detachably connected, for example, by means of threaded connection, snap connection or pressure plate connection. Of course, the housing 11 may also adopt an integrated structure.

[0054] Please also read Figure 5 and Figure 6 The first shell 111 is roughly cylindrical in structure. A mounting hole 1111 may be provided on the first shell 111. The mounting shell is used for the charging unit 14 (such as a charging column) to be exposed therein, or the charging unit 14 may protrude from the mounting hole 1111. When the charging unit 14 includes two charging columns, two mounting holes may be provided. A magnetic component mounting groove 1112 may be provided on the inner wall surface of the first shell 111 at the peripheral position of the mounting hole 1111 for installing the magnetic component 15. The magnetic component 15 may be placed in the magnetic component mounting groove 1112 by interference fit, or may be fixed in the magnetic component mounting groove 1112 by bonding.

[0055] Furthermore, a through hole 1113 may be provided on the circumferential side wall of the first shell 111 to allow a portion of the structure of the microphone 16 to be exposed therein.

[0056] Please also read Figure 4 and Figure 5 In some embodiments, the second shell 112 may be a substantially cylindrical structure, and a switch hole 1121 may be provided on the second shell 112 for the power composite key 121 to be exposed therein, and the switch hole 1121 may be substantially circular.

[0057] In some embodiments, the host 10 may also be provided with wireless receivers and transmitters such as frequency shift FM, Bluetooth, left and right ear communication, and other wireless positioning or measurement sensors.

[0058] See also Figure 7 and Figure 8 As shown, the sound-generating device 20 of the present application is introduced below.

[0059] In some embodiments, the sound-generating device 20 includes an ear shell 21, and a sound outlet 2111 is provided on one side of the ear shell 21. The plane shape (or projection shape) of the sound outlet 2111 is roughly arc-shaped, and the three-dimensional structure is roughly a boss structure. The boss is roughly in the shape of a slideway that transitions downward from one end to the other end (see Figures 2 to 3Preferably, taking the first surface of the ear shell 21 as a reference surface, the height dimension of the highest point of the sound outlet 2111 protruding from the first surface is approximately 1-3 mm, and the height dimension of the lowest point of the sound outlet 2111 protruding from the first surface is approximately 0.5-2.5 mm. For example, the height of the highest point may be 3 mm, and the height dimension of the lowest point may be 1 mm.

[0060] It is understandable that the structure of the sound outlet 2111 can prevent the sound outlet 2111 from extending into the ear canal when the consumer wears the sound-generating device 20. In other embodiments, the sound outlet 2111 can also be defined as a "sound outlet".

[0061] In some embodiments, the sound outlet portion 2111 includes at least one sound outlet hole, and the sound outlet hole includes at least one of a circular hole, a square hole or an arc hole. The circular hole here includes a perfect circular hole and an elliptical hole, and the square hole includes a diamond hole, a square hole, and a rectangular hole. Preferably, the sound outlet portion 2111 is arc-shaped, and the number of sound outlet holes can be at least two, three, four or any number. A protective member 23 is provided at the sound outlet hole. The shape of the protective member 23 is roughly the same as that of the sound outlet hole, which can play a protective role. The protective member 23 can be arranged on the inside or outside of the sound outlet portion 2111, and the protective member 23 can be a protective cover or a protective net. Further, the sound outlet portion 2111 is arranged opposite to the sound unit 22, and the sound unit 22 can include at least one of a circular speaker, a square speaker, a long waist-shaped speaker or a multi-unit speaker, which is not limited here.

[0062] like Figure 6 and Figure 7 As shown, in some embodiments, the sound-emitting device 20 further includes a sound-emitting unit 22, the auricle 21 has an inner cavity, the sound-emitting unit 22 is disposed in the auricle 21, and the inner cavity is divided into a first cavity and a second cavity, the first cavity is opposite to the sound-emitting side of the sound-emitting unit 22, and the second cavity is opposite to the sound-emitting side of the sound-emitting unit 22. The first cavity here may be a cavity close to the ear of the consumer, and the second cavity is a cavity away from the ear of the consumer. The aforementioned sound outlet 2111 may be disposed on the first cavity, and the sound-emitting unit 22 conducts the sound to the ear canal of the consumer through the sound outlet 2111.

[0063] In some embodiments, the ear shell 21 may include a first shell portion 211 and a second shell portion 212. The first shell portion 211 and the second shell portion 212 may both be roughly cylindrical structures, and the two may be detachably connected to facilitate assembly and subsequent maintenance operations.

[0064] In some embodiments, the ear shell 21 may be provided with a plurality of tuning holes 2121, the number of the tuning holes 2121 may be at least two, three, four or any number, and the tuning holes 2121 may be arranged at intervals along the circumference of the ear shell 21 itself. In some embodiments, the tuning holes 2121 may be in the shape of an elongated hole, and the length direction of the elongated hole is parallel to or consistent with the circumferential direction of the ear shell 21. Of course, the shape and size of the tuning hole 2121 may be selected and set according to actual needs, and are not specifically limited here. Preferably, the tuning hole 2121 may be arranged on the second shell portion 212. The tuning hole 2121 may adjust the sound quality.

[0065] Combination Figures 1 to 3 , Figures 8 to 9 As shown, in some embodiments, the host 10, the sound-emitting device 20 and the connecting device 30 can be integrated into a whole in various ways, for example, the host 10, the sound-emitting device 20 and the connecting device 30 are an integrally formed structure, or the host 10, the sound-emitting device 20 and the connecting device 30 are spliced ​​together into a whole, or the host 10 and the connecting device 30, and the sound-emitting device 20 and the connecting device 30 are connected by other connecting structures to form a whole.

[0066] like Figures 8 to 9 As shown, in some embodiments, the connection device 30 may include an enclosure 31 and a support body 32 disposed in the enclosure 31. The connection device 30 may also include a conductor (such as a wire, a transmission line), which is disposed in the enclosure 31 and connects the circuit board 12 and the sound unit 22 to transmit relevant signals or instructions.

[0067] The enclosure 31 is an insulating enclosure, for example, a silicone enclosure or a rubber enclosure. The support 32 can be a metal or non-metal wire that is bendable and can maintain bending deformation, that is, the support 32 can be a bendable metal or non-metal wire or a shape memory material wire. Preferably, the support 32 can include but is not limited to titanium wire, nickel-titanium alloy wire, manganese steel wire, and its diameter is 0.5-0.9mm, for example, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm. Of course, the support 32 can also be a steel wire, or a material with a certain elastic plasticity.

[0068] The cross-sectional shapes of the inclusion body 31 and the support body 32 include but are not limited to circular, square, and rectangular.

[0069] In the preparation process, the support body 32 and the conductor may be bonded together first, and then a thermoplastic material such as liquid silicone may be injected into the mold to form the inclusion body 31 around the support body 32 .

[0070] It is understandable that during the wearing process, the consumer can adjust the connecting device 30 to achieve the requirement of stable and relatively comfortable wearing.

[0071] For example Figure 8 and Fig. 9 As shown, in some embodiments, one end of the enclosure 31 may be connected to the first mounting shell 40 , and the other end of the enclosure 31 may be connected to the second mounting shell 50 .

[0072] The first mounting shell 40 is generally cylindrical and can be used to accommodate the host 10. The first mounting shell 40 can be provided with a first hole 41 and a second hole 42. The first hole 41 is arranged corresponding to the switch hole 1121, and the structure, shape and size of the two are adapted. The second hole 42 is arranged corresponding to the through hole 1113, and the structure, shape and size of the two are adapted.

[0073] The second installation shell 50 is generally cylindrical and can be used to accommodate the sound device 20. The second installation shell 50 can be provided with a third hole 51. The third hole 51 is arranged corresponding to the sound outlet 2111, and the structure, shape and size of the two are adapted.

[0074] The first mounting shell 40 and / or the second mounting shell 50 may be made of skin-friendly materials such as silicone, which fits the user's skin more comfortably.

[0075] Of course, in some embodiments, the first mounting shell 40 and / or the second mounting shell 50 may not be provided.

[0076] In other embodiments, connectors may be provided at both ends of the connection device 30 so that the host 10 and the sound-generating device 20 can be detachably connected.

[0077] In other embodiments, the host 10 of the connection device 30 can be connected to a control box through a wire, and the product can be controlled by the control box or the left and right ears can be connected by wearing a neckband.

[0078] In other embodiments, the connecting device 30 includes but is not limited to a ring-neck hanging ear structure or a clamping ear structure.

[0079] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. An acoustic device, characterized in that: It comprises a host (10), a sound-generating device (20) and a connecting device (30), wherein the connecting device (30) is used to connect the host (10) and the sound-generating device (20); The host (10) comprises a housing (11), wherein a circuit board (12) and a battery (13) which are connected to each other are arranged in the housing (11); The sound-generating device (20) comprises an auricle (21), wherein the auricle (21) has a first surface and a second surface opposite to each other, wherein the first surface is provided with a sound-generating portion (2111) protruding outwards and corresponding to the ear canal, and wherein a sound-generating unit (22) is provided inside the auricle (21), wherein the sound-generating unit (22) is arranged opposite to the sound-generating portion (2111).

2. The acoustic device according to claim 1, characterized in that The sound outlet (2111) is a boss structure, which is in the shape of a slideway that transitions downwardly from one end to the other end.

3. The acoustic device according to claim 2, characterized in that The sound outlet portion (2111) includes at least one sound outlet hole.

4. The acoustic device according to claim 3, characterized in that The sound outlet hole includes at least one of a round hole, a square hole or an arc hole.

5. The acoustic device according to claim 1, characterized in that The sound-generating unit (22) comprises at least one of a circular speaker, a square speaker, a long waist-shaped speaker or a multi-unit speaker.

6. The acoustic device according to any one of claims 1 to 5, characterized in that: The housing (11) is also provided with a power composite key (121) connected to the circuit board (12).

7. The acoustic device according to any one of claims 1 to 5, characterized in that: The housing (11) is also provided with a charging unit (14) connected to the battery (13).

8. The acoustic device according to any one of claims 1 to 5, characterized in that: The housing (11) is also provided with a microphone (16) connected to the circuit board (12).

9. The acoustic device according to claim 1, characterized in that The connecting device (30) comprises an enclosure (31) and a support body (32) disposed inside the enclosure (31).

10. The acoustic device according to claim 9, characterized in that The connecting device (30) comprises a conductor, the conductor is arranged in the enclosure (31) and the conductor connects the circuit board (12) and the sound generating unit (22).

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