CN117440297A - Speaker module and intelligent head-mounted equipment - Google Patents
Speaker module and intelligent head-mounted equipment Download PDFInfo
- Publication number
- CN117440297A CN117440297A CN202311508526.6A CN202311508526A CN117440297A CN 117440297 A CN117440297 A CN 117440297A CN 202311508526 A CN202311508526 A CN 202311508526A CN 117440297 A CN117440297 A CN 117440297A
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- sound
- speaker
- hole
- cavity
- loudspeaker
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- 238000005086 pumping Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 239000011521 glass Substances 0.000 description 5
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004984 smart glass Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Abstract
The invention discloses a speaker module and intelligent head-mounted equipment, the speaker module includes: the loudspeaker comprises a loudspeaker shell, wherein an accommodating cavity is arranged in the loudspeaker shell, and the accommodating cavity is provided with a first space and a second space; the first sound generation unit divides the first space into a first rear sound cavity and a first front sound cavity, a first sound raising hole is formed in the first surface of the loudspeaker shell, and the first front sound cavity is communicated with the outside of the loudspeaker shell through the first sound raising hole; the second sound production unit separates the first space into a second back sound cavity and a second front sound cavity, a second sound raising hole is formed in the first surface, and the second front sound cavity is communicated with the outside of the loudspeaker shell through the second sound raising hole. Compared with the prior art, the invention has the advantages that the two loudspeaker holes are arranged on the same surface of the loudspeaker shell, so that the sound of the loudspeaker module is supplemented and overlapped, and the integral frequency range and the loudness are improved.
Description
Technical Field
The invention relates to the technical field of intelligent wearable equipment, in particular to a loudspeaker module and intelligent head-mounted equipment.
Background
The speaker of the head wearing product is mainly a single speaker, is generally provided with a single sounding vibrating diaphragm and a main speaker hole, adopts the design of a rear cavity opening and discharging hole, and sound is emitted from the vibrating diaphragm, transmitted to an external space through the main speaker hole and finally reaches the ears of a person.
The prior art scheme is limited by the performance of a single loudspeaker, and can not simultaneously meet the requirements of an ideal frequency range and enough loudness, so that the low-frequency effect is limited generally, the requirement of better low-frequency playback in practical application is not met, the structure is very dependent on the performance of the single loudspeaker, and the optimization space of an algorithm is very small.
Disclosure of Invention
The invention aims to provide a loudspeaker module and intelligent head-mounted equipment so as to solve the technical problems in the prior art, and the loudspeaker module can improve the frequency range and the loudness of the whole loudspeaker.
In a first aspect, the present invention provides a speaker module, including:
the loudspeaker comprises a loudspeaker shell, wherein an accommodating cavity is arranged in the loudspeaker shell, and the accommodating cavity is provided with a first space and a second space;
the first sound generation unit is fixed in the accommodating cavity, the first sound generation unit divides the first space into a first rear sound cavity and a first front sound cavity, a first sound pumping hole is formed in the first surface of the loudspeaker shell, and the first front sound cavity is communicated with the outside of the loudspeaker shell through the first sound pumping hole;
the second sound generating unit is fixed in the accommodating cavity, the second sound generating unit divides the first space into a second rear sound cavity and a second front sound cavity, a second sound raising hole is formed in the first surface, and the second front sound cavity is communicated with the outside of the loudspeaker shell through the second sound raising hole.
In the speaker module as described above, preferably, the first speaker hole and the second speaker hole extend along a first direction, a projection of the first speaker hole in a second direction completely falls on the second speaker hole, and the first direction is perpendicular to the second direction.
In the speaker module set according to the above aspect, it is preferable that the first speaker hole and the second speaker hole are both rectangular or kidney-shaped structures.
In the speaker module set as described above, preferably, the speaker housing is provided with a sound leakage hole, and the first rear sound cavity and/or the second rear sound cavity are/is communicated with the outside of the speaker housing through the sound leakage hole.
In the speaker module as described above, preferably, the speaker housing has a second surface, the second surface is disposed opposite to the first surface, and the sound release hole is disposed on the second surface.
In the speaker module set as described above, preferably, the first sound generating unit is configured to receive a first frequency band signal, and the second sound generating unit is configured to receive a second frequency band signal, where a frequency difference of the first frequency band signal is different from a frequency of the second frequency band signal.
In the speaker module set as described above, preferably, the frequency of the first frequency band signal is greater than the frequency of the second frequency band signal.
A speaker module as described above, wherein preferably the first rear acoustic chamber and the second rear acoustic chamber are combined into one complete rear acoustic chamber.
The speaker module as described above, preferably, the speaker housing includes a first sub-housing and a second sub-housing that are covered, the first sound generating unit is located in the first sub-housing, and the second sound generating unit is located in the second sub-housing.
In a second aspect, the present invention provides an intelligent headset, including the foregoing speaker module.
Compared with the prior art, the invention has the advantages that the two loudspeaker holes are arranged on the same surface of the loudspeaker shell, so that the sound of the loudspeaker module is supplemented and overlapped, the integral frequency range and the loudness are improved, particularly the playback effect of low-frequency signals is enhanced, and the tone quality is enhanced.
Drawings
FIG. 1 is an isometric view of a unitary structure of an embodiment of the present invention from a perspective;
FIG. 2 is an isometric view of another perspective of the overall structure of the provided embodiment of the invention;
FIG. 3 is a front view of the overall structure of an embodiment provided by the present invention;
FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;
FIG. 5 is a rear view of the overall structure of an embodiment provided by the present invention;
FIG. 6 is a B-B cross-sectional view of FIG. 5;
FIG. 7 is a schematic view of an exploded view of the overall structure of the present invention;
fig. 8 is a schematic view of an exploded view of another perspective of the overall structure of the present invention in accordance with an embodiment of the present invention.
Reference numerals illustrate: 1-a loudspeaker shell, 11-a first surface, 12-a second surface, 2-a containing cavity, 21-a first front sound cavity, 22-a first rear sound cavity, 23-a second front sound cavity, 24-a second rear sound cavity, 3-a first loudspeaker hole, 4-a second loudspeaker hole, 5-a sound release hole, 6-a first sub-shell and 7-a second sub-shell;
d1—a first direction;
d2—second direction.
Detailed Description
The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
As shown in fig. 1 to 8, an embodiment of the present invention provides a speaker module including:
the speaker housing 1, the speaker housing 1 is provided with a housing cavity 2, the housing cavity 2 has a first space and a second space, and those skilled in the art can know that the first space and the second space can be two spaces which are spaced in a physical sense, and the first space and the second space are not mutually communicated, and can also be two areas which are artificially defined, and the two areas are two different areas of a complete space, and the two areas are mutually communicated.
The first sound generating unit (not shown) is fixed in the accommodating cavity 2 and is located in the first space, the first sound generating unit divides the first space into a first rear sound cavity 22 and a first front sound cavity 21, a first sound pumping hole 3 is formed in the first surface 11 of the loudspeaker shell 1, the first front sound cavity 21 is communicated with the outside of the loudspeaker shell 1 through the first sound pumping hole 3, the first sound generating unit is used for vibrating and sounding, in one possible implementation mode, the first sound generating unit can comprise structures such as a vibrating diaphragm, a voice coil and a magnetic circuit unit, the voice coil with variable current is vibrated by ampere force of different magnitudes under the action of the magnetic circuit unit, vibration of the vibrating diaphragm drives vibration of the voice coil, vibration of the vibrating diaphragm drives surrounding air to vibrate, and accordingly sound is generated, and the first sound pumping hole 3 radiates sound waves of the first front sound cavity 21 to the outside.
The second sound generating unit (not shown) is fixed in the accommodating cavity 2 and is located in the second space, the second sound generating unit divides the second space into a second rear sound cavity 24 and a second front sound cavity 23, the first surface 11 is provided with a second sound pumping hole 4, the second front sound cavity 23 is communicated with the outside of the loudspeaker shell 1 through the second sound pumping hole 4, the second sound generating unit is also used for vibration sound generation, and the sound generating principle is the same as that of the first sound generating unit and is not repeated herein.
The first loudspeaker hole 3 and the second loudspeaker hole 4 are both positioned on the same surface of the loudspeaker shell 1, sound waves emitted by the first loudspeaker hole 3 and the second loudspeaker hole are supplemented and overlapped, meanwhile, the first loudspeaker unit and the second loudspeaker unit can be driven by the same or different signals, the integral frequency range and loudness are improved, particularly the playback effect of low-frequency signals is enhanced, and the tone quality is enhanced.
Further, referring to fig. 3 and fig. 5, the first speaker hole 3 and the second speaker hole 4 extend along the first direction D1, and are disposed in parallel, and a predetermined distance is provided between the first speaker hole 3 and the second speaker hole 4, where the predetermined distance may be determined according to the actual sound quality adjustment requirement, so as to achieve a good sound wave superposition effect, which is not limited herein.
In a possible implementation manner, referring to fig. 3, the length of the first speaker hole 3 is smaller than that of the second speaker hole 4, the projection of the first speaker hole 3 in the second direction D2 falls on the second speaker hole 4 completely, the first direction D1 is perpendicular to the second direction D2, and the emitted sound wave and the reflected sound wave can be radiated effectively gradually, so as to further improve the sound wave superposition effect, and those skilled in the art can know that the length of the first speaker hole 3 can be the same as that of the second speaker hole 4, and the projection of the first speaker hole 3 in the second direction D2 overlaps with the second speaker hole 4, and the two are arranged side by side.
Referring to fig. 1 and fig. 3, the first speaker hole 3 and the second speaker hole 4 are both rectangular or kidney-shaped structures, and the length of the first speaker hole along the first direction D1 is much longer than the length of the second speaker hole along the second direction D2, so that the energy of the reflected sound wave can be reduced, and meanwhile, most or all of the reflected sound wave can be radiated to the outside gradually by the flat first speaker hole 3 or the second speaker hole 4, so that standing wave interference inside the first front sound cavity 21 or the second front sound cavity 23 can be avoided to a greater extent, the fluctuation range of the frequency response curve of the speaker module in the full frequency band is reduced, and the acoustic performance of the speaker module is improved.
In the embodiment provided in this application, referring to fig. 2, the speaker housing 1 is provided with a sound release hole 5, where the sound release hole 5 is also in a flat rectangular or kidney-shaped structure, and the first rear sound cavity 22 and/or the second rear sound cavity 24 are communicated with the outside of the speaker housing 1 through the sound release hole 5, and the sound release hole 5 is matched with the first speaker hole 3 and/or the second speaker hole 4, so as to reduce its sound leakage by using a dipole effect, thereby improving privacy. The dipole effect is understood and can be achieved by those skilled in the art and will not be described in detail in this application.
In a possible implementation manner, the first rear acoustic cavity 22 of the first acoustic unit is separated from the second rear acoustic cavity 24 of the second acoustic unit, which are not communicated with each other, and two acoustic leakage holes 5 are provided on the speaker housing 1, where the first rear acoustic cavity 22 and the second rear acoustic cavity 24 respectively correspond to one of the acoustic leakage holes 5.
In another possible embodiment, referring to fig. 4 and fig. 6, the first space and the second space are surrounded to form a complete space, and are mutually communicated, the first rear acoustic cavity 22 and the second rear acoustic cavity 24 are combined to form a complete rear acoustic cavity, the first acoustic unit and the second acoustic unit share one rear acoustic cavity, and meanwhile, only one acoustic leakage hole 5 is arranged, so that the structure is simplified.
Further, the speaker housing 1 has a second surface 12, the second surface 12 is opposite to the first surface 11, the extension directions of the first surface 11 and the second surface 12 are the same, the sound release hole 5 is disposed on the second surface 12, the sound release hole 5 and the first sound release hole 3 and the second sound release hole 4 are respectively disposed on two opposite surfaces, as shown in fig. 1, 2, 4 and 6, the shape of the sound release hole 5 is adapted to the formation of the first sound release hole 3 and the second sound release hole 4, the position of the sound release hole 5 on the second surface 12 is staggered or only partially overlapped with the projection positions of the first sound release hole 3 and the second sound release hole 4, and the sound waves generated by the first sound release unit and the sound waves generated by the second sound release unit are overlapped with each other and form a dipole effect with the sound release sound generated by the sound release hole 5 to cancel each other, thereby further reducing the sound release so as to improve the privacy of the speaker module.
In the embodiment that this application provided, first sound generating unit and second sound generating unit can be designed to different performances, such as different frequency ranges, and the rethread is collocated mutually, and holistic frequency is over-range, specifically, first sound generating unit is used for receiving first frequency channel signal, and second sound generating unit is used for receiving second frequency channel signal, and the frequency difference of first frequency channel signal is in the frequency of second frequency channel signal to realize the acoustic wave interact of different combinations, provide bigger operating space for initiative algorithm, can provide richer acoustic experience simultaneously.
In a possible embodiment, the frequency of the first frequency band signal is greater than the frequency of the second frequency band signal. The first frequency band signal can be the medium-high frequency signal, the second frequency band signal can be the medium-low frequency signal, the first sound generating unit can be the medium-low frequency loudspeaker, the second sound generating unit can be the medium-high frequency loudspeaker, the purposes of improving the high-frequency reproduction of the loudspeaker module and reducing intermodulation distortion of the loudspeaker module are achieved, meanwhile, the ideal frequency range and enough loudness are met, and the better low-frequency replay requirement in practical application is met.
In the embodiment provided in this application, referring to fig. 7 and fig. 8, the speaker housing 1 includes a first sub-housing 6 and a second sub-housing 7 that are covered, the first sub-housing 6 and the second sub-housing 7 are buckled and connected by a buckling piece, and the structure of the buckling piece can refer to the technical scheme in the prior art, which is not described herein, and in practical application, the speaker housing 1 may also be other structures, for example, be formed by combining more housings, or be integrally formed, which is not limited herein.
The first sound generating unit is located first sub-casing 6, and first sound raising hole 3 locates on first sub-casing 6 equally, and the second sound generating unit is located second sub-casing 7, and first sound raising hole 3 locates on second sub-casing 7 equally, easily assembles first sound generating unit and second sound generating unit to in the speaker casing 1 like this, and convenient to detach maintains simultaneously, has satisfied the needs of mass production.
Based on the above embodiments, the present application also provides a smart headset, such as smart glasses, headphones, HMD (Head-Mounted display) device, or the like. The smart wearable device may be an AR (augmented Reality), VR (Virtual Reality), MR (Mix Reality) device.
The intelligent headset comprises the loudspeaker module, for example, the AR glasses comprise a glasses frame and two glasses legs connected to two opposite ends of the glasses frame, and the loudspeaker module is arranged at symmetrical positions of the two glasses legs respectively.
Synthesize above-mentioned each embodiment of this application, the speaker module of this application's intelligent headset is through setting up two holes of raising one's voice, and two holes of raising one's voice are located on the same surface of speaker housing 1 to carry out the supplementary stack to speaker module's sound, improve holistic frequency range and loudness simultaneously, especially strengthen the playback effect of low frequency signal, realized tone quality reinforcing.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (10)
1. A speaker module, comprising:
the loudspeaker comprises a loudspeaker shell, wherein an accommodating cavity is arranged in the loudspeaker shell, and the accommodating cavity is provided with a first space and a second space;
the first sound generation unit is fixed in the accommodating cavity, the first sound generation unit divides the first space into a first rear sound cavity and a first front sound cavity, a first sound pumping hole is formed in the first surface of the loudspeaker shell, and the first front sound cavity is communicated with the outside of the loudspeaker shell through the first sound pumping hole;
the second sound generating unit is fixed in the accommodating cavity, the second sound generating unit divides the first space into a second rear sound cavity and a second front sound cavity, a second sound raising hole is formed in the first surface, and the second front sound cavity is communicated with the outside of the loudspeaker shell through the second sound raising hole.
2. The speaker module of claim 1, wherein the first speaker hole and the second speaker hole each extend along a first direction, a projection of the first speaker hole in a second direction completely falls on the second speaker hole, and the first direction is perpendicular to the second direction.
3. The speaker module of claim 1, wherein the first speaker hole and the second speaker hole are each rectangular or kidney-shaped structures.
4. The loudspeaker module of claim 1, wherein the loudspeaker housing is provided with a sound leakage hole, and the first rear sound cavity and/or the second rear sound cavity are/is communicated with the outside of the loudspeaker housing through the sound leakage hole.
5. The speaker module of claim 4, wherein the speaker housing has a second surface disposed opposite the first surface, and the sound release aperture is disposed on the second surface.
6. The speaker module of claim 1, wherein the first sound generating unit is configured to receive a first frequency band signal, and the second sound generating unit is configured to receive a second frequency band signal, and wherein a frequency of the first frequency band signal differs from a frequency of the second frequency band signal.
7. The speaker module of claim 6, wherein the frequency of the first frequency band signal is greater than the frequency of the second frequency band signal.
8. The speaker module of claim 1, wherein the first rear acoustic chamber and the second rear acoustic chamber are combined into a single complete rear acoustic chamber.
9. The speaker module of claim 1, wherein the speaker housing comprises a first sub-housing and a second sub-housing that are covered, the first sound generating unit is located in the first sub-housing, and the second sound generating unit is located in the second sub-housing.
10. A smart headset comprising the speaker module of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311508526.6A CN117440297A (en) | 2023-11-13 | 2023-11-13 | Speaker module and intelligent head-mounted equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311508526.6A CN117440297A (en) | 2023-11-13 | 2023-11-13 | Speaker module and intelligent head-mounted equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117440297A true CN117440297A (en) | 2024-01-23 |
Family
ID=89547927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311508526.6A Pending CN117440297A (en) | 2023-11-13 | 2023-11-13 | Speaker module and intelligent head-mounted equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117440297A (en) |
-
2023
- 2023-11-13 CN CN202311508526.6A patent/CN117440297A/en active Pending
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