CN113573182A

CN113573182A - Audio equipment and wearing equipment

Info

Publication number: CN113573182A
Application number: CN202110833494.1A
Authority: CN
Inventors: 王承谦; 李德华; 李欣; 李金玉; 姜滨
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2021-10-29
Anticipated expiration: 2041-07-22
Also published as: CN113573182B

Abstract

The invention discloses audio equipment and wearing equipment, wherein the audio equipment comprises a shell, a sounding monomer and a bass tube, the shell is provided with an installation cavity, a sounding hole and a balance hole, the sounding monomer is communicated with the installation cavity, the sounding monomer is arranged in the installation cavity and corresponds to the sounding hole, the sounding monomer is provided with a rear sound hole communicated with the installation cavity, the bass tube is arranged in the installation cavity, one end of the bass tube is arranged corresponding to the rear sound hole, and the other end of the bass tube is communicated with the balance hole. The invention aims to provide portable and easy-to-use audio equipment, which not only improves the bass effect, but also reduces the resonance interference, greatly reduces the distortion and effectively improves the tone quality when the audio equipment plays music.

Description

Audio equipment and wearing equipment

Technical Field

The invention relates to the technical field of audio playing equipment, in particular to audio equipment and wearing equipment applying the same.

Background

The development of science and technology is changing day by day, and particularly, consumer electronic products are all rapidly advanced; this is mainly due to the greatly increased requirements of people for quality of life. People no longer just satisfy the realization of multiple functions, and in the daily life and work at the current fast pace, people are increasingly pursuing the experience of portability, usability, comfort and the like of products.

Because the wrist strap products in the wearable device, such as watches, have portability and talking performance, there is a trend that the wrist strap products can replace mobile phones. At present, communication watch products almost only pay attention to the communication effect, but do not pay attention to the fact that a wearer can enjoy music through a watch during running and other sports, and therefore the watch is required to have high tone quality performance.

Generally, a large-size loudspeaker single body is adopted in a mobile phone to achieve good tone quality experience, but a watch is different from mobile phone products and can have a large enough internal space to accommodate a large-size loudspeaker, and the larger the size of a loudspeaker body is, the better the tone quality of a low frequency band of the product is; the larger the volume of the sound cavity behind the loudspeaker is, the better the sound quality of the low frequency band of the product is. Therefore, in the related art, there are bass effects in the wrist band products in the wearable device and the problem of resonance interference, resulting in sound distortion, so that the sound quality effect is poor.

Disclosure of Invention

The invention mainly aims to provide audio equipment and wearing equipment, and aims to provide portable and easy-to-use audio equipment.

To achieve the above object, the present invention provides an audio apparatus, including:

the device comprises a shell, a sound outlet and a balance hole, wherein the shell is provided with an installation cavity, and the sound outlet and the balance hole are communicated with the installation cavity;

the sounding single body is arranged in the mounting cavity and corresponds to the sounding hole, and the sounding single body is provided with a rear sound hole communicated with the mounting cavity; and

the bass tube is arranged in the installation cavity, one end of the bass tube is arranged corresponding to the rear sound hole, and the other end of the bass tube is communicated with the balance hole.

In one embodiment, the bass tube includes a sound receiving section, and a straight section and a bent section formed by extending a branch of one end of the sound receiving section, wherein one end of the sound receiving section, which is far away from the branch, is arranged corresponding to the rear sound hole, one end of the straight section, which is far away from the branch, is communicated with the balance hole, and one end of the bent section, which is far away from the branch, is communicated with the straight section and is located between the branch and the balance hole.

In an embodiment, the bending section includes a direct current section connected to the branch, an arc section formed by bending one end of the direct current section away from the branch, and a connecting section, the connecting section connects the arc section and the straight section, so that the direct current section, the arc section, the connecting section, and the straight section surround to form a through hole, and the direct current section and the sound receiving section are located on the same straight line.

In one embodiment, the angle formed between the straight section and the straight section is larger than the angle formed between the connecting section and the straight section.

In one embodiment, the included angle formed between the straight section and the straight section is less than 90 °;

and/or the included angle formed between the connecting section and the straight section is less than 90 degrees;

and/or the included angle formed between the sound receiving section and the straight section is larger than 90 degrees;

and/or the bending section and the sound receiving section are positioned at two opposite sides of a connecting line of the balance hole and the bifurcation.

In an embodiment, the bass tube further includes a flared section, the flared section is connected to one end of the sound receiving section away from the bifurcation and corresponds to the rear sound hole, and an opening area of the flared section increases from the sound receiving section to the rear sound hole.

In one embodiment, the sound emitting unit includes:

the shell is arranged in the mounting cavity and corresponds to the sound outlet, the shell is provided with an accommodating cavity communicated with the sound outlet and a rear sound hole communicated with the accommodating cavity, and the rear sound hole is opposite to the sound outlet;

the magnetic circuit system is arranged in the accommodating cavity; and

and the vibration system is arranged in the accommodating cavity and is positioned between the sound outlet and the magnetic circuit system.

In one embodiment, the rear sound hole comprises a plurality of sound holes, and the plurality of sound holes are arranged around the magnetic circuit system.

In one embodiment, the vibration system comprises:

the vibrating diaphragm is arranged in the accommodating cavity and is positioned between the sound outlet and the magnetic circuit system; and

and one end of the voice coil is connected with one side of the vibrating diaphragm, which is back to the sound outlet, and the other end of the voice coil is suspended in the accommodating cavity and arranged around the magnetic circuit system.

The invention further provides wearing equipment which comprises a wearing structure and the audio equipment, wherein the wearing structure is connected with the shell of the audio equipment.

According to the technical scheme, the sound production monomer and the bass tube are arranged in the installation cavity of the shell, so that the sound production monomer is arranged corresponding to the sound outlet hole and is provided with the rear sound hole, one end of the bass tube is arranged corresponding to the rear sound hole, the other end of the bass tube is communicated with the balance hole, and the volume of the rear sound cavity of the sound production monomer can be effectively enlarged by utilizing the cooperation of the bass tube and the rear sound hole of the sound production monomer, so that the low-frequency tone quality of the sound production monomer is improved, the bass effect of the audio equipment is improved, the resonance interference is reduced, the sound distortion is greatly reduced, and the tone quality effect is improved. Meanwhile, the bass tube is communicated with the balance hole, so that air pressure balance in the shell can be realized by the bass tube, and the balance hole and the bass tube hole can be integrated into a whole, the number of holes on the appearance surface of the audio equipment is reduced, and the overall attractiveness of the audio equipment is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a wearable device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an audio device according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

FIG. 4 is a schematic cross-sectional view of a bass tube in accordance with an embodiment of the present invention;

FIG. 5 is a schematic diagram of the "out" of the bass tube acoustic signal in accordance with an embodiment of the present invention;

FIG. 6 is a schematic view of the "inflow" of external air pressure inside and outside the bass tube in accordance with an embodiment of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Audio equipment	3	Bass pipe
1	Shell body	31	Radio segment
				11	Mounting cavity	32	Straight section
12	Sound outlet	33	Bending section
				13	Balance hole	331	Direct current section
2	Sound monomer	332	Arc segment
				21	Outer casing	333	Connecting segment
211	Rear sound hole	34	At the bifurcation
				212	Containing cavity	35	Through hole
22	Magnetic circuit system	36	Flaring section
				23	Vibration system	400	Wearing structure
231	Vibrating diaphragm	500	Wearable device
				232	Voice coil

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

Also, the meaning of "and/or" and/or "appearing throughout is meant to encompass three scenarios, exemplified by" A and/or B "including scenario A, or scenario B, or scenarios where both A and B are satisfied.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Usually, a large-sized speaker unit is adopted in a mobile phone to achieve a good sound quality experience, but the watch has a large enough internal space to accommodate the large-sized speaker unlike a mobile phone product. To say this, two points to be explained are: the main frequency band affecting the acoustic experience is the bass frequency band relatively, and the main factor determining the performance of the bass frequency band is the size of the loudspeaker body or the volume of the sound cavity behind the loudspeaker, i.e. the larger the size of the loudspeaker body is, the better the sound quality of the low frequency band of the product is; the larger the volume of the rear sound cavity of the loudspeaker is, the better the low-frequency tone quality of the product is; in addition, the lightness and the comfort of the product are no less than the product is made to be as small and as light as possible. Therefore, in the related art, there are bass effects in the wrist band products in the wearable device and the problem of resonance interference, resulting in sound distortion, so that the sound quality effect is poor.

Based on the above-described concept and problems, the present invention proposes an audio apparatus 100. It is understood that the audio device 100 may be a watch, a sound box, a headphone, or other audio devices, and particularly relates to bass-enhanced audio playback products.

It is understood that the audio device 100 may also be applied to the wearable device 500, and the wearable device 500 may be a smart wristband product, etc., and is not limited herein. In the present embodiment, a wristwatch is taken as an example for explanation, for example, a smart phone type wristwatch.

Referring to fig. 1 to 6, in an embodiment of the present invention, the audio device 100 includes a casing 1, a sound generating unit 2, and a bass tube 3, wherein the casing 1 is provided with a mounting cavity 11, a sound outlet 12 and a balance hole 13 communicating with the mounting cavity 11, the sound generating unit 2 is disposed in the mounting cavity 11 and is disposed corresponding to the sound outlet 12, the sound generating unit 2 is provided with a rear sound hole 211 communicating with the mounting cavity 11, the bass tube 3 is disposed in the mounting cavity 11, one end of the bass tube 3 is disposed corresponding to the rear sound hole 211, and the other end of the bass tube 3 is communicated with the balance hole 13.

In the present embodiment, the casing 1 is used for mounting, fixing and supporting the sound generating unit 2 and the bass tube 3, and the like, that is, the casing 1 provides a mounting base for the sound generating unit 2 and the bass tube 3, and the like. It will be appreciated that the structure of the housing 1 may be a box, sphere, etc. structure having a mounting cavity 11. The housing 1 may be of a unitary construction, which simplifies the manufacture of the housing 1 and increases the structural strength of the housing 1. Of course, the housing 1 may be connected as a whole by a separate structure, so that the sound generating unit 2 and the bass tube 3 can be easily disassembled.

It can be understood that, through setting up sound outlet 12 and balance hole 13 of intercommunication installation cavity 11 on casing 1 to install sound production monomer 2 in casing 1's installation cavity 11, the sound that sound production monomer 2 produced can be spread through sound outlet 12 smoothly, with the broadcast effect that realizes audio equipment 100. Through setting up balance hole 13 to conveniently utilize balance hole 13 balanced installation cavity 11 in the atmospheric pressure when 2 vocal monomers of sound production are sounded, in order to avoid atmospheric pressure unstability and influence the vocal effect of vocal monomers 2.

As shown in fig. 2 and 3, the sound generating unit 2 is disposed in the mounting cavity 11 and corresponds to the sound outlet 12. It can be understood that the sound generating unit 2 is disposed opposite to the sound outlet 12, and in order to make the sound fully output from the sound outlet 12, the housing of the sound generating unit 2 covers the sound outlet 12. Through set up the back sound hole 211 of intercommunication installation cavity 11 on the sound production monomer 2 to conveniently utilize back sound hole 211 to pass through the inside atmospheric pressure of installation cavity 11 and balanced hole 13 balanced sound production monomer 2. In the present embodiment, the sound emitting unit 2 may be selected as a speaker unit.

As shown in fig. 2, fig. 4 to fig. 6, through set up bass pipe 3 in the installation cavity 11 of casing 1, make the one end of bass pipe 3 correspond the setting with back sound hole 211, also the one end opening of bass pipe 3 is just to setting up with back sound hole 211, so can make things convenient for the sound wave that bass pipe 3 took place to back sound hole 211 to realize collecting, the other end and the balance hole 13 intercommunication of bass pipe 3, thereby utilize the lumen of bass pipe 3 itself to come to act as the back sound cavity part of sound production monomer 2 through back sound hole 211, thereby effectively enlarge the back sound cavity volume of sound production monomer 2, thereby the tone quality of high sound production monomer 2 low frequency band, with the bass effect that promotes audio equipment 100, reduce resonance interference, greatly reduced sound distortion, thereby promote the tone quality effect.

It is understood that the bass tube 3 has a tubular structure, which may be a straight tube, a bent tube, or an irregularly shaped tube, and is not limited herein. Through the one end with bass pipe 3 and the corresponding setting of back sound hole 211, the other end and the balance hole 13 intercommunication of bass pipe 3 to merge into one with the pipe export of bass pipe 3 and balance hole 13, reduced the trompil quantity of audio equipment 100 outward appearance face, be favorable to the holistic aesthetic property of audio equipment 100, also can utilize bass pipe 3 to realize that the atmospheric pressure is balanced in casing 1.

According to the audio device 100, the sounding monomer 2 and the bass tube 3 are arranged in the installation cavity 11 of the shell 1, so that the sounding monomer 2 is arranged corresponding to the sounding hole 12 and is provided with the rear sound hole 211, one end of the bass tube 3 is arranged corresponding to the rear sound hole 211, the other end of the bass tube 3 is communicated with the balance hole 13, and the bass tube 3 can be used for being matched with the rear sound hole 211 of the sounding monomer 2 to effectively enlarge the volume of the rear sound cavity of the sounding monomer 2, so that the low-frequency tone quality of the sounding monomer 2 is improved, the bass effect of the audio device 100 is improved, resonance interference is reduced, sound distortion is greatly reduced, and the tone quality effect is improved. Meanwhile, the bass tube 3 is communicated with the balance hole 13, so that air pressure balance in the shell 1 can be realized by the bass tube 3, two-in-one can be realized by the balance hole 13 and the tube hole of the bass tube 3, the number of holes formed in the appearance surface of the audio equipment 100 is reduced, and the overall attractiveness of the audio equipment 100 is facilitated.

In an embodiment, the bass tube 3 includes a sound receiving section 31, and a straight section 32 and a bent section 33 formed by extending and branching one end of the sound receiving section 31, wherein one end of the sound receiving section 31 away from the branch 34 is disposed corresponding to the rear sound hole 211, one end of the straight section 32 away from the branch 34 is communicated with the balance hole 13, and one end of the bent section 33 away from the branch 34 is communicated with the straight section 32 and is located between the branch 34 and the balance hole 13.

As shown in fig. 2, 4 to 6, the bass tube 3 is branched from one end of the sound receiving section 31 far from the rear sound hole 211 to form a straight section 32 and a bent section 33, that is, the branched section 34 is divided into two tube sections, and the branched section 34 is a connection intersection point of the three tube sections of the sound receiving section 31, the straight section 32 and the bent section 33. It will be appreciated that this arrangement allows the sound waves emitted from the rear sound hole 211 to be collected by the sound-collecting section 31, and then split at the branch 34.

In the present embodiment, the end of the straight section 32 away from the bifurcation 34 communicates with the balance hole 13, and the end of the bent section 33 away from the bifurcation 34 communicates with the straight section 32 and is located between the bifurcation 34 and the balance hole 13. It can be understood that the sound wave is divided at the bifurcation 34, then flows through the straight section 32 and the bent section 33, and is converged by the communication between the bent section 33 and the straight section 32, and then flows out through the balance hole 13.

It can be understood that, when the vibrating diaphragm sound production of sound production monomer 2, sound wave also can be sent in the vibrating diaphragm rear (also be back sound cavity) of sound production monomer 2, if sound wave energy who sends sound production monomer 2 to the rear also utilizes, will make the sound wave strengthen, the bass is strengthened. If the inside of the audio device 100 is a closed space, a large amount of heat energy is generated when the internal circuit operates, which may cause the internal temperature to rise; when the diaphragm of the sounding unit 2 vibrates, the air in the internal space is compressed discontinuously, so that the internal pressure is increased (in an ideal state, the relationship PV between temperature and pressure is KT, P is pressure, and T is temperature, the equation shows that the pressure is proportional to the temperature, and the pressure is higher and higher), in combination with the two aspects, the internal temperature is increased, the pressure is increased, and thus, the internal and external air pressures in the casing 1 are balanced by the balance hole 13, so that the internal and external temperatures of the audio device 100 are adjusted by using the balance hole 13 to balance the internal and external air pressures in the casing 1.

In this embodiment, when the diaphragm of the sound generating unit 2 is sounding to the outside in the audio device 100, the sound wave is also radiated from the rear sound cavity of the sound generating unit 2, and if the sound wave energy radiated from the rear sound cavity of the sound generating unit 2 is also utilized, the sound wave is strengthened, and the bass sound is strengthened. It can be understood that, by arranging the bass tube 3 in the installation cavity 11 of the housing 1, and by arranging the bass tube 3 as the sound receiving section 31 and the straight section 32 and the bent section 33 formed by branching one end of the sound receiving section 31, the end of the straight section 32 away from the branch 34 communicates with the balance hole 13, and the end of the bent section 33 away from the branch 34 communicates with the straight section 32 and is located between the branch 34 and the balance hole 13, so that the sound wave emitted through the rear sound hole 211 enters the interior of the bass tube 3 through the sound receiving section 31 and is divided into two at the branch 34, and finally the straight section 32 and the bent section 33 respectively join at the communication between the straight section 32 and the bent section 33, and then "punch out" from the balance hole 13 of the audio device 100 with stronger sound wave, the bass sound quality of the audio device 100 can be effectively improved; meanwhile, the low-frequency band signal has strong diffraction due to long wavelength, and can be easily collected by the sound inlet hole of the bass tube 3 to obtain signal enhancement.

It can be understood that, as shown in fig. 5, when the audio device 100 works, the circuit inside the circuit board inside the audio device 100 transmits a signal to the sound-generating unit 2, the current that constantly changes inside the voice coil of the sound-generating unit 2 is applied by the magnetic field to drive the diaphragm to vibrate back and forth, when the diaphragm of the sound-generating unit 2 vibrates, the diaphragm of the sound-generating unit 2 sends out sound wave signals both from front and back, at this time, a large amount of rear sound signals enter the bass tube 3 from the sound-receiving section 31 through the rear sound hole 211, and further, the sound wave beam flowing through the sound-receiving section 31 is "divided" into two sound wave beams at the branch 34, one sound wave beam flows into the straight section 32, and the other sound wave beam flows into the bent section 33. The sound wave beam flowing into the bent section 33 "flows" to the connection between the bent section 33 and the straight section 32 after the bending phenomenon of the bent section 33, thereby merging with the sound wave beam flowing into the straight section 32. From the transmission path, the time point when the sound beam flowing into the straight section 32 reaches the intersection point of the inflection section 33 and the straight section 32 is obviously prior to the time when the sound beam flowing into the inflection section 33 reaches the intersection point of the inflection section 33 and the straight section 32, and at the intersection point, the sound beam in the straight section 32 and the sound beam in the inflection section 33 flow in opposite directions, so that the sound beam in the straight section 32 is prevented from flowing out in a short time, and the sound wave energy of the sound beam in the straight section 32 is buffered; and during this time the acoustic beam delay phenomenon in the bend section 33 actually buffers the acoustic energy so that its bass effect is enhanced, while at the point of intersection the two acoustic beams "flow" after coming together through the straight section 32 and "flow" out through the balance hole 13 of the audio device 100.

As described above, after the two parts of "buffering" and "slowing" of the sound beam in the opposite "direction" of the bend 33 are applied to the interior of the audio device 100, it is a "slow" process to "flow its sound waves from the interior to the exterior of the housing 1.

When the balance hole 13 is used for balancing the internal air pressure and the external air pressure, the air pressure outside the audio device 100 can be rapidly transmitted to the inside of the device, as shown in fig. 6, when the external atmospheric pressure passes through the straight section 32 from the balance hole 13 and passes through the intersection of the straight section 32 and the bending section 33, most of the external atmospheric pressure passes through the straight section 32 through the straight line and is transmitted to the sound receiving section 31 through the bifurcation 34 to enter the inside of the device, which is obviously faster than the outward transmission of the sound wave beam. Meanwhile, at the intersection of the straight section 32 and the bent section 33, a small portion passes through the bent section 33 and then passes through the sound-absorbing section 31 via the branch 34 to enter the interior of the apparatus (referring to fig. 6, it is obvious that a small portion passes through the bent section 33 at the intersection of the straight section 32 and the bent section 33).

As can be seen from fig. 5 and fig. 6 and the above description, the audio device 100 according to the present invention achieves "fast" balance of internal and external air pressures by arranging the bass tube 3, but "slow" outward transmission of sound beams (i.e. energy), so as to objectively enhance the vibration amplitude of the sound wave signal in the low frequency band (so as to enhance the energy of the air and further increase the sound pressure level of the objective parameter), and transmit the signal to the ears of the user, thereby improving the subjective experience of the user.

In an embodiment, the bending section 33 includes a direct current section 331 connected to the branch 34, an arc-shaped section 332 formed by bending an end of the direct current section 331 away from the branch 34, and a connecting section 333, where the connecting section 333 connects the arc-shaped section 332 and the straight section 32, so that the direct current section 331, the arc-shaped section 332, the connecting section 333, and the straight section 32 enclose to form the through hole 35, and the direct current section 331 and the sound receiving section 31 are located on the same straight line.

As shown in fig. 2, 4 to 6, the straight section 331 of the bending section 33 and the sound receiving section 31 are located on the same straight line, so that the sound beam entering the sound receiving section 31 will have most of the sound wave energy "flow" to the straight section 331 when passing through the bifurcation 34, and then flow to the junction of the connecting section 333 and the straight section 32 after passing through the bending phenomenon of the arc-shaped section 332.

In one embodiment, as shown in fig. 2, 4 to 6, the included angle formed between the straight section 331 and the straight section 32 is larger than the included angle formed between the connecting section 333 and the straight section 32. It will be appreciated that the arrangement is such that the acoustic beam flows more to the straight section 331 and less to the straight section 32, and at the intersection of the connecting section 333 and the straight section 32, the acoustic beam flow direction in the connecting section 333 is opposite to the acoustic beam flow direction in the straight section 32, so as to "block" the acoustic beam fast outflow in the straight section 32, and thus to have a certain buffering effect on the acoustic energy of the acoustic beam in the straight section 32.

Optionally, the angle formed between the straight section 331 and the flat section 32 is less than 90 °. The angle formed between the bass section 31 and the flat section 32 is greater than 90 ° and less than 140 °. The angle formed between the connecting segment 333 and the flat segment 32 is less than 90.

In one embodiment, as shown in fig. 2, 4-6, the bending section 33 and the sound-receiving section 31 are located on opposite sides of the line connecting the balance hole 13 and the bifurcation 34. It will be appreciated that this arrangement facilitates the use of acoustic beam propagation, i.e. after entering the bass tube 3 from the sound receiving section 31, the acoustic beam enters the straight section 32 and the bent section 33 at the branch 34, and after entering the bent section 33, the acoustic beam has the straight section 331, the arc section 332 and the connecting section 333 in sequence, and finally is guided by the connecting section 333 to the junction of the connecting section 333 and the straight section 32.

In one embodiment, the bass tube 3 further includes a flared section 36, the flared section 36 is connected to an end of the sound receiving section 31 away from the bifurcation 34 and corresponds to the rear sound hole 211, and an opening area of the flared section 36 increases from the sound receiving section 31 to the rear sound hole 211.

As shown in fig. 2 and 4, the flared section 36 is connected to the end of the sound receiving section 31 far from the bifurcation 34, that is, the flared section 36 is disposed near the rear sound hole 211 and corresponds to the rear sound hole 211, so that sound reception can be conveniently achieved by using the flared structure of the flared section 36, and sound beams can conveniently enter the sound receiving section 31. It will be appreciated that the open area of the flared section 36 increases from the sound receiving section 31 to the rear soundhole 211.

Optionally, the flared section 36 surrounds the rear sound hole 211 of the sound generating unit 2 and is spaced apart from the sound generating unit 2, so that both the collection of the sound beam and the balancing of the internal and external air pressures can be achieved. In the present embodiment, no component is provided between the flared section 36 and the rear sound hole 211.

In an embodiment, the sound generating unit 2 includes a housing 21, a magnetic circuit system 22 and a vibration system 23, wherein the housing 21 is disposed in the installation cavity 11 and disposed corresponding to the sound outlet 12, the housing 21 is disposed with an accommodating cavity 212 communicating with the sound outlet 12 and a rear sound hole 211 communicating with the accommodating cavity 212, the rear sound hole 211 is disposed opposite to the sound outlet 12, the magnetic circuit system 22 is disposed in the accommodating cavity 212, and the vibration system 23 is disposed in the accommodating cavity 212 and located between the sound outlet 12 and the magnetic circuit system 22.

As shown in fig. 2 and 3, the casing 21 is used for mounting, fixing and protecting the parts such as the magnetic circuit system 22 and the vibration system 23 of the sound generating unit 2, that is, the casing 21 provides a mounting base for the parts such as the magnetic circuit system 22 and the vibration system 23 of the sound generating unit 2. By arranging the accommodating cavity 212 in the housing 21, the magnetic circuit system 22, the vibration system 23 and other components can be conveniently installed and fixed by using the accommodating cavity 212.

It can be understood that the housing 21 is provided with the rear sound hole 211, and the rear sound hole 211 is disposed opposite to the sound outlet hole 12, so that the magnetic circuit system 22 is disposed in the accommodating cavity 212, and the vibration system 23 is disposed in the accommodating cavity 212 and located between the sound outlet hole 12 and the magnetic circuit system 22, that is, the sound outlet hole 12 is located in the front sound cavity formed by the separation of the vibration system 23, and the rear sound hole 211 is located in the rear sound cavity formed by the separation of the vibration system 23. Alternatively, the rear sound hole 211 includes a plurality of rear sound holes 211 provided around the magnetic circuit system 22.

In this embodiment, as shown in fig. 2 and fig. 3, the vibration system 23 includes a diaphragm 231 and a voice coil 232, wherein the diaphragm 231 is disposed in the accommodating cavity 212 and located between the sound outlet 12 and the magnetic circuit system 22, one end of the voice coil 232 is connected to a side of the diaphragm 231 facing away from the sound outlet 12, and the other end of the voice coil 232 is suspended in the accommodating cavity 212 and disposed around the magnetic circuit system 22.

It can be understood that the diaphragm 231 is disposed in the accommodating chamber 212 and connected to the housing 21 to divide the accommodating chamber 212 into a front sound chamber communicated with the sound outlet 12 and a rear sound chamber communicated with the rear sound outlet 211, so that when the voice coil 232 of the vibration system 23 drives the diaphragm 231 to vibrate and generate sound in the magnetic field generated by the magnetic circuit 22, the sound in the front sound chamber is transmitted through the sound outlet 12, the sound beam generated by the vibration of the diaphragm 231 in the rear sound chamber flows out through the rear sound outlet 211 and is collected by the flared section 36 of the bass tube 3 to enter the sound receiving section 31, and further is divided into two parts at the branch 34 to flow into the straight section 32 and the bent section 33, and finally joins at the connection between the straight section 32 and the bent section 33, and then flows out through the balance hole 13.

In this embodiment, the audio device 100 further includes a circuit board, a battery, a motor, and the like, which are mounted in the mounting cavity 11 of the housing 1.

As shown in fig. 1, the present invention further provides a wearable device 500, the wearable device 500 includes a wearable structure 400 and an audio device 100, the wearable structure 400 is connected to the housing 1 of the audio device 100. The specific structure of the audio device 100 refers to the foregoing embodiments, and since the wearable device 500 adopts all technical solutions of all the foregoing embodiments, at least all the beneficial effects brought by the technical solutions of the foregoing embodiments are achieved, and no further description is given here.

In this embodiment, the wearable device 500 may be a wrist band type product, such as a watch, a smart band, or a watch phone, and the like, which is not limited herein.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An audio device, characterized in that the audio device comprises:

2. The audio device as claimed in claim 1, wherein the bass tube includes a sound receiving section, and a straight section and a bent section formed by extending and branching an end of the sound receiving section, an end of the sound receiving section away from the branch is disposed corresponding to the back sound hole, an end of the straight section away from the branch is communicated with the balance hole, and an end of the bent section away from the branch is communicated with the straight section and is located between the branch and the balance hole.

3. The audio device as claimed in claim 2, wherein the bending section comprises a dc section connected to the branch, an arc section formed by bending an end of the dc section away from the branch, and a connecting section connecting the arc section and the straight section, so that the dc section, the arc section, the connecting section, and the straight section enclose to form a through hole, and the dc section and the sound receiving section are located on the same straight line.

4. The audio device of claim 3, wherein an angle formed between the straight section and the straight section is larger than an angle formed between the connecting section and the straight section.

5. The audio device of claim 4, wherein the angle formed between the straight section and the straight section is less than 90 °;

6. The audio device as claimed in claim 2, wherein said bass tube further comprises a flared section connected to an end of said sound receiving section remote from said bifurcation and corresponding to said rear sound hole, an opening area of said flared section increasing from said sound receiving section to said rear sound hole.

7. The audio device of any of claims 1-6, wherein the sound-emitting unit comprises:

the magnetic circuit system is arranged in the accommodating cavity; and

8. The audio device as in claim 7, wherein said back sound hole comprises a plurality of said back sound holes disposed around said magnetic circuit system.

9. The audio device of claim 7, wherein the vibration system comprises:

10. Wearing device, characterized in that it comprises a wearing structure and an audio device according to any one of claims 1 to 9, said wearing structure being connected to a housing of said audio device.